diff options
Diffstat (limited to 'target-mips/translate.c')
| -rw-r--r-- | target-mips/translate.c | 32 |
1 files changed, 4 insertions, 28 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index b92a844..8175da0 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -3928,7 +3928,6 @@ static void gen_bitops (DisasContext *ctx, uint32_t opc, int rt, { TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); - target_ulong mask; gen_load_gpr(t1, rs); switch (opc) { @@ -3961,45 +3960,22 @@ static void gen_bitops (DisasContext *ctx, uint32_t opc, int rt, case OPC_INS: if (lsb > msb) goto fail; - mask = ((msb - lsb + 1 < 32) ? ((1 << (msb - lsb + 1)) - 1) : ~0) << lsb; gen_load_gpr(t0, rt); - tcg_gen_andi_tl(t0, t0, ~mask); - tcg_gen_shli_tl(t1, t1, lsb); - tcg_gen_andi_tl(t1, t1, mask); - tcg_gen_or_tl(t0, t0, t1); + tcg_gen_deposit_tl(t0, t0, t1, lsb, msb - lsb + 1); tcg_gen_ext32s_tl(t0, t0); break; #if defined(TARGET_MIPS64) case OPC_DINSM: - if (lsb > msb) - goto fail; - mask = ((msb - lsb + 1 + 32 < 64) ? ((1ULL << (msb - lsb + 1 + 32)) - 1) : ~0ULL) << lsb; gen_load_gpr(t0, rt); - tcg_gen_andi_tl(t0, t0, ~mask); - tcg_gen_shli_tl(t1, t1, lsb); - tcg_gen_andi_tl(t1, t1, mask); - tcg_gen_or_tl(t0, t0, t1); + tcg_gen_deposit_tl(t0, t0, t1, lsb, msb + 32 - lsb + 1); break; case OPC_DINSU: - if (lsb > msb) - goto fail; - mask = ((1ULL << (msb - lsb + 1)) - 1) << (lsb + 32); gen_load_gpr(t0, rt); - tcg_gen_andi_tl(t0, t0, ~mask); - tcg_gen_shli_tl(t1, t1, lsb + 32); - tcg_gen_andi_tl(t1, t1, mask); - tcg_gen_or_tl(t0, t0, t1); + tcg_gen_deposit_tl(t0, t0, t1, lsb + 32, msb - lsb + 1); break; case OPC_DINS: - if (lsb > msb) - goto fail; gen_load_gpr(t0, rt); - mask = ((1ULL << (msb - lsb + 1)) - 1) << lsb; - gen_load_gpr(t0, rt); - tcg_gen_andi_tl(t0, t0, ~mask); - tcg_gen_shli_tl(t1, t1, lsb); - tcg_gen_andi_tl(t1, t1, mask); - tcg_gen_or_tl(t0, t0, t1); + tcg_gen_deposit_tl(t0, t0, t1, lsb, msb - lsb + 1); break; #endif default: |
