From c451b9b3878da0c81feabb9501a9af55644ac12e Mon Sep 17 00:00:00 2001
From: Mike Pavone <pavone@retrodev.com>
Date: Sat, 8 Jun 2013 11:31:52 -0700
Subject: Use a call instruction to figure out the original native address when
 retranslating so that it does not get lost when the byte transforms from a
 instruction word to extension word

---
 zruntime.S | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'zruntime.S')

diff --git a/zruntime.S b/zruntime.S
index d6250fb..6dc353d 100644
--- a/zruntime.S
+++ b/zruntime.S
@@ -247,8 +247,12 @@ z80_io_write:
 	
 	.global z80_retrans_stub
 z80_retrans_stub:
+	pop %r14
 	call z80_save_context
+	/* adjust for mov and call instructions */
+	sub $10, %r14
 	mov %r13d, %edi
+	mov %r14, %rdx
 	push %rsi
 	call z80_retranslate_inst
 	pop %rsi
-- 
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