--- /dev/null
+#!/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 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
+___
+\f
+$code.=<<___;
+ ldb 15($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)
+___
+\f
+$code.=<<___ if ($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
+___
+\f\f
+$code.=<<___;
+ ldb 15($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
+___
+\f
+$code.=<<___ if ($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;
projects / openssl / commitdiff