package sys

Import Path
	runtime/internal/sys (on golang.org and go.dev)

Dependency Relation
	imports 0 packages, and imported by 2 packages

Involved Source Files

	      arch.go
	      arch_amd64.go
	      intrinsics.go
	      intrinsics_common.go
	      stubs.go
	   d➜ sys.go
		package sys contains system- and configuration- and architecture-specific
		constants used by the runtime.

	      zgoarch_amd64.go
	      zgoos_darwin.go
	      zversion.go
Package-Level Type Names (total 2, both are exported)

	/* sort exporteds by: alphabet | popularity */
	 type ArchFamilyType int (basic type)

		As Types Of (total 11, all are exported)
			const AMD64
			const ArchFamily
			const ARM
			const ARM64
			const I386
			const MIPS
			const MIPS64
			const PPC64
			const RISCV64
			const S390X
			const WASM

	 type Uintreg uint64 (basic type)
Package-Level Functions (total 12, all are exported)

	 func Bswap32(x uint32) uint32
		Bswap32 returns its input with byte order reversed
		0x01020304 -> 0x04030201

	 func Bswap64(x uint64) uint64
		Bswap64 returns its input with byte order reversed
		0x0102030405060708 -> 0x0807060504030201

	 func Ctz32(x uint32) int
		Ctz32 counts trailing (low-order) zeroes,
		and if all are zero, then 32.

	 func Ctz64(x uint64) int
		Ctz64 counts trailing (low-order) zeroes,
		and if all are zero, then 64.

	 func Ctz8(x uint8) int
		Ctz8 returns the number of trailing zero bits in x; the result is 8 for x == 0.

	 func LeadingZeros64(x uint64) int
		LeadingZeros64 returns the number of leading zero bits in x; the result is 64 for x == 0.

	 func LeadingZeros8(x uint8) int
		LeadingZeros8 returns the number of leading zero bits in x; the result is 8 for x == 0.

	 func Len64(x uint64) (n int)
		len64 returns the minimum number of bits required to represent x; the result is 0 for x == 0.

	 func Len8(x uint8) int
		Len8 returns the minimum number of bits required to represent x; the result is 0 for x == 0.

	 func OnesCount64(x uint64) int
		OnesCount64 returns the number of one bits ("population count") in x.

	 func TrailingZeros64(x uint64) int
		TrailingZeros64 returns the number of trailing zero bits in x; the result is 64 for x == 0.

	 func TrailingZeros8(x uint8) int
		TrailingZeros8 returns the number of trailing zero bits in x; the result is 8 for x == 0.


Package-Level Variables (total 6, in which 1 are exported)

	  var DefaultGoroot string // set at link time
	/* 5 unexporteds ... *//* 5 unexporteds: */
	  var deBruijn64tab [64]byte
	  var deBruijnIdx32ctz [32]byte
	  var deBruijnIdx64ctz [64]byte
	  var len8tab [256]uint8
	  var ntz8tab [256]uint8
Package-Level Constants (total 71, in which 65 are exported)

	const AMD64 ArchFamilyType = 0
	const ArchFamily ArchFamilyType = 0
	const ARM ArchFamilyType = 1
	const ARM64 ArchFamilyType = 2
	const BigEndian = false
	const DefaultPhysPageSize = 4096
	const GOARCH = "amd64"
	const Goarch386 = 0
	const GoarchAmd64 = 1
	const GoarchAmd64p32 = 0
	const GoarchArm = 0
	const GoarchArm64 = 0
	const GoarchArm64be = 0
	const GoarchArmbe = 0
	const GoarchMips = 0
	const GoarchMips64 = 0
	const GoarchMips64le = 0
	const GoarchMips64p32 = 0
	const GoarchMips64p32le = 0
	const GoarchMipsle = 0
	const GoarchPpc = 0
	const GoarchPpc64 = 0
	const GoarchPpc64le = 0
	const GoarchRiscv = 0
	const GoarchRiscv64 = 0
	const GoarchS390 = 0
	const GoarchS390x = 0
	const GoarchSparc = 0
	const GoarchSparc64 = 0
	const GoarchWasm = 0
	const Goexperiment = ""
	const GOOS = "darwin"
	const GoosAix = 0
	const GoosAndroid = 0
	const GoosDarwin = 1
	const GoosDragonfly = 0
	const GoosFreebsd = 0
	const GoosHurd = 0
	const GoosIllumos = 0
	const GoosIos = 0
	const GoosJs = 0
	const GoosLinux = 0
	const GoosNacl = 0
	const GoosNetbsd = 0
	const GoosOpenbsd = 0
	const GoosPlan9 = 0
	const GoosSolaris = 0
	const GoosWindows = 0
	const GoosZos = 0
	const I386 ArchFamilyType = 3
	const Int64Align = 8
	const MinFrameSize = 0
	const MIPS ArchFamilyType = 4
	const MIPS64 ArchFamilyType = 5
	const PCQuantum = 1
	const PPC64 ArchFamilyType = 6
	const PtrSize = 8 // unsafe.Sizeof(uintptr(0)) but an ideal const
	const RegSize = 8 // unsafe.Sizeof(uintreg(0)) but an ideal const
	const RISCV64 ArchFamilyType = 7
	const S390X ArchFamilyType = 8
	const SpAlign = 1 // SP alignment: 1 normally, 16 for ARM64
	const StackGuardMultiplier = 1
		AIX requires a larger stack for syscalls.

	const StackGuardMultiplierDefault = 1
	const TheVersion = "go1.16.3"
	const WASM ArchFamilyType = 9
	/* 6 unexporteds ... *//* 6 unexporteds: */
	const deBruijn32ctz = 73743071
	const deBruijn64 = 285870213051353865
	const deBruijn64ctz = 151050438420815295
	const m0 = 6148914691236517205 // 01010101 ...
	const m1 = 3689348814741910323 // 00110011 ...
	const m2 = 1085102592571150095 // 00001111 ...

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