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1 files changed, 3 insertions, 0 deletions
| -rw-r--r-- | assembler/src/parser/instruction.rs | 3 |
diff --git a/assembler/src/parser/instruction.rs b/assembler/src/parser/instruction.rs index f78c9a6..c44c1de 100644 --- a/assembler/src/parser/instruction.rs +++ b/assembler/src/parser/instruction.rs @@ -2,6 +2,9 @@ use super::{ Instruction, Address }; impl Instruction { fn new_subleq(a: &Address, b: &Address, c: &Address) -> Instruction { + if let Address::Constants(_) = c { + panic!("Constants cannot be the third subleq argument!"); + } Instruction { name: "subleq".to_string(), args: vec![a.clone(), b.clone(), c.clone()], |