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bugfix for the bit opcode

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This commit is contained in:
Sam M W 2023-04-15 16:42:05 +01:00
parent 7df9160e32
commit 70e85a2eaf
1 changed files with 2 additions and 2 deletions
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4
src/cpu.rs
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@ -237,10 +237,10 @@ impl<M: Bus> CPU<M> {
let is_zero = 0 == res; let is_zero = 0 == res;
// The N flag is set to bit 7 of the byte from memory. // 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. // 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( self.registers.status.set_with_mask(
Status::PS_ZERO | Status::PS_NEGATIVE | Status::PS_OVERFLOW, Status::PS_ZERO | Status::PS_NEGATIVE | Status::PS_OVERFLOW,