MOVD    24(R8), R22       // R22 = x[i+2]
	MOVDU   32(R8), R23       // R23 = x[i+3]
	MULLD   R9, R20, R24      // R24 = z0[i]
	MULHDU  R9, R20, R20      // R20 = z1[i]
	ADDC    R4, R24           // R24 = z0[i] + c
	MULLD   R9, R21, R25
	MULHDU  R9, R21, R21
	ADDE    R20, R25
	MULLD   R9, R22, R26
	MULHDU  R9, R22, R22
	MULLD   R9, R23, R27
	MULHDU  R9, R23, R23
	ADDE    R21, R26
	MOVD    R24, 8(R10)       // z[i]

	MOVW	R2, 104(R29)
retry:
	MOVW	g_m(g), R1
	MOVW	m_p(R1), R1
	MOVW	(p_wbBuf+wbBuf_next)(R1), R2
	MOVW	(p_wbBuf+wbBuf_end)(R1), R23 // R23 is linker temp register
	// Increment wbBuf.next position.
	ADD	R25, R2
	// Is the buffer full?
	SGTU	R2, R23, R23
	BNE	R23, flush
	// Commit to the larger buffer.
	MOVW	R2, (p_wbBuf+wbBuf_next)(R1)
	// Make return value (the original next position)
	SUB	R25, R2, R25

TEXT runtime·panicSliceAlen<ABIInternal>(SB),NOSPLIT,$0-16
	MOVV	R21, R4
	MOVV	R23, R5
	JMP	runtime·goPanicSliceAlen<ABIInternal>(SB)
TEXT runtime·panicSliceAlenU<ABIInternal>(SB),NOSPLIT,$0-16
	MOVV	R21, R4
	MOVV	R23, R5
	JMP	runtime·goPanicSliceAlenU<ABIInternal>(SB)
TEXT runtime·panicSliceAcap<ABIInternal>(SB),NOSPLIT,$0-16
	MOVV	R21, R4
	MOVV	R23, R5
	JMP	runtime·goPanicSliceAcap<ABIInternal>(SB)

	SLD	$2,R19,R19	// p[5]*4:1
	MOVWZ	(R10)(R18),R22	// tab[1][p[6]]
	ADD	$1024,R10,R10	// tab[2]
	XOR	R21,R22,R21	// xor done R22
	CLRLSLDI $56,R9,$2,R20
	MOVWZ	(R10)(R19),R23	// tab[2][p[5]]
	ADD	$1024,R10,R10	// &tab[3]
	XOR	R21,R23,R21	// xor done R23
	MOVWZ	(R10)(R20),R24	// tab[3][p[4]]
	ADD 	$1024,R10,R10   // &tab[4]
	XOR	R21,R24,R21	// xor done R24
	MOVWZ	(R10)(R8),R25	// tab[4][crc>>24]
	RLDICL	$48,R7,$56,R24	// crc>>16&0xFF

	XOR	R0, R0
	CMP	R22, $0
	BEQ	good
	MOVD	48(R1), R22
	MOVD	$8, R20
	TW	$31, R0, R0

	BR	restore

good:
#define DEBUG_CALL_DISPATCH(NAME,MAXSIZE)	\
	MOVD	$MAXSIZE, R23;			\
	CMP	R26, R23;			\
	BGT	5(PC);				\
	MOVD	$NAME(SB), R26;			\
	MOVD	R26, 32(R1);			\
	CALL	runtime·debugCallWrap(SB);	\
	BR	restore

	// the argument frame size
	MOVD	128(R1), R26

	STP	(R12, R13), 11*8(RSP)
	STP	(R14, R15), 13*8(RSP)
	// R16, R17 may be clobbered by linker trampoline
	// R18 is unused.
	STP	(R19, R20), 15*8(RSP)
	STP	(R21, R22), 17*8(RSP)
	STP	(R23, R24), 19*8(RSP)
	STP	(R25, R26), 21*8(RSP)
	// R27 is temp register.
	// R28 is g.
	// R29 is frame pointer (unused).
	// R30 is LR, which was saved by the prologue.
	// R31 is SP.

				// if(g->panic != nil && g->panic->argp == FP) g->panic->argp = bottom-of-frame
				//
				//	MOVD g_panic(g), R22
				//	CMP R22, $0
				//	BEQ end
				//	MOVD panic_argp(R22), R23
				//	ADD $(autosize+8), R1, R24
				//	CMP R23, R24
				//	BNE end
				//	ADD $8, R1, R25
				//	MOVD R25, panic_argp(R22)
				// end:
				//	NOP
				//
				// The NOP is needed to give the jumps somewhere to land.

	"R5",
	"R6",
	"R7",
	"R8",
	"R9",
	"R10",
	"R11", // REGCTXT for closures
	"R12",
	"R13", // REGTLS
	"R14",
	"R15",
	"R16",
	"R17",
	"R18",
	"R19",
	"R20",
	"R21",
	"R22",
	"R23",
	"R24",
	"R25",
	"R26",
	"R27",
	"R28",
	"R29",
	"g",   // REGG.  Using name "g" and setting Config.hasGReg makes it "just happen".
	"R31", // REGTMP

	"F0",
	"F1",
	"F2",
	"F3",
	"F4",