diff options
Diffstat (limited to 'target-mips/dsp_helper.c')
| -rw-r--r-- | target-mips/dsp_helper.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/target-mips/dsp_helper.c b/target-mips/dsp_helper.c index c7df595c9b..f975da08c4 100644 --- a/target-mips/dsp_helper.c +++ b/target-mips/dsp_helper.c @@ -269,18 +269,6 @@ static inline int32_t mipsdsp_sat32_acc_q31(int32_t acc, int32_t a, temp31 = (temp_sum >> 31) & 0x01; result = temp_sum & 0xFFFFFFFF; - /* FIXME - This sat function may wrong, because user manual wrote: - temp127..0 ← temp + ( (signA) || a31..0 - if ( temp32 ≠ temp31 ) then - if ( temp32 = 0 ) then - temp31..0 ← 0x80000000 - else - temp31..0 ← 0x7FFFFFFF - endif - DSPControlouflag:16+acc ← 1 - endif - */ if (temp32 != temp31) { if (temp32 == 0) { result = 0x7FFFFFFF; @@ -578,7 +566,7 @@ static inline int32_t mipsdsp_mul_q15_q15(int32_t ac, uint16_t a, uint16_t b, temp = 0x7FFFFFFF; set_DSPControl_overflow_flag(1, 16 + ac, env); } else { - temp = ((uint32_t)a * (uint32_t)b) << 1; + temp = ((int16_t)a * (int16_t)b) << 1; } return temp; |