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x86 recompiler now saves/restores correct registers on entry/exit of code block.

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This commit is contained in:
SarahW 2016-05-07 15:34:08 +01:00
commit a151e90aeb
1 changed files with 9 additions and 0 deletions
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9
src/codegen_x86.c
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@ -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)