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use super::{ Instruction, Address };
impl Instruction {
fn new_subleq(a: &Address, b: &Address, c: &Address) -> Instruction {
Instruction {
name: "subleq".to_string(),
args: vec![a.clone(), b.clone(), c.clone()],
}
}
pub(crate) fn collapse(&mut self, next: usize) -> Vec<Instruction> {
self.name = self.name.to_lowercase();
static Z: Address = Address::Memory(0);
match &*self.name {
"subleq" => vec![self.clone()],
"jmp" => vec![
Instruction::new_subleq(&Z, &Z, &self.args[0]),
],
"add" => vec![
Instruction::new_subleq(&self.args[0], &Z, &Address::Instruction(next + 1)),
Instruction::new_subleq(&Z, &self.args[1], &Address::Instruction(next + 2)),
Instruction::new_subleq(&Z, &Z, &Address::Instruction(next + 3)),
],
_ => panic!("Unknown instruction {}!", self.name),
}
}
}
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