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updated SDL and DOS versions

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22
source/doc/changelog
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[04/20/03]
- Modified 68000 emulator to prevent 'tas.b $mem' from writing data back
after a read (fixes Gargoyles).
- Fixed bug in 68000 emulator to swap order of words written for address
register indirect pre-decremented writes (fixes Jim Power graphics).
- Added support for 240-line displays (for Super Skidmarks).
- Rewrote part of the interrupt handling (fixes some raster effects).
- Removed sprite collision detection code (never really worked).
- Optimized sprite rendering inner loop.
[04/13/03]
- Finished up memory map for VDP DMA V-bus reads.
- Fixed handling of 68000 writes to I/O chip at even addresses.
- Fixed bit 7 handling of control register in I/O chip.
- Finished up Z80 memory map.
- Added code to handle Genesis hardware lock-ups.
- Removed some faulty code from the 68000 memory map handlers.
[03/22/03]
- Completed implementation of Z80 banked memory handlers.

340
source/doc/license
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89
source/doc/porting.txt
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@ -1,89 +0,0 @@
Introduction
Genesis Plus has reasonable speed, and very fast rendering. Here are some
details about porting it to another platform
Porting rules
- This program is released under the GPL, so please release the source
code for your derivative ports. Let me know if you need an alternative
to this.
- Do not change the name of the emulator. Something like 'Genesis Plus / MacOS'
is fine as it keeps the original name.
- Configure the CPU emulators for little or big-endian CPUs, and use the
ALIGN_LONG option to handle unaligned memory accesses if needed. E.g. if
the emulator crashes when a game scrolls horizontally, you need to enable
it.
Requirements
- At this time the 16-bit rendering code has been well tested and should
be used. There is code to support 8 through 32-bit displays, but I
haven't checked if it still works.
- Audio output, if enabled, uses stereo 16-bit samples.
Functions to use:
int load_rom(char *filename);
Loads a game which can be in BIN, SMD or ZIP formats. It returns zero if
an error has occured.
void system_init(void);
Initializes the virtual Genesis console. Call this once during startup.
void audio_init(int rate);
Initialize the sound emulation part of the emulator. Pass zero or don't
call the function to disable sound. Call this after running system_init().
void system_reset(void);
Resets the virtual Genesis console. Call this once during setup, and later
as needed.
int system_frame(int skip);
Updates the emulation for a frame. Pass 1 to prevent rendering (which can
be used for frame skipping) and 0 to render the current display.
This function returns 0 if the virtual Genesis console has locked up.
You can do what you'd like with this information, such as notify the user,
reset the machine, etc.
If audio is enabled, the snd.buffer[] array will hold the current audio
data for this frame.
void system_shutdown(void);
Shuts down the emulator.
Variables:
The 'bitmap' structure needs to be filled out prior to calling system_init().
This provides the rendering code with information about the type of bitmap
it is rendering to. I would advise sticking with a 1024x512 16-bit bitmap:
memset(&bitmap, 0, sizeof(t_bitmap));
bitmap.width = 1024;
bitmap.height = 512;
bitmap.depth = 16;
bitmap.granularity = 2; /* Bytes per pixel */
bitmap.pitch = (bitmap.width * bitmap.granularity);
bitmap.data = (unsigned char *)bmp->pixels; /* Pointer to your bitmap */
bitmap.viewport.w = 256; /* Initial size of display on power-up (do not change) */
bitmap.viewport.h = 224;
bitmap.viewport.x = 0x20; /* Offset used for rendering (do not change) */
bitmap.viewport.y = 0x00;
bitmap.remap = 1;
The variable 'input.pad[0]' holds the button states for the first player
gamepad. Update this prior to calling system_frame(), and use the bitmasks
defined in system.h such as 'INPUT_UP', etc.
See the Windows/SDL and DOS drivers for examples.

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source/doc/readme.txt
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----------------------------------------------------------------------------
Genesis Plus
----------------------------------------------------------------------------
Version 1.2a
by Charles Mac Donald
WWW: http://cgfm2.emuviews.com
What's New
----------
[06/22/03]
- Modified rendering code for portability
- Modified memory handling to fix banked PSG access
[05/13/03]
- Initial release
Usage
-----
The Windows version runs windowed in a 16-bit desktop with NO sound or
joystick support.
The DOS version has most of the functionality from SMS Plus, such
as audio, joysticks, etc.
Windows/DOS controls:
Arrow Keys - Directional pad
A,S,D,F - 1P gamepad, buttons A, B, C, Start
Tab - Reset
Esc - Exit program
DOS only:
End - Exit program
F1-F4 - Set frameskip level (F1 = no skip ... F4 = skip 3 frames)
F8 - Make PCX screen snapshot
F9 - Toggle VSync
F10 - Toggle speed throttling
F11 - Toggle FPS meter
DOS details:
You can only support a second player if you are using a joystick driver
that supports more than one joystick. (e.g. Sidewinder, dual pads, etc.)
Type 'gen -help' on the command line for a list of useful options.
-res <x> <y> set the display resolution.
-vdriver <n> specify video driver.
-depth <n> specify color depth. (8, 16)
-scanlines use scanlines effect.
-scale scale display to full resolution. (slow)
-vsync wait for vertical sync before blitting.
-sound enable sound. (force speed throttling)
-sndrate <n> specify sound rate. (8000, 11025, 22050, 44100)
-sndcard <n> specify sound card. (0-7)
-swap swap left and right stereo output.
-joy <s> specify joystick type.
Here is a list of all the video drivers you can pass as a parameter
to the '-vdriver' option:
auto, safe, vga, modex, vesa2l, vesa3, vbeaf
Here is a list of all the joystick drivers you can pass as a parameter
to the '-joy' option:
auto, none, standard, 2pads, 4button, 6button, 8button, fspro, wingex,
sidewinder, gamepadpro, grip, grip4, sneslpt1, sneslpt2, sneslpt3,
psxlpt1, psxlpt2, psxlpt3, n64lpt1, n64lpt2, n64lpt3, db9lpt1, db9lpt2,
db9lpt3, tglpt1, tglpt2, tglpt3, wingwar, segaisa, segapci, segapci2
You can put any commandline option into a plain text file which should
be called "gen.cfg". Put one option per line, please. Command line options
will override anything in the configuration file.
Currently the zip loading code can manage a zipfile where the game
image is the first thing in it. If you try to open a huge archive of
games, only the first will be played.
Credits and Acknowlegements
---------------------------
I would like to thank Omar Cornut, Christian Schiller, and Chris MacDonald
for their invaluable help and support with this project.
Richard Bannister for the Macintosh port and all of the code fixes and
suggestions that have made Genesis Plus a better program.
(http://www.bannister.org)
The Genesis emulator authors: Bart Trzynadlowski, Quintesson, Steve Snake,
James Ponder, Stef, Gerrie, Sardu.
The regular people and many lurkers at segadev.
The MAME team for the CPU and sound chip emulators.
Everyone who has contributed, donated, and submitted information to help
out Genesis Plus and my efforts documenting the Genesis hardware.
Contact
-------
Charles MacDonald
E-mail: cgfm2@hotmail.com
WWW: http://cgfm2.emuviews.com
Legal
-----
Copyright (C) 1999, 2000, 2001, 2002, 2003 Charles MacDonald
The source code is distributed under the terms of the GNU General Public
License.
The Z80 CPU emulator, 68K CPU emulator, and the PSG, YM2612 emulation code
are taken from the MAME project, and terms of their use are covered under
the MAME license.
(http://www.mame.net)

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source/doc/todo.txt
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@ -1,79 +0,0 @@
Here are some technical details about things that need to be fixed or
added to Genesis Plus.
Missing features:
- Support for 6-button controllers
- SRAM management
- Game Genie / PAR patch codes
The VDP code could use a lot of cleaning up.
The rendering code is missing a few bits:
- Sprite collision
- Window bug
I think the "C" 68000 emulator either has some bugs or I'm not using it
correctly. Older DOS-only versions used Turbo68K, which had ran games
much better, especially with regards to interrupt handling.
Things that need to be fixed:
- Raster garbage on third road in Thunder Blade.
- Added country codes for Dragon Slayer, but game locks up after
passing country check.
- No inputs in Samurai Shodown.
(This game doesn't initialize the port direction registers, at least not
directly. Emulation bug or problem with the game?)
- Palette and raster problems in Mortal Kombat.
- Bad raster effects and VRAM corruption in Super Skidmarks.
(Needs PAL timing)
- Palette problems in Sonic 2 title screen.
- Masked half of Sonic sprite visible on Sonic title screen.
- Sprite masking doesn't work in Micro Machines subscreen.
- Music has slow tempo in Batman & Robin. (doesn't seem to be a problem
with the YM2612 timers - Wonderboy 3 is normal)
- Music has jerky playback in Sonic 2, 3, 3D Blast. If you run the Z80
emulation for one scanline after requesting an interrupt, it runs fine.
- DAC and PSG output are too loud, both are divided by two for now
(though the PSG should be a bit quieter and the DAC a bit louder)
- Undead Line locks after selecting a stage, also the Z80 sound halts
after the first note is played.
This game single steps the Z80 with the following code:
MOVEM.L D0,-(A7) ; 009C7C 48 E7 80 00
ORI #$0200,SR ; 009C80 00 7C 02 00
; Get control of the Z-bus
MOVE.W #$0100,$00A11100 ; 009C84 33 FC 01 00 00 A1 11 00
BTST #$00,$00A11100 ; 009C8C 08 39 00 00 00 A1 11 00
BNE.S *-$08 [00009C8C] ; 009C94 66 F6
; Check driver status byte. If zero, release bus and exit.
TST.B $00A00008 ; 009C96 4A 39 00 A0 00 08
BEQ *+$0016 [00009CB2] ; 009C9C 67 00 00 14
; Release bus and wait for Z80 to resume control. Then restart the loop
; and immediately get the bus back again, assuming the Z80 ran at least
; one instruction in the meantime.
CLR.W $00A11100 ; 009CA0 42 79 00 A1 11 00
BTST #$00,$00A11100 ; 009CA6 08 39 00 00 00 A1 11 00
BEQ.S *-$08 [00009CA6] ; 009CAE 67 F6
BRA.S *-$2C [00009C84] ; 009CB0 60 D2
; Release bus and exit.
CLR.W $00A11100 ; 009CB2 42 79 00 A1 11 00
ANDI #$FDFF,SR ; 009CB8 02 7C FD FF
MOVEM.L (A7)+,D0 ; 009CBC 4C DF 00 01
RTS ; 009CC0 4E 75

0
source/input.c → source/gen_input.c
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4
source/input.h → source/gen_input.h
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@ -21,8 +21,8 @@
*
****************************************************************************************/
#ifndef _INPUT_HW_H_
#define _INPUT_HW_H_
#ifndef _GEN_INPUT_H_
#define _GEN_INPUT_H_
/* Max. number of devices */
#define MAX_DEVICES (8)

0
source/io.c → source/gen_io.c
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4
source/io.h → source/gen_io.h
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@ -21,8 +21,8 @@
*
****************************************************************************************/
#ifndef _IO_H_
#define _IO_H_
#ifndef _GEN_IO_H_
#define _GEN_IO_H_
#define REGION_USA 0x80
#define REGION_JAPAN_NTSC 0x00

1
source/ngc/config.h
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@ -12,6 +12,7 @@ typedef struct
double psg_preamp;
double fm_preamp;
uint8 boost;
uint8 filter;
uint8 hq_fm;
uint8 fm_core;
int8 sram_auto;

0
source/ngc/gui/fileio.c → source/ngc/fileio.c
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0
source/ngc/gui/fileio.h → source/ngc/fileio.h
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0
source/ngc/gui/memfile.c → source/ngc/memfile.c
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4
source/shared.h
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@ -17,8 +17,8 @@
#include "memz80.h"
#include "membnk.h"
#include "memvdp.h"
#include "io.h"
#include "input.h"
#include "gen_io.h"
#include "gen_input.h"
#include "state.h"
#include "sound.h"
#include "sn76489.h"

4
source/sound/SRC/config.h
View File

@ -49,7 +49,11 @@
#undef HAVE_LIBM
/* Define if you have C99's lrint function. */
#ifdef DOS
#define HAVE_LRINT 0
#else
#define HAVE_LRINT 1
#endif
/* Define if you have C99's lrintf function. */
#define HAVE_LRINTF 1

19
source/sound/fm.c
View File

@ -787,12 +787,29 @@ INLINE void set_tl(FM_CH *CH,FM_SLOT *SLOT , int v)
/* set attack rate & key scale */
INLINE void set_ar_ksr(FM_CH *CH,FM_SLOT *SLOT,int v)
{
SLOT->ar = (v&0x1f) ? (32 + ((v&0x1f)<<1)) : 0;
UINT8 old_KSR = SLOT->KSR;
SLOT->ar = (v&0x1f) ? 32 + ((v&0x1f)<<1) : 0;
SLOT->KSR = 3-(v>>6);
if (SLOT->KSR != old_KSR)
{
CH->SLOT[SLOT1].Incr=-1;
}
/* refresh Attack rate */
if ((SLOT->ar + SLOT->ksr) < 94 /*32+62*/)
{
SLOT->eg_sh_ar = eg_rate_shift [SLOT->ar + SLOT->ksr ];
SLOT->eg_sel_ar = eg_rate_select[SLOT->ar + SLOT->ksr ];
}
else
{
SLOT->eg_sh_ar = 0;
SLOT->eg_sel_ar = 17*RATE_STEPS;
}
}
/* set decay rate */
INLINE void set_dr(FM_SLOT *SLOT,int v)
{

7
source/sound/ym2612.c
View File

@ -2373,11 +2373,8 @@ void YM2612_Update(int **buf, int length)
{
for(i = 0; i < length; i++)
{
long dac = (YM2612.DACdata << 15) - dac_highpass;
dac_highpass += dac >> 9;
dac >>= 15;
buf[0][i] += dac & YM2612.CHANNEL[5].LEFT;
buf[1][i] += dac & YM2612.CHANNEL[5].RIGHT;
buf[0][i] += YM2612.DACdata & YM2612.CHANNEL[5].LEFT;
buf[1][i] += YM2612.DACdata & YM2612.CHANNEL[5].RIGHT;
}
}

14
source/system.c
View File

@ -337,7 +337,8 @@ static void audio_update (void)
int l, r;
double psg_preamp = config.psg_preamp;
double fm_preamp = config.fm_preamp;
uint8 boost = config.boost;
int boost = config.boost;
int filter = config.filter;
#ifdef NGC
int16 *sb = (int16 *) soundbuffer[mixbuffer];
@ -357,8 +358,13 @@ static void audio_update (void)
snd.psg.buffer[i] = 0;
/* single-pole low-pass filter (6 dB/octave) */
ll = (ll + l) >> 1;
rr = (rr + r) >> 1;
if (filter)
{
l = (ll + l) >> 1;
r = (rr + r) >> 1;
ll = l;
rr = r;
}
/* boost volume if asked*/
l = ll * boost;
@ -374,7 +380,7 @@ static void audio_update (void)
#ifdef NGC
*sb++ = r; // RIGHT channel comes first
*sb++ = l;
#else
#elif DOS
snd.buffer[0][i] = l;
snd.buffer[1][i] = r;
#endif

4
source/types.h
View File

@ -16,9 +16,6 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _TYPES_H_
#define _TYPES_H_
#undef uint8
#undef uint16
#undef uint32
@ -30,4 +27,3 @@
#define int16 signed short
#define int32 signed long int
#endif /* _TYPES_H_ */

63
source/unused/makefile.dj2 → source/unused/dos/Makefile
View File

@ -1,6 +1,9 @@
# MekaDrive - Sega Mega Drive emulator
# Makefile for genplus DOS
#
# (c) 1999, 2000, 2001, 2002, 2003 Charles MacDonald
# modified by Eke-Eke <eke_eke31@yahoo.fr>
#
# Defines :
# -DLSB_FIRST - Leave undefined for big-endian processors.
# -DDOS - Enable DOS/x86 specific code.
# -DDEBUG - Enable debugging code
@ -9,20 +12,25 @@
CC = gcc
AS = nasm -f coff
LDFLAGS =
FLAGS = -I. -Icpu -Im68k -Idos -Isound -Icart_hw -Icart_hw\svp \
-Werror -Wall \
-O6 -mcpu=pentium -fomit-frame-pointer \
FLAGS = -I. -I.. -I../cpu -I../m68k -I../dos -I../sound -I../sound/SRC -I../cart_hw -I../cart_hw/svp \
-Wall -g \
-O6 -march=i686 -fomit-frame-pointer \
-DLSB_FIRST -DX86_ASM -DDOS
LIBS = -lalleg -laudio -lz obj/m68k.oa
LIBS = -lalleg -laudio -lz -lm
OBJ = obj/z80.oa \
obj/genesis.o \
OBJ = obj/z80.o
OBJ += obj/m68kcpu.o \
obj/m68kops.o
OBJ += obj/genesis.o \
obj/vdp.o \
obj/render.o \
obj/system.o \
obj/io.o \
obj/input.o \
obj/gen_io.o \
obj/gen_input.o \
obj/mem68k.o \
obj/memz80.o \
obj/membnk.o \
@ -34,6 +42,12 @@ OBJ += obj/sound.o \
obj/sn76489.o \
obj/ym2612.o
OBJ += obj/samplerate.o \
obj/src_linear.o \
obj/src_sinc.o \
obj/src_zoh.o \
OBJ += obj/sram.o \
obj/eeprom.o \
obj/svp.o \
@ -55,33 +69,38 @@ all : $(EXE)
$(EXE) : $(OBJ)
$(CC) -o $(EXE) $(OBJ) $(LIBS) $(LDFLAGS)
obj/%.oa : cpu/%.c cpu/%.h
obj/%.o : ../%.c ../%.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : %.c %.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : asm/%.s
obj/%.o : ../asm/%.s
$(AS) $< -o $@
obj/%.o : sound/%.c sound/%.h
obj/%.o : ../sound/%.c ../sound/%.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : sound/%.c
obj/%.o : ../sound/%.c
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : cart_hw/%.c cart_hw/%.h
obj/%.o : ../sound/SRC/%.c ../sound/SRC/%.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : ../sound/SRC/%.c
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : cart_hw/svp/%.c
obj/%.o : ../cart_hw/%.c ../cart_hw/%.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : cart_hw/svp/%.c cart_hw/svp/%.h
obj/%.o : ../cart_hw/svp/%.c
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : cpu/%.c cpu/%.h
obj/%.o : ../cart_hw/svp/%.c ../cart_hw/svp/%.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : dos/%.c dos/%.h
obj/%.o : ../cpu/%.c ../cpu/%.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : ../m68k/%.c ../m68k/%.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : ./%.c ./%.h
$(CC) -c $< -o $@ $(FLAGS)
pack :

26
source/unused/dos/config.c
View File

@ -1,6 +1,8 @@
#include "osd.h"
#define CONFIG_VERSION "GENPLUS 1.2.1 "
t_option option;
t_config config;
@ -70,9 +72,9 @@ int check_bool(char *token)
void set_option_defaults(void)
{
option.video_driver = GFX_AUTODETECT;
option.video_width = 320;
option.video_height = 240;
option.video_depth = 8;
option.video_width = 640;
option.video_height = 480;
option.video_depth = 16;
option.remap = 1;
option.scanlines = 0;
@ -90,13 +92,16 @@ void set_option_defaults(void)
option.joy_driver = JOY_TYPE_NONE;
}
/* additional options */
void set_config_default()
void set_config_defaults(void)
{
/* version TAG */
strncpy(config.version,CONFIG_VERSION,15);
/* sound options */
config.psg_preamp = 1.5;
config.fm_preamp = 1.0;
config.boost = 1;
config.filter = 0;
config.hq_fm = 1;
config.fm_core = 0;
@ -110,16 +115,15 @@ void set_config_default()
/* display options */
config.xshift = 0;
config.yshift = 0;
config.xscale = 320;
config.yscale = 240;
config.xscale = 0;
config.yscale = 0;
config.aspect = 1;
config.overscan = 1;
config.render = 0;
/* controllers options */
config.sys_type[0] = 0;
config.sys_type[1] = 0;
config.crosshair = 1;
config.gun_cursor = 1;
config.invert_mouse = 0;
}
void print_options(void)
@ -232,7 +236,7 @@ void parse_args(int argc, char **argv)
}
}
//if(option.remap) option.video_depth = 8;
if(option.remap) option.video_depth = 8;
}

13
source/unused/dos/config.h
View File

@ -48,12 +48,17 @@ typedef struct
int softres; /* 1= Allow RUN+SELECT */
} t_option;
/****************************************************************************
* Config Option
*
****************************************************************************/
typedef struct
{
char[10] version;
char version[15];
double psg_preamp;
double fm_preamp;
uint8 boost;
uint8 filter;
uint8 hq_fm;
uint8 fm_core;
int8 sram_auto;
@ -69,8 +74,8 @@ typedef struct
uint8 aspect;
uint8 overscan;
uint8 render;
uint8 sys_type[2];
uint8 crosshair;
uint8 gun_cursor;
uint8 invert_mouse;
} t_config;
/* Global variables */
@ -86,7 +91,7 @@ void parse_args(int argc, char **argv);
void print_options(void);
int check_bool(char *token);
void set_option_defaults(void);
void set_config_default(void);
void set_config_defaults(void);
#endif /* _CONFIG_H_ */

176
source/unused/dos/dos.c
View File

@ -14,7 +14,7 @@ PALETTE gen_pal;
BITMAP *gen_bmp;
volatile int frame_skip = 1;
int frame_count = 0;
volatile int frame_count = 0;
volatile int frames_rendered = 0;
volatile int frame_rate = 0;
volatile int tick_count = 0;
@ -22,7 +22,7 @@ volatile int old_tick_count = 0;
volatile int skip = 0;
int quit = 0;
unsigned char buf[0x26000];
unsigned char buf[0x24000];
uint8 log_error = 1;
uint8 debug_on = 0;
@ -50,7 +50,8 @@ void msg_print(int x, int y, char *fmt, ...)
int main (int argc, char *argv[])
{
if(argc < 2) {
if(argc < 2)
{
printf("Genesis Plus - Sega Mega Drive emulator (v1.0)\n");
printf("(C) 1999, 2000, 2001, 2002, 2003 Charles MacDonald\n");
printf("Usage %s file.[bin|smd|zip] [-options]\n", argv[0]);
@ -68,17 +69,23 @@ int main (int argc, char *argv[])
cart_rom = malloc(0xA00000);
memset(cart_rom, 0, 0xA00000);
set_config_default();
if(!load_rom(argv[1]))
{
printf("File `%s' not found.\n", argv[1]);
return (0);
}
/* load SRAM */
FILE *f = fopen("./game.srm", "rb");
if (f!=NULL)
{
fread(&sram.sram,0x10000,1, f);
fclose(f);
}
/* load BIOS */
memset(bios_rom, 0, sizeof(bios_rom));
FILE *f = fopen("./BIOS.bin", "rb");
f = fopen("./BIOS.bin", "rb");
if (f!=NULL)
{
fread(&bios_rom, 0x800,1,f);
@ -94,30 +101,25 @@ int main (int argc, char *argv[])
}
else config.bios_enabled = 0;
/* initialize genesis VM */
init_machine();
set_config_default();
/* default config */
set_config_defaults();
input.system[0] = SYSTEM_GAMEPAD;
input.system[1] = SYSTEM_GAMEPAD;
system_init();
/* initialize emulation */
int buf_len = (option.sndrate * 4) / vdp_rate;
snd.buffer[0] = malloc (buf_len/2);
snd.buffer[1] = malloc (buf_len/2);
memset (snd.buffer[0], 0, buf_len/2);
memset (snd.buffer[1], 0, buf_len/2);
system_init();
audio_init(option.sndrate);
f = fopen("./game.srm", "rb");
if (f!=NULL)
{
fread(&sram.sram,0x10000,1, f);
fclose(f);
}
system_reset();
/* emulation loop */
for(;;)
{
frame_count += 1;
@ -142,10 +144,8 @@ int main (int argc, char *argv[])
{
fwrite(&sram.sram, 0x10000,1,f);
fclose(f);
}
trash_machine();
system_shutdown();
error_shutdown();
@ -185,6 +185,11 @@ int save_file(char *filename, char *buf, int size)
static int joynum = 0;
uint8 delay = 36;
int gun_offset = 0;
int old_mouse_x = 0;
int old_mouse_y = 0;
void dos_update_input(void)
{
FILE *f;
@ -200,6 +205,24 @@ void dos_update_input(void)
if (joynum > MAX_DEVICES - 1) joynum = 0;
}
if(check_key(KEY_F12))
{
input.x_offset ++;
if (input.x_offset > 0xff) input.x_offset = 0;
}
if(check_key(KEY_F11))
{
joynum ++;
if (joynum > MAX_DEVICES - 1) joynum = 0;
while (input.dev[joynum] == NO_DEVICE)
{
joynum ++;
if (joynum > MAX_DEVICES - 1) joynum = 0;
}
}
input.pad[joynum] = 0;
/* Is the joystick being used ? */
@ -247,61 +270,87 @@ void dos_update_input(void)
if(joy[1].button[7].b) input.pad[1] |= INPUT_MODE;
}
}
/* keyboard */
if(key[KEY_UP]) input.pad[joynum] |= INPUT_UP;
else
if(key[KEY_DOWN]) input.pad[joynum] |= INPUT_DOWN;
if(key[KEY_LEFT]) input.pad[joynum] |= INPUT_LEFT;
else
if(key[KEY_RIGHT]) input.pad[joynum] |= INPUT_RIGHT;
if(key[KEY_A]) input.pad[joynum] |= INPUT_A;
if(key[KEY_S]) input.pad[joynum] |= INPUT_B;
if(key[KEY_D]) input.pad[joynum] |= INPUT_C;
if(key[KEY_Z]) input.pad[joynum] |= INPUT_X;
if(key[KEY_X]) input.pad[joynum] |= INPUT_Y;
if(key[KEY_C]) input.pad[joynum] |= INPUT_Z;
if(key[KEY_V]) input.pad[joynum] |= INPUT_MODE;
if(key[KEY_UP]) input.pad[joynum] |= INPUT_UP;
else
if(key[KEY_DOWN]) input.pad[joynum] |= INPUT_DOWN;
if(key[KEY_LEFT]) input.pad[joynum] |= INPUT_LEFT;
else
if(key[KEY_RIGHT]) input.pad[joynum] |= INPUT_RIGHT;
if(check_key(KEY_A)) error("ButtonA pressed\n");
if(key[KEY_A]) {
input.pad[joynum] |= INPUT_A;
}
if(key[KEY_S]) input.pad[joynum] |= INPUT_B;
if(key[KEY_D]) input.pad[joynum] |= INPUT_C;
if(check_key(KEY_F)) error("start pressed\n");
if(key[KEY_F]) {
if(key[KEY_F])
{
input.pad[joynum] |= INPUT_START;
error("start pressed\n");
}
extern uint8 pico_current;
if (input.dev[joynum] == DEVICE_LIGHTGUN)
{
/* Poll mouse if necessary */
if(mouse_needs_poll() == TRUE)
poll_mouse();
/* Calculate X Y axis values */
input.analog[joynum - 4][0] = (mouse_x * bitmap.viewport.w) / SCREEN_W;
input.analog[joynum - 4][1] = (mouse_y * bitmap.viewport.h) / SCREEN_H;
/* Calculate X axis value */
input.analog[joynum-4][0] = (mouse_x * bitmap.viewport.w)/SCREEN_W;;
/* Calculate Y axis value */
input.analog[joynum-4][1] = (mouse_y * bitmap.viewport.h)/SCREEN_H;;
/* Map mouse buttons to player #1 inputs */
if(mouse_b & 4) input.pad[joynum] |= INPUT_B;
if(mouse_b & 2) input.pad[joynum] |= INPUT_C;
if(mouse_b & 4) input.pad[joynum] |= INPUT_C;
if(mouse_b & 2) input.pad[joynum] |= INPUT_B;
if(mouse_b & 1) input.pad[joynum] |= INPUT_A;
if(key[KEY_F]) input.pad[joynum] |= INPUT_START;
}
else if (input.dev[joynum] == DEVICE_MOUSE)
{
/* Poll mouse if necessary */
if(mouse_needs_poll() == TRUE)
poll_mouse();
get_mouse_mickeys(&input.analog[2][0], &input.analog[2][1]);
input.analog[2][0] = (input.analog[2][0] * 256) / SCREEN_W;
input.analog[2][1] = (input.analog[2][1] * 256) / SCREEN_H;
if (config.invert_mouse) input.analog[2][1] = 0 - input.analog[2][1];
/* Map mouse buttons to player #1 inputs */
if(mouse_b & 4) input.pad[joynum] |= INPUT_C;
if(mouse_b & 1) input.pad[joynum] |= INPUT_B;
if(mouse_b & 2) input.pad[joynum] |= INPUT_A;
if(key[KEY_F]) input.pad[joynum] |= INPUT_START;
}
else if (system_hw == SYSTEM_PICO)
{
/* Poll mouse if necessary */
if(mouse_needs_poll() == TRUE)
poll_mouse();
/* Calculate X Y axis values */
input.analog[0][0] = 0x3c + (mouse_x * (0x17c-0x03c+1)) / SCREEN_W;
input.analog[0][1] = 0x1fc + (mouse_y * (0x2f7-0x1fc+1)) / SCREEN_H;
/* Calculate X axis value */
input.analog[0][0] = 0x3c + (mouse_x * (0x17c - 0x3c + 1) / SCREEN_W);
/* Calculate Y axis value */
input.analog[0][1] = 0x1fc + (mouse_y* (0x3f3 - 0x1fc + 1) / SCREEN_H);
/* Map mouse buttons to player #1 inputs */
if(mouse_b & 4) input.pad[joynum] |= INPUT_START;
if(mouse_b & 2) input.pad[joynum] |= INPUT_A;
if(mouse_b & 1) input.pad[joynum] |= INPUT_B;
if(mouse_b & 2) input.pad[0] |= INPUT_B;
if(mouse_b & 1) input.pad[0] |= INPUT_A;
if(mouse_b & 4) pico_current++;
if (pico_current > 6) pico_current = 0;
}
if(check_key(KEY_F1)) frame_skip = 1;
if(check_key(KEY_F2)) frame_skip = 2;
if(check_key(KEY_F3)) frame_skip = 3;
@ -315,11 +364,7 @@ void dos_update_input(void)
f = fopen("game.gpz","r+b");
if (f)
{
int len = 0;
fread(&len, 4, 1, f);
fclose(f);
fopen("game.gpz","r+b");
fread(&buf, len+4, 1, f);
fread(&buf, 0x23000, 1, f);
state_load(buf);
fclose(f);
}
@ -330,8 +375,8 @@ void dos_update_input(void)
f = fopen("game.gpz","w+b");
if (f)
{
int size = state_save(buf);
fwrite(&buf, size, 1, f);
state_save(buf);
fwrite(&buf, 0x23000, 1, f);
fclose(f);
}
}
@ -339,9 +384,13 @@ void dos_update_input(void)
if(check_key(KEY_F9))
{
vdp_pal ^= 1;
/* reinitialize timings */
system_init ();
audio_init(option.sndrate);
audio_init(48000);
fm_restore();
/* reinitialize HVC tables */
vctab = (vdp_pal) ? ((reg[1] & 8) ? vc_pal_240 : vc_pal_224) : vc_ntsc_224;
hctab = (reg[12] & 1) ? cycle2hc40 : cycle2hc32;
@ -350,29 +399,12 @@ void dos_update_input(void)
bitmap.viewport.y = config.overscan ? (((reg[1] & 8) ? 0 : 8) + (vdp_pal ? 24 : 0)) : 0;
bitmap.viewport.changed = 1;
}
if(check_key(KEY_F10))
{
system_reset();
if(check_key(KEY_F11))
{
joynum ++;
if (joynum > MAX_DEVICES - 1) joynum = 0;
while (input.dev[joynum] == NO_DEVICE)
{
joynum ++;
if (joynum > MAX_DEVICES - 1) joynum = 0;
}
}
if(check_key(KEY_F12))
{
input.x_offset ++;
if (input.x_offset > 0xff) input.x_offset = 0;
}
if(check_key(KEY_TAB))
resetline = (int) ((double) (lines_per_frame - 1) * rand() / (RAND_MAX + 1.0));
if(check_key(KEY_TAB)) set_softreset();
}
void dos_update_audio(void)
@ -470,7 +502,7 @@ void dos_update_video(void)
}*/
msg_print(2, 2, "%d fps", frame_rate);
msg_print(2, 2, "offset = 0x%x", hc_latch/*frame_rate*/);
if(option.scanlines)
{

20
source/unused/dos/dos.h
View File

@ -17,8 +17,26 @@ void make_vdp_palette(void);
void dos_change_mode(void);
int check_key(int code);
#define update_input() dos_update_input()
#define MAX_INPUTS 8
/* options */
extern uint8 overscan;
extern uint8 use_480i;
extern uint8 FM_GENS;
extern uint8 hq_fm;
extern uint8 ssg_enabled;
extern double psg_preamp;
extern double fm_preamp;
extern uint8 boost;
extern uint8 region_detect;
extern uint8 sys_type[2];
extern uint8 force_dtack;
extern uint8 dmatiming;
extern uint8 vdptiming;
extern uint8 debug_on;
extern uint8 log_error;
extern int frame_count;
#endif /* _DOS_H_ */

0
source/unused/fileio.c → source/unused/dos/fileio.c
View File

0
source/unused/fileio.h → source/unused/dos/fileio.h
View File

3
source/unused/dos/osd.h
View File

@ -17,6 +17,5 @@
#include "unzip.h"
#include "fileio.h"
#define update_input() dos_update_input()
volatile int frame_count;
#endif /* _OSD_H_ */

3
source/unused/dos/readme-djgpp.txt Normal file
View File

@ -0,0 +1,3 @@
To be compiled with DJGPP.
You will also need to install Allegro and Seal libraries.
Zlib is required for zipped rom support.

1
source/unused/make.bat
View File

@ -1 +0,0 @@
@make.exe -f makefile.mgw %1

107
source/unused/makefile.mgw
View File

@ -1,107 +0,0 @@
# Genesis Plus - Sega Mega Drive emulator
# (c) 1999, 2000, 2001, 2002, 2003 Charles MacDonald
# -DLSB_FIRST - Leave undefined for big-endian processors.
# -DDEBUG - Enable debugging code
# -DX86_ASM - Enable inline x86 assembly code in Z80 emulator
CC = gcc
AS = nasm -f coff
LDFLAGS =
FLAGS = -I. -Icpu -Im68k -Iwin -Isound -Icart_hw -Icart_hw\svp \
-Ic:/SDL/include/SDL \
-Werror -Wall \
-DLSB_FIRST -DX86_ASM \
-O6 -march=pentium -fomit-frame-pointer
LIBS = -lz -lm -lmingw32 -Ld:/sdl/lib -lSDLmain -lSDL obj/m68k.oa
OBJ = obj/z80.oa \
obj/genesis.o \
obj/vdp.o \
obj/render.o \
obj/system.o \
obj/io.o \
obj/input.o \
obj/mem68k.o \
obj/memz80.o \
obj/membnk.o \
obj/memvdp.o \
obj/state.o
OBJ += obj/sound.o \
obj/fm.o \
obj/sn76489.o \
obj/ym2612.o
OBJ += obj/sram.o \
obj/eeprom.o \
obj/svp.o \
obj/ssp16.o \
obj/cart_hw.o
OBJ += obj/main.o \
obj/error.o \
obj/fileio.o \
obj/unzip.o \
obj/loadrom.o
EXE = gen.exe
all : $(EXE)
$(EXE) : $(OBJ) shared.h
$(CC) -o $(EXE) $(OBJ) $(LIBS) $(LDFLAGS)
obj/%.oa : cpu/%.c cpu/%.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : %.c %.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : win/%.s
$(AS) $< -o $@
obj/%.o : sound/%.c sound/%.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : cpu/%.c cpu/%.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : win/%.c win/%.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : cart_hw/%.c cart_hw/%.h
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : cart_hw/svp/%.c
$(CC) -c $< -o $@ $(FLAGS)
obj/%.o : cart_hw/svp/%.c cart_hw/svp/%.h
$(CC) -c $< -o $@ $(FLAGS)
pack :
strip $(EXE)
upx -1 $(EXE)
clean :
rm -f obj/*.o
rm -f *.bak
rm -f *.exe
rm -f *.log
rm -f *.wav
rm -f *.zip
cleancpu :
rm -f obj/z80.oa
makedir :
mkdir obj
archive:
pk -add -max -excl=bak -excl=out \
-excl=test -excl=obj mdsrc.zip -dir=current
#
# end of makefile
#

1301
source/unused/unzip.c
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274
source/unused/unzip.h
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@ -1,274 +0,0 @@
/* unzip.h -- IO for uncompress .zip files using zlib
Version 0.15 beta, Mar 19th, 1998,
Copyright (C) 1998 Gilles Vollant
This unzip package allow extract file from .ZIP file, compatible with PKZip 2.04g
WinZip, InfoZip tools and compatible.
Encryption and multi volume ZipFile (span) are not supported.
Old compressions used by old PKZip 1.x are not supported
THIS IS AN ALPHA VERSION. AT THIS STAGE OF DEVELOPPEMENT, SOMES API OR STRUCTURE
CAN CHANGE IN FUTURE VERSION !!
I WAIT FEEDBACK at mail info@winimage.com
Visit also http://www.winimage.com/zLibDll/unzip.htm for evolution
Condition of use and distribution are the same than zlib :
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/* for more info about .ZIP format, see
ftp://ftp.cdrom.com/pub/infozip/doc/appnote-970311-iz.zip
PkWare has also a specification at :
ftp://ftp.pkware.com/probdesc.zip */
#ifndef _unz_H
#define _unz_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _ZLIB_H
#include "zlib.h"
#endif
#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
/* like the STRICT of WIN32, we define a pointer that cannot be converted
from (void*) without cast */
typedef struct TagunzFile__ { int unused; } unzFile__;
typedef unzFile__ *unzFile;
#else
typedef voidp unzFile;
#endif
#define UNZ_OK (0)
#define UNZ_END_OF_LIST_OF_FILE (-100)
#define UNZ_ERRNO (Z_ERRNO)
#define UNZ_EOF (0)
#define UNZ_PARAMERROR (-102)
#define UNZ_BADZIPFILE (-103)
#define UNZ_INTERNALERROR (-104)
#define UNZ_CRCERROR (-105)
/* tm_unz contain date/time info */
typedef struct tm_unz_s
{
uInt tm_sec; /* seconds after the minute - [0,59] */
uInt tm_min; /* minutes after the hour - [0,59] */
uInt tm_hour; /* hours since midnight - [0,23] */
uInt tm_mday; /* day of the month - [1,31] */
uInt tm_mon; /* months since January - [0,11] */
uInt tm_year; /* years - [1980..2044] */
} tm_unz;
/* unz_global_info structure contain global data about the ZIPfile
These data comes from the end of central dir */
typedef struct unz_global_info_s
{
uLong number_entry; /* total number of entries in
the central dir on this disk */
uLong size_comment; /* size of the global comment of the zipfile */
} unz_global_info;
/* unz_file_info contain information about a file in the zipfile */
typedef struct unz_file_info_s
{
uLong version; /* version made by 2 bytes */
uLong version_needed; /* version needed to extract 2 bytes */
uLong flag; /* general purpose bit flag 2 bytes */
uLong compression_method; /* compression method 2 bytes */
uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
uLong crc; /* crc-32 4 bytes */
uLong compressed_size; /* compressed size 4 bytes */
uLong uncompressed_size; /* uncompressed size 4 bytes */
uLong size_filename; /* filename length 2 bytes */
uLong size_file_extra; /* extra field length 2 bytes */
uLong size_file_comment; /* file comment length 2 bytes */
uLong disk_num_start; /* disk number start 2 bytes */
uLong internal_fa; /* internal file attributes 2 bytes */
uLong external_fa; /* external file attributes 4 bytes */
tm_unz tmu_date;
} unz_file_info;
extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1,
const char* fileName2,
int iCaseSensitivity));
/*
Compare two filename (fileName1,fileName2).
If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
or strcasecmp)
If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
(like 1 on Unix, 2 on Windows)
*/
extern unzFile ZEXPORT unzOpen OF((const char *path));
/*
Open a Zip file. path contain the full pathname (by example,
on a Windows NT computer "c:\\zlib\\zlib111.zip" or on an Unix computer
"zlib/zlib111.zip".
If the zipfile cannot be opened (file don't exist or in not valid), the
return value is NULL.
Else, the return value is a unzFile Handle, usable with other function
of this unzip package.
*/
extern int ZEXPORT unzClose OF((unzFile file));
/*
Close a ZipFile opened with unzipOpen.
If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
return UNZ_OK if there is no problem. */
extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
unz_global_info *pglobal_info));
/*
Write info about the ZipFile in the *pglobal_info structure.
No preparation of the structure is needed
return UNZ_OK if there is no problem. */
extern int ZEXPORT unzGetGlobalComment OF((unzFile file,
char *szComment,
uLong uSizeBuf));
/*
Get the global comment string of the ZipFile, in the szComment buffer.
uSizeBuf is the size of the szComment buffer.
return the number of byte copied or an error code <0
*/
/***************************************************************************/
/* Unzip package allow you browse the directory of the zipfile */
extern int ZEXPORT unzGoToFirstFile OF((unzFile file));
/*
Set the current file of the zipfile to the first file.
return UNZ_OK if there is no problem
*/
extern int ZEXPORT unzGoToNextFile OF((unzFile file));
/*
Set the current file of the zipfile to the next file.
return UNZ_OK if there is no problem
return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
*/
extern int ZEXPORT unzLocateFile OF((unzFile file,
const char *szFileName,
int iCaseSensitivity));
/*
Try locate the file szFileName in the zipfile.
For the iCaseSensitivity signification, see unzStringFileNameCompare
return value :
UNZ_OK if the file is found. It becomes the current file.
UNZ_END_OF_LIST_OF_FILE if the file is not found
*/
extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file,
unz_file_info *pfile_info,
char *szFileName,
uLong fileNameBufferSize,
void *extraField,
uLong extraFieldBufferSize,
char *szComment,
uLong commentBufferSize));
/*
Get Info about the current file
if pfile_info!=NULL, the *pfile_info structure will contain somes info about
the current file
if szFileName!=NULL, the filemane string will be copied in szFileName
(fileNameBufferSize is the size of the buffer)
if extraField!=NULL, the extra field information will be copied in extraField
(extraFieldBufferSize is the size of the buffer).
This is the Central-header version of the extra field
if szComment!=NULL, the comment string of the file will be copied in szComment
(commentBufferSize is the size of the buffer)
*/
/***************************************************************************/
/* for reading the content of the current zipfile, you can open it, read data
from it, and close it (you can close it before reading all the file)
*/
extern int ZEXPORT unzOpenCurrentFile OF((unzFile file));
/*
Open for reading data the current file in the zipfile.
If there is no error, the return value is UNZ_OK.
*/
extern int ZEXPORT unzCloseCurrentFile OF((unzFile file));
/*
Close the file in zip opened with unzOpenCurrentFile
Return UNZ_CRCERROR if all the file was read but the CRC is not good
*/
extern int ZEXPORT unzReadCurrentFile OF((unzFile file,
voidp buf,
unsigned len));
/*
Read bytes from the current file (opened by unzOpenCurrentFile)
buf contain buffer where data must be copied
len the size of buf.
return the number of byte copied if somes bytes are copied
return 0 if the end of file was reached
return <0 with error code if there is an error
(UNZ_ERRNO for IO error, or zLib error for uncompress error)
*/
extern z_off_t ZEXPORT unztell OF((unzFile file));
/*
Give the current position in uncompressed data
*/
extern int ZEXPORT unzeof OF((unzFile file));
/*
return 1 if the end of file was reached, 0 elsewhere
*/
extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file,
voidp buf,
unsigned len));
/*
Read extra field from the current file (opened by unzOpenCurrentFile)
This is the local-header version of the extra field (sometimes, there is
more info in the local-header version than in the central-header)
if buf==NULL, it return the size of the local extra field
if buf!=NULL, len is the size of the buffer, the extra header is copied in
buf.
the return value is the number of bytes copied in buf, or (if <0)
the error code
*/
#ifdef __cplusplus
}
#endif
#endif /* _unz_H */

105
source/unused/win/Makefile Normal file
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@ -0,0 +1,105 @@
# Makefile for genplus SDL
#
# (c) 1999, 2000, 2001, 2002, 2003 Charles MacDonald
# modified by Eke-Eke <eke_eke31@yahoo.fr>
#
# Defines :
# LSB_FIRST : for little endian systems.
# X86_ASM : enable x86 assembly optimizations
NAME = gp_sdl
CC = gcc
CFLAGS = `sdl-config --cflags` -O6 -march=i686 -fomit-frame-pointer
DEFINES = -DLSB_FIRST -DX86_ASM
INCLUDES = -I. -I.. -I../cpu -I../m68k -I../dos -I../sound -I../sound/SRC -I../cart_hw -I../cart_hw/svp
LIBS = `sdl-config --libs` -lz -lm
OBJECTS = obj/z80.o
OBJECTS += obj/m68kcpu.o \
obj/m68kops.o
OBJECTS += obj/genesis.o \
obj/vdp.o \
obj/render.o \
obj/system.o \
obj/gen_io.o \
obj/gen_input.o \
obj/mem68k.o \
obj/memz80.o \
obj/membnk.o \
obj/memvdp.o \
obj/state.o
OBJECTS += obj/sound.o \
obj/fm.o \
obj/sn76489.o \
obj/ym2612.o
OBJECTS += obj/samplerate.o \
obj/src_linear.o \
obj/src_sinc.o \
obj/src_zoh.o \
OBJECTS += obj/sram.o \
obj/eeprom.o \
obj/svp.o \
obj/ssp16.o \
obj/cart_hw.o
OBJECTS += obj/main.o \
obj/config.o \
obj/error.o \
obj/unzip.o \
obj/fileio.o \
obj/loadrom.o
all: $(NAME)
$(NAME): $(OBJECTS)
$(CC) $(LDFLAGS) $(OBJECTS) $(LIBS) -o $@
obj/%.o : ../%.c ../%.h
$(CC) -c $(CFLAGS) $(INCLUDES) $(DEFINES) $< -o $@
obj/%.o : ../asm/%.s
$(AS) $< -o $@
obj/%.o : ../sound/%.c ../sound/%.h
$(CC) -c $(CFLAGS) $(INCLUDES) $(DEFINES) $< -o $@
obj/%.o : ../sound/%.c
$(CC) -c $(CFLAGS) $(INCLUDES) $(DEFINES) $< -o $@
obj/%.o : ../sound/SRC/%.c ../sound/SRC/%.h
$(CC) -c $(CFLAGS) $(INCLUDES) $(DEFINES) $< -o $@
obj/%.o : ../sound/SRC/%.c
$(CC) -c $(CFLAGS) $(INCLUDES) $(DEFINES) $< -o $@
obj/%.o : ../cart_hw/%.c ../cart_hw/%.h
$(CC) -c $(CFLAGS) $(INCLUDES) $(DEFINES) $< -o $@
obj/%.o : ../cart_hw/svp/%.c
$(CC) -c $(CFLAGS) $(INCLUDES) $(DEFINES) $< -o $@
obj/%.o : ../cart_hw/svp/%.c ../cart_hw/svp/%.h
$(CC) -c $(CFLAGS) $(INCLUDES) $(DEFINES) $< -o $@
obj/%.o : ../cpu/%.c ../cpu/%.h
$(CC) -c $(CFLAGS) $(INCLUDES) $(DEFINES) $< -o $@
obj/%.o : ../m68k/%.c ../m68k/%.h
$(CC) -c $(CFLAGS) $(INCLUDES) $(DEFINES) $< -o $@
obj/%.o : ./%.c ./%.h
$(CC) -c $(CFLAGS) $(INCLUDES) $(DEFINES) $< -o $@
pack :
strip $(EXE)
upx -1 $(EXE)
clean:
rm -f $(OBJECTS) $(NAME)

43
source/unused/win/config.c Normal file
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@ -0,0 +1,43 @@
#include "osd.h"
#define CONFIG_VERSION "GENPLUS 1.2.1 "
t_config config;
void set_config_defaults(void)
{
/* version TAG */
strncpy(config.version,CONFIG_VERSION,15);
/* sound options */
config.psg_preamp = 1.5;
config.fm_preamp = 1.0;
config.boost = 1;
config.filter = 0;
config.hq_fm = 1;
config.fm_core = 0;
/* system options */
config.freeze_auto = -1;
config.sram_auto = -1;
config.region_detect = 0;
config.force_dtack = 0;
config.bios_enabled = 0;
/* display options */
config.xshift = 0;
config.yshift = 0;
config.xscale = 0;
config.yscale = 0;
config.aspect = 1;
config.overscan = 1;
config.render = 0;
/* controllers options */
config.gun_cursor = 1;
config.invert_mouse = 0;
}

39
source/unused/win/config.h Normal file
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@ -0,0 +1,39 @@
#ifndef _CONFIG_H_
#define _CONFIG_H_
/****************************************************************************
* Config Option
*
****************************************************************************/
typedef struct
{
char version[15];
double psg_preamp;
double fm_preamp;
uint8 boost;
uint8 filter;
uint8 hq_fm;
uint8 fm_core;
int8 sram_auto;
int8 freeze_auto;
uint8 region_detect;
uint8 force_dtack;
uint8 bios_enabled;
int16 xshift;
int16 yshift;
int16 xscale;
int16 yscale;
uint8 tv_mode;
uint8 aspect;
uint8 overscan;
uint8 render;
uint8 gun_cursor;
uint8 invert_mouse;
} t_config;
/* Global variables */
extern t_config config;
#endif /* _CONFIG_H_ */

13
source/unused/win/error.c
View File

@ -1,9 +1,5 @@
/*
error.c --
Error logging
*/
#include "shared.h"
#include "osd.h"
FILE *error_log;
@ -15,25 +11,20 @@ struct {
void error_init(void)
{
#ifdef DEBUG
error_log = fopen("error.log","w");
#endif
}
void error_shutdown(void)
{
#ifdef DEBUG
if(error_log) fclose(error_log);
#endif
}
void error(char *format, ...)
{
#ifdef DEBUG
if (!log_error) return;
va_list ap;
va_start(ap, format);
if(error_log) vfprintf(error_log, format, ap);
va_end(ap);
#endif
}

151
source/unused/win/fileio.c Normal file
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@ -0,0 +1,151 @@
#include "shared.h"
/*
Load a normal file, or ZIP/GZ archive.
Returns NULL if an error occured.
*/
uint8 *load_archive(char *filename, int *file_size)
{
int size = 0;
uint8 *buf = NULL;
if(check_zip(filename))
{
unzFile *fd = NULL;
unz_file_info info;
int ret = 0;
/* Attempt to open the archive */
fd = unzOpen(filename);
if(!fd) return (NULL);
/* Go to first file in archive */
ret = unzGoToFirstFile(fd);
if(ret != UNZ_OK)
{
unzClose(fd);
return (NULL);
}
ret = unzGetCurrentFileInfo(fd, &info, NULL, 0, NULL, 0, NULL, 0);
if(ret != UNZ_OK)
{
unzClose(fd);
return (NULL);
}
/* Open the file for reading */
ret = unzOpenCurrentFile(fd);
if(ret != UNZ_OK)
{
unzClose(fd);
return (NULL);
}
/* Allocate file data buffer */
size = info.uncompressed_size;
buf = malloc(size);
if(!buf)
{
unzClose(fd);
return (NULL);
}
/* Read (decompress) the file */
ret = unzReadCurrentFile(fd, buf, info.uncompressed_size);
if(ret != info.uncompressed_size)
{
free(buf);
unzCloseCurrentFile(fd);
unzClose(fd);
return (NULL);
}
/* Close the current file */
ret = unzCloseCurrentFile(fd);
if(ret != UNZ_OK)
{
free(buf);
unzClose(fd);
return (NULL);
}
/* Close the archive */
ret = unzClose(fd);
if(ret != UNZ_OK)
{
free(buf);
return (NULL);
}
/* Update file size and return pointer to file data */
*file_size = size;
return (buf);
}
else
{
gzFile *gd = NULL;
/* Open file */
gd = gzopen(filename, "rb");
if(!gd) return (0);
/* Get file size */
size = gzsize(gd);
/* Allocate file data buffer */
buf = malloc(size);
if(!buf)
{
gzclose(gd);
return (0);
}
/* Read file data */
gzread(gd, buf, size);
/* Close file */
gzclose(gd);
/* Update file size and return pointer to file data */
*file_size = size;
return (buf);
}
}
/*
Verifies if a file is a ZIP archive or not.
Returns: 1= ZIP archive, 0= not a ZIP archive
*/
int check_zip(char *filename)
{
uint8 buf[2];
FILE *fd = NULL;
fd = fopen(filename, "rb");
if(!fd) return (0);
fread(buf, 2, 1, fd);
fclose(fd);
if(memcmp(buf, "PK", 2) == 0) return (1);
return (0);
}
/*
Returns the size of a GZ compressed file.
*/
int gzsize(gzFile *gd)
{
#define CHUNKSIZE (0x10000)
int size = 0, length = 0;
unsigned char buffer[CHUNKSIZE];
gzrewind(gd);
do {
size = gzread(gd, buffer, CHUNKSIZE);
if(size <= 0) break;
length += size;
} while (!gzeof(gd));
gzrewind(gd);
return (length);
#undef CHUNKSIZE
}

14
source/unused/win/fileio.h Normal file
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@ -0,0 +1,14 @@
#ifndef _FILEIO_H_
#define _FILEIO_H_
/* Global variables */
extern int cart_size;
extern char cart_name[0x100];
/* Function prototypes */
uint8 *load_archive(char *filename, int *file_size);
int load_cart(char *filename);
int check_zip(char *filename);
int gzsize(gzFile *gd);
#endif /* _FILEIO_H_ */

98
source/unused/win/main.c
View File

@ -11,18 +11,6 @@ int frame_count = 0;
int update_input(void);
unsigned char *keystate;
/* Options default */
uint8 overscan = 1;
uint8 use_480i = 1;
uint8 FM_GENS = 1;
uint8 hq_fm = 1;
double psg_preamp = 0.5;
double fm_preamp = 1.0;
uint8 boost = 1;
uint8 region_detect = 0;
uint8 sys_type[2] = {0,0};
uint8 force_dtack = 0;
uint8 log_error = 1;
uint8 debug_on = 0;
@ -63,6 +51,8 @@ int main (int argc, char **argv)
}
/* Load game */
cart_rom = malloc(0xA00000);
memset(cart_rom, 0, 0xA00000);
if(!load_rom(argv[1]))
{
char caption[256];
@ -71,30 +61,44 @@ int main (int argc, char **argv)
exit(1);
}
viewport.x = 0;
viewport.y = 0;
viewport.w = 256;
viewport.h = 224;
/* load SRAM */
FILE *f = fopen("./game.srm", "rb");
if (f!=NULL)
{
fread(&sram.sram,0x10000,1, f);
fclose(f);
}
src.x = 32;
src.y = 0;
src.w = viewport.w;
src.h = viewport.h;
/* load BIOS */
memset(bios_rom, 0, sizeof(bios_rom));
f = fopen("./BIOS.bin", "rb");
if (f!=NULL)
{
fread(&bios_rom, 0x800,1,f);
fclose(f);
int i;
for(i = 0; i < 0x800; i += 2)
{
uint8 temp = bios_rom[i];
bios_rom[i] = bios_rom[i+1];
bios_rom[i+1] = temp;
}
config.bios_enabled = 3;
}
else config.bios_enabled = 0;
/* initialize SDL */
viewport.w = 640;
viewport.h = 480;
if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) < 0)
{
exit(1);
}
SDL_WM_SetCaption("Genesis Plus/SDL", NULL);
screen = SDL_SetVideoMode(viewport.w, viewport.h, 16, SDL_SWSURFACE);
viewport.x = 0;
viewport.y = 0;
screen = SDL_SetVideoMode(viewport.w, viewport.h, 16, SDL_HWSURFACE);
bmp = SDL_CreateRGBSurface(SDL_SWSURFACE, 1024, 512, 16, 0xF800, 0x07E0, 0x001F, 0x0000);
/* initialize Genesis screen */
memset(&bitmap, 0, sizeof(t_bitmap));
bitmap.width = 1024;
bitmap.height = 512;
@ -104,19 +108,30 @@ int main (int argc, char **argv)
bitmap.data = (unsigned char *)bmp->pixels;
bitmap.viewport.w = 256;
bitmap.viewport.h = 224;
bitmap.viewport.x = 0x20;
bitmap.viewport.y = 0x00;
bitmap.viewport.x = 0;
bitmap.viewport.y = 0;
bitmap.remap = 1;
/* default config */
set_config_defaults();
input.system[0] = SYSTEM_GAMEPAD;
input.system[1] = SYSTEM_GAMEPAD;
/* initialize emulation */
int buf_len = (44100 * 4) / vdp_rate;
snd.buffer[0] = malloc (buf_len/2);
snd.buffer[1] = malloc (buf_len/2);
memset (snd.buffer[0], 0, buf_len/2);
memset (snd.buffer[1], 0, buf_len/2);
system_init();
audio_init(44100);
system_reset();
SDL_SetTimer(1000/60, fps_callback);
/* emulation loop */
SDL_SetTimer(1000/60, fps_callback);
while(running)
{
running = update_input();
while (SDL_PollEvent(&event))
{
switch(event.type)
@ -141,25 +156,24 @@ int main (int argc, char **argv)
{
frame_count++;
update_input();
if(!system_frame(0))
system_reset();
if(bitmap.viewport.changed)
{
bitmap.viewport.changed = 0;
src.w = bitmap.viewport.w;
src.h = bitmap.viewport.h;
viewport.w = bitmap.viewport.w;
viewport.h = bitmap.viewport.h;
screen = SDL_SetVideoMode(bitmap.viewport.w, bitmap.viewport.h, 16, SDL_SWSURFACE);
}
src.w = (bitmap.viewport.w + 2 * bitmap.viewport.x);
src.h = (bitmap.viewport.h + 2 * bitmap.viewport.y) << (interlaced ? 1:0);
viewport.w = src.w;
viewport.h = src.h;
viewport.x = (640 - viewport.w) / 2;
viewport.y = (480 - viewport.h) / 2;
//screen = SDL_SetVideoMode(bitmap.viewport.w, bitmap.viewport.h, 16, SDL_SWSURFACE);
SDL_BlitSurface(bmp, &src, screen, &viewport);
SDL_UpdateRect(screen, viewport.x, viewport.y, viewport.w, viewport.h);
}
}
}
system_shutdown();
SDL_Quit();
@ -214,5 +228,3 @@ int update_input(void)
if(keystate[SDLK_ESCAPE]) running = 0;
return (running);
}

13
source/unused/win/main.h
View File

@ -2,17 +2,8 @@
#ifndef _MAIN_H_
#define _MAIN_H_
/* options */
extern uint8 overscan;
extern uint8 use_480i;
extern uint8 FM_GENS;
extern uint8 hq_fm;
extern double psg_preamp;
extern double fm_preamp;
extern uint8 boost;
extern uint8 region_detect;
extern uint8 sys_type[2];
extern uint8 force_dtack;
#define MAX_INPUTS 8
extern uint8 debug_on;
extern uint8 log_error;

5
source/unused/win/osd.h
View File

@ -8,12 +8,13 @@
#include <time.h>
#include <conio.h>
#include "SDL.h"
#include <SDL.h>
#include <stdlib.h>
#include "error.h"
#include "shared.h"
#include "main.h"
#include "config.h"
#include "error.h"
#include "unzip.h"
#include "fileio.h"

3
source/unused/win/readme-sdl.txt Normal file
View File

@ -0,0 +1,3 @@
To be compiled with MinGW.
You will also need to install SDL library
Zlib is required for zipped rom support.

4
source/unzip.c
View File

@ -161,7 +161,7 @@ local int unzlocal_getShort (fin,pX)
uLong *pX;
{
uLong x ;
int i;
int i = 0;
int err;
err = unzlocal_getByte(fin,&i);
@ -183,7 +183,7 @@ local int unzlocal_getLong (fin,pX)
uLong *pX;
{
uLong x ;
int i;
int i = 0;
int err;
err = unzlocal_getByte(fin,&i);