JMP E1

L1:	MOVL (SI)(BX*4), AX
	ADDL DX, DX		// restore CF
	ADCL (CX)(BX*4), AX
	SBBL DX, DX		// save CF
	MOVL AX, (DI)(BX*4)
	ADDL $1, BX		// i++

E1:	CMPL BX, BP		// i < n
	JL L1

	NEGL DX
	MOVL DX, c+36(FP)
	RET


// func subVV(z, x, y []Word) (c Word)
// (same as addVV except for SBBL instead of ADCL and label names)
TEXT ·subVV(SB),NOSPLIT,$0
	MOVL z+0(FP), DI
	MOVL x+12(FP), SI

	MOVL	(_SYSTEM_TIME+time_hi2), DX
	CMPL	CX, DX
	JNE	wall

	// w = DX:AX
	// convert to Unix epoch (but still 100ns units)
	#define delta 116444736000000000
	SUBL	$(delta & 0xFFFFFFFF), AX
	SBBL $(delta >> 32), DX

	// nano/100 = DX:AX
	// split into two decimal halves by div 1e9.
	// (decimal point is two spots over from correct place,
	// but we avoid overflow in the high word.)
	MOVL	$1000000000, CX

		{name: "SBBL", argLength: 3, reg: gp2carry1, asm: "SBBL", resultInArg0: true, clobberFlags: true},                    // arg0-arg1-borrow(arg2), where arg2 is flags
		{name: "SBBLconst", argLength: 2, reg: gp1carry1, asm: "SBBL", aux: "Int32", resultInArg0: true, clobberFlags: true}, // arg0-auxint-borrow(arg1), where arg1 is flags

	"ROUNDSS",
	"RSM",
	"RSQRTPS",
	"RSQRTSS",
	"SAHF",
	"SALB",
	"SALL",
	"SALQ",
	"SALW",
	"SARB",
	"SARL",
	"SARQ",
	"SARW",
	"SARXL",
	"SARXQ",
	"SBBB",
	"SBBL",
	"SBBQ",
	"SBBW",
	"SCASB",
	"SCASL",
	"SCASQ",
	"SCASW",
	"SETCC",
	"SETCS",
	"SETEQ",
	"SETGE",
	"SETGT",
	"SETHI",
	"SETLE",
	"SETLS",
	"SETLT",
	"SETMI",

	SBBL DX, (BX)                           // 1913
	SBBL R11, (BX)                          // 44191b
	SBBL DX, (R11)                          // 411913
	SBBL R11, (R11)                         // 45191b
	SBBL DX, DX                             // 19d2 or 1bd2
	SBBL R11, DX                            // 4419da or 411bd3
	SBBL DX, R11                            // 4119d3 or 441bda

		{name: "SBBQcarrymask", argLength: 1, reg: flagsgp, asm: "SBBQ"}, // (int64)(-1) if carry is set, 0 if carry is clear.
		{name: "SBBLcarrymask", argLength: 1, reg: flagsgp, asm: "SBBL"}, // (int32)(-1) if carry is set, 0 if carry is clear.
		// Note: SBBW and SBBB are subsumed by SBBL

		{name: "SETEQ", argLength: 1, reg: readflags, asm: "SETEQ"}, // extract == condition from arg0

		v.AuxInt = int32ToAuxInt(d >> uint64(c))
		return true
	}
	return false
}
func rewriteValue386_Op386SBBL(v *Value) bool {
	v_2 := v.Args[2]
	v_1 := v.Args[1]
	v_0 := v.Args[0]
	// match: (SBBL x (MOVLconst [c]) f)
	// result: (SBBLconst [c] x f)
	for {
		x := v_0
		if v_1.Op != Op386MOVLconst {
			break
		}
		c := auxIntToInt32(v_1.AuxInt)
		f := v_2
		v.reset(Op386SBBLconst)

			inputs: []inputInfo{
				{0, 239}, // AX CX DX BX BP SI DI
			},
			outputs: []outputInfo{
				{1, 0},
				{0, 239}, // AX CX DX BX BP SI DI
			},
		},
	},
	{
		name:         "SBBL",
		argLen:       3,
		resultInArg0: true,
		clobberFlags: true,
		asm:          x86.ASBBL,
		reg: regInfo{
			inputs: []inputInfo{
				{0, 239}, // AX CX DX BX BP SI DI