diff options
Diffstat (limited to 'app/openssl/crypto/sha/asm/sha1-armv4-large.pl')
| -rw-r--r-- | app/openssl/crypto/sha/asm/sha1-armv4-large.pl | 41 |
1 files changed, 30 insertions, 11 deletions
diff --git a/app/openssl/crypto/sha/asm/sha1-armv4-large.pl b/app/openssl/crypto/sha/asm/sha1-armv4-large.pl index 79e3f613..33da3e0e 100644 --- a/app/openssl/crypto/sha/asm/sha1-armv4-large.pl +++ b/app/openssl/crypto/sha/asm/sha1-armv4-large.pl @@ -47,6 +47,10 @@ # Cortex A8 core and in absolute terms ~870 cycles per input block # [or 13.6 cycles per byte]. +# February 2011. +# +# Profiler-assisted and platform-specific optimization resulted in 10% +# improvement on Cortex A8 core and 12.2 cycles per byte. while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} open STDOUT,">$output"; @@ -76,31 +80,41 @@ $code.=<<___; add $e,$K,$e,ror#2 @ E+=K_xx_xx ldr $t3,[$Xi,#2*4] eor $t0,$t0,$t1 - eor $t2,$t2,$t3 + eor $t2,$t2,$t3 @ 1 cycle stall eor $t1,$c,$d @ F_xx_xx mov $t0,$t0,ror#31 add $e,$e,$a,ror#27 @ E+=ROR(A,27) eor $t0,$t0,$t2,ror#31 + str $t0,[$Xi,#-4]! $opt1 @ F_xx_xx $opt2 @ F_xx_xx add $e,$e,$t0 @ E+=X[i] - str $t0,[$Xi,#-4]! ___ } sub BODY_00_15 { my ($a,$b,$c,$d,$e)=@_; $code.=<<___; - ldrb $t0,[$inp],#4 - ldrb $t1,[$inp,#-1] - ldrb $t2,[$inp,#-2] +#if __ARM_ARCH__<7 + ldrb $t1,[$inp,#2] + ldrb $t0,[$inp,#3] + ldrb $t2,[$inp,#1] add $e,$K,$e,ror#2 @ E+=K_00_19 - ldrb $t3,[$inp,#-3] + ldrb $t3,[$inp],#4 + orr $t0,$t0,$t1,lsl#8 + eor $t1,$c,$d @ F_xx_xx + orr $t0,$t0,$t2,lsl#16 add $e,$e,$a,ror#27 @ E+=ROR(A,27) - orr $t0,$t1,$t0,lsl#24 + orr $t0,$t0,$t3,lsl#24 +#else + ldr $t0,[$inp],#4 @ handles unaligned + add $e,$K,$e,ror#2 @ E+=K_00_19 eor $t1,$c,$d @ F_xx_xx - orr $t0,$t0,$t2,lsl#8 - orr $t0,$t0,$t3,lsl#16 + add $e,$e,$a,ror#27 @ E+=ROR(A,27) +#ifdef __ARMEL__ + rev $t0,$t0 @ byte swap +#endif +#endif and $t1,$b,$t1,ror#2 add $e,$e,$t0 @ E+=X[i] eor $t1,$t1,$d,ror#2 @ F_00_19(B,C,D) @@ -136,6 +150,8 @@ ___ } $code=<<___; +#include "arm_arch.h" + .text .global sha1_block_data_order @@ -161,7 +177,7 @@ for($i=0;$i<5;$i++) { $code.=<<___; teq $Xi,sp bne .L_00_15 @ [((11+4)*5+2)*3] - sub sp,sp,#5*4 + sub sp,sp,#25*4 ___ &BODY_00_15(@V); unshift(@V,pop(@V)); &BODY_16_19(@V); unshift(@V,pop(@V)); @@ -171,7 +187,6 @@ ___ $code.=<<___; ldr $K,.LK_20_39 @ [+15+16*4] - sub sp,sp,#20*4 cmn sp,#0 @ [+3], clear carry to denote 20_39 .L_20_39_or_60_79: ___ @@ -210,10 +225,14 @@ $code.=<<___; teq $inp,$len bne .Lloop @ [+18], total 1307 +#if __ARM_ARCH__>=5 + ldmia sp!,{r4-r12,pc} +#else ldmia sp!,{r4-r12,lr} tst lr,#1 moveq pc,lr @ be binary compatible with V4, yet bx lr @ interoperable with Thumb ISA:-) +#endif .align 2 .LK_00_19: .word 0x5a827999 .LK_20_39: .word 0x6ed9eba1 |