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1997-04-24
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138 lines
These are most of the changes made to the original v2600 source code
necessary to compile on Amiga using SAS/C. I don't like warnings...
Version 0.5:
config.h:
#define inline SAS/C optimization automatically inlines
#define TIME_WITH_SYS_TIME <sys/time> doesn't exist with SAS/C
#define Verbose 0 I don't want debugging info...
#define WORDS_BIGENDIAN 1 Amiga runs on Motorola 68000
#define HAVE_ATEXIT 1
all other defines set to 0 I don't have these things...
types.h:
#include <exec/types.h> Amiga type declarations
deleted BYTE typedef That BYTE definition should be UBYTE, i.e.
typedef unsigned char UBYTE;
vmachine.h:
all BYTEs changed to UBYTEs see types.h
collision.h:
all BYTEs changed to UBYTEs see types.h
display.h:
all BYTEs changed to UBYTEs see types.h
exmacro.h:
all BYTEs changed to UBYTEs see types.h
extern.h:
all BYTEs changed to UBYTEs see types.h
memory.h:
all BYTEs changed to UBYTEs see types.h
misc.h:
all BYTEs changed to UBYTEs see types.h
sound.h:
all BYTEs changed to UBYTEs see types.h
raster.c:
#include <string.h> prototype for memcpy()
all BYTEs changed to UBYTEs see types.h
misc.c:
all BYTEs changed to UBYTEs see types.h
files.c:
#include <stdlib.h> prototype for exit()
all BYTEs changed to UBYTEs see types.h
added "return 1" to loadc26 I just don't like warnings...
vmachine.c:
#include <string.h> prototype for memcpy()
all BYTEs changed to UBYTEs see types.h
memory.c:
#include <config.h> so we can undefine inline
#include <string.h> prototype for memcpy()
all BYTEs changed to UBYTEs see types.h
cpu.c:
all BYTEs changed to UBYTEs see types.h
changed #include <sys/types.h> to
#include "types.h" so types match all other modules
exmacro.c:
all BYTEs changed to UBYTEs see types.h
type-cast ADDRESS in load_abs_addr warnings again...
keyboard.c:
#include <stdlib.h> protoype for exit()
all BYTEs changed to UBYTEs see types.h
collision.c:
all BYTEs changed to UBYTEs see types.h
options.c: This was the messy one...
added /n's to copyright and usage SAS/C didn't like the other way
added -k to choose keyboard It wasn't there
eliminiated X11 stuff from usage I had to put /n's in there anyway...
wrote a generic command parser I don't have getopt()
made real joystick default Most Amigans have them
made no sound default Haven't implemented sound yet...
made no debug default Personal preference
removed base_usage function I don't know why it's there
removed -t option Don't need it
main.c:
moved the atexit stuff to top memory wasted when ROM wouldn't load
I added a no_limiter.c. The Amiga graphics driver I'm using automatically
syncs up to the vertical blank, so no fancy timing tricks are necessary.
It would be impossible to go faster than the vertical blank, which will be
60 Hz on NTSC Amigas and 50Hz on PAL Amigas.
I wrote a v2600.readme to replace the v2600.man. Not many Amiga users have
man. I also wrote a README.Amiga which adds some Amiga details.
Version 0.6:
Almost completely rewrote config.c. Renamed to amiga_config.c. Added some
options, took away many that didn't apply to Amiga.
Changed quite a bit of raster.c. Renamed to amiga_raster.c.
Took all debug stuff out of cpu.c.
Removed references to base_opts.magstep from several modules.
Slimmed down cpu.c. Renamed to amiga_cpu.c. Took out all cases for
illegal opcode and made illegal opcode the default. Took out some X64 stuff.
Remarked out the printf in the RSYNC case in memory.c. It happens a lot...
Made the printf in vmachine about ROM size dependent on Verbose define.
Moved Amiga mouse routines to amiga_disp.c for OS-proper window relative stuff.
Version 0.7:
Added amiga_sound.c to implement sound, such as it is. OS friendly!
In tiasound.c, when sound is written to buffer, 64 is subtracted to make it clean.
Added exmacro.c to amiga_cpu.c so functions could be inlined.
Removed calls to functions that don't exist.
Removed unnecessary header files from many modules.