mirror of
https://github.com/cmosher01/Epple-II.git
synced 2024-12-28 08:30:51 +00:00
more docs
This commit is contained in:
Christopher Mosher
parent
6967c97a8c
commit
68d9c5f24e
@ -12,24 +12,21 @@ optionally the peripheral card ROMs you want to use, you will need to configure
|
||||
Configuring is concerned primarily with telling the program what peripheral cards to use,
|
||||
and where the ROM files are located (and what memory addresses to load them at).
|
||||
|
||||
## epple2.conf
|
||||
## `epple2.conf`
|
||||
|
||||
The default configuration file for
|
||||
the Epple \]\[ emulator is:
|
||||
|
||||
/etc/epple2/epple2.conf
|
||||
/usr/local/etc/epple2/epple2.conf
|
||||
|
||||
For Windows, the file will be:
|
||||
|
||||
C:\Program Files\Epple2\etc\epple2\epple2.conf
|
||||
|
||||
The configuration file could be in a different location depending upon how
|
||||
the distribution package is built.
|
||||
C:\<Path to>\epple2\epple2.conf
|
||||
|
||||
You can specify a different configuration file for the emulator to use by
|
||||
specifying its name as the argument when running the epple2 program.
|
||||
|
||||
The format of the configuration file is just lines of [commands](commands,.md).
|
||||
The format of the configuration file is just lines of [commands](commands.md).
|
||||
Comments begin with a hash `#` character, and continue to the end of the line.
|
||||
|
||||
## Firmware
|
||||
@ -41,6 +38,23 @@ The firmware available is described in this documentation.
|
||||
Once the firmware image files are installed on your computer, you can use the `import`
|
||||
command in the configuration file to load the image files into the emulator.
|
||||
|
||||
Since the Epple \]\[ program emulates only the hardware, you will need to load some _system software_
|
||||
into in, in order for it to operate usefully.
|
||||
This software is commonly called *firmware* or *ROMs*, because it is stored in the
|
||||
read-only memory area of the emulated system. The original system software on the
|
||||
Apple \]\[ machines is copyright by Apple, and is proprietary. If you own an actual
|
||||
Apple \]\[ or Apple \]\[ plus machine, you can copy the firmware
|
||||
from it (`$D000`-`$FFFF`) (into a file on your PC) and use it. Alternatively, you can
|
||||
download the firmware images from the [Apple II Library](https://mosher.mine.nu/apple2/).
|
||||
|
||||
If you do not want to download the proprietary firmware, you can still use the emulator (albeit
|
||||
in a rudimentary manner) with the free (GPLv3) _System ROM (Demo)_ package (included with EPPLE \]\[).
|
||||
The source code is also available; you can
|
||||
assemble it using the [xa Assembler](http://www.floodgap.com/retrotech/xa/).
|
||||
The Demo System ROM only provides commands to dump or set memory bytes,
|
||||
or run a program in memory. It is not compatible with any Apple software, nor can it read from disks.
|
||||
It's just a free simple demo system to make the emulator do something reasonable.
|
||||
|
||||
## Peripheral Cards
|
||||
|
||||
Another primary concern for configuring the Epple \]\[ is the insertion of
|
||||
@ -51,13 +65,25 @@ types of cards available are described in the cards section.
|
||||
You can use the `slot` command in the configuration file to insert
|
||||
them into the Apple's slots.
|
||||
|
||||
If you are going to use the Disk \]\[ Controller peripheral card (which you almost certainly will, if
|
||||
you want to read any floppy disk images), you will need to have to original ROMs from Apple.
|
||||
No demo of the Disk ROMs are provided here; you will need to
|
||||
use the original ROMs, which can be obtained from an original machine (by copying
|
||||
it from `$C600`-`$C6FF` into a file on the PC), or by downloading it
|
||||
from the [Apple II Library](http://mosher.mine.nu/apple2/).
|
||||
(And, of course, you will need the real Apple System ROM, as noted in the previous section,
|
||||
not the Demo System ROM.)
|
||||
|
||||
If you are using any of the clock, the standard output, or the
|
||||
standard input cards, you will need to load their firmware as well.
|
||||
|
||||
## Sample Configuration Files
|
||||
|
||||
There are a number of configuration files provided with the distribution for
|
||||
your convenience. They provide various common configurations of machines.
|
||||
You can use one of these files directly, by specifying its path as the argument
|
||||
to the program, or as a starting point for you own configuration file. These sample
|
||||
files are in the same location as the default +epple2.conf+ file.
|
||||
files are in the same location as the default `epple2.conf` file.
|
||||
|
||||
The Epple \]\[ Emulator can actually be run without a configuration file at all.
|
||||
In this case, you will be able to power on the Apple and see the low-resolution
|
||||
|
||||
@ -6,6 +6,8 @@ screenshots
|
||||
|
||||
---
|
||||
|
||||
|
||||
|
||||
### DOS 3.3 System Master boot
|
||||
|
||||
image::dos330boot.png[]
|
||||
@ -29,7 +31,7 @@ with a Revision Zero motherboard, and a disk
|
||||
controller (with 13-sector ROMs) in slot 6. With a
|
||||
revision 0 motherboard, when the machine is powered-on,
|
||||
the CPU doesn't start actually running until you
|
||||
manually press the RESET button. Also, the old Monitor
|
||||
manually press the **RESET** `F6` button. Also, the old Monitor
|
||||
ROMs do not boot from the disk drives automatically;
|
||||
you need to type `C600G` to boot.
|
||||
We've booted the DOS 3.1 System Master disk and done a
|
||||
@ -101,7 +103,7 @@ RUN
|
||||
image::pinkmystery.png[]
|
||||
|
||||
Jim Sather's book
|
||||
[*Understanding the Apple \]\[*](https://archive.org/details/understanding_the_apple_ii/),
|
||||
[*Understanding the Apple II*](https://archive.org/details/understanding_the_apple_ii/),
|
||||
which is the primary
|
||||
reference for the internal design of the EPPLE \]\[ emulator, describes the video
|
||||
generation process of the Apple \]\[, in great detail, in Chapter 8.
|
||||
|
||||
@ -48,8 +48,7 @@ inserts a language card into slot zero. Use `empty` to remove a card:
|
||||
slot 0 empty
|
||||
```
|
||||
|
||||
[NOTE]
|
||||
The emulated Apple should be _powered off_ before inserting or removing cards.
|
||||
Note that the emulated Apple should be *powered off* before inserting or removing cards.
|
||||
|
||||
|
||||
|
||||
@ -76,6 +75,7 @@ Christopher Espinosa, [*Apple II Reference Manual*](https://archive.org/details/
|
||||
(Cupertino, Calif.: Apple Computer, 1978), pp. 70-72.
|
||||
|
||||
In the `motherboard ram` configuration line `(other-models)` of chips are supported, and will produce different bit patterns at power-on time:
|
||||
|
||||
``` conf
|
||||
MM5290
|
||||
MK4116
|
||||
@ -161,12 +161,10 @@ p. 5-26 *The 16K RAM Card*).
|
||||
|
||||
The `load` command loads a [WOZ 2.0 format](https://applesaucefdc.com/woz/) floppy disk image into one of the emulated disk drives.
|
||||
|
||||
|
||||
``` conf
|
||||
load slot <slot> drive <drive> [ <file-path> ]
|
||||
```
|
||||
|
||||
|
||||
`slot` Slot number, 0 through 7, of Disk \]\[ controller card to load the disk image into.
|
||||
|
||||
`drive` Drive number, 1 or 2, of the disk drive on the controller card to load the disk image into.
|
||||
@ -202,8 +200,8 @@ unload slot <slot> drive <drive>
|
||||
|
||||
The `unload` command removes the disk from the specified slot and drive.
|
||||
|
||||
[WARNING]
|
||||
If the disk has been modified but not saved, the modifications will be DISCARDED.
|
||||
> #### Warning
|
||||
> If the disk has been modified but not saved, the modifications will be **DISCARDED**.
|
||||
|
||||
|
||||
|
||||
@ -261,8 +259,7 @@ The `revision` command specifies which revision of Apple \]\[ motherboard to use
|
||||
revision <rev>
|
||||
```
|
||||
|
||||
|
||||
`rev` Revision number of the motherboard. Currently, only two values make any difference in behavior: 0 or 1.
|
||||
`rev` Revision number of the motherboard. Currently, only two values make any difference in behavior: `0` or `1`.
|
||||
|
||||
The `revision` command chooses which revision of the Apple \]\[ motherboard to
|
||||
use. The only revisions that make any difference (for now, at least) are 0 or 1. Zero
|
||||
@ -297,7 +294,7 @@ Televisions react more slowly to
|
||||
changes in the incoming video signal than monitors do, and as a result, horizontal pixels will
|
||||
merge together, forming a more uniform appearance. EPPLE \]\['s television mode emulates the
|
||||
signal decoding circuitry of a real television. This includes separating out the *chroma* portion
|
||||
of the incoming NTSC video signal using a filter algorithm, and _calculating_ the color to display.
|
||||
of the incoming NTSC video signal using a filter algorithm, and *calculating* the color to display.
|
||||
|
||||
#### Scan Lines
|
||||
|
||||
@ -305,7 +302,7 @@ NTSC displays (TVs or monitors) usually receive signals that are interlaced. How
|
||||
Apple \]\[ doesn't generate interlaced screens. This causes blank rows between each displayed
|
||||
row of pixels. The EPPLE \]\[ emulates this behavior, but also allows you to *fill in* these
|
||||
black rows with a copy of the row above it, for a more continuous display (vertically). Use
|
||||
the F4 key to toggle between these two modes.
|
||||
the `F4` key to toggle between these two modes.
|
||||
|
||||
#### Resolution
|
||||
|
||||
@ -388,7 +385,7 @@ each scan line to the following line, to fill-in the otherwise black line.
|
||||
(as if they had been typed on the keyboard).
|
||||
* `F8` Save a bitmap file of the current EPPLE \]\[ screen.
|
||||
The file will be in the default directory, named `ep2_YYYYMMDDHHMMSS.bmp`.
|
||||
* `F9` Quit the EPPLE \]\[ program, immediately!
|
||||
* `F9` Quit the EPPLE \]\[ program, *immediately*!
|
||||
* `F10` Emulates the REPT key.
|
||||
* `F11` Toggles between running the emulator at authentic speed
|
||||
(1.02 MHz CPU), or as fast as possible.
|
||||
@ -446,7 +443,7 @@ To use a language card, add this line to your epple2.conf file:
|
||||
slot 0 language
|
||||
```
|
||||
|
||||
Note that DOS and ProDOS will make use of a language card only if it is in slot _zero_.
|
||||
Note that DOS and ProDOS will make use of a language card only if it is in slot *zero*.
|
||||
|
||||
The language card has RAM at addresses `$E000`-`$FFFF`, as well as two banks of RAM
|
||||
at addresses `$D000`-`$DFFF`. A program switches between these RAMs and/or the
|
||||
@ -524,7 +521,7 @@ an Apple \]\[ plus), and then install a firmware card with Integer
|
||||
BASIC and the old Monitor. Booting with DOS 3.3, then, would allow
|
||||
you to type `FP` to use Applesoft BASIC, or `INT` to switch to Integer BASIC.
|
||||
|
||||
Note that DOS and ProDOS will make use of a firmware card only if it is in slot _zero_.
|
||||
Note that DOS and ProDOS will make use of a firmware card only if it is in slot *zero*.
|
||||
|
||||
Jim Sather, in
|
||||
[*Understanding the Apple II*](https://archive.org/details/understanding_the_apple_ii/page/n151),
|
||||
@ -562,7 +559,6 @@ To verify that the clock card is working correctly, you can run the following Ap
|
||||
program to retrieve the current time from the clock card and print it.
|
||||
This program assumes the card is in slot 4.
|
||||
|
||||
|
||||
``` visualbasic
|
||||
NEW
|
||||
|
||||
@ -578,7 +574,6 @@ NEW
|
||||
RUN
|
||||
```
|
||||
|
||||
|
||||
The card returns data (into the `GETLN` input buffer at `$0200`) in
|
||||
the following format:
|
||||
|
||||
@ -651,6 +646,7 @@ prompt, type `PR#1`. Whatever you type next will be
|
||||
echoed to standard output. Type `PR#0` to stop echoing.
|
||||
|
||||
|
||||
|
||||
### Cassette Tape Interface
|
||||
|
||||
The Apple \]\[ and Apple \]\[ plus machines have the ability to save and load binary
|
||||
@ -723,7 +719,7 @@ The file must not already exist. The file type should be `.wav` to indicate a WA
|
||||
`cassette save`
|
||||
|
||||
This command saves the changed tape to the file. Note that the display will show
|
||||
an asterisk `\*` next to the file name if there are unsaved changes that need to
|
||||
an asterisk `*` next to the file name if there are unsaved changes that need to
|
||||
be saved.
|
||||
|
||||
`cassette eject { in | out }`
|
||||
@ -760,7 +756,7 @@ image file.
|
||||
command: cassette blank hello.wav
|
||||
```
|
||||
|
||||
This will create a new, empty tape file image named +hello.wav+
|
||||
This will create a new, empty tape file image named `hello.wav`
|
||||
in the current default directory. (We could have specified a full path
|
||||
name for the file if we wanted to place it in a different directory.)
|
||||
Notice that the emulator now displays the name of the tape image file.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user