// ErrRange
		// next float64 - too large
		{"+0x1p1024", infp0, ErrRange},
		{"-0x1p1024", infm0, ErrRange},
		{"+0x1p1024i", inf0p, ErrRange},
		{"-0x1p1024i", inf0m, ErrRange},
		{"+0x1p1024+0x1p1024i", infpp, ErrRange},
		{"+0x1p1024-0x1p1024i", infpm, ErrRange},
		{"-0x1p1024+0x1p1024i", infmp, ErrRange},
		{"-0x1p1024-0x1p1024i", infmm, ErrRange},
		// the border is ...158079
		// borderline - okay

	{"0x0p129", "0", nil},
	{"0x0p130", "0", nil},
	{"0x0p1022", "0", nil},
	{"0x0p1023", "0", nil},
	{"0x0p1024", "0", nil},
	{"0x0p1025", "0", nil},
	{"0x0p1026", "0", nil},
	{"-0x0p126", "-0", nil},
	{"-0x0p127", "-0", nil},
	{"-0x0p128", "-0", nil},
	{"-0x0p129", "-0", nil},
	{"-0x0p130", "-0", nil},
	{"-0x0p1022", "-0", nil},
	{"-0x0p1023", "-0", nil},
	{"-0x0p1024", "-0", nil},
	{"-0x0p1025", "-0", nil},

		{"0x1.fffffffffffff0p1023", math.MaxFloat64, Exact},
		{"0x1.fffffffffffff4p1023", math.MaxFloat64, Below},

		// overflow
		{"0x1.fffffffffffff8p1023", math.Inf(+1), Above},
		{"0x1p1024", math.Inf(+1), Above},
		{"1e10000", math.Inf(+1), Above},
		{"0x1.fffffffffffff8p2147483646", math.Inf(+1), Above}, // overflow in rounding
		{"Inf", math.Inf(+1), Exact},

// SmallestNonzero is the smallest positive, non-zero value representable by the type.
const (
	MaxFloat32             = 0x1p127 * (1 + (1 - 0x1p-23)) // 3.40282346638528859811704183484516925440e+38
	SmallestNonzeroFloat32 = 0x1p-126 * 0x1p-23            // 1.401298464324817070923729583289916131280e-45

	MaxFloat64             = 0x1p1023 * (1 + (1 - 0x1p-52)) // 1.79769313486231570814527423731704356798070e+308

// for non-hexadecimal floats.

package main

import "fmt"

const (
	x1 = 1.1    // float
	x2 = 1e10   // float
	x3 = 0x1e10 // integer (e is a hex digit)
)

const x4 = 0x1p10 // valid hexadecimal float
const x5 = 1p10   // ERROR "'p' exponent requires hexadecimal mantissa|invalid prefix"
const x6 = 0P0    // ERROR "'P' exponent requires hexadecimal mantissa|invalid prefix"

func main() {

		{0x10f46, 0x10f50, 1},
		{0x10f82, 0x10f85, 1},
		{0x11000, 0x11002, 1},
		{0x11038, 0x11046, 1},
		{0x11070, 0x11073, 3},
		{0x11074, 0x1107f, 11},
		{0x11080, 0x11082, 1},
		{0x110b0, 0x110ba, 1},
		{0x110c2, 0x11100, 62},
		{0x11101, 0x11102, 1},
		{0x11127, 0x11134, 1},
		{0x11145, 0x11146, 1},
		{0x11173, 0x11180, 13},
		{0x11181, 0x11182, 1},
		{0x111b3, 0x111c0, 1},

)

var SystemReg = []struct {
	Name string
	Reg  int16
	Enc  uint32
	// AccessFlags is the readable and writeable property of system register.
	AccessFlags uint8
}{
	{"ACTLR_EL1", REG_ACTLR_EL1, 0x181020, SR_READ | SR_WRITE},
	{"AFSR0_EL1", REG_AFSR0_EL1, 0x185100, SR_READ | SR_WRITE},
	{"AFSR1_EL1", REG_AFSR1_EL1, 0x185120, SR_READ | SR_WRITE},
	{"AIDR_EL1", REG_AIDR_EL1, 0x1900e0, SR_READ},

	SO_NOTIFYCONFLICT                 = 0x1026
	SO_NP_EXTENSIONS                  = 0x1083
	SO_NREAD                          = 0x1020
	SO_NUMRCVPKT                      = 0x1112
	SO_NWRITE                         = 0x1024
	SO_OOBINLINE                      = 0x100
	SO_PEERLABEL                      = 0x1011
	SO_RANDOMPORT                     = 0x1082
	SO_RCVBUF                         = 0x1002
	SO_RCVLOWAT                       = 0x1004

	SO_NOSIGPIPE                      = 0x1022
	SO_NOTIFYCONFLICT                 = 0x1026
	SO_NP_EXTENSIONS                  = 0x1083
	SO_NREAD                          = 0x1020
	SO_NWRITE                         = 0x1024
	SO_OOBINLINE                      = 0x100
	SO_PEERLABEL                      = 0x1011
	SO_RANDOMPORT                     = 0x1082
	SO_RCVBUF                         = 0x1002
	SO_RCVLOWAT                       = 0x1004

	SO_ACCEPTCONN                     = 0x2
	SO_BINDANY                        = 0x1000
	SO_BROADCAST                      = 0x20
	SO_DEBUG                          = 0x1
	SO_DOMAIN                         = 0x1024
	SO_DONTROUTE                      = 0x10
	SO_ERROR                          = 0x1007
	SO_KEEPALIVE                      = 0x8
	SO_LINGER                         = 0x80
	SO_NETPROC                        = 0x1020