diff options
Diffstat (limited to 'target-mips/dsp_helper.c')
-rw-r--r-- | target-mips/dsp_helper.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/target-mips/dsp_helper.c b/target-mips/dsp_helper.c index fda5f0460b..14daf91950 100644 --- a/target-mips/dsp_helper.c +++ b/target-mips/dsp_helper.c @@ -3814,17 +3814,18 @@ void helper_shilo(target_ulong ac, target_ulong rs, CPUMIPSState *env) rs5_0 = rs & 0x3F; rs5_0 = (int8_t)(rs5_0 << 2) >> 2; - rs5_0 = MIPSDSP_ABS(rs5_0); + + if (unlikely(rs5_0 == 0)) { + return; + } + acc = (((uint64_t)env->active_tc.HI[ac] << 32) & MIPSDSP_LHI) | ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO); - if (rs5_0 == 0) { - temp = acc; + + if (rs5_0 > 0) { + temp = acc >> rs5_0; } else { - if (rs5_0 > 0) { - temp = acc >> rs5_0; - } else { - temp = acc << rs5_0; - } + temp = acc << -rs5_0; } env->active_tc.HI[ac] = (target_ulong)(int32_t)((temp & MIPSDSP_LHI) >> 32); |