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Another 64-bit old recompiler change.

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This commit is contained in:
OBattler
2020-07-16 01:39:55 +02:00
parent f1f99aba89
commit 4cd95df959
2 changed files with 6 additions and 2 deletions
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4
src/codegen/codegen_x86-64.c
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@@ -309,6 +309,8 @@ void codegen_block_start_recompile(codeblock_t *block)
addbyte(0xf6); addbyte(0xf6);
#endif #endif
call(block, (uintptr_t)x86gpf); call(block, (uintptr_t)x86gpf);
while (block_pos < BLOCK_EXIT_OFFSET)
addbyte(0x90); /*NOP*/
#else #else
addbyte(0xc6); /* mov byte ptr[&(cpu_state.abrt)],ABRT_GPF */ addbyte(0xc6); /* mov byte ptr[&(cpu_state.abrt)],ABRT_GPF */
addbyte(0x05); addbyte(0x05);
@@ -320,8 +322,6 @@ void codegen_block_start_recompile(codeblock_t *block)
addbyte(0xa3); addbyte(0xa3);
addlong((uint32_t) (uintptr_t) &(abrt_error)); addlong((uint32_t) (uintptr_t) &(abrt_error));
#endif #endif
while (block_pos < BLOCK_EXIT_OFFSET)
addbyte(0x90); /*NOP*/
block_pos = BLOCK_EXIT_OFFSET; /*Exit code*/ block_pos = BLOCK_EXIT_OFFSET; /*Exit code*/
addbyte(0x48); /*ADDL $40,%rsp*/ addbyte(0x48); /*ADDL $40,%rsp*/
addbyte(0x83); addbyte(0x83);

4
src/codegen/codegen_x86-64.h
View File

@@ -8,7 +8,11 @@
#define HASH(l) ((l) & 0x1ffff) #define HASH(l) ((l) & 0x1ffff)
#define BLOCK_EXIT_OFFSET 0x7e0 #define BLOCK_EXIT_OFFSET 0x7e0
#ifdef OLD_GPF
#define BLOCK_GPF_OFFSET (BLOCK_EXIT_OFFSET - 20) #define BLOCK_GPF_OFFSET (BLOCK_EXIT_OFFSET - 20)
#else
#define BLOCK_GPF_OFFSET (BLOCK_EXIT_OFFSET - 15)
#endif
#define BLOCK_MAX 1620 #define BLOCK_MAX 1620