_mm_mulhrs_pi16
Classification
SSE_ALL, Arithmetic, CPUID Test: SSSE3
Header File
tmmintrin.h
Instruction
PMULHRSW mm, mm
Synopsis
 _mm_mulhrs_pi16(__m64 a, __m64 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 3
	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