func (p *RGBA) Set(x, y int, c color.Color) {
	if !(Point{x, y}.In(p.Rect)) {
		return
	}
	i := p.PixOffset(x, y)
	c1 := color.RGBAModel.Convert(c).(color.RGBA)
	s := p.Pix[i : i+4 : i+4] // Small cap improves performance, see https://golang.org/issue/27857
	s[0] = c1.R
	s[1] = c1.G
	s[2] = c1.B
	s[3] = c1.A
}

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

	AFCLASSS

	// 12.3: Double-Precision Load and Store Instructions
	AFLD
	AFSD

	// 12.4: Double-Precision Floating-Point Computational Instructions
	AFADDD
	AFSUBD
	AFMULD
	AFDIVD
	AFMIND
	AFMAXD
	AFSQRTD
	AFMADDD
	AFMSUBD
	AFNMADDD
	AFNMSUBD

	// 12.5: Double-Precision Floating-Point Conversion and Move Instructions
	AFCVTWD
	AFCVTLD
	AFCVTDW

const p224ElementLength = 28

// P224Point is a P224 point. The zero value is NOT valid.
type P224Point struct {
	// The point is represented in projective coordinates (X:Y:Z),
	// where x = X/Z and y = Y/Z.
	x, y, z *fiat.P224Element
}

// NewP224Point returns a new P224Point representing the point at infinity point.
func NewP224Point() *P224Point {
	return &P224Point{
		x: new(fiat.P224Element),

const p521ElementLength = 66

// P521Point is a P521 point. The zero value is NOT valid.
type P521Point struct {
	// The point is represented in projective coordinates (X:Y:Z),
	// where x = X/Z and y = Y/Z.
	x, y, z *fiat.P521Element
}

// NewP521Point returns a new P521Point representing the point at infinity point.
func NewP521Point() *P521Point {
	return &P521Point{
		x: new(fiat.P521Element),

}

// Less reports whether x is less than y.
// For floating-point types, a NaN is considered less than any non-NaN,
// and -0.0 is not less than (is equal to) 0.0.
func Less[T Ordered](x, y T) bool {
	return (isNaN(x) && !isNaN(y)) || x < y
}

// Compare returns
//
//	-1 if x is less than y,
//	 0 if x equals y,
//	+1 if x is greater than y.
//
// For floating-point types, a NaN is considered less than any non-NaN,

	PT_FPR8                 = 24  // Floating point register 8
	PT_FPR9                 = 25  // Floating point register 9
	PT_FPR10                = 26  // Floating point register 10
	PT_FPR11                = 27  // Floating point register 11
	PT_FPR12                = 28  // Floating point register 12
	PT_FPR13                = 29  // Floating point register 13
	PT_FPR14                = 30  // Floating point register 14

const p256ElementLength = 32

// P256Point is a P256 point. The zero value is NOT valid.
type P256Point struct {
	// The point is represented in projective coordinates (X:Y:Z),
	// where x = X/Z and y = Y/Z.
	x, y, z *fiat.P256Element
}

// NewP256Point returns a new P256Point representing the point at infinity point.
func NewP256Point() *P256Point {
	return &P256Point{
		x: new(fiat.P256Element),

      val byte0 = tagClass or constructedBit or tag.toInt()
      sink.writeByte(byte0)
    } else {
      val byte0 = tagClass or constructedBit or 0b0001_1111
      sink.writeByte(byte0)
      writeVariableLengthLong(tag)
    }

    // Write the length. This takes 1 byte if length is less than 128.
    val length = content.size
    if (length < 128) {
      sink.writeByte(length.toInt())
    } else {

	Test{100000000000000008388608, "100000000000000008388608", "1.0000000000000001e+23"},
	Test{1e23 + 8388609, "1e23+8388609", "1.0000000000000001e+23"},

	// "x" = the floating point value from converting the string x.
	// These are exactly representable in 64-bit floating point:
	//	1e23-8388608
	//	1e23+8388608
	// The former has an even mantissa, so "1e23" rounds to 1e23-8388608.
	// If "1e23+8388608" is implemented as "1e23" + "8388608",

// The compiler was failing to correctly report an error when a dot
// expression was used a struct literal key.

package p

type T struct {
        toInt    map[string]int
        toString map[int]string
}

var t = T{
        foo.toInt:    make(map[string]int), // ERROR "field name"
        bar.toString: make(map[int]string), // ERROR "field name"