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| author | Peter Maydell <peter.maydell@linaro.org> | 2011-01-08 16:01:16 +0000 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2011-01-12 00:06:06 +0100 |
| commit | 0322b26e2d451c3c0fe5f54b1ff4fa18a17525aa (patch) | |
| tree | 492932c883d4b12a472caac5f3500f0ee6df92ee /target-arm | |
| parent | 4ca4502c93a7ebc358d4e3b5574574e1d84f64b2 (diff) | |
| download | qemu-0322b26e2d451c3c0fe5f54b1ff4fa18a17525aa.tar.gz | |
ARM: Fix decoding of VQSHL/VQSHLU immediate forms
Fix errors in the decoding of ARM VQSHL/VQSHLU immediate forms,
including using the new VQSHLU helper functions where appropriate.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-arm')
| -rw-r--r-- | target-arm/translate.c | 51 |
1 files changed, 36 insertions, 15 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c index 2ce82f3bbb..57664bc1f6 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -4652,14 +4652,22 @@ static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn) case 5: /* VSHL, VSLI */ gen_helper_neon_shl_u64(cpu_V0, cpu_V0, cpu_V1); break; - case 6: /* VQSHL */ - if (u) - gen_helper_neon_qshl_u64(cpu_V0, cpu_env, cpu_V0, cpu_V1); - else - gen_helper_neon_qshl_s64(cpu_V0, cpu_env, cpu_V0, cpu_V1); + case 6: /* VQSHLU */ + if (u) { + gen_helper_neon_qshlu_s64(cpu_V0, cpu_env, + cpu_V0, cpu_V1); + } else { + return 1; + } break; - case 7: /* VQSHLU */ - gen_helper_neon_qshl_u64(cpu_V0, cpu_env, cpu_V0, cpu_V1); + case 7: /* VQSHL */ + if (u) { + gen_helper_neon_qshl_u64(cpu_V0, cpu_env, + cpu_V0, cpu_V1); + } else { + gen_helper_neon_qshl_s64(cpu_V0, cpu_env, + cpu_V0, cpu_V1); + } break; } if (op == 1 || op == 3) { @@ -4698,17 +4706,30 @@ static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn) default: return 1; } break; - case 6: /* VQSHL */ - GEN_NEON_INTEGER_OP_ENV(qshl); - break; - case 7: /* VQSHLU */ + case 6: /* VQSHLU */ + if (!u) { + return 1; + } switch (size) { - case 0: gen_helper_neon_qshl_u8(tmp, cpu_env, tmp, tmp2); break; - case 1: gen_helper_neon_qshl_u16(tmp, cpu_env, tmp, tmp2); break; - case 2: gen_helper_neon_qshl_u32(tmp, cpu_env, tmp, tmp2); break; - default: return 1; + case 0: + gen_helper_neon_qshlu_s8(tmp, cpu_env, + tmp, tmp2); + break; + case 1: + gen_helper_neon_qshlu_s16(tmp, cpu_env, + tmp, tmp2); + break; + case 2: + gen_helper_neon_qshlu_s32(tmp, cpu_env, + tmp, tmp2); + break; + default: + return 1; } break; + case 7: /* VQSHL */ + GEN_NEON_INTEGER_OP_ENV(qshl); + break; } dead_tmp(tmp2); |