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Diffstat (limited to 'openssl/crypto/bn/asm/ppc.pl')
| -rw-r--r-- | openssl/crypto/bn/asm/ppc.pl | 2078 |
1 files changed, 2078 insertions, 0 deletions
diff --git a/openssl/crypto/bn/asm/ppc.pl b/openssl/crypto/bn/asm/ppc.pl new file mode 100644 index 000000000..08e005347 --- /dev/null +++ b/openssl/crypto/bn/asm/ppc.pl @@ -0,0 +1,2078 @@ +#!/usr/bin/env perl +# +# Implemented as a Perl wrapper as we want to support several different +# architectures with single file. We pick up the target based on the +# file name we are asked to generate. +# +# It should be noted though that this perl code is nothing like +# <openssl>/crypto/perlasm/x86*. In this case perl is used pretty much +# as pre-processor to cover for platform differences in name decoration, +# linker tables, 32-/64-bit instruction sets... +# +# As you might know there're several PowerPC ABI in use. Most notably +# Linux and AIX use different 32-bit ABIs. Good news are that these ABIs +# are similar enough to implement leaf(!) functions, which would be ABI +# neutral. And that's what you find here: ABI neutral leaf functions. +# In case you wonder what that is... +# +# AIX performance +# +# MEASUREMENTS WITH cc ON a 200 MhZ PowerPC 604e. +# +# The following is the performance of 32-bit compiler +# generated code: +# +# OpenSSL 0.9.6c 21 dec 2001 +# built on: Tue Jun 11 11:06:51 EDT 2002 +# options:bn(64,32) ... +#compiler: cc -DTHREADS -DAIX -DB_ENDIAN -DBN_LLONG -O3 +# sign verify sign/s verify/s +#rsa 512 bits 0.0098s 0.0009s 102.0 1170.6 +#rsa 1024 bits 0.0507s 0.0026s 19.7 387.5 +#rsa 2048 bits 0.3036s 0.0085s 3.3 117.1 +#rsa 4096 bits 2.0040s 0.0299s 0.5 33.4 +#dsa 512 bits 0.0087s 0.0106s 114.3 94.5 +#dsa 1024 bits 0.0256s 0.0313s 39.0 32.0 +# +# Same bechmark with this assembler code: +# +#rsa 512 bits 0.0056s 0.0005s 178.6 2049.2 +#rsa 1024 bits 0.0283s 0.0015s 35.3 674.1 +#rsa 2048 bits 0.1744s 0.0050s 5.7 201.2 +#rsa 4096 bits 1.1644s 0.0179s 0.9 55.7 +#dsa 512 bits 0.0052s 0.0062s 191.6 162.0 +#dsa 1024 bits 0.0149s 0.0180s 67.0 55.5 +# +# Number of operations increases by at almost 75% +# +# Here are performance numbers for 64-bit compiler +# generated code: +# +# OpenSSL 0.9.6g [engine] 9 Aug 2002 +# built on: Fri Apr 18 16:59:20 EDT 2003 +# options:bn(64,64) ... +# compiler: cc -DTHREADS -D_REENTRANT -q64 -DB_ENDIAN -O3 +# sign verify sign/s verify/s +#rsa 512 bits 0.0028s 0.0003s 357.1 3844.4 +#rsa 1024 bits 0.0148s 0.0008s 67.5 1239.7 +#rsa 2048 bits 0.0963s 0.0028s 10.4 353.0 +#rsa 4096 bits 0.6538s 0.0102s 1.5 98.1 +#dsa 512 bits 0.0026s 0.0032s 382.5 313.7 +#dsa 1024 bits 0.0081s 0.0099s 122.8 100.6 +# +# Same benchmark with this assembler code: +# +#rsa 512 bits 0.0020s 0.0002s 510.4 6273.7 +#rsa 1024 bits 0.0088s 0.0005s 114.1 2128.3 +#rsa 2048 bits 0.0540s 0.0016s 18.5 622.5 +#rsa 4096 bits 0.3700s 0.0058s 2.7 171.0 +#dsa 512 bits 0.0016s 0.0020s 610.7 507.1 +#dsa 1024 bits 0.0047s 0.0058s 212.5 173.2 +# +# Again, performance increases by at about 75% +# +# Mac OS X, Apple G5 1.8GHz (Note this is 32 bit code) +# OpenSSL 0.9.7c 30 Sep 2003 +# +# Original code. +# +#rsa 512 bits 0.0011s 0.0001s 906.1 11012.5 +#rsa 1024 bits 0.0060s 0.0003s 166.6 3363.1 +#rsa 2048 bits 0.0370s 0.0010s 27.1 982.4 +#rsa 4096 bits 0.2426s 0.0036s 4.1 280.4 +#dsa 512 bits 0.0010s 0.0012s 1038.1 841.5 +#dsa 1024 bits 0.0030s 0.0037s 329.6 269.7 +#dsa 2048 bits 0.0101s 0.0127s 98.9 78.6 +# +# Same benchmark with this assembler code: +# +#rsa 512 bits 0.0007s 0.0001s 1416.2 16645.9 +#rsa 1024 bits 0.0036s 0.0002s 274.4 5380.6 +#rsa 2048 bits 0.0222s 0.0006s 45.1 1589.5 +#rsa 4096 bits 0.1469s 0.0022s 6.8 449.6 +#dsa 512 bits 0.0006s 0.0007s 1664.2 1376.2 +#dsa 1024 bits 0.0018s 0.0023s 545.0 442.2 +#dsa 2048 bits 0.0061s 0.0075s 163.5 132.8 +# +# Performance increase of ~60% +# +# If you have comments or suggestions to improve code send +# me a note at schari@us.ibm.com +# + +$opf = shift; + +if ($opf =~ /32\.s/) { + $BITS= 32; + $BNSZ= $BITS/8; + $ISA= "\"ppc\""; + + $LD= "lwz"; # load + $LDU= "lwzu"; # load and update + $ST= "stw"; # store + $STU= "stwu"; # store and update + $UMULL= "mullw"; # unsigned multiply low + $UMULH= "mulhwu"; # unsigned multiply high + $UDIV= "divwu"; # unsigned divide + $UCMPI= "cmplwi"; # unsigned compare with immediate + $UCMP= "cmplw"; # unsigned compare + $CNTLZ= "cntlzw"; # count leading zeros + $SHL= "slw"; # shift left + $SHR= "srw"; # unsigned shift right + $SHRI= "srwi"; # unsigned shift right by immediate + $SHLI= "slwi"; # shift left by immediate + $CLRU= "clrlwi"; # clear upper bits + $INSR= "insrwi"; # insert right + $ROTL= "rotlwi"; # rotate left by immediate + $TR= "tw"; # conditional trap +} elsif ($opf =~ /64\.s/) { + $BITS= 64; + $BNSZ= $BITS/8; + $ISA= "\"ppc64\""; + + # same as above, but 64-bit mnemonics... + $LD= "ld"; # load + $LDU= "ldu"; # load and update + $ST= "std"; # store + $STU= "stdu"; # store and update + $UMULL= "mulld"; # unsigned multiply low + $UMULH= "mulhdu"; # unsigned multiply high + $UDIV= "divdu"; # unsigned divide + $UCMPI= "cmpldi"; # unsigned compare with immediate + $UCMP= "cmpld"; # unsigned compare + $CNTLZ= "cntlzd"; # count leading zeros + $SHL= "sld"; # shift left + $SHR= "srd"; # unsigned shift right + $SHRI= "srdi"; # unsigned shift right by immediate + $SHLI= "sldi"; # shift left by immediate + $CLRU= "clrldi"; # clear upper bits + $INSR= "insrdi"; # insert right + $ROTL= "rotldi"; # rotate left by immediate + $TR= "td"; # conditional trap +} else { die "nonsense $opf"; } + +( defined shift || open STDOUT,">$opf" ) || die "can't open $opf: $!"; + +# function entry points from the AIX code +# +# There are other, more elegant, ways to handle this. We (IBM) chose +# this approach as it plays well with scripts we run to 'namespace' +# OpenSSL .i.e. we add a prefix to all the public symbols so we can +# co-exist in the same process with other implementations of OpenSSL. +# 'cleverer' ways of doing these substitutions tend to hide data we +# need to be obvious. +# +my @items = ("bn_sqr_comba4", + "bn_sqr_comba8", + "bn_mul_comba4", + "bn_mul_comba8", + "bn_sub_words", + "bn_add_words", + "bn_div_words", + "bn_sqr_words", + "bn_mul_words", + "bn_mul_add_words"); + +if ($opf =~ /linux/) { do_linux(); } +elsif ($opf =~ /aix/) { do_aix(); } +elsif ($opf =~ /osx/) { do_osx(); } +else { do_bsd(); } + +sub do_linux { + $d=&data(); + + if ($BITS==64) { + foreach $t (@items) { + $d =~ s/\.$t:/\ +\t.section\t".opd","aw"\ +\t.align\t3\ +\t.globl\t$t\ +$t:\ +\t.quad\t.$t,.TOC.\@tocbase,0\ +\t.size\t$t,24\ +\t.previous\n\ +\t.type\t.$t,\@function\ +\t.globl\t.$t\ +.$t:/g; + } + } + else { + foreach $t (@items) { + $d=~s/\.$t/$t/g; + } + } + # hide internal labels to avoid pollution of name table... + $d=~s/Lppcasm_/.Lppcasm_/gm; + print $d; +} + +sub do_aix { + # AIX assembler is smart enough to please the linker without + # making us do something special... + print &data(); +} + +# MacOSX 32 bit +sub do_osx { + $d=&data(); + # Change the bn symbol prefix from '.' to '_' + foreach $t (@items) { + $d=~s/\.$t/_$t/g; + } + # Change .machine to something OS X asm will accept + $d=~s/\.machine.*/.text/g; + $d=~s/\#/;/g; # change comment from '#' to ';' + print $d; +} + +# BSD (Untested) +sub do_bsd { + $d=&data(); + foreach $t (@items) { + $d=~s/\.$t/_$t/g; + } + print $d; +} + +sub data { + local($data)=<<EOF; +#-------------------------------------------------------------------- +# +# +# +# +# File: ppc32.s +# +# Created by: Suresh Chari +# IBM Thomas J. Watson Research Library +# Hawthorne, NY +# +# +# Description: Optimized assembly routines for OpenSSL crypto +# on the 32 bitPowerPC platform. +# +# +# Version History +# +# 2. Fixed bn_add,bn_sub and bn_div_words, added comments, +# cleaned up code. Also made a single version which can +# be used for both the AIX and Linux compilers. See NOTE +# below. +# 12/05/03 Suresh Chari +# (with lots of help from) Andy Polyakov +## +# 1. Initial version 10/20/02 Suresh Chari +# +# +# The following file works for the xlc,cc +# and gcc compilers. +# +# NOTE: To get the file to link correctly with the gcc compiler +# you have to change the names of the routines and remove +# the first .(dot) character. This should automatically +# be done in the build process. +# +# Hand optimized assembly code for the following routines +# +# bn_sqr_comba4 +# bn_sqr_comba8 +# bn_mul_comba4 +# bn_mul_comba8 +# bn_sub_words +# bn_add_words +# bn_div_words +# bn_sqr_words +# bn_mul_words +# bn_mul_add_words +# +# NOTE: It is possible to optimize this code more for +# specific PowerPC or Power architectures. On the Northstar +# architecture the optimizations in this file do +# NOT provide much improvement. +# +# If you have comments or suggestions to improve code send +# me a note at schari\@us.ibm.com +# +#-------------------------------------------------------------------------- +# +# Defines to be used in the assembly code. +# +.set r0,0 # we use it as storage for value of 0 +.set SP,1 # preserved +.set RTOC,2 # preserved +.set r3,3 # 1st argument/return value +.set r4,4 # 2nd argument/volatile register +.set r5,5 # 3rd argument/volatile register +.set r6,6 # ... +.set r7,7 +.set r8,8 +.set r9,9 +.set r10,10 +.set r11,11 +.set r12,12 +.set r13,13 # not used, nor any other "below" it... + +.set BO_IF_NOT,4 +.set BO_IF,12 +.set BO_dCTR_NZERO,16 +.set BO_dCTR_ZERO,18 +.set BO_ALWAYS,20 +.set CR0_LT,0; +.set CR0_GT,1; +.set CR0_EQ,2 +.set CR1_FX,4; +.set CR1_FEX,5; +.set CR1_VX,6 +.set LR,8 + +# Declare function names to be global +# NOTE: For gcc these names MUST be changed to remove +# the first . i.e. for example change ".bn_sqr_comba4" +# to "bn_sqr_comba4". This should be automatically done +# in the build. + + .globl .bn_sqr_comba4 + .globl .bn_sqr_comba8 + .globl .bn_mul_comba4 + .globl .bn_mul_comba8 + .globl .bn_sub_words + .globl .bn_add_words + .globl .bn_div_words + .globl .bn_sqr_words + .globl .bn_mul_words + .globl .bn_mul_add_words + +# .text section + + .machine $ISA + +# +# NOTE: The following label name should be changed to +# "bn_sqr_comba4" i.e. remove the first dot +# for the gcc compiler. This should be automatically +# done in the build +# + +.align 4 +.bn_sqr_comba4: +# +# Optimized version of bn_sqr_comba4. +# +# void bn_sqr_comba4(BN_ULONG *r, BN_ULONG *a) +# r3 contains r +# r4 contains a +# +# Freely use registers r5,r6,r7,r8,r9,r10,r11 as follows: +# +# r5,r6 are the two BN_ULONGs being multiplied. +# r7,r8 are the results of the 32x32 giving 64 bit multiply. +# r9,r10, r11 are the equivalents of c1,c2, c3. +# Here's the assembly +# +# + xor r0,r0,r0 # set r0 = 0. Used in the addze + # instructions below + + #sqr_add_c(a,0,c1,c2,c3) + $LD r5,`0*$BNSZ`(r4) + $UMULL r9,r5,r5 + $UMULH r10,r5,r5 #in first iteration. No need + #to add since c1=c2=c3=0. + # Note c3(r11) is NOT set to 0 + # but will be. + + $ST r9,`0*$BNSZ`(r3) # r[0]=c1; + # sqr_add_c2(a,1,0,c2,c3,c1); + $LD r6,`1*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r7,r7,r7 # compute (r7,r8)=2*(r7,r8) + adde r8,r8,r8 + addze r9,r0 # catch carry if any. + # r9= r0(=0) and carry + + addc r10,r7,r10 # now add to temp result. + addze r11,r8 # r8 added to r11 which is 0 + addze r9,r9 + + $ST r10,`1*$BNSZ`(r3) #r[1]=c2; + #sqr_add_c(a,1,c3,c1,c2) + $UMULL r7,r6,r6 + $UMULH r8,r6,r6 + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r0 + #sqr_add_c2(a,2,0,c3,c1,c2) + $LD r6,`2*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r7,r7,r7 + adde r8,r8,r8 + addze r10,r10 + + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + $ST r11,`2*$BNSZ`(r3) #r[2]=c3 + #sqr_add_c2(a,3,0,c1,c2,c3); + $LD r6,`3*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r7,r7,r7 + adde r8,r8,r8 + addze r11,r0 + + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + #sqr_add_c2(a,2,1,c1,c2,c3); + $LD r5,`1*$BNSZ`(r4) + $LD r6,`2*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r7,r7,r7 + adde r8,r8,r8 + addze r11,r11 + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + $ST r9,`3*$BNSZ`(r3) #r[3]=c1 + #sqr_add_c(a,2,c2,c3,c1); + $UMULL r7,r6,r6 + $UMULH r8,r6,r6 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r0 + #sqr_add_c2(a,3,1,c2,c3,c1); + $LD r6,`3*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r7,r7,r7 + adde r8,r8,r8 + addze r9,r9 + + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + $ST r10,`4*$BNSZ`(r3) #r[4]=c2 + #sqr_add_c2(a,3,2,c3,c1,c2); + $LD r5,`2*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r7,r7,r7 + adde r8,r8,r8 + addze r10,r0 + + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + $ST r11,`5*$BNSZ`(r3) #r[5] = c3 + #sqr_add_c(a,3,c1,c2,c3); + $UMULL r7,r6,r6 + $UMULH r8,r6,r6 + addc r9,r7,r9 + adde r10,r8,r10 + + $ST r9,`6*$BNSZ`(r3) #r[6]=c1 + $ST r10,`7*$BNSZ`(r3) #r[7]=c2 + bclr BO_ALWAYS,CR0_LT + .long 0x00000000 + +# +# NOTE: The following label name should be changed to +# "bn_sqr_comba8" i.e. remove the first dot +# for the gcc compiler. This should be automatically +# done in the build +# + +.align 4 +.bn_sqr_comba8: +# +# This is an optimized version of the bn_sqr_comba8 routine. +# Tightly uses the adde instruction +# +# +# void bn_sqr_comba8(BN_ULONG *r, BN_ULONG *a) +# r3 contains r +# r4 contains a +# +# Freely use registers r5,r6,r7,r8,r9,r10,r11 as follows: +# +# r5,r6 are the two BN_ULONGs being multiplied. +# r7,r8 are the results of the 32x32 giving 64 bit multiply. +# r9,r10, r11 are the equivalents of c1,c2, c3. +# +# Possible optimization of loading all 8 longs of a into registers +# doesnt provide any speedup +# + + xor r0,r0,r0 #set r0 = 0.Used in addze + #instructions below. + + #sqr_add_c(a,0,c1,c2,c3); + $LD r5,`0*$BNSZ`(r4) + $UMULL r9,r5,r5 #1st iteration: no carries. + $UMULH r10,r5,r5 + $ST r9,`0*$BNSZ`(r3) # r[0]=c1; + #sqr_add_c2(a,1,0,c2,c3,c1); + $LD r6,`1*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r10,r7,r10 #add the two register number + adde r11,r8,r0 # (r8,r7) to the three register + addze r9,r0 # number (r9,r11,r10).NOTE:r0=0 + + addc r10,r7,r10 #add the two register number + adde r11,r8,r11 # (r8,r7) to the three register + addze r9,r9 # number (r9,r11,r10). + + $ST r10,`1*$BNSZ`(r3) # r[1]=c2 + + #sqr_add_c(a,1,c3,c1,c2); + $UMULL r7,r6,r6 + $UMULH r8,r6,r6 + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r0 + #sqr_add_c2(a,2,0,c3,c1,c2); + $LD r6,`2*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + + $ST r11,`2*$BNSZ`(r3) #r[2]=c3 + #sqr_add_c2(a,3,0,c1,c2,c3); + $LD r6,`3*$BNSZ`(r4) #r6 = a[3]. r5 is already a[0]. + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r0 + + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + #sqr_add_c2(a,2,1,c1,c2,c3); + $LD r5,`1*$BNSZ`(r4) + $LD r6,`2*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + + $ST r9,`3*$BNSZ`(r3) #r[3]=c1; + #sqr_add_c(a,2,c2,c3,c1); + $UMULL r7,r6,r6 + $UMULH r8,r6,r6 + + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r0 + #sqr_add_c2(a,3,1,c2,c3,c1); + $LD r6,`3*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + #sqr_add_c2(a,4,0,c2,c3,c1); + $LD r5,`0*$BNSZ`(r4) + $LD r6,`4*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + $ST r10,`4*$BNSZ`(r3) #r[4]=c2; + #sqr_add_c2(a,5,0,c3,c1,c2); + $LD r6,`5*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r0 + + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + #sqr_add_c2(a,4,1,c3,c1,c2); + $LD r5,`1*$BNSZ`(r4) + $LD r6,`4*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + #sqr_add_c2(a,3,2,c3,c1,c2); + $LD r5,`2*$BNSZ`(r4) + $LD r6,`3*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + $ST r11,`5*$BNSZ`(r3) #r[5]=c3; + #sqr_add_c(a,3,c1,c2,c3); + $UMULL r7,r6,r6 + $UMULH r8,r6,r6 + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r0 + #sqr_add_c2(a,4,2,c1,c2,c3); + $LD r6,`4*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + #sqr_add_c2(a,5,1,c1,c2,c3); + $LD r5,`1*$BNSZ`(r4) + $LD r6,`5*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + #sqr_add_c2(a,6,0,c1,c2,c3); + $LD r5,`0*$BNSZ`(r4) + $LD r6,`6*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + $ST r9,`6*$BNSZ`(r3) #r[6]=c1; + #sqr_add_c2(a,7,0,c2,c3,c1); + $LD r6,`7*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r0 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + #sqr_add_c2(a,6,1,c2,c3,c1); + $LD r5,`1*$BNSZ`(r4) + $LD r6,`6*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + #sqr_add_c2(a,5,2,c2,c3,c1); + $LD r5,`2*$BNSZ`(r4) + $LD r6,`5*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + #sqr_add_c2(a,4,3,c2,c3,c1); + $LD r5,`3*$BNSZ`(r4) + $LD r6,`4*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + $ST r10,`7*$BNSZ`(r3) #r[7]=c2; + #sqr_add_c(a,4,c3,c1,c2); + $UMULL r7,r6,r6 + $UMULH r8,r6,r6 + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r0 + #sqr_add_c2(a,5,3,c3,c1,c2); + $LD r6,`5*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + #sqr_add_c2(a,6,2,c3,c1,c2); + $LD r5,`2*$BNSZ`(r4) + $LD r6,`6*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + #sqr_add_c2(a,7,1,c3,c1,c2); + $LD r5,`1*$BNSZ`(r4) + $LD r6,`7*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + $ST r11,`8*$BNSZ`(r3) #r[8]=c3; + #sqr_add_c2(a,7,2,c1,c2,c3); + $LD r5,`2*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r0 + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + #sqr_add_c2(a,6,3,c1,c2,c3); + $LD r5,`3*$BNSZ`(r4) + $LD r6,`6*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + #sqr_add_c2(a,5,4,c1,c2,c3); + $LD r5,`4*$BNSZ`(r4) + $LD r6,`5*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + $ST r9,`9*$BNSZ`(r3) #r[9]=c1; + #sqr_add_c(a,5,c2,c3,c1); + $UMULL r7,r6,r6 + $UMULH r8,r6,r6 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r0 + #sqr_add_c2(a,6,4,c2,c3,c1); + $LD r6,`6*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + #sqr_add_c2(a,7,3,c2,c3,c1); + $LD r5,`3*$BNSZ`(r4) + $LD r6,`7*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + $ST r10,`10*$BNSZ`(r3) #r[10]=c2; + #sqr_add_c2(a,7,4,c3,c1,c2); + $LD r5,`4*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r0 + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + #sqr_add_c2(a,6,5,c3,c1,c2); + $LD r5,`5*$BNSZ`(r4) + $LD r6,`6*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + addc r11,r7,r11 + adde r9,r8,r9 + addze r10,r10 + $ST r11,`11*$BNSZ`(r3) #r[11]=c3; + #sqr_add_c(a,6,c1,c2,c3); + $UMULL r7,r6,r6 + $UMULH r8,r6,r6 + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r0 + #sqr_add_c2(a,7,5,c1,c2,c3) + $LD r6,`7*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + addc r9,r7,r9 + adde r10,r8,r10 + addze r11,r11 + $ST r9,`12*$BNSZ`(r3) #r[12]=c1; + + #sqr_add_c2(a,7,6,c2,c3,c1) + $LD r5,`6*$BNSZ`(r4) + $UMULL r7,r5,r6 + $UMULH r8,r5,r6 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r0 + addc r10,r7,r10 + adde r11,r8,r11 + addze r9,r9 + $ST r10,`13*$BNSZ`(r3) #r[13]=c2; + #sqr_add_c(a,7,c3,c1,c2); + $UMULL r7,r6,r6 + $UMULH r8,r6,r6 + addc r11,r7,r11 + adde r9,r8,r9 + $ST r11,`14*$BNSZ`(r3) #r[14]=c3; + $ST r9, `15*$BNSZ`(r3) #r[15]=c1; + + + bclr BO_ALWAYS,CR0_LT + + .long 0x00000000 + +# +# NOTE: The following label name should be changed to +# "bn_mul_comba4" i.e. remove the first dot +# for the gcc compiler. This should be automatically +# done in the build +# + +.align 4 +.bn_mul_comba4: +# +# This is an optimized version of the bn_mul_comba4 routine. +# +# void bn_mul_comba4(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b) +# r3 contains r +# r4 contains a +# r5 contains b +# r6, r7 are the 2 BN_ULONGs being multiplied. +# r8, r9 are the results of the 32x32 giving 64 multiply. +# r10, r11, r12 are the equivalents of c1, c2, and c3. +# + xor r0,r0,r0 #r0=0. Used in addze below. + #mul_add_c(a[0],b[0],c1,c2,c3); + $LD r6,`0*$BNSZ`(r4) + $LD r7,`0*$BNSZ`(r5) + $UMULL r10,r6,r7 + $UMULH r11,r6,r7 + $ST r10,`0*$BNSZ`(r3) #r[0]=c1 + #mul_add_c(a[0],b[1],c2,c3,c1); + $LD r7,`1*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r8,r11 + adde r12,r9,r0 + addze r10,r0 + #mul_add_c(a[1],b[0],c2,c3,c1); + $LD r6, `1*$BNSZ`(r4) + $LD r7, `0*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r8,r11 + adde r12,r9,r12 + addze r10,r10 + $ST r11,`1*$BNSZ`(r3) #r[1]=c2 + #mul_add_c(a[2],b[0],c3,c1,c2); + $LD r6,`2*$BNSZ`(r4) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r8,r12 + adde r10,r9,r10 + addze r11,r0 + #mul_add_c(a[1],b[1],c3,c1,c2); + $LD r6,`1*$BNSZ`(r4) + $LD r7,`1*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r8,r12 + adde r10,r9,r10 + addze r11,r11 + #mul_add_c(a[0],b[2],c3,c1,c2); + $LD r6,`0*$BNSZ`(r4) + $LD r7,`2*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r8,r12 + adde r10,r9,r10 + addze r11,r11 + $ST r12,`2*$BNSZ`(r3) #r[2]=c3 + #mul_add_c(a[0],b[3],c1,c2,c3); + $LD r7,`3*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r8,r10 + adde r11,r9,r11 + addze r12,r0 + #mul_add_c(a[1],b[2],c1,c2,c3); + $LD r6,`1*$BNSZ`(r4) + $LD r7,`2*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r8,r10 + adde r11,r9,r11 + addze r12,r12 + #mul_add_c(a[2],b[1],c1,c2,c3); + $LD r6,`2*$BNSZ`(r4) + $LD r7,`1*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r8,r10 + adde r11,r9,r11 + addze r12,r12 + #mul_add_c(a[3],b[0],c1,c2,c3); + $LD r6,`3*$BNSZ`(r4) + $LD r7,`0*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r8,r10 + adde r11,r9,r11 + addze r12,r12 + $ST r10,`3*$BNSZ`(r3) #r[3]=c1 + #mul_add_c(a[3],b[1],c2,c3,c1); + $LD r7,`1*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r8,r11 + adde r12,r9,r12 + addze r10,r0 + #mul_add_c(a[2],b[2],c2,c3,c1); + $LD r6,`2*$BNSZ`(r4) + $LD r7,`2*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r8,r11 + adde r12,r9,r12 + addze r10,r10 + #mul_add_c(a[1],b[3],c2,c3,c1); + $LD r6,`1*$BNSZ`(r4) + $LD r7,`3*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r8,r11 + adde r12,r9,r12 + addze r10,r10 + $ST r11,`4*$BNSZ`(r3) #r[4]=c2 + #mul_add_c(a[2],b[3],c3,c1,c2); + $LD r6,`2*$BNSZ`(r4) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r8,r12 + adde r10,r9,r10 + addze r11,r0 + #mul_add_c(a[3],b[2],c3,c1,c2); + $LD r6,`3*$BNSZ`(r4) + $LD r7,`2*$BNSZ`(r4) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r8,r12 + adde r10,r9,r10 + addze r11,r11 + $ST r12,`5*$BNSZ`(r3) #r[5]=c3 + #mul_add_c(a[3],b[3],c1,c2,c3); + $LD r7,`3*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r8,r10 + adde r11,r9,r11 + + $ST r10,`6*$BNSZ`(r3) #r[6]=c1 + $ST r11,`7*$BNSZ`(r3) #r[7]=c2 + bclr BO_ALWAYS,CR0_LT + .long 0x00000000 + +# +# NOTE: The following label name should be changed to +# "bn_mul_comba8" i.e. remove the first dot +# for the gcc compiler. This should be automatically +# done in the build +# + +.align 4 +.bn_mul_comba8: +# +# Optimized version of the bn_mul_comba8 routine. +# +# void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b) +# r3 contains r +# r4 contains a +# r5 contains b +# r6, r7 are the 2 BN_ULONGs being multiplied. +# r8, r9 are the results of the 32x32 giving 64 multiply. +# r10, r11, r12 are the equivalents of c1, c2, and c3. +# + xor r0,r0,r0 #r0=0. Used in addze below. + + #mul_add_c(a[0],b[0],c1,c2,c3); + $LD r6,`0*$BNSZ`(r4) #a[0] + $LD r7,`0*$BNSZ`(r5) #b[0] + $UMULL r10,r6,r7 + $UMULH r11,r6,r7 + $ST r10,`0*$BNSZ`(r3) #r[0]=c1; + #mul_add_c(a[0],b[1],c2,c3,c1); + $LD r7,`1*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + addze r12,r9 # since we didnt set r12 to zero before. + addze r10,r0 + #mul_add_c(a[1],b[0],c2,c3,c1); + $LD r6,`1*$BNSZ`(r4) + $LD r7,`0*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + $ST r11,`1*$BNSZ`(r3) #r[1]=c2; + #mul_add_c(a[2],b[0],c3,c1,c2); + $LD r6,`2*$BNSZ`(r4) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r0 + #mul_add_c(a[1],b[1],c3,c1,c2); + $LD r6,`1*$BNSZ`(r4) + $LD r7,`1*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + #mul_add_c(a[0],b[2],c3,c1,c2); + $LD r6,`0*$BNSZ`(r4) + $LD r7,`2*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + $ST r12,`2*$BNSZ`(r3) #r[2]=c3; + #mul_add_c(a[0],b[3],c1,c2,c3); + $LD r7,`3*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r0 + #mul_add_c(a[1],b[2],c1,c2,c3); + $LD r6,`1*$BNSZ`(r4) + $LD r7,`2*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + + #mul_add_c(a[2],b[1],c1,c2,c3); + $LD r6,`2*$BNSZ`(r4) + $LD r7,`1*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + #mul_add_c(a[3],b[0],c1,c2,c3); + $LD r6,`3*$BNSZ`(r4) + $LD r7,`0*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + $ST r10,`3*$BNSZ`(r3) #r[3]=c1; + #mul_add_c(a[4],b[0],c2,c3,c1); + $LD r6,`4*$BNSZ`(r4) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r0 + #mul_add_c(a[3],b[1],c2,c3,c1); + $LD r6,`3*$BNSZ`(r4) + $LD r7,`1*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + #mul_add_c(a[2],b[2],c2,c3,c1); + $LD r6,`2*$BNSZ`(r4) + $LD r7,`2*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + #mul_add_c(a[1],b[3],c2,c3,c1); + $LD r6,`1*$BNSZ`(r4) + $LD r7,`3*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + #mul_add_c(a[0],b[4],c2,c3,c1); + $LD r6,`0*$BNSZ`(r4) + $LD r7,`4*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + $ST r11,`4*$BNSZ`(r3) #r[4]=c2; + #mul_add_c(a[0],b[5],c3,c1,c2); + $LD r7,`5*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r0 + #mul_add_c(a[1],b[4],c3,c1,c2); + $LD r6,`1*$BNSZ`(r4) + $LD r7,`4*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + #mul_add_c(a[2],b[3],c3,c1,c2); + $LD r6,`2*$BNSZ`(r4) + $LD r7,`3*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + #mul_add_c(a[3],b[2],c3,c1,c2); + $LD r6,`3*$BNSZ`(r4) + $LD r7,`2*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + #mul_add_c(a[4],b[1],c3,c1,c2); + $LD r6,`4*$BNSZ`(r4) + $LD r7,`1*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + #mul_add_c(a[5],b[0],c3,c1,c2); + $LD r6,`5*$BNSZ`(r4) + $LD r7,`0*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + $ST r12,`5*$BNSZ`(r3) #r[5]=c3; + #mul_add_c(a[6],b[0],c1,c2,c3); + $LD r6,`6*$BNSZ`(r4) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r0 + #mul_add_c(a[5],b[1],c1,c2,c3); + $LD r6,`5*$BNSZ`(r4) + $LD r7,`1*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + #mul_add_c(a[4],b[2],c1,c2,c3); + $LD r6,`4*$BNSZ`(r4) + $LD r7,`2*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + #mul_add_c(a[3],b[3],c1,c2,c3); + $LD r6,`3*$BNSZ`(r4) + $LD r7,`3*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + #mul_add_c(a[2],b[4],c1,c2,c3); + $LD r6,`2*$BNSZ`(r4) + $LD r7,`4*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + #mul_add_c(a[1],b[5],c1,c2,c3); + $LD r6,`1*$BNSZ`(r4) + $LD r7,`5*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + #mul_add_c(a[0],b[6],c1,c2,c3); + $LD r6,`0*$BNSZ`(r4) + $LD r7,`6*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + $ST r10,`6*$BNSZ`(r3) #r[6]=c1; + #mul_add_c(a[0],b[7],c2,c3,c1); + $LD r7,`7*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r0 + #mul_add_c(a[1],b[6],c2,c3,c1); + $LD r6,`1*$BNSZ`(r4) + $LD r7,`6*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + #mul_add_c(a[2],b[5],c2,c3,c1); + $LD r6,`2*$BNSZ`(r4) + $LD r7,`5*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + #mul_add_c(a[3],b[4],c2,c3,c1); + $LD r6,`3*$BNSZ`(r4) + $LD r7,`4*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + #mul_add_c(a[4],b[3],c2,c3,c1); + $LD r6,`4*$BNSZ`(r4) + $LD r7,`3*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + #mul_add_c(a[5],b[2],c2,c3,c1); + $LD r6,`5*$BNSZ`(r4) + $LD r7,`2*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + #mul_add_c(a[6],b[1],c2,c3,c1); + $LD r6,`6*$BNSZ`(r4) + $LD r7,`1*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + #mul_add_c(a[7],b[0],c2,c3,c1); + $LD r6,`7*$BNSZ`(r4) + $LD r7,`0*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + $ST r11,`7*$BNSZ`(r3) #r[7]=c2; + #mul_add_c(a[7],b[1],c3,c1,c2); + $LD r7,`1*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r0 + #mul_add_c(a[6],b[2],c3,c1,c2); + $LD r6,`6*$BNSZ`(r4) + $LD r7,`2*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + #mul_add_c(a[5],b[3],c3,c1,c2); + $LD r6,`5*$BNSZ`(r4) + $LD r7,`3*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + #mul_add_c(a[4],b[4],c3,c1,c2); + $LD r6,`4*$BNSZ`(r4) + $LD r7,`4*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + #mul_add_c(a[3],b[5],c3,c1,c2); + $LD r6,`3*$BNSZ`(r4) + $LD r7,`5*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + #mul_add_c(a[2],b[6],c3,c1,c2); + $LD r6,`2*$BNSZ`(r4) + $LD r7,`6*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + #mul_add_c(a[1],b[7],c3,c1,c2); + $LD r6,`1*$BNSZ`(r4) + $LD r7,`7*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + $ST r12,`8*$BNSZ`(r3) #r[8]=c3; + #mul_add_c(a[2],b[7],c1,c2,c3); + $LD r6,`2*$BNSZ`(r4) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r0 + #mul_add_c(a[3],b[6],c1,c2,c3); + $LD r6,`3*$BNSZ`(r4) + $LD r7,`6*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + #mul_add_c(a[4],b[5],c1,c2,c3); + $LD r6,`4*$BNSZ`(r4) + $LD r7,`5*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + #mul_add_c(a[5],b[4],c1,c2,c3); + $LD r6,`5*$BNSZ`(r4) + $LD r7,`4*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + #mul_add_c(a[6],b[3],c1,c2,c3); + $LD r6,`6*$BNSZ`(r4) + $LD r7,`3*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + #mul_add_c(a[7],b[2],c1,c2,c3); + $LD r6,`7*$BNSZ`(r4) + $LD r7,`2*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + $ST r10,`9*$BNSZ`(r3) #r[9]=c1; + #mul_add_c(a[7],b[3],c2,c3,c1); + $LD r7,`3*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r0 + #mul_add_c(a[6],b[4],c2,c3,c1); + $LD r6,`6*$BNSZ`(r4) + $LD r7,`4*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + #mul_add_c(a[5],b[5],c2,c3,c1); + $LD r6,`5*$BNSZ`(r4) + $LD r7,`5*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + #mul_add_c(a[4],b[6],c2,c3,c1); + $LD r6,`4*$BNSZ`(r4) + $LD r7,`6*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + #mul_add_c(a[3],b[7],c2,c3,c1); + $LD r6,`3*$BNSZ`(r4) + $LD r7,`7*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + $ST r11,`10*$BNSZ`(r3) #r[10]=c2; + #mul_add_c(a[4],b[7],c3,c1,c2); + $LD r6,`4*$BNSZ`(r4) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r0 + #mul_add_c(a[5],b[6],c3,c1,c2); + $LD r6,`5*$BNSZ`(r4) + $LD r7,`6*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + #mul_add_c(a[6],b[5],c3,c1,c2); + $LD r6,`6*$BNSZ`(r4) + $LD r7,`5*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + #mul_add_c(a[7],b[4],c3,c1,c2); + $LD r6,`7*$BNSZ`(r4) + $LD r7,`4*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + addze r11,r11 + $ST r12,`11*$BNSZ`(r3) #r[11]=c3; + #mul_add_c(a[7],b[5],c1,c2,c3); + $LD r7,`5*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r0 + #mul_add_c(a[6],b[6],c1,c2,c3); + $LD r6,`6*$BNSZ`(r4) + $LD r7,`6*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + #mul_add_c(a[5],b[7],c1,c2,c3); + $LD r6,`5*$BNSZ`(r4) + $LD r7,`7*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r10,r10,r8 + adde r11,r11,r9 + addze r12,r12 + $ST r10,`12*$BNSZ`(r3) #r[12]=c1; + #mul_add_c(a[6],b[7],c2,c3,c1); + $LD r6,`6*$BNSZ`(r4) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r0 + #mul_add_c(a[7],b[6],c2,c3,c1); + $LD r6,`7*$BNSZ`(r4) + $LD r7,`6*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r11,r11,r8 + adde r12,r12,r9 + addze r10,r10 + $ST r11,`13*$BNSZ`(r3) #r[13]=c2; + #mul_add_c(a[7],b[7],c3,c1,c2); + $LD r7,`7*$BNSZ`(r5) + $UMULL r8,r6,r7 + $UMULH r9,r6,r7 + addc r12,r12,r8 + adde r10,r10,r9 + $ST r12,`14*$BNSZ`(r3) #r[14]=c3; + $ST r10,`15*$BNSZ`(r3) #r[15]=c1; + bclr BO_ALWAYS,CR0_LT + .long 0x00000000 + +# +# NOTE: The following label name should be changed to +# "bn_sub_words" i.e. remove the first dot +# for the gcc compiler. This should be automatically +# done in the build +# +# +.align 4 +.bn_sub_words: +# +# Handcoded version of bn_sub_words +# +#BN_ULONG bn_sub_words(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n) +# +# r3 = r +# r4 = a +# r5 = b +# r6 = n +# +# Note: No loop unrolling done since this is not a performance +# critical loop. + + xor r0,r0,r0 #set r0 = 0 +# +# check for r6 = 0 AND set carry bit. +# + subfc. r7,r0,r6 # If r6 is 0 then result is 0. + # if r6 > 0 then result !=0 + # In either case carry bit is set. + bc BO_IF,CR0_EQ,Lppcasm_sub_adios + addi r4,r4,-$BNSZ + addi r3,r3,-$BNSZ + addi r5,r5,-$BNSZ + mtctr r6 +Lppcasm_sub_mainloop: + $LDU r7,$BNSZ(r4) + $LDU r8,$BNSZ(r5) + subfe r6,r8,r7 # r6 = r7+carry bit + onescomplement(r8) + # if carry = 1 this is r7-r8. Else it + # is r7-r8 -1 as we need. + $STU r6,$BNSZ(r3) + bc BO_dCTR_NZERO,CR0_EQ,Lppcasm_sub_mainloop +Lppcasm_sub_adios: + subfze r3,r0 # if carry bit is set then r3 = 0 else -1 + andi. r3,r3,1 # keep only last bit. + bclr BO_ALWAYS,CR0_LT + .long 0x00000000 + + +# +# NOTE: The following label name should be changed to +# "bn_add_words" i.e. remove the first dot +# for the gcc compiler. This should be automatically +# done in the build +# + +.align 4 +.bn_add_words: +# +# Handcoded version of bn_add_words +# +#BN_ULONG bn_add_words(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n) +# +# r3 = r +# r4 = a +# r5 = b +# r6 = n +# +# Note: No loop unrolling done since this is not a performance +# critical loop. + + xor r0,r0,r0 +# +# check for r6 = 0. Is this needed? +# + addic. r6,r6,0 #test r6 and clear carry bit. + bc BO_IF,CR0_EQ,Lppcasm_add_adios + addi r4,r4,-$BNSZ + addi r3,r3,-$BNSZ + addi r5,r5,-$BNSZ + mtctr r6 +Lppcasm_add_mainloop: + $LDU r7,$BNSZ(r4) + $LDU r8,$BNSZ(r5) + adde r8,r7,r8 + $STU r8,$BNSZ(r3) + bc BO_dCTR_NZERO,CR0_EQ,Lppcasm_add_mainloop +Lppcasm_add_adios: + addze r3,r0 #return carry bit. + bclr BO_ALWAYS,CR0_LT + .long 0x00000000 + +# +# NOTE: The following label name should be changed to +# "bn_div_words" i.e. remove the first dot +# for the gcc compiler. This should be automatically +# done in the build +# + +.align 4 +.bn_div_words: +# +# This is a cleaned up version of code generated by +# the AIX compiler. The only optimization is to use +# the PPC instruction to count leading zeros instead +# of call to num_bits_word. Since this was compiled +# only at level -O2 we can possibly squeeze it more? +# +# r3 = h +# r4 = l +# r5 = d + + $UCMPI 0,r5,0 # compare r5 and 0 + bc BO_IF_NOT,CR0_EQ,Lppcasm_div1 # proceed if d!=0 + li r3,-1 # d=0 return -1 + bclr BO_ALWAYS,CR0_LT +Lppcasm_div1: + xor r0,r0,r0 #r0=0 + li r8,$BITS + $CNTLZ. r7,r5 #r7 = num leading 0s in d. + bc BO_IF,CR0_EQ,Lppcasm_div2 #proceed if no leading zeros + subf r8,r7,r8 #r8 = BN_num_bits_word(d) + $SHR. r9,r3,r8 #are there any bits above r8'th? + $TR 16,r9,r0 #if there're, signal to dump core... +Lppcasm_div2: + $UCMP 0,r3,r5 #h>=d? + bc BO_IF,CR0_LT,Lppcasm_div3 #goto Lppcasm_div3 if not + subf r3,r5,r3 #h-=d ; +Lppcasm_div3: #r7 = BN_BITS2-i. so r7=i + cmpi 0,0,r7,0 # is (i == 0)? + bc BO_IF,CR0_EQ,Lppcasm_div4 + $SHL r3,r3,r7 # h = (h<< i) + $SHR r8,r4,r8 # r8 = (l >> BN_BITS2 -i) + $SHL r5,r5,r7 # d<<=i + or r3,r3,r8 # h = (h<<i)|(l>>(BN_BITS2-i)) + $SHL r4,r4,r7 # l <<=i +Lppcasm_div4: + $SHRI r9,r5,`$BITS/2` # r9 = dh + # dl will be computed when needed + # as it saves registers. + li r6,2 #r6=2 + mtctr r6 #counter will be in count. +Lppcasm_divouterloop: + $SHRI r8,r3,`$BITS/2` #r8 = (h>>BN_BITS4) + $SHRI r11,r4,`$BITS/2` #r11= (l&BN_MASK2h)>>BN_BITS4 + # compute here for innerloop. + $UCMP 0,r8,r9 # is (h>>BN_BITS4)==dh + bc BO_IF_NOT,CR0_EQ,Lppcasm_div5 # goto Lppcasm_div5 if not + + li r8,-1 + $CLRU r8,r8,`$BITS/2` #q = BN_MASK2l + b Lppcasm_div6 +Lppcasm_div5: + $UDIV r8,r3,r9 #q = h/dh +Lppcasm_div6: + $UMULL r12,r9,r8 #th = q*dh + $CLRU r10,r5,`$BITS/2` #r10=dl + $UMULL r6,r8,r10 #tl = q*dl + +Lppcasm_divinnerloop: + subf r10,r12,r3 #t = h -th + $SHRI r7,r10,`$BITS/2` #r7= (t &BN_MASK2H), sort of... + addic. r7,r7,0 #test if r7 == 0. used below. + # now want to compute + # r7 = (t<<BN_BITS4)|((l&BN_MASK2h)>>BN_BITS4) + # the following 2 instructions do that + $SHLI r7,r10,`$BITS/2` # r7 = (t<<BN_BITS4) + or r7,r7,r11 # r7|=((l&BN_MASK2h)>>BN_BITS4) + $UCMP 1,r6,r7 # compare (tl <= r7) + bc BO_IF_NOT,CR0_EQ,Lppcasm_divinnerexit + bc BO_IF_NOT,CR1_FEX,Lppcasm_divinnerexit + addi r8,r8,-1 #q-- + subf r12,r9,r12 #th -=dh + $CLRU r10,r5,`$BITS/2` #r10=dl. t is no longer needed in loop. + subf r6,r10,r6 #tl -=dl + b Lppcasm_divinnerloop +Lppcasm_divinnerexit: + $SHRI r10,r6,`$BITS/2` #t=(tl>>BN_BITS4) + $SHLI r11,r6,`$BITS/2` #tl=(tl<<BN_BITS4)&BN_MASK2h; + $UCMP 1,r4,r11 # compare l and tl + add r12,r12,r10 # th+=t + bc BO_IF_NOT,CR1_FX,Lppcasm_div7 # if (l>=tl) goto Lppcasm_div7 + addi r12,r12,1 # th++ +Lppcasm_div7: + subf r11,r11,r4 #r11=l-tl + $UCMP 1,r3,r12 #compare h and th + bc BO_IF_NOT,CR1_FX,Lppcasm_div8 #if (h>=th) goto Lppcasm_div8 + addi r8,r8,-1 # q-- + add r3,r5,r3 # h+=d +Lppcasm_div8: + subf r12,r12,r3 #r12 = h-th + $SHLI r4,r11,`$BITS/2` #l=(l&BN_MASK2l)<<BN_BITS4 + # want to compute + # h = ((h<<BN_BITS4)|(l>>BN_BITS4))&BN_MASK2 + # the following 2 instructions will do this. + $INSR r11,r12,`$BITS/2`,`$BITS/2` # r11 is the value we want rotated $BITS/2. + $ROTL r3,r11,`$BITS/2` # rotate by $BITS/2 and store in r3 + bc BO_dCTR_ZERO,CR0_EQ,Lppcasm_div9#if (count==0) break ; + $SHLI r0,r8,`$BITS/2` #ret =q<<BN_BITS4 + b Lppcasm_divouterloop +Lppcasm_div9: + or r3,r8,r0 + bclr BO_ALWAYS,CR0_LT + .long 0x00000000 + +# +# NOTE: The following label name should be changed to +# "bn_sqr_words" i.e. remove the first dot +# for the gcc compiler. This should be automatically +# done in the build +# +.align 4 +.bn_sqr_words: +# +# Optimized version of bn_sqr_words +# +# void bn_sqr_words(BN_ULONG *r, BN_ULONG *a, int n) +# +# r3 = r +# r4 = a +# r5 = n +# +# r6 = a[i]. +# r7,r8 = product. +# +# No unrolling done here. Not performance critical. + + addic. r5,r5,0 #test r5. + bc BO_IF,CR0_EQ,Lppcasm_sqr_adios + addi r4,r4,-$BNSZ + addi r3,r3,-$BNSZ + mtctr r5 +Lppcasm_sqr_mainloop: + #sqr(r[0],r[1],a[0]); + $LDU r6,$BNSZ(r4) + $UMULL r7,r6,r6 + $UMULH r8,r6,r6 + $STU r7,$BNSZ(r3) + $STU r8,$BNSZ(r3) + bc BO_dCTR_NZERO,CR0_EQ,Lppcasm_sqr_mainloop +Lppcasm_sqr_adios: + bclr BO_ALWAYS,CR0_LT + .long 0x00000000 + + +# +# NOTE: The following label name should be changed to +# "bn_mul_words" i.e. remove the first dot +# for the gcc compiler. This should be automatically +# done in the build +# + +.align 4 +.bn_mul_words: +# +# BN_ULONG bn_mul_words(BN_ULONG *rp, BN_ULONG *ap, int num, BN_ULONG w) +# +# r3 = rp +# r4 = ap +# r5 = num +# r6 = w + xor r0,r0,r0 + xor r12,r12,r12 # used for carry + rlwinm. r7,r5,30,2,31 # num >> 2 + bc BO_IF,CR0_EQ,Lppcasm_mw_REM + mtctr r7 +Lppcasm_mw_LOOP: + #mul(rp[0],ap[0],w,c1); + $LD r8,`0*$BNSZ`(r4) + $UMULL r9,r6,r8 + $UMULH r10,r6,r8 + addc r9,r9,r12 + #addze r10,r10 #carry is NOT ignored. + #will be taken care of + #in second spin below + #using adde. + $ST r9,`0*$BNSZ`(r3) + #mul(rp[1],ap[1],w,c1); + $LD r8,`1*$BNSZ`(r4) + $UMULL r11,r6,r8 + $UMULH r12,r6,r8 + adde r11,r11,r10 + #addze r12,r12 + $ST r11,`1*$BNSZ`(r3) + #mul(rp[2],ap[2],w,c1); + $LD r8,`2*$BNSZ`(r4) + $UMULL r9,r6,r8 + $UMULH r10,r6,r8 + adde r9,r9,r12 + #addze r10,r10 + $ST r9,`2*$BNSZ`(r3) + #mul_add(rp[3],ap[3],w,c1); + $LD r8,`3*$BNSZ`(r4) + $UMULL r11,r6,r8 + $UMULH r12,r6,r8 + adde r11,r11,r10 + addze r12,r12 #this spin we collect carry into + #r12 + $ST r11,`3*$BNSZ`(r3) + + addi r3,r3,`4*$BNSZ` + addi r4,r4,`4*$BNSZ` + bc BO_dCTR_NZERO,CR0_EQ,Lppcasm_mw_LOOP + +Lppcasm_mw_REM: + andi. r5,r5,0x3 + bc BO_IF,CR0_EQ,Lppcasm_mw_OVER + #mul(rp[0],ap[0],w,c1); + $LD r8,`0*$BNSZ`(r4) + $UMULL r9,r6,r8 + $UMULH r10,r6,r8 + addc r9,r9,r12 + addze r10,r10 + $ST r9,`0*$BNSZ`(r3) + addi r12,r10,0 + + addi r5,r5,-1 + cmpli 0,0,r5,0 + bc BO_IF,CR0_EQ,Lppcasm_mw_OVER + + + #mul(rp[1],ap[1],w,c1); + $LD r8,`1*$BNSZ`(r4) + $UMULL r9,r6,r8 + $UMULH r10,r6,r8 + addc r9,r9,r12 + addze r10,r10 + $ST r9,`1*$BNSZ`(r3) + addi r12,r10,0 + + addi r5,r5,-1 + cmpli 0,0,r5,0 + bc BO_IF,CR0_EQ,Lppcasm_mw_OVER + + #mul_add(rp[2],ap[2],w,c1); + $LD r8,`2*$BNSZ`(r4) + $UMULL r9,r6,r8 + $UMULH r10,r6,r8 + addc r9,r9,r12 + addze r10,r10 + $ST r9,`2*$BNSZ`(r3) + addi r12,r10,0 + +Lppcasm_mw_OVER: + addi r3,r12,0 + bclr BO_ALWAYS,CR0_LT + .long 0x00000000 + +# +# NOTE: The following label name should be changed to +# "bn_mul_add_words" i.e. remove the first dot +# for the gcc compiler. This should be automatically +# done in the build +# + +.align 4 +.bn_mul_add_words: +# +# BN_ULONG bn_mul_add_words(BN_ULONG *rp, BN_ULONG *ap, int num, BN_ULONG w) +# +# r3 = rp +# r4 = ap +# r5 = num +# r6 = w +# +# empirical evidence suggests that unrolled version performs best!! +# + xor r0,r0,r0 #r0 = 0 + xor r12,r12,r12 #r12 = 0 . used for carry + rlwinm. r7,r5,30,2,31 # num >> 2 + bc BO_IF,CR0_EQ,Lppcasm_maw_leftover # if (num < 4) go LPPCASM_maw_leftover + mtctr r7 +Lppcasm_maw_mainloop: + #mul_add(rp[0],ap[0],w,c1); + $LD r8,`0*$BNSZ`(r4) + $LD r11,`0*$BNSZ`(r3) + $UMULL r9,r6,r8 + $UMULH r10,r6,r8 + addc r9,r9,r12 #r12 is carry. + addze r10,r10 + addc r9,r9,r11 + #addze r10,r10 + #the above instruction addze + #is NOT needed. Carry will NOT + #be ignored. It's not affected + #by multiply and will be collected + #in the next spin + $ST r9,`0*$BNSZ`(r3) + + #mul_add(rp[1],ap[1],w,c1); + $LD r8,`1*$BNSZ`(r4) + $LD r9,`1*$BNSZ`(r3) + $UMULL r11,r6,r8 + $UMULH r12,r6,r8 + adde r11,r11,r10 #r10 is carry. + addze r12,r12 + addc r11,r11,r9 + #addze r12,r12 + $ST r11,`1*$BNSZ`(r3) + + #mul_add(rp[2],ap[2],w,c1); + $LD r8,`2*$BNSZ`(r4) + $UMULL r9,r6,r8 + $LD r11,`2*$BNSZ`(r3) + $UMULH r10,r6,r8 + adde r9,r9,r12 + addze r10,r10 + addc r9,r9,r11 + #addze r10,r10 + $ST r9,`2*$BNSZ`(r3) + + #mul_add(rp[3],ap[3],w,c1); + $LD r8,`3*$BNSZ`(r4) + $UMULL r11,r6,r8 + $LD r9,`3*$BNSZ`(r3) + $UMULH r12,r6,r8 + adde r11,r11,r10 + addze r12,r12 + addc r11,r11,r9 + addze r12,r12 + $ST r11,`3*$BNSZ`(r3) + addi r3,r3,`4*$BNSZ` + addi r4,r4,`4*$BNSZ` + bc BO_dCTR_NZERO,CR0_EQ,Lppcasm_maw_mainloop + +Lppcasm_maw_leftover: + andi. r5,r5,0x3 + bc BO_IF,CR0_EQ,Lppcasm_maw_adios + addi r3,r3,-$BNSZ + addi r4,r4,-$BNSZ + #mul_add(rp[0],ap[0],w,c1); + mtctr r5 + $LDU r8,$BNSZ(r4) + $UMULL r9,r6,r8 + $UMULH r10,r6,r8 + $LDU r11,$BNSZ(r3) + addc r9,r9,r11 + addze r10,r10 + addc r9,r9,r12 + addze r12,r10 + $ST r9,0(r3) + + bc BO_dCTR_ZERO,CR0_EQ,Lppcasm_maw_adios + #mul_add(rp[1],ap[1],w,c1); + $LDU r8,$BNSZ(r4) + $UMULL r9,r6,r8 + $UMULH r10,r6,r8 + $LDU r11,$BNSZ(r3) + addc r9,r9,r11 + addze r10,r10 + addc r9,r9,r12 + addze r12,r10 + $ST r9,0(r3) + + bc BO_dCTR_ZERO,CR0_EQ,Lppcasm_maw_adios + #mul_add(rp[2],ap[2],w,c1); + $LDU r8,$BNSZ(r4) + $UMULL r9,r6,r8 + $UMULH r10,r6,r8 + $LDU r11,$BNSZ(r3) + addc r9,r9,r11 + addze r10,r10 + addc r9,r9,r12 + addze r12,r10 + $ST r9,0(r3) + +Lppcasm_maw_adios: + addi r3,r12,0 + bclr BO_ALWAYS,CR0_LT + .long 0x00000000 + .align 4 +EOF + $data =~ s/\`([^\`]*)\`/eval $1/gem; + + # if some assembler chokes on some simplified mnemonic, + # this is the spot to fix it up, e.g.: + # GNU as doesn't seem to accept cmplw, 32-bit unsigned compare + $data =~ s/^(\s*)cmplw(\s+)([^,]+),(.*)/$1cmpl$2$3,0,$4/gm; + # assembler X doesn't accept li, load immediate value + #$data =~ s/^(\s*)li(\s+)([^,]+),(.*)/$1addi$2$3,0,$4/gm; + return($data); +} |