From 4f6110604326357d378f373b917b92c7ad92997e Mon Sep 17 00:00:00 2001
From: uz <uz@b7a2c559-68d2-44c3-8de9-860c34a00d81>
Date: Sun, 4 Mar 2012 19:25:22 +0000
Subject: [PATCH] The IRQ handler needs to save the registers. By Stefan
 Haubenthal.

git-svn-id: svn://svn.cc65.org/cc65/trunk@5574 b7a2c559-68d2-44c3-8de9-860c34a00d81
---
 libsrc/atmos/crt0.s | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/libsrc/atmos/crt0.s b/libsrc/atmos/crt0.s
index 15aa9509a..bc11ce5d9 100644
--- a/libsrc/atmos/crt0.s
+++ b/libsrc/atmos/crt0.s
@@ -133,7 +133,17 @@ L2:	lda	zpsave,x
 
 IRQStub:
 	cld				; Just to be sure
+	pha
+	txa
+	pha
+	tya
+	pha
 	jsr	callirq			; Call the functions
+	pla
+	tay
+	pla
+	tax
+	pla
 	jmp	IRQInd			; Jump to the saved IRQ vector
 
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