diff options
| author | aiju <devnull@localhost> | 2014-02-22 17:43:15 +0100 |
|---|---|---|
| committer | aiju <devnull@localhost> | 2014-02-22 17:43:15 +0100 |
| commit | af8c91cf6d30628c17c7d7cb9733dee9e7488ab0 (patch) | |
| tree | 78a21b6b94bd39829463f9910dc231b62f1996b9 /sys/src/games/nes/cpu.c | |
| parent | 2bfcea9197d7b18219a7f2dea1a079ec91cf2cc5 (diff) | |
games/nes: mmc3 and bugfixes
Diffstat (limited to 'sys/src/games/nes/cpu.c')
| -rw-r--r-- | sys/src/games/nes/cpu.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/src/games/nes/cpu.c b/sys/src/games/nes/cpu.c index f0469db8c..e21c2e88c 100644 --- a/sys/src/games/nes/cpu.c +++ b/sys/src/games/nes/cpu.c @@ -5,7 +5,7 @@ u16int pc, curpc; u8int rA, rX, rY, rS, rP; -int nmi; +u8int irq, nmi; static u8int fetch8(void) @@ -249,6 +249,10 @@ step(void) nmi = 0; return 7; } + if(irq && (rP & 4) == 0){ + interrupt(0, 0); + return 7; + } curpc = pc; op = fetch8(); if(trace) |