A.5.159 MOVD: Move Doubleword to/from MMX Register
MOVD mm,r/m32 ; 0F 6E /r [PENT,MMX]
MOVD r/m32,mm ; 0F 7E /r [PENT,MMX]
MOVD xmm,r/m32 ; 66 0F 6E /r [WILLAMETTE,SSE2]
MOVD r/m32,xmm ; 66 0F 7E /r [WILLAMETTE,SSE2]
MOVD copies 32 bits from its source (second) operand into its
destination (first) operand. When the destination is a 64-bit MMX
register or a 128-bit XMM register, the input value is zero-extended to
fill the destination register.