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Add branch_if_carry_set().

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This commit is contained in:
Andrew Keeton 2014-11-06 19:39:46 -05:00
parent eb5c3f3c2a
commit da6a28f639
1 changed files with 6 additions and 0 deletions
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6
src/machine.rs
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@ -554,6 +554,12 @@ impl Machine {
} }
} }
fn branch_if_carry_set(&mut self, addr: Address) {
if self.registers.status.contains(PS_CARRY) {
self.registers.program_counter = addr;
}
}
fn branch_if_minus(&mut self, addr: Address) { fn branch_if_minus(&mut self, addr: Address) {
if self.registers.status.contains(PS_NEGATIVE) { if self.registers.status.contains(PS_NEGATIVE) {
self.registers.program_counter = addr; self.registers.program_counter = addr;