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py/asmx64: Support all 16 regs in reg to memory move instructions.

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This commit is contained in:
Damien George 2016-02-15 09:05:50 +00:00
parent 46fc7a3d75
commit 94e4bd456f
1 changed files with 6 additions and 9 deletions
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15
py/asmx64.c
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@ -325,31 +325,28 @@ void asm_x64_mov_r64_r64(asm_x64_t *as, int dest_r64, int src_r64) {
} }
void asm_x64_mov_r8_to_mem8(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp) { void asm_x64_mov_r8_to_mem8(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp) {
assert(dest_r64 < 8); if (src_r64 < 8 && dest_r64 < 8) {
if (src_r64 < 8) {
asm_x64_write_byte_1(as, OPCODE_MOV_R8_TO_RM8); asm_x64_write_byte_1(as, OPCODE_MOV_R8_TO_RM8);
} else { } else {
asm_x64_write_byte_2(as, REX_PREFIX | REX_R, OPCODE_MOV_R8_TO_RM8); asm_x64_write_byte_2(as, REX_PREFIX | REX_R_FROM_R64(src_r64) | REX_B_FROM_R64(dest_r64), OPCODE_MOV_R8_TO_RM8);
} }
asm_x64_write_r64_disp(as, src_r64, dest_r64, dest_disp); asm_x64_write_r64_disp(as, src_r64, dest_r64, dest_disp);
} }
void asm_x64_mov_r16_to_mem16(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp) { void asm_x64_mov_r16_to_mem16(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp) {
assert(dest_r64 < 8); if (src_r64 < 8 && dest_r64 < 8) {
if (src_r64 < 8) {
asm_x64_write_byte_2(as, OP_SIZE_PREFIX, OPCODE_MOV_R64_TO_RM64); asm_x64_write_byte_2(as, OP_SIZE_PREFIX, OPCODE_MOV_R64_TO_RM64);
} else { } else {
asm_x64_write_byte_3(as, OP_SIZE_PREFIX, REX_PREFIX | REX_R, OPCODE_MOV_R64_TO_RM64); asm_x64_write_byte_3(as, OP_SIZE_PREFIX, REX_PREFIX | REX_R_FROM_R64(src_r64) | REX_B_FROM_R64(dest_r64), OPCODE_MOV_R64_TO_RM64);
} }
asm_x64_write_r64_disp(as, src_r64, dest_r64, dest_disp); asm_x64_write_r64_disp(as, src_r64, dest_r64, dest_disp);
} }
void asm_x64_mov_r32_to_mem32(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp) { void asm_x64_mov_r32_to_mem32(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp) {
assert(dest_r64 < 8); if (src_r64 < 8 && dest_r64 < 8) {
if (src_r64 < 8) {
asm_x64_write_byte_1(as, OPCODE_MOV_R64_TO_RM64); asm_x64_write_byte_1(as, OPCODE_MOV_R64_TO_RM64);
} else { } else {
asm_x64_write_byte_2(as, REX_PREFIX | REX_R, OPCODE_MOV_R64_TO_RM64); asm_x64_write_byte_2(as, REX_PREFIX | REX_R_FROM_R64(src_r64) | REX_B_FROM_R64(dest_r64), OPCODE_MOV_R64_TO_RM64);
} }
asm_x64_write_r64_disp(as, src_r64, dest_r64, dest_disp); asm_x64_write_r64_disp(as, src_r64, dest_r64, dest_disp);
} }