diff options
Diffstat (limited to 'py/asmarm.c')
| -rw-r--r-- | py/asmarm.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/py/asmarm.c b/py/asmarm.c index 0d5568692..8dbd9ad20 100644 --- a/py/asmarm.c +++ b/py/asmarm.c @@ -170,6 +170,11 @@ STATIC uint asm_arm_op_sub_imm(uint rd, uint rn, uint imm) { return 0x2400000 | (rn << 16) | (rd << 12) | (imm & 0xFF); } +STATIC uint asm_arm_op_sub_reg(uint rd, uint rn, uint rm) { + // sub rd, rn, rm + return 0x0400000 | (rn << 16) | (rd << 12) | rm; +} + void asm_arm_bkpt(asm_arm_t *as) { // bkpt #0 emit_al(as, 0x1200070); @@ -298,11 +303,16 @@ void asm_arm_less_op(asm_arm_t *as, uint rd, uint rn, uint rm) { emit(as, asm_arm_op_mov_imm(rd, 0) | ASM_ARM_CC_GE); // movge rd, #0 } -void asm_arm_add_reg(asm_arm_t *as, uint rd, uint rn, uint rm) { +void asm_arm_add_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm) { // add rd, rn, rm emit_al(as, asm_arm_op_add_reg(rd, rn, rm)); } +void asm_arm_sub_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm) { + // sub rd, rn, rm + emit_al(as, asm_arm_op_sub_reg(rd, rn, rm)); +} + void asm_arm_mov_reg_local_addr(asm_arm_t *as, uint rd, int local_num) { // add rd, sp, #local_num*4 emit_al(as, asm_arm_op_add_imm(rd, ASM_ARM_REG_SP, local_num << 2)); |