PADDSB
Usage: PADDSB dest,src Modifies flags: None
Performs an SIMD add of the packed signed integers from the 'src' and the 'dest', and stores the packed integer results in the 'dest' operand. These instructions can operate on either 64-bit or 128-bit operands.
Add Packed Signed Integers With Saturation
PADDSB mm1,mm2/m64 ; 0F EC /r [PENT,MMX]
PADDSW mm1,mm2/m64 ; 0F ED /r [PENT,MMX]
PADDSB xmm1,xmm2/m128 ; 66 0F EC /r [WILLAMETTE,SSE2]
PADDSW xmm1,xmm2/m128 ; 66 0F ED /r [WILLAMETTE,SSE2]
PADDSx performs packed addition of the two operands, storing the result in the destination (first) operand. PADDSB treats the operands as packed bytes, and adds each byte individually; and PADDSW treats the operands as packed words.
When an individual result is too large to fit in its destination, a saturated value is stored. The resulting value is the value with the largest magnitude of the same sign as the result which will fit in the available space.
EXAMPLE:
paddsb xmm1 Label