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Add branch_if_carry_clear().

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This commit is contained in:
Andrew Keeton 2014-11-06 19:32:15 -05:00
parent ecb3f07459
commit be7539d6c9
1 changed files with 6 additions and 0 deletions
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6
src/machine.rs
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@ -541,6 +541,12 @@ impl Machine {
self.registers.program_counter = addr;
}
fn branch_if_carry_clear(&mut self, addr: Address) {
if !self.registers.status.contains(PS_CARRY) {
self.registers.program_counter = addr;
}
}
fn branch_if_minus(&mut self, addr: Address) {
if self.registers.status.contains(PS_NEGATIVE) {
self.registers.program_counter = addr;