From 70179984d09f6ab94fcc6b36dc8add44c8b910b8 Mon Sep 17 00:00:00 2001
From: Michel Heily <michelheily@gmail.com>
Date: Mon, 1 Jul 2019 19:25:42 +0300
Subject: [PATCH] cpu: arm: Fix alu_add_update_carry function

Woopsie


Former-commit-id: 2da74e4bfd4b59a2885519a99f4b2c3d83031ee2
---
 src/arm7tdmi/arm/exec.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/arm7tdmi/arm/exec.rs b/src/arm7tdmi/arm/exec.rs
index b332ff8..203229b 100644
--- a/src/arm7tdmi/arm/exec.rs
+++ b/src/arm7tdmi/arm/exec.rs
@@ -131,7 +131,7 @@ impl Core {
     }
 
     fn alu_add_update_carry(a: i32, b: i32, carry: &mut bool) -> i32 {
-        let res = a.wrapping_sub(b);
+        let res = a.wrapping_add(b);
         *carry = res < a;
         res
     }