aboutsummaryrefslogtreecommitdiff
path: root/target/arm/translate.c
diff options
context:
space:
mode:
Diffstat (limited to 'target/arm/translate.c')
-rw-r--r--target/arm/translate.c94
1 files changed, 5 insertions, 89 deletions
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 789abe9..4ae73d1 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -10863,97 +10863,13 @@ static void disas_thumb_insn(DisasContext *s, uint32_t insn)
*/
goto illegal_op;
- case 5:
- /* load/store register offset, in decodetree */
+ case 5: /* load/store register offset, in decodetree */
+ case 6: /* load/store word immediate offset, in decodetree */
+ case 7: /* load/store byte immediate offset, in decodetree */
+ case 8: /* load/store halfword immediate offset, in decodetree */
+ case 9: /* load/store from stack, in decodetree */
goto illegal_op;
- case 6:
- /* load/store word immediate offset */
- rd = insn & 7;
- rn = (insn >> 3) & 7;
- addr = load_reg(s, rn);
- val = (insn >> 4) & 0x7c;
- tcg_gen_addi_i32(addr, addr, val);
-
- if (insn & (1 << 11)) {
- /* load */
- tmp = tcg_temp_new_i32();
- gen_aa32_ld32u(s, tmp, addr, get_mem_index(s));
- store_reg(s, rd, tmp);
- } else {
- /* store */
- tmp = load_reg(s, rd);
- gen_aa32_st32(s, tmp, addr, get_mem_index(s));
- tcg_temp_free_i32(tmp);
- }
- tcg_temp_free_i32(addr);
- break;
-
- case 7:
- /* load/store byte immediate offset */
- rd = insn & 7;
- rn = (insn >> 3) & 7;
- addr = load_reg(s, rn);
- val = (insn >> 6) & 0x1f;
- tcg_gen_addi_i32(addr, addr, val);
-
- if (insn & (1 << 11)) {
- /* load */
- tmp = tcg_temp_new_i32();
- gen_aa32_ld8u_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit);
- store_reg(s, rd, tmp);
- } else {
- /* store */
- tmp = load_reg(s, rd);
- gen_aa32_st8_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit);
- tcg_temp_free_i32(tmp);
- }
- tcg_temp_free_i32(addr);
- break;
-
- case 8:
- /* load/store halfword immediate offset */
- rd = insn & 7;
- rn = (insn >> 3) & 7;
- addr = load_reg(s, rn);
- val = (insn >> 5) & 0x3e;
- tcg_gen_addi_i32(addr, addr, val);
-
- if (insn & (1 << 11)) {
- /* load */
- tmp = tcg_temp_new_i32();
- gen_aa32_ld16u_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit);
- store_reg(s, rd, tmp);
- } else {
- /* store */
- tmp = load_reg(s, rd);
- gen_aa32_st16_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit);
- tcg_temp_free_i32(tmp);
- }
- tcg_temp_free_i32(addr);
- break;
-
- case 9:
- /* load/store from stack */
- rd = (insn >> 8) & 7;
- addr = load_reg(s, 13);
- val = (insn & 0xff) * 4;
- tcg_gen_addi_i32(addr, addr, val);
-
- if (insn & (1 << 11)) {
- /* load */
- tmp = tcg_temp_new_i32();
- gen_aa32_ld32u_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit);
- store_reg(s, rd, tmp);
- } else {
- /* store */
- tmp = load_reg(s, rd);
- gen_aa32_st32_iss(s, tmp, addr, get_mem_index(s), rd | ISSIs16Bit);
- tcg_temp_free_i32(tmp);
- }
- tcg_temp_free_i32(addr);
- break;
-
case 10:
/*
* 0b1010_xxxx_xxxx_xxxx