## movaps - move aligned packed singles

    dest = source

The movaps instruction moves 4 single precision floating point values (32 bits each) from the source value (second operand) to the destination. The source and the destination can be an XMM register or a memory location. You can not use 2 memory addresses. The vmovaps instruction allows moving 8 floats between YMM registers and memory.

This version requires that any memory address used be aligned on a 16 byte boundary (bits 0:3 all 0). Using an unaligned address generates a general protection fault. In the original designs movaps was faster than than movups (move unaligned). When in doubt use movups instead.

movaps moves the values without inspection or conversion.

An XMM register is 128 bits total, while CPUs supporting AVX instructions have an additional 128 bits in each register accessible as YMM registers.

            movaps   xmm1, xmm2     ; moves 4 floats from xmm2 to xmm1
                                    ; leaves the rest of xmm1 unchanged
            movaps   xmm2, [x]      ; moves 4 floats from variable x to xmm2
                                    ; leaves the rest of xmm2 alone
            movaps   [y], xmm0      ; moves 4 floats from xmm0 to variable y
                                    ; moves precisely 128 bits
            vmovaps   xmm1, xmm2    ; moves 4 floats from xmm2 to xmm1
                                    ; leaves the rest of xmm1 unchanged
            vmovaps   ymm1, ymm2    ; moves 8 floats from ymm2 to ymm1
            vmovaps   ymm2, [x]     ; moves 8 floats from variable x to ymm2
            vmovaps   [y], ymm0     ; moves 8 floats from ymm0 to variable y

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