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games/md: ignore invalid writes (makes cave story work)

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This commit is contained in:
cinap_lenrek 2023-10-21 03:43:29 +00:00
parent 22cf5562fa
commit c6ec2041ad
1 changed files with 4 additions and 3 deletions
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7
sys/src/games/md/mem.c
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@ -75,7 +75,7 @@ regwrite(u16int a, u16int v)
case 0x30f3: case 0x30f5: case 0x30f7: case 0x30f9: case 0x30fb:
return;
}
sysfatal("write to 0xa1%.4x (pc=%#.6ux)", a, curpc);
fprint(2, "write to 0xa1%.4x (pc=%#.6ux)", a, curpc);
}
void
@ -286,7 +286,7 @@ memwrite(u32int a, u16int v, u16int m)
break;
default:
invalid:
sysfatal("write to %#.6x (pc=%#.6x)", a, curpc);
fprint(2, "write to %#.6x (pc=%#.6x)", a, curpc);
}
}
@ -404,7 +404,8 @@ z80write(u16int a, u8int v)
memwrite(0xc00000 | a & 0x7e, v | v << 8, (a & 1) != 0 ? 0xff : 0xff00);
return;
}
sysfatal("z80 write to %#.4x (pc=%#.4x)", a, scurpc);
fprint(2, "z80 write to %#.4x (pc=%#.4x)", a, scurpc);
return;
default:
memwrite(z80bank << 15 | a & 0x7ffe, v << 8 | v, (a & 1) != 0 ? 0xff : 0xff00);
}