}

	litWidth := paddedSize + 1
	if litWidth < 2 {
		litWidth = 2
	}
	e.writeByte(uint8(litWidth)) // LZW Minimum Code Size.

	bw := blockWriter{e: e}
	bw.setup()
	lzww := lzw.NewWriter(bw, lzw.LSB, litWidth)
	if dx := b.Dx(); dx == pm.Stride {
		_, e.err = lzww.Write(pm.Pix[:dx*b.Dy()])
		if e.err != nil {
			lzww.Close()
			return
		}
	} else {

var _ io.ByteReader = (*blockReader)(nil)

// lzwEncode returns an LZW encoding (with 2-bit literals) of in.
func lzwEncode(in []byte) []byte {
	b := &bytes.Buffer{}
	w := lzw.NewWriter(b, lzw.LSB, 2)
	if _, err := w.Write(in); err != nil {
		panic(err)
	}
	if err := w.Close(); err != nil {
		panic(err)
	}
	return b.Bytes()
}

func TestDecode(t *testing.T) {

{"Name":"BFI","Bits":"0|0|1|1|0|0|1|1|0|0|immr:6|imms:6|Rn:5|Rd:5","Arch":"32-bit variant","Syntax":"BFI <Wd>, <Wn>, #<lsb>, #<width>","Code":"","Alias":"This instruction is an alias of the BFM instruction."},
{"Name":"BFI","Bits":"1|0|1|1|0|0|1|1|0|1|immr:6|imms:6|Rn:5|Rd:5","Arch":"64-bit variant","Syntax":"BFI <Xd>, <Xn>, #<lsb>, #<width>","Code":"","Alias":"This instruction is an alias of the BFM instruction."},

	}
	if litWidth < 2 || litWidth > 8 {
		return fmt.Errorf("gif: pixel size in decode out of range: %d", litWidth)
	}
	// A wonderfully Go-like piece of magic.
	br := &blockReader{d: d}
	lzwr := lzw.NewReader(br, lzw.LSB, int(litWidth))
	defer lzwr.Close()
	if err = readFull(lzwr, m.Pix); err != nil {
		if err != io.ErrUnexpectedEOF {
			return fmt.Errorf("gif: reading image data: %v", err)
		}
		return errNotEnough
	}

	{0x0fe00070, 0x07c00010, 2, BFI_EQ, 0x1c04, instArgs{arg_R_12, arg_R_0, arg_imm5, arg_lsb_width}},             // BFI<c> <Rd>,<Rn>,#<lsb>,#<width> cond:4|0|1|1|1|1|1|0|msb:5|Rd:4|lsb:5|0|0|1|Rn:4

type Reader interface {
	io.ByteReader
	io.Reader
}

// bits holds the unprocessed bits that have been taken from the byte-stream.
// The n least significant bits of a form the unread bits, to be read in MSB to
// LSB order.
type bits struct {
	a uint32 // accumulator.
	m uint32 // mask. m==1<<(n-1) when n>0, with m==0 when n==0.
	n int32  // the number of unread bits in a.
}

type decoder struct {
	r    io.Reader

github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
github.com/xlab/treeprint v1.2.0 h1:HzHnuAF1plUN2zGlAFHbSQP2qJ0ZAD3XF5XD7OesXRQ=
github.com/xlab/treeprint v1.2.0/go.mod h1:gj5Gd3gPdKtR1ikdDK6fnFLdmIS0X30kTTuNd/WEJu0=
github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=

  apt-get update
  apt-get install -y --no-install-recommends \
    apt-transport-https \
    ca-certificates \
    socat \
    curl \
    gnupg2 \
    software-properties-common \
    lsb-release

  release=$(lsb_release -cs)

  # Add the Docker apt-repository (as we install containerd from there)
  # shellcheck disable=SC2086
  curl ${CURL_FLAGS} \
    --location \

	"internal/buildcfg"
	"log"
	"math"
	"math/bits"
	"strings"
)

// Test if this value can encoded as a mask for
// li -1, rx; rlic rx,rx,sh,mb.
// Masks can also extend from the msb and wrap to
// the lsb too. That is, the valid masks are 32 bit strings
// of the form: 0..01..10..0 or 1..10..01..1 or 1...1
func isPPC64DoublewordRotateMask(v64 int64) bool {
	// Isolate rightmost 1 (if none 0) and add.
	v := uint64(v64)

		{name: "BIC", argLength: 2, reg: gp21, asm: "BIC"},                    // arg0 &^ arg1
		{name: "BICconst", argLength: 1, reg: gp11, asm: "BIC", aux: "Int32"}, // arg0 &^ auxInt

		// bit extraction, AuxInt = Width<<8 | LSB
		{name: "BFX", argLength: 1, reg: gp11, asm: "BFX", aux: "Int32"},   // extract W bits from bit L in arg0, then signed extend