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Mapper 176: Fixed issues with Kirby 13-in-1 and Jingxuan Mali 25-in-1.

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NewRisingSun
2025-09-12 01:54:00 +02:00
parent 2197931485
commit b6870c3e14
1 changed files with 4 additions and 2 deletions
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6
src/boards/fk23c.c
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@@ -107,7 +107,7 @@ static void cwrap(uint32 A, uint32 V)
/* some workaround for chr rom / ram access */ /* some workaround for chr rom / ram access */
if (!VROM_size) if (!VROM_size)
bank = 0; bank = 0;
else if (CHRRAMSIZE && fk23_regs[0] & 0x20) else if (fk23_regs[0] &0x20 && ~fk23_regs[0] &0x40 && CHRRAMSIZE || VROM_size == 0)
bank = 0x10; bank = 0x10;
if (CHR_MIXED && V < 8) bank = 0x10; /* first 8K of chr bank is RAM */ if (CHR_MIXED && V < 8) bank = 0x10; /* first 8K of chr bank is RAM */
@@ -175,7 +175,7 @@ static void SyncPRG(void)
switch (subType) switch (subType)
{ {
case 1: /* FK-xxx */ case 1: /* FK-xxx */
if (PRG_MODE == 0) mask = 0xFF; /* Mode 0 allows the MMC3 to address 2 MiB rather than the usual 512 KiB. */ if (PRG_MODE == 0 && MMC3_EXTENDED) mask = 0xFF; /* Mode 0 allows the MMC3 to address 2 MiB rather than the usual 512 KiB. */
break; break;
case 2: /* FS005 */ case 2: /* FS005 */
prg_base |= fk23_regs[0] << 4 & 0x080 | fk23_regs[0] << 1 & 0x100 | fk23_regs[2] << 3 & 0x600 | fk23_regs[2] << 6 & 0x800; prg_base |= fk23_regs[0] << 4 & 0x080 | fk23_regs[0] << 1 & 0x100 | fk23_regs[2] << 3 & 0x600 | fk23_regs[2] << 6 & 0x800;
@@ -394,6 +394,7 @@ static void Reset(void)
} }
fk23_regs[0] = fk23_regs[1] = fk23_regs[2] = fk23_regs[3] = fk23_regs[4] = fk23_regs[5] = fk23_regs[6] = fk23_regs[7] = 0; fk23_regs[0] = fk23_regs[1] = fk23_regs[2] = fk23_regs[3] = fk23_regs[4] = fk23_regs[5] = fk23_regs[6] = fk23_regs[7] = 0;
if (subType == 1) fk23_regs[1] = 0xFF;
mmc3_regs[0] = 0; mmc3_regs[0] = 0;
mmc3_regs[1] = 2; mmc3_regs[1] = 2;
mmc3_regs[2] = 4; mmc3_regs[2] = 4;
@@ -415,6 +416,7 @@ static void Reset(void)
static void Power(void) static void Power(void)
{ {
fk23_regs[0] = fk23_regs[1] = fk23_regs[2] = fk23_regs[3] = fk23_regs[4] = fk23_regs[5] = fk23_regs[6] = fk23_regs[7] = 0; fk23_regs[0] = fk23_regs[1] = fk23_regs[2] = fk23_regs[3] = fk23_regs[4] = fk23_regs[5] = fk23_regs[6] = fk23_regs[7] = 0;
if (subType == 1) fk23_regs[1] = 0xFF;
mmc3_regs[0] = 0; mmc3_regs[0] = 0;
mmc3_regs[1] = 2; mmc3_regs[1] = 2;
mmc3_regs[2] = 4; mmc3_regs[2] = 4;