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Initial import from subversion repo

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Christopher Mosher 2012-04-20 20:04:34 -04:00
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cmosher = Christopher A. Mosher <chris@mosher.mine.nu>

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the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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For the analogtv class, portions were inspired by Trevor Blackwell's analog
TV module for xscreensaver. For those portions:
/* analogtv, Copyright (c) 2003, 2004 Trevor Blackwell <tlb@tlb.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation. No representations are made about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*/
Thanks, Trevor, for your code and your inspiration.
The ADC and SBC instructions of the CPU class were based on those taken
from Verhille Arnaud's POM1 Apple 1 emulator. For those portions:
// Copyright (C) 2000, by Verhille Arnaud, GPLv2 license.
Thanks, Verhille.

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EPPLE ][ makes use of the Simple DirectMedia Layer (SDL) library.
SDL is included under the terms of the LGPL license, a copy of which
is provided below.
Windows: The EPPLE ][ executable (epple2.exe) links against SDL.dll.
Linux: The EPPLE ][ executable (/bin/epple2) links against libSDL.so.
These are standard versions of the SDL libaray, which are available
from the SDL web site: http://wsw.libsdl.org
Many thanks to those who are responsible for making SDL what it is today,
and making it freely available for others.
GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.
0. Additional Definitions.
As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.
"The Library" refers to a covered work governed by this License,
other than an Application or a Combined Work as defined below.
An "Application" is any work that makes use of an interface provided
by the Library, but which is not otherwise based on the Library.
Defining a subclass of a class defined by the Library is deemed a mode
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A "Combined Work" is a work produced by combining or linking an
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with which the Combined Work was made is also called the "Linked
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The "Minimal Corresponding Source" for a Combined Work means the
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based on the Application, and not on the Linked Version.
The "Corresponding Application Code" for a Combined Work means the
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and utility programs needed for reproducing the Combined Work from the
Application, but excluding the System Libraries of the Combined Work.
1. Exception to Section 3 of the GNU GPL.
You may convey a covered work under sections 3 and 4 of this License
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2. Conveying Modified Versions.
If you modify a copy of the Library, and, in your modifications, a
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b) under the GNU GPL, with none of the additional permissions of
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3. Object Code Incorporating Material from Library Header Files.
The object code form of an Application may incorporate material from
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(ten or fewer lines in length), you do both of the following:
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taken together, effectively do not restrict modification of the
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c) For a Combined Work that displays copyright notices during
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these notices, as well as a reference directing the user to the
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d) Do one of the following:
0) Convey the Minimal Corresponding Source under the terms of this
License, and the Corresponding Application Code in a form
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recombine or relink the Application with a modified version of
the Linked Version to produce a modified Combined Work, in the
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Corresponding Source.
1) Use a suitable shared library mechanism for linking with the
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Application with a modified version of the Linked Version. (If
you use option 4d0, the Installation Information must accompany
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Information in the manner specified by section 6 of the GNU GPL
for conveying Corresponding Source.)
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You may place library facilities that are a work based on the
Library side by side in a single library together with other library
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choice, if you do both of the following:
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on the Library, uncombined with any other library facilities,
conveyed under the terms of this License.
b) Give prominent notice with the combined library that part of it
is a work based on the Library, and explaining where to find the
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6. Revised Versions of the GNU Lesser General Public License.
The Free Software Foundation may publish revised and/or new versions
of the GNU Lesser General Public License from time to time. Such new
versions will be similar in spirit to the present version, but may
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Each version is given a distinguishing version number. If the
Library as you received it specifies that a certain numbered version
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conditions either of that published version or of any later version
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0
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Basic Installation
==================
These are generic installation instructions.
The `configure' shell script attempts to guess correct values for
various system-dependent variables used during compilation. It uses
those values to create a `Makefile' in each directory of the package.
It may also create one or more `.h' files containing system-dependent
definitions. Finally, it creates a shell script `config.status' that
you can run in the future to recreate the current configuration, a file
`config.cache' that saves the results of its tests to speed up
reconfiguring, and a file `config.log' containing compiler output
(useful mainly for debugging `configure').
If you need to do unusual things to compile the package, please try
to figure out how `configure' could check whether to do them, and mail
diffs or instructions to the address given in the `README' so they can
be considered for the next release. If at some point `config.cache'
contains results you don't want to keep, you may remove or edit it.
The file `configure.in' is used to create `configure' by a program
called `autoconf'. You only need `configure.in' if you want to change
it or regenerate `configure' using a newer version of `autoconf'.
The simplest way to compile this package is:
1. `cd' to the directory containing the package's source code and type
`./configure' to configure the package for your system. If you're
using `csh' on an old version of System V, you might need to type
`sh ./configure' instead to prevent `csh' from trying to execute
`configure' itself.
Running `configure' takes a while. While running, it prints some
messages telling which features it is checking for.
2. Type `make' to compile the package.
3. Type `make install' to install the programs and any data files and
documentation.
4. You can remove the program binaries and object files from the
source code directory by typing `make clean'.
Compilers and Options
=====================
Some systems require unusual options for compilation or linking that
the `configure' script does not know about. You can give `configure'
initial values for variables by setting them in the environment. Using
a Bourne-compatible shell, you can do that on the command line like
this:
CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
Or on systems that have the `env' program, you can do it like this:
env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
Compiling For Multiple Architectures
====================================
You can compile the package for more than one kind of computer at the
same time, by placing the object files for each architecture in their
own directory. To do this, you must use a version of `make' that
supports the `VPATH' variable, such as GNU `make'. `cd' to the
directory where you want the object files and executables to go and run
the `configure' script. `configure' automatically checks for the
source code in the directory that `configure' is in and in `..'.
If you have to use a `make' that does not supports the `VPATH'
variable, you have to compile the package for one architecture at a time
in the source code directory. After you have installed the package for
one architecture, use `make distclean' before reconfiguring for another
architecture.
Installation Names
==================
By default, `make install' will install the package's files in
`/usr/local/bin', `/usr/local/man', etc. You can specify an
installation prefix other than `/usr/local' by giving `configure' the
option `--prefix=PATH'.
You can specify separate installation prefixes for
architecture-specific files and architecture-independent files. If you
give `configure' the option `--exec-prefix=PATH', the package will use
PATH as the prefix for installing programs and libraries.
Documentation and other data files will still use the regular prefix.
If the package supports it, you can cause programs to be installed
with an extra prefix or suffix on their names by giving `configure' the
option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
Optional Features
=================
Some packages pay attention to `--enable-FEATURE' options to
`configure', where FEATURE indicates an optional part of the package.
They may also pay attention to `--with-PACKAGE' options, where PACKAGE
is something like `gnu-as' or `x' (for the X Window System). The
`README' should mention any `--enable-' and `--with-' options that the
package recognizes.
For packages that use the X Window System, `configure' can usually
find the X include and library files automatically, but if it doesn't,
you can use the `configure' options `--x-includes=DIR' and
`--x-libraries=DIR' to specify their locations.
Specifying the System Type
==========================
There may be some features `configure' can not figure out
automatically, but needs to determine by the type of host the package
will run on. Usually `configure' can figure that out, but if it prints
a message saying it can not guess the host type, give it the
`--host=TYPE' option. TYPE can either be a short name for the system
type, such as `sun4', or a canonical name with three fields:
CPU-COMPANY-SYSTEM
See the file `config.sub' for the possible values of each field. If
`config.sub' isn't included in this package, then this package doesn't
need to know the host type.
If you are building compiler tools for cross-compiling, you can also
use the `--target=TYPE' option to select the type of system they will
produce code for and the `--build=TYPE' option to select the type of
system on which you are compiling the package.
Sharing Defaults
================
If you want to set default values for `configure' scripts to share,
you can create a site shell script called `config.site' that gives
default values for variables like `CC', `cache_file', and `prefix'.
`configure' looks for `PREFIX/share/config.site' if it exists, then
`PREFIX/etc/config.site' if it exists. Or, you can set the
`CONFIG_SITE' environment variable to the location of the site script.
A warning: not all `configure' scripts look for a site script.
Operation Controls
==================
`configure' recognizes the following options to control how it
operates.
`--cache-file=FILE'
Use and save the results of the tests in FILE instead of
`./config.cache'. Set FILE to `/dev/null' to disable caching, for
debugging `configure'.
`--help'
Print a summary of the options to `configure', and exit.
`--quiet'
`--silent'
`-q'
Do not print messages saying which checks are being made.
`--srcdir=DIR'
Look for the package's source code in directory DIR. Usually
`configure' can determine that directory automatically.
`--version'
Print the version of Autoconf used to generate the `configure'
script, and exit.
`configure' also accepts some other, not widely useful, options.

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SUBDIRS = src conf installer
NAME = epple2
VERSION = 1.0
ARCH = i386
EXTRA_DIST = COPYING.sdl COPYING.other epple2.spec
RPM := $(abspath rpm)
package: $(NAME).spec dist
mkdir -p $(RPM)/BUILD
mkdir -p $(RPM)/BUILDROOT
mkdir -p $(RPM)/RPMS
mkdir -p $(RPM)/SOURCES
mkdir -p $(RPM)/SPECS
mkdir -p $(RPM)/SRPMS
mkdir -p $(RPM)/VPATH
cp $(NAME)-$(VERSION).tar.gz $(RPM)/SOURCES
touch .rpmmacros
echo "%_prefix $(prefix)" >>$(RPM)/.rpmmacros
echo "%_sysconfdir $(sysconfdir)" >>$(RPM)/.rpmmacros
echo "%_topdir $(RPM)" >>$(RPM)/.rpmmacros
HOME=$(RPM) rpmbuild -ba --clean --buildroot $(RPM)/BUILDROOT $<
fakeroot alien $(RPM)/RPMS/$(ARCH)/$(NAME)-$(VERSION)-1.$(ARCH).rpm

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epple2 (Emulated Apple ][)
--------------------------
epple2 is an emulator of the Apple ][ and Apple ][ plus
computers from Apple, Inc. It strives to faithfully simulate
much of the internal workings of the original Apple ][,
including the individual cycles of the 6502 CPU, and the
NTSC video signal generation, including the "strange orange
line", other color anomalies, and the "floating data bus."
Understanding the Apple ][, by Jim Sather, is the primary
source for information about the internals of the Apple ][.
The CPU and video timings are synchronized, and the emulator
is designed to run at the same speed as the original
machine (if your computer is fast enough). It also emulates
several different types of television screens and monitors
for the display.
It includes emulation of a Disk ][ controller card, a ROM
firmware card, and a RAM "Language" card, as well as a
simple clock card.
epple2 is written in C++, and is designed to be buildable
on Windows (with MSYS/MinGW or Visual C++ 2008, Express
Edition) or Linux (gcc).
The SDL library (http://www.libsdl.org) is the only dependency
of epple2 (see below).
The epple2 is released under GPLv3.
RUNNING
-------
SDL:
To run epple2, you need to have the SDL libraries installed.
See http://www.libsdl.org for information on SDL.
You'll need to download and install the "Runtime Libraries"
for your platform (Win32 or Linux).
ROM:
With epple2 and SDL, you can run the emulator, but it won't
do too much without the appropriate Apple ROM code. You can
use ROM images from your own original Apple ][ or ][ plus, or
you can find some on the Internet (check the Asimov Apple
repository).
Alternatively, you can build the ROMs yourself from assembly
language source files I've created; these are available in
the apple2src project. (See that project for details).
Disks:
You will also probably want floppy disk images. Again, you can
download some from the Internet, especially from Asimov. The
epple2 only reads NIBBLE IMAGES. If you only have 16 sector
images, you will need to convert them to nibble images; you
can use CiderPress (http://ciderpress.sourceforge.net).
BUILDING
--------
See INSTALL for generic instructions on building and installing
a normal distribution.
If you want to build epple2 from the source distribution,
you'll need to have the SDL development libraries installed.
See http://www.libsdl.org for information on SDL.
You'll need to download and install the "Development Libraries"
for your platform (Win32 or Linux).
Developers fetching directly from the repository instead of
downloading the distribution will need to execute the bootstrap
script before running ./configure or make.
PLATFORM-SPECIFIC BUILDING
--------------------------
Windows/MSYS
--------------
Install MSYS into C:\MSYS\1.0
Install MinGW into C:\mingw
Install SDL. At http://www.libsdl.org/ find the download page.
Download the "Development Libraries" for Win32, mingw, for example:
SDL-devel-1.2.13-mingw32.tar.gz (Mingw32)
And save it to your MSYS home directory.
Untar the SDL archive to your home directory:
$ cd
$ tar xzvf SDL-devel-1.2.13-mingw32.tar.gz
Then follow the instructions to install SDL, for example:
$ cd SDL-1.2.13
$ make native
Run MSYS, and at the bash prompt, go to your home directory and
untar the epple2 source distribution tar file and cd to the
epple2 directory. For example:
$ cd
$ tar xzvf epple2-1.0.tar.gz
NOTE: If you checked out epple2 from subversion, rather
than downloading the distribution, you need to first run
the bootstrap script. But first you'll need to install
autoconf, automake, etc.
$ cd
$ cd epple2
$ ./bootstrap
Then build as follows. I recommend doing a VPATH build, in
which you build into a different directory that the source
directory. To accomplish this, create a new directory for
building, somewhere, such as:
$ cd
$ mkdir buildepple2
$ cd buildepple2
Then run configure from there. For the MSYS build to work,
you need some extra parameters to the build, and you could
also add some compiler options to optimize the build. For
example (from the buildepple2 directory you just created):
$ ~/epple2/configure --prefix= \
CXXFLAGS="-I/usr/include -O4 -msse3" \
CFLAGS="-I/usr/include" \
LDFLAGS="-L/usr/lib -mconsole -mthreads -mno-cygwin"
$ make
$ make install
Then follow the instruction above under "RUNNING" for ROM and disks.

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etcdir = $(sysconfdir)/epple2
if HAVE_WINDOWS
CONF_PREFIX =
else
CONF_PREFIX = $(prefix)/
endif
%.conf: %.conf.in
sed -e 's,$$(PREFIX),$(CONF_PREFIX),g' <$< >$@
CONF_FILES = \
epple2.conf \
epple2.a2bare.conf \
epple2.a2dos33.conf \
epple2.a2pbare.conf \
epple2.a2ploaded.conf \
epple2.rev0bare.conf \
epple2.a2dos31.conf \
epple2.a2loaded.conf \
epple2.a2pdos33.conf
etc_DATA = $(CONF_FILES)
EXTRA_DIST = $(etc_DATA)

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# Apple ][ (with revision 1 or later motherboard), bare
#
# This set up is a standard Apple ][ (with a newer motherboard,
# that is, not an original revision zero motherboard), and
# nothing in any slots. It has Integer BASIC and the old Monitor ROMs.
import motherboard rom 1000 $(PREFIX)lib/apple2/system/intbasic/intbasic.ex65
import motherboard rom 2425 $(PREFIX)lib/apple2/system/other/other.ex65
import motherboard rom 2800 $(PREFIX)lib/apple2/system/monitor/apple2/monitor.ex65

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# Apple ][ with (13-sector) DOS 3.1 (the original version of DOS 3.3).
#
# After power-up, type C600G to boot the DOS 3.1 System Master disk.
#
# Since this System Master disk has "APPLESOFT" on it, you can type
# FP at the Integer BASIC prompt to run Applesoft BASIC. When you do
# it this way, you get an interesting title page for Applesoft, showing
# copyright notices for Apple and Microsoft.
# Integer BASIC and old Monitor ROMs
import motherboard rom 1000 $(PREFIX)lib/apple2/system/intbasic/intbasic.ex65
import motherboard rom 2425 $(PREFIX)lib/apple2/system/other/other.ex65
import motherboard rom 2800 $(PREFIX)lib/apple2/system/monitor/apple2/monitor.ex65
# Disk ][ card with 13-sector ROMs
slot 6 disk
import slot 6 rom 0 $(PREFIX)lib/apple2/dos3x/13sector/controller/disk2.ex65
# Insert DOS 3.1 System Master disk into drive 1
load slot 6 drive 1 $(PREFIX)lib/apple2/dos3x/13sector/disks/dos310/clean31sysmas_stock_rawdos.nib

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# Apple ][ with language card and DOS 3.3 (original version)
#
# After power-on, type C600G to boot the DOS 3.3 System Master disk.
# Notice it shows "APPLE II STANDARD" for this machine, and then it
# loads APPLESOFT into the language card.
#
# You can use FP to switch to Applesoft, and INT to switch
# back to Integer BASIC. As you do this, notice the "R" reading
# indicator on the language card line turning on or off.
# Integer BASIC and old Monitor ROMs
import motherboard rom 1000 $(PREFIX)lib/apple2/system/intbasic/intbasic.ex65
import motherboard rom 2425 $(PREFIX)lib/apple2/system/other/other.ex65
import motherboard rom 2800 $(PREFIX)lib/apple2/system/monitor/apple2/monitor.ex65
# Language card in slot 0
slot 0 language
# Disk ][ controller card in slot 6, with 16-sector ROMs
slot 6 disk
import slot 6 rom 0 $(PREFIX)lib/apple2/dos3x/16sector/controller/disk2.ex65
# Insert DOS 3.3 System Master disk (original version) in drive 1
load slot 6 drive 1 $(PREFIX)lib/apple2/dos3x/16sector/disks/dos330/clean330sysmas.nib

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# Apple ][, loaded
#
# This is an Apple ][ (Integer BASIC and old Monitor), with
# every card provided by the EPPLE ][ Emulator installed.
#
# Since this machine doesn't have the Autostart Monitor, after powering
# it on you'll need to type C600G to boot the DOS 3.3 System Master,
# or C500G to boot the DOS 3.1 System Master.
# Integer BASIC and old Monitor ROMs
import motherboard rom 1000 $(PREFIX)lib/apple2/system/intbasic/intbasic.ex65
import motherboard rom 2425 $(PREFIX)lib/apple2/system/other/other.ex65
import motherboard rom 2800 $(PREFIX)lib/apple2/system/monitor/apple2/monitor.ex65
# Language card in slot 0. When the DOS 3.3 System Master boots,
# it will load Applesoft into the language card.
slot 0 language
# Standard-output "card" in slot 1, so typing
# PR#1 will start sending characters to standard output of the emulator
slot 1 stdout
import slot 1 rom 0 $(PREFIX)lib/epple2/cards/stdout.ex65
# Standard-input "card" in slot 2, so typing
# IN#2 will start reading characters from standard input of the emulator
slot 2 stdin
import slot 2 rom 0 $(PREFIX)lib/epple2/cards/stdin.ex65
# Clock card in slot 4
slot 4 clock
import slot 4 rom 0 $(PREFIX)lib/epple2/cards/clock.ex65
# Disk ][ controller card in slot 5, with 13-sector ROMs.
# This will read (DOS 3.1, 3.2, and 3.2.1) disks, which
# have 13 sectors per track.
slot 5 disk
import slot 5 rom 0 $(PREFIX)lib/apple2/dos3x/13sector/controller/disk2.ex65
# Insert the DOS 3.1 System Master disk into drive 1 of slot 5
load slot 5 drive 1 $(PREFIX)lib/apple2/dos3x/13sector/disks/dos310/clean31sysmas_stock_rawdos.nib
# Disk ][ controller card in slot 6, with 16-sector ROMs.
# This will read (DOS 3.3) disks, which have 16 sectors per track.
slot 6 disk
import slot 6 rom 0 $(PREFIX)lib/apple2/dos3x/16sector/controller/disk2.ex65
# Insert the DOS 3.3 System Master disk (original version) into slot 6
load slot 6 drive 1 $(PREFIX)lib/apple2/dos3x/16sector/disks/dos330/clean330sysmas.nib
# Firmware card with Applesoft and Autostart Monitor.
# DOS will not use this firmware card, because it is not in slot 0.
slot 7 firmware
import slot 7 rombank 0000 $(PREFIX)lib/apple2/system/applesoft/applesoft.ex65
import slot 7 rombank 2800 $(PREFIX)lib/apple2/system/monitor/apple2plus/monitor.ex65

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# Apple ][ plus, bare
#
# This set up is a standard Apple ][ plus, and
# nothing in any slots. It has Applesoft BASIC
# and the Autostart Monitor ROMs.
import motherboard rom 0000 $(PREFIX)lib/apple2/system/applesoft/applesoft.ex65
import motherboard rom 2800 $(PREFIX)lib/apple2/system/monitor/apple2plus/monitor.ex65

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# Apple ][ plus, with language card and DOS 3.3 (original version)
#
# After power-on, it will boot the DOS 3.3 System Master disk.
# Notice it shows "APPLE II PLUS OR ROMCARD" for this machine, and then it
# loads Integer BASIC into the language card.
#
# You can use FP to switch to Applesoft, and INT to switch
# back to Integer BASIC. As you do this, notice the "R" reading
# indicator on the language card line turning on or off.
# Applesoft BASIC and Autostart Monitor ROMs
import motherboard rom 0000 $(PREFIX)lib/apple2/system/applesoft/applesoft.ex65
import motherboard rom 2800 $(PREFIX)lib/apple2/system/monitor/apple2plus/monitor.ex65
# Language card in slot 0
slot 0 language
# Disk ][ controller card in slot 6, with 16-sector ROMs
slot 6 disk
import slot 6 rom 0 $(PREFIX)lib/apple2/dos3x/16sector/controller/disk2.ex65
# Insert DOS 3.3 System Master disk (original version) in drive 1
load slot 6 drive 1 $(PREFIX)lib/apple2/dos3x/16sector/disks/dos330/clean330sysmas.nib

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# Apple ][ plus, loaded
#
# This is an Apple ][ plus (Applesoft BASIC and Autostart Monitor), with
# every card provided by the EPPLE ][ Emulator installed.
#
# This machine has two Disk ][ controller cards; the Autostart Monitor
# searches from slot 7 downwards for a Disk ][ card, so it will boot
# the disk in slot 6, the DOS 3.3 System Master.
# Applesoft BASIC and Autostart Monitor ROMs
import motherboard rom 0000 $(PREFIX)lib/apple2/system/applesoft/applesoft.ex65
import motherboard rom 2800 $(PREFIX)lib/apple2/system/monitor/apple2plus/monitor.ex65
# Language card in slot 0. When the DOS 3.3 System Master boots,
# it will load Integer BASIC into the language card.
slot 0 language
# Standard-output "card" in slot 1, so typing
# PR#1 will start sending characters to standard output of the emulator
slot 1 stdout
import slot 1 rom 0 $(PREFIX)lib/epple2/cards/stdout.ex65
# Standard-input "card" in slot 2, so typing
# IN#2 will start reading characters from standard input of the emulator
slot 2 stdin
import slot 2 rom 0 $(PREFIX)lib/epple2/cards/stdin.ex65
# Clock card in slot 4
slot 4 clock
import slot 4 rom 0 $(PREFIX)lib/epple2/cards/clock.ex65
# Disk ][ controller card in slot 5, with 13-sector ROMs.
# This will read (DOS 3.1, 3.2, and 3.2.1) disks, which
# have 13 sectors per track.
slot 5 disk
import slot 5 rom 0 $(PREFIX)lib/apple2/dos3x/13sector/controller/disk2.ex65
# Insert the DOS 3.1 System Master disk into drive 1 of slot 5
load slot 5 drive 1 $(PREFIX)lib/apple2/dos3x/13sector/disks/dos310/clean31sysmas_stock_rawdos.nib
# Disk ][ controller card in slot 6, with 16-sector ROMs.
# This will read (DOS 3.3) disks, which have 16 sectors per track.
slot 6 disk
import slot 6 rom 0 $(PREFIX)lib/apple2/dos3x/16sector/controller/disk2.ex65
# Insert the DOS 3.3 System Master disk (original version) into slot 6
load slot 6 drive 1 $(PREFIX)lib/apple2/dos3x/16sector/disks/dos330/clean330sysmas.nib
# Firmware card with Integer BASIC and the old Monitor.
# DOS will not use this firmware card, because it is not in slot 0.
slot 7 firmware
import slot 7 rombank 1000 $(PREFIX)lib/apple2/system/intbasic/intbasic.ex65
import slot 7 rombank 2425 $(PREFIX)lib/apple2/system/other/other.ex65
import slot 7 rombank 2800 $(PREFIX)lib/apple2/system/monitor/apple2/monitor.ex65

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# epple2.conf
# Copyright 2009, by Chris Mosher <chris@mosher.mine.nu>
# GPLv3
#
# Configuration file for the Epple 2 emulator.
#
# This sample file is the default setup for the emulator.
# It does not load any proprietary ROMs, only GPLv3 ROMs
# written by the author of the emulator.
#
# Demo system ROM for the emulator. This is only to allow the
# emulator to do something useful when there are no real Apple ROM
# images provided.
#
import motherboard rom 2C00 $(PREFIX)lib/epple2/system/epple2sys.ex65
# These are how to load the real (proprietary) Apple ROMs.
# There ROMs are not distributed with the Epple 2 emulator.
# These two lines are for an Apple ][ plus:
#import motherboard rom 0000 $(PREFIX)lib/apple2/system/applesoft/applesoft.ex65
#import motherboard rom 2800 $(PREFIX)lib/apple2/system/monitor/apple2plus/monitor.ex65
# or instead, use these three lines are for an Apple ][:
#import motherboard rom 1000 $(PREFIX)lib/apple2/system/intbasic/intbasic.ex65
#import motherboard rom 2425 $(PREFIX)lib/apple2/system/other/other.ex65
#import motherboard rom 2800 $(PREFIX)lib/apple2/system/monitor/apple2/monitor.ex65
slot 0 language
slot 1 stdout
import slot 1 rom 0 $(PREFIX)lib/epple2/cards/stdout.ex65
slot 2 stdin
import slot 2 rom 0 $(PREFIX)lib/epple2/cards/stdin.ex65
slot 4 clock
import slot 4 rom 0 $(PREFIX)lib/epple2/cards/clock.ex65
#slot 5 disk
#import slot 5 rom 0 $(PREFIX)lib/apple2/dos3x/13sector/controller/disk2.ex65
#load slot 5 drive 1 $(PREFIX)lib/apple2/dos3x/13sector/disks/dos310/clean31sysmas_stock_rawdos.nib
#slot 6 disk
#import slot 6 rom 0 $(PREFIX)lib/apple2/dos3x/16sector/controller/disk2.ex65
#load slot 6 drive 1 $(PREFIX)lib/apple2/dos3x/16sector/disks/dos330/clean330sysmas.nib
#slot 7 firmware
#import slot 7 rombank 1000 $(PREFIX)lib/apple2/system/intbasic/intbasic.ex65
#import slot 7 rombank 2425 $(PREFIX)lib/apple2/system/other/other.ex65
#import slot 7 rombank 2800 $(PREFIX)lib/apple2/system/monitor/apple2/monitor.ex65
#revision 0
revision 1

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# Apple ][ with revision zero motherboard
#
# This sets up a revision zero motherboard, and loads
# Integer BASIC and the old Monitor ROMs. This set up
# has nothing in any slots; it's a minimalist Apple ][.
#
# With a revision zero motherboard, powering on the machine
# doesn't start it running; you need to press RESET (Break)
# to get it actually running.
# Load Integer BASIC and old Monitor ROMs
import motherboard rom 1000 $(PREFIX)lib/apple2/system/intbasic/intbasic.ex65
import motherboard rom 2425 $(PREFIX)lib/apple2/system/other/other.ex65
import motherboard rom 2800 $(PREFIX)lib/apple2/system/monitor/apple2/monitor.ex65
# Use an original, revision zero, motherboard
revision 0

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# Process this file with autoconf to produce a configure script.
AC_INIT(src/apple2.cpp)
AC_PREREQ(2.59)
AC_CONFIG_SRCDIR([config.h.in])
AM_CONFIG_HEADER(config.h)
AM_INIT_AUTOMAKE(epple2, 1.0)
# Checks for programs.
AC_PROG_CXX
AC_LANG_CPLUSPLUS
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_RANLIB
AM_PROG_CC_C_O
# Checks for libraries.
AC_CHECK_LIB([SDL],[SDL_Init],,[AC_MSG_ERROR([cannot find libsdl])])
AC_CHECK_LIB([X11],[XOpenDisplay],,[AC_MSG_ERROR([cannot find X11])])
# Checks for header files.
AC_HEADER_STDBOOL
AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_CHECK_HEADERS([windows.h])
AC_CHECK_HEADER([windows.h],[WINDOWS=true].[WINDOWS=])
AM_CONDITIONAL([HAVE_WINDOWS],test "$WINDOWS")
# Checks for library functions.
AC_HEADER_STDC
AC_TYPE_SIGNAL
AC_CHECK_FUNCS([memset sqrt])
# Checks for typedefs, structures, and compiler characteristics.
AC_CONFIG_FILES([Makefile src/Makefile conf/Makefile installer/Makefile])
AC_OUTPUT

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Summary: EPPLE ][, The Emulated Apple ][
Name: epple2
Version: 1.0
Release: 1
Source: %{name}-%{version}.tar.gz
License: GPL
Group: System/Emulators/Other
%description
EPPLE ][ is an emulator of Apple ][ and Apple ][ plus computers.
%prep
%setup -q
%build
cd ../../VPATH
if [ -x ./config.status ]
then
./config.status
else
../BUILD/%{name}-%{version}/configure --prefix=%{_prefix} --sysconfdir=%{_sysconfdir}
fi
make
%install
cd ../../VPATH
make install DESTDIR=%{buildroot}
%files
%{_bindir}/%{name}
%{_sysconfdir}/%{name}

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EXTRA_DIST = epple2.wxs
if HAVE_WINDOWS
SUFFIXES = .wxs .wixobj .msi
all: epple2.msi
epple2.msi: epple2.wixobj ../src/epple2.exe
strip -o epple2.exe ../src/epple2.exe
light $< -out $@
cp $@ $(basename $@)-$(VERSION)$(suffix $@)
epple2.wixobj: epple2.wxs
candle $< -out $@ -dSDLDIR=/bin -dMINGWMDIR=/mingw/bin
endif

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<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2003/01/wi">
<Product Name="EPPLE ][" Id="d603c69f-4116-4b8e-910f-44f488a772a4" Language="1033" Codepage="1252" Version="1.0.0" Manufacturer="Chris Mosher">
<Package Id="0ca046fe-0adb-4df3-9fab-048baa55b165" Description="Emulated Apple ][" InstallerVersion="100" Languages="1033" Compressed="yes" />
<Media Id="1" Cabinet="Epple2.cab" EmbedCab="yes" DiskPrompt="Epple2.cab" />
<Property Id="DiskPrompt" Value="Epple ][ Installation" />
<Directory Id="TARGETDIR" Name="SourceDir">
<Directory Id="ProgramFilesFolder" Name="PFiles">
<Directory Id="INSTALLDIR" Name="Epple2">
<Directory Id="bindot" Name=".">
<Directory Id="bin" Name="bin">
<Component Id="MainExecutable" Guid="d3f60e2b-92e2-4a41-b83a-a38591c2e6c3">
<File Id="EPPLE2_EXE" Name="epple2.exe" DiskId="1" Source="epple2.exe" Vital="yes">
<Shortcut Id="startmenuEpple2" Directory="ProgramMenuDir" Name="Epple2" WorkingDirectory="INSTALLDIR" />
<Shortcut Id="desktopEpple2" Directory="DesktopFolder" Name="Epple2" WorkingDirectory="INSTALLDIR" />
</File>
<RemoveFolder Id="ProgramMenuDir" On="uninstall" />
</Component>
<Component Id="SDL" Guid="d8e283c0-9af6-4275-8d66-45ca2a0e51ce">
<File Id="SDLDLL" Name="sdl.dll" DiskId="1" Source="$(var.SDLDIR)\SDL.dll" />
</Component>
<Component Id="MINGWM" Guid="d8e283c0-9af6-4275-8d66-45ca2a0e51ce">
<File Id="MINGWMDLL" Name="mingwm10.dll" DiskId="1" Source="$(var.MINGWMDIR)\mingwm10.dll" />
</Component>
</Directory>
</Directory>
<Directory Id="etcdot" Name=".">
<Directory Id="etc" Name="etc">
<Directory Id="etc_epple2" Name="epple2">
<Component Id="ConfigFiles" Guid="73057afd-e28b-48b1-b428-6e2bf029b74d">
<File Id="Config" Name="epple2.cfg" LongName="epple2.conf" DiskId="1" Source="..\conf\epple2.conf" Vital="yes" />
<File Id="Config_rev0bare" Name="epple2_1.cfg" LongName="epple2.rev0bare.conf" DiskId="1" Source="..\conf\epple2.rev0bare.conf" Vital="yes" />
<File Id="Config_a2bare" Name="epple2_2.cfg" LongName="epple2.a2bare.conf" DiskId="1" Source="..\conf\epple2.a2bare.conf" Vital="yes" />
<File Id="Config_a2dos31" Name="epple2_3.cfg" LongName="epple2.a2dos31.conf" DiskId="1" Source="..\conf\epple2.a2dos31.conf" Vital="yes" />
<File Id="Config_a2dos33" Name="epple2_4.cfg" LongName="epple2.a2dos33.conf" DiskId="1" Source="..\conf\epple2.a2dos33.conf" Vital="yes" />
<File Id="Config_a2loaded" Name="epple2_5.cfg" LongName="epple2.a2loaded.conf" DiskId="1" Source="..\conf\epple2.a2loaded.conf" Vital="yes" />
</Component>
</Directory>
</Directory>
</Directory>
</Directory>
</Directory>
<Directory Id="ProgramMenuFolder" Name="PMenu" LongName="Programs">
<Directory Id="ProgramMenuDir" Name="Epple2" />
</Directory>
<Directory Id="DesktopFolder" Name="Desktop" />
</Directory>
<Feature Id="Complete" Level="1">
<ComponentRef Id="MainExecutable" />
<ComponentRef Id="ConfigFiles" />
<ComponentRef Id="SDL" />
<ComponentRef Id="MINGWM" />
</Feature>
</Product>
</Wix>

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METASOURCES=AUTO
bin_PROGRAMS=epple2
AM_CPPFLAGS=$(all_includes)
epple2_LDFLAGS=$(all_libraries)
epple2_CPPFLAGS = $(AM_CPPFLAGS) -DETCDIR=\"$(sysconfdir)\"
epple2_SOURCES = a2colorsobserved.cpp addressbus.cpp analogtv.cpp apple2.cpp \
applentsc.cpp card.cpp cassette.cpp clipboardhandler.cpp clockcard.cpp \
configep2.cpp cpu.cpp diskbytes.cpp diskcontroller.cpp drive.cpp \
emptyslot.cpp emulator.cpp firmwarecard.cpp gui.cpp hypermode.cpp \
keyboard.cpp keyboardbuffermode.cpp languagecard.cpp lowpass_1_5_mhz.cpp \
lowpass_3_58_mhz.cpp main.cpp memory.cpp paddlebuttonstates.cpp \
paddles.cpp picturegenerator.cpp powerupreset.cpp raminitializer.cpp \
screenimage.cpp slots.cpp speakerclicker.cpp standardin.cpp \
standardinproducer.cpp standardout.cpp steppermotor.cpp textcharacters.cpp \
timable.cpp video.cpp videoaddressing.cpp videomode.cpp \
videostaticgenerator.cpp SDL_win32_main.c
noinst_HEADERS = a2colorsobserved.h addressbus.h analogtv.h apple2.h applentsc.h \
card.h cassette.h clipboardhandler.h clockcard.h configep2.h cpu.h diskbytes.h \
diskcontroller.h drive.h e2const.h emptyslot.h emulator.h firmwarecard.h font3x5.h gui.h \
hypermode.h keyboardbuffermode.h keyboard.h languagecard.h lowpass_1_5_mhz.h \
lowpass_3_58_mhz.h memory.h paddlebuttonstates.h paddles.h picturegenerator.h \
powerupreset.h raminitializer.h screenimage.h slots.h speakerclicker.h \
standardin.h standardinproducer.h standardout.h steppermotor.h \
textcharacterimages.h textcharacters.h timable.h util.h \
videoaddressing.h video.h videomode.h videostaticgenerator.h

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/*
SDL_main.c, placed in the public domain by Sam Lantinga 4/13/98
The WinMain function -- calls your program's main() function
*/
#include "config.h"
#ifdef HAVE_WINDOWS_H
#include <stdio.h>
#include <stdlib.h>
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
// Chris Mosher added this:
#define NO_STDIO_REDIRECT
#ifdef _WIN32_WCE
# define DIR_SEPERATOR TEXT("\\")
# undef _getcwd
# define _getcwd(str,len) wcscpy(str,TEXT(""))
# define setbuf(f,b)
# define setvbuf(w,x,y,z)
# define fopen _wfopen
# define freopen _wfreopen
# define remove(x) DeleteFile(x)
#else
# define DIR_SEPERATOR TEXT("/")
# include <direct.h>
#endif
/* Include the SDL main definition header */
#include "SDL/SDL.h"
#include "SDL/SDL_main.h"
#ifdef main
# ifndef _WIN32_WCE_EMULATION
# undef main
# endif /* _WIN32_WCE_EMULATION */
#endif /* main */
/* The standard output files */
#define STDOUT_FILE TEXT("stdout.txt")
#define STDERR_FILE TEXT("stderr.txt")
#ifndef NO_STDIO_REDIRECT
# ifdef _WIN32_WCE
static wchar_t stdoutPath[MAX_PATH];
static wchar_t stderrPath[MAX_PATH];
# else
static char stdoutPath[MAX_PATH];
static char stderrPath[MAX_PATH];
# endif
#endif
#if defined(_WIN32_WCE) && _WIN32_WCE < 300
/* seems to be undefined in Win CE although in online help */
#define isspace(a) (((CHAR)a == ' ') || ((CHAR)a == '\t'))
#endif /* _WIN32_WCE < 300 */
static void UnEscapeQuotes( char *arg )
{
char *last = NULL;
while( *arg ) {
if( *arg == '"' && *last == '\\' ) {
char *c_curr = arg;
char *c_last = last;
while( *c_curr ) {
*c_last = *c_curr;
c_last = c_curr;
c_curr++;
}
*c_last = '\0';
}
last = arg;
arg++;
}
}
/* Parse a command line buffer into arguments */
static int ParseCommandLine(char *cmdline, char **argv)
{
char *bufp;
char *lastp = NULL;
int argc, last_argc;
argc = last_argc = 0;
for ( bufp = cmdline; *bufp; ) {
/* Skip leading whitespace */
while ( isspace(*bufp) ) {
++bufp;
}
/* Skip over argument */
if ( *bufp == '"' ) {
++bufp;
if ( *bufp ) {
if ( argv ) {
argv[argc] = bufp;
}
++argc;
}
/* Skip over word */
while ( *bufp && ( *bufp != '"' || *lastp == '\\' ) ) {
lastp = bufp;
++bufp;
}
} else {
if ( *bufp ) {
if ( argv ) {
argv[argc] = bufp;
}
++argc;
}
/* Skip over word */
while ( *bufp && ! isspace(*bufp) ) {
++bufp;
}
}
if ( *bufp ) {
if ( argv ) {
*bufp = '\0';
}
++bufp;
}
/* Strip out \ from \" sequences */
if( argv && last_argc != argc ) {
UnEscapeQuotes( argv[last_argc] );
}
last_argc = argc;
}
if ( argv ) {
argv[argc] = NULL;
}
return(argc);
}
/* Show an error message */
static void ShowError(const char *title, const char *message)
{
/* If USE_MESSAGEBOX is defined, you need to link with user32.lib */
#ifdef USE_MESSAGEBOX
MessageBox(NULL, message, title, MB_ICONEXCLAMATION|MB_OK);
#else
fprintf(stderr, "%s: %s\n", title, message);
#endif
}
/* Pop up an out of memory message, returns to Windows */
static BOOL OutOfMemory(void)
{
ShowError("Fatal Error", "Out of memory - aborting");
return FALSE;
}
/* SDL_Quit() shouldn't be used with atexit() directly because
calling conventions may differ... */
static void cleanup(void)
{
SDL_Quit();
}
/* Remove the output files if there was no output written */
static void cleanup_output(void)
{
#ifndef NO_STDIO_REDIRECT
FILE *file;
int empty;
#endif
/* Flush the output in case anything is queued */
fclose(stdout);
fclose(stderr);
#ifndef NO_STDIO_REDIRECT
/* See if the files have any output in them */
if ( stdoutPath[0] ) {
file = fopen(stdoutPath, TEXT("rb"));
if ( file ) {
empty = (fgetc(file) == EOF) ? 1 : 0;
fclose(file);
if ( empty ) {
remove(stdoutPath);
}
}
}
if ( stderrPath[0] ) {
file = fopen(stderrPath, TEXT("rb"));
if ( file ) {
empty = (fgetc(file) == EOF) ? 1 : 0;
fclose(file);
if ( empty ) {
remove(stderrPath);
}
}
}
#endif
}
#if defined(_MSC_VER) && !defined(_WIN32_WCE)
/* The VC++ compiler needs main defined */
#define console_main main
#endif
/* This is where execution begins [console apps] */
int console_main(int argc, char *argv[])
{
size_t n;
char *bufp, *appname;
int status;
/* Get the class name from argv[0] */
appname = argv[0];
if ( (bufp=SDL_strrchr(argv[0], '\\')) != NULL ) {
appname = bufp+1;
} else
if ( (bufp=SDL_strrchr(argv[0], '/')) != NULL ) {
appname = bufp+1;
}
if ( (bufp=SDL_strrchr(appname, '.')) == NULL )
n = SDL_strlen(appname);
else
n = (bufp-appname);
bufp = SDL_stack_alloc(char, n+1);
if ( bufp == NULL ) {
return OutOfMemory();
}
SDL_strlcpy(bufp, appname, n+1);
appname = bufp;
/* Load SDL dynamic link library */
if ( SDL_Init(SDL_INIT_NOPARACHUTE) < 0 ) {
ShowError("WinMain() error", SDL_GetError());
return(FALSE);
}
atexit(cleanup_output);
atexit(cleanup);
/* Sam:
We still need to pass in the application handle so that
DirectInput will initialize properly when SDL_RegisterApp()
is called later in the video initialization.
*/
SDL_SetModuleHandle(GetModuleHandle(NULL));
/* Run the application main() code */
status = SDL_main(argc, argv);
/* Exit cleanly, calling atexit() functions */
exit(status);
/* Hush little compiler, don't you cry... */
return 0;
}
/* This is where execution begins [windowed apps] */
#ifdef _WIN32_WCE
int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPWSTR szCmdLine, int sw)
#else
int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw)
#endif
{
HINSTANCE handle;
char **argv;
int argc;
char *cmdline;
#ifdef _WIN32_WCE
wchar_t *bufp;
int nLen;
#else
char *bufp;
size_t nLen;
#endif
#ifndef NO_STDIO_REDIRECT
DWORD pathlen;
#ifdef _WIN32_WCE
wchar_t path[MAX_PATH];
#else
char path[MAX_PATH];
#endif
FILE *newfp;
#endif
/* Start up DDHELP.EXE before opening any files, so DDHELP doesn't
keep them open. This is a hack.. hopefully it will be fixed
someday. DDHELP.EXE starts up the first time DDRAW.DLL is loaded.
*/
handle = LoadLibrary(TEXT("DDRAW.DLL"));
if ( handle != NULL ) {
FreeLibrary(handle);
}
#ifndef NO_STDIO_REDIRECT
pathlen = GetModuleFileName(NULL, path, SDL_arraysize(path));
while ( pathlen > 0 && path[pathlen] != '\\' ) {
--pathlen;
}
path[pathlen] = '\0';
#ifdef _WIN32_WCE
wcsncpy( stdoutPath, path, SDL_arraysize(stdoutPath) );
wcsncat( stdoutPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) );
#else
SDL_strlcpy( stdoutPath, path, SDL_arraysize(stdoutPath) );
SDL_strlcat( stdoutPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) );
#endif
/* Redirect standard input and standard output */
newfp = freopen(stdoutPath, TEXT("w"), stdout);
#ifndef _WIN32_WCE
if ( newfp == NULL ) { /* This happens on NT */
#if !defined(stdout)
stdout = fopen(stdoutPath, TEXT("w"));
#else
newfp = fopen(stdoutPath, TEXT("w"));
if ( newfp ) {
*stdout = *newfp;
}
#endif
}
#endif /* _WIN32_WCE */
#ifdef _WIN32_WCE
wcsncpy( stderrPath, path, SDL_arraysize(stdoutPath) );
wcsncat( stderrPath, DIR_SEPERATOR STDOUT_FILE, SDL_arraysize(stdoutPath) );
#else
SDL_strlcpy( stderrPath, path, SDL_arraysize(stderrPath) );
SDL_strlcat( stderrPath, DIR_SEPERATOR STDERR_FILE, SDL_arraysize(stderrPath) );
#endif
newfp = freopen(stderrPath, TEXT("w"), stderr);
#ifndef _WIN32_WCE
if ( newfp == NULL ) { /* This happens on NT */
#if !defined(stderr)
stderr = fopen(stderrPath, TEXT("w"));
#else
newfp = fopen(stderrPath, TEXT("w"));
if ( newfp ) {
*stderr = *newfp;
}
#endif
}
#endif /* _WIN32_WCE */
setvbuf(stdout, NULL, _IOLBF, BUFSIZ); /* Line buffered */
setbuf(stderr, NULL); /* No buffering */
#endif /* !NO_STDIO_REDIRECT */
#ifdef _WIN32_WCE
nLen = wcslen(szCmdLine)+128+1;
bufp = SDL_stack_alloc(wchar_t, nLen*2);
wcscpy (bufp, TEXT("\""));
GetModuleFileName(NULL, bufp+1, 128-3);
wcscpy (bufp+wcslen(bufp), TEXT("\" "));
wcsncpy(bufp+wcslen(bufp), szCmdLine,nLen-wcslen(bufp));
nLen = wcslen(bufp)+1;
cmdline = SDL_stack_alloc(char, nLen);
if ( cmdline == NULL ) {
return OutOfMemory();
}
WideCharToMultiByte(CP_ACP, 0, bufp, -1, cmdline, nLen, NULL, NULL);
#else
/* Grab the command line */
bufp = GetCommandLine();
nLen = SDL_strlen(bufp)+1;
cmdline = SDL_stack_alloc(char, nLen);
if ( cmdline == NULL ) {
return OutOfMemory();
}
SDL_strlcpy(cmdline, bufp, nLen);
#endif
/* Parse it into argv and argc */
argc = ParseCommandLine(cmdline, NULL);
argv = SDL_stack_alloc(char*, argc+1);
if ( argv == NULL ) {
return OutOfMemory();
}
ParseCommandLine(cmdline, argv);
/* Run the main program (after a little SDL initialization) */
console_main(argc, argv);
/* Hush little compiler, don't you cry... */
return 0;
}
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "a2colorsobserved.h"
static unsigned char tobyt(float x)
{
x *= 256.0f;
x += 0.0001f;
int xi = (int)x;
if (xi > 255)
xi = 255;
return (unsigned char)xi;
}
// 0 <= h < 360 degrees; 0 <= s,v <= 1
static int HSVtoRGB(const int h, const float s, const float v)
{
const float f = (h % 60) / 60.0;
float r, g, b;
switch (h / 60)
{
case 0:
r = v;
g = v * (1 - s * (1 - f));
b = v * (1 - s);
break;
case 1:
r = v * (1 - s * f);
g = v;
b = v * (1 - s);
break;
case 2:
r = v * (1 - s);
g = v;
b = v * (1 - s * (1 - f));
break;
case 3:
r = v * (1 - s);
g = v * (1 - s * f);
b = v;
break;
case 4:
r = v * (1 - s * (1 - f));
g = v * (1 - s);
b = v;
break;
case 5:
r = v;
g = v * (1 - s);
b = v * (1 - s * f);
break;
}
return (tobyt(r) << 16) | (tobyt(g) << 8) | (tobyt(b));
}
A2ColorsObserved::A2ColorsObserved():
COLOR(0x10)
{
// const unsigned int clr[] = { 0x1, 0xB, 0x3, 0x2, 0x7, 0x6, 0x4, 0xE, 0xC, 0x8, 0xD, 0x9, 0x5, 0xA, 0xF, 0x0 };
const unsigned int map[] = { 0xF, 0x0, 0x3, 0x2, 0x6, 0xC, 0x5, 0x4, 0x9, 0xB, 0xD, 0x1, 0x8, 0xA, 0x7, 0xE };
const unsigned int hue[] = { 342, 342, 277, 233, 233, 213, 160, 160, 75, 33, 52, 24, 0, 0, 0, 0 };
const unsigned int sat[] = { 100, 50, 75, 100, 50, 100, 100, 100, 100, 100, 100, 100, 0, 0, 0, 0 };
const unsigned int val[] = { 67, 100, 100, 75, 100, 100, 33, 100, 75, 50, 100, 100, 50, 50, 100, 0 };
for (unsigned int i(0); i < COLOR.size(); ++i)
{
COLOR[i] = HSVtoRGB(hue[map[i]],sat[map[i]]/100.0f,val[map[i]]/100.0f);
}
}
A2ColorsObserved::~A2ColorsObserved()
{
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef A2COLORSOBSERVED_H
#define A2COLORSOBSERVED_H
#include <vector>
class A2ColorsObserved
{
private:
std::vector<unsigned int> COLOR;
public:
A2ColorsObserved();
~A2ColorsObserved();
const std::vector<unsigned int>& c() { return this->COLOR; }
enum
{
BLACK,
DARK_MAGENTA,
DARK_BLUE,
HIRES_VIOLET,
DARK_BLUE_GREEN,
GREY,
HIRES_BLUE,
LIGHT_BLUE,
DARK_BROWN,
HIRES_ORANGE,
GREY_ALTERNATE,
LIGHT_MAGENTA,
HIRES_GREEN,
LIGHT_BROWN,
LIGHT_BLUE_GREEN,
WHITE,
};
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "addressbus.h"
#include "memory.h"
#include "keyboard.h"
#include "videomode.h"
#include "paddles.h"
#include "paddlebuttonstates.h"
#include "speakerclicker.h"
#include "cassette.h"
#include "slots.h"
AddressBus::AddressBus(Memory& ram, Memory& rom, Keyboard& kbd, VideoMode& vid, Paddles& paddles, PaddleButtonStates& paddleButtonStates, SpeakerClicker& speaker, Cassette& cassette, Slots& slts):
ram(ram), rom(rom), kbd(kbd), vid(vid), paddles(paddles), paddleButtonStates(paddleButtonStates), speaker(speaker), cassette(cassette), slts(slts)
{
}
AddressBus::~AddressBus()
{
}
unsigned char AddressBus::read(const unsigned short address)
{
if ((address >> 14 == 3)) // >= $C000
{
if ((address >> 12) == 0xC)
{
// 11007sssxxxxxxxx
const bool seventh = address & 0x0800;
const int slot = (address >> 8) & 7;
if (seventh)
{
this->data = this->slts.readSeventhRom(address & 0x07FF, this->data);
}
else if (slot == 0)
{
this->data = readSwitch(address & 0x00FF);
}
else
{
this->data = this->slts.readRom(slot,address & 0x00FF, this->data);
}
}
else
{
this->data = this->slts.ioBankRom(address - 0xD000,this->data,false);
if (!this->slts.inhibitMotherboardRom())
{
this->data = this->rom.read(address - 0xD000);
}
}
}
else // < $C000
{
this->data = this->ram.read(address);
}
return this->data;
}
void AddressBus::write(const unsigned short address, const unsigned char d)
{
this->data = d;
if ((address >> 14 == 3)) // >= $C000
{
if ((address >> 12) == 0xC)
{
// 11007sssxxxxxxxx
const bool seventh = address & 0x0800;
const int slot = (address >> 8) & 7;
if (!seventh && slot == 0)
{
writeSwitch(address & 0x00FF);
}
}
else
{
this->slts.ioBankRom(address - 0xD000,this->data,true);
}
}
else // < $C000
{
this->ram.write(address,this->data);
}
}
unsigned char AddressBus::readSwitch(unsigned short address)
{
if (address < 0x80)
{
const int islot = (address >> 4) & 0xF;
const int iswch = (address & 0xF);
if (islot == 0x0)
{
this->data = this->kbd.get();
}
else if (islot == 0x1)
{
this->kbd.clear();
}
else if (islot == 0x2)
{
this->cassette.output();
}
else if (islot == 0x3)
{
this->speaker.click();
}
else if (islot == 0x4)
{
// ignore utility strobe
}
else if (islot == 0x5)
{
if (iswch < 0x8)
{
this->data = this->vid.io(address,this->data);
}
else
{
// ignore annunciator outputs
}
}
else if (islot == 0x6)
{
int sw2 = iswch & 0x7;
if (sw2 == 0)
{
setD7(this->cassette.input());
}
else if (sw2 < 4)
{
setD7(this->paddleButtonStates.isDown(sw2-1));
}
else
{
sw2 &= 3;
setD7(!this->paddles.isTimedOut(sw2));
}
}
else if (islot == 0x7)
{
this->paddles.startTimers();
setD7(true);
}
}
else
{
// slot I/O switches
address &= 0x7F;
const int islot = (address >> 4) & 0xF;
const int iswch = (address & 0xF);
this->data = this->slts.io(islot,iswch,this->data,false);
}
return this->data;
}
void AddressBus::setD7(const bool set)
{
if (set)
{
this->data |= 0x80;
}
else
{
this->data &= 0x7F;
}
}
void AddressBus::writeSwitch(unsigned short address)
{
if (address < 0x80)
{
const int islot = (address >> 4) & 0xF;
const int iswch = (address & 0xF);
if (islot == 0x1)
{
this->kbd.clear();
}
else if (islot == 0x5)
{
if (iswch < 0x8)
this->vid.io(address,this->data);
}
// ignore all other switch writes
}
else
{
// slot I/O switches
address &= 0x7F;
const int islot = (address >> 4) & 0xF;
const int iswch = (address & 0xF);
this->slts.io(islot,iswch,this->data,true);
}
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ADDRESSBUS_H
#define ADDRESSBUS_H
class Memory;
class Keyboard;
class VideoMode;
class Paddles;
class PaddleButtonStates;
class SpeakerClicker;
class Cassette;
class Slots;
class AddressBus
{
private:
Memory& ram;
Memory& rom;
Keyboard& kbd;
VideoMode& vid;
Paddles& paddles;
PaddleButtonStates& paddleButtonStates;
SpeakerClicker& speaker;
Cassette& cassette;
Slots& slts;
unsigned char data; // this emulates the (floating) data bus
public:
AddressBus(Memory& ram, Memory& rom, Keyboard& kbd, VideoMode& vid, Paddles& paddles, PaddleButtonStates& paddleButtonStates, SpeakerClicker& speaker, Cassette& cassette, Slots& slts);
~AddressBus();
unsigned char read(const unsigned short address);
void write(const unsigned short address, const unsigned char d);
unsigned char readSwitch(unsigned short address);
void setD7(const bool set);
void writeSwitch(unsigned short address);
enum { MOTHERBOARD_RAM_BAS = 0x00000 } ;
enum { MOTHERBOARD_RAM_LIM = 0x0C000 } ;
enum { MOTHERBOARD_RAM_SIZ = MOTHERBOARD_RAM_LIM-MOTHERBOARD_RAM_BAS };
enum { MOTHERBOARD_ROM_BAS = 0x0D000 } ;
enum { MOTHERBOARD_ROM_LIM = 0x10000 } ;
enum { MOTHERBOARD_ROM_SIZ = MOTHERBOARD_ROM_LIM-MOTHERBOARD_ROM_BAS } ;
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
This class was highly inspired by Trevor Blackwell's Analog TV
module ("hack") of the XScreenSaver collection, therefore, portions
Copyright (C) 2003, 2004, by Trevor Blackwell <tlb@tlb.org>
(Thanks, Trevor!)
For this class, I removed the "interference" type processing, and
just took the raw color processing functionality. See the drawTVOld
method definition in this file for the analog TV processing.
I also added processing for the other ("new") TV, and various monitors.
*/
#include "analogtv.h"
#include "screenimage.h"
#include "applentsc.h"
#include "lowpass_3_58_mhz.h"
#include "lowpass_1_5_mhz.h"
#include <map>
#include <cmath>
#include <ctime>
#include <cstdlib>
AnalogTV::AnalogTV(ScreenImage& image):
image(image),
on(false),
noise(false),
bleed_down(false)
{
hirescolor.push_back(colors.c()[A2ColorsObserved::HIRES_GREEN]);
hirescolor.push_back(colors.c()[A2ColorsObserved::HIRES_ORANGE]);
hirescolor.push_back(colors.c()[A2ColorsObserved::HIRES_VIOLET]);
hirescolor.push_back(colors.c()[A2ColorsObserved::HIRES_BLUE]);
loreslightcolor.push_back(colors.c()[A2ColorsObserved::LIGHT_BROWN]);
loreslightcolor.push_back(colors.c()[A2ColorsObserved::LIGHT_MAGENTA]);
loreslightcolor.push_back(colors.c()[A2ColorsObserved::LIGHT_BLUE]);
loreslightcolor.push_back(colors.c()[A2ColorsObserved::LIGHT_BLUE_GREEN]);
loresdarkcolor.push_back(colors.c()[A2ColorsObserved::DARK_BLUE_GREEN]);
loresdarkcolor.push_back(colors.c()[A2ColorsObserved::DARK_BROWN]);
loresdarkcolor.push_back(colors.c()[A2ColorsObserved::DARK_MAGENTA]);
loresdarkcolor.push_back(colors.c()[A2ColorsObserved::DARK_BLUE]);
}
AnalogTV::~AnalogTV()
{
}
void AnalogTV::powerOn(bool b)
{
this->on = b;
this->image.notifyObservers();
}
void AnalogTV::setType(DisplayType type)
{
this->type = type;
}
void AnalogTV::cycleType()
{
this->type = (DisplayType)((((int)this->type)+1)%NUM_DISPLAY_TYPES);
}
void AnalogTV::toggleBleedDown()
{
this->bleed_down = !this->bleed_down;
this->image.blank();
this->image.notifyObservers();
}
// void dump()
// {
// const int[] yiq = new int[AppleNTSC::H];
// for (int row = 0; row < 192; ++row)
// {
// const CB cb = get_cb(row);
// const IQ iq_factor = get_iq_factor(cb);
// ntsc_to_yiq(row*AppleNTSC::H+350,AppleNTSC::H-2-350,iq_factor,yiq);
// for (int col = 350; col < AppleNTSC::H-2; ++col)
// {
// const int sig = this->signal[row*AppleNTSC::H+col];
// System.out.printf(" %+04d",sig);
// const int yiqv = yiq[col-350];
// int y = (yiqv&0xFF)-IQINTOFF;
// int i = ((yiqv>>8)&0xFF)-IQINTOFF;
// int q = ((yiqv>>16)&0xFF)-IQINTOFF;
// System.out.printf("(%+04d,%+04d,%+04d)",y,i,q);
//
// const int rgb = yiq2rgb(yiqv);
// const int r = (rgb >> 16) & 0xff;
// const int g = (rgb >> 8) & 0xff;
// const int b = (rgb ) & 0xff;
// System.out.printf("[%06X:%03d,%03d,%03d]",rgb,r,g,b);
// }
// System.out.println();
// }
//
// }
class IQ
{
public:
double iq[4];
IQ()
{
for (int i = 0; i < 4; ++i)
iq[i] = 0;
}
IQ(double aiq[])
{
for (int i = 0; i < 4; ++i)
iq[i] = aiq[i];
}
double get(int i) const { return this->iq[i]; }
};
const IQ& AnalogTV::BLACK_AND_WHITE = IQ();
static const int CB_EXTRA(32);
class CB
{
public:
std::vector<int> cb;
CB(const int acb[]):
cb(AppleNTSC::CB_END-AppleNTSC::CB_START-CB_EXTRA)
{
for (std::vector<int>::size_type i(0); i < this->cb.size(); ++i)
{
this->cb[i] = acb[i];
}
}
int get(const int i) const { return this->cb[i]; }
int length() const { return this->cb.size(); }
void getPhase(double phase[]) const
{
{
for (int i = 0; i < 4; ++i)
{
phase[i & 3] = 0;
}
}
{
for (int i = 0; i < length(); ++i)
{
phase[i & 3] += this->cb[i];
}
}
double tot = 0;
{
for (int i = 0; i < 4; ++i)
{
tot += phase[i] * phase[i];
}
}
const double tsrt = sqrt(tot);
if (tsrt < .0001)
{
return;
}
for (int i = 0; i < 4; i++)
{
phase[i] /= tsrt;
}
}
bool isColor() const
{
int tot = 0;
for (int i = 0; i < length(); ++i)
{
const int icb = this->cb[i];
if (icb < 0)
tot += -icb;
else
tot += icb;
}
return 220 < tot && tot < 260;
}
bool operator<(const CB& that) const
{
return this->cb < that.cb;
}
};
void AnalogTV::drawCurrent()
{
if (this->on)
{
switch (this->type)
{
case MONITOR_COLOR: drawMonitorColor(); break;
case MONITOR_WHITE: drawMonitorWhite(); break;
case MONITOR_GREEN: drawMonitorGreen(); break;
case MONITOR_ORANGE: drawMonitorOrange(); break;
case TV_OLD_COLOR: drawTVOld(); break;
case TV_OLD_BW: drawTVOld(); break;
case TV_NEW_COLOR: drawTVNew(); break;
case TV_NEW_BW: drawTVNew(); break;
}
}
else
{
drawBlank();
}
this->image.notifyObservers();
}
static const int D_IP(AppleNTSC::H-2-350);
void AnalogTV::drawMonitorColor()
{
unsigned int *rgb = new unsigned int[AppleNTSC::H];
int ip = 0;
for (int row = 0; row < 192; ++row)
{
const CB cb = get_cb(row);
const bool removeColor = (this->type == TV_NEW_BW || !cb.isColor());
ntsc_to_rgb_monitor(row*AppleNTSC::H+350,AppleNTSC::H-350,rgb);
for (int col = 350; col < AppleNTSC::H-2; ++col)
{
int rgbv = rgb[col-350];
if (removeColor && rgbv != 0)
{
rgbv = 0xFFFFFF;
}
this->image.setElem(ip,rgbv);
if (bleed_down)
this->image.setElem(ip+D_IP,rgbv); // display same pixel on next row
++ip;
}
ip += D_IP;
}
delete [] rgb;
}
void AnalogTV::drawMonitorWhite()
{
drawMonitorMonochrome(colors.c()[A2ColorsObserved::WHITE]);
}
void AnalogTV::drawMonitorGreen()
{
drawMonitorMonochrome(colors.c()[A2ColorsObserved::HIRES_GREEN]);
}
void AnalogTV::drawMonitorOrange()
{
drawMonitorMonochrome(colors.c()[A2ColorsObserved::HIRES_ORANGE]);
}
void AnalogTV::drawMonitorMonochrome(const unsigned int color)
{
int ip = 0;
for (int row = 0; row < 192; ++row)
{
for (int col = 350; col < AppleNTSC::H-2; ++col)
{
const int is = row*AppleNTSC::H+col;
const unsigned int rgb = this->signal[is] > 50 ? color : 0;
this->image.setElem(ip,rgb);
if (bleed_down)
this->image.setElem(ip+D_IP,rgb);
++ip;
}
ip += D_IP;
}
}
void AnalogTV::drawTVOld()
{
int *yiq = new int[AppleNTSC::H];
int ip = 0;
for (int row = 0; row < 192; ++row)
{
IQ iq_factor;
if (this->type == TV_OLD_COLOR)
{
const CB cb = get_cb(row);
iq_factor = get_iq_factor(cb);
}
else
{
iq_factor = BLACK_AND_WHITE;
}
ntsc_to_yiq(row*AppleNTSC::H+350,AppleNTSC::H-350,iq_factor,yiq);
for (int col = 350; col < AppleNTSC::H-2; ++col)
{
const int rgb = yiq2rgb(yiq[col-348]); // shift display left 1 pixel
this->image.setElem(ip,rgb);
if (bleed_down)
this->image.setElem(ip+D_IP,rgb);
++ip;
}
ip += D_IP;
}
delete [] yiq;
}
void AnalogTV::drawTVNew()
{
unsigned int *rgb = new unsigned int[AppleNTSC::H];
int ip = 0;
for (int row = 0; row < 192; ++row)
{
const CB cb = get_cb(row);
const bool removeColor = (this->type == TV_NEW_BW || !cb.isColor());
ntsc_to_rgb_newtv(row*AppleNTSC::H+350,AppleNTSC::H-350,rgb);
for (int col = 350; col < AppleNTSC::H-2; ++col)
{
int rgbv = rgb[col-350];
if (removeColor)
{
rgbv = color2bw(rgbv);
}
this->image.setElem(ip,rgbv);
if (bleed_down)
this->image.setElem(ip+D_IP,rgbv);
++ip;
}
ip += D_IP;
}
delete [] rgb;
}
void AnalogTV::drawBlank()
{
this->image.blank();
}
void AnalogTV::ntsc_to_rgb_monitor(const int isignal, const int siglen, unsigned int rgb[])
{
int s0, s1, se;
s0 = s1 = isignal;
se = isignal+siglen;
while (s1 < se)
{
// no signal (black)
while (this->signal[s0] < 50 && s0<se) { rgb[s0-isignal] = 0; ++s0; }
// signal (white, grey, or color)
s1 = s0;
while (this->signal[s1] > 50 && s1<se) { ++s1; }
const int slen = s1-s0;
unsigned int c = 0;
if (slen >= 4)
{
c = 0xFFFFFF;
}
else if (slen == 1)
{
if (this->signal[s0-2] > 50 && this->signal[s0+2] > 50)
c = 0xFFFFFF;
else
c = loresdarkcolor[s0 % 4];
}
else if (slen == 2)
{
c = hirescolor[s0 % 4];
}
else if (slen == 3)
{
c = loreslightcolor[s0 % 4];
}
else
{
++s1;
}
for (int i = s0; i < s1; ++i)
rgb[i-isignal] = c;
s0 = s1;
}
}
void AnalogTV::ntsc_to_rgb_newtv(const int isignal, const int siglen, unsigned int rgb[])
{
int sp, s0, s1, se;
sp = s0 = s1 = isignal;
se = isignal+siglen;
unsigned int c = 0;
while (s1 < se)
{
// no signal; black...
sp = s0;
while (this->signal[s0] < 50 && s0<se) { rgb[s0-isignal] = 0; ++s0; }
// unless it's too short, then color it (but not white)
if (c != 0xFFFFFF)
{
if (s0-sp < 4)
{
for (int i = sp; i < s0; ++i)
rgb[i-isignal] = c;
}
else
{
rgb[sp-isignal] = c;
}
}
// signal (white, grey, or color)
s1 = s0;
while (this->signal[s1] > 50 && s1<se) { ++s1; }
const int slen = s1-s0;
if (slen >= 4)
{
c = 0xFFFFFF;
}
else if (slen == 1)
{
if (this->signal[s0-2] > 50 && this->signal[s0+2] > 50)
c = 0x808080;
else
c = loresdarkcolor[s0 % 4];
}
else if (slen == 2)
{
c = hirescolor[s0 % 4];
}
else if (slen == 3)
{
c = loreslightcolor[s0 % 4];
}
else
{
++s1;
}
for (int i = s0; i < s1; ++i)
rgb[i-isignal] = c;
s0 = s1;
}
}
int *AnalogTV::rcb = new int[AppleNTSC::CB_END-AppleNTSC::CB_START-CB_EXTRA];
CB AnalogTV::get_cb(int lineno)
{
const int isp = lineno * AppleNTSC::H;
for (int i = AppleNTSC::CB_START + CB_EXTRA/2; i < AppleNTSC::CB_END - CB_EXTRA/2; ++i)
{
this->rcb[i-(AppleNTSC::CB_START + CB_EXTRA/2)] = this->signal[isp + i];
}
return CB(this->rcb);
}
std::map<CB,IQ> cacheCB;
const double AnalogTV::IQ_OFFSET_DEGREES = 33;
const double AnalogTV::IQ_OFFSET_RADIANS = AnalogTV::IQ_OFFSET_DEGREES * 3.1415927 / 180;
const double AnalogTV::TINT_I = -cos(AnalogTV::IQ_OFFSET_RADIANS);
const double AnalogTV::TINT_Q = +sin(AnalogTV::IQ_OFFSET_RADIANS);
const double AnalogTV::COLOR_THRESH(1.4);
IQ AnalogTV::get_iq_factor(const CB& cb)
{
std::map<CB,IQ>::iterator hit = cacheCB.find(cb);
if (hit != cacheCB.end())
{
return hit->second;
}
double cb_phase[4];
cb.getPhase(cb_phase);
const double cb_i = cb_phase[2]-cb_phase[0];
const double cb_q = cb_phase[3]-cb_phase[1];
if ((cb_i*cb_i) + (cb_q*cb_q) < COLOR_THRESH)
{
return BLACK_AND_WHITE;
}
double iq_factor[4];
iq_factor[0] = cb_i * TINT_I + cb_q * TINT_Q;
iq_factor[2] = -iq_factor[0];
iq_factor[1] = cb_q * TINT_I - cb_i * TINT_Q;
iq_factor[3] = -iq_factor[1];
const IQ iq(iq_factor);
if (!this->noise)
{
cacheCB[cb] = iq;
}
return iq;
}
const int AnalogTV::IQINTOFF(130);
void AnalogTV::ntsc_to_yiq(const int isignal, const int siglen, const IQ& iq_factor, int yiq[])
{
Lowpass_3_58_MHz filterY;
Lowpass_1_5_MHz filterI;
Lowpass_1_5_MHz filterQ;
for (int off = 0; off < siglen; ++off)
{
const int sig = this->signal[isignal + off];
const int y = filterY.next(sig); // + 40; // to show blacker-than-black levels
int i;
int q;
if (y < -2)
{
i = 0;
q = 0;
}
else
{
i = filterI.next((int)(sig * iq_factor.get(off & 3)));
q = filterQ.next((int)(sig * iq_factor.get((off + 3) & 3)));
}
yiq[off] = (((q+IQINTOFF)&0xff) << 16) | (((i+IQINTOFF)&0xff) << 8) | ((y+IQINTOFF)&0xff);
}
}
int inline AnalogTV::yiq2rgb(const int yiq)
{
double r = (((yiq)&0xFF)-IQINTOFF) + 0.956 * (((yiq>>8)&0xFF)-IQINTOFF) + 0.621 * (((yiq>>16)&0xFF)-IQINTOFF);
double g = (((yiq)&0xFF)-IQINTOFF) - 0.272 * (((yiq>>8)&0xFF)-IQINTOFF) - 0.647 * (((yiq>>16)&0xFF)-IQINTOFF);
double b = (((yiq)&0xFF)-IQINTOFF) - 1.105 * (((yiq>>8)&0xFF)-IQINTOFF) + 1.702 * (((yiq>>16)&0xFF)-IQINTOFF);
const int rgb =
(calc_color(r) << 16)|
(calc_color(g) << 8)|
(calc_color(b) << 0);
return rgb;
}
int inline AnalogTV::color2bw(const int rgb)
{
const int y = rgb2y(rgb);
return y<<16 | y<<8 | y;
}
int inline AnalogTV::rgb2y(const int rgb) // y in range 0-255
{
return (int)((0.299*((rgb>>16)&0xFF) + 0.587*((rgb>>8)&0xFF) + 0.114*((rgb)&0xFF))/1.04);
}
int inline AnalogTV::calc_color(const double color)
{
int x = (int)(color * 0x100 / AppleNTSC::LEVEL_RANGE + .5);
x = clamp(0,x,0x100);
return x & 0xFF;
}
int inline AnalogTV::clamp(int min, int x, int lim)
{
if (x < min)
return min;
if (lim <= x)
return lim-1;
return x;
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ANALOGTV_H
#define ANALOGTV_H
#include "analogtv.h"
#include "applentsc.h"
#include "a2colorsobserved.h"
#include <vector>
class ScreenImage;
class IQ;
class CB;
class AnalogTV
{
public:
enum DisplayType
{
MONITOR_COLOR,
MONITOR_WHITE,
MONITOR_GREEN,
MONITOR_ORANGE,
TV_OLD_COLOR,
TV_OLD_BW,
TV_NEW_COLOR,
TV_NEW_BW,
NUM_DISPLAY_TYPES
};
private:
ScreenImage& image;
bool on;
bool noise;
DisplayType type;
bool bleed_down;
static int* rcb;
A2ColorsObserved colors;
std::vector<unsigned int> hirescolor;
std::vector<unsigned int> loreslightcolor;
std::vector<unsigned int> loresdarkcolor;
static const int IQINTOFF;
static const double IQ_OFFSET_DEGREES;
static const double IQ_OFFSET_RADIANS;
static const double TINT_I;
static const double TINT_Q;
static const double COLOR_THRESH;
static const IQ& BLACK_AND_WHITE;
void drawMonitorColor();
void drawMonitorWhite();
void drawMonitorGreen();
void drawMonitorOrange();
void drawMonitorMonochrome(const unsigned int color);
void drawTVOld();
void drawTVNew();
void drawBlank();
void ntsc_to_rgb_monitor(const int isignal, const int siglen, unsigned int rgb[]);
void ntsc_to_rgb_newtv(const int isignal, const int siglen, unsigned int rgb[]);
CB get_cb(int lineno);
IQ get_iq_factor(const CB& cb);
void ntsc_to_yiq(const int isignal, const int siglen, const IQ& iq_factor, int yiq[]);
static int yiq2rgb(const int yiq);
static int color2bw(const int rgb);
static int rgb2y(const int rgb); // ;y in range 0-255
static int calc_color(const double color);
static int clamp(int min, int x, int lim);
public:
void drawCurrent();
signed char* signal;
AnalogTV(ScreenImage& image);
~AnalogTV();
bool isOn() const
{
return this->on;
}
void powerOn(bool b);
void toggleBleedDown();
void restartSignal();
void setType(DisplayType type);
void cycleType();
void setNoise(bool noise) { this->noise = noise; }
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "apple2.h"
#include "slots.h"
#include "videomode.h"
#include "keyboard.h"
#include "addressbus.h"
#include "memory.h"
#include "picturegenerator.h"
#include "textcharacters.h"
#include "video.h"
#include "cpu.h"
#include "paddles.h"
#include "paddlebuttonstates.h"
#include "speakerclicker.h"
#include "analogtv.h"
#include "powerupreset.h"
#include "diskcontroller.h"
#include "languagecard.h"
#include "screenimage.h"
#include <iostream>
#include <fstream>
Apple2::Apple2(KeypressQueue& keypresses, PaddleButtonStates& paddleButtonStates, AnalogTV& tv, HyperMode& fhyper, KeyboardBufferMode& buffered, ScreenImage& gui):
slts(gui),
kbd(keypresses,fhyper,buffered),
rom(AddressBus::MOTHERBOARD_ROM_SIZ),
ram(AddressBus::MOTHERBOARD_RAM_SIZ),
cassette(gui),
addressBus(ram,rom,kbd,videoMode,paddles,paddleButtonStates,speaker,cassette,slts),
picgen(tv,videoMode,this->revision),
video(videoMode,addressBus,picgen,textRows),
cpu(addressBus),
powerUpReset(*this),
revision(1)
{
}
Apple2::~Apple2()
{
}
void Apple2::tick()
{
this->cpu.tick();
this->video.tick();
this->paddles.tick();
this->speaker.tick();
this->cassette.tick();
if (this->revision > 0)
this->powerUpReset.tick();
}
void Apple2::powerOn()
{
this->ram.powerOn();
this->cpu.powerOn();
this->videoMode.powerOn();
this->video.powerOn();
this->picgen.powerOn();
this->powerUpReset.powerOn();
}
void Apple2::powerOff()
{
this->ram.powerOff();
}
void Apple2::reset()
{
this->cpu.reset();
this->slts.reset();
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef APPLE2_H
#define APPLE2_H
#include "timable.h"
#include "slots.h"
#include "videomode.h"
#include "keyboard.h"
#include "addressbus.h"
#include "memory.h"
#include "picturegenerator.h"
#include "textcharacters.h"
#include "video.h"
#include "cpu.h"
#include "paddles.h"
#include "paddlebuttonstates.h"
#include "speakerclicker.h"
#include "analogtv.h"
#include "powerupreset.h"
#include "cassette.h"
class Emulator;
class ScreenImage;
class Apple2 : public Timable
{
Slots slts;
VideoMode videoMode;
Keyboard kbd;
Paddles paddles;
SpeakerClicker speaker;
Memory rom;
Memory ram;
Cassette cassette;
AddressBus addressBus;
PictureGenerator picgen;
TextCharacters textRows;
Video video;
CPU cpu;
PowerUpReset powerUpReset;
int revision;
public:
Apple2(KeypressQueue& keypresses, PaddleButtonStates& paddleButtonStates, AnalogTV& tv, HyperMode& fhyper, KeyboardBufferMode& buffered, ScreenImage& gui);
~Apple2();
void powerOn();
void powerOff();
void reset();
virtual void tick();
friend class Emulator;
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "applentsc.h"

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef APPLENTSC_H
#define APPLENTSC_H
class AppleNTSC
{
private:
AppleNTSC() {}
public:
enum { V = 262, H = (25+40)*14+2 };
enum { SIGNAL_LEN = V*H };
enum
{
FP_START = 0,
SYNC_START = FP_START+126,
BP_START = SYNC_START+112,
CB_START = BP_START+0,
CB_END = CB_START+56,
SPIKE = CB_END+34,
PIC_START = CB_END+56
};
enum
{
WHITE_LEVEL = 100,
BLANK_LEVEL = 0,
SYNC_LEVEL = -40,
CB_LEVEL = 20,
LEVEL_RANGE = WHITE_LEVEL-SYNC_LEVEL
};
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "card.h"
#include "configep2.h"
Card::Card():
rom(0x0100),
seventhRom(0x0800)
{
}
Card::~Card()
{
}
void Card::reset()
{
}
unsigned char Card::io(const unsigned short /*address*/, const unsigned char data, const bool /*writing*/)
{
return data;
}
unsigned char Card::readRom(const unsigned short address, const unsigned char data)
{
this->activeSeventhRom = true;
return this->rom.read(address);
}
void Card::readSeventhRom(const unsigned short address, unsigned char* const pb)
{
if (address == 0x7FF)
{
this->activeSeventhRom = false;
}
else if (this->activeSeventhRom && hasSeventhRom())
{
*pb = this->seventhRom.read(address);
}
}
void Card::loadRom(const unsigned short base, std::istream& in)
{
this->rom.load(base,in);
}
void Card::loadSeventhRom(const unsigned short base, std::istream& in)
{
this->seventhRom.load(base,in);
}
bool Card::inhibitMotherboardRom()
{
return false;
}
void Card::ioBankRom(const unsigned short /*addr*/, unsigned char* const /*pb*/, const bool /*write*/)
{
}
void Card::loadBankRom(const unsigned short /*base*/, std::istream& /*in*/)
{
throw ConfigException("This card has no $D000 ROM");
}
std::string Card::getName()
{
return "";
}
bool Card::isDirty()
{
return false;
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CARD_H
#define CARD_H
#include "memory.h"
#include <istream>
#include <string>
class Card
{
private:
bool activeSeventhRom;
protected:
Memory rom;
Memory seventhRom;
public:
Card();
virtual ~Card();
virtual void reset();
virtual unsigned char io(const unsigned short address, const unsigned char data, const bool writing);
virtual unsigned char readRom(const unsigned short address, const unsigned char data);
virtual bool hasSeventhRom() { return false; }
virtual void readSeventhRom(const unsigned short address, unsigned char* const pb);
virtual void loadRom(const unsigned short base, std::istream& in);
virtual void loadSeventhRom(const unsigned short base, std::istream& in);
virtual bool inhibitMotherboardRom();
virtual void ioBankRom(const unsigned short addr, unsigned char* const pb, const bool write);
virtual void loadBankRom(const unsigned short base, std::istream& in);
virtual bool isDirty();
virtual std::string getName();
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
cassette tape image file format
-------------------------------
Each byte represents one half cycle, in 10-microsoecond units.
For example, consider the following values in the file (decimal):
65 65 65 65 65 20 25 50 50 25 25 25 25 50 50
This represents the following half-cycles (in microseconds)
650 650 650 650 650 200 250 500 500 250 250 250 250 500 500
which has the following meaning:
|--------HEADER-----|--sync-|-1-bit-|-0-bit-|-0-bit-|-1-bit-|
| | | | | | |
|650 650 650 650 650|200 250|500 500|250 250|250 250|500 500|
*/
#include <fstream>
#include <iostream>
#include "cassette.h"
Cassette::Cassette(ScreenImage& gui):
gui(gui), t(0), prevT(0), markT(0), positive(false)
{
unload();
}
Cassette::~Cassette()
{
}
void Cassette::tick()
{
++this->t;
// TODO: check for roll-over of tick-count in Cassette???
// if (this->t == 0)
}
void Cassette::output()
{
if (isWriteProtected() || !isLoaded())
{
return;
}
if (this->half_cycles.size() <= this->pos)
{
this->half_cycles.push_back(getHalfCycleTime());
this->pos = this->half_cycles.size();
this->gui.setCassettePos(this->pos,this->half_cycles.size());
this->modified = true;
this->gui.setCassetteDirty(true);
}
else
{
// TODO should we allow overwriting of cassestte tape data?
// If so, need to watch out because while reading Apple will
// be calling Cassette::output, too.
}
this->prevT = this->t;
}
unsigned char Cassette::getHalfCycleTime() // in 10-microsecond units
{
const unsigned int delta_cycles(this->t-this->prevT);
if (delta_cycles < 225)
return 20;
if (delta_cycles < 375)
return 25;
if (delta_cycles < 575)
return 50;
return 65;
}
bool Cassette::input()
{
if (!isLoaded())
{
// no tape loaded
return true;
}
if (this->markT <= this->t) // we've hit our mark
{
this->positive = !this->positive;
if (this->pos < this->half_cycles.size())
{
// set our next mark to be at the end of next half-cycle read from tape
this->markT = this->t+this->half_cycles[this->pos++]*10;
this->gui.setCassettePos(this->pos,this->half_cycles.size());
}
}
return this->positive;
}
void Cassette::rewind()
{
this->pos = 0;
this->gui.setCassettePos(this->pos,this->half_cycles.size());
}
bool Cassette::newFile(const std::string& filePath)
{
std::ifstream in(filePath.c_str(),std::ios::binary|std::ios::in);
if (in.is_open())
{
in.close();
std::cerr << "Error creating file; file already exists: " << filePath << std::endl;
return false;
}
std::ofstream out(filePath.c_str(),std::ios::binary|std::ios::out);
out.close();
return load(filePath);
}
bool Cassette::load(const std::string& filePath)
{
// TODO better I/O error handling during cassette loading and saving
std::ifstream in(filePath.c_str(),std::ios::binary|std::ios::in|std::ios::ate);
if (!in.is_open())
{
std::cerr << "Error loading " << filePath << std::endl;
return false;
}
if (isLoaded())
{
unload();
}
const std::ifstream::pos_type size = in.tellg();
if (size > 0)
{
this->half_cycles.resize(size);
in.seekg(0,std::ios::beg);
in.read((char*)&this->half_cycles[0],size);
// std::cerr << "Read " << size << " bytes from " << filePath << std::endl;
}
in.close();
this->filePath = filePath;
checkForWriteProtection();
this->loaded = true;
this->modified = false;
this->gui.setCassetteFile(filePath);
this->gui.setCassetteDirty(false);
this->gui.setCassettePos(this->pos,size);
return true;
}
void Cassette::checkForWriteProtection()
{
std::ofstream outf(filePath.c_str(),std::ios::binary|std::ios::app);
this->writable = outf.is_open();
outf.close();
}
void Cassette::save()
{
if (isWriteProtected() || !isLoaded())
{
return;
}
std::ofstream out(filePath.c_str(),std::ios::binary);
out.write((char*)&this->half_cycles[0],this->half_cycles.size());
out.flush();
out.close();
this->modified = false;
this->gui.setCassetteDirty(false);
}
void Cassette::unload()
{
this->pos = 0;
this->writable = true;
this->loaded = false;
this->filePath = "";
this->modified = false;
this->half_cycles.clear();
this->gui.setCassetteFile("");
this->gui.setCassetteDirty(false);
this->gui.setCassettePos(this->pos,this->half_cycles.size());
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CASSETTE_H
#define CASSETTE_H
#include <vector>
#include <string>
#include "screenimage.h"
class Cassette
{
private:
unsigned int t;
unsigned int prevT;
unsigned int markT;
bool positive;
std::vector<unsigned char> half_cycles;
std::string fileName;
std::string filePath;
bool writable;
bool loaded;
unsigned int pos;
bool modified;
ScreenImage& gui;
void checkForWriteProtection();
unsigned char getHalfCycleTime(); // in 10-microsecond units
public:
Cassette(ScreenImage& gui);
~Cassette();
void tick();
void output();
bool input();
void rewind();
bool newFile(const std::string& filePath);
bool load(const std::string& filePath);
std::string getFileName()
{
return this->fileName;
}
bool isLoaded()
{
return this->loaded;
}
void save();
void unload();
bool isWriteProtected()
{
return !this->writable;
}
bool isModified()
{
return this->modified;
}
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "clipboardhandler.h"
#include <SDL/SDL.h>
#include <SDL/SDL_syswm.h>
#include <limits.h>
// taken from: http://www.libsdl.org/projects/scrap (original author: Sam Lantinga)
/* Determine what type of clipboard we are using */
#if defined(__WIN32__) || defined(__CYGWIN__)
#define WIN_SCRAP
#elif defined(__unix__)
#define X11_SCRAP
#else
#error Unknown window manager for clipboard handling
#endif /* scrap type */
/* System dependent variables */
#if defined(X11_SCRAP)
static Display *SDL_Display;
static Window SDL_Window;
static void (*Lock_Display)();
static void (*Unlock_Display)();
#elif defined(WIN_SCRAP)
static HWND SDL_Window;
#endif /* scrap type */
static bool initialized(false);
static bool have(false);
#ifdef X11_SCRAP
static int clipboard_filter(const SDL_Event *event)
{
/* Post all non-window manager specific events */
if ( event->type != SDL_SYSWMEVENT ) {
return(1);
}
/* Handle window-manager specific clipboard events */
switch (event->syswm.msg->event.xevent.type) {
/* Copy the selection from XA_CUT_BUFFER0 to the requested property */
case SelectionRequest: {
XSelectionRequestEvent *req;
XEvent sevent;
int seln_format;
unsigned long nbytes;
unsigned long overflow;
unsigned char *seln_data;
req = &event->syswm.msg->event.xevent.xselectionrequest;
sevent.xselection.type = SelectionNotify;
sevent.xselection.display = req->display;
sevent.xselection.selection = req->selection;
sevent.xselection.target = None;
sevent.xselection.property = None;
sevent.xselection.requestor = req->requestor;
sevent.xselection.time = req->time;
if ( XGetWindowProperty(SDL_Display, DefaultRootWindow(SDL_Display),
XA_CUT_BUFFER0, 0, INT_MAX/4, False, req->target,
&sevent.xselection.target, &seln_format,
&nbytes, &overflow, &seln_data) == Success )
{
if ( sevent.xselection.target == req->target )
{
if ( sevent.xselection.target == XA_STRING )
{
if ( seln_data[nbytes-1] == '\0' )
--nbytes;
}
XChangeProperty(SDL_Display, req->requestor, req->property,
sevent.xselection.target, seln_format, PropModeReplace,
seln_data, nbytes);
sevent.xselection.property = req->property;
}
XFree(seln_data);
}
XSendEvent(SDL_Display,req->requestor,False,0,&sevent);
XSync(SDL_Display, False);
}
break;
}
/* Post the event for X11 clipboard reading above */
return(1);
}
#endif /* X11_SCRAP */
ClipboardHandler::ClipboardHandler()
{
if (initialized)
return;
initialized = true;
SDL_SetError("SDL is not running on known window manager");
/* Grab the window manager specific information */
SDL_SysWMinfo info;
SDL_VERSION(&info.version);
if (SDL_GetWMInfo(&info))
{
/* Save the information for later use */
#if defined(X11_SCRAP)
if (info.subsystem == SDL_SYSWM_X11)
{
SDL_Display = info.info.x11.display;
SDL_Window = info.info.x11.window;
Lock_Display = info.info.x11.lock_func;
Unlock_Display = info.info.x11.unlock_func;
/* Enable the special window hook events */
SDL_EventState(SDL_SYSWMEVENT, SDL_ENABLE);
SDL_SetEventFilter(clipboard_filter);
have = true;
}
else
{
SDL_SetError("SDL is not running on X11");
}
#elif defined(WIN_SCRAP)
SDL_Window = info.window;
have = true;
#endif /* scrap type */
}
}
ClipboardHandler::~ClipboardHandler()
{
}
std::string ClipboardHandler::getText()
{
std::string ret;
if (!have)
return ret;
#if defined(X11_SCRAP)
const Atom format(XA_STRING);
Atom selection;
Lock_Display();
Window owner = XGetSelectionOwner(SDL_Display, XA_PRIMARY);
Unlock_Display();
if (owner == None || owner == SDL_Window)
{
owner = DefaultRootWindow(SDL_Display);
selection = XA_CUT_BUFFER0;
}
else
{
int selection_response = 0;
SDL_Event event;
owner = SDL_Window;
Lock_Display();
selection = XInternAtom(SDL_Display, "SDL_SELECTION", False);
XConvertSelection(SDL_Display, XA_PRIMARY, format, selection, owner, CurrentTime);
Unlock_Display();
while (!selection_response)
{
SDL_WaitEvent(&event);
if (event.type == SDL_SYSWMEVENT)
{
XEvent xevent = event.syswm.msg->event.xevent;
if (xevent.type == SelectionNotify && xevent.xselection.requestor == owner)
selection_response = 1;
}
}
}
Lock_Display();
Atom seln_type;
int seln_format;
unsigned long nbytes;
unsigned long overflow;
char *src;
if (XGetWindowProperty(SDL_Display, owner, selection, 0, INT_MAX/4, False, format, &seln_type, &seln_format, &nbytes, &overflow, (unsigned char **)&src) == Success)
{
if (seln_type == format)
{
ret.assign(src,nbytes);
}
XFree(src);
}
Unlock_Display();
#elif defined(WIN_SCRAP)
const UINT format(CF_TEXT);
if (IsClipboardFormatAvailable(format) && OpenClipboard(SDL_Window))
{
const HANDLE hMem = GetClipboardData(format);
if (hMem)
{
char *src = (char*)GlobalLock(hMem);
ret.assign(src);
GlobalUnlock(hMem);
}
CloseClipboard();
}
#endif /* scrap type */
return ret;
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CLIPBOARDHANDLER_H
#define CLIPBOARDHANDLER_H
#include <string>
class ClipboardHandler
{
public:
ClipboardHandler();
~ClipboardHandler();
std::string getText();
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "clockcard.h"
#include <ctime>
ClockCard::ClockCard():
latch(0),
pos(0)
{
}
ClockCard::~ClockCard()
{
}
unsigned char ClockCard::io(const unsigned short address, const unsigned char data, const bool writing)
{
const int sw = address & 0x0F;
if (sw == 0)
{
if (!(this->latch & 0x80))
{
if (this->pos == 0)
{
getTime();
}
char c = this->time[this->pos];
this->latch = (unsigned char)(c | 0x80);
++this->pos;
if (this->pos >= this->timelen)
{
this->pos = 0;
}
}
}
else if (sw == 1)
{
this->latch &= 0x7F;
}
return this->latch;
}
#define TIMEFORMAT "%m,0%w,%d,%H,%M,%S,000,%Y,%Z,D\r"
void ClockCard::getTime()
{
time_t now;
::time(&now);
struct tm* nowtm = ::localtime(&now);
this->timelen = ::strftime(this->time,sizeof(this->time),TIMEFORMAT,nowtm);
this->time[this->timelen-2] = nowtm->tm_isdst>0 ? '1' : '0';
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CLOCKCARD_H
#define CLOCKCARD_H
#include "card.h"
#include <string>
class ClockCard : public Card
{
private:
unsigned char latch;
unsigned int pos;
char time[64];
size_t timelen;
void getTime();
public:
ClockCard();
~ClockCard();
virtual unsigned char io(const unsigned short address, const unsigned char data, const bool writing);
virtual std::string getName() { return "clock"; }
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "configep2.h"
#include "memory.h"
#include "slots.h"
#include "diskcontroller.h"
#include "languagecard.h"
#include "firmwarecard.h"
#include "standardout.h"
#include "standardin.h"
#include "clockcard.h"
#include "cassette.h"
#include <iostream>
#include <istream>
#include <fstream>
#include <sstream>
#include <string>
#include <stdexcept>
unsigned char Config::disk_mask(0);
Config::Config(const std::string& file_path):
file_path(file_path)
{
}
Config::~Config()
{
}
static void strip_comment(std::string& str)
{
const size_t comment = str.find('#');
if (comment < std::string::npos)
{
str.erase(comment);
}
}
static void trim(std::string& str)
{
{
const size_t p = str.find_first_not_of(" \t");
if (p < std::string::npos)
{
str.erase(0,p);
}
}
{
const size_t p = str.find_last_not_of(" \t");
if (p+1 < std::string::npos)
{
str.erase(p+1);
}
}
}
void Config::parse(Memory& ram, Memory& rom, Slots& slts, int& revision, ScreenImage& gui, Cassette& cassette)
{
std::ifstream* pConfig;
std::string path(this->file_path);
if (!path.empty())
{
pConfig = new std::ifstream(path.c_str());
if (!pConfig->is_open())
{
std::stringstream ss;
ss << "Cannot open config file " << this->file_path.c_str();
throw std::runtime_error(ss.str());
}
}
if (path.empty())
{
/*
On Windows, the default directory will be
C:\Program Files\Epple2 if they start the
program from the Start Menu; therefore
etc/epple2/epple2.conf would be
C:\Program Files\epple2\etc\epple2\epple2.conf
On Linux... the current directory could be
anything, so this probably won't find it (unless
the current directory is /).
*/
path = "etc/epple2/epple2.conf";
pConfig = new std::ifstream(path.c_str());
if (!pConfig->is_open())
path.clear();
}
if (path.empty())
{
/*
This is primarily for Linux. If configured for
a PREFIX of "/usr/local", then this would be
/usr/local/etc/epple2/epple2.conf
*/
path = ETCDIR "/epple2/epple2.conf";
pConfig = new std::ifstream(path.c_str());
if (!pConfig->is_open())
path.clear();
}
if (path.empty())
{
/*
Last effort to find it (most likely will
only work on Linux).
*/
path = "/etc/epple2/epple2.conf";
pConfig = new std::ifstream(path.c_str());
if (!pConfig->is_open())
path.clear();
}
if (path.empty())
{
std::cerr << "Cannot open config file /etc/epple2/epple2.conf" << std::endl;
return;
}
std::string line;
std::getline(*pConfig,line);
while (!pConfig->eof())
{
strip_comment(line);
trim(line);
if (!line.empty())
{
parseLine(line,ram,rom,slts,revision,gui,cassette);
}
std::getline(*pConfig,line);
}
pConfig->close();
delete pConfig;
// TODO: make sure there is no more than ONE stdin and/or ONE stdout card
}
void Config::parseLine(const std::string& line, Memory& ram, Memory& rom, Slots& slts, int& revision, ScreenImage& gui, Cassette& cassette)
{
try
{
tryParseLine(line,ram,rom,slts,revision,gui,cassette);
}
catch (const ConfigException& err)
{
std::cerr << err.msg.c_str() << std::endl;
}
}
void Config::tryParseLine(const std::string& line, Memory& ram, Memory& rom, Slots& slts, int& revision, ScreenImage& gui, Cassette& cassette)
{
std::istringstream tok(line);
std::string cmd;
tok >> cmd;
if (cmd == "slot")
{
int slot;
std::string sCardType;
tok >> slot >> sCardType;
insertCard(sCardType,slot,slts,gui);
}
else if (cmd == "import")
{
std::string sm;
tok >> sm;
int slot(-1);
if (sm == "slot")
{
tok >> slot;
}
else if (sm != "motherboard")
{
throw ConfigException("error at \""+sm+"\"; expected \"slot #\" or \"motherboard\"");
}
std::string romtype;
tok >> romtype;
unsigned short base(0);
tok >> std::hex >> base;
std::string file;
std::getline(tok,file);
trim(file);
std::ifstream memfile(file.c_str(),std::ios::binary);
if (!memfile.is_open())
{
throw ConfigException("cannot open file "+file);
}
if (slot < 0) // motherboard
{
if (romtype == "rom")
{
rom.load(base,memfile);
}
else if (romtype == "ram")
{
ram.load(base,memfile);
}
else
{
throw ConfigException("error at \""+romtype+"\"; expected rom or ram");
}
}
else
{
if (8 <= slot)
{
throw ConfigException("invalid slot number");
}
Card* card = slts.get(slot);
if (romtype == "rom")
card->loadRom(base,memfile);
else if (romtype == "rom7")
card->loadSeventhRom(base,memfile);
else if (romtype == "rombank")
card->loadBankRom(base,memfile);
else
throw ConfigException("error at \""+romtype+"\"; expected rom, rom7, or rombank");
}
memfile.close();
}
else if (cmd == "load" || cmd == "save" || cmd == "unload")
{
std::string slotk;
tok >> slotk;
if (slotk != "slot")
{
throw ConfigException("error at \""+slotk+"\"; expected \"slot\"");
}
int slot(-1);
tok >> slot;
std::string drivek;
tok >> drivek;
if (drivek != "drive")
{
throw ConfigException("error at \""+drivek+"\"; expected \"drive\"");
}
int drive(-1);
tok >> drive;
if (cmd == "load")
{
std::string fnib;
std::getline(tok,fnib);
trim(fnib);
loadDisk(slts,slot,drive,fnib);
}
else if (cmd == "unload")
{
unloadDisk(slts,slot,drive);
}
else if (cmd == "save")
{
saveDisk(slts,slot,drive);
}
}
else if (cmd == "revision")
{
tok >> std::hex >> revision;
}
else if (cmd == "cassette")
{
std::string cas;
tok >> cas;
if (cas == "rewind")
{
cassette.rewind();
}
else if (cas == "new")
{
std::string fcas;
std::getline(tok,fcas);
trim(fcas);
cassette.newFile(fcas);
}
else if (cas == "load")
{
std::string fcas;
std::getline(tok,fcas);
trim(fcas);
cassette.load(fcas);
}
else if (cas == "unload")
{
cassette.unload();
}
else if (cas == "save")
{
cassette.save();
}
else
{
throw ConfigException("error: unknown cassette command: "+cas);
}
}
else
{
throw ConfigException("Invalid command: "+cmd);
}
}
void Config::loadDisk(Slots& slts, int slot, int drive, const std::string& fnib)
{
if (drive < 1 || 2 < drive)
{
throw ConfigException("Invalid drive; must be 1 or 2");
}
// TODO if file doesn't exist, name still gets displayed, and there's no error message
Card* card = slts.get(slot);
if (!(disk_mask & (1 << slot)))
{
std::cerr << "Slot " << slot << " doesn't have a disk controller card" << std::endl;
return;
}
DiskController* controller = (DiskController*)card;
controller->loadDisk(drive-1,fnib);
}
void Config::unloadDisk(Slots& slts, int slot, int drive)
{
if (drive < 1 || 2 < drive)
{
throw ConfigException("Invalid drive; must be 1 or 2");
}
Card* card = slts.get(slot);
if (!(disk_mask & (1 << slot)))
{
std::cerr << "Slot " << slot << " doesn't have a disk controller card" << std::endl;
return;
}
DiskController* controller = (DiskController*)card;
controller->unloadDisk(drive-1);
}
void Config::saveDisk(Slots& slts, int slot, int drive)
{
if (drive < 1 || 2 < drive)
{
throw ConfigException("Invalid drive; must be 1 or 2");
}
Card* card = slts.get(slot);
DiskController* controller = (DiskController*)card;
controller->saveDisk(drive-1);
}
void Config::insertCard(const std::string& cardType, int slot, Slots& slts, ScreenImage& gui)
{
if (slot < 0 || 8 <= slot)
{
throw ConfigException("Invalid slot number");
}
Card* card;
disk_mask &= ~(1 << slot);
if (cardType == "language")
{
card = new LanguageCard(gui,slot);
}
else if (cardType == "firmware")
{
card = new FirmwareCard(gui,slot);
}
else if (cardType == "disk")
{
card = new DiskController(gui,slot);
disk_mask |= (1 << slot);
}
else if (cardType == "clock")
{
card = new ClockCard();
}
else if (cardType == "stdout")
{
card = new StandardOut();
}
else if (cardType == "stdin")
{
card = new StandardIn();
}
else if (cardType == "empty")
{
card = 0;
}
else
{
throw ConfigException("Invalid card type: "+cardType);
}
if (card)
slts.set(slot,card);
else
slts.remove(slot);
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CONFIG_H
#define CONFIG_H
#include <string>
class Memory;
class Slots;
class ScreenImage;
class Cassette;
class ConfigException
{
public:
const std::string msg;
ConfigException(const std::string& msg) : msg(msg) {}
};
class Config
{
private:
const std::string& file_path;
static unsigned char disk_mask;
static void loadDisk(Slots& slts, int slot, int drive, const std::string& fnib);
static void unloadDisk(Slots& slts, int slot, int drive);
static void saveDisk(Slots& slts, int slot, int drive);
static void insertCard(const std::string& cardType, int slot, Slots& slts, ScreenImage& gui);
static void tryParseLine(const std::string& line, Memory& ram, Memory& rom, Slots& slts, int& revision, ScreenImage& gui, Cassette& cassette);
public:
Config(const std::string& file_path);
~Config();
void parse(Memory& ram, Memory& rom, Slots& slts, int& revision, ScreenImage& gui, Cassette& cassette);
static void parseLine(const std::string& line, Memory& ram, Memory& rom, Slots& slts, int& revision, ScreenImage& gui, Cassette& cassette);
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CPU_H
#define CPU_H
class AddressBus;
class CPU
{
private:
enum { MEMORY_LIM = 1 << 0x10 };
enum { IRQ_VECTOR = MEMORY_LIM-2 }; // or BRK
enum { RESET_VECTOR = IRQ_VECTOR-2 }; // or power-on
enum { NMI_VECTOR = RESET_VECTOR-2 };
unsigned char adl;
unsigned char adh;
unsigned char bal;
unsigned char bah;
unsigned char ial;
unsigned char iah;
unsigned char idx;
signed char offset;
bool branch;
signed char sc;
bool wc;
bool pendingIRQ;
bool pendingNMI;
bool pendingReset;
bool started;
unsigned char a;
unsigned char x;
unsigned char y;
unsigned char s;
//p = NVMBDIZC
enum { PMASK_C = 1<<0 };
enum { PMASK_Z = 1<<1 };
enum { PMASK_I = 1<<2 };
enum { PMASK_D = 1<<3 };
enum { PMASK_B = 1<<4 };
enum { PMASK_M = 1<<5 };
enum { PMASK_V = 1<<6 };
enum { PMASK_N = 1<<7 };
unsigned char p;
unsigned short pc;
AddressBus& addressBus;
unsigned short address;
unsigned char data;
unsigned short opcode;
signed char t;
static void (CPU::*addr[])();
static void (CPU::*exec[])();
void firstCycle();
int getInterruptAddress();
int getInterruptPseudoOpCode();
void subsequentCycle();
void read();
void write();
void execute();
void done();
unsigned char pch();
unsigned char pcl();
unsigned short sp();
unsigned short push();
unsigned short pull();
unsigned char getIndex();
unsigned short ad();
unsigned short ia();
unsigned short ba();
unsigned short combine(const unsigned char lo, const unsigned char hi);
void setP(const unsigned char mask, const unsigned char val);
void setStatusRegisterNZ(const unsigned char val);
unsigned char shiftLeft(unsigned char byt);
unsigned char shiftRight(unsigned char byt);
unsigned char rotateLeft(unsigned char byt);
unsigned char rotateRight(unsigned char byt);
void compare(const unsigned char r);
void addr_SINGLE();
void addr_INTERNAL_IMMEDIATE();
void addr_INTERNAL_ZERO_PAGE();
void addr_INTERNAL_ABSOLUTE();
void addr_INTERNAL_INDIRECT_X();
void addr_INTERNAL_ABSOLUTE_XY();
void addr_INTERNAL_ZERO_PAGE_XY();
void addr_INTERNAL_INDIRECT_Y();
void addr_STORE_ZERO_PAGE();
void addr_STORE_ABSOLUTE();
void addr_STORE_INDIRECT_X();
void addr_STORE_ABSOLUTE_XY();
void addr_STORE_ZERO_PAGE_XY();
void addr_STORE_INDIRECT_Y();
void addr_RMW_ZERO_PAGE();
void addr_RMW_ABSOLUTE();
void addr_RMW_ZERO_PAGE_X();
void addr_RMW_ABSOLUTE_X();
void addr_MISC_PUSH();
void addr_MISC_PULL();
void addr_MISC_JSR();
void addr_MISC_BREAK();
void addr_MISC_RTI();
void addr_JMP_ABSOLUTE();
void addr_JMP_INDIRECT();
void addr_RTS();
void addr_BRANCH();
void addr_NMI();
void addr_RESET();
void addr_IRQ();
void LDA();
void LDX();
void LDY();
void STA();
void STX();
void STY();
void CMP();
void CPX();
void CPY();
void AND();
void ORA();
void EOR();
void ASL();
void ASL_A();
void LSR();
void LSR_A();
void ROL();
void ROL_A();
void ROR();
void ROR_A();
void ADC();
void SBC();
void INC();
void DEC();
void INX();
void INY();
void DEX();
void DEY();
void BIT();
void PHA();
void PHP();
void PLA();
void PLP();
void BRK();
void RTI();
void JMP();
void RTS();
void JSR();
void BNE();
void BEQ();
void BVC();
void BVS();
void BCC();
void BCS();
void BPL();
void BMI();
void TAX();
void TXA();
void TAY();
void TYA();
void TXS();
void TSX();
void CLC();
void SEC();
void CLI();
void SEI();
void CLV();
void CLD();
void SED();
void NOP();
void Unoff();
void Unoff1();
void Unoff2();
void Unoff3();
void Hang();
public:
CPU(AddressBus& addressBus);
~CPU();
void powerOn();
void reset();
void IRQ();
void NMI();
void tick();
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "diskbytes.h"
#include <vector>
#include <algorithm>
#include <istream>
#include <ostream>
#include <fstream>
DiskBytes::DiskBytes()
{
unload();
}
DiskBytes::~DiskBytes()
{
}
bool DiskBytes::load(const std::string& filePath)
{
// TODO better I/O error handling during disk loading and saving
std::ifstream in(filePath.c_str(),std::ios::binary|std::ios::in);
if (!in.is_open())
{
return false;
}
if (isLoaded())
{
unload();
}
for (int t(0); t < TRACKS_PER_DISK; ++t)
{
this->bytes[t].resize(BYTES_PER_TRACK);
in.read((char*)&this->bytes[t][0],BYTES_PER_TRACK);
}
in.close();
this->filePath = filePath;
checkForWriteProtection();
this->loaded = true;
this->modified = false;
return true;
}
void DiskBytes::checkForWriteProtection()
{
std::ofstream outf(filePath.c_str(),std::ios::binary|std::ios::app);
this->writable = outf.is_open();
outf.close();
}
void DiskBytes::save()
{
if (isWriteProtected() || !isLoaded())
{
return;
}
std::ofstream out(filePath.c_str(),std::ios::binary);
for (int t(0); t < TRACKS_PER_DISK; ++t)
out.write((char*)&this->bytes[t][0],BYTES_PER_TRACK);
out.flush();
out.close();
this->modified = false;
}
void DiskBytes::unload()
{
this->byt = 0;
this->writable = true;
this->loaded = false;
this->filePath = "";
this->modified = false;
}
unsigned char DiskBytes::get(const int track)
{
if (!isLoaded())
{
return 0xFF;
}
const unsigned char ret = this->bytes[track][this->byt];
nextByte();
return ret;
}
void DiskBytes::put(const unsigned char track, const unsigned char value)
{
if (TRACKS_PER_DISK <= track)
{
throw 0;
}
if (isWriteProtected() || !isLoaded())
{
return;
}
this->bytes[track][this->byt] = value;
this->modified = true;
nextByte();
}
void inline DiskBytes::nextByte()
{
// emulates circular disk track
++this->byt;
if (this->byt >= BYTES_PER_TRACK)
{
this->byt = 0;
}
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DISKBYTES_H
#define DISKBYTES_H
#include <string>
#include <vector>
class DiskBytes
{
private:
enum { TRACKS_PER_DISK = 0x23 };
enum { BYTES_PER_TRACK = 0x1A00 };
std::vector<unsigned char> bytes[TRACKS_PER_DISK];
std::string fileName;
std::string filePath;
bool writable;
bool loaded;
unsigned int byt; // represents rotational position of disk
bool modified;
void nextByte();
void checkForWriteProtection();
public:
DiskBytes();
~DiskBytes();
bool load(const std::string& filePath);
std::string getFileName()
{
return this->fileName;
}
bool isLoaded()
{
return this->loaded;
}
void save();
void unload();
unsigned char get(const int track);
void put(const unsigned char track, const unsigned char value);
bool isWriteProtected()
{
return !this->writable;
}
bool isModified()
{
return this->modified;
}
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "diskcontroller.h"
DiskController::DiskController(ScreenImage& gui, int slot):
gui(gui),
slot(slot),
drive1(diskBytes1,arm1),
drive2(diskBytes2,arm2),
currentDrive(&this->drive1)
{
}
DiskController::~DiskController()
{
}
unsigned char DiskController::io(const unsigned short addr, const unsigned char d, const bool writing)
{
unsigned char data(d);
const unsigned char q = (addr & 0x000E) >> 1;
const bool on = (addr & 0x0001);
switch (q)
{
case 0:
case 1:
case 2:
case 3:
this->currentDrive->setMagnet(q,on);
this->gui.setTrack(this->slot,getCurrentDriveNumber(),getTrack());
break;
case 4:
this->motorOn = on;
this->gui.setIO(this->slot,getCurrentDriveNumber(),on);
break;
case 5:
this->gui.clearCurrentDrive(this->slot,getCurrentDriveNumber());
this->currentDrive = (on ? &this->drive2 : &this->drive1);
this->gui.setCurrentDrive(this->slot,getCurrentDriveNumber(),getTrack(),this->motorOn);
break;
case 6:
if (on && this->write && writing)
{
set(data);
this->gui.setIO(this->slot,getCurrentDriveNumber(),this->motorOn);
this->gui.setDirty(this->slot,getCurrentDriveNumber(),true);
}
else if (!(on || this->write))
{
data = get();
}
break;
case 7:
this->write = on;
if (this->currentDrive->isWriteProtected())
{
data |= 0x80;
}
else
{
data &= 0x7F;
}
break;
}
return data;
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "card.h"
#include "drive.h"
#include "screenimage.h"
#include <string>
#include <iostream>
class DiskController : public Card
{
private:
ScreenImage& gui;
int slot;
DiskBytes diskBytes1;
StepperMotor arm1;
Drive drive1;
DiskBytes diskBytes2;
StepperMotor arm2;
Drive drive2;
Drive* currentDrive;
bool write;
bool motorOn;
// TODO for a rev. 0 motherboard, the disk controller will auto reset the CPU
void set(unsigned char data)
{
if (!this->motorOn)
{
return;
}
this->currentDrive->set(data);
}
unsigned char get() const
{
if (!this->motorOn)
{
return 0xFF;
}
return this->currentDrive->get();
}
Drive& getDrive(const unsigned char drive)
{
return (drive == 0) ? this->drive1 : this->drive2;
}
Drive& getOtherDrive()
{
return (this->currentDrive == &this->drive1) ? this->drive2 : this->drive1;
}
public:
DiskController(ScreenImage& gui, int slot);
~DiskController();
virtual unsigned char io(const unsigned short address, const unsigned char data, const bool writing);
void reset()
{
this->gui.setIO(this->slot,getCurrentDriveNumber(),false);
this->gui.clearCurrentDrive(this->slot,getCurrentDriveNumber());
this->currentDrive = &this->drive1;
this->motorOn = false;
this->gui.setCurrentDrive(this->slot,getCurrentDriveNumber(),getTrack(),false);
}
void loadDisk(unsigned char drive, const std::string& fnib)
{
if (!this->getDrive(drive).loadDisk(fnib))
{
return;
}
this->gui.setDiskFile(this->slot,drive,fnib);
this->gui.setDirty(this->slot,getCurrentDriveNumber(),false);
}
void unloadDisk(unsigned char drive)
{
this->getDrive(drive).unloadDisk();
this->gui.setDiskFile(this->slot,drive,"");
this->gui.setDirty(this->slot,getCurrentDriveNumber(),false);
}
void saveDisk(unsigned char drive)
{
this->getDrive(drive).saveDisk();
this->gui.setDirty(this->slot,getCurrentDriveNumber(),false);
}
bool isMotorOn()
{
return this->motorOn;
}
const DiskBytes& getDiskBytes(unsigned char disk)
{
return this->getDrive(disk).getDiskBytes();
}
unsigned char getTrack()
{
return this->currentDrive->getTrack();
}
bool isWriting()
{
return this->write;
}
bool isModified()
{
return this->currentDrive->isModified();
}
bool isModifiedOther()
{
return getOtherDrive().isModified();
}
bool isWriteProtected()
{
return this->currentDrive->isWriteProtected();
}
bool isDirty()
{
return isModified() || isModifiedOther();
}
unsigned char getCurrentDriveNumber()
{
return this->currentDrive == &this->drive1 ? 0 : 1;
}
unsigned char getOtherDriveNumber()
{
return 1-getCurrentDriveNumber();
}
virtual std::string getName() { return "disk][ drive 1 drive 2 "; }
};

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "drive.h"

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DRIVE_H
#define DRIVE_H
#include <string>
#include "diskbytes.h"
#include "steppermotor.h"
class Drive
{
private:
enum { TRACKS_PER_DISK = 0x23 };
DiskBytes& disk;
StepperMotor& arm;
public:
Drive(DiskBytes& disk, StepperMotor& arm):
disk(disk),
arm(arm)
{
}
~Drive() {}
bool loadDisk(const std::string& fnib)
{
return this->disk.load(fnib);
}
void unloadDisk()
{
this->disk.unload();
}
bool isLoaded()
{
return this->disk.isLoaded();
}
void saveDisk()
{
this->disk.save();
}
bool isWriteProtected() const
{
return this->disk.isWriteProtected();
}
bool isModified() const
{
return this->disk.isModified();
}
void setMagnet(unsigned char q, bool on)
{
this->arm.setMagnet(q,on);
}
int getTrack() const
{
return this->arm.getTrack();
}
unsigned char get() const
{
return this->disk.get(this->arm.getTrack());
}
void set(unsigned char value)
{
this->disk.put(this->arm.getTrack(),value);
}
const DiskBytes& getDiskBytes()
{
return this->disk;
}
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef E2CONST_H
#define E2CONST_H
class E2Const
{
public:
/*
The NTSC standard defines the field rate as 60 fields per second. The number 60
is based on the USA AC current frequency of 60 Hz. This, in turn, was based on the
clock standard (60 seconds per minute and 60 minutes per hour).
*/
static const int NTSC_FIELD_HZ = 60;
/*
The NTSC standard defines 525 lines per frame, which was chosen to be a multiple
of a small number of standard tubes at the time, to produce a rate between RCA's
recommended 441 (used by NBC) and Philco's suggested 600-800 lines.
*/
static const int NTSC_LINES_PER_FRAME = 3*5*5*7;
/*
When color was added to the NTSC signal, studies by General Electric showed that
minimum interference was achieved using a subcarrier frequency 455 times the field
rate, which can also be obtained using standard tubes.
*/
static const int NTSC_COLOR_MULTIPLE = 5*7*13;
/*
Adding color to NTSC also required slowing down the frame rate, by dropping one
field after every 1000.
*/
static const int NTSC_COLOR_DROP_FIELD = 1000;
/*
Calculate the color sub-channel rate, times 4.
This will be the (approximate) Hz of the "14M"
crystal oscillator in the Apple ][.
14318181.818181818... Hz rounds to 14318182 Hz
U.A.II, p.3-2
*/
static const int CRYSTAL_HZ = (int)(1.0F*NTSC_FIELD_HZ * NTSC_LINES_PER_FRAME * NTSC_COLOR_MULTIPLE * NTSC_COLOR_DROP_FIELD / (NTSC_COLOR_DROP_FIELD+1));
/*
U.A.II, p. 3-3
Normal 6502 cycle == 14 crystal periods
Long 6502 cycle == 16 crystal periods
*/
static const int CRYSTAL_CYCLES_PER_CPU_CYCLE = 14;
static const int EXTRA_CRYSTAL_CYCLES_PER_CPU_LONG_CYCLE = 2;
/*
65 bytes per row (64 normal CPU cycles plus one long CPU cycle)
*/
static const int BYTES_PER_ROW = (int)((NTSC_COLOR_DROP_FIELD+1)*1.0F*CRYSTAL_HZ/(NTSC_FIELD_HZ/2*NTSC_COLOR_DROP_FIELD*NTSC_LINES_PER_FRAME*CRYSTAL_CYCLES_PER_CPU_CYCLE));
static const int HORIZ_CYCLES = BYTES_PER_ROW;
/*
U.A.II, p. 3-2, "composite frequency... 1.0205 MHz"
Actually 1020484 Hz.
*/
static const int AVG_CPU_HZ = (int)((1.0F*CRYSTAL_HZ*HORIZ_CYCLES)/(CRYSTAL_CYCLES_PER_CPU_CYCLE*HORIZ_CYCLES+EXTRA_CRYSTAL_CYCLES_PER_CPU_LONG_CYCLE));
/*
A normal NTSC field is 262.5 lines (half of a full frame's 525 lines).
The Apple rounds this down to 262 lines.
*/
static const int NTSC_WHOLE_LINES_PER_FIELD = NTSC_LINES_PER_FRAME/2;
static const int BYTES_PER_FIELD = BYTES_PER_ROW*NTSC_WHOLE_LINES_PER_FIELD;
// exactly 1 million
static const int MEGA = 1000000;
static const int VISIBLE_BITS_PER_BYTE = 7;
static const int VISIBLE_LINES_PER_CHARACTER = 8;
/*
* 1000+1 seconds 2 fields 1 frame 1000000 microseconds 63 50
* total horizontal line period = -------------- * -------- * ------------- * -------------------- = ( -- + -- ) microseconds per line
* 60*1000 fields 1 frame 3*5*5*7 lines 1 second 90
*
* 10 81
* horizontal blanking period = (1.5+4.7+.6+2.5+1.6) = 10.9 microseconds per line = ( -- + -- ) microseconds per line
* 90
*
* visible line period = total horizontal line period minus horizontal blanking period =
*
* 52 59
* -- + -- microseconds per line
* 90
*
*
* To avoid the over-scan area, the Apple ][ uses only the middle 75% of the visible line, or 4739/120 microseconds
*
* Apple ][ uses half the clock rate, or 315/44 MHz, to oscillate the video signal.
*
* The result is 315/44 MHz * 4739/120 microseconds/line, rounded down, = 282 full pixel spots across the screen.
* The Apple ][ displays 7 bits per byte hi-res or lo-res, (or 7 pixel-wide characters for text mode), so that
* gives 282/7, which rounds down to 40 bytes per line.
*/
static const int VISIBLE_BYTES_PER_ROW = (int)((((1.0F*(NTSC_COLOR_DROP_FIELD+1)/(NTSC_FIELD_HZ*NTSC_COLOR_DROP_FIELD)*2/NTSC_LINES_PER_FRAME*MEGA)-(1.5+4.7+.6+2.5+1.6)) * 3/4) * (CRYSTAL_HZ/2)) / MEGA / VISIBLE_BITS_PER_BYTE;
/*
* NTSC total lines per frame (525) minus unusable lines (19 plus 20) = 486 usable lines
* To avoid the over-scan area, use the middle 80% of the vertical lines, giving 388 (rounded down) clearly visible lines
* Apple ][ uses only half the vertical resolution because it doesn't interlace, giving 194.
* Text characters are 8 pixels tall, so 194/8 rounded down gives 24 text lines.
* Multiply by 8 to give 192 lines total.
*/
static const int VISIBLE_ROWS_PER_FIELD = (NTSC_LINES_PER_FRAME-(20+19)) * 8/10 / 2 /VISIBLE_LINES_PER_CHARACTER*VISIBLE_LINES_PER_CHARACTER;
static const int BLANKED_BYTES_PER_ROW = BYTES_PER_ROW-VISIBLE_BYTES_PER_ROW;
static const int VISIBLE_BYTES_PER_FIELD = BYTES_PER_ROW*VISIBLE_ROWS_PER_FIELD;
static const int SCANNABLE_ROWS = 0x100;
static const int SCANNABLE_BYTES = SCANNABLE_ROWS*BYTES_PER_ROW;
static const int RESET_ROWS = NTSC_WHOLE_LINES_PER_FIELD-SCANNABLE_ROWS;
static const int RESET_BYTES = RESET_ROWS*BYTES_PER_ROW;
static const int MIXED_TEXT_LINES = 4;
static const int ROWS_PER_TEXT_LINE = 8;
static const int MIXED_TEXT_CYCLE = (VISIBLE_ROWS_PER_FIELD-MIXED_TEXT_LINES*ROWS_PER_TEXT_LINE)*BYTES_PER_ROW;
static int test()
{
if (NTSC_FIELD_HZ!=60) return NTSC_FIELD_HZ;
if (NTSC_LINES_PER_FRAME!=525) return NTSC_LINES_PER_FRAME;
if (NTSC_COLOR_MULTIPLE!=455) return NTSC_COLOR_MULTIPLE;
if (NTSC_COLOR_DROP_FIELD!=1000) return NTSC_COLOR_DROP_FIELD;
if (CRYSTAL_HZ!=14318182) return CRYSTAL_HZ;
if (BYTES_PER_ROW!=65) return BYTES_PER_ROW;
if (AVG_CPU_HZ!=1020484) return AVG_CPU_HZ;
if (BYTES_PER_FIELD!=17030) return BYTES_PER_FIELD;
if (VISIBLE_BYTES_PER_ROW!=40) return VISIBLE_BYTES_PER_ROW;
if (VISIBLE_ROWS_PER_FIELD!=192) return VISIBLE_ROWS_PER_FIELD;
if (RESET_BYTES!=390) return RESET_BYTES;
if (BLANKED_BYTES_PER_ROW!=25) return BLANKED_BYTES_PER_ROW;
if (VISIBLE_BYTES_PER_FIELD!=12480) return VISIBLE_BYTES_PER_FIELD;
if (SCANNABLE_BYTES!=16640) return SCANNABLE_BYTES;
return -1;
}
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "emptyslot.h"

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef EMPTYSLOT_H
#define EMPTYSLOT_H
#include "card.h"
class EmptySlot : public Card
{
public:
EmptySlot() {}
virtual ~EmptySlot() {}
virtual std::string getName() { return "empty"; }
// empty slots have no ROMs, so just return data (for floating bus emulation)
virtual unsigned char readRom(const unsigned short address, const unsigned char data) { return data; }
virtual void readSeventhRom(const unsigned short address, unsigned char* const pb) { }
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "emulator.h"
#include "configep2.h"
#include "e2const.h"
#include <SDL/SDL.h>
#include <ctime>
Emulator::Emulator():
display(screenImage),
videoStatic(display),
apple2(keypresses,paddleButtonStates,display,fhyper,buffered,screenImage),
timable(0), // No ticked object (NULL pointer)
quit(false),
repeat(false),
keysDown(0),
command(false),
pendingCommandExit(false)
{
}
Emulator::~Emulator()
{
}
void Emulator::toggleComputerPower()
{
if (this->timable==&this->videoStatic)
powerOnComputer();
else
powerOffComputer();
}
void Emulator::powerOnComputer()
{
this->apple2.powerOn();
this->screenImage.drawPower(true);
this->display.setNoise(false);
// The apple2 becomes the ticked object
this->timable = &this->apple2;
}
void Emulator::powerOffComputer()
{
// TODO Need to ask user if OK to lose any unsaved changes to disks
this->apple2.powerOff();
this->screenImage.drawPower(false);
this->display.setNoise(true);
this->videoStatic.powerOn();
// The video static becomes the ticked object
this->timable = &this->videoStatic;
}
void Emulator::config(Config& cfg)
{
cfg.parse(this->apple2.ram,this->apple2.rom,this->apple2.slts,this->apple2.revision,this->screenImage,this->apple2.cassette);
}
void Emulator::init()
{
powerOffComputer();
this->display.setType(AnalogTV::MONITOR_COLOR);
this->display.powerOn(true);
}
// How many emulation ticks between asking SDL if there is any new input
// from the user or other GUI events.
// This is also how often we shall update the estimate of the emulator's
// actual speed performance
// When the CPU is the object being ticked (each tick is a CPU cycle), then
// this is 20.04378892 Hz in emulated seconds time
#define CHECK_EVERY_CYCLE 51024
#define CHECK_CYCLES_K 51024000
#define EXPECTED_MS 50
// U.A.2 p. 7-13: REPT key repeats at 10Hz.
static const int CYCLES_PER_REPT(E2Const::AVG_CPU_HZ/10);
// The core of this Apple
int Emulator::run()
{
int skip = CHECK_EVERY_CYCLE;
Uint32 prev_ms = SDL_GetTicks();
// While the user still wants to run this emulation...
while (!this->quit)
{
// (Obligatory protection against NULL object pointer)
if (this->timable)
{
this->timable->tick();
// If the Apple ][ keyboard repeat is on (the REPT key is
// down)...
if (this->repeat)
{
// Count our way down to when the timer for the REPT key
// fires off: 10Hz in terms of how many CPU cycles have gone
// by
--this->rept;
// If it's time for the REPT key timer to fire (at long
// last)...
if (this->rept <= 0)
{
// ...reload the timer for the next firing 1/10 second from
// now ( *reset* the timer )
this->rept = CYCLES_PER_REPT;
// If any other keys are actually being held down...
if (this->keysDown > 0)
{
// ...REPEAT the most recent one that was pressed
this->keypresses.push(this->lastKeyDown);
}
}
}
}
// People who have too many press releases should be referred to as
// keyboards
--skip;
// If skip has been decremented to zero...
if (!skip)
{
// ...then it's time to drain away any piled-up user interaction
// events that SDL has stored up for us
// Reload the skip quantity
skip = CHECK_EVERY_CYCLE;
SDL_Event event;
while (SDL_PollEvent(&event))
{
switch (event.type)
{
// If SDL is going away...
case SDL_QUIT:
this->quit = true;
break;
case SDL_KEYDOWN:
// If we're collecting a command line for changing any
// of the configurables of the emulator...
if (this->command)
cmdKey(event.key);
else
// ...else we're collecting keypresses for the keyboard
// emulation (and thus the Apple ][ emulation itself)
dispatchKeypress(event.key);
break;
case SDL_KEYUP:
// If we're collecting a command line for changing any
// of the configurables of the emulator...
if (this->command)
{
if (this->pendingCommandExit)
{
this->command = false;
this->pendingCommandExit = false;
}
}
else
{
// ...else we're collecting keypresses for the keyboard
// emulation (and thus the Apple ][ emulation itself)
dispatchKeyUp(event.key);
}
break;
}
}
// If we're trying to run as slow as a real Apple ][...
if (!this->fhyper.isHyper())
{
const int delta_ms = EXPECTED_MS-(SDL_GetTicks()-prev_ms);
if (0 < delta_ms && delta_ms <= EXPECTED_MS)
{
SDL_Delay(delta_ms);
}
}
// Display the current estimate of the emulator's actual speed
// performance
this->screenImage.displayHz(CHECK_CYCLES_K/(SDL_GetTicks()-prev_ms));
prev_ms = SDL_GetTicks();
}
}
return 0;
}
void Emulator::dispatchKeyUp(const SDL_KeyboardEvent& keyEvent)
{
unsigned char key = (unsigned char)(keyEvent.keysym.unicode & 0x7F);
SDLKey sym = keyEvent.keysym.sym;
SDLMod mod = keyEvent.keysym.mod;
unsigned char scancode = keyEvent.keysym.scancode;
// printf("key UP: %d sym: %d mod: %04X scn: %d\n",key,sym,mod,scancode);
if ((sym < 0x7F || sym == SDLK_LEFT || sym == SDLK_RIGHT) &&
!(sym == SDLK_TAB || sym == SDLK_BACKQUOTE || sym == '[' || sym == '\\' || sym == SDLK_DELETE) &&
!(sym == ']' && mod&KMOD_SHIFT))
{
--this->keysDown;
}
// ...else if this is the emulated REPT key on the Apple keyboard...
else if (sym == SDLK_F10)
{
// ...stop repeating. The key has been released
this->repeat = false;
this->rept = 0;
}
}
// Take real-world keystrokes from SDL and filter them to emulate the
// Apple ][ or Apple ][ plus keyboard
void Emulator::dispatchKeypress(const SDL_KeyboardEvent& keyEvent)
{
unsigned char key = (unsigned char)(keyEvent.keysym.unicode & 0x7F);
SDLKey sym = keyEvent.keysym.sym;
SDLMod mod = keyEvent.keysym.mod;
unsigned char scancode = keyEvent.keysym.scancode;
// printf("key DN: %d sym: %d mod: %04X scn: %d\n",key,sym,mod,scancode);
if ((sym < 0x7F || sym == SDLK_LEFT || sym == SDLK_RIGHT) &&
!(sym == SDLK_TAB || sym == SDLK_BACKQUOTE || sym == '[' || sym == '\\' || sym == SDLK_DELETE) &&
!(sym == ']' && mod&KMOD_SHIFT))
{
++this->keysDown;
}
if (sym == SDLK_LEFT)
{
key = 8;
}
else if (sym == SDLK_RIGHT)
{
key = 21;
}
else if (sym == SDLK_PAUSE)
{
this->apple2.reset();
return;
}
else if (sym == SDLK_INSERT)
{
// Feed input from the clipboard to the Apple keyboard
std::string s = this->clip.getText();
for (unsigned int i = 0; i < s.length(); ++i)
{
key = s[i];
// TODO fix pasting line-endings
if (key == '\n')
key = '\r';
if ('a' <= key && key <= 'z')
{
key -= 32;
}
this->keypresses.push(key);
}
return;
}
// ...else if this is the emulated REPT key on the Apple keyboard...
else if (sym == SDLK_F10)
{
// ...start auto-repeat
this->repeat = true;
this->rept = CYCLES_PER_REPT;
return;
}
// ...else if the user wants to run at full speed instead of emulating
// the Apple's speed...
else if (sym == SDLK_F11)
{
this->fhyper.toggleHyper();
this->screenImage.toggleHyperLabel();
return;
}
else if (sym == SDLK_F12)
{
this->buffered.toggleBuffered();
this->screenImage.toggleKdbBufferLabel();
return;
}
// ...else if the user has hit the rocker switch on the back of the Apple...
else if (sym == SDLK_F1)
{
toggleComputerPower();
return;
}
// ...else if the user wants to look at a different video display medium...
else if (sym == SDLK_F2)
{
this->display.cycleType();
this->screenImage.cycleDisplayLabel();
return;
}
// ...else if the user wants to switch to/from full screen and an
// individual application window...
else if (sym == SDLK_F3)
{
this->screenImage.toggleFullScreen();
this->screenImage.drawPower(this->timable==&this->apple2);
return;
}
// ...else if the user wants to switch between the interlaced extension
// of the display and the non-interlaced historically correct display...
else if (sym == SDLK_F4)
{
this->display.toggleBleedDown();
this->screenImage.toggleFillLinesLabel();
return;
}
// ...else initiate command line entry at the bottom of the emulator window
else if (sym == SDLK_F5)
{
this->command = true;
this->screenImage.enterCommandMode();
}
// ...else exit the entire emulation
else if (sym == SDLK_END)
{
this->quit = true;
return;
}
// ...else save a screen shot
else if (sym == SDLK_PRINT)
{
this->screenImage.saveBMP();
}
// The unmodified Apple ][ hardware keyboard only generates upper-case
if ('a' <= key && key <= 'z')
{
key -= 32;
}
if ((mod&KMOD_SHIFT) && (mod&KMOD_CTRL) && sym == '2')
{
// Ctrl-Shift-2 == Ctrl-@ == NUL == ASCII: 0
key = 0;
}
else if ((mod&KMOD_SHIFT) && (mod&KMOD_CTRL) && sym == ' ')
{
// Ctrl-Shift-Space is the same as Space
key = ' ';
}
else if ((mod&KMOD_CTRL) && !(mod&KMOD_SHIFT) && SDLK_KP0 <= sym && sym <= SDLK_KP9)
{
// Control-only numeric keypad keys are converted to regular digit keys
key = sym-SDLK_KP0+'0';
}
else if ((mod&KMOD_CTRL) && !(mod&KMOD_SHIFT) && (('0' <= sym && sym <= '9') || sym == '/' || sym == ' '))
{
// Control-only upon 0-9, / and space leaves them unchanged, the
// same as unmodified
key = sym;
}
else if (sym == ']')
{
if (mod&KMOD_SHIFT)
{
// ignore '}' (shift ']')
return;
}
if (mod&KMOD_CTRL)
{
// Ctrl-] == ASCII: $1D
key = 29;
}
}
// ...else if this is one of the keys that can't be typed on an Apple ][
// keyboard...
else if (key == 0 || sym == SDLK_TAB || sym == SDLK_BACKQUOTE || sym == '[' || sym == '\\' || sym == SDLK_DELETE)
{
return;
}
// printf(" sending to apple as ascii------------------------------>%02X (%02X)\n",key,key|0x80);
this->keypresses.push(key);
this->lastKeyDown = key;
}
// Collect and edit a command line typed at the bottom of the emulator
// window
void Emulator::cmdKey(const SDL_KeyboardEvent& keyEvent)
{
unsigned char key = (unsigned char)(keyEvent.keysym.unicode & 0x7F);
SDLKey sym = keyEvent.keysym.sym;
if (sym == SDLK_RETURN)
{
processCommand();
}
else if (sym == SDLK_ESCAPE)
{
cmdline.erase(cmdline.begin(),cmdline.end());
processCommand();
}
else if (sym == SDLK_BACKSPACE)
{
if (cmdline.length())
{
cmdline.erase(cmdline.end()-1);
this->screenImage.backspaceCommand();
}
}
else if (sym == SDLK_INSERT)
{
std::string s = this->clip.getText();
for (unsigned int i = 0; i < s.length(); ++i)
{
key = s[i];
if (key == '\n' || key == '\r')
{
processCommand();
break;
}
else
{
cmdline += key;
this->screenImage.addkeyCommand(key);
}
}
}
else if (key)
{
cmdline += key;
this->screenImage.addkeyCommand(key);
}
}
// Process a command line typed at the bottom of the emulator window
void Emulator::processCommand()
{
this->screenImage.exitCommandMode();
this->pendingCommandExit = true;
if (cmdline.empty())
{
return;
}
Config::parseLine(cmdline,this->apple2.ram,this->apple2.rom,this->apple2.slts,this->apple2.revision,this->screenImage,this->apple2.cassette);
cmdline.erase(cmdline.begin(),cmdline.end());
}

80
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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef EMULATOR_H
#define EMULATOR_H
#include "keyboard.h"
#include "paddlebuttonstates.h"
#include "apple2.h"
#include "videostaticgenerator.h"
#include "screenimage.h"
#include "analogtv.h"
#include "keyboardbuffermode.h"
#include "hypermode.h"
#include "clipboardhandler.h"
class Timable;
class Config;
struct SDL_KeyboardEvent;
class Emulator
{
PaddleButtonStates paddleButtonStates;
KeypressQueue keypresses;
HyperMode fhyper;
KeyboardBufferMode buffered;
ScreenImage screenImage;
AnalogTV display;
VideoStaticGenerator videoStatic;
Apple2 apple2;
ClipboardHandler clip;
Timable* timable;
bool quit;
bool repeat;
int keysDown;
int rept;
unsigned char lastKeyDown;
bool command;
bool pendingCommandExit;
std::string cmdline;
void dispatchKeypress(const SDL_KeyboardEvent& keyEvent);
void dispatchKeyUp(const SDL_KeyboardEvent& keyEvent);
void cmdKey(const SDL_KeyboardEvent& keyEvent);
void processCommand();
public:
Emulator();
virtual ~Emulator();
void config(Config& cfg);
virtual void init();
void powerOnComputer();
void powerOffComputer();
void toggleComputerPower();
void cycleDisplayType();
virtual int run();
};
#endif

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src/firmwarecard.cpp Normal file
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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "firmwarecard.h"
#include "memory.h"
FirmwareCard::FirmwareCard(ScreenImage& gui, int slot):
gui(gui),
slot(slot),
inhibitBankRom(false),
inhibitF8Rom(false),
inhibit(false),
bankRom(0x10000-0xD000)
{
}
FirmwareCard::~FirmwareCard()
{
}
void FirmwareCard::ioBankRom(const unsigned short addr, unsigned char* const pb, const bool)
{
this->inhibit = false;
if (addr < 0x2800)
{
if (this->inhibitBankRom)
{
*pb = this->bankRom.read(addr);
this->inhibit = true;
}
}
else if (0x2800 <= addr && addr < 0x3000)
{
if (this->inhibitF8Rom)
{
*pb = this->bankRom.read(addr);
this->inhibit = true;
}
}
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef FIRMWARECARD_H
#define FIRMWARECARD_H
#include "card.h"
#include "memory.h"
#include "screenimage.h"
class FirmwareCard : public Card
{
private:
ScreenImage& gui;
int slot;
bool inhibitBankRom;
bool inhibitF8Rom;
bool inhibit;
Memory bankRom;
public:
FirmwareCard(ScreenImage& gui, int slot);
~FirmwareCard();
virtual void ioBankRom(const unsigned short addr, unsigned char* const pb, const bool write);
virtual void reset()
{
this->inhibitBankRom = false;
this->inhibitF8Rom = false;
this->gui.setFirmCard(this->slot,this->inhibitBankRom,this->inhibitF8Rom);
}
virtual unsigned char io(const unsigned short address, const unsigned char data, const bool writing)
{
this->inhibitBankRom = !(address & 1);
this->inhibitF8Rom = (address & 2);
this->gui.setFirmCard(this->slot,this->inhibitBankRom,this->inhibitF8Rom);
return data;
}
virtual void loadBankRom(const unsigned short base, std::istream& in)
{
this->bankRom.load(base,in);
}
virtual bool inhibitMotherboardRom()
{
return this->inhibit;
}
virtual std::string getName() { return "firmware "; }
};
#endif

693
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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define FONTW 4
#define FONTH 6
static const char* font3x5 =
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"-@--"
"----"
"-@--"
"----"
"-@--"
"-@--"
"-@--"
"@---"
"@---"
"@---"
"@-@-"
"@@--"
"@-@-"
"----"
"-@--"
"-@--"
"-@--"
"-@--"
"-@--"
"----"
"----"
"----"
"@@@-"
"@@@-"
"@-@-"
"----"
"----"
"----"
"@@--"
"@-@-"
"@-@-"
"----"
"----"
"----"
"-@--"
"@-@-"
"-@--"
"----"
"----"
"----"
"@@--"
"@-@-"
"@@--"
"@---"
"----"
"----"
"-@@-"
"@-@-"
"-@@-"
"--@-"
"----"
"----"
"@@@-"
"@---"
"@---"
"----"
"----"
"----"
"-@@-"
"-@--"
"@@--"
"----"
"----"
"-@--"
"@@@-"
"-@--"
"-@--"
"----"
"----"
"----"
"@-@-"
"@-@-"
"-@@-"
"----"
"----"
"----"
"@-@-"
"@-@-"
"-@--"
"----"
"----"
"----"
"@-@-"
"@@@-"
"@@@-"
"----"
"----"
"----"
"@-@-"
"-@--"
"@-@-"
"----"
"----"
"----"
"@-@-"
"@-@-"
"-@--"
"@---"
"----"
"----"
"@@--"
"-@--"
"-@@-"
"----"
"--@-"
"-@--"
"@@--"
"-@--"
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"----"
"-@--"
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"-@@-"
"-@--"
"@---"
"----"
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"----"
"----"
"----"
"----"
"@@@@"
"@@@@"
"@@@@"
"@@@@"
"@@@@"
"@@@@"
;

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gui.h"
#include <SDL/SDL.h>
// Create, initialize, and cable together the UI objects to serve this
// program
GUI::GUI()
{
const int result = SDL_Init(SDL_INIT_TIMER | SDL_INIT_AUDIO | SDL_INIT_VIDEO);
if (result != 0)
{
throw GUI::NotInitException();
}
SDL_EnableUNICODE(1);
SDL_ShowCursor(0);
SDL_EnableKeyRepeat(0,0);
}
GUI::~GUI()
{
SDL_Quit();
}
GUI::NotInitException::NotInitException() :
runtime_error("Unable to initialize SDL")
{
SDL_GetError();
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GUI_H
#define GUI_H
#include <stdexcept>
class GUI
{
public:
GUI();
~GUI();
class NotInitException : public std::runtime_error
{
public:
NotInitException();
virtual ~NotInitException() throw () {}
};
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "hypermode.h"

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef HYPERMODE_H
#define HYPERMODE_H
class HyperMode
{
private:
bool fhyper;
public:
HyperMode(): fhyper(false) { }
~HyperMode() { }
bool isHyper()
{
return this->fhyper;
}
void setHyper(bool isHyper)
{
this->fhyper = isHyper;
}
void toggleHyper()
{
this->fhyper = !this->fhyper;
}
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "keyboard.h"
#include "hypermode.h"
#include "keyboardbuffermode.h"
Keyboard::Keyboard(KeypressQueue& q, HyperMode& fhyper, KeyboardBufferMode& buffered):
keys(q),
fhyper(fhyper),
buffered(buffered),
cGet(0)
{
}
void Keyboard::clear()
{
this->latch &= 0x7F;
}
unsigned char Keyboard::get()
{
waitIfTooFast();
if (!this->buffered.isBuffered() || !(this->latch & 0x80))
{
if (!this->keys.empty())
{
this->latch = this->keys.front() | 0x80;
this->keys.pop();
}
}
return this->latch;
}
void Keyboard::waitIfTooFast()
{
if (this->fhyper.isHyper())
{
return;
}
++this->cGet;
if (!this->cGet)
{
if (SDL_GetTicks() - this->lastGet <= 1000)
{
/*
* Check every 256 gets to see if they are
* happening too fast (within one second).
* If so, it means we are probably just
* looping waiting for a keypress, so
* wait a millisecond (or so) just to
* prevent us from using 100% of CPU time.
*/
SDL_Delay(1);
}
}
this->lastGet = SDL_GetTicks();
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef KEYBOARD_H
#define KEYBOARD_H
#include <SDL/SDL.h>
#include <queue>
typedef std::queue<unsigned char> KeypressQueue;
class HyperMode;
class KeyboardBufferMode;
class Keyboard
{
private:
KeypressQueue& keys;
HyperMode& fhyper;
KeyboardBufferMode& buffered;
unsigned char latch;
unsigned char cGet;
Uint32 lastGet;
void waitIfTooFast();
public:
Keyboard(KeypressQueue& q, HyperMode& fhyper, KeyboardBufferMode& buffered);
void clear();
unsigned char get();
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "keyboardbuffermode.h"

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef KEYBOARDBUFFERMODE_H
#define KEYBOARDBUFFERMODE_H
class KeyboardBufferMode
{
private:
bool buffered;
public:
KeyboardBufferMode(): buffered(true) { }
~KeyboardBufferMode() { }
bool isBuffered()
{
return this->buffered;
}
void setBuffered(bool buffered)
{
this->buffered = buffered;
}
void toggleBuffered()
{
this->buffered = !this->buffered;
}
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "languagecard.h"
#include "screenimage.h"
LanguageCard::LanguageCard(ScreenImage& gui, int slot):
gui(gui),
slot(slot),
inhibit(false),
ramTop(0x10000-0xE000),
bank(1),
readEnable(false),
writeEnable(true),
writeCount(0)
{
this->ramBank.push_back(new Memory(0xE000-0xD000));
this->ramBank.push_back(new Memory(0xE000-0xD000));
}
LanguageCard::~LanguageCard()
{
}
unsigned char LanguageCard::io(const unsigned short address, const unsigned char data, const bool writing)
{
if ((address & 1) && !writing)
{
++this->writeCount;
}
else
{
this->writeCount = 0;
}
if (this->writeCount > 1)
{
this->writeEnable = true;
}
if (!(address & 1))
{
this->writeEnable = false;
}
const int r = address & 3;
this->readEnable = (r==0 || r==3);
this->bank = !(address & 8);
this->gui.setLangCard(this->slot,this->readEnable,this->writeEnable,this->bank);
return data;
}
void LanguageCard::ioBankRom(const unsigned short addr, unsigned char* const pb, const bool write)
{
this->inhibit = false;
if (this->readEnable && !write)
{
if (addr < 0x1000)
{
*pb = this->ramBank[this->bank]->read(addr);
}
else
{
*pb = this->ramTop.read(addr-0x1000);
}
this->inhibit = true;
}
else if (this->writeEnable && write)
{
if (addr < 0x1000)
{
this->ramBank[this->bank]->write(addr,*pb);
}
else
{
this->ramTop.write(addr-0x1000,*pb);
}
}
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LANGUAGECARD_H
#define LANGUAGECARD_H
#include "card.h"
#include "memory.h"
#include <vector>
class ScreenImage;
class LanguageCard : public Card
{
private:
ScreenImage& gui;
int slot;
bool inhibit;
std::vector<Memory*> ramBank;
Memory ramTop;
unsigned char bank;
bool readEnable;
bool writeEnable;
unsigned char writeCount;
public:
LanguageCard(ScreenImage& gui, int slot);
~LanguageCard();
virtual void reset() { /* does nothing */ }
virtual bool inhibitMotherboardRom() { return this->inhibit; }
virtual unsigned char io(const unsigned short address, const unsigned char data, const bool writing);
virtual void ioBankRom(const unsigned short addr, unsigned char* const pb, const bool write);
virtual std::string getName() { return "language W B2"; }
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "lowpass_1_5_mhz.h"

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LOWPASS_1_5_MHZ_H
#define LOWPASS_1_5_MHZ_H
/*
Generated by the utility at http://www-users.cs.york.ac.uk/~fisher/mkfilter
then hand modified by Chris Mosher.
*/
class Lowpass_1_5_MHz
{
public:
Lowpass_1_5_MHz()
{
x[0] = x[1] = x[2] = 0;
y[0] = y[1] = y[2] = y[3] = y[4] = 0;
}
~Lowpass_1_5_MHz() { }
int x[3];
int y[5];
int next(const int v)
{
x[0] = x[1]; x[1] = x[2];
x[2] = v >> 3;
y[0] = y[1]; y[1] = y[2]; y[2] = y[3]; y[3] = y[4];
y[4] = x[0]+x[2]+(y[1]>>2)-y[2]+y[3]+(y[3]>>1);
return y[4];
}
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "lowpass_3_58_mhz.h"

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LOWPASS_3_58_MHZ_H
#define LOWPASS_3_58_MHZ_H
/*
Generated by the utility at http://www-users.cs.york.ac.uk/~fisher/mkfilter
then hand modified by Chris Mosher.
*/
class Lowpass_3_58_MHz
{
int x[5];
int y[5];
public:
Lowpass_3_58_MHz()
{
x[0] = x[1] = x[2] = x[3] = x[4] = 0;
y[0] = y[1] = y[2] = y[3] = y[4] = 0;
}
~Lowpass_3_58_MHz() { }
int next(const int v)
{
x[0] = x[1]; x[1] = x[2]; x[2] = x[3]; x[3] = x[4];
x[4] = v/6;
y[0] = y[1]; y[1] = y[2]; y[2] = y[3]; y[3] = y[4];
y[4] = x[0]+x[4]+((x[1]+x[2]+x[3])<<1)-(y[3]>>2);
return y[4];
}
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "emulator.h"
#include "configep2.h"
#include "gui.h"
#include "e2const.h"
#include <string>
#include <memory>
#include <stdexcept>
#include <iostream>
static int run(const std::string& config_file)
{
GUI gui;
std::auto_ptr<Emulator> emu(new Emulator());
Config cfg(config_file);
emu->config(cfg);
emu->init();
return emu->run();
}
int main(int argc, char* argv[])
{
if (argc > 2)
{
throw std::runtime_error("usage: epple2 [config-file]" );
}
int x = E2Const::test();
if (x != -1)
{
std::cerr << x << std::endl;
throw std::runtime_error("bad constant in e2const.h" );
}
std::string config_file;
if (argc > 1)
{
config_file = argv[1];
}
return run(config_file);
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "memory.h"
#include <vector>
#include <algorithm>
#include <istream>
#include "raminitializer.h"
const int Memory::CLEAR_VALUE(0);
Memory::Memory(const size_t n):
bytes(n)
{
}
void Memory::clear()
{
std::fill(this->bytes.begin(),this->bytes.end(),CLEAR_VALUE);
}
void Memory::powerOn()
{
RAMInitializer initRam(*this);
initRam.init();
}
void Memory::powerOff()
{
clear();
}
void Memory::load(const unsigned short base, std::istream& in)
{
in.read((char*)&this->bytes[base],this->bytes.size()-base);
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MEMORY_H
#define MEMORY_H
#include <vector>
#include <istream>
class Memory
{
private:
std::vector<unsigned char> bytes;
static const int CLEAR_VALUE;
public:
Memory(const size_t n);
size_t size() const
{
return this->bytes.size();
}
unsigned char read(const unsigned short address) const
{
return this->bytes[address];
}
void write(const unsigned short address, const unsigned char data)
{
this->bytes[address] = data;
}
void clear();
void powerOn();
void powerOff();
void load(const unsigned short base, std::istream& in);
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "paddlebuttonstates.h"
#include <SDL/SDL.h>
const int PaddleButtonStates::PADDLE_COUNT(3);
PaddleButtonStates::PaddleButtonStates()
{
}
PaddleButtonStates::~PaddleButtonStates()
{
}
bool PaddleButtonStates::isDown(const int paddle)
{
if (paddle < 0 || PADDLE_COUNT <= paddle)
{
return false;
}
unsigned char btn = SDL_GetMouseState(0,0);
if (paddle==0)
return btn&SDL_BUTTON_LMASK;
if (paddle==1)
return btn&SDL_BUTTON_RMASK;
return btn&SDL_BUTTON_MMASK;
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PADDLEBUTTONSTATES_H
#define PADDLEBUTTONSTATES_H
#include <vector>
class PaddleButtonStates
{
static const int PADDLE_COUNT;
public:
PaddleButtonStates();
~PaddleButtonStates();
bool isDown(const int paddle);
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "e2const.h"
#include "paddles.h"
#include <SDL/SDL.h>
#include <iostream>
#include <ostream>
Paddles::Paddles():
rTick(PADDLE_COUNT)
{
}
Paddles::~Paddles()
{
}
void Paddles::tick()
{
for (int paddle = 0; paddle < PADDLE_COUNT; ++paddle)
{
if (this->rTick[paddle] > 0)
--this->rTick[paddle];
}
}
void Paddles::startTimers()
{
try
{
tryStartPaddleTimers();
}
catch (...)
{
std::cerr << "Warning: cannot start paddle timers; mouse will not function as paddles." << std::endl;
}
}
void Paddles::tryStartPaddleTimers()
{
int x, y;
SDL_GetMouseState(&x,&y);
double pMin = 0;
double pMax = 500;
x = (int)((x-pMin)/(pMax-pMin)*PADDLE_CYCLES+.5);
y = (int)((y-pMin)/(pMax-pMin)*PADDLE_CYCLES+.5);
if (isTimedOut(0))
this->rTick[0] = x;
if (isTimedOut(1))
this->rTick[1] = y;
/*
Here we emulate having 4700 ohm across pins 7 and 1
of the game controller, and a 47Kohm resistor acros
pins 11 and 1, to give cheap real-time clocks at
paddles 2 and 3. Paddle 2 is the 100 microsecond reference,
and paddle 3 is the 1 millisecond reference. This is
described in U.A.2, p. 7-33.
*/
if (isTimedOut(2))
this->rTick[2] = E2Const::AVG_CPU_HZ/10000; // was 90, but why?
if (isTimedOut(3))
this->rTick[3] = E2Const::AVG_CPU_HZ/1000;
}
bool Paddles::isTimedOut(const int paddle)
{
if (paddle < 0 || PADDLE_COUNT <= paddle)
{
return false;
}
return this->rTick[paddle] <= 0;
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PADDLES_H
#define PADDLES_H
#include <vector>
class Paddles
{
private:
std::vector<int> rTick;
enum { PADDLE_COUNT = 4 };
enum { PADDLE_CYCLES = 2805 }; // TODO: document where PADDLE_CYCLES==2805 came from
void tryStartPaddleTimers();
public:
Paddles();
~Paddles();
void tick();
void startTimers();
bool isTimedOut(const int paddle);
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "picturegenerator.h"
#include "analogtv.h"
#include "videomode.h"
#include "applentsc.h"
#include "e2const.h"
PictureGenerator::PictureGenerator(AnalogTV& display, VideoMode& mode, const int& revision):
display(display), mode(mode), itestsig(testsig), itestsiglim(testsig+AppleNTSC::SIGNAL_LEN),
VISIBLE_X_OFFSET(E2Const::BYTES_PER_ROW-E2Const::VISIBLE_BYTES_PER_ROW),
revision(revision)
{
}
PictureGenerator::~PictureGenerator()
{
}
void PictureGenerator::powerOn()
{
this->hpos = 0;
this->line = 0;
this->display.signal = this->testsig;
this->itestsig = this->testsig;
}
void inline PictureGenerator::shiftLoRes()
{
/*
* For byte ABCDEFGH in register, perform
* the following 4-bit end-around shifts:
*
* +---<----+ +---<----+
* | | | |
* +->ABCD->+ +->EFGH->+
*
* Therefore:
*
* ABCDEFGH --> DABCHEFG
*/
unsigned char rot_bits = this->latchGraphics & 0x11;
// 000D000H
rot_bits <<= 3;
// D000H000
this->latchGraphics &= 0xEE;
// ABC0EFG0
this->latchGraphics >>= 1;
// 0ABC0EFG
this->latchGraphics |= rot_bits;
// DABCHEFG
}
void inline PictureGenerator::shiftHiRes()
{
/*
* For byte ABCDEFGH in register, perform
* the following shift:
*
* +---<----+
* | |
* +->ABCD->+--->EFGH->
*
* Therefore:
*
* ABCDEFGH --> DABCDEFG
*/
unsigned char rot_bits = this->latchGraphics & 0x10;
// 000D0000
rot_bits <<= 3;
// D0000000
this->latchGraphics >>= 1;
// 0ABCDEFG
this->latchGraphics |= rot_bits;
// DABCDEFG
}
void inline PictureGenerator::shiftText()
{
this->latchText >>= 1;
}
bool inline PictureGenerator::getTextBit()
{
return this->latchText & 1;
}
bool inline PictureGenerator::getHiResBit()
{
return this->latchGraphics & 1;
}
bool inline PictureGenerator::getLoResBit(const bool odd, const bool vc)
{
const int nibble = (this->latchGraphics >> (vc ? 4 : 0)) & 0x0F;
return (nibble >> (odd ? 2 : 0)) & 1;
}
void inline PictureGenerator::loadGraphics(const unsigned char value)
{
this->latchGraphics = value;
this->d7 = this->latchGraphics & 0x80;
}
void inline PictureGenerator::loadText(const int value)
{
this->latchText = value;
}
// TODO can we hand-optimize the main picture generator algorithm any more?
// Note that the innermost loop (which calls writeVideoSignal) has to execute
// at 14MHz, in order to maintain authentic Apple ][ speed.
void PictureGenerator::tick(const int t, const unsigned char rowToPlot)
{
const bool isText(this->mode.isDisplayingText(t));
const bool isHiRes(this->mode.isHiRes());
signed char* is = this->itestsig;
if (isText)
loadText(rowToPlot);
else
loadGraphics(rowToPlot);
if (t==0)
{
this->line = 0;
}
int cycles = E2Const::CRYSTAL_CYCLES_PER_CPU_CYCLE;
if (this->hpos == E2Const::HORIZ_CYCLES-1)
{
cycles += E2Const::EXTRA_CRYSTAL_CYCLES_PER_CPU_LONG_CYCLE;
}
// hi-res half-pixel shift:
const bool shift = !isText && isHiRes && this->d7 && this->line < E2Const::VISIBLE_ROWS_PER_FIELD && !(this->hpos < VISIBLE_X_OFFSET) && this->revision > 0;
const bool showLastHiRes = shift && this->lasthires;
int xtra(0);
if (shift)
{
--cycles;
++xtra;
}
const int firstBlankedCycle(E2Const::CRYSTAL_CYCLES_PER_CPU_CYCLE-xtra);
int hcycle(this->hpos*E2Const::CRYSTAL_CYCLES_PER_CPU_CYCLE);
const bool lineVis(this->line < E2Const::VISIBLE_ROWS_PER_FIELD);
const bool hVis(this->hpos >= VISIBLE_X_OFFSET);
for (int cycle(0); cycle < cycles-1; ++cycle)
{
const bool bit = shiftLatch(t,cycle,isText,isHiRes);
is = writeVideoSignal(shift,showLastHiRes,firstBlankedCycle,cycle,hcycle,bit,lineVis,hVis,is);
++hcycle;
}
// optimization: pull the last iteration of the loop out, so we don't getHiResBit every time
{
this->lasthires = getHiResBit(); // save it for the next plotted byte, just in case we need it
const int cycle = cycles-1;
const bool bit = shiftLatch(t,cycle,isText,isHiRes);
is = writeVideoSignal(shift,showLastHiRes,firstBlankedCycle,cycle,hcycle,bit,lineVis,hVis,is);
}
this->itestsig = is;
++this->hpos;
if (this->hpos >= E2Const::HORIZ_CYCLES)
{
this->hpos = 0;
++this->line;
if (this->itestsig >= this->itestsiglim)
{
this->itestsig = this->testsig;
this->display.drawCurrent();
}
}
}
bool inline PictureGenerator::shiftLatch(const int t, const int cycle, const bool isText, const bool isHiRes)
{
bool bit;
if (isText)
{
bit = getTextBit();
if (cycle & 1) // @ 7MHz
{
shiftText();
}
}
else if (isHiRes)
{
bit = getHiResBit();
if (cycle & 1) // @ 7MHz
{
shiftHiRes();
}
}
else // LO-RES
{
const int y = t / E2Const::BYTES_PER_ROW;
bit = getLoResBit((t & 1) == (this->line & 1), y & 4);
shiftLoRes();
}
return bit;
}
inline signed char* PictureGenerator::writeVideoSignal(const bool shift, const bool showLastHiRes, const int firstBlankedCycle, const int cycle, const int hcycle, const bool bit, const bool lineVis, const bool hVis, signed char* is)
{
if (shift && !cycle)
{
*is++ = showLastHiRes ? AppleNTSC::WHITE_LEVEL : AppleNTSC::BLANK_LEVEL;
}
signed char sig;
if (lineVis)
{
if (hVis)
{
if (bit && cycle < firstBlankedCycle)
{
sig = AppleNTSC::WHITE_LEVEL;
}
else
{
sig = AppleNTSC::BLANK_LEVEL;
}
}
else
{
sig = hbl(hcycle);
}
}
else
{
sig = vbl(hcycle);
}
*is++ = sig;
return is;
}
// TODO Just to be extremely accurate, fix picture signal values during HBL and VBL
// (note that they vary by motherboard revision... there is a whole section in U.A.2)
signed char inline PictureGenerator::vbl(const int hcycle)
{
signed char sig;
if (224 <= this->line && this->line < 240) // VSYNC // TODO symbolize constants
{
sig = AppleNTSC::SYNC_LEVEL;
}
else
{
if (AppleNTSC::SYNC_START <= hcycle && hcycle < AppleNTSC::BP_START)
{
sig = AppleNTSC::SYNC_LEVEL;
}
else
{
sig = AppleNTSC::BLANK_LEVEL;
}
}
return sig;
}
// Set up the color burst signal.
// TODO confirm that color burst signal phase is correct
// Note, I believe this is the correct phase. The only other
// possible configuration would be +10,-10,-10,+10. Can anyone confirm
// that 0,-20,0,+20 gives the correct phase? By eye, it seems
// +10,-10,-10,+10 makes brown look too green, but 0,-20,0,+20
// makes hi-res blue look too light.
// Note that this color burst signal only affects "old TV" mode;
// the other color modes use A2ColorsObserved.
const signed char PictureGenerator::lutCB[] =
{
0,
-AppleNTSC::CB_LEVEL,
0,
+AppleNTSC::CB_LEVEL,
};
signed char inline PictureGenerator::hbl(const int hcycle)
{
signed char cb;
if (AppleNTSC::CB_START <= hcycle && hcycle < AppleNTSC::CB_END)
{
if (this->mode.isText() && this->revision > 0)
{
cb = AppleNTSC::BLANK_LEVEL;
}
else
{
cb = lutCB[(hcycle-AppleNTSC::CB_START)%4];
}
}
else if (AppleNTSC::SYNC_START <= hcycle && hcycle < AppleNTSC::BP_START)
{
cb = AppleNTSC::SYNC_LEVEL;
}
else
{
cb = AppleNTSC::BLANK_LEVEL;
}
return cb;
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PICTUREGENERATOR_H
#define PICTUREGENERATOR_H
#include "applentsc.h"
class AnalogTV;
class VideoMode;
class PictureGenerator
{
private:
AnalogTV& display;
VideoMode& mode;
unsigned char latchGraphics;
bool d7;
unsigned char latchText;
unsigned int hpos;
unsigned int line;
bool lasthires;
static const signed char lutCB[];
signed char testsig[AppleNTSC::SIGNAL_LEN];
signed char* itestsig;
signed char* itestsiglim;
void shiftLoRes();
void shiftHiRes();
void shiftText();
bool getTextBit();
bool getHiResBit();
bool getLoResBit(const bool odd, const bool vc);
void loadGraphics(const unsigned char value);
void loadText(const int value);
bool shiftLatch(const int t, const int cycle, const bool isText, const bool isHiRes);
signed char* writeVideoSignal(const bool shift, const bool showLastHiRes, const int firstBlankedCycle, const int cycle, const int hcycle, const bool bit, const bool lineVis, const bool hVis, signed char* is);
signed char vbl(const int hcycle);
signed char hbl(const int hcycle);
const unsigned int VISIBLE_X_OFFSET;
const int& revision;
public:
PictureGenerator(AnalogTV& display, VideoMode& mode, const int& revision);
~PictureGenerator();
void powerOn();
void tick(const int t, const unsigned char c);
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "powerupreset.h"
#include "apple2.h"
#include "e2const.h"
PowerUpReset::PowerUpReset(Apple2& apple):
apple(apple)
{
}
PowerUpReset::~PowerUpReset()
{
}
void PowerUpReset::tick()
{
if (this->pendingTicks > 0)
{
--this->pendingTicks;
if (this->pendingTicks == 0)
{
this->apple.reset();
}
}
}
void PowerUpReset::powerOn()
{
this->pendingTicks = (int)(E2Const::AVG_CPU_HZ*.3); // U.A.II, p. 7-15
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef POWERUPRESET_H
#define POWERUPRESET_H
class Apple2;
class PowerUpReset
{
private:
Apple2& apple;
int pendingTicks;
public:
PowerUpReset(Apple2& apple);
~PowerUpReset();
void powerOn();
void tick();
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "raminitializer.h"
#include "memory.h"
#include <ctime>
#include <cstdlib>
RAMInitializer::RAMInitializer(Memory& mem):
ram(mem)
{
srand(time(0));
}
void RAMInitializer::init()
{
this->ram.clear();
int b(0);
// TODO make the types of RAM chips configurable
putBytesUntilFull(b++,1);
putBytesUntilFull(b++,2);
putBytesUntilFull(b++,1);
putBytesUntilFull(b++,2);
putBytesUntilFull(b++,1);
putBytesUntilFull(b++,2);
putBytesUntilFull(b++,2);
putBytesUntilFull(b++,1);
};
void RAMInitializer::putBytesUntilFull(int bit, int pat)
{
this->nextinit = 0;
try
{
while (true)
{
if (pat==1)
ramPattern1(bit);
else
ramPattern2(bit);
}
}
catch (const done&)
{
// done filling this bit in RAM
}
}
void RAMInitializer::ramPattern1(const int bit) throw (done)
{
for (int k = 0; k < 2; ++k)
{
for (int j = 0; j < 8; ++j)
{
int i;
for (i = 0; i < 0x10; ++i)
{
putn(4,false,bit);
putn(2,true,bit);
putn(2,false,bit);
}
for (i = 0; i < 0x40; ++i)
{
putn(2,true,bit);
putn(2,false,bit);
}
for (i = 0; i < 0x08; ++i)
{
putn(2,true,bit);
putn(1,false,bit);
putn(3,true,bit);
putn(2,false,bit);
putn(2,true,bit);
putn(2,false,bit);
putn(2,true,bit);
putn(2,false,bit);
}
}
for (int i = 0; i < 0x400; ++i)
{
putn(2,true,bit);
putn(2,false,bit);
}
}
}
void RAMInitializer::ramPattern2(const int bit) throw (done)
{
for (int i = 0; i < 0x40; ++i)
{
putn(0x80,true,bit);
putn(0x80,false,bit);
}
}
void RAMInitializer::putn(const int c, bool on, const int bit) throw (done)
{
if (((rand() >> 9) & 0x1F) == 5)
on = !on;
const unsigned char mask(1 << bit);
for (int i = 0; i < c; ++i)
{
if (this->nextinit >= this->ram.size())
{
throw done();
}
unsigned char b = this->ram.read(this->nextinit);
if (on)
{
b |= mask;
}
else
{
b &= ~mask;
}
this->ram.write(this->nextinit,b);
++this->nextinit;
}
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef RAMINITIALIZER_H
#define RAMINITIALIZER_H
class Memory;
class RAMInitializer
{
private:
class done {};
Memory& ram;
unsigned short nextinit;
void putBytesUntilFull(int bit, int pat);
void ramPattern1(const int bit) throw (done);
void ramPattern2(const int bit) throw (done);
void putn(const int c, bool on, const int bit) throw (done);
public:
RAMInitializer(Memory& mem);
void init();
};
#endif

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "screenimage.h"
#include "e2const.h"
#include "applentsc.h"
#include "card.h"
#include "util.h"
#include <SDL/SDL.h>
#include <ctime>
#include <sstream>
static const char* power =
" @@@@ @@@ @ @ @ @@@@@ @@@@ "
" @ @ @ @ @ @ @ @ @ @ @"
" @ @ @ @ @ @ @ @ @ @ @"
" @@@@ @ @ @ @ @ @ @@@@@ @@@@ "
" @ @ @ @ @ @ @ @ @ @ "
" @ @ @ @ @ @ @ @ @ @ "
" @ @@@ @ @ @@@@@ @ @";
#define POWERD 56
#define LABEL_Y 24
#define ON_CLR 0xF0D050
#define OFF_CLR 0x807870
#define SCRW 640
#define SCRH 480
static const int HEIGHT = E2Const::VISIBLE_ROWS_PER_FIELD*2;
static const int WIDTH = AppleNTSC::H-AppleNTSC::PIC_START-2;
#include "font3x5.h"
class ScreenException { };
ScreenImage::ScreenImage():
fullscreen(false),
hyper(false),
buffer(true),
fillLines(false),
display(AnalogTV::MONITOR_COLOR),
slotnames(8),
cassettename(32,' ')
{
createScreen();
}
void ScreenImage::toggleFullScreen()
{
this->fullscreen = !this->fullscreen;
createScreen();
}
void ScreenImage::createScreen()
{
this->screen = SDL_SetVideoMode(SCRW,SCRH,32,SDL_HWSURFACE|SDL_HWPALETTE|(this->fullscreen?SDL_FULLSCREEN:0));
if (this->screen == NULL)
{
printf("Unable to set video mode: %s\n",SDL_GetError());
throw ScreenException();
};
if (this->screen->pitch/4 != SCRW)
{
printf("Cannot set video screen pitch to 640*4 pixels (gets set to %d)\n",this->screen->pitch);
throw ScreenException();
};
drawLabels();
notifyObservers();
}
void ScreenImage::drawLabels()
{
drawText("EPPLE ][",0,141);
drawSlots();
drawCassette();
drawFnKeys();
}
void ScreenImage::drawSlots()
{
int r(65);
int c(17);
drawText("SLOTS:",r++,c);
for (int slot(0); slot < 8; ++slot)
{
drawSlot(slot,r++,c);
}
}
void ScreenImage::drawSlot(int slot, int r, int c)
{
drawChar('0'+slot,r,c++);
drawChar(':',r,c++);
drawChar(' ',r,c++);
drawText(this->slotnames[slot],r,c);
const int len = this->slotnames[slot].length();
if (len < 100)
{
drawText(std::string(100-len,' '),r,c+len);
}
}
void ScreenImage::drawCassette()
{
int r(65);
int c(85);
drawText("CASSETTE:",r,c);
c += 9;
drawText(this->cassettename,r,c);
const int len = this->cassettename.length();
if (len < 40)
{
drawText(std::string(40-len,' '),r,c+len);
}
}
static const char* displays[] =
{
"COLOR MONITOR ",
"WHITE MONITOR ",
"GREEN MONITOR ",
"ORANGE MONITOR",
"OLD COLOR TV ",
"OLD B & W TV ",
"NEW COLOR TV ",
"NEW B & W TV ",
};
void ScreenImage::drawFnKeys()
{
int r(76);
int c(1);
drawText(
" FULLSCRN SCAN-LINES KEYBOARD",r++,c);
drawText(
" XXXXXXXXXXXXXX WINDOW FILL-LINES CMD REPT HYPER BUFFER RESET PASTE SAVE BMP QUIT!",r++,c);
drawText(
" F1 F2 F3 F4 F5 F10 F11 F12 Break Insert PrintScreen End",r++,c);
if (this->fullscreen)
invertText(76,32,42); // FULLSCRN
else
invertText(77,32,40); // WINDOW
if (this->fillLines)
invertText(77,43,55); // FILL-LINES
else
invertText(76,43,55); // SCAN-LINES
if (this->hyper)
invertText(77,67,74); // HYPER
if (this->buffer)
invertText(77,75,83); // BUFFER
drawDisplayLabel();
}
void ScreenImage::toggleFillLinesLabel()
{
this->fillLines = !this->fillLines;
invertText(76,43,55); // SCAN-LINES
invertText(77,43,55); // FILL-LINES
}
void ScreenImage::drawDisplayLabel()
{
const char* label = displays[(int)(this->display)];
drawText(label,77,17);
}
void ScreenImage::cycleDisplayLabel()
{
this->display = (AnalogTV::DisplayType)((((int)this->display)+1)%AnalogTV::NUM_DISPLAY_TYPES);
drawDisplayLabel();
}
void ScreenImage::toggleHyperLabel()
{
this->hyper = !this->hyper;
invertText(77,67,74); // HYPER
}
void ScreenImage::toggleKdbBufferLabel()
{
this->buffer = !this->buffer;
invertText(77,75,83); // BUFFER
}
void ScreenImage::invertText(int row, int begincol, int endcol)
{
unsigned int* pn = (unsigned int*)this->screen->pixels;
pn += row*FONTH*SCRW+begincol*FONTW;
const int dc = (endcol-begincol)*FONTW;
for (int ir = 0; ir < FONTH; ++ir)
{
for (int ic = 0; ic < dc; ++ic)
{
*pn = ~*pn;
++pn;
}
pn -= dc;
pn += SCRW;
}
}
void ScreenImage::drawText(const std::string& text, int row, int col, int color, int bgcolor)
{
for (std::string::const_iterator i = text.begin(); i != text.end(); ++i)
{
char c = (*i) & 0x7F;
if (0 <= c && c < 0x20)
c += 0x40;
drawChar(c,row,col++,color,bgcolor);
}
}
void ScreenImage::drawChar(const char ch, int row, int col, int color, int bgcolor)
{
if (!(0 <= row && row < SCRH/6 && 0 <= col && col < SCRW/4))
{
printf("bad text plotting (r %d, c %d): \"%c\"\n",row,col,ch);
}
unsigned int* pn = (unsigned int*)this->screen->pixels;
pn += row*FONTH*SCRW+col*FONTW;
const char* pt = font3x5+FONTH*FONTW*(ch-0x20);
for (int r = 0; r < FONTH; ++r)
{
for (int c = 0; c < FONTW; ++c)
{
*pn++ = *pt++ == '@' ? color : bgcolor;
}
pn -= FONTW;
pn += SCRW;
}
SDL_UpdateRect(this->screen,col*FONTW,row*FONTH,(col+1)*FONTW,(row+1)*FONTH);
}
void ScreenImage::displayHz(int hz)
{
char s[20];
sprintf(s,"%4.2f MHz ",hz/1e6);
drawText(s,3,141);
}
void ScreenImage::drawPower(bool on)
{
unsigned int* pn = (unsigned int*)this->screen->pixels;
pn += (HEIGHT+5)*(this->screen->pitch/4)+5;
for (int r = 0; r < POWERD; ++r)
{
if (r < LABEL_Y || LABEL_Y+7 <= r)
{
for (int c = 0; c < POWERD; ++c)
{
*pn++ = on ? ON_CLR : OFF_CLR;
}
}
else
{
{
for (int c = 0; c < 8; ++c)
{
*pn++ = on ? ON_CLR : OFF_CLR;
}
}
for (const char* ppow = power+(r-(LABEL_Y))*40; ppow < power+(r-(LABEL_Y-1))*40; ++ppow)
{
if (*ppow == '@')
*pn++ = 0;
else
*pn++ = on ? ON_CLR : OFF_CLR;
}
{
for (int c = 0; c < 8; ++c)
{
*pn++ = on ? ON_CLR : OFF_CLR;
}
}
}
pn -= POWERD;
pn += this->screen->pitch/4;
}
SDL_UpdateRect(this->screen,0,HEIGHT,POWERD,HEIGHT+POWERD);
}
ScreenImage::~ScreenImage()
{
}
void ScreenImage::notifyObservers()
{
SDL_UpdateRect(this->screen,0,0,SCRW,SCRH);
}
void ScreenImage::setElem(unsigned int i, const unsigned int val)
{
unsigned int* pn = (unsigned int*)this->screen->pixels;
i += (i/WIDTH)*(SCRW-WIDTH);
pn += i;
*pn = val;
}
void ScreenImage::blank()
{
for (int r = 0; r < HEIGHT; ++r)
{
memset((char*)(this->screen->pixels)+r*SCRW*4,0,WIDTH*4);
}
}
void ScreenImage::enterCommandMode()
{
int r(76);
int c(1);
unsigned int* pn = (unsigned int*)this->screen->pixels;
pn += r*FONTH*SCRW+c*FONTW;
memset((char*)pn,0,SCRW*4*FONTH*3);
drawText("command: ",78,1);
this->cmdpos = 9;
notifyObservers();
}
void ScreenImage::exitCommandMode()
{
drawFnKeys();
notifyObservers();
}
void ScreenImage::addkeyCommand(unsigned char key)
{
++this->cmdpos;
drawChar((char)key,78,this->cmdpos);
}
void ScreenImage::backspaceCommand()
{
drawChar(' ',78,this->cmdpos);
--this->cmdpos;
}
void ScreenImage::updateSlotName(const int slot, Card* card)
{
int r(66+slot);
int c(20);
const std::string& name = card->getName();
this->slotnames[slot] = name;
drawText(std::string(80,' '),r,c);
drawText(name,r,c);
}
void ScreenImage::removeCard(const int slot, Card* card /* empty */)
{
updateSlotName(slot,card);
}
/*
1 2 3 4 5 6 7 8
789012345678901234567890123456789012345678901234567890123456789012345
6: disk][ drive 1M*filename.nib T$FF drive 2M*filename.nib T$FF
*/
void ScreenImage::setDiskFile(int slot, int drive, const std::string& filepath)
{
std::string f = truncateFilePath(filepath);
int r(66+slot);
int c(37+32*drive);
drawText(f,r,c);
const int dlen = 12 - f.length();
if (dlen > 0)
{
std::string d(dlen,' ');
drawText(d,r,c+f.length());
}
this->slotnames[slot].replace(c-20,12,12,' ');
this->slotnames[slot].replace(c-20,f.length(),f);
}
std::string ScreenImage::truncateFilePath(const std::string& filepath)
{
std::string f(filepath);
size_t slash = f.find_last_of("/\\");
if (slash != std::string::npos)
{
f = f.substr(slash+1);
}
if (f.length() > 12)
{
f = f.substr(0,12);
}
return f;
}
void ScreenImage::clearCurrentDrive(int slot, int drive)
{
int r(66+slot);
int c(35+32*drive);
drawChar(' ',r,c);
this->slotnames[slot][c-20] = ' ';
c += 15;
drawText(" ",r,c);
this->slotnames[slot].replace(c-20,4,4,' ');
}
void ScreenImage::setCurrentDrive(int slot, int drive, int track, bool on)
{
int r(66+slot);
int c(35+32*drive);
drawChar(' ',r,c,0xFFFFFF,on?0xFF0000:0);
c += 15;
drawChar('T',r,c);
this->slotnames[slot][c-20] = 'T';
++c;
drawChar('$',r,c);
this->slotnames[slot][c-20] = '$';
++c;
char nibh = Util::hexDigit((((unsigned char)track) >> 4) & 0xF);
drawChar(nibh,r,c);
this->slotnames[slot][c-20] = nibh;
++c;
char nibl = Util::hexDigit((unsigned char)track & 0xF);
drawChar(nibl,r,c);
this->slotnames[slot][c-20] = nibl;
}
void ScreenImage::setTrack(int slot, int drive, int track)
{
int r(66+slot);
int c(52+32*drive);
char nibh = Util::hexDigit((((unsigned char)track) >> 4) & 0xF);
drawChar(nibh,r,c);
this->slotnames[slot][c-20] = nibh;
++c;
char nibl = Util::hexDigit((unsigned char)track & 0xF);
drawChar(nibl,r,c);
this->slotnames[slot][c-20] = nibl;
}
void ScreenImage::setIO(int slot, int drive, bool on)
{
int r(66+slot);
int c(35+32*drive);
drawChar(' ',r,c,0xFFFFFF,on?0xFF0000:0);
}
void ScreenImage::setDirty(int slot, int drive, bool dirty)
{
int r(66+slot);
int c(36+32*drive);
drawChar(dirty?'*':' ',r,c);
this->slotnames[slot][c-20] = dirty?'*':' ';
}
void ScreenImage::setCassetteFile(const std::string& filepath)
{
std::string f = truncateFilePath(filepath);
int r(65);
int c(85+11);
drawText(f,r,c);
const int dlen = 12 - f.length();
if (dlen > 0)
{
std::string d(dlen,' ');
drawText(d,r,c+f.length());
}
this->cassettename.replace(c-94,12,12,' ');
this->cassettename.replace(c-94,f.length(),f);
}
void ScreenImage::setCassetteDirty(bool dirty)
{
int r(65);
int c(85+10);
drawChar(dirty?'*':' ',r,c);
this->cassettename[c-94] = dirty?'*':' ';
}
void ScreenImage::setCassettePos(int pos, int siz)
{
int r(65);
int c(110);
std::ostringstream os;
os << pos << '/' << siz << " ";
drawText(os.str(),r,c);
}
/*
1 2 3 4 5 6 7 8
789012345678901234567890123456789012345678901234567890123456789012345678
0: language RW B2
*/
void ScreenImage::setLangCard(int slot, bool readEnable, bool writeEnable, int bank)
{
int r(66+slot);
int c(29);
drawChar(readEnable?'R':' ',r,c);
this->slotnames[slot][c-20] = readEnable?'R':' ';
++c;
drawChar(writeEnable?'W':' ',r,c);
this->slotnames[slot][c-20] = writeEnable?'W':' ';
++c;
++c;
drawChar('B',r,c);
this->slotnames[slot][c-20] = 'B';
++c;
drawChar(bank==0?'1':'2',r,c);
this->slotnames[slot][c-20] = bank==0?'1':'2';
}
/*
1 2 3 4 5 6 7 8
789012345678901234567890123456789012345678901234567890123456789012345678
0: firmware D F8
*/
void ScreenImage::setFirmCard(int slot, bool bank, bool F8)
{
int r(66+slot);
int c(29);
drawChar(bank?'D':' ',r,c);
this->slotnames[slot][c-20] = bank?'D':' ';
++c;
++c;
drawChar(F8?'F':' ',r,c);
this->slotnames[slot][c-20] = F8?'F':' ';
++c;
drawChar(F8?'8':' ',r,c);
this->slotnames[slot][c-20] = F8?'8':' ';
}
#define TIMEFORMAT "ep2_%Y%m%d%H%M%S.bmp"
void ScreenImage::saveBMP()
{
time_t now;
::time(&now);
struct tm* nowtm = ::localtime(&now);
char time[64];
::strftime(time,sizeof(time),TIMEFORMAT,nowtm);
SDL_SaveBMP(this->screen,time);
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SCREENIMAGE_H
#define SCREENIMAGE_H
#include "analogtv.h"
#include <vector>
#include <string>
class Card;
struct SDL_Surface;
class ScreenImage
{
private:
SDL_Surface* screen;
bool fullscreen;
bool hyper;
bool buffer;
bool fillLines;
AnalogTV::DisplayType display;
unsigned int cmdpos;
void createScreen();
std::vector<std::string> slotnames;
std::string cassettename;
static std::string truncateFilePath(const std::string& filepath);
// TODO some of these methods should be private
public:
ScreenImage();
~ScreenImage();
void toggleFullScreen();
void drawPower(bool on);
void notifyObservers();
void setElem(const unsigned int i, const unsigned int val);
void blank();
void drawText(const std::string& text, int row, int col, int color = 0xFFFFFF, int bgcolor = 0);
void drawChar(const char ch, int row, int col, int color = 0xFFFFFF, int bgcolor = 0);
void drawLabels();
void drawSlots();
void drawSlot(int slot, int r, int c);
void drawCassette();
void drawFnKeys();
void toggleHyperLabel();
void toggleKdbBufferLabel();
void cycleDisplayLabel();
void displayHz(int hz);
void toggleFillLinesLabel();
void invertText(int row, int begincol, int endcol);
void drawDisplayLabel();
void updateSlotName(const int slot, Card* card);
void removeCard(const int slot, Card* card /* empty */);
void enterCommandMode();
void exitCommandMode();
void addkeyCommand(unsigned char key);
void backspaceCommand();
void setDiskFile(int slot, int drive, const std::string& filename);
void clearCurrentDrive(int slt, int drv);
void setCurrentDrive(int slt, int drv, int track, bool on);
void setTrack(int slot, int drive, int track);
void setIO(int slot, int drive, bool on);
void setDirty(int slot, int drive, bool dirty);
void setCassetteFile(const std::string& filepath);
void setCassetteDirty(bool dirty);
void setCassettePos(int pos, int siz);
void setLangCard(int slot, bool readEnable, bool writeEnable, int bank);
void setFirmCard(int slot, bool bank, bool F8);
void saveBMP();
};
#endif

151
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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "slots.h"
#include "screenimage.h"
#include <algorithm>
Slots::Slots(ScreenImage& gui):
gui(gui),
empty(),
cards(8,&this->empty)
{
forceGuiUpdate();
}
Slots::~Slots()
{
}
unsigned char Slots::io(const int islot, const int iswch, const unsigned char b, const bool writing)
{
return this->cards[islot]->io(iswch,b,writing);
}
struct Slots_Card_reset
{
void operator() (Card* p) { p->reset(); }
};
void Slots::reset()
{
std::for_each(this->cards.begin(),this->cards.end(),Slots_Card_reset());
}
unsigned char Slots::readRom(const int islot, const unsigned short addr, const unsigned char data)
{
return this->cards[islot]->readRom(addr,data);
}
struct Slots_Card_readSeventhRom
{
const unsigned short addr;
unsigned char* b;
Slots_Card_readSeventhRom(const unsigned short addr, unsigned char* b):addr(addr),b(b){}
void operator() (Card* p) { p->readSeventhRom(this->addr,this->b); }
};
unsigned char Slots::readSeventhRom(const unsigned short addr, const unsigned char data)
{
unsigned char b(data);
std::for_each(this->cards.begin(),this->cards.end(),Slots_Card_readSeventhRom(addr,&b));
return b;
}
struct Slots_Card_ioBankRom
{
const unsigned short addr;
unsigned char* b;
const bool write;
Slots_Card_ioBankRom(const unsigned short addr, unsigned char* b, const bool write):addr(addr),b(b),write(write){}
void operator() (Card* p) { p->ioBankRom(this->addr,this->b,this->write); }
};
unsigned char Slots::ioBankRom(const unsigned short addr, const unsigned char data, const bool write)
{
unsigned char b(data);
std::for_each(this->cards.begin(),this->cards.end(),Slots_Card_ioBankRom(addr,&b,write));
return b;
}
struct Slots_Card_inhibitMotherboardRom
{
bool inhibit;
Slots_Card_inhibitMotherboardRom():inhibit(false) { }
void operator() (Card* p) { if (p->inhibitMotherboardRom()) { inhibit = true; }}
};
bool Slots::inhibitMotherboardRom()
{
return std::for_each(this->cards.begin(),this->cards.end(),Slots_Card_inhibitMotherboardRom()).inhibit;
}
void Slots::set(const int slot, Card* card)
{
remove(slot);
this->cards[slot] = card;
this->gui.updateSlotName(slot,this->cards[slot]);
}
void Slots::remove(const int slot)
{
if (this->cards[slot] != &this->empty)
{
delete this->cards[slot];
this->cards[slot] = &this->empty;
this->gui.removeCard(slot,this->cards[slot]);
}
}
Card* Slots::get(const int slot)
{
return this->cards[slot];
}
void Slots::forceGuiUpdate()
{
for (int slot(0); slot < 8; ++slot)
this->gui.updateSlotName(slot,this->cards[slot]);
}
/*
struct isAnyDiskDriveMotorOnCard
{
bool on;
isAnyDiskDriveMotorOnCard():on(false) {}
void operator() (Card* p) { if (p->isMotorOn()) on = true; }
};
bool isAnyDiskDriveMotorOn()
{
isAnyDiskDriveMotorOnCard on = isAnyDiskDriveMotorOnCard();
std::for_each(this->cards.begin(),this->cards.end(),inh);
return on.inhibit;
}
*/
struct Slots_Card_isDirty
{
bool dirty;
Slots_Card_isDirty():dirty(false) {}
void operator() (Card* p) { if (p->isDirty()) dirty = true; }
};
bool Slots::isDirty()
{
return std::for_each(this->cards.begin(),this->cards.end(),Slots_Card_isDirty()).dirty;
}

51
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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SLOTS_H
#define SLOTS_H
#include <vector>
#include "card.h"
#include "emptyslot.h"
class ScreenImage;
class Slots
{
private:
ScreenImage& gui;
EmptySlot empty;
std::vector<Card*> cards;
public:
Slots(ScreenImage& gui);
~Slots();
unsigned char io(const int islot, const int iswch, const unsigned char b, const bool writing);
void reset();
unsigned char readRom(const int islot, const unsigned short addr, const unsigned char data);
unsigned char readSeventhRom(const unsigned short addr, const unsigned char data);
unsigned char ioBankRom(const unsigned short addr, const unsigned char data, const bool write);
bool inhibitMotherboardRom();
void set(const int slot, Card* card);
Card* get(const int slot);
void remove(const int slot);
bool isDirty();
void forceGuiUpdate();
};
#endif

179
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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "speakerclicker.h"
#include <SDL/SDL.h>
#include <iostream>
#include <ostream>
#include <deque>
std::deque<char> locbuf;
volatile bool done;
SDL_cond* bufchg;
SDL_mutex* buflck;
// TODO figure out why sound is so choppy, and fix it
void fillbuf(void *userdata, Uint8 *stream, int len)
{
int tot(0);
while (len && !done)
{
// wait for locbuf to have some data
// (it gets filled up by tick() method)
SDL_LockMutex(buflck);
while (locbuf.empty() && !done)
{
SDL_CondWait(bufchg,buflck);
}
if (done)
{
SDL_UnlockMutex(buflck);
return;
}
while (locbuf.size() > 0 && len > 0)
{
int v = locbuf.front();
*stream++ = v;
if (v < 0) v = -v;
tot += v;
--len;
locbuf.pop_front();
}
if (tot <= 0)
{
if (locbuf.size() >= 1024)
locbuf.clear();
}
else
{
if (locbuf.size() >= 65536);
locbuf.clear();
}
SDL_UnlockMutex(buflck);
}
}
#define TICKS_PER_SAMPLE 47
#define AMP 126
SpeakerClicker::SpeakerClicker():
clicked(false),
t(TICKS_PER_SAMPLE)
{
done = false;
SDL_AudioSpec audio;
audio.freq = 22050; // samples per second
audio.format = AUDIO_S8; // 8 bits (1 byte) per sample
audio.channels = 1; // mono
audio.silence = 0;
audio.samples = 4096;
audio.callback = fillbuf;
audio.userdata = 0;
SDL_AudioSpec obtained;
obtained.callback = 0;
obtained.userdata = 0;
if (SDL_OpenAudio(&audio,&obtained) != 0)
{
done = true;
std::cerr << "Unable to initialize audio: " << SDL_GetError() << std::endl;
}
else
{
bufchg = SDL_CreateCond();
buflck = SDL_CreateMutex();
std::cout << "initialized audio: " << std::endl;
std::cout << "freq: " << obtained.freq << std::endl;
std::cout << "format: " << (obtained.format==AUDIO_S8?"8-bit":"other") << std::endl;
std::cout << "channels: " << (int)obtained.channels << std::endl;
std::cout << "silence: " << (int)obtained.silence << std::endl;
std::cout << "samples: " << obtained.samples << std::endl;
std::cout << "size: " << obtained.size << std::endl;
SDL_PauseAudio(0);
}
}
SpeakerClicker::~SpeakerClicker()
{
if (done)
{
return;
}
done = true;
SDL_LockMutex(buflck);
SDL_CondSignal(bufchg);
SDL_UnlockMutex(buflck);
SDL_CloseAudio();
SDL_DestroyCond(bufchg);
SDL_DestroyMutex(buflck);
}
/*
void SpeakerClicker::tick()
{
--this->t;
if (this->t <= 0)
{
this->t = TICKS_PER_SAMPLE;
if (this->clicked)
{
this->positive = !this->positive;
this->clicked = false;
}
locbuf.push_back(this->positive ? AMP : -AMP);
locbuf.push_back(this->positive ? AMP : -AMP);
}
}
*/
void SpeakerClicker::tick()
{
if (done)
{
return;
}
--this->t;
if (this->t <= 0)
{
this->t = TICKS_PER_SAMPLE;
int amp;
if (this->clicked)
{
amp = this->positive ? AMP : -AMP;
this->positive = !this->positive;
this->clicked = false;
}
else
{
amp = 0;
}
SDL_LockMutex(buflck);
locbuf.push_back(amp);
SDL_CondSignal(bufchg);
SDL_UnlockMutex(buflck);
}
}
void SpeakerClicker::click()
{
this->clicked = true;
}

34
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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SPEAKERCLICKER_H
#define SPEAKERCLICKER_H
class SpeakerClicker
{
private:
bool clicked;
int t;
bool positive;
public:
SpeakerClicker();
~SpeakerClicker();
void tick();
void click();
};
#endif

65
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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "standardin.h"
StandardIn::StandardIn():
latch(0),
gotEOF(false)
{
}
StandardIn::~StandardIn()
{
}
unsigned char StandardIn::io(const unsigned short address, const unsigned char data, const bool writing)
{
int sw = address & 0x0F;
if (sw == 0)
{
if (!(this->latch & 0x80))
{
if (this->gotEOF)
{
this->latch = 0xFF;
}
else
{
if (!this->producer.getKeys().empty())
{
this->latch = this->producer.getKeys().front();
this->producer.getKeys().pop();
if (this->latch == 0xFF)
{
this->gotEOF = true;
}
this->latch |= 0x80;
}
}
}
}
else if (sw == 1)
{
this->latch &= 0x7F;
}
return this->latch;
}

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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef STANDARDIN_H
#define STANDARDIN_H
#include "card.h"
#include "standardinproducer.h"
class StandardIn : public Card
{
private:
StandardInProducer producer;
unsigned char latch;
bool gotEOF;
public:
StandardIn();
~StandardIn();
virtual unsigned char io(const unsigned short address, const unsigned char data, const bool writing);
virtual std::string getName() { return "standard input"; }
};
#endif

100
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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "standardinproducer.h"
#include <SDL/SDL.h>
#include <SDL/SDL_thread.h>
#include <iostream>
#define CR '\r'
#define LF '\n'
enum state_t { START, GOT_CR, GOT_LF, GOT_EOF };
static int readInput(void *voidkeys)
{
KeypressQueue* keys = (KeypressQueue*)voidkeys;
/*
* Continuously read characters from standard in
* and put them onto the queue.
* Stop when we hit EOF (placing EOF onto the queue).
* Translate LF to CR.
* If we hit a CR immediately after a LF, drop it.
* If we hit a LF immediately after a CR, drop it.
*/
enum state_t state = START;
while (state != GOT_EOF)
{
char c = std::cin.get();
c &= 0x7F;
if (!std::cin.good())
{
state = GOT_EOF;
keys->push(0xFF);
}
else
{
if (state == START)
{
if (c == CR)
{
state = GOT_CR;
}
else if (c == LF)
{
state = GOT_LF;
c = CR;
}
keys->push(c);
}
else if (state == GOT_CR)
{
if (c != LF)
{
keys->push(c);
}
state = START;
}
else if (state == GOT_LF)
{
if (c != CR)
{
if (c == LF)
{
c = CR;
}
keys->push(c);
}
state = START;
}
}
}
return 0;
}
StandardInProducer::StandardInProducer()
{
SDL_CreateThread(readInput,&this->keys);
}
StandardInProducer::~StandardInProducer()
{
}

35
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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef STANDARDINPRODUCER_H
#define STANDARDINPRODUCER_H
#include "keyboard.h"
class StandardInProducer
{
private:
KeypressQueue keys;
public:
StandardInProducer();
~StandardInProducer();
KeypressQueue& getKeys() { return this->keys; }
};
#endif

50
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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "standardout.h"
#include <iostream>
StandardOut::StandardOut()
{
}
StandardOut::~StandardOut()
{
}
unsigned char StandardOut::io(const unsigned short address, const unsigned char data, const bool writing)
{
if (!writing)
{
return data;
}
const char c = (char)(data&0x7F);
if (c == '\r')
{
std::cout << std::endl;
}
else
{
std::cout << c;
}
std::cout << std::flush;
return data;
}

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src/standardout.h Normal file
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/*
epple2
Copyright (C) 2008 by Chris Mosher <chris@mosher.mine.nu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY, without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef STANDARDOUT_H
#define STANDARDOUT_H
#include "card.h"
class StandardOut : public Card
{
public:
StandardOut();
~StandardOut();
virtual unsigned char io(const unsigned short address, const unsigned char data, const bool writing);
virtual std::string getName() { return "standard output"; }
};
#endif

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