From f5f9eb801aee378c0a40c0c5da9191ab6e4026c6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Markus=20Fr=C3=B6schle?= <mfro@mubf.de>
Date: Tue, 19 Nov 2013 17:20:58 +0000
Subject: [PATCH] added register save and restore

---
 BaS_gcc/sources/exceptions.S | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/BaS_gcc/sources/exceptions.S b/BaS_gcc/sources/exceptions.S
index 427004d..df08555 100644
--- a/BaS_gcc/sources/exceptions.S
+++ b/BaS_gcc/sources/exceptions.S
@@ -554,8 +554,17 @@ access_mmu:
 		move.l	MCF_MMU_MMUAR,d0
 		cmp.l	#__FASTRAM_END,d0	// above max User RAM area?
 		bge		bus_error			// -> bus error
-		bsr		_mmutr_miss			// else we have an MMU TLB miss
+
+		lea		-4*4(sp),sp
+		movem.l	d0-d1/a0-a1,(sp)
+
+		jsr		_mmutr_miss			// else we have an MMU TLB miss
+
+		movem.l	(sp),d0-d1/a0-a1
+		lea		4*4(sp),sp
+
 		move.l	(sp)+,d0			// restore register
+
 		rte
 
 bus_error: