The-Homebrew-Cloud/Genesis-Plus-GX
2
0
Fork 0
mirror of https://github.com/ekeeke/Genesis-Plus-GX.git synced 2025-01-15 04:39:07 +01:00
Code Issues Packages Projects Releases Wiki Activity

improved PAL region auto-detection for some games

Browse Source 
fixed auto-detected inputs not being properly initialized after ROM loads
some code cleanup
This commit is contained in:
ekeeke31 2010-03-22 14:03:58 +00:00
parent 9092121e60
commit a590414754
4 changed files with 42 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
source/cart_hw/cart_hw.c
View File

@ -233,7 +233,7 @@ void cart_hw_init()
} }
/********************************************** /**********************************************
EXTERNAL RAM BACKUP MEMORY
***********************************************/ ***********************************************/
sram_init(); sram_init();
eeprom_init(); eeprom_init();
@ -241,7 +241,7 @@ void cart_hw_init()
{ {
if (sram.custom) if (sram.custom)
{ {
/* serial EEPROM */ /* Serial EEPROM */
m68k_memory_map[eeprom.type.sda_out_adr >> 16].read8 = eeprom_read_byte; m68k_memory_map[eeprom.type.sda_out_adr >> 16].read8 = eeprom_read_byte;
m68k_memory_map[eeprom.type.sda_out_adr >> 16].read16 = eeprom_read_word; m68k_memory_map[eeprom.type.sda_out_adr >> 16].read16 = eeprom_read_word;
m68k_memory_map[eeprom.type.sda_in_adr >> 16].read8 = eeprom_read_byte; m68k_memory_map[eeprom.type.sda_in_adr >> 16].read8 = eeprom_read_byte;
@ -286,7 +286,7 @@ void cart_hw_init()
} }
/********************************************** /**********************************************
SPECIAL PERIPHERALS SPECIFIC CONTROLLER SETTINGS
***********************************************/ ***********************************************/
/* restore previous settings */ /* restore previous settings */
@ -305,8 +305,10 @@ void cart_hw_init()
if (strstr(rominfo.international,"MENACER") != NULL) if (strstr(rominfo.international,"MENACER") != NULL)
{ {
/* save current setting */ /* save current setting */
if (old_system[0] == -1) old_system[0] = input.system[0]; if (old_system[0] == -1)
if (old_system[1] == -1) old_system[1] = input.system[1]; old_system[0] = input.system[0];
if (old_system[1] == -1)
old_system[1] = input.system[1];
input.system[0] = NO_SYSTEM; input.system[0] = NO_SYSTEM;
input.system[1] = SYSTEM_MENACER; input.system[1] = SYSTEM_MENACER;
@ -316,8 +318,10 @@ void cart_hw_init()
else if (strstr(rominfo.international,"T2 ; THE ARCADE GAME") != NULL) else if (strstr(rominfo.international,"T2 ; THE ARCADE GAME") != NULL)
{ {
/* save current setting */ /* save current setting */
if (old_system[0] == -1) old_system[0] = input.system[0]; if (old_system[0] == -1)
if (old_system[1] == -1) old_system[1] = input.system[1]; old_system[0] = input.system[0];
if (old_system[1] == -1)
old_system[1] = input.system[1];
input.system[0] = SYSTEM_GAMEPAD; input.system[0] = SYSTEM_GAMEPAD;
input.system[1] = SYSTEM_MENACER; input.system[1] = SYSTEM_MENACER;
@ -327,8 +331,10 @@ void cart_hw_init()
else if (strstr(rominfo.international,"BODY COUNT") != NULL) else if (strstr(rominfo.international,"BODY COUNT") != NULL)
{ {
/* save current setting */ /* save current setting */
if (old_system[0] == -1) old_system[0] = input.system[0]; if (old_system[0] == -1)
if (old_system[1] == -1) old_system[1] = input.system[1]; old_system[0] = input.system[0];
if (old_system[1] == -1)
old_system[1] = input.system[1];
input.system[0] = SYSTEM_MOUSE; input.system[0] = SYSTEM_MOUSE;
input.system[1] = SYSTEM_MENACER; input.system[1] = SYSTEM_MENACER;
@ -342,8 +348,10 @@ void cart_hw_init()
else if (strstr(rominfo.international,"LETHAL ENFORCERSII") != NULL) else if (strstr(rominfo.international,"LETHAL ENFORCERSII") != NULL)
{ {
/* save current setting */ /* save current setting */
if (old_system[0] == -1) old_system[0] = input.system[0]; if (old_system[0] == -1)
if (old_system[1] == -1) old_system[1] = input.system[1]; old_system[0] = input.system[0];
if (old_system[1] == -1)
old_system[1] = input.system[1];
input.system[0] = SYSTEM_GAMEPAD; input.system[0] = SYSTEM_GAMEPAD;
input.system[1] = SYSTEM_JUSTIFIER; input.system[1] = SYSTEM_JUSTIFIER;
@ -353,8 +361,10 @@ void cart_hw_init()
else if (strstr(rominfo.international,"LETHAL ENFORCERS") != NULL) else if (strstr(rominfo.international,"LETHAL ENFORCERS") != NULL)
{ {
/* save current setting */ /* save current setting */
if (old_system[0] == -1) old_system[0] = input.system[0]; if (old_system[0] == -1)
if (old_system[1] == -1) old_system[1] = input.system[1]; old_system[0] = input.system[0];
if (old_system[1] == -1)
old_system[1] = input.system[1];
input.system[0] = SYSTEM_GAMEPAD; input.system[0] = SYSTEM_GAMEPAD;
input.system[1] = SYSTEM_JUSTIFIER; input.system[1] = SYSTEM_JUSTIFIER;
@ -384,8 +394,10 @@ void cart_hw_init()
m68k_memory_map[0x3f].write16 = jcart_write; m68k_memory_map[0x3f].write16 = jcart_write;
/* save current setting */ /* save current setting */
if (old_system[0] == -1) old_system[0] = input.system[0]; if (old_system[0] == -1)
if (old_system[1] == -1) old_system[1] = input.system[1]; old_system[0] = input.system[0];
if (old_system[1] == -1)
old_system[1] = input.system[1];
/* set default settings */ /* set default settings */
input.system[0] = SYSTEM_GAMEPAD; input.system[0] = SYSTEM_GAMEPAD;
@ -715,12 +727,11 @@ static void realtec_mapper_w(uint32 address, uint32 data)
uint32 base = (cart.hw.regs[0] << 1) | (cart.hw.regs[1] << 3); uint32 base = (cart.hw.regs[0] << 1) | (cart.hw.regs[1] << 3);
/* ensure mapped size is not null */ /* ensure mapped size is not null */
if (!cart.hw.regs[2]) return; if (cart.hw.regs[2])
{
/* selected blocks are mirrored into the whole cartridge area */ /* selected blocks are mirrored into the whole cartridge area */
int i; int i;
for (i=0x00; i<0x40; i++) for (i=0x00; i<0x40; i++)
{
m68k_memory_map[i].base = &cart.rom[(base + (i % cart.hw.regs[2])) << 16]; m68k_memory_map[i].base = &cart.rom[(base + (i % cart.hw.regs[2])) << 16];
} }
return; return;

5
source/cart_hw/sram.c
View File

@ -67,9 +67,10 @@ void sram_init()
} }
/* set SRAM ON by default when ROM is not mapped */ /* set SRAM ON by default when ROM is not mapped */
if (cart.romsize <= sram.start) sram.on = 1; if (cart.romsize <= sram.start)
sram.on = 1;
/* Some games with bad header or specific configuration */ /* autodetect some games with bad header or specific configuration */
if (strstr(rominfo.product,"T-113016") != NULL) if (strstr(rominfo.product,"T-113016") != NULL)
{ {
/* Pugsy (try accessing unmapped area for copy protection) */ /* Pugsy (try accessing unmapped area for copy protection) */

6
source/loadrom.c
View File

@ -369,8 +369,10 @@ void set_region ()
else region_code = REGION_USA; else region_code = REGION_USA;
/* some games need specific REGION setting */ /* some games need specific REGION setting */
if (((strstr(rominfo.product,"T-45033") != NULL) && (rominfo.checksum == 0x0F81)) || /* Alisia Dragon (E) */ if (((strstr(rominfo.product,"T-45033") != NULL) && (rominfo.checksum == 0x0F81)) || /* Alisia Dragon (PAL) */
(strstr(rominfo.product,"T-69046-50") != NULL)) /* On Dal Jang Goon (Korea) */ (strstr(rominfo.product,"T-69046-50") != NULL) || /* Back to the Future III (PAL) */
(strstr(rominfo.product,"T-120106-00") != NULL) || /* Brian Lara Cricket (PAL) */
(strstr(rominfo.product,"T-70096 -00") != NULL)) /* Muhammad Ali Heavyweight Boxing (PAL) */
{ {
/* need PAL settings */ /* need PAL settings */
region_code = REGION_EUROPE; region_code = REGION_EUROPE;

6
source/system.c
View File

@ -270,15 +270,15 @@ void audio_shutdown(void)
****************************************************************/ ****************************************************************/
void system_init (void) void system_init (void)
{ {
/* Cartridge hardware */
cart_hw_init();
/* Genesis hardware */ /* Genesis hardware */
gen_init(); gen_init();
io_init(); io_init();
vdp_init(); vdp_init();
render_init(); render_init();
/* Cartridge hardware */
cart_hw_init();
/* Sound Chips hardware */ /* Sound Chips hardware */
sound_init(); sound_init();
} }