TST R17<<11, R24                           // 1f2f11ea
	ANDSW $0x80000007, R9, ZR                  // ANDSW   $2147483655, R9, ZR   // 3f0d0172
	ANDS $0xfffffff0, LR, ZR                   // ANDS    $4294967280, R30, ZR  // df6f7cf2
	ANDSW R10@>21, R2, ZR                      // 5f54ca6a
	ANDS R17<<11, R24, ZR                      // 1f2f11ea
	UBFIZW $3, R19, $14, R14                   // 6e361d53

	MOVD	$1, t0
	CMP	$0, t2
	CSEL	EQ, ZR, t0, t2
	CMP	$0, hlp1
	CSEL	EQ, ZR, t0, hlp1

	MOVD	p256const0<>(SB), const0
	MOVD	p256const1<>(SB), const1
	EOR	t2<<1, hlp1

	// Negate y2in based on sign
	LDP	2*16(b_ptr), (y0, y1)
	LDP	3*16(b_ptr), (y2, y3)
	MOVD	$-1, acc0

	SUBS	y0, acc0, acc0
	SBCS	y1, const0, acc1
	SBCS	y2, ZR, acc2
	SBCS	y3, const1, acc3
	SBC	$0, ZR, t0

	}
	reader := bytes.NewReader(data)
	zr, err := zip.NewReader(reader, int64(len(data)))
	if err != nil {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
		return
	}
	rpt := importMetaReport{
		madmin.BucketMetaImportErrs{
			Buckets: make(map[string]madmin.BucketStatus, len(zr.File)),
		},
	}

	bucketMap := make(map[string]*BucketMetadata, len(zr.File))

	updatedAt := UTCNow()

	b.Run("X25519", func(b *testing.B) { f(b, ecdh.X25519()) })
}

type zr struct{}

// Read replaces the contents of dst with zeros. It is safe for concurrent use.
func (zr) Read(dst []byte) (n int, err error) {
	clear(dst)
	return len(dst), nil
}

var zeroReader = zr{}

const linkerTestProgram = `
package main
import "crypto/ecdh"
import "crypto/rand"
func main() {

	{"R0", "R0"},
	{"R10", "R10"},
	{"R11", "R11"},
	{"R18_PLATFORM", "R18"},
	{"$4503601774854144.0", "$(4503601774854144.0)"},
	{"$runtime·badsystemstack(SB)", "$runtime.badsystemstack(SB)"},
	{"ZR", "ZR"},
	{"(ZR)", "(ZR)"},
	{"(R29, RSP)", "(R29, RSP)"},
	{"[):[o-FP", ""}, // Issue 12469 - asm hung parsing the o-FP range on non ARM platforms.
}

var mips64OperandTests = []operandTest{

	const aesIV = "IV for ECDSA CTR"
	return &cipher.StreamReader{
		R: zeroReader,
		S: cipher.NewCTR(block, []byte(aesIV)),
	}, nil
}

type zr struct{}

var zeroReader = zr{}

// Read replaces the contents of dst with zeros. It is safe for concurrent use.
func (zr) Read(dst []byte) (n int, err error) {
	clear(dst)
	return len(dst), nil
}

	REG_V18
	REG_V19
	REG_V20
	REG_V21
	REG_V22
	REG_V23
	REG_V24
	REG_V25
	REG_V26
	REG_V27
	REG_V28
	REG_V29
	REG_V30
	REG_V31

	REG_RSP = REG_V31 + 32 // to differentiate ZR/SP, REG_RSP&0x1f = 31
)

// bits 0-4 indicates register: Vn
// bits 5-8 indicates arrangement: <T>
const (
	REG_ARNG = obj.RBaseARM64 + 1<<10 + iota<<9 // Vn.<T>

	MOVD	m_gsignal(R21), R22          // g.m.gsignal
	CBZ	R22, nosaveg
	CMP	g, R22
	BEQ	nosaveg
	MOVD	(g_stack+stack_lo)(R22), R22 // g.m.gsignal.stack.lo
	MOVD	g, (R22)

	BL	(R2)

	MOVD	ZR, (R22)  // clear g slot, R22 is unchanged by C code

	B	finish

nosaveg:
	BL	(R2)
	B	finish

fallback:
	MOVD	$SYS_clock_gettime, R8
	SVC

finish:
	MOVD	0(RSP), R3	// sec

	dataZ, err := os.ReadFile("testdata/xl-meta-consist.zip")
	if err != nil {
		t.Fatal(err)
	}
	var vers [][]xlMetaV2ShallowVersion
	zr, err := zip.NewReader(bytes.NewReader(dataZ), int64(len(dataZ)))
	if err != nil {
		t.Fatal(err)
	}
	for _, file := range zr.File {
		if file.UncompressedSize64 == 0 {
			continue
		}
		in, err := file.Open()
		if err != nil {
			t.Fatal(err)
		}

	// flag in each step, adjust $R0 if we unrolled 4 elements
	vwPreIter(ADDS, ADCS, R10, add4)
	SUB	$4, R0
add4:
	BCC	copy
	vwOneIter(ADCS, R0, len1)
	B	add4
copy:
	MOVD	ZR, c+56(FP)
	CMP	R1, R3
	BEQ	done
copy_4:				// no carry flag, copy the rest
	vwOneIterCopy(R0, done)
	B	copy_4

// func subVW(z, x []Word, y Word) (c Word)