pkg net/netip, method (*Addr) UnmarshalBinary([]uint8) error
pkg net/netip, method (*Addr) UnmarshalText([]uint8) error
pkg net/netip, method (*AddrPort) UnmarshalBinary([]uint8) error
pkg net/netip, method (*AddrPort) UnmarshalText([]uint8) error
pkg net/netip, method (*Prefix) UnmarshalBinary([]uint8) error
pkg net/netip, method (*Prefix) UnmarshalText([]uint8) error
pkg net/netip, method (Addr) AppendTo([]uint8) []uint8

	Family    uint8
	Prefixlen uint8
	Flags     uint8
	Scope     uint8
	Index     uint32
}

type RtMsg struct {
	Family   uint8
	Dst_len  uint8
	Src_len  uint8
	Tos      uint8
	Table    uint8
	Protocol uint8
	Scope    uint8
	Type     uint8
	Flags    uint32
}

type RtNexthop struct {
	Len     uint16
	Flags   uint8
	Hops    uint8
	Ifindex int32
}

const (

		r = (r * 0xffff) / a
		g = (g * 0xffff) / a
		b = (b * 0xffff) / a
	}

	y, u, v := RGBToYCbCr(uint8(r>>8), uint8(g>>8), uint8(b>>8))
	return NYCbCrA{YCbCr{Y: y, Cb: u, Cr: v}, uint8(a >> 8)}
}

// RGBToCMYK converts an RGB triple to a CMYK quadruple.
func RGBToCMYK(r, g, b uint8) (uint8, uint8, uint8, uint8) {
	rr := uint32(r)
	gg := uint32(g)
	bb := uint32(b)
	w := rr
	if w < gg {
		w = gg
	}

				src1.SetNRGBA(x, y, color.NRGBA{
					uint8(13 * x % 0x100),
					uint8(11 * y % 0x100),
					uint8((11*x + 13*y) % 0x100),
					0x7f,
				})
			}
		}
		src = src1
	case color.YCbCrModel:
		yy := make([]uint8, srcw*srch)
		cb := make([]uint8, srcw*srch)
		cr := make([]uint8, srcw*srch)
		for i := range yy {
			yy[i] = uint8(3 * i % 0x100)
			cb[i] = uint8(5 * i % 0x100)
			cr[i] = uint8(7 * i % 0x100)

	}
	return
}

func pop8(x uint8) (n uint8) {
	for x != 0 {
		x &= x - 1
		n++
	}
	return
}

func rev8(x uint8) (r uint8) {
	for i := 8; i > 0; i-- {
		r = r<<1 | x&1
		x >>= 1
	}
	return
}

func len8(x uint8) (n uint8) {
	for x != 0 {
		x >>= 1
		n++
	}
	return

			for c := 0; c < 256; c += 15 {
				got := paeth(uint8(a), uint8(b), uint8(c))
				want := slowPaeth(uint8(a), uint8(b), uint8(c))
				if got != want {
					t.Errorf("a, b, c = %d, %d, %d: got %d, want %d", a, b, c, got, want)
				}
			}
		}
	}
}

func BenchmarkPaeth(b *testing.B) {
	for i := 0; i < b.N; i++ {
		paeth(uint8(i>>16), uint8(i>>8), uint8(i))
	}
}

func TestPaethDecode(t *testing.T) {

func Xchguintptr(ptr *uintptr, new uintptr) uintptr

//go:noescape
func Load64(ptr *uint64) uint64

//go:nosplit
//go:noinline
func Load8(ptr *uint8) uint8 {
	return *ptr
}

//go:noescape
func And8(ptr *uint8, val uint8)

//go:noescape
func Or8(ptr *uint8, val uint8)

//go:noescape
func And(ptr *uint32, val uint32)

//go:noescape
func Or(ptr *uint32, val uint32)

//go:noescape

	}
	if imms >= (width - 15) {
		return (immr % 16) <= (imms - (width - 15))
	}
	return false
}

type sys uint8

const (
	sys_AT sys = iota
	sys_DC
	sys_IC
	sys_TLBI
	sys_SYS
)

func sys_op_4(op1, crn, crm, op2 uint32) sys {
	sysInst := sysInstFields{uint8(op1), uint8(crn), uint8(crm), uint8(op2)}
	return sysInst.getType()
}

func is_zero(x uint32) bool {
	return x == 0
}

//go:noescape
func LoadAcq64(ptr *uint64) uint64

//go:noescape
func LoadAcquintptr(ptr *uintptr) uintptr

//go:noescape
func Or8(ptr *uint8, val uint8)

//go:noescape
func And8(ptr *uint8, val uint8)

//go:noescape
func And(ptr *uint32, val uint32)

//go:noescape
func Or(ptr *uint32, val uint32)

//go:noescape
func And32(ptr *uint32, val uint32) uint32

//go:noescape

	s := p.Pix[i : i+8 : i+8] // Small cap improves performance, see https://golang.org/issue/27857
	s[0] = uint8(c1.R >> 8)
	s[1] = uint8(c1.R)
	s[2] = uint8(c1.G >> 8)
	s[3] = uint8(c1.G)
	s[4] = uint8(c1.B >> 8)
	s[5] = uint8(c1.B)
	s[6] = uint8(c1.A >> 8)
	s[7] = uint8(c1.A)
}

func (p *RGBA64) SetRGBA64(x, y int, c color.RGBA64) {
	if !(Point{x, y}.In(p.Rect)) {
		return
	}