_m_psubw
Classification
MMX, Arithmetic, CPUID Test: MMX
Header File
mmintrin.h
Instruction
PSUBW mm, mm
Synopsis
 _m_psubw(__m64 a, __m64 b);
Description
Subtract packed 16-bit integers in "b" from packed 16-bit integers in "a", and store the results in "dst".
Operation
FOR j := 0 to 3
	i := j*16
	dst[i+15:i] := a[i+15:i] - b[i+15:i]
ENDFOR