SLW	$4, R3, R6              // eb63000400df
	SLW	R2, R3, R6              // eb63200000df
	SLD	$4, R3, R6              // eb630004000d
	SLD	R2, R3, R6              // eb632000000d
	SRAD	$4, R5, R8              // eb850004000a
	SRAD	R3, R5, R8              // eb853000000a
	SRAW	$4, R5, R8              // eb85000400dc
	SRAW	R3, R5, R8              // eb85300000dc
	RLL	R1, R2, R3              // eb321000001d

the use of cgo, and to 0 to disable it. The go tool will set the
build constraint "cgo" if cgo is enabled. The special import "C"
implies the "cgo" build constraint, as though the file also said
"//go:build cgo".  Therefore, if cgo is disabled, files that import
"C" will not be built by the go tool. (For more about build constraints
see https://golang.org/pkg/go/build/#hdr-Build_Constraints).

</p>

<p>
Implementation restriction: Although numeric constants have arbitrary
precision in the language, a compiler may implement them using an
internal representation with limited precision.  That said, every
implementation must:
</p>

<ul>
	<li>Represent integer constants with at least 256 bits.</li>

	<li>Represent floating-point constants, including the parts of

pkg syscall (windows-386), method (*RawSockaddrAny) Sockaddr() (Sockaddr, error)
pkg syscall (windows-386), method (*SID) Copy() (*SID, error)
pkg syscall (windows-386), method (*SID) Len() int
pkg syscall (windows-386), method (*SID) LookupAccount(string) (string, string, uint32, error)
pkg syscall (windows-386), method (*SID) String() (string, error)
pkg syscall (windows-386), method (*Timeval) Nanoseconds() int64

	ADC	$0, R1                           // 21001f9a
	ADCW	$0, R1                           // 21001f1a
	ADCS	$0, R1                           // 21001fba
	ADCSW	$0, R1                           // 21001f3a

// fp/simd instructions.
	VADDP	V1.B16, V2.B16, V3.B16          // 43bc214e
	VADDP	V1.S4, V2.S4, V3.S4             // 43bca14e
	VADDP	V1.D2, V2.D2, V3.D2             // 43bce14e
	VAND	V21.B8, V12.B8, V3.B8           // 831d350e

	SRAWCC R3, R4                   // 7c841e31
	SRD $16, R3, R4                 // 78648402
	SRD R3, R4, R5                  // 7c851c36
	SRDCC R3, R4                    // 7c841c37
	SRAD $16, R3, R4                // 7c648674
	SRAD R3, R4, R5                 // 7c851e34
	SRDCC R3, R4                    // 7c841c37
	ROTLW $16, R3, R4               // 5464803e
	ROTLW R3, R4, R5                // 5c85183e

</p>

<p>
Implementation restriction: Although numeric constants have arbitrary
precision in the language, a compiler may implement them using an
internal representation with limited precision.  That said, every
implementation must:
</p>

<ul>
	<li>Represent integer constants with at least 256 bits.</li>

	<li>Represent floating-point constants, including the parts of

			a.Index = num
		case "D":
			if !isIndex {
				return nil
			}
			a.Reg = arm64.REG_ELEM + (reg & 31) + ((arm64.ARNG_D & 15) << 5)
			a.Index = num
		default:
			return errors.New("unsupported simd register extension type: " + ext)
		}
	} else {
		return errors.New("invalid register and extension combination")
	}
	return nil
}

func (w *Writer) CreateHeader(fh *FileHeader) (io.Writer, error) {
	if err := w.prepare(fh); err != nil {
		return nil, err
	}

	// The ZIP format has a sad state of affairs regarding character encoding.
	// Officially, the name and comment fields are supposed to be encoded
	// in CP-437 (which is mostly compatible with ASCII), unless the UTF-8

	}

	return ok
}

// aliasReplacer applies type aliases to earlier API files,
// to avoid misleading negative results.
// This makes all the references to os.FileInfo in go1.txt
// be read as if they said fs.FileInfo, since os.FileInfo is now an alias.
// If there are many of these, we could do a more general solution,
// but for now the replacer is fine.
var aliasReplacer = strings.NewReplacer(
	"os.FileInfo", "fs.FileInfo",