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Mapper 344: Remove hack to accomodate a bad dump that made it incompatible with other multicarts using the same PCB.

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This commit is contained in:
NewRisingSun
2022-03-01 17:15:06 +01:00
parent 48d548d23b
commit 7a9a044d22
1 changed files with 11 additions and 12 deletions
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23
src/boards/gn26.c
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@@ -27,26 +27,25 @@
#include "mmc3.h"
static void BMCGN26CW(uint32 A, uint8 V) {
uint32 base = (EXPREGS[0] & 0x03) << 7;
setchr1(A, base | (V & 0xFF));
int chrAND = EXPREGS[0]&0x04? 0xFF: 0x7F;
int chrOR = EXPREGS[0] <<7;
setchr1(A, V &chrAND | chrOR &~chrAND);
}
static void BMCGN26PW(uint32 A, uint8 V) {
/* Re-ordered -> 0:SF4 1:Contra Force 2:Revolution Hero */
uint32 table[] = { 0, 0, 1, 2 };
uint32 base = table[(EXPREGS[0] & 0x03)];
if (EXPREGS[0] & 4) {
if (A == 0x8000)
setprg32(0x8000, (base << 2) | (V >> 2));
setprg32(0x8000, (EXPREGS[0] << 2) | (V >> 2));
} else
setprg8(A, (base << 4) | (V & 0x0F));
setprg8(A, (EXPREGS[0] << 4) | (V & 0x0F));
}
static DECLFW(BMCGN26Write) {
EXPREGS[0] = A & 0x0F;
FixMMC3PRG(MMC3_cmd);
FixMMC3CHR(MMC3_cmd);
if (A001B &0x80 && ~A001B &0x40) {
EXPREGS[0] = A;
FixMMC3PRG(MMC3_cmd);
FixMMC3CHR(MMC3_cmd);
}
}
static void BMCGN26Reset(void) {
@@ -56,7 +55,7 @@ static void BMCGN26Reset(void) {
static void BMCGN26Power(void) {
GenMMC3Power();
SetWriteHandler(0x6800, 0x68FF, BMCGN26Write);
SetWriteHandler(0x6000, 0x7FFF, BMCGN26Write);
}
void BMCGN26_Init(CartInfo *info) {