{name: "DIVV", argLength: 2, reg: gp21, asm: "DIVV", typ: "Int64"},                         // arg0 / arg1, signed
		{name: "DIVVU", argLength: 2, reg: gp21, asm: "DIVVU", typ: "UInt64"},                      // arg0 / arg1, unsigned
		{name: "REMV", argLength: 2, reg: gp21, asm: "REMV", typ: "Int64"},                         // arg0 / arg1, signed

		{name: "DIVV", argLength: 2, reg: gp2hilo, asm: "DIVV", typ: "(Int64,Int64)"},                        // arg0 / arg1, signed, results hi=arg0%arg1,lo=arg0/arg1
		{name: "DIVVU", argLength: 2, reg: gp2hilo, asm: "DIVVU", typ: "(UInt64,UInt64)"},                    // arg0 / arg1, signed, results hi=arg0%arg1,lo=arg0/arg1

		{name: "ADDF", argLength: 2, reg: fp21, asm: "ADDF", commutative: true}, // arg0 + arg1

	MOVL	$SYS_sigaltstack, AX
	INT	$0x80
	JAE	2(PC)
	MOVL	$0xf1, 0xf1  // crash
	RET

TEXT runtime·usleep(SB),NOSPLIT,$20
	MOVL	$0, DX
	MOVL	usec+0(FP), AX
	MOVL	$1000000, CX
	DIVL	CX
	MOVL	AX, 12(SP)		// tv_sec
	MOVL	$1000, AX
	MULL	DX
	MOVL	AX, 16(SP)		// tv_nsec

	MOVL	$0, 0(SP)
	LEAL	12(SP), AX
	MOVL	AX, 4(SP)		// arg 1 - rqtp
	MOVL	$0, 8(SP)		// arg 2 - rmtp

	SYSCALL
	JCC	2(PC)
	NEGQ	AX			// caller expects negative errno
	MOVL	AX, ret+24(FP)
	RET

TEXT runtime·usleep(SB),NOSPLIT,$16
	MOVL	$0, DX
	MOVL	usec+0(FP), AX
	MOVL	$1000000, CX
	DIVL	CX
	MOVQ	AX, 0(SP)		// tv_sec
	MOVL	$1000, AX
	MULL	DX
	MOVQ	AX, 8(SP)		// tv_nsec

	MOVQ	SP, DI			// arg 1 - rqtp
	MOVQ	$0, SI			// arg 2 - rmtp
	MOVL	$SYS___nanosleep50, AX
	SYSCALL
	RET

	// determine index into runtime·cbs table
	MOVQ	$runtime·callbackasm(SB), DX
	SUBQ	DX, AX
	MOVQ	$0, DX
	MOVQ	$5, CX	// divide by 5 because each call instruction in runtime·callbacks is 5 bytes long
	DIVL	CX
	SUBQ	$1, AX	// subtract 1 because return PC is to the next slot

	// Switch from the host ABI to the Go ABI.
	PUSH_REGS_HOST_TO_ABI0()

	// Create a struct callbackArgs on our stack to be passed as

	DIVDO:          "divdo",
	DIVDOCC:        "divdo.",
	DIVDU:          "divdu",
	DIVDUCC:        "divdu.",
	DIVDUO:         "divduo",
	DIVDUOCC:       "divduo.",
	DIVW:           "divw",
	DIVWCC:         "divw.",
	DIVWO:          "divwo",
	DIVWOCC:        "divwo.",
	DIVWU:          "divwu",
	DIVWUCC:        "divwu.",
	DIVWUO:         "divwuo",
	DIVWUOCC:       "divwuo.",

	SYSCALL
	BEQ	R7, 2(PC)
	SUBVU	R2, R0, R2	// caller expects negative errno
	MOVW	R2, ret+24(FP)
	RET

TEXT runtime·usleep(SB),NOSPLIT,$24-4
	MOVWU	usec+0(FP), R3
	MOVV	R3, R5
	MOVW	$1000000, R4
	DIVVU	R4, R3
	MOVV	LO, R3
	MOVV	R3, 8(R29)		// tv_sec
	MOVW	$1000, R4
	MULVU	R3, R4
	MOVV	LO, R4
	SUBVU	R4, R5
	MOVV	R5, 16(R29)		// tv_nsec

	ADDV	$8, R29, R4		// arg 1 - rqtp
	MOVV	$0, R5			// arg 2 - rmtp

		v.AddArg(v0)
		return true
	}
}
func rewriteValueMIPS64_OpDiv8u(v *Value) bool {
	v_1 := v.Args[1]
	v_0 := v.Args[0]
	b := v.Block
	typ := &b.Func.Config.Types
	// match: (Div8u x y)
	// result: (Select1 (DIVVU (ZeroExt8to64 x) (ZeroExt8to64 y)))
	for {
		x := v_0
		y := v_1
		v.reset(OpSelect1)
		v0 := b.NewValue0(v.Pos, OpMIPS64DIVVU, types.NewTuple(typ.UInt64, typ.UInt64))

	"CVTTPD2PL",
	"CVTTPS2PL",
	"CVTTSD2SL",
	"CVTTSD2SQ",
	"CVTTSS2SL",
	"CVTTSS2SQ",
	"CWD",
	"CWDE",
	"DAA",
	"DAS",
	"DECB",
	"DECL",
	"DECQ",
	"DECW",
	"DIVB",
	"DIVL",
	"DIVPD",
	"DIVPS",
	"DIVQ",
	"DIVSD",
	"DIVSS",
	"DIVW",
	"DPPD",
	"DPPS",
	"EMMS",
	"ENTER",
	"EXTRACTPS",
	"F2XM1",
	"FABS",
	"FADDD",
	"FADDDP",
	"FADDF",

	INT	$0x80
	JAE	2(PC)
	NEGL	AX			// caller expects negative errno
	MOVL	AX, ret+12(FP)
	RET

TEXT runtime·usleep(SB),NOSPLIT,$24
	MOVL	$0, DX
	MOVL	usec+0(FP), AX
	MOVL	$1000000, CX
	DIVL	CX
	MOVL	AX, 12(SP)		// tv_sec - l32
	MOVL	$0, 16(SP)		// tv_sec - h32
	MOVL	$1000, AX
	MULL	DX
	MOVL	AX, 20(SP)		// tv_nsec

	MOVL	$0, 0(SP)
	LEAL	12(SP), AX
	MOVL	AX, 4(SP)		// arg 1 - rqtp