comment: "in the 世界",
			flags:   0x808,
		},
		{
			name:    "the replacement rune is �",
			comment: "the replacement rune is �",
			flags:   0x808,
		},
		{
			// Name is Japanese encoded in Shift JIS.
			name:    "\x93\xfa\x96{\x8c\xea.txt",
			comment: "in the 世界",
			flags:   0x008, // UTF-8 must not be set
		},
	}

	// write a zip file
	buf := new(bytes.Buffer)
	w := NewWriter(buf)

	VXORVX		X11, V2, V0, V3			// d7c1252c
	VXORVI		$15, V2, V3			// d7b1272e
	VXORVI		$15, V2, V0, V3			// d7b1272c
	VNOTV		V2, V3				// d7b12f2e
	VNOTV		V2, V0, V3			// d7b12f2c

	// 31.11.6: Vector Single-Width Shift Instructions
	VSLLVV		V1, V2, V3			// d7812096
	VSLLVV		V1, V2, V0, V3			// d7812094
	VSLLVX		X11, V2, V3			// d7c12596
	VSLLVX		X11, V2, V0, V3			// d7c12594
	VSLLVI		$15, V2, V3			// d7b12796

		// If we've already hit EOF or an I/O error, we are done.
		if s.err != nil {
			// Shut it down.
			s.start = 0
			s.end = 0
			return false
		}
		// Must read more data.
		// First, shift data to beginning of buffer if there's lots of empty space
		// or space is needed.
		if s.start > 0 && (s.end == len(s.buf) || s.start > len(s.buf)/2) {
			copy(s.buf, s.buf[s.start:s.end])
			s.end -= s.start

	// and accept the same constants.
	MOVW $2147483648, R5            // 64058000
	MOVWZ $-2147483648, R5          // 3ca08000

	// TODO: These are preprocessed by the assembler into MOVD $const>>shift, R5; SLD $shift, R5.
	//       This only captures the MOVD. Should the SLD be appended to the encoding by the test?
	// Hex constant 0x20004000000
	MOVD $2199090364416, R5         // 60058001
	// Hex constant 0xFFFFFE0004000000

		// local character encoding. Most encoding are compatible with a large
		// subset of CP-437, which itself is ASCII-like.
		//
		// Forbid 0x7e and 0x5c since EUC-KR and Shift-JIS replace those
		// characters with localized currency and overline characters.
		if r < 0x20 || r > 0x7d || r == 0x5c {
			if !utf8.ValidRune(r) || (r == utf8.RuneError && size == 1) {
				return false, false
			}

	ORW	(R1), R2              // 56201000
	ORW	-1(R1), R2            // e3201fffff56
	XOR	(R1), R2              // e32010000082
	XORW	(R1), R2              // 57201000
	XORW	-1(R1), R2            // e3201fffff57

	// shift and rotate instructions
	SRD	$4, R4, R7              // eb740004000c
	SRD	R1, R4, R7              // eb741000000c
	SRW	$4, R4, R7              // eb74000400de
	SRW	R1, R4, R7              // eb74100000de

		// Some ZIP writers use UTF-8 encoding without setting the UTF-8 flag.
		// Since it is impossible to always distinguish valid UTF-8 from some
		// other encoding (e.g., GBK or Shift-JIS), we trust the flag.
		f.NonUTF8 = f.Flags&0x800 == 0
	}

	needUSize := f.UncompressedSize == ^uint32(0)
	needCSize := f.CompressedSize == ^uint32(0)
	needHeaderOffset := f.headerOffset == int64(^uint32(0))

pkg go/constant, func MakeUint64(uint64) Value
pkg go/constant, func MakeUnknown() Value
pkg go/constant, func Num(Value) Value
pkg go/constant, func Real(Value) Value
pkg go/constant, func Shift(Value, token.Token, uint) Value
pkg go/constant, func Sign(Value) int
pkg go/constant, func StringVal(Value) string
pkg go/constant, func Uint64Val(Value) (uint64, bool)

				Content: []byte{},
				Mode:    0644,
				// Name is valid UTF-8, but format does not have UTF-8 flag set.
				// We don't do UTF-8 detection for multi-byte runes due to
				// false-positives with other encodings (e.g., Shift-JIS).
				// Format says encoding is not UTF-8, so we trust it.
				NonUTF8:  true,
				Modified: time.Date(2017, 11, 6, 13, 9, 27, 0, timeZone(-8*time.Hour)),
			},
		},
	},
	{
		Name: "utf8-osx.zip",

t.Run(fmt.Sprint(shift-1), func(t *testing.T) { testShift(t, shift-1) }) t.Run(fmt.Sprint(shift), func(t *testing.T) { testShift(t, shift) }) t.Run(fmt.Sprint(shift+1), func(t *testing.T) { testShift(t, shift+1) }) } } func natBytes(n *Nat) []byte { return n.Bytes(maxModulus(uint(len(n.limbs)))) } func natFromBytes(b []byte) *Nat { // Must not use Nat.SetBytes as it's used in TestSetBytes. bb := new(big.Int).SetBytes(b) return NewNat().setBig(bb) } func modulusFromBytes(b []byte) *Modulus { bb := new(big.Int).SetBytes(b)...