if !ok {
				return "", punyError(encoded)
			}
			pos++
			i, overflow = madd(i, digit, w)
			if overflow {
				return "", punyError(encoded)
			}
			t := k - bias
			if k <= bias {
				t = tmin
			} else if k >= bias+tmax {
				t = tmax
			}
			if digit < t {
				break
			}
			w, overflow = madd(0, w, base-t)
			if overflow {
				return "", punyError(encoded)
			}
		}

	AND $0x7ffffffffffff, R1, R11
	AND $0x7ffffffffffff, R2, R12
	AND $0x7ffffffffffff, R3, R13
	AND $0x7ffffffffffff, R4, R14

	ADD R0>>51, R11, R11
	ADD R1>>51, R12, R12
	ADD R2>>51, R13, R13
	ADD R3>>51, R14, R14
	// R4>>51 * 19 + R10 -> R10
	LSR $51, R4, R21
	MOVD $19, R22
	MADD R22, R10, R21, R10

	STP (R10, R11), 0(R20)
	STP (R12, R13), 16(R20)
	MOVD R14, 32(R20)

// IsMIPSMUL reports whether the op (as defined by an mips.A* constant) is
// one of the MUL/DIV/REM/MADD/MSUB instructions that require special handling.
func IsMIPSMUL(op obj.As) bool {
	switch op {
	case mips.AMUL, mips.AMULU, mips.AMULV, mips.AMULVU,
		mips.ADIV, mips.ADIVU, mips.ADIVV, mips.ADIVVU,
		mips.AREM, mips.AREMU, mips.AREMV, mips.AREMVU,
		mips.AMADD, mips.AMSUB:
		return true
	}
	return false
}

	"CMOVZ",
	"CMPEQD",
	"CMPEQF",
	"CMPGED",
	"CMPGEF",
	"CMPGTD",
	"CMPGTF",
	"DIV",
	"DIVD",
	"DIVF",
	"DIVU",
	"DIVW",
	"GOK",
	"LL",
	"LLV",
	"LUI",
	"MADD",
	"MOVB",
	"MOVBU",
	"MOVD",
	"MOVDF",
	"MOVDW",
	"MOVF",
	"MOVFD",
	"MOVFW",
	"MOVH",
	"MOVHU",
	"MOVW",
	"MOVWD",
	"MOVWF",
	"MOVWL",
	"MOVWR",
	"MSUB",
	"MUL",
	"MULD",
	"MULF",

	MOVD R29, 384(R19)    <=>    str x29, [x19,#384]
	MOVB.P R30, 30(R4)    <=>    strb w30, [x4],#30
	STLRH R21, (R19)      <=>    stlrh w21, [x19]

(2) MADD, MADDW, MSUB, MSUBW, SMADDL, SMSUBL, UMADDL, UMSUBL <Rm>, <Ra>, <Rn>, <Rd>

Examples:

	MADD R2, R30, R22, R6       <=>    madd x6, x22, x2, x30
	SMSUBL R10, R3, R17, R27    <=>    smsubl x27, w17, w10, x3

	"LDORLH",
	"LDORLW",
	"LDORW",
	"LDP",
	"LDPSW",
	"LDPW",
	"LDXP",
	"LDXPW",
	"LDXR",
	"LDXRB",
	"LDXRH",
	"LDXRW",
	"LSL",
	"LSLW",
	"LSR",
	"LSRW",
	"MADD",
	"MADDW",
	"MNEG",
	"MNEGW",
	"MOVB",
	"MOVBU",
	"MOVD",
	"MOVH",
	"MOVHU",
	"MOVK",
	"MOVKW",
	"MOVN",
	"MOVNW",
	"MOVP",
	"MOVPD",
	"MOVPQ",
	"MOVPS",
	"MOVPSW",

	//		outcode(int($1), &$2, int($4), &$6);
	//	}
	ADD	R1, R2, R3

	//	LADDW imm ',' sreg ',' rreg
	//	{
	//		outcode(int($1), &$2, int($4), &$6);
	//	}
	ADD	$1, R2, R3

	//	LADDW rreg ',' rreg
	//	{
	//		outcode(int($1), &$2, 0, &$4);
	//	}
	ADD	R1, R2

	//	LADDW imm ',' rreg
	//	{
	//		outcode(int($1), &$2, 0, &$4);
	//	}
	ADD	$4, R1

	//	LMUL rreg ',' rreg
	//	{

	FMOVD   0(R1), F2
	WFCHDBS V0, V2, V4
	BEQ     L9
	WFCHDBS V2, V0, V2
	BNE     L1
	MOVD    $tanhxmone<>+0(SB), R1
	FMOVD   0(R1), F0
	FMOVD   F0, ret+8(FP)
	RET

L3:
	FADD    F4, F2
	FMOVD   tanhrodataL18<>+80(SB), F4
	FMADD   F4, F2, F0
	FMOVD   tanhrodataL18<>+72(SB), F1
	WFMDB   V0, V0, V3
	FMOVD   tanhrodataL18<>+64(SB), F2
	WFMADB  V0, V1, V2, V1
	FMOVD   tanhrodataL18<>+56(SB), F4

	WORD    $0xA7487FBE     //lhi %r4,32702
	FMADD   F3, F2, F1
	SUBW    R1, R4
	RISBGZ	$57, $60, $3, R4, R12
	WORD    $0x682C5000     //ld %f2,0(%r12,%r5)
	FMSUB   F2, F4, F0
	RISBGN	$0, $15, $48, R1, R2
	WFMADB  V0, V6, V2, V6
	RISBGN	$0, $15, $48, R4, R3
	LDGR    R2, F2
	LDGR    R3, F0
	FMADD   F2, F1, F2
	FMADD   F0, F6, F0
	FADD    F2, F0
	FMOVD   F0, ret+8(FP)
	RET

L22:

	MOVD    $sincoss2<>+0(SB), R2
	FMOVD   0(R2), F7
	WFMADB  V6, V3, V7, V3
	MOVD    $sincoss3<>+0(SB), R2
	FMADD   F5, F4, F0
	FMOVD   0(R2), F4
	MOVD    $sincoss1<>+0(SB), R2
	FMADD   F1, F6, F4
	FMOVD   0(R2), F1
	FMADD   F3, F2, F1
	FMUL    F0, F2
	WFMADB  V6, V4, V1, V6
	TMLL	R1, $2
	FMADD   F6, F2, F0
	BNE     L34
	FMOVD   F0, ret+8(FP)
	RET

L33:
	MOVD    $sincosxnan<>+0(SB), R1