On 15/03/2019 10:41, Jan Beulich wrote:
> @@ -6681,6 +6681,12 @@ x86_emulate(
> case X86EMUL_OPC_EVEX_66(0x0f, 0xf6): /* vpsadbw
> [xyz]mm/mem,[xyz]mm,[xyz]mm */
> generate_exception_if(evex.opmsk, EXC_UD);
> /* fall through */
> + case X86EMUL_OPC_EVEX_66(0x0f, 0x60): /* vpunpcklbw
> [xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
> + case X86EMUL_OPC_EVEX_66(0x0f, 0x61): /* vpunpcklwd
> [xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
> + case X86EMUL_OPC_EVEX_66(0x0f, 0x68): /* vpunpckhbw
> [xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
> + case X86EMUL_OPC_EVEX_66(0x0f, 0x69): /* vpunpckhwd
> [xyz]mm/mem,[xyz]mm,[xyz]mm{k} */
> + op_bytes = 16 << evex.lr;
> + /* fall through */
If this setting of op_bytes is safe to do for vpsadbw, how does the
emulation currently work?
~Andrew
> case X86EMUL_OPC_EVEX_66(0x0f, 0xd1): /* vpsrlw
> xmm/m128,[xyz]mm,[xyz]mm{k} */
> case X86EMUL_OPC_EVEX_66(0x0f, 0xe1): /* vpsraw
> xmm/m128,[xyz]mm,[xyz]mm{k} */
> case X86EMUL_OPC_EVEX_66(0x0f, 0xf1): /* vpsllw
> xmm/m128,[xyz]mm,[xyz]mm{k} */
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