// the value here doesn't really matter).
	MOV	$0, X10

	RET

TEXT runtime·sigfwd(SB),NOSPLIT,$0-32
	MOVW	sig+8(FP), X10
	MOV	info+16(FP), X11
	MOV	ctx+24(FP), X12
	MOV	fn+0(FP), X5
	JALR	X1, X5
	RET

TEXT runtime·sigtramp(SB),NOSPLIT|TOPFRAME,$224
	// Save callee-save registers (X8, X9, X18..X27, F8, F9, F18..F27)
	MOV	X8, (4*8)(X2)
	MOV	X9, (5*8)(X2)
	MOV	X18, (6*8)(X2)
	MOV	X19, (7*8)(X2)

 *   {@code 1.0.RC2 < 1.0-RC3 < 1.0.1}; but prefer {@code 1.0.0-RC1} over {@code 1.0.0.RC1}, and more
 *   generally: {@code 1.0.X2 < 1.0-X3 < 1.0.1} for any string {@code X}; but prefer {@code 1.0.0-X1}
 *   over {@code 1.0.0.X1}.</li>
 * </ul>
 *
 * @see <a href="https://maven.apache.org/pom.html#version-order-specification">"Versioning" in the POM reference</a>
 */

	{"[X0-]", "register list: bad high register in `[X0-]`"},
	{"[X0-x]", "register list: bad high register in `[X0-x`"},
	{"[X0-X1-X2]", "register list: expected ']' after `[X0-X1`, found '-'"},
	{"[X0,X3]", "register list: expected '-' after `[X0`, found ','"},
	{"[X0,X1,X2,X3]", "register list: expected '-' after `[X0`, found ','"},
	{"$foo<ABI0>", "ABI selector only permitted when compiling runtime, reference was to \"foo\""},

	"CX",
	"DX",
	"BX",
	"SP",
	"BP",
	"SI",
	"DI",
	"X0",
	"X1",
	"X2",
	"X3",
	"X4",
	"X5",
	"X6",
	"X7",
}

var regNamesAMD64 = []string{
	"AX",
	"CX",
	"DX",
	"BX",
	"SP",
	"BP",
	"SI",
	"DI",
	"R8",
	"R9",
	"R10",
	"R11",
	"R12",
	"R13",
	"R14",
	"R15",
	"X0",
	"X1",
	"X2",
	"X3",
	"X4",
	"X5",
	"X6",
	"X7",
	"X8",
	"X9",

		}
		q[j] = qhat
	}

	putNat(qhatvp)
}

// greaterThan reports whether the two digit numbers x1 x2 > y1 y2.
// TODO(rsc): In contradiction to most of this file, x1 is the high
// digit and x2 is the low digit. This should be fixed.
func greaterThan(x1, x2, y1, y2 Word) bool {
	return x1 > y1 || x1 == y1 && x2 > y2
}

// divRecursiveThreshold is the number of divisor digits

.exampleblock[data-lang=kotlin] > .content .title {
    background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 8 8' xmlns='http://www.w3.org/2000/svg'><linearGradient id='g' gradientUnits='userSpaceOnUse' x1='8' y1='0' x2='0' y2='8'><stop offset='0' stop-color='%23e44857'/><stop offset='.4689' stop-color='%23c711e1'/><stop offset='1' stop-color='%237f52ff'/></linearGradient><polygon fill='url(%23g)' points='8 8 0 8 0 0 8 0 4 4'/></svg>");

	F4:   "F4",
	F5:   "F5",
	F6:   "F6",
	F7:   "F7",
	M0:   "M0",
	M1:   "M1",
	M2:   "M2",
	M3:   "M3",
	M4:   "M4",
	M5:   "M5",
	M6:   "M6",
	M7:   "M7",
	X0:   "X0",
	X1:   "X1",
	X2:   "X2",
	X3:   "X3",
	X4:   "X4",
	X5:   "X5",
	X6:   "X6",
	X7:   "X7",
	X8:   "X8",
	X9:   "X9",
	X10:  "X10",
	X11:  "X11",
	X12:  "X12",
	X13:  "X13",
	X14:  "X14",

func invalidSep(x string) int {
	x1 := ' ' // prefix char, we only care if it's 'x'
	d := '.'  // digit, one of '_', '0' (a digit), or '.' (anything else)
	i := 0

	// a prefix counts as a digit
	if len(x) >= 2 && x[0] == '0' {
		x1 = lower(rune(x[1]))
		if x1 == 'x' || x1 == 'o' || x1 == 'b' {
			d = '0'
			i = 2
		}
	}

	// mantissa and exponent

	case intVal:
		switch x1 := x.(type) {
		case int64Val:
			return i64toi(x1), y
		}
	case ratVal:
		switch x1 := x.(type) {
		case int64Val:
			return i64tor(x1), y
		case intVal:
			return itor(x1), y
		}
	case floatVal:
		switch x1 := x.(type) {
		case int64Val:
			return i64tof(x1), y
		case intVal:
			return itof(x1), y
		case ratVal:

func (z *Int) And(x, y *Int) *Int {
	if x.neg == y.neg {
		if x.neg {
			// (-x) & (-y) == ^(x-1) & ^(y-1) == ^((x-1) | (y-1)) == -(((x-1) | (y-1)) + 1)
			x1 := nat(nil).sub(x.abs, natOne)
			y1 := nat(nil).sub(y.abs, natOne)
			z.abs = z.abs.add(z.abs.or(x1, y1), natOne)
			z.neg = true // z cannot be zero if x and y are negative
			return z
		}

		// x & y == x & y
		z.abs = z.abs.and(x.abs, y.abs)