diff options
Diffstat (limited to 'lib/vnf/src')
| -rw-r--r-- | lib/vnf/src/lib.rs | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/lib/vnf/src/lib.rs b/lib/vnf/src/lib.rs index e2d066b..ab8973b 100644 --- a/lib/vnf/src/lib.rs +++ b/lib/vnf/src/lib.rs @@ -771,10 +771,6 @@ impl Machine { self.status_register.overflow = false; match self.current_instruction.identifier { - // TODO - InstructionIdentifier::Bvc => todo!(), - InstructionIdentifier::Bvs => todo!(), - // Flag instructions. InstructionIdentifier::Sec => self.status_register.carry = true, InstructionIdentifier::Clc => self.status_register.carry = false, @@ -1042,6 +1038,17 @@ impl Machine { self.branch(); } } + InstructionIdentifier::Bvc => { + if !self.status_register.overflow { + self.branch(); + } + } + InstructionIdentifier::Bvs => { + if self.status_register.overflow { + self.branch(); + } + } + InstructionIdentifier::Rts => { // If the stack is empty but we were just running a function, // then assume that the machine is done. |