Unified at bottom, and separated by PSB.

TEMP[15:8]; DEST[15:8] := TEMP[55:48]; MOVBE—Move Data After Swapping Bytes Vol. 2B 4-343 VPMINUW (VEX.128 Encoded Version) CMP0 := SRC1[63:0] DEST[127:64] := SRC1[127:64] ELSE DEST [63:0] := SRC2[63:0] ELSE TMP_SRC2[i+63:i] := SRC2[63:0]; ELSE CMP := SRC1[i+63:i] + SRC2[i+63:i] FI; ELSE IF.