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| #! /usr/bin/env perl
| # Copyright 2010-2020 The OpenSSL Project Authors. All Rights Reserved.
| #
| # Licensed under the OpenSSL license (the "License"). You may not use
| # this file except in compliance with the License. You can obtain a copy
| # in the file LICENSE in the source distribution or at
| # https://www.openssl.org/source/license.html
|
| #
| # ====================================================================
| # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
| # project. The module is, however, dual licensed under OpenSSL and
| # CRYPTOGAMS licenses depending on where you obtain it. For further
| # details see http://www.openssl.org/~appro/cryptogams/.
| # ====================================================================
| #
| # April 2010
| #
| # The module implements "4-bit" GCM GHASH function and underlying
| # single multiplication operation in GF(2^128). "4-bit" means that it
| # uses 256 bytes per-key table [+128 bytes shared table]. On PA-7100LC
| # it processes one byte in 19.6 cycles, which is more than twice as
| # fast as code generated by gcc 3.2. PA-RISC 2.0 loop is scheduled for
| # 8 cycles, but measured performance on PA-8600 system is ~9 cycles per
| # processed byte. This is ~2.2x faster than 64-bit code generated by
| # vendor compiler (which used to be very hard to beat:-).
| #
| # Special thanks to polarhome.com for providing HP-UX account.
|
| $flavour = shift;
| $output = shift;
| open STDOUT,">$output";
|
| if ($flavour =~ /64/) {
| $LEVEL ="2.0W";
| $SIZE_T =8;
| $FRAME_MARKER =80;
| $SAVED_RP =16;
| $PUSH ="std";
| $PUSHMA ="std,ma";
| $POP ="ldd";
| $POPMB ="ldd,mb";
| $NREGS =6;
| } else {
| $LEVEL ="1.0"; #"\n\t.ALLOW\t2.0";
| $SIZE_T =4;
| $FRAME_MARKER =48;
| $SAVED_RP =20;
| $PUSH ="stw";
| $PUSHMA ="stwm";
| $POP ="ldw";
| $POPMB ="ldwm";
| $NREGS =11;
| }
|
| $FRAME=10*$SIZE_T+$FRAME_MARKER;# NREGS saved regs + frame marker
| # [+ argument transfer]
|
| ################# volatile registers
| $Xi="%r26"; # argument block
| $Htbl="%r25";
| $inp="%r24";
| $len="%r23";
| $Hhh=$Htbl; # variables
| $Hll="%r22";
| $Zhh="%r21";
| $Zll="%r20";
| $cnt="%r19";
| $rem_4bit="%r28";
| $rem="%r29";
| $mask0xf0="%r31";
|
| ################# preserved registers
| $Thh="%r1";
| $Tll="%r2";
| $nlo="%r3";
| $nhi="%r4";
| $byte="%r5";
| if ($SIZE_T==4) {
| $Zhl="%r6";
| $Zlh="%r7";
| $Hhl="%r8";
| $Hlh="%r9";
| $Thl="%r10";
| $Tlh="%r11";
| }
| $rem2="%r6"; # used in PA-RISC 2.0 code
|
| $code.=<<___;
| .LEVEL $LEVEL
| .SPACE \$TEXT\$
| .SUBSPA \$CODE\$,QUAD=0,ALIGN=8,ACCESS=0x2C,CODE_ONLY
|
| .EXPORT gcm_gmult_4bit,ENTRY,ARGW0=GR,ARGW1=GR
| .ALIGN 64
| gcm_gmult_4bit
| .PROC
| .CALLINFO FRAME=`$FRAME-10*$SIZE_T`,NO_CALLS,SAVE_RP,ENTRY_GR=$NREGS
| .ENTRY
| $PUSH %r2,-$SAVED_RP(%sp) ; standard prologue
| $PUSHMA %r3,$FRAME(%sp)
| $PUSH %r4,`-$FRAME+1*$SIZE_T`(%sp)
| $PUSH %r5,`-$FRAME+2*$SIZE_T`(%sp)
| $PUSH %r6,`-$FRAME+3*$SIZE_T`(%sp)
| ___
| $code.=<<___ if ($SIZE_T==4);
| $PUSH %r7,`-$FRAME+4*$SIZE_T`(%sp)
| $PUSH %r8,`-$FRAME+5*$SIZE_T`(%sp)
| $PUSH %r9,`-$FRAME+6*$SIZE_T`(%sp)
| $PUSH %r10,`-$FRAME+7*$SIZE_T`(%sp)
| $PUSH %r11,`-$FRAME+8*$SIZE_T`(%sp)
| ___
| $code.=<<___;
| blr %r0,$rem_4bit
| ldi 3,$rem
| L\$pic_gmult
| andcm $rem_4bit,$rem,$rem_4bit
| addl $inp,$len,$len
| ldo L\$rem_4bit-L\$pic_gmult($rem_4bit),$rem_4bit
| ldi 0xf0,$mask0xf0
| ___
| $code.=<<___ if ($SIZE_T==4);
| ldi 31,$rem
| mtctl $rem,%cr11
| extrd,u,*= $rem,%sar,1,$rem ; executes on PA-RISC 1.0
| b L\$parisc1_gmult
| nop
| ___
|
| $code.=<<___;
| ldb 15($Xi),$nlo
| ldo 8($Htbl),$Hll
|
| and $mask0xf0,$nlo,$nhi
| depd,z $nlo,59,4,$nlo
|
| ldd $nlo($Hll),$Zll
| ldd $nlo($Hhh),$Zhh
|
| depd,z $Zll,60,4,$rem
| shrpd $Zhh,$Zll,4,$Zll
| extrd,u $Zhh,59,60,$Zhh
| ldb 14($Xi),$nlo
|
| ldd $nhi($Hll),$Tll
| ldd $nhi($Hhh),$Thh
| and $mask0xf0,$nlo,$nhi
| depd,z $nlo,59,4,$nlo
|
| xor $Tll,$Zll,$Zll
| xor $Thh,$Zhh,$Zhh
| ldd $rem($rem_4bit),$rem
| b L\$oop_gmult_pa2
| ldi 13,$cnt
|
| .ALIGN 8
| L\$oop_gmult_pa2
| xor $rem,$Zhh,$Zhh ; moved here to work around gas bug
| depd,z $Zll,60,4,$rem
|
| shrpd $Zhh,$Zll,4,$Zll
| extrd,u $Zhh,59,60,$Zhh
| ldd $nlo($Hll),$Tll
| ldd $nlo($Hhh),$Thh
|
| xor $Tll,$Zll,$Zll
| xor $Thh,$Zhh,$Zhh
| ldd $rem($rem_4bit),$rem
|
| xor $rem,$Zhh,$Zhh
| depd,z $Zll,60,4,$rem
| ldbx $cnt($Xi),$nlo
|
| shrpd $Zhh,$Zll,4,$Zll
| extrd,u $Zhh,59,60,$Zhh
| ldd $nhi($Hll),$Tll
| ldd $nhi($Hhh),$Thh
|
| and $mask0xf0,$nlo,$nhi
| depd,z $nlo,59,4,$nlo
| ldd $rem($rem_4bit),$rem
|
| xor $Tll,$Zll,$Zll
| addib,uv -1,$cnt,L\$oop_gmult_pa2
| xor $Thh,$Zhh,$Zhh
|
| xor $rem,$Zhh,$Zhh
| depd,z $Zll,60,4,$rem
|
| shrpd $Zhh,$Zll,4,$Zll
| extrd,u $Zhh,59,60,$Zhh
| ldd $nlo($Hll),$Tll
| ldd $nlo($Hhh),$Thh
|
| xor $Tll,$Zll,$Zll
| xor $Thh,$Zhh,$Zhh
| ldd $rem($rem_4bit),$rem
|
| xor $rem,$Zhh,$Zhh
| depd,z $Zll,60,4,$rem
|
| shrpd $Zhh,$Zll,4,$Zll
| extrd,u $Zhh,59,60,$Zhh
| ldd $nhi($Hll),$Tll
| ldd $nhi($Hhh),$Thh
|
| xor $Tll,$Zll,$Zll
| xor $Thh,$Zhh,$Zhh
| ldd $rem($rem_4bit),$rem
|
| xor $rem,$Zhh,$Zhh
| std $Zll,8($Xi)
| std $Zhh,0($Xi)
| ___
|
| $code.=<<___ if ($SIZE_T==4);
| b L\$done_gmult
| nop
|
| L\$parisc1_gmult
| ldb 15($Xi),$nlo
| ldo 12($Htbl),$Hll
| ldo 8($Htbl),$Hlh
| ldo 4($Htbl),$Hhl
|
| and $mask0xf0,$nlo,$nhi
| zdep $nlo,27,4,$nlo
|
| ldwx $nlo($Hll),$Zll
| ldwx $nlo($Hlh),$Zlh
| ldwx $nlo($Hhl),$Zhl
| ldwx $nlo($Hhh),$Zhh
| zdep $Zll,28,4,$rem
| ldb 14($Xi),$nlo
| ldwx $rem($rem_4bit),$rem
| shrpw $Zlh,$Zll,4,$Zll
| ldwx $nhi($Hll),$Tll
| shrpw $Zhl,$Zlh,4,$Zlh
| ldwx $nhi($Hlh),$Tlh
| shrpw $Zhh,$Zhl,4,$Zhl
| ldwx $nhi($Hhl),$Thl
| extru $Zhh,27,28,$Zhh
| ldwx $nhi($Hhh),$Thh
| xor $rem,$Zhh,$Zhh
| and $mask0xf0,$nlo,$nhi
| zdep $nlo,27,4,$nlo
|
| xor $Tll,$Zll,$Zll
| ldwx $nlo($Hll),$Tll
| xor $Tlh,$Zlh,$Zlh
| ldwx $nlo($Hlh),$Tlh
| xor $Thl,$Zhl,$Zhl
| b L\$oop_gmult_pa1
| ldi 13,$cnt
|
| .ALIGN 8
| L\$oop_gmult_pa1
| zdep $Zll,28,4,$rem
| ldwx $nlo($Hhl),$Thl
| xor $Thh,$Zhh,$Zhh
| ldwx $rem($rem_4bit),$rem
| shrpw $Zlh,$Zll,4,$Zll
| ldwx $nlo($Hhh),$Thh
| shrpw $Zhl,$Zlh,4,$Zlh
| ldbx $cnt($Xi),$nlo
| xor $Tll,$Zll,$Zll
| ldwx $nhi($Hll),$Tll
| shrpw $Zhh,$Zhl,4,$Zhl
| xor $Tlh,$Zlh,$Zlh
| ldwx $nhi($Hlh),$Tlh
| extru $Zhh,27,28,$Zhh
| xor $Thl,$Zhl,$Zhl
| ldwx $nhi($Hhl),$Thl
| xor $rem,$Zhh,$Zhh
| zdep $Zll,28,4,$rem
| xor $Thh,$Zhh,$Zhh
| ldwx $nhi($Hhh),$Thh
| shrpw $Zlh,$Zll,4,$Zll
| ldwx $rem($rem_4bit),$rem
| shrpw $Zhl,$Zlh,4,$Zlh
| shrpw $Zhh,$Zhl,4,$Zhl
| and $mask0xf0,$nlo,$nhi
| extru $Zhh,27,28,$Zhh
| zdep $nlo,27,4,$nlo
| xor $Tll,$Zll,$Zll
| ldwx $nlo($Hll),$Tll
| xor $Tlh,$Zlh,$Zlh
| ldwx $nlo($Hlh),$Tlh
| xor $rem,$Zhh,$Zhh
| addib,uv -1,$cnt,L\$oop_gmult_pa1
| xor $Thl,$Zhl,$Zhl
|
| zdep $Zll,28,4,$rem
| ldwx $nlo($Hhl),$Thl
| xor $Thh,$Zhh,$Zhh
| ldwx $rem($rem_4bit),$rem
| shrpw $Zlh,$Zll,4,$Zll
| ldwx $nlo($Hhh),$Thh
| shrpw $Zhl,$Zlh,4,$Zlh
| xor $Tll,$Zll,$Zll
| ldwx $nhi($Hll),$Tll
| shrpw $Zhh,$Zhl,4,$Zhl
| xor $Tlh,$Zlh,$Zlh
| ldwx $nhi($Hlh),$Tlh
| extru $Zhh,27,28,$Zhh
| xor $rem,$Zhh,$Zhh
| xor $Thl,$Zhl,$Zhl
| ldwx $nhi($Hhl),$Thl
| xor $Thh,$Zhh,$Zhh
| ldwx $nhi($Hhh),$Thh
| zdep $Zll,28,4,$rem
| ldwx $rem($rem_4bit),$rem
| shrpw $Zlh,$Zll,4,$Zll
| shrpw $Zhl,$Zlh,4,$Zlh
| shrpw $Zhh,$Zhl,4,$Zhl
| extru $Zhh,27,28,$Zhh
| xor $Tll,$Zll,$Zll
| xor $Tlh,$Zlh,$Zlh
| xor $rem,$Zhh,$Zhh
| stw $Zll,12($Xi)
| xor $Thl,$Zhl,$Zhl
| stw $Zlh,8($Xi)
| xor $Thh,$Zhh,$Zhh
| stw $Zhl,4($Xi)
| stw $Zhh,0($Xi)
| ___
| $code.=<<___;
| L\$done_gmult
| $POP `-$FRAME-$SAVED_RP`(%sp),%r2 ; standard epilogue
| $POP `-$FRAME+1*$SIZE_T`(%sp),%r4
| $POP `-$FRAME+2*$SIZE_T`(%sp),%r5
| $POP `-$FRAME+3*$SIZE_T`(%sp),%r6
| ___
| $code.=<<___ if ($SIZE_T==4);
| $POP `-$FRAME+4*$SIZE_T`(%sp),%r7
| $POP `-$FRAME+5*$SIZE_T`(%sp),%r8
| $POP `-$FRAME+6*$SIZE_T`(%sp),%r9
| $POP `-$FRAME+7*$SIZE_T`(%sp),%r10
| $POP `-$FRAME+8*$SIZE_T`(%sp),%r11
| ___
| $code.=<<___;
| bv (%r2)
| .EXIT
| $POPMB -$FRAME(%sp),%r3
| .PROCEND
|
| .EXPORT gcm_ghash_4bit,ENTRY,ARGW0=GR,ARGW1=GR,ARGW2=GR,ARGW3=GR
| .ALIGN 64
| gcm_ghash_4bit
| .PROC
| .CALLINFO FRAME=`$FRAME-10*$SIZE_T`,NO_CALLS,SAVE_RP,ENTRY_GR=11
| .ENTRY
| $PUSH %r2,-$SAVED_RP(%sp) ; standard prologue
| $PUSHMA %r3,$FRAME(%sp)
| $PUSH %r4,`-$FRAME+1*$SIZE_T`(%sp)
| $PUSH %r5,`-$FRAME+2*$SIZE_T`(%sp)
| $PUSH %r6,`-$FRAME+3*$SIZE_T`(%sp)
| ___
| $code.=<<___ if ($SIZE_T==4);
| $PUSH %r7,`-$FRAME+4*$SIZE_T`(%sp)
| $PUSH %r8,`-$FRAME+5*$SIZE_T`(%sp)
| $PUSH %r9,`-$FRAME+6*$SIZE_T`(%sp)
| $PUSH %r10,`-$FRAME+7*$SIZE_T`(%sp)
| $PUSH %r11,`-$FRAME+8*$SIZE_T`(%sp)
| ___
| $code.=<<___;
| blr %r0,$rem_4bit
| ldi 3,$rem
| L\$pic_ghash
| andcm $rem_4bit,$rem,$rem_4bit
| addl $inp,$len,$len
| ldo L\$rem_4bit-L\$pic_ghash($rem_4bit),$rem_4bit
| ldi 0xf0,$mask0xf0
| ___
| $code.=<<___ if ($SIZE_T==4);
| ldi 31,$rem
| mtctl $rem,%cr11
| extrd,u,*= $rem,%sar,1,$rem ; executes on PA-RISC 1.0
| b L\$parisc1_ghash
| nop
| ___
|
| $code.=<<___;
| ldb 15($Xi),$nlo
| ldo 8($Htbl),$Hll
|
| L\$outer_ghash_pa2
| ldb 15($inp),$nhi
| xor $nhi,$nlo,$nlo
| and $mask0xf0,$nlo,$nhi
| depd,z $nlo,59,4,$nlo
|
| ldd $nlo($Hll),$Zll
| ldd $nlo($Hhh),$Zhh
|
| depd,z $Zll,60,4,$rem
| shrpd $Zhh,$Zll,4,$Zll
| extrd,u $Zhh,59,60,$Zhh
| ldb 14($Xi),$nlo
| ldb 14($inp),$byte
|
| ldd $nhi($Hll),$Tll
| ldd $nhi($Hhh),$Thh
| xor $byte,$nlo,$nlo
| and $mask0xf0,$nlo,$nhi
| depd,z $nlo,59,4,$nlo
|
| xor $Tll,$Zll,$Zll
| xor $Thh,$Zhh,$Zhh
| ldd $rem($rem_4bit),$rem
| b L\$oop_ghash_pa2
| ldi 13,$cnt
|
| .ALIGN 8
| L\$oop_ghash_pa2
| xor $rem,$Zhh,$Zhh ; moved here to work around gas bug
| depd,z $Zll,60,4,$rem2
|
| shrpd $Zhh,$Zll,4,$Zll
| extrd,u $Zhh,59,60,$Zhh
| ldd $nlo($Hll),$Tll
| ldd $nlo($Hhh),$Thh
|
| xor $Tll,$Zll,$Zll
| xor $Thh,$Zhh,$Zhh
| ldbx $cnt($Xi),$nlo
| ldbx $cnt($inp),$byte
|
| depd,z $Zll,60,4,$rem
| shrpd $Zhh,$Zll,4,$Zll
| ldd $rem2($rem_4bit),$rem2
|
| xor $rem2,$Zhh,$Zhh
| xor $byte,$nlo,$nlo
| ldd $nhi($Hll),$Tll
| ldd $nhi($Hhh),$Thh
|
| and $mask0xf0,$nlo,$nhi
| depd,z $nlo,59,4,$nlo
|
| extrd,u $Zhh,59,60,$Zhh
| xor $Tll,$Zll,$Zll
|
| ldd $rem($rem_4bit),$rem
| addib,uv -1,$cnt,L\$oop_ghash_pa2
| xor $Thh,$Zhh,$Zhh
|
| xor $rem,$Zhh,$Zhh
| depd,z $Zll,60,4,$rem2
|
| shrpd $Zhh,$Zll,4,$Zll
| extrd,u $Zhh,59,60,$Zhh
| ldd $nlo($Hll),$Tll
| ldd $nlo($Hhh),$Thh
|
| xor $Tll,$Zll,$Zll
| xor $Thh,$Zhh,$Zhh
|
| depd,z $Zll,60,4,$rem
| shrpd $Zhh,$Zll,4,$Zll
| ldd $rem2($rem_4bit),$rem2
|
| xor $rem2,$Zhh,$Zhh
| ldd $nhi($Hll),$Tll
| ldd $nhi($Hhh),$Thh
|
| extrd,u $Zhh,59,60,$Zhh
| xor $Tll,$Zll,$Zll
| xor $Thh,$Zhh,$Zhh
| ldd $rem($rem_4bit),$rem
|
| xor $rem,$Zhh,$Zhh
| std $Zll,8($Xi)
| ldo 16($inp),$inp
| std $Zhh,0($Xi)
| cmpb,*<> $inp,$len,L\$outer_ghash_pa2
| copy $Zll,$nlo
| ___
|
| $code.=<<___ if ($SIZE_T==4);
| b L\$done_ghash
| nop
|
| L\$parisc1_ghash
| ldb 15($Xi),$nlo
| ldo 12($Htbl),$Hll
| ldo 8($Htbl),$Hlh
| ldo 4($Htbl),$Hhl
|
| L\$outer_ghash_pa1
| ldb 15($inp),$byte
| xor $byte,$nlo,$nlo
| and $mask0xf0,$nlo,$nhi
| zdep $nlo,27,4,$nlo
|
| ldwx $nlo($Hll),$Zll
| ldwx $nlo($Hlh),$Zlh
| ldwx $nlo($Hhl),$Zhl
| ldwx $nlo($Hhh),$Zhh
| zdep $Zll,28,4,$rem
| ldb 14($Xi),$nlo
| ldb 14($inp),$byte
| ldwx $rem($rem_4bit),$rem
| shrpw $Zlh,$Zll,4,$Zll
| ldwx $nhi($Hll),$Tll
| shrpw $Zhl,$Zlh,4,$Zlh
| ldwx $nhi($Hlh),$Tlh
| shrpw $Zhh,$Zhl,4,$Zhl
| ldwx $nhi($Hhl),$Thl
| extru $Zhh,27,28,$Zhh
| ldwx $nhi($Hhh),$Thh
| xor $byte,$nlo,$nlo
| xor $rem,$Zhh,$Zhh
| and $mask0xf0,$nlo,$nhi
| zdep $nlo,27,4,$nlo
|
| xor $Tll,$Zll,$Zll
| ldwx $nlo($Hll),$Tll
| xor $Tlh,$Zlh,$Zlh
| ldwx $nlo($Hlh),$Tlh
| xor $Thl,$Zhl,$Zhl
| b L\$oop_ghash_pa1
| ldi 13,$cnt
|
| .ALIGN 8
| L\$oop_ghash_pa1
| zdep $Zll,28,4,$rem
| ldwx $nlo($Hhl),$Thl
| xor $Thh,$Zhh,$Zhh
| ldwx $rem($rem_4bit),$rem
| shrpw $Zlh,$Zll,4,$Zll
| ldwx $nlo($Hhh),$Thh
| shrpw $Zhl,$Zlh,4,$Zlh
| ldbx $cnt($Xi),$nlo
| xor $Tll,$Zll,$Zll
| ldwx $nhi($Hll),$Tll
| shrpw $Zhh,$Zhl,4,$Zhl
| ldbx $cnt($inp),$byte
| xor $Tlh,$Zlh,$Zlh
| ldwx $nhi($Hlh),$Tlh
| extru $Zhh,27,28,$Zhh
| xor $Thl,$Zhl,$Zhl
| ldwx $nhi($Hhl),$Thl
| xor $rem,$Zhh,$Zhh
| zdep $Zll,28,4,$rem
| xor $Thh,$Zhh,$Zhh
| ldwx $nhi($Hhh),$Thh
| shrpw $Zlh,$Zll,4,$Zll
| ldwx $rem($rem_4bit),$rem
| shrpw $Zhl,$Zlh,4,$Zlh
| xor $byte,$nlo,$nlo
| shrpw $Zhh,$Zhl,4,$Zhl
| and $mask0xf0,$nlo,$nhi
| extru $Zhh,27,28,$Zhh
| zdep $nlo,27,4,$nlo
| xor $Tll,$Zll,$Zll
| ldwx $nlo($Hll),$Tll
| xor $Tlh,$Zlh,$Zlh
| ldwx $nlo($Hlh),$Tlh
| xor $rem,$Zhh,$Zhh
| addib,uv -1,$cnt,L\$oop_ghash_pa1
| xor $Thl,$Zhl,$Zhl
|
| zdep $Zll,28,4,$rem
| ldwx $nlo($Hhl),$Thl
| xor $Thh,$Zhh,$Zhh
| ldwx $rem($rem_4bit),$rem
| shrpw $Zlh,$Zll,4,$Zll
| ldwx $nlo($Hhh),$Thh
| shrpw $Zhl,$Zlh,4,$Zlh
| xor $Tll,$Zll,$Zll
| ldwx $nhi($Hll),$Tll
| shrpw $Zhh,$Zhl,4,$Zhl
| xor $Tlh,$Zlh,$Zlh
| ldwx $nhi($Hlh),$Tlh
| extru $Zhh,27,28,$Zhh
| xor $rem,$Zhh,$Zhh
| xor $Thl,$Zhl,$Zhl
| ldwx $nhi($Hhl),$Thl
| xor $Thh,$Zhh,$Zhh
| ldwx $nhi($Hhh),$Thh
| zdep $Zll,28,4,$rem
| ldwx $rem($rem_4bit),$rem
| shrpw $Zlh,$Zll,4,$Zll
| shrpw $Zhl,$Zlh,4,$Zlh
| shrpw $Zhh,$Zhl,4,$Zhl
| extru $Zhh,27,28,$Zhh
| xor $Tll,$Zll,$Zll
| xor $Tlh,$Zlh,$Zlh
| xor $rem,$Zhh,$Zhh
| stw $Zll,12($Xi)
| xor $Thl,$Zhl,$Zhl
| stw $Zlh,8($Xi)
| xor $Thh,$Zhh,$Zhh
| stw $Zhl,4($Xi)
| ldo 16($inp),$inp
| stw $Zhh,0($Xi)
| comb,<> $inp,$len,L\$outer_ghash_pa1
| copy $Zll,$nlo
| ___
| $code.=<<___;
| L\$done_ghash
| $POP `-$FRAME-$SAVED_RP`(%sp),%r2 ; standard epilogue
| $POP `-$FRAME+1*$SIZE_T`(%sp),%r4
| $POP `-$FRAME+2*$SIZE_T`(%sp),%r5
| $POP `-$FRAME+3*$SIZE_T`(%sp),%r6
| ___
| $code.=<<___ if ($SIZE_T==4);
| $POP `-$FRAME+4*$SIZE_T`(%sp),%r7
| $POP `-$FRAME+5*$SIZE_T`(%sp),%r8
| $POP `-$FRAME+6*$SIZE_T`(%sp),%r9
| $POP `-$FRAME+7*$SIZE_T`(%sp),%r10
| $POP `-$FRAME+8*$SIZE_T`(%sp),%r11
| ___
| $code.=<<___;
| bv (%r2)
| .EXIT
| $POPMB -$FRAME(%sp),%r3
| .PROCEND
|
| .ALIGN 64
| L\$rem_4bit
| .WORD `0x0000<<16`,0,`0x1C20<<16`,0,`0x3840<<16`,0,`0x2460<<16`,0
| .WORD `0x7080<<16`,0,`0x6CA0<<16`,0,`0x48C0<<16`,0,`0x54E0<<16`,0
| .WORD `0xE100<<16`,0,`0xFD20<<16`,0,`0xD940<<16`,0,`0xC560<<16`,0
| .WORD `0x9180<<16`,0,`0x8DA0<<16`,0,`0xA9C0<<16`,0,`0xB5E0<<16`,0
| .STRINGZ "GHASH for PA-RISC, GRYPTOGAMS by <appro\@openssl.org>"
| .ALIGN 64
| ___
|
| # Explicitly encode PA-RISC 2.0 instructions used in this module, so
| # that it can be compiled with .LEVEL 1.0. It should be noted that I
| # wouldn't have to do this, if GNU assembler understood .ALLOW 2.0
| # directive...
|
| my $ldd = sub {
| my ($mod,$args) = @_;
| my $orig = "ldd$mod\t$args";
|
| if ($args =~ /%r([0-9]+)\(%r([0-9]+)\),%r([0-9]+)/) # format 4
| { my $opcode=(0x03<<26)|($2<<21)|($1<<16)|(3<<6)|$3;
| sprintf "\t.WORD\t0x%08x\t; %s",$opcode,$orig;
| }
| elsif ($args =~ /(\-?[0-9]+)\(%r([0-9]+)\),%r([0-9]+)/) # format 5
| { my $opcode=(0x03<<26)|($2<<21)|(1<<12)|(3<<6)|$3;
| $opcode|=(($1&0xF)<<17)|(($1&0x10)<<12); # encode offset
| $opcode|=(1<<5) if ($mod =~ /^,m/);
| $opcode|=(1<<13) if ($mod =~ /^,mb/);
| sprintf "\t.WORD\t0x%08x\t; %s",$opcode,$orig;
| }
| else { "\t".$orig; }
| };
|
| my $std = sub {
| my ($mod,$args) = @_;
| my $orig = "std$mod\t$args";
|
| if ($args =~ /%r([0-9]+),(\-?[0-9]+)\(%r([0-9]+)\)/) # format 3 suffices
| { my $opcode=(0x1c<<26)|($3<<21)|($1<<16)|(($2&0x1FF8)<<1)|(($2>>13)&1);
| sprintf "\t.WORD\t0x%08x\t; %s",$opcode,$orig;
| }
| else { "\t".$orig; }
| };
|
| my $extrd = sub {
| my ($mod,$args) = @_;
| my $orig = "extrd$mod\t$args";
|
| # I only have ",u" completer, it's implicitly encoded...
| if ($args =~ /%r([0-9]+),([0-9]+),([0-9]+),%r([0-9]+)/) # format 15
| { my $opcode=(0x36<<26)|($1<<21)|($4<<16);
| my $len=32-$3;
| $opcode |= (($2&0x20)<<6)|(($2&0x1f)<<5); # encode pos
| $opcode |= (($len&0x20)<<7)|($len&0x1f); # encode len
| sprintf "\t.WORD\t0x%08x\t; %s",$opcode,$orig;
| }
| elsif ($args =~ /%r([0-9]+),%sar,([0-9]+),%r([0-9]+)/) # format 12
| { my $opcode=(0x34<<26)|($1<<21)|($3<<16)|(2<<11)|(1<<9);
| my $len=32-$2;
| $opcode |= (($len&0x20)<<3)|($len&0x1f); # encode len
| $opcode |= (1<<13) if ($mod =~ /,\**=/);
| sprintf "\t.WORD\t0x%08x\t; %s",$opcode,$orig;
| }
| else { "\t".$orig; }
| };
|
| my $shrpd = sub {
| my ($mod,$args) = @_;
| my $orig = "shrpd$mod\t$args";
|
| if ($args =~ /%r([0-9]+),%r([0-9]+),([0-9]+),%r([0-9]+)/) # format 14
| { my $opcode=(0x34<<26)|($2<<21)|($1<<16)|(1<<10)|$4;
| my $cpos=63-$3;
| $opcode |= (($cpos&0x20)<<6)|(($cpos&0x1f)<<5); # encode sa
| sprintf "\t.WORD\t0x%08x\t; %s",$opcode,$orig;
| }
| elsif ($args =~ /%r([0-9]+),%r([0-9]+),%sar,%r([0-9]+)/) # format 11
| { sprintf "\t.WORD\t0x%08x\t; %s",
| (0x34<<26)|($2<<21)|($1<<16)|(1<<9)|$3,$orig;
| }
| else { "\t".$orig; }
| };
|
| my $depd = sub {
| my ($mod,$args) = @_;
| my $orig = "depd$mod\t$args";
|
| # I only have ",z" completer, it's implicitly encoded...
| if ($args =~ /%r([0-9]+),([0-9]+),([0-9]+),%r([0-9]+)/) # format 16
| { my $opcode=(0x3c<<26)|($4<<21)|($1<<16);
| my $cpos=63-$2;
| my $len=32-$3;
| $opcode |= (($cpos&0x20)<<6)|(($cpos&0x1f)<<5); # encode pos
| $opcode |= (($len&0x20)<<7)|($len&0x1f); # encode len
| sprintf "\t.WORD\t0x%08x\t; %s",$opcode,$orig;
| }
| else { "\t".$orig; }
| };
|
| sub assemble {
| my ($mnemonic,$mod,$args)=@_;
| my $opcode = eval("\$$mnemonic");
|
| ref($opcode) eq 'CODE' ? &$opcode($mod,$args) : "\t$mnemonic$mod\t$args";
| }
|
| if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
| =~ /GNU assembler/) {
| $gnuas = 1;
| }
|
| foreach (split("\n",$code)) {
| s/\`([^\`]*)\`/eval $1/ge;
| if ($SIZE_T==4) {
| s/^\s+([a-z]+)([\S]*)\s+([\S]*)/&assemble($1,$2,$3)/e;
| s/cmpb,\*/comb,/;
| s/,\*/,/;
| }
|
| s/(\.LEVEL\s+2\.0)W/$1w/ if ($gnuas && $SIZE_T==8);
| s/\.SPACE\s+\$TEXT\$/.text/ if ($gnuas && $SIZE_T==8);
| s/\.SUBSPA.*// if ($gnuas && $SIZE_T==8);
| s/\bbv\b/bve/ if ($SIZE_T==8);
|
| print $_,"\n";
| }
|
| close STDOUT or die "error closing STDOUT: $!";
|
|
