_m_psubb
Classification
MMX, Arithmetic, CPUID Test: MMX
Header File
Instruction
PSUBB mm, mm
Synopsis
_m_psubb(__m64 a, __m64 b);
Description
Subtract packed 8-bit integers in "b" from packed 8-bit integers in "a", and store the results in "dst".
Operation
FOR j := 0 to 7
i := j*8
dst[i+7:i] := a[i+7:i] - b[i+7:i]
ENDFOR