BIC	$0x22220000, R3, R4                 // BIC	$572653568, R3, R4              // 5b44a4d264003b8a
	ORN	$0x22220000, R3, R4                 // ORN	$572653568, R3, R4              // 5b44a4d264003baa
	EON	$0x22220000, R3, R4                 // EON	$572653568, R3, R4              // 5b44a4d264003bca
	ANDS	$0x22220000, R3, R4                 // ANDS	$572653568, R3, R4              // 5b44a4d264001bea

	case lex.LSH:
		op = 0
	case lex.RSH:
		op = 1
	case lex.ARR:
		op = 2
	case lex.ROT:
		// following instructions on ARM64 support rotate right
		// AND, ANDS, TST, BIC, BICS, EON, EOR, ORR, MVN, ORN
		op = 3
	}
	tok := p.next()
	str := tok.String()
	var count int16
	switch tok.ScanToken {
	case scanner.Ident:
		if p.arch.Family == sys.ARM64 {