1998 lines
44 KiB
Raku
1998 lines
44 KiB
Raku
#!/usr/bin/env perl
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#
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# Implemented as a Perl wrapper as we want to support several different
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# architectures with single file. We pick up the target based on the
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# file name we are asked to generate.
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#
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# It should be noted though that this perl code is nothing like
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# <openssl>/crypto/perlasm/x86*. In this case perl is used pretty much
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# as pre-processor to cover for platform differences in name decoration,
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# linker tables, 32-/64-bit instruction sets...
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#
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# As you might know there're several PowerPC ABI in use. Most notably
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# Linux and AIX use different 32-bit ABIs. Good news are that these ABIs
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# are similar enough to implement leaf(!) functions, which would be ABI
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# neutral. And that's what you find here: ABI neutral leaf functions.
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# In case you wonder what that is...
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#
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# AIX performance
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#
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# MEASUREMENTS WITH cc ON a 200 MhZ PowerPC 604e.
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#
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# The following is the performance of 32-bit compiler
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# generated code:
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#
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# OpenSSL 0.9.6c 21 dec 2001
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# built on: Tue Jun 11 11:06:51 EDT 2002
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# options:bn(64,32) ...
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#compiler: cc -DTHREADS -DAIX -DB_ENDIAN -DBN_LLONG -O3
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# sign verify sign/s verify/s
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#rsa 512 bits 0.0098s 0.0009s 102.0 1170.6
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#rsa 1024 bits 0.0507s 0.0026s 19.7 387.5
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#rsa 2048 bits 0.3036s 0.0085s 3.3 117.1
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#rsa 4096 bits 2.0040s 0.0299s 0.5 33.4
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#dsa 512 bits 0.0087s 0.0106s 114.3 94.5
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#dsa 1024 bits 0.0256s 0.0313s 39.0 32.0
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#
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# Same bechmark with this assembler code:
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#
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#rsa 512 bits 0.0056s 0.0005s 178.6 2049.2
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#rsa 1024 bits 0.0283s 0.0015s 35.3 674.1
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#rsa 2048 bits 0.1744s 0.0050s 5.7 201.2
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#rsa 4096 bits 1.1644s 0.0179s 0.9 55.7
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#dsa 512 bits 0.0052s 0.0062s 191.6 162.0
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#dsa 1024 bits 0.0149s 0.0180s 67.0 55.5
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#
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# Number of operations increases by at almost 75%
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#
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# Here are performance numbers for 64-bit compiler
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# generated code:
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#
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# OpenSSL 0.9.6g [engine] 9 Aug 2002
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# built on: Fri Apr 18 16:59:20 EDT 2003
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# options:bn(64,64) ...
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# compiler: cc -DTHREADS -D_REENTRANT -q64 -DB_ENDIAN -O3
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# sign verify sign/s verify/s
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#rsa 512 bits 0.0028s 0.0003s 357.1 3844.4
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#rsa 1024 bits 0.0148s 0.0008s 67.5 1239.7
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#rsa 2048 bits 0.0963s 0.0028s 10.4 353.0
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#rsa 4096 bits 0.6538s 0.0102s 1.5 98.1
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#dsa 512 bits 0.0026s 0.0032s 382.5 313.7
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#dsa 1024 bits 0.0081s 0.0099s 122.8 100.6
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#
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# Same benchmark with this assembler code:
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#
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#rsa 512 bits 0.0020s 0.0002s 510.4 6273.7
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#rsa 1024 bits 0.0088s 0.0005s 114.1 2128.3
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#rsa 2048 bits 0.0540s 0.0016s 18.5 622.5
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#rsa 4096 bits 0.3700s 0.0058s 2.7 171.0
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#dsa 512 bits 0.0016s 0.0020s 610.7 507.1
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#dsa 1024 bits 0.0047s 0.0058s 212.5 173.2
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#
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# Again, performance increases by at about 75%
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#
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# Mac OS X, Apple G5 1.8GHz (Note this is 32 bit code)
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# OpenSSL 0.9.7c 30 Sep 2003
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#
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# Original code.
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#
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#rsa 512 bits 0.0011s 0.0001s 906.1 11012.5
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#rsa 1024 bits 0.0060s 0.0003s 166.6 3363.1
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#rsa 2048 bits 0.0370s 0.0010s 27.1 982.4
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#rsa 4096 bits 0.2426s 0.0036s 4.1 280.4
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#dsa 512 bits 0.0010s 0.0012s 1038.1 841.5
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#dsa 1024 bits 0.0030s 0.0037s 329.6 269.7
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#dsa 2048 bits 0.0101s 0.0127s 98.9 78.6
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#
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# Same benchmark with this assembler code:
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#
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#rsa 512 bits 0.0007s 0.0001s 1416.2 16645.9
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#rsa 1024 bits 0.0036s 0.0002s 274.4 5380.6
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#rsa 2048 bits 0.0222s 0.0006s 45.1 1589.5
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#rsa 4096 bits 0.1469s 0.0022s 6.8 449.6
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#dsa 512 bits 0.0006s 0.0007s 1664.2 1376.2
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#dsa 1024 bits 0.0018s 0.0023s 545.0 442.2
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#dsa 2048 bits 0.0061s 0.0075s 163.5 132.8
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#
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# Performance increase of ~60%
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#
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# If you have comments or suggestions to improve code send
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# me a note at schari@us.ibm.com
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#
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$flavour = shift;
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if ($flavour =~ /32/) {
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$BITS= 32;
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$BNSZ= $BITS/8;
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$ISA= "\"ppc\"";
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$LD= "lwz"; # load
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$LDU= "lwzu"; # load and update
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$ST= "stw"; # store
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$STU= "stwu"; # store and update
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$UMULL= "mullw"; # unsigned multiply low
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$UMULH= "mulhwu"; # unsigned multiply high
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$UDIV= "divwu"; # unsigned divide
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$UCMPI= "cmplwi"; # unsigned compare with immediate
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$UCMP= "cmplw"; # unsigned compare
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$CNTLZ= "cntlzw"; # count leading zeros
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$SHL= "slw"; # shift left
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$SHR= "srw"; # unsigned shift right
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$SHRI= "srwi"; # unsigned shift right by immediate
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$SHLI= "slwi"; # shift left by immediate
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$CLRU= "clrlwi"; # clear upper bits
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$INSR= "insrwi"; # insert right
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$ROTL= "rotlwi"; # rotate left by immediate
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$TR= "tw"; # conditional trap
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} elsif ($flavour =~ /64/) {
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$BITS= 64;
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$BNSZ= $BITS/8;
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$ISA= "\"ppc64\"";
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# same as above, but 64-bit mnemonics...
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$LD= "ld"; # load
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$LDU= "ldu"; # load and update
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$ST= "std"; # store
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$STU= "stdu"; # store and update
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$UMULL= "mulld"; # unsigned multiply low
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$UMULH= "mulhdu"; # unsigned multiply high
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$UDIV= "divdu"; # unsigned divide
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$UCMPI= "cmpldi"; # unsigned compare with immediate
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$UCMP= "cmpld"; # unsigned compare
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$CNTLZ= "cntlzd"; # count leading zeros
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$SHL= "sld"; # shift left
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$SHR= "srd"; # unsigned shift right
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$SHRI= "srdi"; # unsigned shift right by immediate
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$SHLI= "sldi"; # shift left by immediate
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$CLRU= "clrldi"; # clear upper bits
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$INSR= "insrdi"; # insert right
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$ROTL= "rotldi"; # rotate left by immediate
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$TR= "td"; # conditional trap
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} else { die "nonsense $flavour"; }
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
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die "can't locate ppc-xlate.pl";
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open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
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$data=<<EOF;
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#--------------------------------------------------------------------
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#
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#
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#
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#
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# File: ppc32.s
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#
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# Created by: Suresh Chari
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# IBM Thomas J. Watson Research Library
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# Hawthorne, NY
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#
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#
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# Description: Optimized assembly routines for OpenSSL crypto
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# on the 32 bitPowerPC platform.
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#
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#
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# Version History
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#
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# 2. Fixed bn_add,bn_sub and bn_div_words, added comments,
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# cleaned up code. Also made a single version which can
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# be used for both the AIX and Linux compilers. See NOTE
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# below.
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# 12/05/03 Suresh Chari
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# (with lots of help from) Andy Polyakov
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##
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# 1. Initial version 10/20/02 Suresh Chari
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#
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#
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# The following file works for the xlc,cc
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# and gcc compilers.
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#
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# NOTE: To get the file to link correctly with the gcc compiler
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# you have to change the names of the routines and remove
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# the first .(dot) character. This should automatically
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# be done in the build process.
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#
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# Hand optimized assembly code for the following routines
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#
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# bn_sqr_comba4
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# bn_sqr_comba8
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# bn_mul_comba4
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# bn_mul_comba8
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# bn_sub_words
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# bn_add_words
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# bn_div_words
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# bn_sqr_words
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# bn_mul_words
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# bn_mul_add_words
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#
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# NOTE: It is possible to optimize this code more for
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# specific PowerPC or Power architectures. On the Northstar
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# architecture the optimizations in this file do
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# NOT provide much improvement.
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#
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# If you have comments or suggestions to improve code send
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# me a note at schari\@us.ibm.com
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#
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#--------------------------------------------------------------------------
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#
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# Defines to be used in the assembly code.
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#
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#.set r0,0 # we use it as storage for value of 0
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#.set SP,1 # preserved
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#.set RTOC,2 # preserved
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#.set r3,3 # 1st argument/return value
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#.set r4,4 # 2nd argument/volatile register
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#.set r5,5 # 3rd argument/volatile register
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#.set r6,6 # ...
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#.set r7,7
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#.set r8,8
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#.set r9,9
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#.set r10,10
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#.set r11,11
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#.set r12,12
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#.set r13,13 # not used, nor any other "below" it...
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# Declare function names to be global
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# NOTE: For gcc these names MUST be changed to remove
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# the first . i.e. for example change ".bn_sqr_comba4"
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# to "bn_sqr_comba4". This should be automatically done
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# in the build.
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.globl .bn_sqr_comba4
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.globl .bn_sqr_comba8
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.globl .bn_mul_comba4
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.globl .bn_mul_comba8
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.globl .bn_sub_words
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.globl .bn_add_words
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.globl .bn_div_words
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.globl .bn_sqr_words
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.globl .bn_mul_words
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.globl .bn_mul_add_words
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# .text section
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.machine "any"
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#
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# NOTE: The following label name should be changed to
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# "bn_sqr_comba4" i.e. remove the first dot
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# for the gcc compiler. This should be automatically
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# done in the build
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#
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.align 4
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.bn_sqr_comba4:
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#
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# Optimized version of bn_sqr_comba4.
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#
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# void bn_sqr_comba4(BN_ULONG *r, BN_ULONG *a)
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# r3 contains r
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# r4 contains a
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#
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# Freely use registers r5,r6,r7,r8,r9,r10,r11 as follows:
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#
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# r5,r6 are the two BN_ULONGs being multiplied.
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# r7,r8 are the results of the 32x32 giving 64 bit multiply.
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# r9,r10, r11 are the equivalents of c1,c2, c3.
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# Here's the assembly
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#
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#
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xor r0,r0,r0 # set r0 = 0. Used in the addze
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# instructions below
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#sqr_add_c(a,0,c1,c2,c3)
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$LD r5,`0*$BNSZ`(r4)
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$UMULL r9,r5,r5
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$UMULH r10,r5,r5 #in first iteration. No need
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#to add since c1=c2=c3=0.
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# Note c3(r11) is NOT set to 0
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# but will be.
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$ST r9,`0*$BNSZ`(r3) # r[0]=c1;
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# sqr_add_c2(a,1,0,c2,c3,c1);
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$LD r6,`1*$BNSZ`(r4)
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$UMULL r7,r5,r6
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$UMULH r8,r5,r6
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addc r7,r7,r7 # compute (r7,r8)=2*(r7,r8)
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adde r8,r8,r8
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addze r9,r0 # catch carry if any.
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# r9= r0(=0) and carry
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addc r10,r7,r10 # now add to temp result.
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addze r11,r8 # r8 added to r11 which is 0
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addze r9,r9
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$ST r10,`1*$BNSZ`(r3) #r[1]=c2;
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#sqr_add_c(a,1,c3,c1,c2)
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$UMULL r7,r6,r6
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$UMULH r8,r6,r6
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addc r11,r7,r11
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adde r9,r8,r9
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addze r10,r0
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#sqr_add_c2(a,2,0,c3,c1,c2)
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$LD r6,`2*$BNSZ`(r4)
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$UMULL r7,r5,r6
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$UMULH r8,r5,r6
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addc r7,r7,r7
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adde r8,r8,r8
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addze r10,r10
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addc r11,r7,r11
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adde r9,r8,r9
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addze r10,r10
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$ST r11,`2*$BNSZ`(r3) #r[2]=c3
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#sqr_add_c2(a,3,0,c1,c2,c3);
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$LD r6,`3*$BNSZ`(r4)
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$UMULL r7,r5,r6
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$UMULH r8,r5,r6
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addc r7,r7,r7
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adde r8,r8,r8
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addze r11,r0
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addc r9,r7,r9
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adde r10,r8,r10
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addze r11,r11
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#sqr_add_c2(a,2,1,c1,c2,c3);
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$LD r5,`1*$BNSZ`(r4)
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$LD r6,`2*$BNSZ`(r4)
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$UMULL r7,r5,r6
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$UMULH r8,r5,r6
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addc r7,r7,r7
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adde r8,r8,r8
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addze r11,r11
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addc r9,r7,r9
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adde r10,r8,r10
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addze r11,r11
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$ST r9,`3*$BNSZ`(r3) #r[3]=c1
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#sqr_add_c(a,2,c2,c3,c1);
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$UMULL r7,r6,r6
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$UMULH r8,r6,r6
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addc r10,r7,r10
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adde r11,r8,r11
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addze r9,r0
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#sqr_add_c2(a,3,1,c2,c3,c1);
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$LD r6,`3*$BNSZ`(r4)
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$UMULL r7,r5,r6
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$UMULH r8,r5,r6
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addc r7,r7,r7
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adde r8,r8,r8
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addze r9,r9
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addc r10,r7,r10
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adde r11,r8,r11
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addze r9,r9
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$ST r10,`4*$BNSZ`(r3) #r[4]=c2
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#sqr_add_c2(a,3,2,c3,c1,c2);
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$LD r5,`2*$BNSZ`(r4)
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$UMULL r7,r5,r6
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$UMULH r8,r5,r6
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addc r7,r7,r7
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adde r8,r8,r8
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addze r10,r0
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addc r11,r7,r11
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adde r9,r8,r9
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addze r10,r10
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$ST r11,`5*$BNSZ`(r3) #r[5] = c3
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#sqr_add_c(a,3,c1,c2,c3);
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$UMULL r7,r6,r6
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$UMULH r8,r6,r6
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addc r9,r7,r9
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adde r10,r8,r10
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$ST r9,`6*$BNSZ`(r3) #r[6]=c1
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$ST r10,`7*$BNSZ`(r3) #r[7]=c2
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,2,0
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.long 0
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#
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# NOTE: The following label name should be changed to
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# "bn_sqr_comba8" i.e. remove the first dot
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# for the gcc compiler. This should be automatically
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# done in the build
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#
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.align 4
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.bn_sqr_comba8:
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#
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# This is an optimized version of the bn_sqr_comba8 routine.
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# Tightly uses the adde instruction
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#
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#
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# void bn_sqr_comba8(BN_ULONG *r, BN_ULONG *a)
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# r3 contains r
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# r4 contains a
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#
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# Freely use registers r5,r6,r7,r8,r9,r10,r11 as follows:
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#
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# r5,r6 are the two BN_ULONGs being multiplied.
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# r7,r8 are the results of the 32x32 giving 64 bit multiply.
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# r9,r10, r11 are the equivalents of c1,c2, c3.
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#
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# Possible optimization of loading all 8 longs of a into registers
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# doesnt provide any speedup
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#
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xor r0,r0,r0 #set r0 = 0.Used in addze
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#instructions below.
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#sqr_add_c(a,0,c1,c2,c3);
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$LD r5,`0*$BNSZ`(r4)
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$UMULL r9,r5,r5 #1st iteration: no carries.
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$UMULH r10,r5,r5
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$ST r9,`0*$BNSZ`(r3) # r[0]=c1;
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#sqr_add_c2(a,1,0,c2,c3,c1);
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$LD r6,`1*$BNSZ`(r4)
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$UMULL r7,r5,r6
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$UMULH r8,r5,r6
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addc r10,r7,r10 #add the two register number
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adde r11,r8,r0 # (r8,r7) to the three register
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addze r9,r0 # number (r9,r11,r10).NOTE:r0=0
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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;
|
|
|
|
|
|
blr
|
|
.long 0
|
|
.byte 0,12,0x14,0,0,0,2,0
|
|
.long 0
|
|
|
|
#
|
|
# 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`(r5)
|
|
$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
|
|
blr
|
|
.long 0
|
|
.byte 0,12,0x14,0,0,0,3,0
|
|
.long 0
|
|
|
|
#
|
|
# 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;
|
|
blr
|
|
.long 0
|
|
.byte 0,12,0x14,0,0,0,3,0
|
|
.long 0
|
|
|
|
#
|
|
# 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.
|
|
beq 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)
|
|
bdnz- 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.
|
|
blr
|
|
.long 0
|
|
.byte 0,12,0x14,0,0,0,4,0
|
|
.long 0
|
|
|
|
#
|
|
# 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.
|
|
beq 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)
|
|
bdnz- Lppcasm_add_mainloop
|
|
Lppcasm_add_adios:
|
|
addze r3,r0 #return carry bit.
|
|
blr
|
|
.long 0
|
|
.byte 0,12,0x14,0,0,0,4,0
|
|
.long 0
|
|
|
|
#
|
|
# 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
|
|
|
|
$UCMPI 0,r5,0 # compare r5 and 0
|
|
bne Lppcasm_div1 # proceed if d!=0
|
|
li r3,-1 # d=0 return -1
|
|
blr
|
|
Lppcasm_div1:
|
|
xor r0,r0,r0 #r0=0
|
|
li r8,$BITS
|
|
$CNTLZ. r7,r5 #r7 = num leading 0s in d.
|
|
beq 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?
|
|
blt 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)?
|
|
beq 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
|
|
bne 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 cr1,r6,r7 # compare (tl <= r7)
|
|
bne Lppcasm_divinnerexit
|
|
ble cr1,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 cr1,r4,r11 # compare l and tl
|
|
add r12,r12,r10 # th+=t
|
|
bge cr1,Lppcasm_div7 # if (l>=tl) goto Lppcasm_div7
|
|
addi r12,r12,1 # th++
|
|
Lppcasm_div7:
|
|
subf r11,r11,r4 #r11=l-tl
|
|
$UCMP cr1,r3,r12 #compare h and th
|
|
bge cr1,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
|
|
bdz Lppcasm_div9 #if (count==0) break ;
|
|
$SHLI r0,r8,`$BITS/2` #ret =q<<BN_BITS4
|
|
b Lppcasm_divouterloop
|
|
Lppcasm_div9:
|
|
or r3,r8,r0
|
|
blr
|
|
.long 0
|
|
.byte 0,12,0x14,0,0,0,3,0
|
|
.long 0
|
|
|
|
#
|
|
# 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.
|
|
beq 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)
|
|
bdnz- Lppcasm_sqr_mainloop
|
|
Lppcasm_sqr_adios:
|
|
blr
|
|
.long 0
|
|
.byte 0,12,0x14,0,0,0,3,0
|
|
.long 0
|
|
|
|
#
|
|
# 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
|
|
beq 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`
|
|
bdnz- Lppcasm_mw_LOOP
|
|
|
|
Lppcasm_mw_REM:
|
|
andi. r5,r5,0x3
|
|
beq 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
|
|
beq 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
|
|
beq 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
|
|
blr
|
|
.long 0
|
|
.byte 0,12,0x14,0,0,0,4,0
|
|
.long 0
|
|
|
|
#
|
|
# 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
|
|
beq 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`
|
|
bdnz- Lppcasm_maw_mainloop
|
|
|
|
Lppcasm_maw_leftover:
|
|
andi. r5,r5,0x3
|
|
beq 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)
|
|
|
|
bdz 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)
|
|
|
|
bdz 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
|
|
blr
|
|
.long 0
|
|
.byte 0,12,0x14,0,0,0,4,0
|
|
.long 0
|
|
.align 4
|
|
EOF
|
|
$data =~ s/\`([^\`]*)\`/eval $1/gem;
|
|
print $data;
|
|
close STDOUT;
|