/* sha1-armv7-neon.S - ARM/NEON accelerated SHA-1 transform function
*
* Copyright © 2013-2014 Jussi Kivilinna <jussi.kivilinna@iki.fi>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
#include <linux/linkage.h>
.syntax unified
.code 32
.fpu neon
.text
/* Context structure */
#define state_h0 0
#define state_h1 4
#define state_h2 8
#define state_h3 12
#define state_h4 16
/* Constants */
#define K1 0x5A827999
#define K2 0x6ED9EBA1
#define K3 0x8F1BBCDC
#define K4 0xCA62C1D6
.align 4
.LK_VEC:
.LK1: .long K1, K1, K1, K1
.LK2: .long K2, K2, K2, K2
.LK3: .long K3, K3, K3, K3
.LK4: .long K4, K4, K4, K4
/* Register macros */
#define RSTATE r0
#define RDATA r1
#define RNBLKS r2
#define ROLDSTACK r3
#define RWK lr
#define _a r4
#define _b r5
#define _c r6
#define _d r7
#define _e r8
#define RT0 r9
#define RT1 r10
#define RT2 r11
#define RT3 r12
#define W0 q0
#define W1 q1
#define W2 q2
#define W3 q3
#define W4 q4
#define W5 q5
#define W6 q6
#define W7 q7
#define tmp0 q8
#define tmp1 q9
#define tmp2 q10
#define tmp3 q11
#define qK1 q12
#define qK2 q13
#define qK3 q14
#define qK4 q15
/* Round function macros. */
#define WK_offs(i) (((i) & 15) * 4)
#define _R_F1(a,b,c,d,e,i,pre1,pre2,pre3,i16,\
W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
ldr RT3, [sp, WK_offs(i)]; \
pre1(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
bic RT0, d, b; \
add e, e, a, ror #(32 - 5); \
and RT1, c, b; \
pre2(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
add RT0, RT0, RT3; \
add e, e, RT1; \
ror b, #(32 - 30); \
pre3(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
add e, e, RT0;
#define _R_F2(a,b,c,d,e,i,pre1,pre2,pre3,i16,\
W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
ldr RT3, [sp, WK_offs(i)]; \
pre1(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
eor RT0, d, b; \
add e, e, a, ror #(32 - 5); \
eor RT0, RT0, c; \
pre2(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
add e, e, RT3; \
ror b, #(32 - 30); \
pre3(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
add e, e, RT0; \
#define _R_F3(a,b,c,d,e,i,pre1,pre2,pre3,i16,\
W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
ldr RT3, [sp, WK_offs(i)]; \
pre1(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
eor RT0, b, c; \
and RT1, b, c; \
add e, e, a, ror #(32 - 5); \
pre2(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
and RT0, RT0, d; \
add RT1, RT1, RT3; \
add e, e, RT0; \
ror b, #(32 - 30); \
pre3(i16,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28); \
add e, e, RT1;
#define _R_F4(a,b,c,d,e,i,pre1,pre2,pre3,i16,\
W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
_R_F2(a,b,c,d,e,i,pre1,pre2,pre3,i16,\
W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28)
#define _R(a,b,c,d,e,f,i,pre1,pre2,pre3,i16,\
W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
_R_##f(a,b,c,d,e,i,pre1,pre2,pre3,i16,\
W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28)
#define R(a,b,c,d,e,f,i) \
_R_##f(a,b,c,d,e,i,dummy,dummy,dummy,i16,\
W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28)
#define dummy(...)
/* Input expansion macros. */
/********* Precalc macros for rounds 0-15 *************************************/
#define W_PRECALC_00_15() \
add RWK, sp, #(WK_offs(0)); \
\
vld1.32 {tmp0, tmp1}, [RDATA]!; \
vrev32.8 W0, tmp0; /* big => little */ \
vld1.32 {tmp2, tmp3}, [RDATA]!; \
vadd.u32 tmp0, W0, curK; \
vrev32.8 W7, tmp1; /* big => little */ \
vrev32.8 W6, tmp2; /* big => little */ \
vadd.u32 tmp1, W7, curK; \
vrev32.8 W5, tmp3; /* big => little */ \
vadd.u32 tmp2, W6, curK; \
vst1.32 {tmp0, tmp1}, [RWK]!; \
vadd.u32 tmp3, W5, curK; \
vst1.32 {tmp2, tmp3}, [RWK]; \
#define WPRECALC_00_15_0(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vld1.32 {tmp0, tmp1}, [RDATA]!; \
#define WPRECALC_00_15_1(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
add RWK, sp, #(WK_offs(0)); \
#define WPRECALC_00_15_2(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vrev32.8 W0, tmp0; /* big => little */ \
#define WPRECALC_00_15_3(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vld1.32 {tmp2, tmp3}, [RDATA]!; \
#define WPRECALC_00_15_4(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vadd.u32 tmp0, W0, curK; \
#define WPRECALC_00_15_5(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vrev32.8 W7, tmp1; /* big => little */ \
#define WPRECALC_00_15_6(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vrev32.8 W6, tmp2; /* big => little */ \
#define WPRECALC_00_15_7(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vadd.u32 tmp1, W7, curK; \
#define WPRECALC_00_15_8(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vrev32.8 W5, tmp3; /* big => little */ \
#define WPRECALC_00_15_9(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vadd.u32 tmp2, W6, curK; \
#define WPRECALC_00_15_10(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vst1.32 {tmp0, tmp1}, [RWK]!; \
#define WPRECALC_00_15_11(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vadd.u32 tmp3, W5, curK; \
#define WPRECALC_00_15_12(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vst1.32 {tmp2, tmp3}, [RWK]; \
/********* Precalc macros for rounds 16-31 ************************************/
#define WPRECALC_16_31_0(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
veor tmp0, tmp0; \
vext.8 W, W_m16, W_m12, #8; \
#define WPRECALC_16_31_1(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
add RWK, sp, #(WK_offs(i)); \
vext.8 tmp0, W_m04, tmp0, #4; \
#define WPRECALC_16_31_2(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
veor tmp0, tmp0, W_m16; \
veor.32 W, W, W_m08; \
#define WPRECALC_16_31_3(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
veor tmp1, tmp1; \
veor W, W, tmp0; \
#define WPRECALC_16_31_4(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vshl.u32 tmp0, W, #1; \
#define WPRECALC_16_31_5(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vext.8 tmp1, tmp1, W, #(16-12); \
vshr.u32 W, W, #31; \
#define WPRECALC_16_31_6(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vorr tmp0, tmp0, W; \
vshr.u32 W, tmp1, #30; \
#define WPRECALC_16_31_7(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vshl.u32 tmp1, tmp1, #2; \
#define WPRECALC_16_31_8(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
veor tmp0, tmp0, W; \
#define WPRECALC_16_31_9(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
veor W, tmp0, tmp1; \
#define WPRECALC_16_31_10(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vadd.u32 tmp0, W, curK; \
#define WPRECALC_16_31_11(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vst1.32 {tmp0}, [RWK];
/********* Precalc macros for rounds 32-79 ************************************/
#define WPRECALC_32_79_0(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
veor W, W_m28; \
#define WPRECALC_32_79_1(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vext.8 tmp0, W_m08, W_m04, #8; \
#define WPRECALC_32_79_2(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
veor W, W_m16; \
#define WPRECALC_32_79_3(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
veor W, tmp0; \
#define WPRECALC_32_79_4(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
add RWK, sp, #(WK_offs(i&~3)); \
#define WPRECALC_32_79_5(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vshl.u32 tmp1, W, #2; \
#define WPRECALC_32_79_6(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vshr.u32 tmp0, W, #30; \
#define WPRECALC_32_79_7(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vorr W, tmp0, tmp1; \
#define WPRECALC_32_79_8(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vadd.u32 tmp0, W, curK; \
#define WPRECALC_32_79_9(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \
vst1.32 {tmp0}, [RWK];
/*
* Transform nblks*64 bytes (nblks*16 32-bit words) at DATA.
*
* unsigned int
* sha1_transform_neon (void *ctx, const unsigned char *data,
* unsigned int nblks)
*/
.align 3
ENTRY(sha1_transform_neon)
/* input:
* r0: ctx, CTX
* r1: data (64*nblks bytes)
* r2: nblks
*/
cmp RNBLKS, #0;
beq .Ldo_nothing;
push {r4-r12, lr};
/*vpush {q4-q7};*/
adr RT3, .LK_VEC;
mov ROLDSTACK, sp;
/* Align stack. */
sub RT0, sp, #(16*4);
and RT0, #(~(16-1));
mov sp, RT0;
vld1.32 {qK1-qK2}, [RT3]!; /* Load K1,K2 */
/* Get the values of the chaining variables. */
ldm RSTATE, {_a-_e};
vld1.32 {qK3-qK4}, [RT3]; /* Load K3,K4 */
#undef curK
#define curK qK1
/* Precalc 0-15. */
W_PRECALC_00_15();
.Loop:
/* Transform 0-15 + Precalc 16-31. */
_R( _a, _b, _c, _d, _e, F1, 0,
WPRECALC_16_31_0, WPRECALC_16_31_1, WPRECALC_16_31_2, 16,
W4, W5, W6, W7, W0, _, _, _ );
_R( _e, _a, _b, _c, _d, F1, 1,
WPRECALC_16_31_3, WPRECALC_16_31_4, WPRECALC_16_31_5, 16,
W4, W5, W6, W7, W0, _, _, _ );
_R( _d, _e, _a, _b, _c, F1, 2,
WPRECALC_16_31_6, WPRECALC_16_31_7, WPRECALC_16_31_8, 16,
W4, W5, W6, W7, W0, _, _, _ );
_R( _c, _d, _e, _a, _b, F1, 3,
WPRECALC_16_31_9, WPRECALC_16_31_10,WPRECALC_16_31_11,16,
W4, W5, W6, W7, W0, _, _, _ );
#undef curK
#define curK qK2
_R( _b, _c, _d, _e, _a, F1, 4,
WPRECALC_16_31_0, WPRECALC_16_31_1, WPRECALC_16_31_2, 20,
W3, W4, W5, W6, W7, _, _, _ );
_R( _a, _b, _c, _d, _e, F1, 5,
WPRECALC_16_31_3, WPRECALC_16_31_4, WPRECALC_16_31_5, 20,
W3, W4, W5, W6, W7, _, _, _ );
_R( _e, _a, _b, _c, _d, F1, 6,
WPRECALC_16_31_6, WPRECALC_16_31_7, WPRECALC_16_31_8, 20,
W3, W4, W5, W6, W7, _, _, _ );
_R( _d, _e, _a, _b, _c, F1, 7,
WPRECALC_16_31_9, WPRECALC_16_31_10,WPRECALC_16_31_11,20,
W3, W4, W5, W6, W7, _, _, _ );
_R( _c, _d, _e, _a, _b, F1, 8,
WPRECALC_16_31_0, WPRECALC_16_31_1, WPRECALC_16_31_2, 24,
W2, W3, W4, W5, W6, _, _, _ );
_R( _b, _c, _d, _e, _a, F1, 9,
WPRECALC_16_31_3, WPRECALC_16_31_4, WPRECALC_16_31_5, 24,
W2, W3, W4, W5, W6, _, _, _ );
_R( _a, _b, _c, _d, _e, F1, 10,
WPRECALC_16_31_6, WPRECALC_16_31_7, WPRECALC_16_31_8, 24,
W2, W3, W4, W5, W6, _, _, _ );
_R( _e, _a, _b, _c, _d, F1, 11,
WPRECALC_16_31_9, WPRECALC_16_31_10,WPRECALC_16_31_11,24,
W2, W3, W4, W5, W6, _, _, _ );
_R( _d, _e, _a, _b, _c, F1, 12,
WPRECALC_16_31_0, WPRECALC_16_31_1, WPRECALC_16_31_2, 28,
W1, W2, W3, W4, W5, _, _, _ );
_R( _c, _d, _e, _a, _b, F1, 13,
WPRECALC_16_31_3, WPRECALC_16_31_4, WPRECALC_16_31_5, 28,
W1, W2, W3, W4, W5, _, _, _ );
_R( _b, _c, _d, _e, _a, F1, 14,
WPRECALC_16_31_6, WPRECALC_16_31_7, WPRECALC_16_31_8, 28,
W1, W2, W3, W4, W5, _, _, _ );
_R( _a, _b, _c, _d, _e, F1, 15,
WPRECALC_16_31_9, WPRECALC_16_31_10,WPRECALC_16_31_11,28,
W1, W2, W3, W4, W5, _, _, _ );
/* Transform 16-63 + Precalc 32-79. */
_R( _e, _a, _b, _c, _d, F1, 16,
WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 32,
W0, W1, W2, W3, W4, W5, W6, W7);
_R( _d, _e, _a, _b, _c, F1, 17,
WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 32,
W0, W1, W2, W3, W4, W5, W6, W7);
_R( _c, _d, _e, _a, _b, F1, 18,
WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 32,
W0, W1, W2, W3, W4, W5, W6, W7);
_R( _b, _c, _d, _e, _a, F1, 19,
WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 32,
W0, W1, W2, W3, W4, W5, W6, W7);
_R( _a, _b, _c, _d, _e, F2, 20,
WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 36,
W7, W0, W1, W2, W3, W4, W5, W6);
_R( _e, _a, _b, _c, _d, F2, 21,
WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 36,
W7, W0, W1, W2, W3, W4, W5, W6);
_R( _d, _e, _a, _b, _c, F2, 22,
WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 36,
W7, W0, W1, W2, W3, W4, W5, W6);
_R( _c, _d, _e, _a, _b, F2, 23,
WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 36,
W7, W0, W1, W2, W3, W4, W5, W6);
#undef curK
#define curK qK3
_R( _b, _c, _d, _e, _a, F2, 24,
WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 40,
W6, W7, W0, W1, W2, W3, W4, W5);
_R( _a, _b, _c, _d, _e, F2, 25,
WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 40,
W6, W7, W0, W1, W2, W3, W4, W5);
_R( _e, _a, _b, _c, _d, F2, 26,
WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 40,
W6, W7, W0, W1, W2, W3, W4, W5);
_R( _d, _e, _a, _b, _c, F2, 27,
WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 40,
W6, W7, W0, W1, W2, W3, W4, W5);
_R( _c, _d, _e, _a, _b, F2, 28,
WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 44,
W5, W6, W7, W0, W1, W2, W3, W4);
_R( _b, _c, _d, _e, _a, F2, 29,
WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 44,
W5, W6, W7, W0, W1, W2, W3, W4);
_R( _a, _b, _c, _d, _e, F2, 30,
WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 44,
W5, W6, W7, W0, W1, W2, W3, W4);
_R( _e, _a, _b, _c, _d, F2, 31,
WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 44,
W5, W6, W7, W0, W1, W2, W3, W4);
_R( _d, _e, _a, _b, _c, F2, 32,
WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 48,
W4, W5, W6, W7, W0, W1, W2, W3);
_R( _c, _d, _e, _a, _b, F2, 33,
WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 48,
W4, W5, W6, W7, W0, W1, W2, W3);
_R( _b, _c, _d, _e, _a, F2, 34,
WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 48,
W4, W5, W6, W7, W0, W1, W2, W3);
_R( _a, _b, _c, _d, _e, F2, 35,
WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 48,
W4, W5, W6, W7, W0, W1, W2, W3);
_R( _e, _a, _b, _c, _d, F2, 36,
WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 52,
W3, W4, W5, W6, W7, W0, W1, W2);
_R( _d, _e, _a, _b, _c, F2, 37,
WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 52,
W3, W4, W5, W6, W7, W0, W1, W2);
_R( _c, _d, _e, _a, _b, F2, 38,
WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 52,
W3, W4, W5, W6, W7, W0, W1, W2);
_R( _b, _c, _d, _e, _a, F2, 39,
WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 52,
W3, W4, W5, W6, W7, W0, W1, W2);
_R( _a, _b, _c, _d, _e, F3, 40,
WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 56,
W2, W3, W4, W5, W6, W7, W0, W1);
_R( _e, _a, _b, _c, _d, F3, 41,
WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 56,
W2, W3, W4, W5, W6, W7, W0, W1);
_R( _d, _e, _a, _b, _c, F3, 42,
WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 56,
W2, W3, W4, W5, W6, W7, W0, W1);
_R( _c, _d, _e, _a, _b, F3, 43,
WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 56,
W2, W3, W4, W5, W6, W7, W0, W1);
#undef curK
#define curK qK4
_R( _b, _c, _d, _e, _a, F3, 44,
WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 60,
W1, W2, W3, W4, W5, W6, W7, W0);
_R( _a, _b, _c, _d, _e, F3, 45,
WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 60,
W1, W2, W3, W4, W5, W6, W7, W0);
_R( _e, _a, _b, _c, _d, F3, 46,
WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 60,
W1, W2, W3, W4, W5, W6, W7, W0);
_R( _d, _e, _a, _b, _c, F3, 47,
WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 60,
W1, W2, W3, W4, W5, W6, W7, W0);
_R( _c, _d, _e, _a, _b, F3, 48,
WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 64,
W0, W1, W2, W3, W4, W5, W6, W7);
_R( _b, _c, _d, _e, _a, F3, 49,
WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 64,
W0, W1, W2, W3, W4, W5, W6, W7);
_R( _a, _b, _c, _d, _e, F3, 50,
WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 64,
W0, W1, W2, W3, W4, W5, W6, W7);
_R( _e, _a, _b, _c, _d, F3, 51,
WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 64,
W0, W1, W2, W3, W4, W5, W6, W7);
_R( _d, _e, _a, _b, _c, F3, 52,
WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 68,
W7, W0, W1, W2, W3, W4, W5, W6);
_R( _c, _d, _e, _a, _b, F3, 53,
WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 68,
W7, W0, W1, W2, W3, W4, W5, W6);
_R( _b, _c, _d, _e, _a, F3, 54,
WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 68,
W7, W0, W1, W2, W3, W4, W5, W6);
_R( _a, _b, _c, _d, _e, F3, 55,
WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 68,
W7, W0, W1, W2, W3, W4, W5, W6);
_R( _e, _a, _b, _c, _d, F3, 56,
WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 72,
W6, W7, W0, W1, W2, W3, W4, W5);
_R( _d, _e, _a, _b, _c, F3, 57,
WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 72,
W6, W7, W0, W1, W2, W3, W4, W5);
_R( _c, _d, _e, _a, _b, F3, 58,
WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 72,
W6, W7, W0, W1, W2, W3, W4, W5);
_R( _b, _c, _d, _e, _a, F3, 59,
WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 72,
W6, W7, W0, W1, W2, W3, W4, W5);
subs RNBLKS, #1;
_R( _a, _b, _c, _d, _e, F4, 60,
WPRECALC_32_79_0, WPRECALC_32_79_1, WPRECALC_32_79_2, 76,
W5, W6, W7, W0, W1, W2, W3, W4);
_R( _e, _a, _b, _c, _d, F4, 61,
WPRECALC_32_79_3, WPRECALC_32_79_4, WPRECALC_32_79_5, 76,
W5, W6, W7, W0, W1, W2, W3, W4);
_R( _d, _e, _a, _b, _c, F4, 62,
WPRECALC_32_79_6, dummy, WPRECALC_32_79_7, 76,
W5, W6, W7, W0, W1, W2, W3, W4);
_R( _c, _d, _e, _a, _b, F4, 63,
WPRECALC_32_79_8, dummy, WPRECALC_32_79_9, 76,
W5, W6, W7, W0, W1, W2, W3, W4);
beq .Lend;
/* Transform 64-79 + Precalc 0-15 of next block. */
#undef curK
#define curK qK1
_R( _b, _c, _d, _e, _a, F4, 64,
WPRECALC_00_15_0, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _a, _b, _c, _d, _e, F4, 65,
WPRECALC_00_15_1, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _e, _a, _b, _c, _d, F4, 66,
WPRECALC_00_15_2, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _d, _e, _a, _b, _c, F4, 67,
WPRECALC_00_15_3, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _c, _d, _e, _a, _b, F4, 68,
dummy, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _b, _c, _d, _e, _a, F4, 69,
dummy, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _a, _b, _c, _d, _e, F4, 70,
WPRECALC_00_15_4, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _e, _a, _b, _c, _d, F4, 71,
WPRECALC_00_15_5, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _d, _e, _a, _b, _c, F4, 72,
dummy, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _c, _d, _e, _a, _b, F4, 73,
dummy, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _b, _c, _d, _e, _a, F4, 74,
WPRECALC_00_15_6, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _a, _b, _c, _d, _e, F4, 75,
WPRECALC_00_15_7, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _e, _a, _b, _c, _d, F4, 76,
WPRECALC_00_15_8, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _d, _e, _a, _b, _c, F4, 77,
WPRECALC_00_15_9, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _c, _d, _e, _a, _b, F4, 78,
WPRECALC_00_15_10, dummy, dummy, _, _, _, _, _, _, _, _, _ );
_R( _b, _c, _d, _e, _a, F4, 79,
WPRECALC_00_15_11, dummy, WPRECALC_00_15_12, _, _, _, _, _, _, _, _, _ );
/* Update the chaining variables. */
ldm RSTATE, {RT0-RT3};
add _a, RT0;
ldr RT0, [RSTATE, #state_h4];
add _b, RT1;
add _c, RT2;
add _d, RT3;
add _e, RT0;
stm RSTATE, {_a-_e};
b .Loop;
.Lend:
/* Transform 64-79 */
R( _b, _c, _d, _e, _a, F4, 64 );
R( _a, _b, _c, _d, _e, F4, 65 );
R( _e, _a, _b, _c, _d, F4, 66 );
R( _d, _e, _a, _b, _c, F4, 67 );
R( _c, _d, _e, _a, _b, F4, 68 );
R( _b, _c, _d, _e, _a, F4, 69 );
R( _a, _b, _c, _d, _e, F4, 70 );
R( _e, _a, _b, _c, _d, F4, 71 );
R( _d, _e, _a, _b, _c, F4, 72 );
R( _c, _d, _e, _a, _b, F4, 73 );
R( _b, _c, _d, _e, _a, F4, 74 );
R( _a, _b, _c, _d, _e, F4, 75 );
R( _e, _a, _b, _c, _d, F4, 76 );
R( _d, _e, _a, _b, _c, F4, 77 );
R( _c, _d, _e, _a, _b, F4, 78 );
R( _b, _c, _d, _e, _a, F4, 79 );
mov sp, ROLDSTACK;
/* Update the chaining variables. */
ldm RSTATE, {RT0-RT3};
add _a, RT0;
ldr RT0, [RSTATE, #state_h4];
add _b, RT1;
add _c, RT2;
add _d, RT3;
/*vpop {q4-q7};*/
add _e, RT0;
stm RSTATE, {_a-_e};
pop {r4-r12, pc};
.Ldo_nothing:
bx lr
ENDPROC(sha1_transform_neon)