void m1snd_addz80(long clock, void *handlers)
{
char *z80cctx;
int cpunum;
z80cctx = malloc(4*1024);
cpunum = timer_add_cpu(CPU_Z80C, clock, z80_execute, z80_getcycles, z80_yield, z80_getctx, z80_setctx, z80cctx);
memory_register_cpu(cpunum, 8, M1_CPU_LE);
// printf("adding Z80 #%d\n", cpunum);
z80_init();
z80_reset(NULL);
z80_set_irq_callback(z80_irq_callback);
z80_vector = 0xff;
z80_getctx(z80cctx);
}
int32 qsf_command(void *handle, int32 command, int32 parameter)
{
qsf_synth_t *s = handle;
switch (command)
{
case COMMAND_RESTART:
memcpy (s->RAM, s->initRAM, 0x1000);
memcpy (s->RAM2, s->initRAM2, 0x1000);
if (s->z80) {
z80_reset(s->z80, NULL);
z80_set_irq_callback(s->z80, qsf_irq_cb);
}
qsound_sh_stop (s->qs);
s->qs = qsound_sh_start(&qsintf);
s->samples_to_next_tick = samples_per_tick;
return AO_SUCCESS;
}
return AO_FAIL;
}
/* Reset Z80 emulator */
void cpu_reset(void)
{
z80_reset(0);
z80_set_irq_callback(sms_irq_callback);
}
// RESET EMULATED MACHINE -----------------------------------------------------
void Machine_Reset (void)
{
int i;
static byte VDPInit [16] =
{
/* Values set by BIOS */
0x36, /*0xA0*/ 0x80 /* zero for Coleco */, 0xFF, 0xFF, 0xFF, 0xFF, 0xFB, 0x00,
0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00
/* Old (guessed ?) values */
// 0x06, 0x00, 0x0E, 0xFF, 0xFF, 0x7F, 0x00, 0x00,
// 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00
};
#ifdef DEBUG_WHOLE
Msg (MSGT_DEBUG, "Machine_Reset();");
#endif
// Unpause machine if necessary
if (machine & MACHINE_PAUSED)
Machine_Pause ();
// Set driver & machine stuff
drv_set (cur_machine.driver_id);
Machine_Set_Mapper ();
if ((machine & MACHINE_RUN) != 0 /*== MACHINE_RUN */ && (cur_drv->id != DRV_NES))
Machine_Set_Mapping (); // ^^ FIXME: the test above isn't beautiful since MACHINE_RUN contains multiple flags, but I'm unsure which of them is actually needed to perform the correct test
Machine_Set_Handler_IO ();
Machine_Set_Handler_Read ();
Machine_Set_Handler_Write ();
Machine_Set_Handler_Loop ();
Machine_Set_Country ();
Machine_Set_IPeriod ();
Machine_Set_TV_Lines ();
// VDP MODEL --------------------------------------------------------------
if (DB_CurrentEntry && DB_CurrentEntry->emu_vdp_model != -1)
cur_machine.VDP.model = DB_CurrentEntry->emu_vdp_model;
else
{
if (cur_drv->id == DRV_GG)
cur_machine.VDP.model = VDP_MODEL_315_5378;
else
cur_machine.VDP.model = VDP_MODEL_315_5226;
}
// 3-D GLASSES ------------------------------------------------------------
sms.Glasses_Register = ((Glasses.Mode == GLASSES_MODE_SHOW_ONLY_LEFT) ? 1 : 0);
// CPU (MARAT FAIZULLIN'S CORE) -------------------------------------------
CPU_Loop_Stop = TRUE;
CPU_ForceNMI = FALSE;
#ifdef MARAT_Z80
sms.R.IPeriod = opt.Cur_IPeriod;
sms.R.Trace = FALSE;
ResetZ80 (&sms.R);
sms.R.IFF |= IFF_IM1;
sms.R.IAutoReset = FALSE;
sms.R.TrapBadOps = FALSE;
// CPU (MAME'S CORE) ------------------------------------------------------
#elif MAME_Z80
z80_reset (NULL);
z80_set_irq_callback (Get_IRQ_Vector);
z80_set_irq_line (0, ASSERT_LINE);
z80_set_irq_line (0, CLEAR_LINE);
// CPU (RICHARD MITTON'S CORE) --------------------------------------------
#elif RAZE_Z80
z80_init_memmap ();
z80_add_write (0x0000, 0xFFFF, Z80_MAP_HANDLED, WrZ80);
for (i = 0; i < 4; i ++)
{
z80_add_read ((i * 0x2000), (i * 0x2000) + 0x1FFF, Z80_MAP_DIRECT, Mem_Pages [i]);
z80_map_fetch ((i * 0x2000), (i * 0x2000) + 0x1FFF, Mem_Pages [i]);
}
for (i = 4; i < 8; i ++)
{
z80_map_fetch ((i * 0x2000), (i * 0x2000) + 0x1FFF, Mem_Pages [i]);
z80_map_read ((i * 0x2000), (i * 0x2000) + 0x1FFF, Mem_Pages [i]);
}
z80_set_in (InZ80);
z80_set_out (OutZ80);
z80_end_memmap ();
z80_reset ();
#endif
// MEMORY -----------------------------------------------------------------
memset (RAM, 0, 0x10000); // Clear all RAM
memset (VRAM, 0, 0x04000); // Clear all VRAM
PRAM = PRAM_Static;
memset (PRAM, 0, 0x00040); // Clear all PRAM (palette)
// Unload BIOS if...
if ((cur_drv->id != DRV_SMS || sms.Country != COUNTRY_EXPORT) && (machine & MACHINE_ROM_LOADED))
{
#ifdef DEBUG_WHOLE
Msg (MSGT_DEBUG, "Machine_Reset(): BIOS_Unload()");
#endif
BIOS_Unload ();
}
// GRAPHICS ---------------------------------------------------------------
for (i = 0; i < 16; i++)
Tms_VDP_Out (i, ((i == 1 && cur_drv->id == DRV_COLECO) ? 0x00 : VDPInit [i]));
for (i = 0; i < MAX_TILES; i++)
tgfx.Tile_Dirty [i] = TILE_DIRTY_DECODE | TILE_DIRTY_REDRAW;
VDP_UpdateLineLimits();
clear_bitmap (screenbuffer_1);
clear_bitmap (screenbuffer_2);
screenbuffer = screenbuffer_1;
screenbuffer_next = screenbuffer_2;
cur_machine.VDP.sprite_shift_x = 0;
cur_machine.VDP.scroll_x_latched = 0;
cur_machine.VDP.scroll_y_latched = 0;
memset(cur_machine.VDP.scroll_x_latched_table, 0, sizeof(cur_machine.VDP.scroll_x_latched_table));
tsms.VDP_Video_Change = VDP_VIDEO_CHANGE_ALL;
// GRAPHICS: SPRITE FLICKERING --------------------------------------------
if (g_Configuration.sprite_flickering & SPRITE_FLICKERING_AUTO)
{
if (DB_CurrentEntry && (DB_CurrentEntry->flags & DB_FLAG_EMU_SPRITE_FLICKER))
g_Configuration.sprite_flickering |= SPRITE_FLICKERING_ENABLED;
else
g_Configuration.sprite_flickering &= ~SPRITE_FLICKERING_ENABLED;
}
// PALETTE ----------------------------------------------------------------
//if (machine & MACHINE_POWER_ON)
Palette_Emulation_Reset();
// INPUT/OUTPUT/VDP -------------------------------------------------------
sms.VDP_Status = 0x00;
sms.VDP_Address = 0x0000;
sms.VDP_Access_Mode = VDP_Access_Mode_1;
sms.VDP_Access_First = 0x00;
sms.VDP_Pal = 0x00;
sms.VDP_ReadLatch = 0x00;
sms.Lines_Left = 255;
sms.Pending_HBlank = FALSE;
sms.Pending_NMI = FALSE;
tsms.VDP_Line = 0;
// CONTROLLERS ------------------------------------------------------------
for (i = 0; i < 8; i ++)
tsms.Control [i] = 0xFFFF; /* 0x3FFF */
tsms.Control_GG = /*0x20 | 0x80*/ 0;
tsms.Control_Start_Pause = 0;
tsms.Periph_Nat = 0;
sms.Input_Mode = 0x07;
// SOUND ------------------------------------------------------------------
sms.FM_Register = 0;
sms.FM_Magic = 0;
// if (fm_use == TRUE) fm_init (FM_ALL_INIT);
// resume_fm ();
FM_Reset ();
SN76489_Reset (cur_machine.TV->CPU_clock, audio_sample_rate);
if (Sound.LogVGM.Logging == VGM_LOGGING_ACCURACY_SAMPLE)
VGM_Update_Timing (&Sound.LogVGM);
// Reset sound cycle counter
Sound_Update_Count = 0;
Sound_CycleCounter = 0;
// FIXME: add a reset handler per driver, instead of the code below...
// GAME GEAR COMMUNICATION PORT
if (cur_machine.driver_id == DRV_GG)
{
Comm_Reset ();
}
// SF-7000
if (cur_machine.driver_id == DRV_SF7000)
{
SF7000_Reset ();
}
// NINTENDO CRAP
if (cur_machine.driver_id == DRV_NES /* && cfg.NES_Enabled */)
{
ROM = Game_ROM;
NES_Reset ();
}
// DEBUGGER ---------------------------------------------------------------
#ifdef MEKA_Z80_DEBUGGER
Debugger_MachineReset ();
#endif
}
void system_load_state(void *fd)
{
int i;
uint8 reg[0x40];
/* Initialize everything */
cpu_reset();
system_reset();
/* Load VDP context */
fread(&vdp, sizeof(t_vdp), 1, fd);
/* Load SMS context */
fread(&sms, sizeof(t_sms), 1, fd);
/* Load Z80 context */
fread(Z80_Context, sizeof(Z80_Regs), 1, fd);
fread(&after_EI, sizeof(int), 1, fd);
/* Load YM2413 registers */
fread(reg, 0x40, 1, fd);
/* Load SN76489 context */
fread(&sn[0], sizeof(t_SN76496), 1, fd);
/* Restore callbacks */
z80_set_irq_callback(sms_irq_callback);
cpu_readmap[0] = cart.rom + 0x0000; /* 0000-3FFF */
cpu_readmap[1] = cart.rom + 0x2000;
cpu_readmap[2] = cart.rom + 0x4000; /* 4000-7FFF */
cpu_readmap[3] = cart.rom + 0x6000;
cpu_readmap[4] = cart.rom + 0x0000; /* 0000-3FFF */
cpu_readmap[5] = cart.rom + 0x2000;
cpu_readmap[6] = sms.ram;
cpu_readmap[7] = sms.ram;
cpu_writemap[0] = sms.dummy;
cpu_writemap[1] = sms.dummy;
cpu_writemap[2] = sms.dummy;
cpu_writemap[3] = sms.dummy;
cpu_writemap[4] = sms.dummy;
cpu_writemap[5] = sms.dummy;
cpu_writemap[6] = sms.ram;
cpu_writemap[7] = sms.ram;
sms_mapper_w(3, sms.fcr[3]);
sms_mapper_w(2, sms.fcr[2]);
sms_mapper_w(1, sms.fcr[1]);
sms_mapper_w(0, sms.fcr[0]);
/* Force full pattern cache update */
is_vram_dirty = 1;
memset(vram_dirty, 1, 0x200);
/* Restore palette */
for(i = 0; i < PALETTE_SIZE; i += 1)
palette_sync(i);
/* Restore sound state */
if(snd.enabled)
{
/* Clear YM2413 context */
OPLL_reset(opll) ;
OPLL_reset_patch(opll,0) ; /* if use default voice data. */
/* Restore rhythm enable first */
ym2413_write(0, 0, 0x0E);
ym2413_write(0, 1, reg[0x0E]);
/* User instrument settings */
for(i = 0x00; i <= 0x07; i += 1)
{
ym2413_write(0, 0, i);
ym2413_write(0, 1, reg[i]);
}
/* Channel frequency */
for(i = 0x10; i <= 0x18; i += 1)
{
ym2413_write(0, 0, i);
ym2413_write(0, 1, reg[i]);
}
/* Channel frequency + ctrl. */
for(i = 0x20; i <= 0x28; i += 1)
{
ym2413_write(0, 0, i);
ym2413_write(0, 1, reg[i]);
}
/* Instrument and volume settings */
for(i = 0x30; i <= 0x38; i += 1)
{
ym2413_write(0, 0, i);
ym2413_write(0, 1, reg[i]);
}
}
}
void *qsf_start(const char *path, uint8 *buffer, uint32 length)
{
qsf_synth_t *s = malloc (sizeof (qsf_synth_t));
memset (s, 0, sizeof (qsf_synth_t));
uint8 *file = NULL, *lib_decoded = NULL, *lib_raw_file = NULL;
uint64 file_len, lib_len, lib_raw_length;
corlett_t *lib;
s->z80 = z80_init();
s->z80->userdata = s;
s->Z80ROM = malloc(512*1024);
s->QSamples = malloc(8*1024*1024);
s->skey1 = s->skey2 = 0;
s->akey = 0;
s->xkey = 0;
s->cur_bank = 0;
// Decode the current QSF
if (corlett_decode(buffer, length, &file, &file_len, &s->c) != AO_SUCCESS)
{
return AO_FAIL;
}
// Get the library file
if (s->c->lib[0] != 0)
{
uint64 tmp_length;
char libpath[PATH_MAX];
ao_getlibpath (path, s->c->lib, libpath, sizeof (libpath));
#if DEBUG_LOADER
printf("Loading library: %s\n", libpath);
#endif
if (ao_get_lib(libpath, &lib_raw_file, &tmp_length) != AO_SUCCESS)
{
free (file);
qsf_stop (s);
return NULL;
}
lib_raw_length = tmp_length;
if (corlett_decode(lib_raw_file, lib_raw_length, &lib_decoded, &lib_len, &lib) != AO_SUCCESS)
{
free(lib_raw_file);
free (file);
qsf_stop (s);
return NULL;
}
// Free up raw file
free(lib_raw_file);
// use the contents
qsf_walktags(s, lib_decoded, lib_decoded+lib_len);
// Dispose the corlett structure for the lib - we don't use it
free(lib);
if (lib_decoded) {
free (lib_decoded);
lib_decoded = NULL;
}
}
// now patch the file into RAM OVER the libraries
qsf_walktags(s, file, file+file_len);
free(file);
if ((s->skey1 != 0) && (s->skey2 != 0))
{
#if DEBUG_LOADER
printf("Decoding Kabuki: skey1 %08x skey2 %08x akey %04x xkey %02x\n", skey1, skey2, akey, xkey);
#endif
s->uses_kabuki = 1;
cps1_decode((unsigned char *)s->Z80ROM, s->skey1, s->skey2, s->akey, s->xkey);
}
// set qsfby tag
strcpy(s->qsfby, "n/a");
if (s->c)
{
int i;
for (i = 0; i < MAX_UNKNOWN_TAGS; i++)
{
if (!strcasecmp(s->c->tag_name[i], "qsfby"))
{
strcpy(s->qsfby, s->c->tag_data[i]);
}
}
}
memcpy (s->initRAM, s->RAM, 0x1000);
memcpy (s->initRAM2, s->RAM2, 0x1000);
if (s->z80) {
z80_reset(s->z80, NULL);
z80_set_irq_callback(s->z80, qsf_irq_cb);
}
qsintf.sample_rom = s->QSamples;
s->qs = qsound_sh_start(&qsintf);
s->samples_to_next_tick = samples_per_tick;
return s;
}
int load_state_from_mem(void *stor)
{
int i;
/* Initialize everything */
z80_reset(0);
z80_set_irq_callback(sms_irq_callback);
system_reset();
if(snd.enabled)
sound_reset();
//davex: header is not saved in memory state
// Load VDP context
memcpy(&vdp, stor, sizeof(vdp_t)); //VDP context
stor += sizeof(vdp_t);
//Load SMS context (1/3)
memcpy(&sms, stor, sizeof(sms_t) );
stor += sizeof(sms_t);
//Load SMS context (2/3)
memcpy(&cart.fcr[0],stor, 1 );
stor += 1;
memcpy(&cart.fcr[1],stor, 1 );
stor += 1;
memcpy(&cart.fcr[2],stor, 1 );
stor += 1;
memcpy(&cart.fcr[3],stor, 1 );
stor += 1;
//Load SMS context (3/3)
memcpy(&cart.sram, stor, 0x8000);
stor += 0x8000;
// Load Z80 context
memcpy(Z80_Context, stor, sizeof(Z80_Regs) );
stor += sizeof(Z80_Regs);
memcpy(&after_EI, stor, sizeof(int) );
stor += sizeof(int);
// Load YM2413 context
FM_SetContext(stor);
stor += FM_GetContextSize();
// Load SN76489 context
SN76489_SetContext(0, stor);
/* Restore callbacks */
z80_set_irq_callback(sms_irq_callback);
for(i = 0x00; i <= 0x2F; i++)
{
cpu_readmap[i] = &cart.rom[(i & 0x1F) << 10];
cpu_writemap[i] = dummy_write;
}
for(i = 0x30; i <= 0x3F; i++)
{
cpu_readmap[i] = &sms.wram[(i & 0x07) << 10];
cpu_writemap[i] = &sms.wram[(i & 0x07) << 10];
}
sms_mapper_w(3, cart.fcr[3]);
sms_mapper_w(2, cart.fcr[2]);
sms_mapper_w(1, cart.fcr[1]);
sms_mapper_w(0, cart.fcr[0]);
/* Force full pattern cache update */
bg_list_index = 0x200;
for(i = 0; i < 0x200; i++)
{
bg_name_list[i] = i;
bg_name_dirty[i] = -1;
}
/* Restore palette */
for(i = 0; i < PALETTE_SIZE; i++)
palette_sync(i, 1);
viewport_check();
return 1;
}
void system_load_state(void *fd)
{
int i;
uint8 *buf;
char id[4];
uint16 version;
/* Initialize everything */
z80_reset(0);
z80_set_irq_callback(sms_irq_callback);
system_reset();
if(snd.enabled)
sound_reset();
/* Read header */
fread(id, 4, 1, fd);
fread(&version, 2, 1, fd);
/* Load VDP context */
fread(&vdp, sizeof(vdp_t), 1, fd);
/* Load SMS context */
fread(&sms, sizeof(sms_t), 1, fd);
cart.fcr[0] = fgetc(fd);
cart.fcr[1] = fgetc(fd);
cart.fcr[2] = fgetc(fd);
cart.fcr[3] = fgetc(fd);
fread(cart.sram, 0x8000, 1, fd);
/* Load Z80 context */
fread(Z80_Context, sizeof(Z80_Regs), 1, fd);
fread(&after_EI, sizeof(int), 1, fd);
/* Load YM2413 context */
buf = malloc(FM_GetContextSize());
fread(buf, FM_GetContextSize(), 1, fd);
FM_SetContext(buf);
free(buf);
/* Load SN76489 context */
buf = malloc(SN76489_GetContextSize());
fread(buf, SN76489_GetContextSize(), 1, fd);
SN76489_SetContext(0, buf);
free(buf);
/* Restore callbacks */
z80_set_irq_callback(sms_irq_callback);
for(i = 0x00; i <= 0x2F; i++)
{
cpu_readmap[i] = &cart.rom[(i & 0x1F) << 10];
cpu_writemap[i] = dummy_write;
}
for(i = 0x30; i <= 0x3F; i++)
{
cpu_readmap[i] = &sms.wram[(i & 0x07) << 10];
cpu_writemap[i] = &sms.wram[(i & 0x07) << 10];
}
sms_mapper_w(3, cart.fcr[3]);
sms_mapper_w(2, cart.fcr[2]);
sms_mapper_w(1, cart.fcr[1]);
sms_mapper_w(0, cart.fcr[0]);
/* Force full pattern cache update */
bg_list_index = 0x200;
for(i = 0; i < 0x200; i++)
{
bg_name_list[i] = i;
bg_name_dirty[i] = -1;
}
/* Restore palette */
for(i = 0; i < PALETTE_SIZE; i++)
palette_sync(i, 1);
viewport_check();
}
int32 qsf_start(uint8 *buffer, uint32 length)
{
uint8 *file, *lib_decoded, *lib_raw_file;
uint64 file_len, lib_len, lib_raw_length;
corlett_t *lib;
z80_init();
Z80ROM = malloc(512*1024);
QSamples = malloc(8*1024*1024);
skey1 = skey2 = 0;
akey = 0;
xkey = 0;
cur_bank = 0;
memset(RAM, 0, 0x1000);
memset(RAM2, 0, 0x1000);
// Decode the current QSF
if (corlett_decode(buffer, length, &file, &file_len, &c) != AO_SUCCESS)
{
return AO_FAIL;
}
// Get the library file
if (c->lib[0] != 0)
{
uint64 tmp_length;
#if DEBUG_LOADER
printf("Loading library: %s\n", c->lib);
#endif
if (ao_get_lib(c->lib, &lib_raw_file, &tmp_length) != AO_SUCCESS)
{
return AO_FAIL;
}
lib_raw_length = tmp_length;
if (corlett_decode(lib_raw_file, lib_raw_length, &lib_decoded, &lib_len, &lib) != AO_SUCCESS)
{
free(lib_raw_file);
return AO_FAIL;
}
// Free up raw file
free(lib_raw_file);
// use the contents
qsf_walktags(lib_decoded, lib_decoded+lib_len);
// Dispose the corlett structure for the lib - we don't use it
free(lib);
}
// now patch the file into RAM OVER the libraries
qsf_walktags(file, file+file_len);
free(file);
if ((skey1 != 0) && (skey2 != 0))
{
#if DEBUG_LOADER
printf("Decoding Kabuki: skey1 %08x skey2 %08x akey %04x xkey %02x\n", skey1, skey2, akey, xkey);
#endif
uses_kabuki = 1;
cps1_decode((unsigned char *)Z80ROM, skey1, skey2, akey, xkey);
}
// set qsfby tag
strcpy(qsfby, "n/a");
if (c)
{
int i;
for (i = 0; i < MAX_UNKNOWN_TAGS; i++)
{
if (!strcasecmp(c->tag_name[i], "qsfby"))
{
strcpy(qsfby, c->tag_data[i]);
}
}
}
z80_reset(NULL);
z80_set_irq_callback(qsf_irq_cb);
qsintf.sample_rom = QSamples;
qsound_sh_start(&qsintf);
return AO_SUCCESS;
}
// RESET EMULATED MACHINE -----------------------------------------------------
void Machine_Reset(void)
{
int i;
static byte VDPInit [16] =
{
/* Values set by BIOS */
0x36, /*0xA0*/ 0x80 /* zero for Coleco */, 0xFF, 0xFF, 0xFF, 0xFF, 0xFB, 0x00,
0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00
/* Old (guessed ?) values */
// 0x06, 0x00, 0x0E, 0xFF, 0xFF, 0x7F, 0x00, 0x00,
// 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00
};
#ifdef DEBUG_WHOLE
Msg(MSGT_DEBUG, "Machine_Reset();");
#endif
// Unpause machine if necessary
if (g_machine_flags & MACHINE_PAUSED)
Machine_Pause();
// Set driver & machine stuff
drv_set (g_machine.driver_id);
Machine_Set_Mapper ();
if ((g_machine_flags & MACHINE_RUN) != 0 /*== MACHINE_RUN */)
Machine_Set_Mapping (); // ^^ FIXME: the test above isn't beautiful since MACHINE_RUN contains multiple flags, but I'm unsure which of them is actually needed to perform the correct test
Machine_Set_Handler_IO ();
Machine_Set_Handler_Read ();
Machine_Set_Handler_Write ();
Machine_Set_Handler_Loop ();
Machine_Set_Country ();
Machine_Set_IPeriod ();
Machine_Set_TV_Lines ();
// VDP MODEL --------------------------------------------------------------
if (DB.current_entry && DB.current_entry->emu_vdp_model != -1)
{
g_machine.VDP.model = DB.current_entry->emu_vdp_model;
}
else
{
if (g_driver->id == DRV_GG)
g_machine.VDP.model = VDP_MODEL_315_5378;
else
g_machine.VDP.model = VDP_MODEL_315_5226;
}
// 3-D GLASSES ------------------------------------------------------------
sms.Glasses_Register = ((Glasses.Mode == GLASSES_MODE_SHOW_ONLY_LEFT) ? 1 : 0);
if (Glasses.Mode == GLASSES_MODE_SHOW_ONLY_LEFT) {
sms.Glasses_Register = 1;
}
// CPU (MARAT FAIZULLIN'S CORE) -------------------------------------------
CPU_Loop_Stop = TRUE;
CPU_ForceNMI = FALSE;
#ifdef MARAT_Z80
sms.R.IPeriod = opt.Cur_IPeriod;
sms.R.Trace = FALSE;
ResetZ80 (&sms.R);
sms.R.IFF |= IFF_IM1;
sms.R.IAutoReset = FALSE;
sms.R.TrapBadOps = FALSE;
// CPU (MAME'S CORE) ------------------------------------------------------
#elif MAME_Z80
z80_reset (NULL);
z80_set_irq_callback (Get_IRQ_Vector);
z80_set_irq_line (0, ASSERT_LINE);
z80_set_irq_line (0, CLEAR_LINE);
// CPU (RICHARD MITTON'S CORE) --------------------------------------------
#elif RAZE_Z80
z80_init_memmap();
z80_add_write (0x0000, 0xFFFF, Z80_MAP_HANDLED, WrZ80);
for (i = 0; i < 4; i ++)
{
z80_add_read ((i * 0x2000), (i * 0x2000) + 0x1FFF, Z80_MAP_DIRECT, Mem_Pages [i]);
z80_map_fetch ((i * 0x2000), (i * 0x2000) + 0x1FFF, Mem_Pages [i]);
}
for (i = 4; i < 8; i ++)
{
z80_map_fetch ((i * 0x2000), (i * 0x2000) + 0x1FFF, Mem_Pages [i]);
z80_map_read ((i * 0x2000), (i * 0x2000) + 0x1FFF, Mem_Pages [i]);
}
z80_set_in (InZ80);
z80_set_out (OutZ80);
z80_end_memmap();
z80_reset();
#endif
// MEMORY -----------------------------------------------------------------
// Clear RAM
if (g_driver->id == DRV_SMS && sms.Country == COUNTRY_JAPAN)
{
// On Japanese SMS clear RAM with 0xF0 patterns
// I am not sure how reliable is that pattern but this is what I'm seeing on my JSMS
// In theory this should be applied to all drivers, all countries, etc. but the exact
// behavior of other systems and bioses should be inspected more in details before
// generalizing that.
// The game "Ali Baba" require a non-00 and non-FF memory pattern to run to a bug
// in the code which makes it execute uninitialized memory from 0xFF07 onward.
// An F0 pattern correspond to RET P which happens to fix the game.
memset (RAM, 0xF0, 0x10000);
}
else
{
memset (RAM, 0x00, 0x10000);
}
memset (VRAM, 0, 0x04000); // Clear all VRAM
memset (PRAM, 0, 0x00040); // Clear all PRAM (palette)
#ifdef DEBUG_UNINITIALIZED_RAM_ACCESSES
memset (RAM_IsUninitialized, 1, 0x2000);
#endif
// Unload BIOS if...
if ((g_driver->id != DRV_SMS || sms.Country != COUNTRY_EXPORT) && (g_machine_flags & MACHINE_ROM_LOADED))
{
#ifdef DEBUG_WHOLE
Msg(MSGT_DEBUG, "Machine_Reset(): BIOS_Unload()");
#endif
BIOS_Unload();
}
// GRAPHICS ---------------------------------------------------------------
for (i = 0; i < 16; i++)
Tms_VDP_Out (i, ((i == 1 && g_driver->id == DRV_COLECO) ? 0x00 : VDPInit [i]));
for (i = 0; i < MAX_TILES; i++)
tgfx.Tile_Dirty [i] = TILE_DIRTY_DECODE | TILE_DIRTY_REDRAW;
VDP_UpdateLineLimits();
//assert(!Screenbuffer_IsLocked());
al_set_target_bitmap(screenbuffer_1);
al_clear_to_color(COLOR_BLACK);
al_set_target_bitmap(screenbuffer_2);
al_clear_to_color(COLOR_BLACK);
//screenbuffer = screenbuffer_1;
//screenbuffer_next = screenbuffer_2;
g_machine.VDP.sprite_shift_x = 0;
g_machine.VDP.scroll_x_latched = 0;
g_machine.VDP.scroll_y_latched = 0;
memset(g_machine.VDP.scroll_x_latched_table, 0, sizeof(g_machine.VDP.scroll_x_latched_table));
tsms.VDP_Video_Change = VDP_VIDEO_CHANGE_ALL;
// GRAPHICS: SPRITE FLICKERING --------------------------------------------
if (g_configuration.sprite_flickering & SPRITE_FLICKERING_AUTO)
{
if (DB.current_entry && (DB.current_entry->flags & DB_FLAG_EMU_SPRITE_FLICKER))
g_configuration.sprite_flickering |= SPRITE_FLICKERING_ENABLED;
else
g_configuration.sprite_flickering &= ~SPRITE_FLICKERING_ENABLED;
}
// PALETTE ----------------------------------------------------------------
//if (machine & MACHINE_POWER_ON)
Palette_Emulation_Reset();
// INPUT/OUTPUT/VDP -------------------------------------------------------
sms.VDP_Status = 0x00;
sms.VDP_Address = 0x0000;
sms.VDP_Access_Mode = VDP_Access_Mode_1;
sms.VDP_Access_First = 0x00;
sms.VDP_Pal = 0x00;
sms.VDP_ReadLatch = 0x00;
sms.Lines_Left = 255;
sms.Pending_HBlank = FALSE;
sms.Pending_NMI = FALSE;
tsms.VDP_Line = 0;
// CONTROLLERS ------------------------------------------------------------
for (i = 0; i < 8; i ++)
tsms.Control [i] = 0xFFFF; /* 0x3FFF */
tsms.Control_GG = /*0x20 | 0x80*/ 0;
tsms.Control_Start_Pause = 0;
tsms.Port3F = 0;
sms.Input_Mode = 0x07;
// SOUND ------------------------------------------------------------------
sms.FM_Register = 0;
sms.FM_Magic = 0;
// if (fm_use == TRUE) fm_init (FM_ALL_INIT);
// resume_fm();
FM_Reset();
SN76489_Reset (g_machine.TV->CPU_clock, Sound.SampleRate);
if (Sound.LogVGM.Logging == VGM_LOGGING_ACCURACY_SAMPLE)
VGM_Update_Timing (&Sound.LogVGM);
Sound_ResetCycleCounter();
// FIXME: add a reset handler per driver, instead of the code below...
// GAME GEAR COMMUNICATION PORT
if (g_machine.driver_id == DRV_GG)
Comm_Reset();
// SF-7000
if (g_machine.driver_id == DRV_SF7000)
SF7000_Reset();
// DEBUGGER ---------------------------------------------------------------
#ifdef MEKA_Z80_DEBUGGER
Debugger_MachineReset();
#endif
}
