ntfsExtraID        = 0x000a // NTFS
	unixExtraID        = 0x000d // UNIX
	extTimeExtraID     = 0x5455 // Extended timestamp
	infoZipUnixExtraID = 0x5855 // Info-ZIP Unix extension
)

// FileHeader describes a file within a ZIP file.
// See the [ZIP specification] for details.
//
// [ZIP specification]: https://support.pkware.com/pkzip/appnote
type FileHeader struct {

	// an old zip32 file that was sharding inputs into the largest chunks
	// possible (or is just malicious; search the web for 42.zip).
	// If needUSize is true still, it means we didn't see a zip64 extension.
	// As long as the compressed size is not also 2³²-1 (implausible)
	// and the header is not also 2³²-1 (equally implausible),
	// accept the uncompressed size 2³²-1 as valid.

	BNEZ	X5, 2(PC)				// 63940200

	// Set pseudo-instructions
	SEQZ	X15, X15				// 93b71700
	SNEZ	X15, X15				// b337f000

	// F extension
	FABSS	F0, F1					// d3200020
	FNEGS	F0, F1					// d3100020
	FNES	F0, F1, X7				// d3a300a093c31300

	// D extension
	FABSD	F0, F1					// d3200022
	FNEGD	F0, F1					// d3100022
	FNED	F0, F1, X5				// d3a200a293c21200
	FLTD	F0, F1, X5				// d39200a2

			p.errorf(err.Error())
		}
		return off
	} else {
		return int64((r1 & 15) | op<<5 | count)
	}
}

// registerExtension parses a register with extension or arrangement.
// There is known to be a register (current token) and an extension operator (peeked token).
func (p *Parser) registerExtension(a *obj.Addr, name string, prefix rune) {
	if prefix != 0 {

pkg crypto/x509, method (*RevocationList) CheckSignatureFrom(*Certificate) error #50674
pkg crypto/x509, type RevocationList struct, AuthorityKeyId []uint8 #50674
pkg crypto/x509, type RevocationList struct, Extensions []pkix.Extension #50674
pkg crypto/x509, type RevocationList struct, Issuer pkix.Name #50674
pkg crypto/x509, type RevocationList struct, Raw []uint8 #50674
pkg crypto/x509, type RevocationList struct, RawIssuer []uint8 #50674

pkg syscall (windows-386), const REG_SZ = 1
pkg syscall (windows-386), const SIGBUS = 7
pkg syscall (windows-386), const SIO_GET_EXTENSION_FUNCTION_POINTER = 3355443206
pkg syscall (windows-386), const SIO_GET_EXTENSION_FUNCTION_POINTER ideal-int
pkg syscall (windows-386), const SIO_GET_INTERFACE_LIST = 1074033791
pkg syscall (windows-386), const SOL_SOCKET = 65535

pkg crypto/tls, type SessionState struct, Extra [][]uint8 #60539
pkg crypto/x509, type RevocationListEntry struct #53573
pkg crypto/x509, type RevocationListEntry struct, Extensions []pkix.Extension #53573
pkg crypto/x509, type RevocationListEntry struct, ExtraExtensions []pkix.Extension #53573
pkg crypto/x509, type RevocationListEntry struct, Raw []uint8 #53573
pkg crypto/x509, type RevocationListEntry struct, ReasonCode int #53573

			return errors.New("unsupported general register extension type: " + ext)

		}
	} else if reg <= arm64.REG_V31 && reg >= arm64.REG_V0 {
		switch ext {
		case "B8":
			if isIndex {
				return errors.New("invalid register extension")
			}
			a.Reg = arm64.REG_ARNG + (reg & 31) + ((arm64.ARNG_8B & 15) << 5)
		case "B16":
			if isIndex {
				return errors.New("invalid register extension")
			}

	stdin := bufio.NewScanner(os.Stdin)
	stdout := bufio.NewWriter(os.Stdout)

	for stdin.Scan() {
		p := stdin.Text()
		if strings.Contains(p, ":") {
			// Reverse translate file:line to pc.
			// This was an extension in the old C version of 'go tool addr2line'
			// and is probably not used by anyone, but recognize the syntax.
			// We don't have an implementation.
			fmt.Fprintf(stdout, "!reverse translation not implemented\n")
			continue

pkg crypto/x509, func CreateRevocationList(io.Reader, *RevocationList, *Certificate, crypto.Signer) ([]uint8, error)
pkg crypto/x509, type RevocationList struct
pkg crypto/x509, type RevocationList struct, ExtraExtensions []pkix.Extension
pkg crypto/x509, type RevocationList struct, NextUpdate time.Time
pkg crypto/x509, type RevocationList struct, Number *big.Int
pkg crypto/x509, type RevocationList struct, RevokedCertificates []pkix.RevokedCertificate