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sms, handle some more special cases

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This commit is contained in:
kub 2023-07-20 21:02:54 +00:00
parent f3c2f81e89
commit c9076db928
2 changed files with 35 additions and 9 deletions
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1
pico/pico_int.h
View file

@ -345,6 +345,7 @@ struct PicoMisc
#define PMS_HW_LCD 0x2 // GG LCD
#define PMS_HW_JAP 0x4 // japanese system
#define PMS_HW_FM 0x8 // FM sound
#define PMS_MAP_AUTO 0
#define PMS_MAP_SEGA 1

43
pico/sms.c
View file

@ -139,7 +139,7 @@ static unsigned char z80_sms_in(unsigned short a)
a &= 0xff;
elprintf(EL_IO, "z80 port %04x read", a);
if(a >= 0xf0){
if (PicoIn.opt & POPT_EN_YM2413){
if (Pico.m.hardware & PMS_HW_FM) {
switch(a)
{
case 0xf0:
@ -216,7 +216,7 @@ static void z80_sms_out(unsigned short a, unsigned char d)
a &= 0xff;
if (a >= 0xf0){
if (PicoIn.opt & POPT_EN_YM2413){
if (Pico.m.hardware & PMS_HW_FM) {
switch(a)
{
case 0xf0:
@ -579,8 +579,12 @@ static void xwrite(unsigned int a, unsigned char d)
}
}
// Try to detect some tricky cases by their TMR header
// NB Codemasters, some Betas, most unlicensed games have no or invalid TMRs.
// if the cksum header is valid mark this by 0x.fff.... and use that instead
// TMR product codes and hardware type for known 50Hz-only games
static u32 region_pal[] = { // cf. GX+, core/cart_hw/sms_cartc.c
static u32 region_pal[] = { // cf Meka, meka/meka.nam
0x40207067 /* Addams Family */, 0x40207020 /* Back.Future 3 */,
0x40207058 /* Battlemaniacs */, 0x40007105 /* Cal.Games 2 */,
0x40207065 /* Dracula */ , 0x40007109 /* Home Alone */,
@ -588,21 +592,32 @@ static u32 region_pal[] = { // cf. GX+, core/cart_hw/sms_cartc.c
0x40002519 /* Quest.Yak */ , 0x40207064 /* Robocop 3 */,
0x40205014 /* Sens.Soccer */ , 0x40002573 /* Sonic Blast */,
0x40007080 /* S.Harrier EU */ , 0x40007038 /* Taito Chase */,
0x40009015 /* Sonic 2 EU */ , /* NBA Jam: no valid id/cksum in TMR */
0x4fff8872 /* Excell.Dizzy */ , 0x4ffffac4 /* Fantast.Dizzy */,
0x4fff4a89 /* Csm.Spacehead */, 0x4fffe352 /* Micr.Machines */,
};
// TMR product codes and hardware type for known GG in SMS mode
static u32 gg_smsmode[] = { // cf https://smspower.org/Tags/SMS-GG
0x60002401 /* Castl.Ilusion */, 0x60101018 /* Chase HQ */,
// TMR product codes and hardware type for known non-FM games
static u32 no_fmsound[] = { // cf Meka, meka/meka.pat
0x40002070 /* Walter Payton */, 0x40007020 /* American Pro */,
0x4fffe890 /* Wanted */
};
// TMR product codes and hardware type for known GG carts running in SMS mode
// NB GG carts having the system type set to 4 (eg. HTH games) run as SMS anyway
static u32 gg_smsmode[] = { // cf https://www.smspower.org/Tags/SMS-GG
0x60002401 /* Castl.Ilusion */, 0x60101018 /* Taito Chase */,
0x70709018 /* Olympic Gold */ , 0x70009038 /* Outrun EU */,
0x60801068 /* Predator 2 */ , 0x70408098 /* Prince.Persia */,
0x50101037 /* Rastan Saga */ , 0x70006018 /* RC Grandprix */,
0x60002415 /* Super Kickoff */, 0x60801108 /* WWF.Steelcage */,
/* Excell.Dizzy, Fantast.Dizzy, Super Tetris: no valid id/cksum in TMR */
};
void PicoResetMS(void)
{
unsigned tmr;
int id, hw, i;
u32 id, hw, ck, i;
// set preselected hw/mapper from config
if (PicoIn.hwSelect) {
@ -619,6 +634,9 @@ void PicoResetMS(void)
Pico.m.hardware |= PMS_HW_JAP; // default region Japan if no TMR header
if (PicoIn.regionOverride > 2)
Pico.m.hardware &= ~PMS_HW_JAP;
Pico.m.hardware |= PMS_HW_FM;
if (!(PicoIn.opt & POPT_EN_YM2413))
Pico.m.hardware &= ~PMS_HW_FM;
// check if the ROM header contains more system information
for (tmr = 0x2000; tmr < 0xbfff && tmr <= Pico.romsize; tmr *= 2) {
@ -635,16 +653,23 @@ void PicoResetMS(void)
Pico.m.hardware |= PMS_HW_JAP; // region Japan
}
id = CPU_LE4(*(u32 *)&Pico.rom[tmr-4]) & 0xf0f0ffff;
ck = (CPU_LE4(*(u32 *)&Pico.rom[tmr-8])>>16) | (id&0xf0000000) | 0xfff0000;
for (i = 0; i < sizeof(region_pal)/sizeof(*region_pal); i++)
if (id == region_pal[i] && !PicoIn.regionOverride) {
if ((id == region_pal[i] || ck == region_pal[i]) && !PicoIn.regionOverride)
{
Pico.m.pal = 1; // requires 50Hz timing
break;
}
for (i = 0; i < sizeof(gg_smsmode)/sizeof(*gg_smsmode); i++)
if (id == gg_smsmode[i] && !PicoIn.hwSelect) {
if ((id == gg_smsmode[i] || ck == gg_smsmode[i]) && !PicoIn.hwSelect) {
PicoIn.AHW &= ~PAHW_GG; // requires SMS mode
break;
}
for (i = 0; i < sizeof(no_fmsound)/sizeof(*no_fmsound); i++)
if ((id == no_fmsound[i] || ck == no_fmsound[i])) {
Pico.m.hardware &= ~PMS_HW_FM; // incompatible with FM
break;
}
break;
}
}