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fix status flag bug in ASL and ROL

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This commit is contained in:
Vineet K 2024-07-20 21:18:11 -04:00
parent 70937cd61f
commit 81575946ae
1 changed files with 3 additions and 2 deletions
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5
cpu.c
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@ -204,7 +204,8 @@ ASL(uint16_t mem)
memwrite(mem, tmp & 0xFF);
regs.status.carry = tmp > 0xFF;
STATUS_UPDATE_NZ(tmp);
regs.status.negative = (tmp & (1 << 7)) != 0;
regs.status.zero = (tmp << 1 & 0xFF) == 0;
}
void
@ -536,7 +537,7 @@ ROL(uint16_t mem)
memwrite(mem, tmp);
regs.status.carry = carry;
STATUS_UPDATE_NZ(regs.a);
STATUS_UPDATE_NZ(tmp);
}
void