VONE	V15
index49to64loop:
	VL	(R7), V4
	VL	16(R7), V5
	VL	32(R7), V6
	VLL	R0, 48(R7), V7
	VCEQG	V0, V4, V8
	VCEQG	V1, V5, V9
	VCEQG	V2, V6, V10
	VCEQG	V3, V7, V11
	VN	V8, V9, V12
	VN	V10, V11, V13
	VN	V12, V13, V14
	VCEQGS	V14, V15, V16
	BEQ	found
	MOVD	$1(R7), R7
	CMPBLE  R7, R2, index49to64loop
notfound:
	MOVD	$-1, (R5)
	RET

index65plus:
	// not implemented

	"VNC",
	"VAVG",
	"VAVGB",
	"VAVGH",
	"VAVGF",
	"VAVGG",
	"VAVGL",
	"VAVGLB",
	"VAVGLH",
	"VAVGLF",
	"VAVGLG",
	"VCKSM",
	"VCEQ",
	"VCEQB",
	"VCEQH",
	"VCEQF",
	"VCEQG",
	"VCEQBS",
	"VCEQHS",
	"VCEQFS",
	"VCEQGS",
	"VCH",
	"VCHB",
	"VCHH",
	"VCHF",
	"VCHG",
	"VCHBS",
	"VCHHS",
	"VCHFS",
	"VCHGS",
	"VCHL",
	"VCHLB",
	"VCHLH",

	VL   16(CPOOL), PL
	VL   0(CPOOL), PH

	VL   16(P1ptr), Y1H
	VPDI $0x4, Y1H, Y1H, Y1H
	VL   0(P1ptr), Y1L
	VPDI $0x4, Y1L, Y1L, Y1L

	VLREPG cond+8(FP), SEL1
	VZERO  ZER
	VCEQG  SEL1, ZER, SEL1

	VSCBIQ Y1L, PL, CAR1
	VSQ    Y1L, PL, T1L
	VSBIQ  PH, Y1H, CAR1, T1H

	VSEL Y1L, T1L, SEL1, Y1L
	VSEL Y1H, T1H, SEL1, Y1H

	VPDI $0x4, Y1H, Y1H, Y1H
	VST  Y1H, 16(P1ptr)

	// matter.

	LXVD2X (P1ptr+R0), X2H
	LXVD2X (P1ptr+R16), X2L
	LXVD2X (P1ptr+R17), Y2H
	LXVD2X (P1ptr+R18), Y2L
	LXVD2X (P1ptr+R19), Z2H
	LXVD2X (P1ptr+R20), Z2L

	VCMPEQUD SEL2, IDX, SEL1 // VCEQG SEL2, IDX, SEL1 OK

	// This will result in SEL1 being all 0s or 1s, meaning
	// the result is either X1L or X2L, no individual byte
	// selection.

	VSEL X1L, X2L, SEL1, X1L
	VSEL X1H, X2H, SEL1, X1H