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#pragma once
#include "dis.h"
static inline void PUSHone(void **codep, int Rt) {
if (codep->arch.pc_low_bit)
op32(codep, 0x0d04f84d | Rt << 28);
else
op32(codep, 0xe52d0004 | Rt << 12);
}
static inline void POPone(void **codep, int Rt) {
if (codep->arch.pc_low_bit)
op32(codep, 0x0b04f85d | Rt << 28);
else
op32(codep, 0xe49d0004 | Rt << 12);
}
static inline void POPmulti(void **codep, uint16_t mask) {
if (codep->arch.pc_low_bit)
op32(codep, 0x0000e8bd | mask << 16);
else
op32(codep, 0xe8bd0000 | mask);
}
static inline void MOVW_MOVT(void **codep, int Rd, uint32_t val) {
uint16_t hi = val >> 16, lo = (uint16_t) val;
if (codep->arch.pc_low_bit) {
op32(codep, 0x0000f240 | Rd << 24 | lo >> 12 | (lo >> 11 & 1) << 10 |
(lo >> 8 & 7) << 28 | (lo & 0xff) << 16);
op32(codep, 0x0000f2c0 | Rd << 24 | hi >> 12 | (hi >> 11 & 1) << 10 |
(hi >> 8 & 7) << 28 | (hi & 0xff) << 16);
} else {
op32(codep, 0xe3000000 | Rd << 12 | (lo >> 12) << 16 | (lo & 0xfff));
op32(codep, 0xe3400000 | Rd << 12 | (hi >> 12) << 16 | (hi & 0xfff));
}
}
static inline void STRri(void **codep, int Rt, int Rn, uint32_t off) {
if (codep->arch.pc_low_bit)
op32(codep, 0x0000f8c0 | Rn | Rt << 28 | off << 16);
else
op32(codep, 0xe4800000 | Rn << 16 | Rt << 12 | off);
}
static inline void LDRxi(void **codep, int Rt, int Rn, uint32_t off,
enum pcrel_load_mode load_mode) {
if (codep->arch.pc_low_bit) {
int subop, sign;
switch (load_mode) {
case PLM_U8: subop = 0; sign = 0; break;
case PLM_S8: subop = 0; sign = 1; break;
case PLM_U16: subop = 1; sign = 0; break;
case PLM_S16: subop = 1; sign = 1; break;
case PLM_U32: subop = 2; sign = 0; break;
default: __builtin_abort();
}
op32(codep, 0x0000f890 | Rn | Rt << 28 | subop << 5 | sign << 8 | off << 16);
} else {
int is_byte, subop, not_ldrd;
switch (load_mode) {
case PLM_U8: is_byte = 1; goto type1;
case PLM_S8: subop = 13; not_ldrd = 1; goto type2;
case PLM_U16: subop = 11; not_ldrd = 1; goto type2;
case PLM_S16: subop = 15; not_ldrd = 1; goto type2;
case PLM_U32: is_byte = 0; goto type1;
case PLM_U128: subop = 13; not_ldrd = 0; goto type2;
type1:
op32(codep, 0xe5900000 | Rn << 16 | Rt << 12 | off);
break;
type2:
op32(codep, 0xe1c00000 | Rn << 16 | Rt << 12 | subop << 4 |
(off & 0xf) | (off & 0xf0) << 4 | not_ldrd << 20);
break;
default:
__builtin_abort();
}
}
}
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