+#!/usr/bin/env perl
+
+# ====================================================================
+# Written by Andy Polyakov <appro@fy.chalmers.se> 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/.
+# ====================================================================
+
+# SHA1 block procedure for PA-RISC.
+
+# June 2009.
+#
+# On PA-7100LC performance is >30% better than gcc 3.2 generated code
+# for aligned input and >50% better for unaligned. Compared to vendor
+# compiler on PA-8600 it's almost 60% faster in 64-bit build and just
+# few percent faster in 32-bit one (this for aligned input, data for
+# unaligned input is not available).
+#
+# 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";
+} else {
+ $LEVEL ="1.0";
+ $SIZE_T =4;
+ $FRAME_MARKER =48;
+ $SAVED_RP =20;
+ $PUSH ="stw";
+ $PUSHMA ="stwm";
+ $POP ="ldw";
+ $POPMB ="ldwm";
+}
+
+$FRAME=14*$SIZE_T+$FRAME_MARKER;# 14 saved regs + frame marker
+ # [+ argument transfer]
+$ctx="%r26"; # arg0
+$inp="%r25"; # arg1
+$num="%r24"; # arg2
+
+$t0="%r28";
+$t1="%r29";
+$K="%r31";
+
+@X=("%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7", "%r8",
+ "%r9", "%r10","%r11","%r12","%r13","%r14","%r15","%r16",$t0);
+
+@V=($A,$B,$C,$D,$E)=("%r19","%r20","%r21","%r22","%r23");
+
+sub BODY_00_19 {
+my ($i,$a,$b,$c,$d,$e)=@_;
+my $j=$i+1;
+$code.=<<___ if ($i<15);
+ addl $K,$e,$e ; $i
+ shd $a,$a,27,$t1
+ addl @X[$i],$e,$e
+ and $c,$b,$t0
+ addl $t1,$e,$e
+ andcm $d,$b,$t1
+ shd $b,$b,2,$b
+ or $t1,$t0,$t0
+ addl $t0,$e,$e
+___
+$code.=<<___ if ($i>=15); # with forward Xupdate
+ addl $K,$e,$e ; $i
+ shd $a,$a,27,$t1
+ xor @X[($j+2)%16],@X[$j%16],@X[$j%16]
+ addl @X[$i%16],$e,$e
+ and $c,$b,$t0
+ xor @X[($j+8)%16],@X[$j%16],@X[$j%16]
+ addl $t1,$e,$e
+ andcm $d,$b,$t1
+ shd $b,$b,2,$b
+ or $t1,$t0,$t0
+ xor @X[($j+13)%16],@X[$j%16],@X[$j%16]
+ add $t0,$e,$e
+ shd @X[$j%16],@X[$j%16],31,@X[$j%16]
+___
+}
+
+sub BODY_20_39 {
+my ($i,$a,$b,$c,$d,$e)=@_;
+my $j=$i+1;
+$code.=<<___ if ($i<79);
+ xor @X[($j+2)%16],@X[$j%16],@X[$j%16] ; $i
+ addl $K,$e,$e
+ shd $a,$a,27,$t1
+ xor @X[($j+8)%16],@X[$j%16],@X[$j%16]
+ addl @X[$i%16],$e,$e
+ xor $b,$c,$t0
+ xor @X[($j+13)%16],@X[$j%16],@X[$j%16]
+ addl $t1,$e,$e
+ shd $b,$b,2,$b
+ xor $d,$t0,$t0
+ shd @X[$j%16],@X[$j%16],31,@X[$j%16]
+ addl $t0,$e,$e
+___
+$code.=<<___ if ($i==79); # with context load
+ ldw 0($ctx),@X[0] ; $i
+ addl $K,$e,$e
+ shd $a,$a,27,$t1
+ ldw 4($ctx),@X[1]
+ addl @X[$i%16],$e,$e
+ xor $b,$c,$t0
+ ldw 8($ctx),@X[2]
+ addl $t1,$e,$e
+ shd $b,$b,2,$b
+ xor $d,$t0,$t0
+ ldw 12($ctx),@X[3]
+ addl $t0,$e,$e
+ ldw 16($ctx),@X[4]
+___
+}
+
+sub BODY_40_59 {
+my ($i,$a,$b,$c,$d,$e)=@_;
+my $j=$i+1;
+$code.=<<___;
+ shd $a,$a,27,$t1 ; $i
+ addl $K,$e,$e
+ xor @X[($j+2)%16],@X[$j%16],@X[$j%16]
+ xor $d,$c,$t0
+ addl @X[$i%16],$e,$e
+ xor @X[($j+8)%16],@X[$j%16],@X[$j%16]
+ and $b,$t0,$t0
+ addl $t1,$e,$e
+ shd $b,$b,2,$b
+ xor @X[($j+13)%16],@X[$j%16],@X[$j%16]
+ addl $t0,$e,$e
+ and $d,$c,$t1
+ shd @X[$j%16],@X[$j%16],31,@X[$j%16]
+ addl $t1,$e,$e
+___
+}
+
+$code=<<___;
+ .LEVEL $LEVEL
+ .SPACE \$TEXT\$
+ .SUBSPA \$CODE\$,QUAD=0,ALIGN=8,ACCESS=0x2C,CODE_ONLY
+
+ .EXPORT sha1_block_data_order,ENTRY,ARGW0=GR,ARGW1=GR,ARGW2=GR
+sha1_block_data_order
+ .PROC
+ .CALLINFO FRAME=`$FRAME-14*$SIZE_T`,NO_CALLS,SAVE_RP,ENTRY_GR=16
+ .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)
+ $PUSH %r7,`-$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)
+ $PUSH %r12,`-$FRAME+9*$SIZE_T`(%sp)
+ $PUSH %r13,`-$FRAME+10*$SIZE_T`(%sp)
+ $PUSH %r14,`-$FRAME+11*$SIZE_T`(%sp)
+ $PUSH %r15,`-$FRAME+12*$SIZE_T`(%sp)
+ $PUSH %r16,`-$FRAME+13*$SIZE_T`(%sp)
+
+ ldw 0($ctx),$A
+ ldw 4($ctx),$B
+ ldw 8($ctx),$C
+ ldw 12($ctx),$D
+ ldw 16($ctx),$E
+
+ extru $inp,31,2,$t0 ; t0=inp&3;
+ sh3addl $t0,%r0,$t0 ; t0*=8;
+ subi 32,$t0,$t0 ; t0=32-t0;
+ mtctl $t0,%cr11 ; %sar=t0;
+
+L\$oop
+ ldi 3,$t0
+ andcm $inp,$t0,$t0 ; 64-bit neutral
+___
+ for ($i=0;$i<15;$i++) { # load input block
+ $code.="\tldw `4*$i`($t0),@X[$i]\n"; }
+$code.=<<___;
+ cmpb,*= $inp,$t0,L\$aligned
+ ldw 60($t0),@X[15]
+ ldw 64($t0),@X[16]
+___
+ for ($i=0;$i<16;$i++) { # align input
+ $code.="\tvshd @X[$i],@X[$i+1],@X[$i]\n"; }
+$code.=<<___;
+L\$aligned
+ ldil L'0x5a827000,$K ; K_00_19
+ ldo 0x999($K),$K
+___
+for ($i=0;$i<20;$i++) { &BODY_00_19($i,@V); unshift(@V,pop(@V)); }
+$code.=<<___;
+ ldil L'0x6ed9e000,$K ; K_20_39
+ ldo 0xba1($K),$K
+___
+
+for (;$i<40;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
+$code.=<<___;
+ ldil L'0x8f1bb000,$K ; K_40_59
+ ldo 0xcdc($K),$K
+___
+
+for (;$i<60;$i++) { &BODY_40_59($i,@V); unshift(@V,pop(@V)); }
+$code.=<<___;
+ ldil L'0xca62c000,$K ; K_60_79
+ ldo 0x1d6($K),$K
+___
+for (;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
+
+$code.=<<___;
+ addl @X[0],$A,$A
+ addl @X[1],$B,$B
+ addl @X[2],$C,$C
+ addl @X[3],$D,$D
+ addl @X[4],$E,$E
+ stw $A,0($ctx)
+ stw $B,4($ctx)
+ stw $C,8($ctx)
+ stw $D,12($ctx)
+ stw $E,16($ctx)
+ addib,*<> -1,$num,L\$oop
+ ldo 64($inp),$inp
+
+ $POP `-$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
+ $POP `-$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
+ $POP `-$FRAME+9*$SIZE_T`(%sp),%r12
+ $POP `-$FRAME+10*$SIZE_T`(%sp),%r13
+ $POP `-$FRAME+11*$SIZE_T`(%sp),%r14
+ $POP `-$FRAME+12*$SIZE_T`(%sp),%r15
+ $POP `-$FRAME+13*$SIZE_T`(%sp),%r16
+ bv (%r2)
+ .EXIT
+ $POPMB -$FRAME(%sp),%r3
+ .PROCEND
+ .STRINGZ "SHA1 block transform for PA-RISC, CRYPTOGAMS by <appro\@openssl.org>"
+___
+
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
+$code =~ s/,\*/,/gm if ($SIZE_T==4);
+print $code;
+close STDOUT;
projects / openssl.git / commitdiff