Makefile

@@ -1,15 +1,10 @@
-CC = gcc
-FLAGS = -std=c11 -pedantic -Wpedantic -Wall -O3
-
 LIBS = -lSDL2
-# comment these two lines if you are under Linux :
-WIN32-LIBS = -lmingw32 -lSDL2main -Wl,-subsystem,windows
-WIN32-RES = reinetteII+.res
+FLAGS = -std=c99 -pedantic -Wpedantic -Wall -Werror -O3
+# comment this line if you are under Linux
+LIBS-WIN32 = -lmingw32 -lSDL2main -Wl,-subsystem,windows
+CC = gcc
 
-reinetteII+: reinetteII+.c puce6502.c $(WIN32-RES)
-	$(CC) $^ $(FLAGS) $(WIN32-LIBS) $(LIBS) -o $@
-
-reinetteII+.res: reinetteII+.rc
-	windres $^ -O coff -o $(WIN32-RES)
+reinetteII+: reinetteII+.c puce6502.c
+	$(CC) $^ $(FLAGS) $(LIBS-WIN32) $(LIBS) -o $@
 
 all: reinetteII+

README.md

@@ -2,110 +2,99 @@
 
 ### reinette goes graphical !
 
-![screenshots](assets/screenshots.png)
+![screenshots](screenshots.png)
 
-After [reinette](https://github.com/ArthurFerreira2/reinette) (Apple 1 emulator) and [reinette II](https://github.com/ArthurFerreira2/reinette-II) (the text only Apple II emulator), I am proud to release **reinette II plus**, a French\* Apple II plus emulator using SDL2.
+After [reinette](https://github.com/ArthurFerreira2/reinette) (Apple 1 emulator) and [reinette II](https://github.com/ArthurFerreira2/reinette-II) (the text only Apple II emulator), I am proud to release **reinette II plus**, a french\* Apple II plus emulator using SDL2.
 
-\* reinette has two meanings in French : it's a little frog but also a delicious kind of apple
-
-[download windows binaries](https://github.com/ArthurFerreira2/reinette-II-plus/releases/tag/0.4)
+\* reinette has two meanings in french : it's a little frog but also a delicious kind of apple
 
 ### Featuring :
 
 * all video modes in color
 * mono sound with mute/unmute
-* 64KB (language card support)
-* paddles/joystick with trim adjustment
+* 48KB (no language card support)
+* paddles/joystic with trim ajustment
 * paste text from clipboard
 * disk ][ adapter with two drives (.nib files only)
-* drag and drop .nib files to inset a floppy
+* drag and drop nib files to inset a floppy
 * save floppy changes back to host
-* screen scaling by integer increments
-* easy screenshot
+* zoom the window by integer increments
 
 
-It uses an optimized and accurate MOS 6502 CPU emulator (now christened [puce6502](https://github.com/ArthurFerreira2/puce6502)).\
+It uses the same MOS 6502 CPU emulator as her sisters (now christened [puce6502](https://github.com/ArthurFerreira2/puce6502)).\
 You only need SDL2 to compile it. (I'm not using SDL_Mixer, but only the native SDL2 audio functions)
 
+
 This emulator is not accurate in many ways and does not compete with
 [AppleWin](https://github.com/AppleWin/AppleWin), [Epple](https://github.com/cmosher01/Epple-II) or [LinApple](https://github.com/linappleii/linapple). Better use one of them if you want a good Apple ][ emulation experience.
 
 I wrote it with the goal to better understand the Apple ][ internals, and I'm publishing the sources in the hope they will be of any help.
 
-It's compact, with two source files only, one for the CPU emulation, the other for the computer itself.
+It's compact, less than 1000 SLOC, with two source files only, one for the CPU emulation, the other for the computer itself.
 
 I did my best to comment the code, and if you have an idea of how an Apple ][ works, it should be easy for you to understand the code, modify and enhance it for your needs (see TODO section).
 
+
 ### Startup
 
-  You can specify a .nib file at the command line to start the emulator with a floppy engaged in drive 1. Otherwise, the emulator will start with no floppy (and thus waits until you press the reset key or drag and drop a .nib file)
+  You can specify a .nib file on the command line to start the emulator with a floppy engaged in drive 1. Otherwhise, the emulator will start with no floppy (and thus wait one until you press the reset key or drag and drop a nib file)
+
 
 ### Usage
 
-Drag and drop a disk image file (.nib format only) to insert it into drive 1\
-**reinette II plus** will reboot immediately and try to boot the floppy.\
-Press CTRL while dropping the file if you don't want the emulator to reboot \
-Pressing the ALT key while dropping the file inserts it into drive 2.
+Drag and drop a disk image file (.nib format only) to inset it into drive 1\
+Drop the file while pressing the ALT key to insert it into drive 2
 
-Use the functions keys to control the emulator itself :
+Use the functions keys to control the emulator itself
 ```
-* F1       : display save how to
-* ctrl F1  : writes the changes of the floppy in drive 0 back to host
-* alt  F1  : writes the changes of the floppy in drive 1 back to host
-* F2       : save a screenshot into the screenshots directory
-* F3       : paste text from clipboard
-* F4       : mute / unmute sound
-* shift F4 : increase volume
-* ctrl  F4 : decrease volume
-* F5       : reset joystick release speed,
-* shift F5 : increase joystick release speed
-* crtl  F5 : decrease joystick release speed,
-* F6       : reset joystick action speed,
-* shift F6 : increase joystick action speed
-* crtl  F6 : decrease joystick action speed,
-* F7       : reset the zoom to 2:1
-* shift F7 : increase zoom up to 8:1 max
-* ctrl  F7 : decrease zoom down to 1:1 pixels
-* F10       : pause / un-pause the emulator
-* F11      : reset
-* F12      : about, help
+* F1    : writes the changes of the floppy in current drive back to host
+* F4    : paste text from clipboard
+* F5    : zoom out down to 1:1
+* F6    : zoom in, no magnification limit
+* F7/F8 : adjust joystic trim
+* F9    : mute/unmute soud
+* F10   : reset
+* F11   : break
+* F12   : quit (you can also just close the window)
 
-Paddles / Joystick :
+Paddles / Joystic :
 
 * numpad 1 : left
 * numpad 3 : right
-* numpad 5 : up
 * numpad 2 : down
+* numpad 3 : up
 * CTRL     : button 0
 * ALT      : button 1
-* SHIFT    : button 2 (allow applications to use the shift mod)
 ```
 
 ### Limitations
 
-* ~~high pitch noise at high volume on windows (Linux Ubuntu tested OK)~~
-* ~~sound cracks when playing for long period (intro music for example)~~
-* ~~CPU is not 100% cycle accurate - see source file for more details~~
+* high pitch noise at high volume (might be related with my environment)
+* sound cracks when playing for long period (intro music for example)
+* CPU is not 100% cycle accurate - see source file for more details
 * colors are approximate (taken from a scan of an old Beagle bros. poster)
-* ~~HGR video is inaccurate, and does not implement color fringing~~
-* ~~disk ][ access is artificially accelerated~~ - considered as a feature
+* HGR video is inaccurate, and does not implement color clashing
+* disk ][ access is artificially accelerated
 * only support .nib floppy images. (you can use [CiderPress](https://github.com/fadden/ciderpress) to convert your images to this format)
-* ~~only has 48KB of RAM (can't run software requiring the language card)~~
+* only has 48KB of RAM (can't run some software requiring the language card)
 * and many others ...
 
-### To do
 
-* ~~fix sound cracks~~
+### To do :
+
 * give a warning if the application exits with unsaved floppy changes
-* check for more accurate RGB values.
-* ~~implement color fringe effect in HGR~~
-* ~~re-implement Paddles and Joystick support for analog simulation~~
-* ~~implement the language card and extend the RAM of **reinette II plus** to 64K to support more software.~~
+* give the user the option to start with the original Apple II rom
+* colors where taken from an old Beagle Bros poster, find more accurate RGB values.
+* implement color clashing in HGR
+* optimize sound generation
+* optimize disk access (speed is actually a bit artificial)
+* re-implement Paddles and Joystic support for a better analog simulation
+* implement the language card and  extend the RAM of **reinette II plus** to 64K to support more sofware.
 * for 6502 coders :
   * add the ability to insert a binary file at a specified address
-  * give the user the option to start with the original Apple II rom
-  * dump regs, soft switches and specified memory pages to console
+  * dump regs, soft swithes and specified memory pages to console
 
+Follow me to keep updated !
 \
 \
 \

puce6502.h

@@ -1,13 +1,7 @@
 /*
   Puce6502 - MOS 6502 cpu emulator
   Last modified 1st of August 2020
-  Copyright (c) 2018 Arthur Ferreira
-
-  This version has been modified for Reinette II plus, a french Apple II plus
-  emulator using SDL2 (https://github.com/ArthurFerreira2/reinette-II-plus).
-
-  Please download the latest version from
-  https://github.com/ArthurFerreira2/puce6502
+  Copyright (c) 2018 Arthur Ferreira (arthur.ferreira2@gmail.com)
 
   Permission is hereby granted, free of charge, to any person obtaining a copy
   of this software and associated documentation files (the "Software"), to deal
@@ -28,24 +22,24 @@
   THE SOFTWARE.
 */
 
-
-#ifndef _PUCE6502_H
-#define _PUCE6502_H
+#ifndef _CPU_H
+#define _CPU_H
 
 typedef unsigned char uint8_t;
 typedef unsigned short uint16_t;
-typedef enum { false, true } bool;
+typedef enum {false, true} bool;
 
-extern unsigned long long int ticks;
+#define ROMSTART 0xD000
+#define ROMSIZE  0x3000
+#define RAMSIZE  0xC000
 
-uint16_t puce6502Exec(unsigned long long int cycleCount);
-void puce6502RST();
-void puce6502IRQ();
-void puce6502NMI();
+uint8_t rom[ROMSIZE];
+uint8_t ram[RAMSIZE];
 
-// void printRegs();
-// void dasm(uint16_t address);
-// void setPC(uint16_t address);
-// uint16_t getPC();
+long long int ticks;
 
+void puce6502Exec(long long int cycleCount);
+void puce6502Reset();
+void puce6502Break();
+void puce6502Goto(uint16_t address);
 #endif

reinetteII+.rc

@@ -1,24 +0,0 @@
-1 ICON "assets/reinetteII+.ico"
-1 VERSIONINFO
-FILEVERSION     0,4,8,0
-PRODUCTVERSION  0,4,8,0
-BEGIN
-  BLOCK "StringFileInfo"
-  BEGIN
-    BLOCK "040904E4"
-    BEGIN
-      VALUE "CompanyName", "Arthur Ferreira"
-      VALUE "FileDescription", "Apple II+ emulator"
-      VALUE "FileVersion", "0.4.8.0"
-      VALUE "InternalName", "reinette II plus"
-      VALUE "LegalCopyright", "Arthur Ferreira"
-      VALUE "OriginalFilename", "reinetteII+.exe"
-      VALUE "ProductName", "reinette II plus"
-      VALUE "ProductVersion", "0.4.8.0"
-    END
-  END
-  BLOCK "VarFileInfo"
-  BEGIN
-    VALUE "Translation", 0x409, 1252
-  END
-END