#define Y2L    V8
#define Y2H    V9
#define Z2L    V10
#define Z2H    V11

#define ONE   V18
#define IDX   V19
#define SEL1  V20
#define SEL2  V21
// func p256Select(point *p256Point, table *p256Table, idx int)
TEXT ·p256Select(SB), NOSPLIT, $0-24
	MOVD res+0(FP), P3ptr
	MOVD table+8(FP), P1ptr
	MOVD $16, R16
	MOVD $32, R17
	MOVD $48, R18
	MOVD $64, R19
	MOVD $80, R20

#undef Z2H
#undef ZER
#undef SEL1

// ---------------------------------------
// Constant time table access
// Indexed from 1 to 15, with -1 offset
// (index 0 is implicitly point at infinity)
// func p256Select(res *P256Point, table *p256Table, idx int)
#define P3ptr   R1
#define P1ptr   R2
#define COUNT   R4

#define X1L    V0
#define X1H    V1
#define Y1L    V2
#define Y1H    V3
#define Z1L    V4