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py: Implement more binary ops for viper emitter.

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This included a bit of restructuring of the assembler backends.  Note
that the ARM backend is missing a few functions and won't compile.
This commit is contained in:
Damien George
2014-09-29 18:45:42 +01:00
parent 6f81348fa2
commit 3112cde900
7 changed files with 260 additions and 117 deletions
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12
py/asmarm.c
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@@ -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));