diff options
Diffstat (limited to 'py/asmx64.c')
| -rw-r--r-- | py/asmx64.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/py/asmx64.c b/py/asmx64.c index c4eb275cbc..0b7c87415a 100644 --- a/py/asmx64.c +++ b/py/asmx64.c @@ -453,6 +453,12 @@ void asm_x64_sub_r64_r64(asm_x64_t *as, int dest_r64, int src_r64) { asm_x64_generic_r64_r64(as, dest_r64, src_r64, OPCODE_SUB_R64_FROM_RM64); } +void asm_x64_mul_r64_r64(asm_x64_t *as, int dest_r64, int src_r64) { + // imul reg64, reg/mem64 -- 0x0f 0xaf /r + asm_x64_write_byte_1(as, REX_PREFIX | REX_W | (dest_r64 < 8 ? 0 : REX_R) | (src_r64 < 8 ? 0 : REX_B)); + asm_x64_write_byte_3(as, 0x0f, 0xaf, MODRM_R64(dest_r64) | MODRM_RM_REG | MODRM_RM_R64(src_r64)); +} + /* void asm_x64_sub_i32_from_r32(asm_x64_t *as, int src_i32, int dest_r32) { if (SIGNED_FIT8(src_i32)) { |