From e534b07a70497eca8a74b3266f44b053d608ca2a Mon Sep 17 00:00:00 2001
From: gbeauche <>
Date: Mon, 16 Jan 2006 21:31:41 +0000
Subject: [PATCH] more precise callee-saved register set

---
 BasiliskII/src/uae_cpu/compiler/codegen_x86.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/BasiliskII/src/uae_cpu/compiler/codegen_x86.cpp b/BasiliskII/src/uae_cpu/compiler/codegen_x86.cpp
index 0f997f35..a7a57986 100644
--- a/BasiliskII/src/uae_cpu/compiler/codegen_x86.cpp
+++ b/BasiliskII/src/uae_cpu/compiler/codegen_x86.cpp
@@ -111,11 +111,12 @@ uae_u8 call_saved[]={0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0};
      by pushing, even though they are "saved" across function calls
 */
 #if defined(__x86_64__)
-/* callee-saved registers as defined by Linux/x86_64 ABI: rbx, rbp, rsp, r12 - r15 */
+/* callee-saved registers as defined by Linux AMD64 ABI: rbx, rbp, rsp, r12 - r15 */
 /* preserve r11 because it's generally used to hold pointers to functions */
 static const uae_u8 need_to_preserve[]={0,0,0,1,0,1,0,0,0,0,0,1,1,1,1,1};
 #else
-static const uae_u8 need_to_preserve[]={1,1,1,1,0,1,1,1};
+/* callee-saved registers as defined by System V IA-32 ABI: edi, esi, ebx, ebp */
+static const uae_u8 need_to_preserve[]={0,0,0,1,0,1,1,1};
 #endif
 
 /* Whether classes of instructions do or don't clobber the native flags */