movd - move doubleword

dest = source

The movd instruction moves the source value (second operand) to the destination. The purpose of this instruction is to move a data between memory, general purpose registers and floating point registers. Thus the destination must be one of those categories and the source must be a different category with one exception: movd can be used to move a value from one floating point register to another. The 32 bits are moved without conversion.

        movd    eax, xmm0       ; move 32 bits of xmm0 to eax
                                ; places 0 in top half of rax
        movd    [x], xmm0       ; move 32 bits of xmm0 to 32 bit variable x
        movd    xmm0, [y]       ; move 32 bit variable y to xmm0
                                ; places 0 in upper 3/4 of xmm0
        movd    xmm2, xmm1      ; move 32 bits of xmm1 to xmm2
                                ; places 0 in upper 3/4 of xmm2
        movd    [x], eax        ; move eax to 32 bit variable x

flags: none