aesenc_opd2 257 arch/x86/include/asm/inst.h XMM_NUM aesenc_opd2 \xmm2 aesenc_opd2 259 arch/x86/include/asm/inst.h PFX_REX aesenc_opd1 aesenc_opd2 aesenc_opd2 261 arch/x86/include/asm/inst.h MODRM 0xc0 aesenc_opd1 aesenc_opd2