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Update m285/BMC-A65AS

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This commit is contained in:
negativeExponent
2022-02-18 19:45:05 +08:00
parent d14b2aa0cf
commit ea0e198cf9
2 changed files with 12 additions and 11 deletions
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21
src/boards/datalatch.c
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@@ -512,33 +512,34 @@ void Mapper538_Init(CartInfo *info) {
* mode (one screen) and 32K bankswitching, second one have only
* 16 bankswitching mode and normal mirroring... But there is no any
* correlations between modes and they can be used in one mapper code.
*
* Submapper 0 - 3-in-1 (N068)
* Submapper 0 - 3-in-1 (N080)
* Submapper 1 - 4-in-1 (JY-066)
*/
static int A65ASsubmapper;
static void BMCA65ASSync(void) {
if (latche & 0x40)
setprg32(0x8000, (latche >> 1) & 0x0F);
else {
if (A65ASsubmapper == 1) {
setprg16(0x8000, ((latche & 0x38) >> 0) | (latche & 7));
setprg16(0xC000, ((latche & 0x38) >> 0) | 7);
} else {
setprg16(0x8000, ((latche & 0x30) >> 1) | (latche & 7));
setprg16(0xC000, ((latche & 0x30) >> 1) | 7);
} else {
setprg16(0x8000, latche & 0x0F);
setprg16(0xC000, latche & 0x0F | 7);
}
}
setchr8(0);
if (latche & 0x80)
setmirror(MI_0 + (((latche >> 5) & 1)));
else {
if (A65ASsubmapper == 1) /* added as workaround since games for this cart uses vertical mirroring */
setmirror(MI_V);
else
setmirror(((latche >> 3) & 1) ^ 1);
}
else
setmirror(((latche >> 3) & 1) ^ 1);
}
void BMCA65AS_Init(CartInfo *info) {
A65ASsubmapper = info->submapper; /* not a real submapper */
A65ASsubmapper = info->submapper;
Latch_Init(info, BMCA65ASSync, 0, 0x8000, 0xFFFF, 0, 0);
}