diff options
Diffstat (limited to 'openssl/crypto/modes/asm/ghash-parisc.pl')
| -rw-r--r-- | openssl/crypto/modes/asm/ghash-parisc.pl | 730 |
1 files changed, 730 insertions, 0 deletions
diff --git a/openssl/crypto/modes/asm/ghash-parisc.pl b/openssl/crypto/modes/asm/ghash-parisc.pl new file mode 100644 index 000000000..8c7454ee9 --- /dev/null +++ b/openssl/crypto/modes/asm/ghash-parisc.pl @@ -0,0 +1,730 @@ +#!/usr/bin/env perl +# +# ==================================================================== +# 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$args"; + + # I only have ",z" completer, it's impicitly encoded... + if ($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$args"; +} + +foreach (split("\n",$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/,\*/,/; + } + print $_,"\n"; +} + +close STDOUT; |