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sha/asm/keccak1600-armv4.pl: improve non-NEON performance by ~10%.

This is achieved mostly by ~10% reduction of amount of instructions
per round thanks to a) switch to KECCAK_2X variant; b) merge of
almost 1/2 rotations with logical instructions. Performance is
improved on all observed processors except on Cortex-A15. This is
because it's capable of exploiting more parallelism and can execute
original code for same amount of time.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/4057)
master
Andy Polyakov 5 years ago
parent
commit
d9ca12cbf6
1 changed files with 388 additions and 352 deletions
  1. +388
    -352
      crypto/sha/asm/keccak1600-armv4.pl

+ 388
- 352
crypto/sha/asm/keccak1600-armv4.pl View File

@ -25,23 +25,41 @@
# register layout taken from Keccak Code Package. It's also as fast,
# in fact faster by 10-15% on some processors, and endian-neutral.
#
# August 2017.
#
# Switch to KECCAK_2X variant for non-NEON code and merge almost 1/2
# of rotate instructions with logical ones. This resulted in ~10%
# improvement on most processors. Switch to KECCAK_2X effectively
# minimizes re-loads from temporary storage, and merged rotates just
# eliminate corresponding instructions. As for latter. When examining
# code you'll notice commented ror instructions. These are eliminated
# ones, and you should trace destination register below to see what's
# going on. Just in case, why not all rotates are eliminated. Trouble
# is that you have operations that require both inputs to be rotated,
# e.g. 'eor a,b>>>x,c>>>y'. This conundrum is resolved by using
# 'eor a,b,c>>>(x-y)' and then merge-rotating 'a' in next operation
# that takes 'a' as input. And thing is that this next operation can
# be in next round. It's totally possible to "carry" rotate "factors"
# to the next round, but it makes code more complex. And the last word
# is the keyword, i.e. "almost 1/2" is kind of complexity cap [for the
# time being]...
#
########################################################################
# Numbers are cycles per processed byte. Non-NEON results account even
# for input bit interleaving.
#
# r=1600(*),NEON r=1088(**),NEON
# r=1088(*), NEON
#
# Cortex-A5 67/+130%, 24 96, 36
# Cortex-A7 60/+90%, 23 87, 34
# Cortex-A8 39/+220%, 20 56, 30
# Cortex-A9 41/+160%, 17 58, 26
# Cortex-A15 30/+65%, 12 41, 18
# Snapdragon S4 35/+120%, 16 50, 24
# ARM11xx 82/+150%
# Cortex-A5 88/+160%, 36
# Cortex-A7 78/+160%, 34
# Cortex-A8 51/+230%, 30
# Cortex-A9 53/+210%, 26
# Cortex-A15 42/+160%, 18
# Snapdragon S4 43/+210%, 24
#
# (*) Not used in real life, meaningful as estimate for single absorb
# operation performance. Percentage after slash is improvement
# over compiler-generated KECCAK_1X reference code.
# (**) Corresponds to SHA3-256, 8KB message size.
# (*) Corresponds to SHA3-256. Percentage after slash is improvement
# over compiler-generated KECCAK_2X reference code.
my @C = map("r$_",(0..9));
my @E = map("r$_",(10..12,14));
@ -55,18 +73,18 @@ my @E = map("r$_",(10..12,14));
# | uint64_t D[5] |
# | ... |
# +240->+-----------------------+
# | uint64_t T[2][5] |
# | uint64_t T[5][5] |
# | ... |
# +320->+-----------------------+
# +440->+-----------------------+
# | saved lr |
# +324->+-----------------------+
# +444->+-----------------------+
# | loop counter |
# +328->+-----------------------+
# +448->+-----------------------+
# | ...
my @A = map([ 8*$_, 8*($_+1), 8*($_+2), 8*($_+3), 8*($_+4) ], (0,5,10,15,20));
my @D = map(8*$_, (25..29));
my @T = map([ 8*$_, 8*($_+1), 8*($_+2), 8*($_+3), 8*($_+4) ], (30,35));
my @T = map([ 8*$_, 8*($_+1), 8*($_+2), 8*($_+3), 8*($_+4) ], (30,35,40,45,50));
$code.=<<___;
.text
@ -110,18 +128,24 @@ iotas32:
.type KeccakF1600_int, %function
.align 5
KeccakF1600_int:
ldmia sp,{@C[0]-@C[9]} @ A[0][0..4]
add @C[9],sp,#$A[4][2]
add @E[2],sp,#$A[0][0]
add @E[0],sp,#$A[1][0]
ldmia @C[9],{@C[4]-@C[9]} @ A[4][2..4]
KeccakF1600_enter:
str lr,[sp,#320]
str lr,[sp,#440]
eor @E[1],@E[1],@E[1]
str @E[1],[sp,#324]
b .Lround_enter
str @E[1],[sp,#444]
b .Lround
.align 4
.Lround:
ldmia sp,{@C[0]-@C[9]} @ A[0][0..4]
.Lround_enter:
___
sub Round {
my (@A,@R); (@A[0..4],@R) = @_;
$code.=<<___;
ldmia @E[2],{@C[0]-@C[3]} @ A[0][0..1]
ldmia @E[0],{@E[0]-@E[2],@E[3]} @ A[1][0..1]
eor @C[0],@C[0],@E[0]
add @E[0],sp,#$A[1][2]
@ -166,17 +190,19 @@ KeccakF1600_enter:
eor @C[7],@C[7],@E[3]
ldmia @E[0],{@E[0]-@E[2],@E[3]} @ A[3][4]..A[4][0]
eor @C[8],@C[8],@E[0]
add @E[0],sp,#$A[4][1]
ldr @E[0],[sp,#$A[4][1]] @ A[4][1]
eor @C[9],@C[9],@E[1]
ldr @E[1],[sp,#$A[4][1]+4]
eor @C[0],@C[0],@E[2]
ldr @E[2],[sp,#$A[0][2]] @ A[0][2]
eor @C[1],@C[1],@E[3]
ldmia @E[0],{@E[0]-@E[2],@E[3]} @ A[4][1..2]
ldr @E[3],[sp,#$A[0][2]+4]
eor @C[2],@C[2],@E[0]
add @E[0],sp,#$A[4][3]
add @E[0],sp,#$A[0][3]
eor @C[3],@C[3],@E[1]
eor @C[4],@C[4],@E[2]
eor @C[5],@C[5],@E[3]
ldmia @E[0],{@E[0]-@E[2],@E[3]} @ A[4][3..4]
ldmia @E[0],{@E[0]-@E[2],@E[3]} @ A[0][3..4]
eor @C[6],@C[6],@E[0]
eor @C[7],@C[7],@E[1]
eor @C[8],@C[8],@E[2]
@ -196,409 +222,419 @@ KeccakF1600_enter:
eor @C[2],@C[2],@C[7],ror#32-1 @ C[1] = ROL64(C[3], 1) ^ C[1];
str @C[1],[sp,#$D[0]+4]
eor @C[3],@C[3],@C[6]
ldr @C[7],[sp,#$A[3][3]]
str @C[2],[sp,#$D[2]] @ D[2] = C[1]
eor @C[4],@C[4],@C[9],ror#32-1 @ C[2] = ROL64(C[4], 1) ^ C[2];
ldr @C[6],[sp,#$A[3][3]+4]
str @C[3],[sp,#$D[2]+4]
eor @C[5],@C[5],@C[8]
ldr @C[8],[sp,#$A[3][0]]
ldr @C[9],[sp,#$A[3][0]+4]
str @C[4],[sp,#$D[3]] @ D[3] = C[2]
str @C[5],[sp,#$D[3]+4]
ldr @C[6],[sp,#$A[0][1]]
eor @C[8],@C[8],@C[0]
ldr @C[7],[sp,#$A[0][1]+4]
eor @C[9],@C[9],@C[1]
str @C[8],[sp,#$T[0][0]] @ T[0][0] = A[3][0] ^ C[0]; /* borrow T[0][0] */
ldr @C[8],[sp,#$A[0][2]]
str @C[9],[sp,#$T[0][0]+4]
ldr @C[9],[sp,#$A[0][2]+4]
eor @C[6],@C[6],@E[0]
eor @C[7],@C[7],@E[1]
str @C[6],[sp,#$T[0][1]] @ T[0][1] = A[0][1] ^ E[0]; /* D[1] */
ldr @C[6],[sp,#$A[0][3]]
str @C[7],[sp,#$T[0][1]+4]
ldr @C[7],[sp,#$A[0][3]+4]
eor @C[8],@C[8],@C[2]
eor @C[9],@C[9],@C[3]
str @C[8],[sp,#$T[0][2]] @ T[0][2] = A[0][2] ^ C[1]; /* D[2] */
ldr @C[8],[sp,#$A[0][4]]
str @C[9],[sp,#$T[0][2]+4]
ldr @C[9],[sp,#$A[0][4]+4]
eor @C[6],@C[6],@C[4]
eor @C[7],@C[7],@C[5]
str @C[6],[sp,#$T[0][3]] @ T[0][3] = A[0][3] ^ C[2]; /* D[3] */
eor @C[8],@C[8],@E[2]
str @C[7],[sp,#$T[0][3]+4]
eor @C[9],@C[9],@E[3]
ldr @C[6],[sp,#$A[3][3]]
ldr @C[7],[sp,#$A[3][3]+4]
str @C[8],[sp,#$T[0][4]] @ T[0][4] = A[0][4] ^ E[1]; /* D[4] */
str @C[9],[sp,#$T[0][4]+4]
ldr @C[8],[sp,#$A[4][4]]
eor @C[4],@C[4],@C[6]
ldr @C[9],[sp,#$A[4][4]+4]
eor @C[5],@C[5],@C[7]
ror @C[7],@C[4],#32-10 @ C[3] = ROL64(A[3][3] ^ C[2], rhotates[3][3]); /* D[3] */
str @C[4],[sp,#$D[3]] @ D[3] = C[2]
eor @C[7],@C[7],@C[4]
str @C[5],[sp,#$D[3]+4]
eor @C[6],@C[6],@C[5]
ldr @C[4],[sp,#$A[0][0]]
ror @C[6],@C[5],#32-11
ldr @C[5],[sp,#$A[0][0]+4]
@ ror @C[7],@C[7],#32-10 @ C[3] = ROL64(A[3][3] ^ C[2], rhotates[3][3]); /* D[3] */
@ ror @C[6],@C[6],#32-11
eor @C[8],@C[8],@E[2]
ldr @C[5],[sp,#$A[0][0]+4]
eor @C[9],@C[9],@E[3]
ror @C[8],@C[8],#32-7 @ C[4] = ROL64(A[4][4] ^ E[1], rhotates[4][4]); /* D[4] */
ldr @E[2],[sp,#$A[2][2]]
ror @C[9],@C[9],#32-7
ldr @E[3],[sp,#$A[2][2]+4]
eor @C[0],@C[0],@C[4]
ldr @E[3],[sp,#$A[2][2]+4]
@ ror @C[8],@C[8],#32-7 @ C[4] = ROL64(A[4][4] ^ E[1], rhotates[4][4]); /* D[4] */
@ ror @C[9],@C[9],#32-7
eor @C[1],@C[1],@C[5] @ C[0] = A[0][0] ^ C[0]; /* rotate by 0 */ /* D[0] */
eor @E[2],@E[2],@C[2]
ldr @C[2],[sp,#$A[1][1]]
eor @E[3],@E[3],@C[3]
ldr @C[3],[sp,#$A[1][1]+4]
ror @C[5],@E[2],#32-21 @ C[2] = ROL64(A[2][2] ^ C[1], rhotates[2][2]); /* D[2] */
ldr @E[2],[sp,#324] @ load counter
ldr @E[2],[sp,#444] @ load counter
eor @C[2],@C[2],@E[0]
adr @E[0],iotas32
ror @C[4],@E[3],#32-22
adr @E[3],iotas32
add @E[3],@E[0],@E[2]
eor @C[3],@C[3],@E[1]
ror @C[2],@C[2],#32-22 @ C[1] = ROL64(A[1][1] ^ E[0], rhotates[1][1]); /* D[1] */
add @E[3],@E[3],@E[2]
ror @C[3],@C[3],#32-22
ldr @E[0],[@E[3],#0] @ iotas[i].lo
add @E[2],@E[2],#8
ldr @E[1],[@E[3],#4] @ iotas[i].hi
___
$code.=<<___ if ($A[0][0] != $T[0][0]);
ldmia @E[3],{@E[0],@E[1]} @ iotas[i]
___
$code.=<<___ if ($A[0][0] == $T[0][0]);
ldr @E[0],[@E[3],#8] @ iotas[i].lo
add @E[2],@E[2],#16
ldr @E[1],[@E[3],#12] @ iotas[i].hi
cmp @E[2],#192
str @E[2],[sp,#324] @ store counter
bic @E[2],@C[4],@C[2]
bic @E[3],@C[5],@C[3]
str @E[2],[sp,#444] @ store counter
___
$code.=<<___;
bic @E[2],@C[4],@C[2],ror#32-22
bic @E[3],@C[5],@C[3],ror#32-22
ror @C[2],@C[2],#32-22 @ C[1] = ROL64(A[1][1] ^ E[0], rhotates[1][1]); /* D[1] */
ror @C[3],@C[3],#32-22
eor @E[2],@E[2],@C[0]
eor @E[3],@E[3],@C[1]
eor @E[0],@E[0],@E[2]
eor @E[1],@E[1],@E[3]
str @E[0],[sp,#$A[0][0]] @ A[0][0] = C[0] ^ (~C[1] & C[2]) ^ iotas[i];
bic @E[2],@C[6],@C[4]
str @E[1],[sp,#$A[0][0]+4]
bic @E[3],@C[7],@C[5]
eor @E[2],@E[2],@C[2]
eor @E[3],@E[3],@C[3]
str @E[2],[sp,#$A[0][1]] @ A[0][1] = C[1] ^ (~C[2] & C[3]);
bic @E[0],@C[8],@C[6]
str @E[3],[sp,#$A[0][1]+4]
bic @E[1],@C[9],@C[7]
eor @E[0],@E[0],@C[4]
eor @E[1],@E[1],@C[5]
str @E[0],[sp,#$A[0][2]] @ A[0][2] = C[2] ^ (~C[3] & C[4]);
bic @E[2],@C[0],@C[8]
str @E[1],[sp,#$A[0][2]+4]
bic @E[3],@C[1],@C[9]
eor @E[2],@E[2],@C[6]
eor @E[3],@E[3],@C[7]
str @E[2],[sp,#$A[0][3]] @ A[0][3] = C[3] ^ (~C[4] & C[0]);
str @E[0],[sp,#$R[0][0]] @ R[0][0] = C[0] ^ (~C[1] & C[2]) ^ iotas[i];
bic @E[2],@C[6],@C[4],ror#11
str @E[1],[sp,#$R[0][0]+4]
bic @E[3],@C[7],@C[5],ror#10
bic @E[0],@C[8],@C[6],ror#32-(11-7)
bic @E[1],@C[9],@C[7],ror#32-(10-7)
eor @E[2],@C[2],@E[2],ror#32-11
eor @E[3],@C[3],@E[3],ror#32-10
str @E[2],[sp,#$R[0][1]] @ R[0][1] = C[1] ^ (~C[2] & C[3]);
eor @E[0],@C[4],@E[0],ror#32-7
str @E[3],[sp,#$R[0][1]+4]
eor @E[1],@C[5],@E[1],ror#32-7
str @E[0],[sp,#$R[0][2]] @ R[0][2] = C[2] ^ (~C[3] & C[4]);
bic @E[2],@C[0],@C[8],ror#32-7
str @E[1],[sp,#$R[0][2]+4]
bic @E[3],@C[1],@C[9],ror#32-7
eor @E[2],@E[2],@C[6],ror#32-11
eor @E[3],@E[3],@C[7],ror#32-10
str @E[2],[sp,#$R[0][3]] @ R[0][3] = C[3] ^ (~C[4] & C[0]);
bic @E[0],@C[2],@C[0]
str @E[3],[sp,#$A[0][3]+4]
add @E[3],sp,#$D[0]
str @E[3],[sp,#$R[0][3]+4]
add @E[3],sp,#$D[3]
bic @E[1],@C[3],@C[1]
eor @E[0],@E[0],@C[8]
eor @E[1],@E[1],@C[9]
str @E[0],[sp,#$A[0][4]] @ A[0][4] = C[4] ^ (~C[0] & C[1]);
str @E[1],[sp,#$A[0][4]+4]
ldmia @E[3],{@C[6]-@C[9],@E[0],@E[1],@E[2],@E[3]} @ D[0..3]
ldr @C[0],[sp,#$A[1][0]]
ldr @C[1],[sp,#$A[1][0]+4]
ldr @C[2],[sp,#$A[2][1]]
ldr @C[3],[sp,#$A[2][1]+4]
ldr @C[4],[sp,#$D[4]]
eor @C[0],@C[0],@C[6]
ldr @C[5],[sp,#$D[4]+4]
eor @C[1],@C[1],@C[7]
str @C[0],[sp,#$T[1][0]] @ T[1][0] = A[1][0] ^ (C[3] = D[0]);
add @C[0],sp,#$A[1][2]
str @C[1],[sp,#$T[1][0]+4]
eor @C[2],@C[2],@C[8]
eor @C[3],@C[3],@C[9]
str @C[2],[sp,#$T[1][1]] @ T[1][1] = A[2][1] ^ (C[4] = D[1]); /* borrow T[1][1] */
str @C[3],[sp,#$T[1][1]+4]
ldmia @C[0],{@C[0]-@C[3]} @ A[1][2..3]
ldr @C[0],[sp,#$A[0][3]] @ A[0][3]
eor @E[0],@E[0],@C[8],ror#32-7
ldr @C[1],[sp,#$A[0][3]+4]
eor @E[1],@E[1],@C[9],ror#32-7
str @E[0],[sp,#$R[0][4]] @ R[0][4] = C[4] ^ (~C[0] & C[1]);
add @C[9],sp,#$D[0]
str @E[1],[sp,#$R[0][4]+4]
ldmia @E[3],{@E[0]-@E[2],@E[3]} @ D[3..4]
ldmia @C[9],{@C[6]-@C[9]} @ D[0..1]
ldr @C[2],[sp,#$A[1][4]] @ A[1][4]
eor @C[0],@C[0],@E[0]
ldr @C[3],[sp,#$A[1][4]+4]
eor @C[1],@C[1],@E[1]
str @C[0],[sp,#$T[1][2]] @ T[1][2] = A[1][2] ^ (E[0] = D[2]);
ldr @C[0],[sp,#$A[2][4]]
str @C[1],[sp,#$T[1][2]+4]
ldr @C[1],[sp,#$A[2][4]+4]
@ ror @C[0],@C[0],#32-14 @ C[0] = ROL64(A[0][3] ^ D[3], rhotates[0][3]);
ldr @E[0],[sp,#$A[3][1]] @ A[3][1]
@ ror @C[1],@C[1],#32-14
ldr @E[1],[sp,#$A[3][1]+4]
eor @C[2],@C[2],@E[2]
ldr @C[4],[sp,#$A[2][0]] @ A[2][0]
eor @C[3],@C[3],@E[3]
str @C[2],[sp,#$T[1][3]] @ T[1][3] = A[1][3] ^ (E[1] = D[3]);
ldr @C[2],[sp,#$T[0][3]]
str @C[3],[sp,#$T[1][3]+4]
ldr @C[3],[sp,#$T[0][3]+4]
eor @C[0],@C[0],@C[4]
ldr @E[2],[sp,#$A[1][4]]
eor @C[1],@C[1],@C[5]
ldr @E[3],[sp,#$A[1][4]+4]
str @C[0],[sp,#$T[1][4]] @ T[1][4] = A[2][4] ^ (C[2] = D[4]); /* borrow T[1][4] */
ror @C[0],@C[2],#32-14 @ C[0] = ROL64(T[0][3], rhotates[0][3]);
str @C[1],[sp,#$T[1][4]+4]
ror @C[1],@C[3],#32-14
eor @C[2],@E[2],@C[4]
ldr @C[4],[sp,#$A[2][0]]
eor @C[3],@E[3],@C[5]
ldr @C[5],[sp,#$A[2][0]+4]
ror @C[2],@C[2],#32-10 @ C[1] = ROL64(A[1][4] ^ C[2], rhotates[1][4]); /* D[4] */
ldr @E[2],[sp,#$A[3][1]]
ror @C[3],@C[3],#32-10
ldr @E[3],[sp,#$A[3][1]+4]
@ ror @C[2],@C[2],#32-10 @ C[1] = ROL64(A[1][4] ^ D[4], rhotates[1][4]);
@ ror @C[3],@C[3],#32-10
eor @C[6],@C[6],@C[4]
ldr @E[2],[sp,#$D[2]] @ D[2]
eor @C[7],@C[7],@C[5]
ror @C[5],@C[6],#32-1 @ C[2] = ROL64(A[2][0] ^ C[3], rhotates[2][0]); /* D[0] */
eor @E[2],@E[2],@C[8]
ldr @E[3],[sp,#$D[2]+4]
ror @C[5],@C[6],#32-1 @ C[2] = ROL64(A[2][0] ^ D[0], rhotates[2][0]);
ror @C[4],@C[7],#32-2
ldr @C[8],[sp,#$A[4][2]]
eor @E[3],@E[3],@C[9]
ldr @C[9],[sp,#$A[4][2]+4]
ror @C[7],@E[2],#32-22 @ C[3] = ROL64(A[3][1] ^ C[4], rhotates[3][1]); /* D[1] */
eor @E[0],@E[0],@C[8]
ror @C[6],@E[3],#32-23
ldr @C[8],[sp,#$A[4][2]] @ A[4][2]
eor @E[1],@E[1],@C[9]
ror @C[9],@E[0],#32-30 @ C[4] = ROL64(A[4][2] ^ E[0], rhotates[4][2]); /* D[2] */
bic @E[0],@C[4],@C[2]
ror @C[8],@E[1],#32-31
bic @E[1],@C[5],@C[3]
eor @E[0],@E[0],@C[0]
eor @E[1],@E[1],@C[1]
str @E[0],[sp,#$A[1][0]] @ A[1][0] = C[0] ^ (~C[1] & C[2])
ldr @C[9],[sp,#$A[4][2]+4]
ror @C[7],@E[0],#32-22 @ C[3] = ROL64(A[3][1] ^ D[1], rhotates[3][1]);
ror @C[6],@E[1],#32-23
bic @E[0],@C[4],@C[2],ror#32-10
bic @E[1],@C[5],@C[3],ror#32-10
eor @E[2],@E[2],@C[8]
eor @E[3],@E[3],@C[9]
ror @C[9],@E[2],#32-30 @ C[4] = ROL64(A[4][2] ^ D[2], rhotates[4][2]);
ror @C[8],@E[3],#32-31
eor @E[0],@E[0],@C[0],ror#32-14
eor @E[1],@E[1],@C[1],ror#32-14
str @E[0],[sp,#$R[1][0]] @ R[1][0] = C[0] ^ (~C[1] & C[2])
bic @E[2],@C[6],@C[4]
str @E[1],[sp,#$A[1][0]+4]
str @E[1],[sp,#$R[1][0]+4]
bic @E[3],@C[7],@C[5]
eor @E[2],@E[2],@C[2]
eor @E[3],@E[3],@C[3]
str @E[2],[sp,#$A[1][1]] @ A[1][1] = C[1] ^ (~C[2] & C[3]);
eor @E[2],@E[2],@C[2],ror#32-10
eor @E[3],@E[3],@C[3],ror#32-10
str @E[2],[sp,#$R[1][1]] @ R[1][1] = C[1] ^ (~C[2] & C[3]);
bic @E[0],@C[8],@C[6]
str @E[3],[sp,#$A[1][1]+4]
str @E[3],[sp,#$R[1][1]+4]
bic @E[1],@C[9],@C[7]
bic @E[2],@C[0],@C[8],ror#14
bic @E[3],@C[1],@C[9],ror#14
eor @E[0],@E[0],@C[4]
eor @E[1],@E[1],@C[5]
str @E[0],[sp,#$A[1][2]] @ A[1][2] = C[2] ^ (~C[3] & C[4]);
bic @E[2],@C[0],@C[8]
str @E[1],[sp,#$A[1][2]+4]
bic @E[3],@C[1],@C[9]
eor @E[2],@E[2],@C[6]
eor @E[3],@E[3],@C[7]
str @E[2],[sp,#$A[1][3]] @ A[1][3] = C[3] ^ (~C[4] & C[0]);
bic @E[0],@C[2],@C[0]
str @E[3],[sp,#$A[1][3]+4]
add @E[3],sp,#$D[3]
bic @E[1],@C[3],@C[1]
ldr @C[1],[sp,#$T[0][1]]
str @E[0],[sp,#$R[1][2]] @ R[1][2] = C[2] ^ (~C[3] & C[4]);
bic @E[0],@C[2],@C[0],ror#32-(14-10)
eor @E[2],@C[6],@E[2],ror#32-14
str @E[1],[sp,#$R[1][2]+4]
bic @E[1],@C[3],@C[1],ror#32-(14-10)
eor @E[3],@C[7],@E[3],ror#32-14
str @E[2],[sp,#$R[1][3]] @ R[1][3] = C[3] ^ (~C[4] & C[0]);
add @E[2],sp,#$D[1]
str @E[3],[sp,#$R[1][3]+4]
ldr @C[1],[sp,#$A[0][1]] @ A[0][1]
eor @E[0],@C[8],@E[0],ror#32-10
ldr @C[0],[sp,#$A[0][1]+4]
eor @E[1],@C[9],@E[1],ror#32-10
str @E[0],[sp,#$R[1][4]] @ R[1][4] = C[4] ^ (~C[0] & C[1]);
add @C[9],sp,#$D[3]
str @E[1],[sp,#$R[1][4]+4]
ldmia @E[2],{@E[0]-@E[2],@E[3]} @ D[1..2]
ldr @C[2],[sp,#$A[1][2]] @ A[1][2]
ldr @C[3],[sp,#$A[1][2]+4]
ldmia @C[9],{@C[6]-@C[9]} @ D[3..4]
eor @C[1],@C[1],@E[0]
ldr @C[4],[sp,#$A[2][3]] @ A[2][3]
eor @C[0],@C[0],@E[1]
ldr @C[5],[sp,#$A[2][3]+4]
ror @C[0],@C[0],#32-1 @ C[0] = ROL64(A[0][1] ^ D[1], rhotates[0][1]);
eor @C[2],@C[2],@E[2]
ldr @E[0],[sp,#$A[3][4]] @ A[3][4]
eor @C[3],@C[3],@E[3]
ldr @E[1],[sp,#$A[3][4]+4]
@ ror @C[2],@C[2],#32-3 @ C[1] = ROL64(A[1][2] ^ D[2], rhotates[1][2]);
ldr @E[2],[sp,#$D[0]] @ D[0]
@ ror @C[3],@C[3],#32-3
ldr @E[3],[sp,#$D[0]+4]
eor @C[4],@C[4],@C[6]
eor @C[5],@C[5],@C[7]
@ ror @C[5],@C[6],#32-12 @ C[2] = ROL64(A[2][3] ^ D[3], rhotates[2][3]);
@ ror @C[4],@C[7],#32-13 @ [track reverse order below]
eor @E[0],@E[0],@C[8]
ldr @C[0],[sp,#$T[0][1]+4]
ldr @C[8],[sp,#$A[4][0]] @ A[4][0]
eor @E[1],@E[1],@C[9]
str @E[0],[sp,#$A[1][4]] @ A[1][4] = C[4] ^ (~C[0] & C[1]);
str @E[1],[sp,#$A[1][4]+4]
ldr @C[2],[sp,#$T[1][2]]
ldr @C[3],[sp,#$T[1][2]+4]
ldmia @E[3],{@E[0]-@E[2],@E[3]} @ D[3..4]
ldr @C[4],[sp,#$A[2][3]]
ror @C[0],@C[0],#32-1 @ C[0] = ROL64(T[0][1], rhotates[0][1]);
ldr @C[5],[sp,#$A[2][3]+4]
ror @C[2],@C[2],#32-3 @ C[1] = ROL64(T[1][2], rhotates[1][2]);
ldr @C[6],[sp,#$A[3][4]]
ror @C[3],@C[3],#32-3
ldr @C[7],[sp,#$A[3][4]+4]
eor @E[0],@E[0],@C[4]
ldr @C[8],[sp,#$A[4][0]]
eor @E[1],@E[1],@C[5]
ldr @C[9],[sp,#$A[4][0]+4]
ror @C[5],@E[0],#32-12 @ C[2] = ROL64(A[2][3] ^ D[3], rhotates[2][3]);
ldr @E[0],[sp,#$D[0]]
ror @C[4],@E[1],#32-13
ldr @E[1],[sp,#$D[0]+4]
eor @C[6],@C[6],@E[2]
eor @C[7],@C[7],@E[3]
ror @C[6],@C[6],#32-4 @ C[3] = ROL64(A[3][4] ^ D[4], rhotates[3][4]);
eor @C[8],@C[8],@E[0]
ror @C[7],@C[7],#32-4
eor @C[9],@C[9],@E[1]
ror @C[8],@C[8],#32-9 @ C[4] = ROL64(A[4][0] ^ D[0], rhotates[4][0]);
ror @C[6],@E[0],#32-4 @ C[3] = ROL64(A[3][4] ^ D[4], rhotates[3][4]);
ror @C[7],@E[1],#32-4
bic @E[0],@C[4],@C[2]
ror @C[9],@C[9],#32-9
bic @E[1],@C[5],@C[3]
eor @E[0],@E[0],@C[0]
eor @E[1],@E[1],@C[1]
str @E[0],[sp,#$A[2][0]] @ A[2][0] = C[0] ^ (~C[1] & C[2])
bic @E[2],@C[6],@C[4]
str @E[1],[sp,#$A[2][0]+4]
bic @E[3],@C[7],@C[5]
eor @E[2],@E[2],@C[2]
eor @E[3],@E[3],@C[3]
str @E[2],[sp,#$A[2][1]] @ A[2][1] = C[1] ^ (~C[2] & C[3]);
eor @E[2],@E[2],@C[8]
eor @E[3],@E[3],@C[9]
ror @C[8],@E[2],#32-9 @ C[4] = ROL64(A[4][0] ^ D[0], rhotates[4][0]);
ror @C[9],@E[3],#32-9
bic @E[0],@C[5],@C[2],ror#13-3
bic @E[1],@C[4],@C[3],ror#12-3
bic @E[2],@C[6],@C[5],ror#32-13
bic @E[3],@C[7],@C[4],ror#32-12
eor @E[0],@C[0],@E[0],ror#32-13
eor @E[1],@C[1],@E[1],ror#32-12
str @E[0],[sp,#$R[2][0]] @ R[2][0] = C[0] ^ (~C[1] & C[2])
eor @E[2],@E[2],@C[2],ror#32-3
str @E[1],[sp,#$R[2][0]+4]
eor @E[3],@E[3],@C[3],ror#32-3
str @E[2],[sp,#$R[2][1]] @ R[2][1] = C[1] ^ (~C[2] & C[3]);
bic @E[0],@C[8],@C[6]
str @E[3],[sp,#$A[2][1]+4]
str @E[3],[sp,#$R[2][1]+4]
bic @E[1],@C[9],@C[7]
eor @E[0],@E[0],@C[4]
eor @E[1],@E[1],@C[5]
str @E[0],[sp,#$A[2][2]] @ A[2][2] = C[2] ^ (~C[3] & C[4]);
eor @E[0],@E[0],@C[5],ror#32-13
eor @E[1],@E[1],@C[4],ror#32-12
str @E[0],[sp,#$R[2][2]] @ R[2][2] = C[2] ^ (~C[3] & C[4]);
bic @E[2],@C[0],@C[8]
str @E[1],[sp,#$A[2][2]+4]
str @E[1],[sp,#$R[2][2]+4]
bic @E[3],@C[1],@C[9]
eor @E[2],@E[2],@C[6]
eor @E[3],@E[3],@C[7]
str @E[2],[sp,#$A[2][3]] @ A[2][3] = C[3] ^ (~C[4] & C[0]);
bic @E[0],@C[2],@C[0]
str @E[3],[sp,#$A[2][3]+4]
bic @E[1],@C[3],@C[1]
str @E[2],[sp,#$R[2][3]] @ R[2][3] = C[3] ^ (~C[4] & C[0]);
bic @E[0],@C[2],@C[0],ror#3
str @E[3],[sp,#$R[2][3]+4]
bic @E[1],@C[3],@C[1],ror#3
ldr @C[1],[sp,#$A[0][4]] @ A[0][4] [in reverse order]
eor @E[0],@C[8],@E[0],ror#32-3
ldr @C[0],[sp,#$A[0][4]+4]
eor @E[1],@C[9],@E[1],ror#32-3
str @E[0],[sp,#$R[2][4]] @ R[2][4] = C[4] ^ (~C[0] & C[1]);
add @C[9],sp,#$D[1]
str @E[1],[sp,#$R[2][4]+4]
ldr @E[0],[sp,#$D[4]] @ D[4]
ldr @E[1],[sp,#$D[4]+4]
ldr @E[2],[sp,#$D[0]] @ D[0]
ldr @E[3],[sp,#$D[0]+4]
ldmia @C[9],{@C[6]-@C[9]} @ D[1..2]
eor @C[1],@C[1],@E[0]
ldr @C[2],[sp,#$A[1][0]] @ A[1][0]
eor @C[0],@C[0],@E[1]
ldr @C[3],[sp,#$A[1][0]+4]
@ ror @C[1],@E[0],#32-13 @ C[0] = ROL64(A[0][4] ^ D[4], rhotates[0][4]);
ldr @C[4],[sp,#$A[2][1]] @ A[2][1]
@ ror @C[0],@E[1],#32-14 @ [was loaded in reverse order]
ldr @C[5],[sp,#$A[2][1]+4]
eor @C[2],@C[2],@E[2]
ldr @E[0],[sp,#$A[3][2]] @ A[3][2]
eor @C[3],@C[3],@E[3]
ldr @E[1],[sp,#$A[3][2]+4]
@ ror @C[2],@C[2],#32-18 @ C[1] = ROL64(A[1][0] ^ D[0], rhotates[1][0]);
ldr @E[2],[sp,#$D[3]] @ D[3]
@ ror @C[3],@C[3],#32-18
ldr @E[3],[sp,#$D[3]+4]
eor @C[6],@C[6],@C[4]
eor @C[7],@C[7],@C[5]
ror @C[4],@C[6],#32-5 @ C[2] = ROL64(A[2][1] ^ D[1], rhotates[2][1]);
ror @C[5],@C[7],#32-5
eor @E[0],@E[0],@C[8]
ldr @C[8],[sp,#$A[4][3]] @ A[4][3]
eor @E[1],@E[1],@C[9]
str @E[0],[sp,#$A[2][4]] @ A[2][4] = C[4] ^ (~C[0] & C[1]);
add @C[2],sp,#$T[1][0]
str @E[1],[sp,#$A[2][4]+4]
add @E[3],sp,#$D[2]
ldr @C[1],[sp,#$T[0][4]]
ldr @C[0],[sp,#$T[0][4]+4]
ldmia @C[2],{@C[2]-@C[5]} @ T[1][0..1]
ldmia @E[3],{@E[0]-@E[2],@E[3]} @ D[2..3]
ror @C[1],@C[1],#32-13 @ C[0] = ROL64(T[0][4], rhotates[0][4]);
ldr @C[6],[sp,#$A[3][2]]
ror @C[0],@C[0],#32-14
ldr @C[7],[sp,#$A[3][2]+4]
ror @C[2],@C[2],#32-18 @ C[1] = ROL64(T[1][0], rhotates[1][0]);
ldr @C[8],[sp,#$A[4][3]]
ror @C[3],@C[3],#32-18
ldr @C[9],[sp,#$A[4][3]+4]
ror @C[4],@C[4],#32-5 @ C[2] = ROL64(T[1][1], rhotates[2][1]); /* originally A[2][1] */
eor @E[0],@E[0],@C[6]
ror @C[5],@C[5],#32-5
eor @E[1],@E[1],@C[7]
ror @C[7],@E[0],#32-7 @ C[3] = ROL64(A[3][2] ^ D[2], rhotates[3][2]);
eor @C[8],@C[8],@E[2]
ror @C[6],@E[1],#32-8
eor @C[9],@C[9],@E[3]
ror @C[8],@C[8],#32-28 @ C[4] = ROL64(A[4][3] ^ D[3], rhotates[4][3]);
bic @E[0],@C[4],@C[2]
ror @C[9],@C[9],#32-28
bic @E[1],@C[5],@C[3]
eor @E[0],@E[0],@C[0]
eor @E[1],@E[1],@C[1]
str @E[0],[sp,#$A[3][0]] @ A[3][0] = C[0] ^ (~C[1] & C[2])
eor @E[2],@E[2],@C[8]
eor @E[3],@E[3],@C[9]
ror @C[8],@E[2],#32-28 @ C[4] = ROL64(A[4][3] ^ D[3], rhotates[4][3]);
ror @C[9],@E[3],#32-28
bic @E[0],@C[4],@C[2],ror#32-18
bic @E[1],@C[5],@C[3],ror#32-18
eor @E[0],@E[0],@C[0],ror#32-14
eor @E[1],@E[1],@C[1],ror#32-13
str @E[0],[sp,#$R[3][0]] @ R[3][0] = C[0] ^ (~C[1] & C[2])
bic @E[2],@C[6],@C[4]
str @E[1],[sp,#$A[3][0]+4]
str @E[1],[sp,#$R[3][0]+4]
bic @E[3],@C[7],@C[5]
eor @E[2],@E[2],@C[2]
eor @E[3],@E[3],@C[3]
str @E[2],[sp,#$A[3][1]] @ A[3][1] = C[1] ^ (~C[2] & C[3]);
eor @E[2],@E[2],@C[2],ror#32-18
eor @E[3],@E[3],@C[3],ror#32-18
str @E[2],[sp,#$R[3][1]] @ R[3][1] = C[1] ^ (~C[2] & C[3]);
bic @E[0],@C[8],@C[6]
str @E[3],[sp,#$A[3][1]+4]
str @E[3],[sp,#$R[3][1]+4]
bic @E[1],@C[9],@C[7]
bic @E[2],@C[0],@C[8],ror#14
bic @E[3],@C[1],@C[9],ror#13
eor @E[0],@E[0],@C[4]
eor @E[1],@E[1],@C[5]
str @E[0],[sp,#$A[3][2]] @ A[3][2] = C[2] ^ (~C[3] & C[4]);
bic @E[2],@C[0],@C[8]
str @E[1],[sp,#$A[3][2]+4]
bic @E[3],@C[1],@C[9]
eor @E[2],@E[2],@C[6]
eor @E[3],@E[3],@C[7]
str @E[2],[sp,#$A[3][3]] @ A[3][3] = C[3] ^ (~C[4] & C[0]);
bic @E[0],@C[2],@C[0]
str @E[3],[sp,#$A[3][3]+4]
bic @E[1],@C[3],@C[1]
str @E[0],[sp,#$R[3][2]] @ R[3][2] = C[2] ^ (~C[3] & C[4]);
bic @E[0],@C[2],@C[0],ror#18-14
eor @E[2],@C[6],@E[2],ror#32-14
str @E[1],[sp,#$R[3][2]+4]
bic @E[1],@C[3],@C[1],ror#18-13
eor @E[3],@C[7],@E[3],ror#32-13
str @E[2],[sp,#$R[3][3]] @ R[3][3] = C[3] ^ (~C[4] & C[0]);
str @E[3],[sp,#$R[3][3]+4]
add @E[3],sp,#$D[2]
ldr @C[0],[sp,#$A[0][2]] @ A[0][2]
eor @E[0],@C[8],@E[0],ror#32-18
ldr @C[1],[sp,#$A[0][2]+4]
eor @E[1],@C[9],@E[1],ror#32-18
str @E[0],[sp,#$R[3][4]] @ R[3][4] = C[4] ^ (~C[0] & C[1]);
str @E[1],[sp,#$R[3][4]+4]
ldmia @E[3],{@E[0]-@E[2],@E[3]} @ D[2..3]
ldr @C[2],[sp,#$A[1][3]] @ A[1][3]
ldr @C[3],[sp,#$A[1][3]+4]
ldr @C[6],[sp,#$D[4]] @ D[4]
ldr @C[7],[sp,#$D[4]+4]
eor @C[0],@C[0],@E[0]
ldr @C[4],[sp,#$A[2][4]] @ A[2][4]
eor @C[1],@C[1],@E[1]
ldr @C[5],[sp,#$A[2][4]+4]
@ ror @C[0],@C[0],#32-31 @ C[0] = ROL64(A[0][2] ^ D[2], rhotates[0][2]);
ldr @C[8],[sp,#$D[0]] @ D[0]
@ ror @C[1],@C[1],#32-31
ldr @C[9],[sp,#$D[0]+4]
eor @E[2],@E[2],@C[2]
ldr @E[0],[sp,#$A[3][0]] @ A[3][0]
eor @E[3],@E[3],@C[3]
ldr @E[1],[sp,#$A[3][0]+4]
ror @C[3],@E[2],#32-27 @ C[1] = ROL64(A[1][3] ^ D[3], rhotates[1][3]);
ldr @E[2],[sp,#$D[1]] @ D[1]
ror @C[2],@E[3],#32-28
ldr @E[3],[sp,#$D[1]+4]
eor @C[6],@C[6],@C[4]
eor @C[7],@C[7],@C[5]
ror @C[5],@C[6],#32-19 @ C[2] = ROL64(A[2][4] ^ D[4], rhotates[2][4]);
ror @C[4],@C[7],#32-20
eor @E[0],@E[0],@C[8]
ldr @C[8],[sp,#$A[4][1]] @ A[4][1]
eor @E[1],@E[1],@C[9]
str @E[0],[sp,#$A[3][4]] @ A[3][4] = C[4] ^ (~C[0] & C[1]);
add @E[3],sp,#$T[1][3]
str @E[1],[sp,#$A[3][4]+4]
ldr @C[0],[sp,#$T[0][2]]
ldr @C[1],[sp,#$T[0][2]+4]
ldmia @E[3],{@E[0]-@E[2],@E[3]} @ T[1][3..4]
ldr @C[7],[sp,#$T[0][0]]
ror @C[0],@C[0],#32-31 @ C[0] = ROL64(T[0][2], rhotates[0][2]);
ldr @C[6],[sp,#$T[0][0]+4]
ror @C[1],@C[1],#32-31
ldr @C[8],[sp,#$A[4][1]]
ror @C[3],@E[0],#32-27 @ C[1] = ROL64(T[1][3], rhotates[1][3]);
ldr @E[0],[sp,#$D[1]]
ror @C[2],@E[1],#32-28
ldr @C[9],[sp,#$A[4][1]+4]
ror @C[5],@E[2],#32-19 @ C[2] = ROL64(T[1][4], rhotates[2][4]); /* originally A[2][4] */
ldr @E[1],[sp,#$D[1]+4]
ror @C[4],@E[3],#32-20
eor @C[8],@C[8],@E[0]
ror @C[7],@C[7],#32-20 @ C[3] = ROL64(T[0][0], rhotates[3][0]); /* originally A[3][0] */
eor @C[9],@C[9],@E[1]
ror @C[6],@C[6],#32-21
ror @C[7],@E[0],#32-20 @ C[3] = ROL64(A[3][0] ^ D[0], rhotates[3][0]);
ror @C[6],@E[1],#32-21
eor @C[8],@C[8],@E[2]
eor @C[9],@C[9],@E[3]
@ ror @C[8],@C[2],#32-1 @ C[4] = ROL64(A[4][1] ^ D[1], rhotates[4][1]);
@ ror @C[9],@C[3],#32-1
bic @E[0],@C[4],@C[2]
ror @C[8],@C[8],#32-1 @ C[4] = ROL64(A[4][1] ^ D[1], rhotates[4][1]);
bic @E[1],@C[5],@C[3]
ror @C[9],@C[9],#32-1
eor @E[0],@E[0],@C[0]
eor @E[1],@E[1],@C[1]
str @E[0],[sp,#$A[4][0]] @ A[4][0] = C[0] ^ (~C[1] & C[2])
eor @E[0],@E[0],@C[0],ror#32-31
eor @E[1],@E[1],@C[1],ror#32-31
str @E[0],[sp,#$R[4][0]] @ R[4][0] = C[0] ^ (~C[1] & C[2])
bic @E[2],@C[6],@C[4]
str @E[1],[sp,#$A[4][0]+4]
str @E[1],[sp,#$R[4][0]+4]
bic @E[3],@C[7],@C[5]
eor @E[2],@E[2],@C[2]
eor @E[3],@E[3],@C[3]
str @E[2],[sp,#$A[4][1]] @ A[4][1] = C[1] ^ (~C[2] & C[3]);
bic @E[0],@C[8],@C[6]
str @E[3],[sp,#$A[4][1]+4]
bic @E[1],@C[9],@C[7]
eor @E[0],@E[0],@C[4]
eor @E[1],@E[1],@C[5]
str @E[0],[sp,#$A[4][2]] @ A[4][2] = C[2] ^ (~C[3] & C[4]);
bic @E[2],@C[0],@C[8]
str @E[1],[sp,#$A[4][2]+4]
bic @E[3],@C[1],@C[9]
eor @E[2],@E[2],@C[6]
eor @E[3],@E[3],@C[7]
str @E[2],[sp,#$A[4][3]] @ A[4][3] = C[3] ^ (~C[4] & C[0]);
bic @E[0],@C[2],@C[0]
str @E[3],[sp,#$A[4][3]+4]
bic @E[1],@C[3],@C[1]
eor @E[2],@E[0],@C[8]
eor @E[3],@E[1],@C[9]
str @E[2],[sp,#$A[4][4]] @ A[4][4] = C[4] ^ (~C[0] & C[1]);
add @E[0],sp,#$A[1][0]
str @E[3],[sp,#$A[4][4]+4]
str @E[2],[sp,#$R[4][1]] @ R[4][1] = C[1] ^ (~C[2] & C[3]);
bic @E[0],@C[8],@C[6],ror#1
str @E[3],[sp,#$R[4][1]+4]
bic @E[1],@C[9],@C[7],ror#1
bic @E[2],@C[0],@C[8],ror#31-1
bic @E[3],@C[1],@C[9],ror#31-1
eor @C[4],@C[4],@E[0],ror#32-1
eor @C[5],@C[5],@E[1],ror#32-1
str @C[4],[sp,#$R[4][2]] @ R[4][2] = C[2] ^= (~C[3] & C[4]);
eor @C[6],@C[6],@E[2],ror#32-31
str @C[5],[sp,#$R[4][2]+4]
eor @C[7],@C[7],@E[3],ror#32-31
str @C[6],[sp,#$R[4][3]] @ R[4][3] = C[3] ^= (~C[4] & C[0]);
bic @E[0],@C[2],@C[0],ror#32-31
str @C[7],[sp,#$R[4][3]+4]
bic @E[1],@C[3],@C[1],ror#32-31
add @E[2],sp,#$R[0][0]
eor @C[8],@E[0],@C[8],ror#32-1
add @E[0],sp,#$R[1][0]
eor @C[9],@E[1],@C[9],ror#32-1
str @C[8],[sp,#$R[4][4]] @ R[4][4] = C[4] ^= (~C[0] & C[1]);
str @C[9],[sp,#$R[4][4]+4]
___
}
Round(@A,@T);
Round(@T,@A);
$code.=<<___;
blo .Lround
ldr pc,[sp,#320]
ldr pc,[sp,#440]
.size KeccakF1600_int,.-KeccakF1600_int
.type KeccakF1600, %function
.align 5
KeccakF1600:
stmdb sp!,{r0,r4-r11,lr}
sub sp,sp,#320+16 @ space for A[5][5],D[5],T[2][5],...
sub sp,sp,#440+16 @ space for A[5][5],D[5],T[5][5],...
add @E[0],r0,#$A[1][0]
add @E[1],sp,#$A[1][0]
mov @E[2],r0
ldmia @E[0]!,{@C[0]-@C[9]} @ copy A[5][5] to stack
ldmia r0, {@C[0]-@C[9]} @ copy A[5][5] to stack
stmia sp, {@C[0]-@C[9]}
ldmia @E[0]!,{@C[0]-@C[9]}
stmia @E[1]!,{@C[0]-@C[9]}
ldmia @E[0]!,{@C[0]-@C[9]}
stmia @E[1]!,{@C[0]-@C[9]}
ldmia @E[0]!,{@C[0]-@C[9]}
stmia @E[1]!,{@C[0]-@C[9]}
ldmia @E[0], {@C[0]-@C[9]}
stmia @E[1], {@C[0]-@C[9]}
ldmia @E[2], {@C[0]-@C[9]} @ A[0][0..4]
add @E[2],sp,#$A[0][0]
add @E[0],sp,#$A[1][0]
stmia sp, {@C[0]-@C[9]}
stmia @E[1], {@C[0]-@C[9]}
bl KeccakF1600_enter
ldr @E[1], [sp,#320+16] @ restore pointer to A
ldr @E[1], [sp,#440+16] @ restore pointer to A
ldmia sp, {@C[0]-@C[9]}
stmia @E[1]!,{@C[0]-@C[9]} @ return A[5][5]
ldmia @E[0]!,{@C[0]-@C[9]}
@ -610,7 +646,7 @@ KeccakF1600:
ldmia @E[0], {@C[0]-@C[9]}
stmia @E[1], {@C[0]-@C[9]}
add sp,sp,#320+20
add sp,sp,#440+20
ldmia sp!,{r4-r11,pc}
.size KeccakF1600,.-KeccakF1600
___
@ -622,23 +658,23 @@ ___
# | uint64_t A[5][5] |
# | ... |
# | ... |
# +336->+-----------------------+
# +456->+-----------------------+
# | 0x55555555 |
# +340->+-----------------------+
# +460->+-----------------------+
# | 0x33333333 |
# +344->+-----------------------+
# +464->+-----------------------+
# | 0x0f0f0f0f |
# +348->+-----------------------+
# +468->+-----------------------+
# | 0x00ff00ff |
# +352->+-----------------------+
# +472->+-----------------------+
# | uint64_t *A |
# +356->+-----------------------+
# +476->+-----------------------+
# | const void *inp |
# +360->+-----------------------+
# +480->+-----------------------+
# | size_t len |
# +364->+-----------------------+
# +484->+-----------------------+
# | size_t bs |
# +368->+-----------------------+
# +488->+-----------------------+
# | ....
$code.=<<___;
@ -647,7 +683,7 @@ $code.=<<___;
.align 5
SHA3_absorb:
stmdb sp!,{r0-r12,lr}
sub sp,sp,#336+16
sub sp,sp,#456+16
add $A_flat,r0,#$A[1][0]
@ mov $inp,r1
@ -668,7 +704,7 @@ SHA3_absorb:
ldmia $A_flat!,{@C[0]-@C[9]}
stmia $inp, {@C[0]-@C[9]}
ldr $inp,[sp,#356] @ restore $inp
ldr $inp,[sp,#476] @ restore $inp
#ifdef __thumb2__
mov r9,#0x00ff00ff
mov r8,#0x0f0f0f0f
@ -686,10 +722,10 @@ SHA3_absorb:
orr r7,r6,r6,lsl#1 @ 0x33333333
orr r6,r6,r6,lsl#2 @ 0x55555555
#endif
str r9,[sp,#348]
str r8,[sp,#344]
str r7,[sp,#340]
str r6,[sp,#336]
str r9,[sp,#468]
str r8,[sp,#464]
str r7,[sp,#460]
str r6,[sp,#456]
b .Loop_absorb
.align 4
@ -697,7 +733,7 @@ SHA3_absorb:
subs r0,$len,$bsz
blo .Labsorbed
add $A_flat,sp,#0
str r0,[sp,#360] @ save len - bsz
str r0,[sp,#480] @ save len - bsz
.align 4
.Loop_block:
@ -761,11 +797,11 @@ SHA3_absorb:
subs $bsz,$bsz,#8
bhi .Loop_block
str $inp,[sp,#356]
str $inp,[sp,#476]
bl KeccakF1600_int
add r14,sp,#336
add r14,sp,#456
ldmia r14,{r6-r12,r14} @ restore constants and variables
b .Loop_absorb
@ -784,7 +820,7 @@ SHA3_absorb:
stmia $A_flat, {@C[0]-@C[9]}
.Labsorb_abort:
add sp,sp,#336+32
add sp,sp,#456+32
mov r0,$len @ return value
ldmia sp!,{r4-r12,pc}
.size SHA3_absorb,.-SHA3_absorb


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