From a151e90aeb0288e23185132a842a651c032ed3bf Mon Sep 17 00:00:00 2001
From: SarahW <SarahW@localhost>
Date: Sat, 7 May 2016 15:34:08 +0100
Subject: [PATCH] x86 recompiler now saves/restores correct registers on
 entry/exit of code block.

---
 src/codegen_x86.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/codegen_x86.c b/src/codegen_x86.c
index 1e4fc27..7841614 100644
--- a/src/codegen_x86.c
+++ b/src/codegen_x86.c
@@ -244,11 +244,17 @@ void codegen_block_init(uint32_t phys_addr)
         addbyte(0x83); /*ADDL $16,%esp*/
         addbyte(0xC4);
         addbyte(0x10);
+        addbyte(0x5f); /*POP EDI*/
+        addbyte(0x5e); /*POP ESI*/
         addbyte(0x5d); /*POP EBP*/
+        addbyte(0x5b); /*POP EDX*/
         addbyte(0xC3); /*RET*/
         cpu_block_end = 0;
         block_pos = 0; /*Entry code*/
+        addbyte(0x53); /*PUSH EBX*/
         addbyte(0x55); /*PUSH EBP*/
+        addbyte(0x56); /*PUSH ESI*/
+        addbyte(0x57); /*PUSH EDI*/
         addbyte(0x83); /*SUBL $16,%esp*/
         addbyte(0xEC);
         addbyte(0x10);
@@ -419,7 +425,10 @@ void codegen_block_end()
         addbyte(0x83); /*ADDL $16,%esp*/
         addbyte(0xC4);
         addbyte(0x10);
+        addbyte(0x5f); /*POP EDI*/
+        addbyte(0x5e); /*POP ESI*/
         addbyte(0x5d); /*POP EBP*/
+        addbyte(0x5b); /*POP EDX*/
         addbyte(0xC3); /*RET*/
         
         if (block_pos > BLOCK_GPF_OFFSET)