static int em_bsf_c(struct x86_emulate_ctxt *ctxt)
{
	/* If src is zero, do not writeback, but update flags */
	if (ctxt->src.val == 0)
		ctxt->dst.type = OP_NONE;
	return fastop(ctxt, em_bsf);
}
static int em_bsf_c(struct x86_emulate_ctxt *ctxt)
{
	 
	if (ctxt->src.val == 0)
		ctxt->dst.type = OP_NONE;
	return fastop(ctxt, em_bsf);
}