[x86] Support MMX

[radare]

    __asm (xorps xmm0, xmm0);
    __asm (movaps xmmword [local_40h], xmm0);
    __asm (movaps xmmword [local_50h], xmm0);
    __asm (movaps xmmword [local_60h], xmm0);
    __asm (movaps xmmword [local_70h], xmm0);
    __asm (movaps xmmword [local_80h], xmm0);
    __asm (movaps xmmword [local_90h], xmm0);
    __asm (movaps xmmword [local_a0h], xmm0);
    __asm (movaps xmmword [local_b0h], xmm0);