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x86-64 recompiler now saves/restores correct registers on entry/exit of code block.

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This commit is contained in:
SarahW 2016-05-18 20:06:28 +01:00
commit abf975e2af
3 changed files with 17 additions and 8 deletions
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21
src/codegen_x86-64.c
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@ -246,10 +246,10 @@ void codegen_block_init(uint32_t phys_addr)
while (block_pos < BLOCK_EXIT_OFFSET)
addbyte(0x90); /*NOP*/
block_pos = BLOCK_EXIT_OFFSET; /*Exit code*/
addbyte(0x48); /*ADDL $32,%rsp*/
addbyte(0x48); /*ADDL $40,%rsp*/
addbyte(0x83);
addbyte(0xC4);
addbyte(0x20);
addbyte(0x28);
addbyte(0x41); /*POP R15*/
addbyte(0x5f);
addbyte(0x41); /*POP R14*/
@ -258,11 +258,17 @@ void codegen_block_init(uint32_t phys_addr)
addbyte(0x5d);
addbyte(0x41); /*POP R12*/
addbyte(0x5c);
addbyte(0x5f); /*POP RDI*/
addbyte(0x5e); /*POP RSI*/
addbyte(0x5d); /*POP RBP*/
addbyte(0x5b); /*POP RDX*/
addbyte(0xC3); /*RET*/
cpu_block_end = 0;
block_pos = 0; /*Entry code*/
addbyte(0x53); /*PUSH RBX*/
addbyte(0x55); /*PUSH RBP*/
addbyte(0x56); /*PUSH RSI*/
addbyte(0x57); /*PUSH RDI*/
addbyte(0x41); /*PUSH R12*/
addbyte(0x54);
addbyte(0x41); /*PUSH R13*/
@ -271,10 +277,10 @@ void codegen_block_init(uint32_t phys_addr)
addbyte(0x56);
addbyte(0x41); /*PUSH R15*/
addbyte(0x57);
addbyte(0x48); /*SUBL $32,%rsp*/
addbyte(0x48); /*SUBL $40,%rsp*/
addbyte(0x83);
addbyte(0xEC);
addbyte(0x20);
addbyte(0x28);
addbyte(0x48); /*MOVL EBP, &EAX*/
addbyte(0xBD);
addquad((uint64_t)&EAX);
@ -446,10 +452,10 @@ void codegen_block_end()
addlong(codegen_block_full_ins);
}
#endif
addbyte(0x48); /*ADDL $32,%rsp*/
addbyte(0x48); /*ADDL $40,%rsp*/
addbyte(0x83);
addbyte(0xC4);
addbyte(0x20);
addbyte(0x28);
addbyte(0x41); /*POP R15*/
addbyte(0x5f);
addbyte(0x41); /*POP R14*/
@ -458,7 +464,10 @@ void codegen_block_end()
addbyte(0x5d);
addbyte(0x41); /*POP R12*/
addbyte(0x5c);
addbyte(0x5f); /*POP RDI*/
addbyte(0x5e); /*POP RSI*/
addbyte(0x5d); /*POP RBP*/
addbyte(0x5b); /*POP RDX*/
addbyte(0xC3); /*RET*/
if (block_pos > BLOCK_GPF_OFFSET)