diff options
Diffstat (limited to 'openssl/crypto/sha/asm/sha1-armv4-large.pl')
| -rw-r--r-- | openssl/crypto/sha/asm/sha1-armv4-large.pl | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/openssl/crypto/sha/asm/sha1-armv4-large.pl b/openssl/crypto/sha/asm/sha1-armv4-large.pl deleted file mode 100644 index 79e3f613..00000000 --- a/openssl/crypto/sha/asm/sha1-armv4-large.pl +++ /dev/null @@ -1,229 +0,0 @@ -#!/usr/bin/env perl - -# ==================================================================== -# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL -# project. The module is, however, dual licensed under OpenSSL and -# CRYPTOGAMS licenses depending on where you obtain it. For further -# details see http://www.openssl.org/~appro/cryptogams/. -# ==================================================================== - -# sha1_block procedure for ARMv4. -# -# January 2007. - -# Size/performance trade-off -# ==================================================================== -# impl size in bytes comp cycles[*] measured performance -# ==================================================================== -# thumb 304 3212 4420 -# armv4-small 392/+29% 1958/+64% 2250/+96% -# armv4-compact 740/+89% 1552/+26% 1840/+22% -# armv4-large 1420/+92% 1307/+19% 1370/+34%[***] -# full unroll ~5100/+260% ~1260/+4% ~1300/+5% -# ==================================================================== -# thumb = same as 'small' but in Thumb instructions[**] and -# with recurring code in two private functions; -# small = detached Xload/update, loops are folded; -# compact = detached Xload/update, 5x unroll; -# large = interleaved Xload/update, 5x unroll; -# full unroll = interleaved Xload/update, full unroll, estimated[!]; -# -# [*] Manually counted instructions in "grand" loop body. Measured -# performance is affected by prologue and epilogue overhead, -# i-cache availability, branch penalties, etc. -# [**] While each Thumb instruction is twice smaller, they are not as -# diverse as ARM ones: e.g., there are only two arithmetic -# instructions with 3 arguments, no [fixed] rotate, addressing -# modes are limited. As result it takes more instructions to do -# the same job in Thumb, therefore the code is never twice as -# small and always slower. -# [***] which is also ~35% better than compiler generated code. Dual- -# issue Cortex A8 core was measured to process input block in -# ~990 cycles. - -# August 2010. -# -# Rescheduling for dual-issue pipeline resulted in 13% improvement on -# Cortex A8 core and in absolute terms ~870 cycles per input block -# [or 13.6 cycles per byte]. - - -while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} -open STDOUT,">$output"; - -$ctx="r0"; -$inp="r1"; -$len="r2"; -$a="r3"; -$b="r4"; -$c="r5"; -$d="r6"; -$e="r7"; -$K="r8"; -$t0="r9"; -$t1="r10"; -$t2="r11"; -$t3="r12"; -$Xi="r14"; -@V=($a,$b,$c,$d,$e); - -sub Xupdate { -my ($a,$b,$c,$d,$e,$opt1,$opt2)=@_; -$code.=<<___; - ldr $t0,[$Xi,#15*4] - ldr $t1,[$Xi,#13*4] - ldr $t2,[$Xi,#7*4] - add $e,$K,$e,ror#2 @ E+=K_xx_xx - ldr $t3,[$Xi,#2*4] - eor $t0,$t0,$t1 - eor $t2,$t2,$t3 - 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 - $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] - add $e,$K,$e,ror#2 @ E+=K_00_19 - ldrb $t3,[$inp,#-3] - add $e,$e,$a,ror#27 @ E+=ROR(A,27) - orr $t0,$t1,$t0,lsl#24 - eor $t1,$c,$d @ F_xx_xx - orr $t0,$t0,$t2,lsl#8 - orr $t0,$t0,$t3,lsl#16 - 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) - str $t0,[$Xi,#-4]! - add $e,$e,$t1 @ E+=F_00_19(B,C,D) -___ -} - -sub BODY_16_19 { -my ($a,$b,$c,$d,$e)=@_; - &Xupdate(@_,"and $t1,$b,$t1,ror#2"); -$code.=<<___; - eor $t1,$t1,$d,ror#2 @ F_00_19(B,C,D) - add $e,$e,$t1 @ E+=F_00_19(B,C,D) -___ -} - -sub BODY_20_39 { -my ($a,$b,$c,$d,$e)=@_; - &Xupdate(@_,"eor $t1,$b,$t1,ror#2"); -$code.=<<___; - add $e,$e,$t1 @ E+=F_20_39(B,C,D) -___ -} - -sub BODY_40_59 { -my ($a,$b,$c,$d,$e)=@_; - &Xupdate(@_,"and $t1,$b,$t1,ror#2","and $t2,$c,$d"); -$code.=<<___; - add $e,$e,$t1 @ E+=F_40_59(B,C,D) - add $e,$e,$t2,ror#2 -___ -} - -$code=<<___; -.text - -.global sha1_block_data_order -.type sha1_block_data_order,%function - -.align 2 -sha1_block_data_order: - stmdb sp!,{r4-r12,lr} - add $len,$inp,$len,lsl#6 @ $len to point at the end of $inp - ldmia $ctx,{$a,$b,$c,$d,$e} -.Lloop: - ldr $K,.LK_00_19 - mov $Xi,sp - sub sp,sp,#15*4 - mov $c,$c,ror#30 - mov $d,$d,ror#30 - mov $e,$e,ror#30 @ [6] -.L_00_15: -___ -for($i=0;$i<5;$i++) { - &BODY_00_15(@V); unshift(@V,pop(@V)); -} -$code.=<<___; - teq $Xi,sp - bne .L_00_15 @ [((11+4)*5+2)*3] - sub sp,sp,#5*4 -___ - &BODY_00_15(@V); unshift(@V,pop(@V)); - &BODY_16_19(@V); unshift(@V,pop(@V)); - &BODY_16_19(@V); unshift(@V,pop(@V)); - &BODY_16_19(@V); unshift(@V,pop(@V)); - &BODY_16_19(@V); unshift(@V,pop(@V)); -$code.=<<___; - - ldr $K,.LK_20_39 @ [+15+16*4] - sub sp,sp,#20*4 - cmn sp,#0 @ [+3], clear carry to denote 20_39 -.L_20_39_or_60_79: -___ -for($i=0;$i<5;$i++) { - &BODY_20_39(@V); unshift(@V,pop(@V)); -} -$code.=<<___; - teq $Xi,sp @ preserve carry - bne .L_20_39_or_60_79 @ [+((12+3)*5+2)*4] - bcs .L_done @ [+((12+3)*5+2)*4], spare 300 bytes - - ldr $K,.LK_40_59 - sub sp,sp,#20*4 @ [+2] -.L_40_59: -___ -for($i=0;$i<5;$i++) { - &BODY_40_59(@V); unshift(@V,pop(@V)); -} -$code.=<<___; - teq $Xi,sp - bne .L_40_59 @ [+((12+5)*5+2)*4] - - ldr $K,.LK_60_79 - sub sp,sp,#20*4 - cmp sp,#0 @ set carry to denote 60_79 - b .L_20_39_or_60_79 @ [+4], spare 300 bytes -.L_done: - add sp,sp,#80*4 @ "deallocate" stack frame - ldmia $ctx,{$K,$t0,$t1,$t2,$t3} - add $a,$K,$a - add $b,$t0,$b - add $c,$t1,$c,ror#2 - add $d,$t2,$d,ror#2 - add $e,$t3,$e,ror#2 - stmia $ctx,{$a,$b,$c,$d,$e} - teq $inp,$len - bne .Lloop @ [+18], total 1307 - - ldmia sp!,{r4-r12,lr} - tst lr,#1 - moveq pc,lr @ be binary compatible with V4, yet - bx lr @ interoperable with Thumb ISA:-) -.align 2 -.LK_00_19: .word 0x5a827999 -.LK_20_39: .word 0x6ed9eba1 -.LK_40_59: .word 0x8f1bbcdc -.LK_60_79: .word 0xca62c1d6 -.size sha1_block_data_order,.-sha1_block_data_order -.asciz "SHA1 block transform for ARMv4, CRYPTOGAMS by <appro\@openssl.org>" -.align 2 -___ - -$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 -print $code; -close STDOUT; # enforce flush |