From cb64e0179468e303c7590d2ad24d6368bf6f91e0 Mon Sep 17 00:00:00 2001
From: Keny C <keny.chatain@mailbox.org>
Date: Sat, 6 Jan 2024 22:33:47 +0100
Subject: [PATCH] Fixed overflow panic

Former-commit-id: 849c5917d53e91eecb3aaa7954f04362ae06b8cd
Former-commit-id: 056dbfa5911d74fb1fa5d99cbe47a642cc4edbd9
---
 core/src/gba.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/src/gba.rs b/core/src/gba.rs
index 1a5af23..9d67b77 100644
--- a/core/src/gba.rs
+++ b/core/src/gba.rs
@@ -215,7 +215,7 @@ impl GameBoyAdvance {
     pub fn frame(&mut self) {
         static mut OVERSHOOT: usize = 0;
         unsafe {
-            OVERSHOOT = CYCLES_FULL_REFRESH - self.run::<false>(CYCLES_FULL_REFRESH - OVERSHOOT);
+            OVERSHOOT = CYCLES_FULL_REFRESH.saturating_sub(self.run::<false>(CYCLES_FULL_REFRESH - OVERSHOOT));
         }
     }
 
@@ -223,7 +223,7 @@ impl GameBoyAdvance {
     fn frame_interruptible(&mut self) {
         static mut OVERSHOOT: usize = 0;
         unsafe {
-            OVERSHOOT = CYCLES_FULL_REFRESH - self.run::<true>(CYCLES_FULL_REFRESH - OVERSHOOT);
+            OVERSHOOT = CYCLES_FULL_REFRESH.saturating_sub(self.run::<true>(CYCLES_FULL_REFRESH - OVERSHOOT));
         }
     }