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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /openssl/crypto/bn/asm/ppc-mont.pl | |
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font-bitstream-type1-1.0.0.tar.gz
font-bitstream-speedo-1.0.0.tar.gz
font-bh-ttf-1.0.0.tar.gz
font-bh-type1-1.0.0.tar.gz
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font-adobe-utopia-100dpi-1.0.1.tar.gz
font-adobe-100dpi-1.0.0.tar.gz
font-util-1.0.1.tar.gz
font-bitstream-75dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz
font-adobe-utopia-75dpi-1.0.1.tar.gz
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bdftopcf-1.0.1.tar.gz
font-adobe-75dpi-1.0.0.tar.gz
mkfontscale-1.0.6.tar.gz
openssl-0.9.8k.tar.gz
bigreqsproto-1.0.2.tar.gz
xtrans-1.2.2.tar.gz
resourceproto-1.0.2.tar.gz
inputproto-1.4.4.tar.gz
compositeproto-0.4.tar.gz
damageproto-1.1.0.tar.gz
zlib-1.2.3.tar.gz
xkbcomp-1.0.5.tar.gz
freetype-2.3.9.tar.gz
pthreads-w32-2-8-0-release.tar.gz
pixman-0.12.0.tar.gz
kbproto-1.0.3.tar.gz
evieext-1.0.2.tar.gz
fixesproto-4.0.tar.gz
recordproto-1.13.2.tar.gz
randrproto-1.2.2.tar.gz
scrnsaverproto-1.1.0.tar.gz
renderproto-0.9.3.tar.gz
xcmiscproto-1.1.2.tar.gz
fontsproto-2.0.2.tar.gz
xextproto-7.0.3.tar.gz
xproto-7.0.14.tar.gz
libXdmcp-1.0.2.tar.gz
libxkbfile-1.0.5.tar.gz
libfontenc-1.0.4.tar.gz
libXfont-1.3.4.tar.gz
libX11-1.1.5.tar.gz
libXau-1.0.4.tar.gz
libxcb-1.1.tar.gz
xorg-server-1.5.3.tar.gz
Diffstat (limited to 'openssl/crypto/bn/asm/ppc-mont.pl')
-rw-r--r-- | openssl/crypto/bn/asm/ppc-mont.pl | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/openssl/crypto/bn/asm/ppc-mont.pl b/openssl/crypto/bn/asm/ppc-mont.pl new file mode 100644 index 000000000..7849eae95 --- /dev/null +++ b/openssl/crypto/bn/asm/ppc-mont.pl @@ -0,0 +1,323 @@ +#!/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/. +# ==================================================================== + +# April 2006 + +# "Teaser" Montgomery multiplication module for PowerPC. It's possible +# to gain a bit more by modulo-scheduling outer loop, then dedicated +# squaring procedure should give further 20% and code can be adapted +# for 32-bit application running on 64-bit CPU. As for the latter. +# It won't be able to achieve "native" 64-bit performance, because in +# 32-bit application context every addc instruction will have to be +# expanded as addc, twice right shift by 32 and finally adde, etc. +# So far RSA *sign* performance improvement over pre-bn_mul_mont asm +# for 64-bit application running on PPC970/G5 is: +# +# 512-bit +65% +# 1024-bit +35% +# 2048-bit +18% +# 4096-bit +4% + +$flavour = shift; + +if ($flavour =~ /32/) { + $BITS= 32; + $BNSZ= $BITS/8; + $SIZE_T=4; + $RZONE= 224; + $FRAME= $SIZE_T*16; + + $LD= "lwz"; # load + $LDU= "lwzu"; # load and update + $LDX= "lwzx"; # load indexed + $ST= "stw"; # store + $STU= "stwu"; # store and update + $STX= "stwx"; # store indexed + $STUX= "stwux"; # store indexed and update + $UMULL= "mullw"; # unsigned multiply low + $UMULH= "mulhwu"; # unsigned multiply high + $UCMP= "cmplw"; # unsigned compare + $SHRI= "srwi"; # unsigned shift right by immediate + $PUSH= $ST; + $POP= $LD; +} elsif ($flavour =~ /64/) { + $BITS= 64; + $BNSZ= $BITS/8; + $SIZE_T=8; + $RZONE= 288; + $FRAME= $SIZE_T*16; + + # same as above, but 64-bit mnemonics... + $LD= "ld"; # load + $LDU= "ldu"; # load and update + $LDX= "ldx"; # load indexed + $ST= "std"; # store + $STU= "stdu"; # store and update + $STX= "stdx"; # store indexed + $STUX= "stdux"; # store indexed and update + $UMULL= "mulld"; # unsigned multiply low + $UMULH= "mulhdu"; # unsigned multiply high + $UCMP= "cmpld"; # unsigned compare + $SHRI= "srdi"; # unsigned shift right by immediate + $PUSH= $ST; + $POP= $LD; +} else { die "nonsense $flavour"; } + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or +( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or +die "can't locate ppc-xlate.pl"; + +open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!"; + +$sp="r1"; +$toc="r2"; +$rp="r3"; $ovf="r3"; +$ap="r4"; +$bp="r5"; +$np="r6"; +$n0="r7"; +$num="r8"; +$rp="r9"; # $rp is reassigned +$aj="r10"; +$nj="r11"; +$tj="r12"; +# non-volatile registers +$i="r14"; +$j="r15"; +$tp="r16"; +$m0="r17"; +$m1="r18"; +$lo0="r19"; +$hi0="r20"; +$lo1="r21"; +$hi1="r22"; +$alo="r23"; +$ahi="r24"; +$nlo="r25"; +# +$nhi="r0"; + +$code=<<___; +.machine "any" +.text + +.globl .bn_mul_mont +.align 4 +.bn_mul_mont: + cmpwi $num,4 + mr $rp,r3 ; $rp is reassigned + li r3,0 + bltlr + + slwi $num,$num,`log($BNSZ)/log(2)` + li $tj,-4096 + addi $ovf,$num,`$FRAME+$RZONE` + subf $ovf,$ovf,$sp ; $sp-$ovf + and $ovf,$ovf,$tj ; minimize TLB usage + subf $ovf,$sp,$ovf ; $ovf-$sp + srwi $num,$num,`log($BNSZ)/log(2)` + $STUX $sp,$sp,$ovf + + $PUSH r14,`4*$SIZE_T`($sp) + $PUSH r15,`5*$SIZE_T`($sp) + $PUSH r16,`6*$SIZE_T`($sp) + $PUSH r17,`7*$SIZE_T`($sp) + $PUSH r18,`8*$SIZE_T`($sp) + $PUSH r19,`9*$SIZE_T`($sp) + $PUSH r20,`10*$SIZE_T`($sp) + $PUSH r21,`11*$SIZE_T`($sp) + $PUSH r22,`12*$SIZE_T`($sp) + $PUSH r23,`13*$SIZE_T`($sp) + $PUSH r24,`14*$SIZE_T`($sp) + $PUSH r25,`15*$SIZE_T`($sp) + + $LD $n0,0($n0) ; pull n0[0] value + addi $num,$num,-2 ; adjust $num for counter register + + $LD $m0,0($bp) ; m0=bp[0] + $LD $aj,0($ap) ; ap[0] + addi $tp,$sp,$FRAME + $UMULL $lo0,$aj,$m0 ; ap[0]*bp[0] + $UMULH $hi0,$aj,$m0 + + $LD $aj,$BNSZ($ap) ; ap[1] + $LD $nj,0($np) ; np[0] + + $UMULL $m1,$lo0,$n0 ; "tp[0]"*n0 + + $UMULL $alo,$aj,$m0 ; ap[1]*bp[0] + $UMULH $ahi,$aj,$m0 + + $UMULL $lo1,$nj,$m1 ; np[0]*m1 + $UMULH $hi1,$nj,$m1 + $LD $nj,$BNSZ($np) ; np[1] + addc $lo1,$lo1,$lo0 + addze $hi1,$hi1 + + $UMULL $nlo,$nj,$m1 ; np[1]*m1 + $UMULH $nhi,$nj,$m1 + + mtctr $num + li $j,`2*$BNSZ` +.align 4 +L1st: + $LDX $aj,$ap,$j ; ap[j] + addc $lo0,$alo,$hi0 + $LDX $nj,$np,$j ; np[j] + addze $hi0,$ahi + $UMULL $alo,$aj,$m0 ; ap[j]*bp[0] + addc $lo1,$nlo,$hi1 + $UMULH $ahi,$aj,$m0 + addze $hi1,$nhi + $UMULL $nlo,$nj,$m1 ; np[j]*m1 + addc $lo1,$lo1,$lo0 ; np[j]*m1+ap[j]*bp[0] + $UMULH $nhi,$nj,$m1 + addze $hi1,$hi1 + $ST $lo1,0($tp) ; tp[j-1] + + addi $j,$j,$BNSZ ; j++ + addi $tp,$tp,$BNSZ ; tp++ + bdnz- L1st +;L1st + addc $lo0,$alo,$hi0 + addze $hi0,$ahi + + addc $lo1,$nlo,$hi1 + addze $hi1,$nhi + addc $lo1,$lo1,$lo0 ; np[j]*m1+ap[j]*bp[0] + addze $hi1,$hi1 + $ST $lo1,0($tp) ; tp[j-1] + + li $ovf,0 + addc $hi1,$hi1,$hi0 + addze $ovf,$ovf ; upmost overflow bit + $ST $hi1,$BNSZ($tp) + + li $i,$BNSZ +.align 4 +Louter: + $LDX $m0,$bp,$i ; m0=bp[i] + $LD $aj,0($ap) ; ap[0] + addi $tp,$sp,$FRAME + $LD $tj,$FRAME($sp) ; tp[0] + $UMULL $lo0,$aj,$m0 ; ap[0]*bp[i] + $UMULH $hi0,$aj,$m0 + $LD $aj,$BNSZ($ap) ; ap[1] + $LD $nj,0($np) ; np[0] + addc $lo0,$lo0,$tj ; ap[0]*bp[i]+tp[0] + $UMULL $alo,$aj,$m0 ; ap[j]*bp[i] + addze $hi0,$hi0 + $UMULL $m1,$lo0,$n0 ; tp[0]*n0 + $UMULH $ahi,$aj,$m0 + $UMULL $lo1,$nj,$m1 ; np[0]*m1 + $UMULH $hi1,$nj,$m1 + $LD $nj,$BNSZ($np) ; np[1] + addc $lo1,$lo1,$lo0 + $UMULL $nlo,$nj,$m1 ; np[1]*m1 + addze $hi1,$hi1 + $UMULH $nhi,$nj,$m1 + + mtctr $num + li $j,`2*$BNSZ` +.align 4 +Linner: + $LDX $aj,$ap,$j ; ap[j] + addc $lo0,$alo,$hi0 + $LD $tj,$BNSZ($tp) ; tp[j] + addze $hi0,$ahi + $LDX $nj,$np,$j ; np[j] + addc $lo1,$nlo,$hi1 + $UMULL $alo,$aj,$m0 ; ap[j]*bp[i] + addze $hi1,$nhi + $UMULH $ahi,$aj,$m0 + addc $lo0,$lo0,$tj ; ap[j]*bp[i]+tp[j] + $UMULL $nlo,$nj,$m1 ; np[j]*m1 + addze $hi0,$hi0 + $UMULH $nhi,$nj,$m1 + addc $lo1,$lo1,$lo0 ; np[j]*m1+ap[j]*bp[i]+tp[j] + addi $j,$j,$BNSZ ; j++ + addze $hi1,$hi1 + $ST $lo1,0($tp) ; tp[j-1] + addi $tp,$tp,$BNSZ ; tp++ + bdnz- Linner +;Linner + $LD $tj,$BNSZ($tp) ; tp[j] + addc $lo0,$alo,$hi0 + addze $hi0,$ahi + addc $lo0,$lo0,$tj ; ap[j]*bp[i]+tp[j] + addze $hi0,$hi0 + + addc $lo1,$nlo,$hi1 + addze $hi1,$nhi + addc $lo1,$lo1,$lo0 ; np[j]*m1+ap[j]*bp[i]+tp[j] + addze $hi1,$hi1 + $ST $lo1,0($tp) ; tp[j-1] + + addic $ovf,$ovf,-1 ; move upmost overflow to XER[CA] + li $ovf,0 + adde $hi1,$hi1,$hi0 + addze $ovf,$ovf + $ST $hi1,$BNSZ($tp) +; + slwi $tj,$num,`log($BNSZ)/log(2)` + $UCMP $i,$tj + addi $i,$i,$BNSZ + ble- Louter + + addi $num,$num,2 ; restore $num + subfc $j,$j,$j ; j=0 and "clear" XER[CA] + addi $tp,$sp,$FRAME + mtctr $num + +.align 4 +Lsub: $LDX $tj,$tp,$j + $LDX $nj,$np,$j + subfe $aj,$nj,$tj ; tp[j]-np[j] + $STX $aj,$rp,$j + addi $j,$j,$BNSZ + bdnz- Lsub + + li $j,0 + mtctr $num + subfe $ovf,$j,$ovf ; handle upmost overflow bit + and $ap,$tp,$ovf + andc $np,$rp,$ovf + or $ap,$ap,$np ; ap=borrow?tp:rp + +.align 4 +Lcopy: ; copy or in-place refresh + $LDX $tj,$ap,$j + $STX $tj,$rp,$j + $STX $j,$tp,$j ; zap at once + addi $j,$j,$BNSZ + bdnz- Lcopy + + $POP r14,`4*$SIZE_T`($sp) + $POP r15,`5*$SIZE_T`($sp) + $POP r16,`6*$SIZE_T`($sp) + $POP r17,`7*$SIZE_T`($sp) + $POP r18,`8*$SIZE_T`($sp) + $POP r19,`9*$SIZE_T`($sp) + $POP r20,`10*$SIZE_T`($sp) + $POP r21,`11*$SIZE_T`($sp) + $POP r22,`12*$SIZE_T`($sp) + $POP r23,`13*$SIZE_T`($sp) + $POP r24,`14*$SIZE_T`($sp) + $POP r25,`15*$SIZE_T`($sp) + $POP $sp,0($sp) + li r3,1 + blr + .long 0 +.asciz "Montgomery Multiplication for PPC, CRYPTOGAMS by <appro\@fy.chalmers.se>" +___ + +$code =~ s/\`([^\`]*)\`/eval $1/gem; +print $code; +close STDOUT; |