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Move GPF and early exit routines out of individual code blocks and into the common helper block.

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This commit is contained in:
SarahW 2019-01-13 12:57:32 +00:00
commit 8998024225
21 changed files with 213 additions and 213 deletions
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30
src/codegen_backend_x86.c
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@ -32,6 +32,9 @@ void *codegen_mem_store_quad;
void *codegen_mem_store_single;
void *codegen_mem_store_double;
void *codegen_gpf_rout;
void *codegen_exit_rout;
int codegen_host_reg_list[CODEGEN_HOST_REGS] =
{
REG_EAX,
@ -49,8 +52,6 @@ int codegen_host_fp_reg_list[CODEGEN_HOST_FP_REGS] =
REG_XMM5
};
static void *mem_abrt_rout;
static void build_load_routine(codeblock_t *block, int size, int is_float)
{
uint8_t *branch_offset;
@ -301,16 +302,19 @@ pclog(" offsetof(codeblock_t, next_2)=%i\n", offsetof(codeblock_t, next_2));
block->head_mem_block = codegen_allocator_allocate(NULL);
block->data = codeblock_allocator_get_ptr(block->head_mem_block);
block_write_data = block->data;
mem_abrt_rout = &block->data[block_pos];
host_x86_ADD32_REG_IMM(block, REG_ESP, REG_ESP, 0x10+4);
build_loadstore_routines(block);
codegen_gpf_rout = &codeblock[block_current].data[block_pos];
host_x86_MOV32_STACK_IMM(block, STACK_ARG0, 0);
host_x86_MOV32_STACK_IMM(block, STACK_ARG1, 0);
host_x86_CALL(block, (void *)x86gpf);
codegen_exit_rout = &codeblock[block_current].data[block_pos];
host_x86_ADD32_REG_IMM(block, REG_ESP, REG_ESP, 64);
host_x86_POP(block, REG_EDI);
host_x86_POP(block, REG_ESI);
host_x86_POP(block, REG_EBP);
host_x86_POP(block, REG_EDX);
host_x86_RET(block);
block_pos = 64;
build_loadstore_routines(block);
block_write_data = NULL;
cpu_state.old_fp_control = 0;
@ -333,18 +337,6 @@ void codegen_set_rounding_mode(int mode)
void codegen_backend_prologue(codeblock_t *block)
{
block_pos = BLOCK_GPF_OFFSET;
host_x86_MOV32_STACK_IMM(block, STACK_ARG0, 0);
host_x86_MOV32_STACK_IMM(block, STACK_ARG1, 0);
host_x86_CALL(block, (void *)x86gpf);
block_pos = BLOCK_EXIT_OFFSET; /*Exit code*/
host_x86_ADD32_REG_IMM(block, REG_ESP, REG_ESP, 64);
host_x86_POP(block, REG_EDI);
host_x86_POP(block, REG_ESI);
host_x86_POP(block, REG_EBP);
host_x86_POP(block, REG_EDX);
host_x86_RET(block);
block_pos = BLOCK_START; /*Entry code*/
host_x86_PUSH(block, REG_EBX);
host_x86_PUSH(block, REG_EBP);