Revision 934814f1 target-arm/translate.c
| b/target-arm/translate.c | ||
|---|---|---|
| 3397 | 3397 |
VFP_DREG_D(rd, insn); |
| 3398 | 3398 |
else |
| 3399 | 3399 |
rd = VFP_SREG_D(insn); |
| 3400 |
if (s->thumb && rn == 15) {
|
|
| 3401 |
addr = tcg_temp_new_i32(); |
|
| 3402 |
tcg_gen_movi_i32(addr, s->pc & ~2); |
|
| 3403 |
} else {
|
|
| 3404 |
addr = load_reg(s, rn); |
|
| 3405 |
} |
|
| 3406 | 3400 |
if ((insn & 0x01200000) == 0x01000000) {
|
| 3407 | 3401 |
/* Single load/store */ |
| 3408 | 3402 |
offset = (insn & 0xff) << 2; |
| 3409 | 3403 |
if ((insn & (1 << 23)) == 0) |
| 3410 | 3404 |
offset = -offset; |
| 3405 |
if (s->thumb && rn == 15) {
|
|
| 3406 |
/* This is actually UNPREDICTABLE */ |
|
| 3407 |
addr = tcg_temp_new_i32(); |
|
| 3408 |
tcg_gen_movi_i32(addr, s->pc & ~2); |
|
| 3409 |
} else {
|
|
| 3410 |
addr = load_reg(s, rn); |
|
| 3411 |
} |
|
| 3411 | 3412 |
tcg_gen_addi_i32(addr, addr, offset); |
| 3412 | 3413 |
if (insn & (1 << 20)) {
|
| 3413 | 3414 |
gen_vfp_ld(s, dp, addr); |
| ... | ... | |
| 3419 | 3420 |
tcg_temp_free_i32(addr); |
| 3420 | 3421 |
} else {
|
| 3421 | 3422 |
/* load/store multiple */ |
| 3423 |
int w = insn & (1 << 21); |
|
| 3422 | 3424 |
if (dp) |
| 3423 | 3425 |
n = (insn >> 1) & 0x7f; |
| 3424 | 3426 |
else |
| 3425 | 3427 |
n = insn & 0xff; |
| 3426 | 3428 |
|
| 3429 |
if (w && !(((insn >> 23) ^ (insn >> 24)) & 1)) {
|
|
| 3430 |
/* P == U , W == 1 => UNDEF */ |
|
| 3431 |
return 1; |
|
| 3432 |
} |
|
| 3433 |
if (n == 0 || (rd + n) > 32 || (dp && n > 16)) {
|
|
| 3434 |
/* UNPREDICTABLE cases for bad immediates: we choose to |
|
| 3435 |
* UNDEF to avoid generating huge numbers of TCG ops |
|
| 3436 |
*/ |
|
| 3437 |
return 1; |
|
| 3438 |
} |
|
| 3439 |
if (rn == 15 && w) {
|
|
| 3440 |
/* writeback to PC is UNPREDICTABLE, we choose to UNDEF */ |
|
| 3441 |
return 1; |
|
| 3442 |
} |
|
| 3443 |
|
|
| 3444 |
if (s->thumb && rn == 15) {
|
|
| 3445 |
/* This is actually UNPREDICTABLE */ |
|
| 3446 |
addr = tcg_temp_new_i32(); |
|
| 3447 |
tcg_gen_movi_i32(addr, s->pc & ~2); |
|
| 3448 |
} else {
|
|
| 3449 |
addr = load_reg(s, rn); |
|
| 3450 |
} |
|
| 3427 | 3451 |
if (insn & (1 << 24)) /* pre-decrement */ |
| 3428 | 3452 |
tcg_gen_addi_i32(addr, addr, -((insn & 0xff) << 2)); |
| 3429 | 3453 |
|
| ... | ... | |
| 3443 | 3467 |
} |
| 3444 | 3468 |
tcg_gen_addi_i32(addr, addr, offset); |
| 3445 | 3469 |
} |
| 3446 |
if (insn & (1 << 21)) {
|
|
| 3470 |
if (w) {
|
|
| 3447 | 3471 |
/* writeback */ |
| 3448 | 3472 |
if (insn & (1 << 24)) |
| 3449 | 3473 |
offset = -offset * n; |
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