From 10359224d495d5b3c6428fa5bf3e2e1ddcd2039c Mon Sep 17 00:00:00 2001
From: drmortalwombat <90205530+drmortalwombat@users.noreply.github.com>
Date: Sun, 8 Jan 2023 10:38:58 +0100
Subject: [PATCH] Fix write to CPU port not marked as volatile

---
 include/c64/memmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/c64/memmap.c b/include/c64/memmap.c
index 63756c2..359a5d0 100644
--- a/include/c64/memmap.c
+++ b/include/c64/memmap.c
@@ -59,5 +59,5 @@ void mmap_trampoline(void)
 void mmap_set(char pla)
 {
 	PLAShadow = pla;
-	*((char *)0x01) = pla;
+	*((volatile char *)0x01) = pla;
 }