From 617f6759d3ebd63a361f51ef3af0713f644b2520 Mon Sep 17 00:00:00 2001
From: Jonny <j.sinteix@gmail.com>
Date: Thu, 27 Feb 2025 21:53:48 +0000
Subject: [PATCH] fix: underflow detected

---
 src/main/wacc/backend/asmGenerator.scala | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/main/wacc/backend/asmGenerator.scala b/src/main/wacc/backend/asmGenerator.scala
index 5b3db3e..b7c2f5a 100644
--- a/src/main/wacc/backend/asmGenerator.scala
+++ b/src/main/wacc/backend/asmGenerator.scala
@@ -336,6 +336,7 @@ object asmGenerator {
             chain += Jump(LabelArg(OverflowError.errLabel), Cond.Overflow)
           case BinaryOperator.Sub =>
             chain += Subtract(destX, stack.head)
+            chain += Jump(LabelArg(OverflowError.errLabel), Cond.Overflow)
             chain += stack.drop()
             chain += stack.push(destX.size, RAX)
           case BinaryOperator.Mul =>