diff options
Diffstat (limited to 'py/asmx86.c')
| -rw-r--r-- | py/asmx86.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/py/asmx86.c b/py/asmx86.c index 1570d9f7c0..ffe3e5e439 100644 --- a/py/asmx86.c +++ b/py/asmx86.c @@ -49,6 +49,7 @@ //#define OPCODE_MOV_I8_TO_R8 (0xb0) /* +rb */ #define OPCODE_MOV_I32_TO_R32 (0xb8) //#define OPCODE_MOV_I32_TO_RM32 (0xc7) +#define OPCODE_MOV_R8_TO_RM8 (0x88) /* /r */ #define OPCODE_MOV_R32_TO_RM32 (0x89) #define OPCODE_MOV_RM32_TO_R32 (0x8b) #define OPCODE_LEA_MEM_TO_R32 (0x8d) /* /r */ @@ -85,6 +86,8 @@ #define MODRM_RM_REG (0xc0) #define MODRM_RM_R32(x) (x) +#define OP_SIZE_PREFIX (0x66) + #define IMM32_L0(x) ((x) & 0xff) #define IMM32_L1(x) (((x) >> 8) & 0xff) #define IMM32_L2(x) (((x) >> 16) & 0xff) @@ -232,7 +235,17 @@ void asm_x86_mov_r32_to_r32(asm_x86_t *as, int src_r32, int dest_r32) { asm_x86_write_byte_2(as, OPCODE_MOV_R32_TO_RM32, MODRM_R32(src_r32) | MODRM_RM_REG | MODRM_RM_R32(dest_r32)); } -STATIC void asm_x86_mov_r32_to_disp(asm_x86_t *as, int src_r32, int dest_r32, int dest_disp) { +void asm_x86_mov_r8_to_disp(asm_x86_t *as, int src_r32, int dest_r32, int dest_disp) { + asm_x86_write_byte_1(as, OPCODE_MOV_R8_TO_RM8); + asm_x86_write_r32_disp(as, src_r32, dest_r32, dest_disp); +} + +void asm_x86_mov_r16_to_disp(asm_x86_t *as, int src_r32, int dest_r32, int dest_disp) { + asm_x86_write_byte_2(as, OP_SIZE_PREFIX, OPCODE_MOV_R32_TO_RM32); + asm_x86_write_r32_disp(as, src_r32, dest_r32, dest_disp); +} + +void asm_x86_mov_r32_to_disp(asm_x86_t *as, int src_r32, int dest_r32, int dest_disp) { asm_x86_write_byte_1(as, OPCODE_MOV_R32_TO_RM32); asm_x86_write_r32_disp(as, src_r32, dest_r32, dest_disp); } |