diff options
| -rw-r--r-- | sys/src/games/snes/mem.c | 2 | ||||
| -rw-r--r-- | sys/src/games/snes/ppu.c | 3 |
2 files changed, 3 insertions, 2 deletions
diff --git a/sys/src/games/snes/mem.c b/sys/src/games/snes/mem.c index 1c8728e99..a9156bc25 100644 --- a/sys/src/games/snes/mem.c +++ b/sys/src/games/snes/mem.c @@ -231,7 +231,7 @@ regwrite(u16int p, u8int v) oamaddr = (reg[0x2103] & 1) << 9 | v << 1; break; case 0x2103: - oamaddr = (v & 1) << 9 | reg[0x2102]; + oamaddr = (v & 1) << 9 | reg[0x2102] << 1; break; case 0x2104: if((oamaddr & 1) == 0) diff --git a/sys/src/games/snes/ppu.c b/sys/src/games/snes/ppu.c index b905fc34a..9d3fab477 100644 --- a/sys/src/games/snes/ppu.c +++ b/sys/src/games/snes/ppu.c @@ -877,7 +877,8 @@ ppustep(void) reg[RDNMI] |= VBLANK; if((reg[NMITIMEN] & VBLANK) != 0) nmi = 2; - oamaddr = reg[0x2102] << 1 | (reg[0x2103] & 1) << 9; + if((reg[INIDISP] & 0x80) == 0) + oamaddr = reg[0x2102] << 1 | (reg[0x2103] & 1) << 9; if((reg[NMITIMEN] & AUTOJOY) != 0){ memwrite(0x4016, 1); memwrite(0x4016, 0); |