PMAXUB
Usage: PMAXUB dest,src Modifies flags: None
Performs an SIMD compare of the packed unsigned byte integers in the 'dest' and the 'src' and returns the maximum value for each pair of byte integers to the 'dest' operand.
Packed Unsigned Integer Byte Maximum
PMAXUB mm1,mm2/m64 ; 0F DE /r [KATMAI,MMX]
PMAXUB xmm1,xmm2/m128 ; 66 0F DE /r [WILLAMETTE,SSE2]
PMAXUB compares each pair of bytes in the two source operands, and for each pair it stores the maximum value in the destination register.
The 'src' operand can be an MMX technology register or a 64-bit memory location, or it can be an XMM register or a 128-bit memory location. The 'dest' operand can be an MMX technology register or an XMM register.
EXAMPLE:
pmaxub xmm1 Label