if r0 != 0 {
		regerrno = syscall.Errno(r0)
	}
	return
}

func regEnumValue(key syscall.Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) {

func setProcessCPUProfiler(hz int32) {}
func setThreadCPUProfiler(hz int32)  {}
func sigdisable(uint32)              {}
func sigenable(uint32)               {}
func sigignore(uint32)               {}

// Stubs so tests can link correctly. These should never be called.
func open(name *byte, mode, perm int32) int32        { panic("not implemented") }
func closefd(fd int32) int32                         { panic("not implemented") }

	// ppc64x:-"MOVBZ\tR\\d+,\\sR\\d+"
	if uint32(*u8) == val32[0] {
		return true
	}

	// ppc64x:-"MOVH\tR\\d+,\\sR\\d+"
	if int32(*x16) == sval32[0] {
		return true
	}

	// ppc64x:-"MOVHZ\tR\\d+,\\sR\\d+"
	if uint32(*u16) == val32[0] {
		return true
	}

	// Verify the truncates are using the correct sign.
	// ppc64x:-"MOVWZ\tR\\d+,\\sR\\d+"
	if int32(*x64) == sval32[0] {
		return true
	}

//extern gccgoGetCpuidCount
func gccgoGetCpuidCount(eaxArg, ecxArg uint32, eax, ebx, ecx, edx *uint32)

func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32) {
	var a, b, c, d uint32
	gccgoGetCpuidCount(eaxArg, ecxArg, &a, &b, &c, &d)
	return a, b, c, d
}

//extern gccgoXgetbv
func gccgoXgetbv(eax, edx *uint32)

func xgetbv() (eax, edx uint32) {
	var a, d uint32
	gccgoXgetbv(&a, &d)
	return a, d
}

	b[0] = byte(v)
	b[1] = byte(v >> 8)
}

func (binaryLittleEndian) Uint32(b []byte) uint32 {
	_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
	return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
}

func (binaryLittleEndian) PutUint32(b []byte, v uint32) {
	_ = b[3] // early bounds check to guarantee safety of writes below
	b[0] = byte(v)
	b[1] = byte(v >> 8)

	SC	R3, (R1)
	BEQ	R3, -4(PC)
	SYNC
	RET

// func Or32(addr *uint32, v uint32) old uint32
TEXT ·Or32(SB), NOSPLIT, $0-20
	MOVV	ptr+0(FP), R1
	MOVW	val+8(FP), R2

	SYNC
	LL	(R1), R3
	OR	R2, R3, R4
	SC	R4, (R1)
	BEQ	R4, -3(PC)
	SYNC
	MOVW	R3, ret+16(FP)
	RET

// func And32(addr *uint32, v uint32) old uint32
TEXT ·And32(SB), NOSPLIT, $0-20
	MOVV	ptr+0(FP), R1
	MOVW	val+8(FP), R2

	b = b[i : i+4 : len(b)] // Help the compiler eliminate bounds checks on the next line.
	return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
}

func load64(b []byte, i int32) uint64 {
	b = b[i : i+8 : len(b)] // Help the compiler eliminate bounds checks on the next line.
	return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
		uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56

	} else {
		uvdelta >>= 1
	}
	vdelta := int32(uvdelta)
	pcdelta := readvarint(p) * uint32(arch.MinLC)
	*pc += uint64(pcdelta)
	*val += vdelta
	return true
}

// readvarint reads, removes, and returns a varint from *p.
func readvarint(p *[]byte) uint32 {
	var v, shift uint32
	s := *p
	for shift = 0; ; shift += 7 {
		b := s[0]
		s = s[1:]
		v |= (uint32(b) & 0x7F) << shift
		if b&0x80 == 0 {
			break

	padding     [3]uint16
}

type xmmreg struct {
	element [4]uint32
}

type fpstate struct {
	cwd       uint16
	swd       uint16
	ftw       uint16
	fop       uint16
	rip       uint64
	rdp       uint64
	mxcsr     uint32
	mxcr_mask uint32
	_st       [8]fpxreg
	_xmm      [16]xmmreg
	padding   [24]uint32
}

type fpxreg1 struct {
	significand [4]uint16
	exponent    uint16

	out.Write32(uint32(sectoff))

	elfsym := ld.ElfSymForReloc(ctxt, r.Xsym)
	switch r.Type {
	default:
		return false
	case objabi.R_ADDR, objabi.R_DWARFSECREF:
		if r.Size != 4 {
			return false
		}
		out.Write32(uint32(elf.R_MIPS_32) | uint32(elfsym)<<8)
	case objabi.R_ADDRMIPS:
		out.Write32(uint32(elf.R_MIPS_LO16) | uint32(elfsym)<<8)
	case objabi.R_ADDRMIPSU: