_mm512_mulhrs_epi16
Classification
AVX-512, Arithmetic, CPUID Test: AVX512BW
Header File
immintrin.h
Instruction
VPMULHRSW zmm, zmm, zmm
Synopsis
 _mm512_mulhrs_epi16(__m512i a, __m512i b);
Description
Multiply packed signed 16-bit integers in "a" and "b", producing intermediate signed 32-bit integers. Truncate each intermediate integer to the 18 most significant bits, round by adding 1, and store bits [16:1] to "dst".
Operation
FOR j := 0 to 31
	i := j*16
	tmp[31:0] := ((SignExtend32(a[i+15:i]) * SignExtend32(b[i+15:i])) >> 14) + 1
	dst[i+15:i] := tmp[16:1]
ENDFOR
dst[MAX:512] := 0