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py: Allow asmx64 to compile with -Wsign-compare.

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See issue #699.
This commit is contained in:
Damien George 2015-01-22 14:08:58 +00:00
parent 6d1f5070ce
commit e5bcbcdebd
2 changed files with 11 additions and 10 deletions
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15
py/asmx64.c
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@ -159,6 +159,7 @@ void asm_x64_start_pass(asm_x64_t *as, uint pass) {
void asm_x64_end_pass(asm_x64_t *as) {
// could check labels are resolved...
(void)as;
}
// all functions must go through this one to emit bytes
@ -501,11 +502,11 @@ void asm_x64_setcc_r8(asm_x64_t *as, int jcc_type, int dest_r8) {
asm_x64_write_byte_3(as, OPCODE_SETCC_RM8_A, OPCODE_SETCC_RM8_B | jcc_type, MODRM_R64(0) | MODRM_RM_REG | MODRM_RM_R64(dest_r8));
}
void asm_x64_label_assign(asm_x64_t *as, int label) {
void asm_x64_label_assign(asm_x64_t *as, mp_uint_t label) {
assert(label < as->max_num_labels);
if (as->pass < ASM_X64_PASS_EMIT) {
// assign label offset
assert(as->label_offsets[label] == -1);
assert(as->label_offsets[label] == (mp_uint_t)-1);
as->label_offsets[label] = as->code_offset;
} else {
// ensure label offset has not changed from PASS_COMPUTE to PASS_EMIT
@ -514,15 +515,15 @@ void asm_x64_label_assign(asm_x64_t *as, int label) {
}
}
STATIC mp_uint_t get_label_dest(asm_x64_t *as, int label) {
STATIC mp_uint_t get_label_dest(asm_x64_t *as, mp_uint_t label) {
assert(label < as->max_num_labels);
return as->label_offsets[label];
}
void asm_x64_jmp_label(asm_x64_t *as, int label) {
void asm_x64_jmp_label(asm_x64_t *as, mp_uint_t label) {
mp_uint_t dest = get_label_dest(as, label);
mp_int_t rel = dest - as->code_offset;
if (dest != -1 && rel < 0) {
if (dest != (mp_uint_t)-1 && rel < 0) {
// is a backwards jump, so we know the size of the jump on the first pass
// calculate rel assuming 8 bit relative jump
rel -= 2;
@ -541,10 +542,10 @@ void asm_x64_jmp_label(asm_x64_t *as, int label) {
}
}
void asm_x64_jcc_label(asm_x64_t *as, int jcc_type, int label) {
void asm_x64_jcc_label(asm_x64_t *as, int jcc_type, mp_uint_t label) {
mp_uint_t dest = get_label_dest(as, label);
mp_int_t rel = dest - as->code_offset;
if (dest != -1 && rel < 0) {
if (dest != (mp_uint_t)-1 && rel < 0) {
// is a backwards jump, so we know the size of the jump on the first pass
// calculate rel assuming 8 bit relative jump
rel -= 2;

6
py/asmx64.h
View File

@ -104,9 +104,9 @@ void asm_x64_sub_r64_r64(asm_x64_t* as, int dest_r64, int src_r64);
void asm_x64_cmp_r64_with_r64(asm_x64_t* as, int src_r64_a, int src_r64_b);
void asm_x64_test_r8_with_r8(asm_x64_t* as, int src_r64_a, int src_r64_b);
void asm_x64_setcc_r8(asm_x64_t* as, int jcc_type, int dest_r8);
void asm_x64_label_assign(asm_x64_t* as, int label);
void asm_x64_jmp_label(asm_x64_t* as, int label);
void asm_x64_jcc_label(asm_x64_t* as, int jcc_type, int label);
void asm_x64_label_assign(asm_x64_t* as, mp_uint_t label);
void asm_x64_jmp_label(asm_x64_t* as, mp_uint_t label);
void asm_x64_jcc_label(asm_x64_t* as, int jcc_type, mp_uint_t label);
void asm_x64_entry(asm_x64_t* as, int num_locals);
void asm_x64_exit(asm_x64_t* as);
void asm_x64_mov_local_to_r64(asm_x64_t* as, int src_local_num, int dest_r64);