for _, tt := range zlibTests {
		in := bytes.NewReader(tt.compressed)
		zr, err := NewReaderDict(in, tt.dict)
		if err != nil {
			if err != tt.err {
				t.Errorf("%s: NewReader: %s", tt.desc, err)
			}
			continue
		}
		defer zr.Close()

		// Read and verify correctness of data.
		b.Reset()
		n, err := io.Copy(b, zr)
		if err != nil {
			if err != tt.err {

		pr.closer = &nopReadCloser{fn: cancel}
	case zstdType:
		// Set a max window of 64MB. More than reasonable.
		zr, err := zstd.NewReader(scannedReader, zstd.WithDecoderConcurrency(2), zstd.WithDecoderMaxWindow(64<<20))
		if err != nil {
			return nil, errInvalidCompression(err, compType)
		}
		r = zr
		pr.closer = zr.IOReadCloser()
	case lz4Type:
		r = lz4.NewReader(scannedReader)
	case s2Type:
		r = s2.NewReader(scannedReader)

	MOVD	a4+32(FP), R3
	MOVD	a5+40(FP), R4
	MOVD	a6+48(FP), R5
	SVC
	CMN	$4095, R0
	BCC	ok
	MOVD	$-1, R4
	MOVD	R4, r1+56(FP)
	MOVD	ZR, r2+64(FP)
	NEG	R0, R0
	MOVD	R0, errno+72(FP)
	RET
ok:
	MOVD	R0, r1+56(FP)
	MOVD	R1, r2+64(FP)
	MOVD	ZR, errno+72(FP)

	MOVD	$1, t0
	CMP	$0, t2
	CSEL	EQ, ZR, t0, t2
	CMP	$0, hlp1
	CSEL	EQ, ZR, t0, hlp1

	MOVD	p256const0<>(SB), const0
	MOVD	p256const1<>(SB), const1
	EOR	t2<<1, hlp1

	// Negate y2in based on sign
	LDP	2*16(b_ptr), (y0, y1)
	LDP	3*16(b_ptr), (y2, y3)
	MOVD	$-1, acc0

	SUBS	y0, acc0, acc0
	SBCS	y1, const0, acc1
	SBCS	y2, ZR, acc2
	SBCS	y3, const1, acc3
	SBC	$0, ZR, t0

{"Action":"output","Test":"TestAscii","Output":"    i can eat glass, and it doesn't hurt me. i can eat glass, and it doesn't hurt me.\n"}
{"Action":"output","Test":"TestAscii","Output":"    V PNA RNG TYNFF, NAQ VG QBRFA'G UHEG ZR. V PNA RNG TYNFF, NAQ VG QBRFA'G UHEG ZR.\n"}
{"Action":"pass","Test":"TestAscii"}
{"Action":"output","Output":"PASS\n"}

	case "arm":
		binary.LittleEndian.PutUint32(ill[0:4], 0xe3a00000) // MOVW $0, R0
		binary.LittleEndian.PutUint32(ill[4:8], 0xe5800000) // MOVW R0, (R0)
	case "arm64":
		binary.LittleEndian.PutUint32(ill, 0xf90003ff) // MOVD ZR, (ZR)
	case "ppc64":
		binary.BigEndian.PutUint32(ill, 0xf8000000) // MOVD R0, (R0)
	case "ppc64le":
		binary.LittleEndian.PutUint32(ill, 0xf8000000) // MOVD R0, (R0)
	case "mips", "mips64":

		{"\xf2H\xcd", "He"},
		{"\xf2H͙0a\u0084\t", "Hel\x90\x90\x90\x90\x90"},
		{"\xf2H͙0a\u0084\t\x00", "Hel\x90\x90\x90\x90\x90"},
	}

	for i, v := range vectors {
		r := strings.NewReader(v.input)
		zr := NewReader(r)
		b, err := io.ReadAll(zr)
		if err != io.ErrUnexpectedEOF {
			t.Errorf("test %d, error mismatch: got %v, want io.ErrUnexpectedEOF", i, err)
		}
		if string(b) != v.output {

	fmt.Fprintln(w, "\tRET")
}

func zeroARM64(w io.Writer) {
	// ZR: always zero
	// R20: ptr to memory to be zeroed
	// On return, R20 points to the last zeroed dword.
	fmt.Fprintln(w, "TEXT runtime·duffzero<ABIInternal>(SB), NOSPLIT|NOFRAME, $0-0")
	for i := 0; i < 63; i++ {
		fmt.Fprintln(w, "\tSTP.P\t(ZR, ZR), 16(R20)")
	}
	fmt.Fprintln(w, "\tSTP\t(ZR, ZR), (R20)")
	fmt.Fprintln(w, "\tRET")
}

			f, err := os.Open(file)
			if err != nil {
				return err
			}
			if st, err := f.Stat(); err == nil {
				sz = st.Size()
			}
			defer f.Close()
			zr, err := zip.NewReader(f, sz)
			if err != nil {
				return err
			}
			for _, file := range zr.File {
				if !file.FileInfo().IsDir() && strings.HasSuffix(file.Name, ".healing.bin") {
					r, err := file.Open()
					if err != nil {
						return err
					}

	return r
}

// ColorModel implements the [Image] interface.
func (r Rectangle) ColorModel() color.Model {
	return color.Alpha16Model
}

// ZR is the zero [Rectangle].
//
// Deprecated: Use a literal [image.Rectangle] instead.
var ZR Rectangle

// Rect is shorthand for [Rectangle]{Pt(x0, y0), [Pt](x1, y1)}. The returned
// rectangle has minimum and maximum coordinates swapped if necessary so that