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Merge pull request #68 from mre/bit

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bugfix for the bit opcode
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omarandlorraine 2023-04-15 22:05:54 +01:00 committed by GitHub
commit 6232b3bdbd
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1 changed files with 2 additions and 2 deletions
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src/cpu.rs
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@ -237,10 +237,10 @@ impl<M: Bus> CPU<M> {
let is_zero = 0 == res;
// The N flag is set to bit 7 of the byte from memory.
let bit7 = 0 != (0x80 & res);
let bit7 = 0 != (0x80 & m);
// The V flag is set to bit 6 of the byte from memory.
let bit6 = 0 != (0x40 & res);
let bit6 = 0 != (0x40 & m);
self.registers.status.set_with_mask(
Status::PS_ZERO | Status::PS_NEGATIVE | Status::PS_OVERFLOW,