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| #! /usr/bin/env perl
| # Copyright 2006-2020 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/.
| # ====================================================================
|
| # I let hardware handle unaligned input, except on page boundaries
| # (see below for details). Otherwise straightforward implementation
| # with X vector in register bank.
|
| # sha256 | sha512
| # -m64 -m32 | -m64 -m32
| # --------------------------------------+-----------------------
| # PPC970,gcc-4.0.0 +50% +38% | +40% +410%(*)
| # Power6,xlc-7 +150% +90% | +100% +430%(*)
| #
| # (*) 64-bit code in 32-bit application context, which actually is
| # on TODO list. It should be noted that for safe deployment in
| # 32-bit *multi-threaded* context asynchronous signals should be
| # blocked upon entry to SHA512 block routine. This is because
| # 32-bit signaling procedure invalidates upper halves of GPRs.
| # Context switch procedure preserves them, but not signaling:-(
|
| # Second version is true multi-thread safe. Trouble with the original
| # version was that it was using thread local storage pointer register.
| # Well, it scrupulously preserved it, but the problem would arise the
| # moment asynchronous signal was delivered and signal handler would
| # dereference the TLS pointer. While it's never the case in openssl
| # application or test suite, we have to respect this scenario and not
| # use TLS pointer register. Alternative would be to require caller to
| # block signals prior calling this routine. For the record, in 32-bit
| # context R2 serves as TLS pointer, while in 64-bit context - R13.
|
| $flavour=shift;
| $output =shift;
|
| if ($flavour =~ /64/) {
| $SIZE_T=8;
| $LRSAVE=2*$SIZE_T;
| $STU="stdu";
| $UCMP="cmpld";
| $SHL="sldi";
| $POP="ld";
| $PUSH="std";
| } elsif ($flavour =~ /32/) {
| $SIZE_T=4;
| $LRSAVE=$SIZE_T;
| $STU="stwu";
| $UCMP="cmplw";
| $SHL="slwi";
| $POP="lwz";
| $PUSH="stw";
| } else { die "nonsense $flavour"; }
|
| $LITTLE_ENDIAN = ($flavour=~/le$/) ? $SIZE_T : 0;
|
| $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
| ( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
| ( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
| die "can't locate ppc-xlate.pl";
|
| open STDOUT,"| $^X $xlate $flavour $output" || die "can't call $xlate: $!";
|
| if ($output =~ /512/) {
| $func="sha512_block_ppc";
| $SZ=8;
| @Sigma0=(28,34,39);
| @Sigma1=(14,18,41);
| @sigma0=(1, 8, 7);
| @sigma1=(19,61, 6);
| $rounds=80;
| $LD="ld";
| $ST="std";
| $ROR="rotrdi";
| $SHR="srdi";
| } else {
| $func="sha256_block_ppc";
| $SZ=4;
| @Sigma0=( 2,13,22);
| @Sigma1=( 6,11,25);
| @sigma0=( 7,18, 3);
| @sigma1=(17,19,10);
| $rounds=64;
| $LD="lwz";
| $ST="stw";
| $ROR="rotrwi";
| $SHR="srwi";
| }
|
| $FRAME=32*$SIZE_T+16*$SZ;
| $LOCALS=6*$SIZE_T;
|
| $sp ="r1";
| $toc="r2";
| $ctx="r3"; # zapped by $a0
| $inp="r4"; # zapped by $a1
| $num="r5"; # zapped by $t0
|
| $T ="r0";
| $a0 ="r3";
| $a1 ="r4";
| $t0 ="r5";
| $t1 ="r6";
| $Tbl="r7";
|
| $A ="r8";
| $B ="r9";
| $C ="r10";
| $D ="r11";
| $E ="r12";
| $F =$t1; $t1 = "r0"; # stay away from "r13";
| $G ="r14";
| $H ="r15";
|
| @V=($A,$B,$C,$D,$E,$F,$G,$H);
| @X=("r16","r17","r18","r19","r20","r21","r22","r23",
| "r24","r25","r26","r27","r28","r29","r30","r31");
|
| $inp="r31" if($SZ==4 || $SIZE_T==8); # reassigned $inp! aliases with @X[15]
|
| sub ROUND_00_15 {
| my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_;
| $code.=<<___;
| $ROR $a0,$e,$Sigma1[0]
| $ROR $a1,$e,$Sigma1[1]
| and $t0,$f,$e
| xor $a0,$a0,$a1
| add $h,$h,$t1
| andc $t1,$g,$e
| $ROR $a1,$a1,`$Sigma1[2]-$Sigma1[1]`
| or $t0,$t0,$t1 ; Ch(e,f,g)
| add $h,$h,@X[$i%16]
| xor $a0,$a0,$a1 ; Sigma1(e)
| add $h,$h,$t0
| add $h,$h,$a0
|
| $ROR $a0,$a,$Sigma0[0]
| $ROR $a1,$a,$Sigma0[1]
| and $t0,$a,$b
| and $t1,$a,$c
| xor $a0,$a0,$a1
| $ROR $a1,$a1,`$Sigma0[2]-$Sigma0[1]`
| xor $t0,$t0,$t1
| and $t1,$b,$c
| xor $a0,$a0,$a1 ; Sigma0(a)
| add $d,$d,$h
| xor $t0,$t0,$t1 ; Maj(a,b,c)
| ___
| $code.=<<___ if ($i<15);
| $LD $t1,`($i+1)*$SZ`($Tbl)
| ___
| $code.=<<___;
| add $h,$h,$a0
| add $h,$h,$t0
|
| ___
| }
|
| sub ROUND_16_xx {
| my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_;
| $i-=16;
| $code.=<<___;
| $ROR $a0,@X[($i+1)%16],$sigma0[0]
| $ROR $a1,@X[($i+1)%16],$sigma0[1]
| $ROR $t0,@X[($i+14)%16],$sigma1[0]
| $ROR $t1,@X[($i+14)%16],$sigma1[1]
| xor $a0,$a0,$a1
| $SHR $a1,@X[($i+1)%16],$sigma0[2]
| xor $t0,$t0,$t1
| $SHR $t1,@X[($i+14)%16],$sigma1[2]
| add @X[$i],@X[$i],@X[($i+9)%16]
| xor $a0,$a0,$a1 ; sigma0(X[(i+1)&0x0f])
| xor $t0,$t0,$t1 ; sigma1(X[(i+14)&0x0f])
| $LD $t1,`$i*$SZ`($Tbl)
| add @X[$i],@X[$i],$a0
| add @X[$i],@X[$i],$t0
| ___
| &ROUND_00_15($i+16,$a,$b,$c,$d,$e,$f,$g,$h);
| }
|
| $code=<<___;
| .machine "any"
| .text
|
| .globl $func
| .align 6
| $func:
| $STU $sp,-$FRAME($sp)
| mflr r0
| $SHL $num,$num,`log(16*$SZ)/log(2)`
|
| $PUSH $ctx,`$FRAME-$SIZE_T*22`($sp)
|
| $PUSH r14,`$FRAME-$SIZE_T*18`($sp)
| $PUSH r15,`$FRAME-$SIZE_T*17`($sp)
| $PUSH r16,`$FRAME-$SIZE_T*16`($sp)
| $PUSH r17,`$FRAME-$SIZE_T*15`($sp)
| $PUSH r18,`$FRAME-$SIZE_T*14`($sp)
| $PUSH r19,`$FRAME-$SIZE_T*13`($sp)
| $PUSH r20,`$FRAME-$SIZE_T*12`($sp)
| $PUSH r21,`$FRAME-$SIZE_T*11`($sp)
| $PUSH r22,`$FRAME-$SIZE_T*10`($sp)
| $PUSH r23,`$FRAME-$SIZE_T*9`($sp)
| $PUSH r24,`$FRAME-$SIZE_T*8`($sp)
| $PUSH r25,`$FRAME-$SIZE_T*7`($sp)
| $PUSH r26,`$FRAME-$SIZE_T*6`($sp)
| $PUSH r27,`$FRAME-$SIZE_T*5`($sp)
| $PUSH r28,`$FRAME-$SIZE_T*4`($sp)
| $PUSH r29,`$FRAME-$SIZE_T*3`($sp)
| $PUSH r30,`$FRAME-$SIZE_T*2`($sp)
| $PUSH r31,`$FRAME-$SIZE_T*1`($sp)
| $PUSH r0,`$FRAME+$LRSAVE`($sp)
| ___
|
| if ($SZ==4 || $SIZE_T==8) {
| $code.=<<___;
| $LD $A,`0*$SZ`($ctx)
| mr $inp,r4 ; incarnate $inp
| $LD $B,`1*$SZ`($ctx)
| $LD $C,`2*$SZ`($ctx)
| $LD $D,`3*$SZ`($ctx)
| $LD $E,`4*$SZ`($ctx)
| $LD $F,`5*$SZ`($ctx)
| $LD $G,`6*$SZ`($ctx)
| $LD $H,`7*$SZ`($ctx)
| ___
| } else {
| for ($i=16;$i<32;$i++) {
| $code.=<<___;
| lwz r$i,`$LITTLE_ENDIAN^(4*($i-16))`($ctx)
| ___
| }
| }
|
| $code.=<<___;
| bl LPICmeup
| LPICedup:
| andi. r0,$inp,3
| bne Lunaligned
| Laligned:
| add $num,$inp,$num
| $PUSH $num,`$FRAME-$SIZE_T*24`($sp) ; end pointer
| $PUSH $inp,`$FRAME-$SIZE_T*23`($sp) ; inp pointer
| bl Lsha2_block_private
| b Ldone
|
| ; PowerPC specification allows an implementation to be ill-behaved
| ; upon unaligned access which crosses page boundary. "Better safe
| ; than sorry" principle makes me treat it specially. But I don't
| ; look for particular offending word, but rather for the input
| ; block which crosses the boundary. Once found that block is aligned
| ; and hashed separately...
| .align 4
| Lunaligned:
| subfic $t1,$inp,4096
| andi. $t1,$t1,`4096-16*$SZ` ; distance to closest page boundary
| beq Lcross_page
| $UCMP $num,$t1
| ble Laligned ; didn't cross the page boundary
| subfc $num,$t1,$num
| add $t1,$inp,$t1
| $PUSH $num,`$FRAME-$SIZE_T*25`($sp) ; save real remaining num
| $PUSH $t1,`$FRAME-$SIZE_T*24`($sp) ; intermediate end pointer
| $PUSH $inp,`$FRAME-$SIZE_T*23`($sp) ; inp pointer
| bl Lsha2_block_private
| ; $inp equals to the intermediate end pointer here
| $POP $num,`$FRAME-$SIZE_T*25`($sp) ; restore real remaining num
| Lcross_page:
| li $t1,`16*$SZ/4`
| mtctr $t1
| ___
| if ($SZ==4 || $SIZE_T==8) {
| $code.=<<___;
| addi r20,$sp,$LOCALS ; aligned spot below the frame
| Lmemcpy:
| lbz r16,0($inp)
| lbz r17,1($inp)
| lbz r18,2($inp)
| lbz r19,3($inp)
| addi $inp,$inp,4
| stb r16,0(r20)
| stb r17,1(r20)
| stb r18,2(r20)
| stb r19,3(r20)
| addi r20,r20,4
| bdnz Lmemcpy
| ___
| } else {
| $code.=<<___;
| addi r12,$sp,$LOCALS ; aligned spot below the frame
| Lmemcpy:
| lbz r8,0($inp)
| lbz r9,1($inp)
| lbz r10,2($inp)
| lbz r11,3($inp)
| addi $inp,$inp,4
| stb r8,0(r12)
| stb r9,1(r12)
| stb r10,2(r12)
| stb r11,3(r12)
| addi r12,r12,4
| bdnz Lmemcpy
| ___
| }
|
| $code.=<<___;
| $PUSH $inp,`$FRAME-$SIZE_T*26`($sp) ; save real inp
| addi $t1,$sp,`$LOCALS+16*$SZ` ; fictitious end pointer
| addi $inp,$sp,$LOCALS ; fictitious inp pointer
| $PUSH $num,`$FRAME-$SIZE_T*25`($sp) ; save real num
| $PUSH $t1,`$FRAME-$SIZE_T*24`($sp) ; end pointer
| $PUSH $inp,`$FRAME-$SIZE_T*23`($sp) ; inp pointer
| bl Lsha2_block_private
| $POP $inp,`$FRAME-$SIZE_T*26`($sp) ; restore real inp
| $POP $num,`$FRAME-$SIZE_T*25`($sp) ; restore real num
| addic. $num,$num,`-16*$SZ` ; num--
| bne Lunaligned
|
| Ldone:
| $POP r0,`$FRAME+$LRSAVE`($sp)
| $POP r14,`$FRAME-$SIZE_T*18`($sp)
| $POP r15,`$FRAME-$SIZE_T*17`($sp)
| $POP r16,`$FRAME-$SIZE_T*16`($sp)
| $POP r17,`$FRAME-$SIZE_T*15`($sp)
| $POP r18,`$FRAME-$SIZE_T*14`($sp)
| $POP r19,`$FRAME-$SIZE_T*13`($sp)
| $POP r20,`$FRAME-$SIZE_T*12`($sp)
| $POP r21,`$FRAME-$SIZE_T*11`($sp)
| $POP r22,`$FRAME-$SIZE_T*10`($sp)
| $POP r23,`$FRAME-$SIZE_T*9`($sp)
| $POP r24,`$FRAME-$SIZE_T*8`($sp)
| $POP r25,`$FRAME-$SIZE_T*7`($sp)
| $POP r26,`$FRAME-$SIZE_T*6`($sp)
| $POP r27,`$FRAME-$SIZE_T*5`($sp)
| $POP r28,`$FRAME-$SIZE_T*4`($sp)
| $POP r29,`$FRAME-$SIZE_T*3`($sp)
| $POP r30,`$FRAME-$SIZE_T*2`($sp)
| $POP r31,`$FRAME-$SIZE_T*1`($sp)
| mtlr r0
| addi $sp,$sp,$FRAME
| blr
| .long 0
| .byte 0,12,4,1,0x80,18,3,0
| .long 0
| ___
|
| if ($SZ==4 || $SIZE_T==8) {
| $code.=<<___;
| .align 4
| Lsha2_block_private:
| $LD $t1,0($Tbl)
| ___
| for($i=0;$i<16;$i++) {
| $code.=<<___ if ($SZ==4 && !$LITTLE_ENDIAN);
| lwz @X[$i],`$i*$SZ`($inp)
| ___
| $code.=<<___ if ($SZ==4 && $LITTLE_ENDIAN);
| lwz $a0,`$i*$SZ`($inp)
| rotlwi @X[$i],$a0,8
| rlwimi @X[$i],$a0,24,0,7
| rlwimi @X[$i],$a0,24,16,23
| ___
| # 64-bit loads are split to 2x32-bit ones, as CPU can't handle
| # unaligned 64-bit loads, only 32-bit ones...
| $code.=<<___ if ($SZ==8 && !$LITTLE_ENDIAN);
| lwz $t0,`$i*$SZ`($inp)
| lwz @X[$i],`$i*$SZ+4`($inp)
| insrdi @X[$i],$t0,32,0
| ___
| $code.=<<___ if ($SZ==8 && $LITTLE_ENDIAN);
| lwz $a0,`$i*$SZ`($inp)
| lwz $a1,`$i*$SZ+4`($inp)
| rotlwi $t0,$a0,8
| rotlwi @X[$i],$a1,8
| rlwimi $t0,$a0,24,0,7
| rlwimi @X[$i],$a1,24,0,7
| rlwimi $t0,$a0,24,16,23
| rlwimi @X[$i],$a1,24,16,23
| insrdi @X[$i],$t0,32,0
| ___
| &ROUND_00_15($i,@V);
| unshift(@V,pop(@V));
| }
| $code.=<<___;
| li $t0,`$rounds/16-1`
| mtctr $t0
| .align 4
| Lrounds:
| addi $Tbl,$Tbl,`16*$SZ`
| ___
| for(;$i<32;$i++) {
| &ROUND_16_xx($i,@V);
| unshift(@V,pop(@V));
| }
| $code.=<<___;
| bdnz Lrounds
|
| $POP $ctx,`$FRAME-$SIZE_T*22`($sp)
| $POP $inp,`$FRAME-$SIZE_T*23`($sp) ; inp pointer
| $POP $num,`$FRAME-$SIZE_T*24`($sp) ; end pointer
| subi $Tbl,$Tbl,`($rounds-16)*$SZ` ; rewind Tbl
|
| $LD r16,`0*$SZ`($ctx)
| $LD r17,`1*$SZ`($ctx)
| $LD r18,`2*$SZ`($ctx)
| $LD r19,`3*$SZ`($ctx)
| $LD r20,`4*$SZ`($ctx)
| $LD r21,`5*$SZ`($ctx)
| $LD r22,`6*$SZ`($ctx)
| addi $inp,$inp,`16*$SZ` ; advance inp
| $LD r23,`7*$SZ`($ctx)
| add $A,$A,r16
| add $B,$B,r17
| $PUSH $inp,`$FRAME-$SIZE_T*23`($sp)
| add $C,$C,r18
| $ST $A,`0*$SZ`($ctx)
| add $D,$D,r19
| $ST $B,`1*$SZ`($ctx)
| add $E,$E,r20
| $ST $C,`2*$SZ`($ctx)
| add $F,$F,r21
| $ST $D,`3*$SZ`($ctx)
| add $G,$G,r22
| $ST $E,`4*$SZ`($ctx)
| add $H,$H,r23
| $ST $F,`5*$SZ`($ctx)
| $ST $G,`6*$SZ`($ctx)
| $UCMP $inp,$num
| $ST $H,`7*$SZ`($ctx)
| bne Lsha2_block_private
| blr
| .long 0
| .byte 0,12,0x14,0,0,0,0,0
| .size $func,.-$func
| ___
| } else {
| ########################################################################
| # SHA512 for PPC32, X vector is off-loaded to stack...
| #
| # | sha512
| # | -m32
| # ----------------------+-----------------------
| # PPC74x0,gcc-4.0.1 | +48%
| # POWER6,gcc-4.4.6 | +124%(*)
| # POWER7,gcc-4.4.6 | +79%(*)
| # e300,gcc-4.1.0 | +167%
| #
| # (*) ~1/3 of -m64 result [and ~20% better than -m32 code generated
| # by xlc-12.1]
|
| my $XOFF=$LOCALS;
|
| my @V=map("r$_",(16..31)); # A..H
|
| my ($s0,$s1,$t0,$t1,$t2,$t3,$a0,$a1,$a2,$a3)=map("r$_",(0,5,6,8..12,14,15));
| my ($x0,$x1)=("r3","r4"); # zaps $ctx and $inp
|
| sub ROUND_00_15_ppc32 {
| my ($i, $ahi,$alo,$bhi,$blo,$chi,$clo,$dhi,$dlo,
| $ehi,$elo,$fhi,$flo,$ghi,$glo,$hhi,$hlo)=@_;
|
| $code.=<<___;
| lwz $t2,`$SZ*($i%16)+($LITTLE_ENDIAN^4)`($Tbl)
| xor $a0,$flo,$glo
| lwz $t3,`$SZ*($i%16)+($LITTLE_ENDIAN^0)`($Tbl)
| xor $a1,$fhi,$ghi
| addc $hlo,$hlo,$t0 ; h+=x[i]
| stw $t0,`$XOFF+0+$SZ*($i%16)`($sp) ; save x[i]
|
| srwi $s0,$elo,$Sigma1[0]
| srwi $s1,$ehi,$Sigma1[0]
| and $a0,$a0,$elo
| adde $hhi,$hhi,$t1
| and $a1,$a1,$ehi
| stw $t1,`$XOFF+4+$SZ*($i%16)`($sp)
| srwi $t0,$elo,$Sigma1[1]
| srwi $t1,$ehi,$Sigma1[1]
| addc $hlo,$hlo,$t2 ; h+=K512[i]
| insrwi $s0,$ehi,$Sigma1[0],0
| insrwi $s1,$elo,$Sigma1[0],0
| xor $a0,$a0,$glo ; Ch(e,f,g)
| adde $hhi,$hhi,$t3
| xor $a1,$a1,$ghi
| insrwi $t0,$ehi,$Sigma1[1],0
| insrwi $t1,$elo,$Sigma1[1],0
| addc $hlo,$hlo,$a0 ; h+=Ch(e,f,g)
| srwi $t2,$ehi,$Sigma1[2]-32
| srwi $t3,$elo,$Sigma1[2]-32
| xor $s0,$s0,$t0
| xor $s1,$s1,$t1
| insrwi $t2,$elo,$Sigma1[2]-32,0
| insrwi $t3,$ehi,$Sigma1[2]-32,0
| xor $a0,$alo,$blo ; a^b, b^c in next round
| adde $hhi,$hhi,$a1
| xor $a1,$ahi,$bhi
| xor $s0,$s0,$t2 ; Sigma1(e)
| xor $s1,$s1,$t3
|
| srwi $t0,$alo,$Sigma0[0]
| and $a2,$a2,$a0
| addc $hlo,$hlo,$s0 ; h+=Sigma1(e)
| and $a3,$a3,$a1
| srwi $t1,$ahi,$Sigma0[0]
| srwi $s0,$ahi,$Sigma0[1]-32
| adde $hhi,$hhi,$s1
| srwi $s1,$alo,$Sigma0[1]-32
| insrwi $t0,$ahi,$Sigma0[0],0
| insrwi $t1,$alo,$Sigma0[0],0
| xor $a2,$a2,$blo ; Maj(a,b,c)
| addc $dlo,$dlo,$hlo ; d+=h
| xor $a3,$a3,$bhi
| insrwi $s0,$alo,$Sigma0[1]-32,0
| insrwi $s1,$ahi,$Sigma0[1]-32,0
| adde $dhi,$dhi,$hhi
| srwi $t2,$ahi,$Sigma0[2]-32
| srwi $t3,$alo,$Sigma0[2]-32
| xor $s0,$s0,$t0
| addc $hlo,$hlo,$a2 ; h+=Maj(a,b,c)
| xor $s1,$s1,$t1
| insrwi $t2,$alo,$Sigma0[2]-32,0
| insrwi $t3,$ahi,$Sigma0[2]-32,0
| adde $hhi,$hhi,$a3
| ___
| $code.=<<___ if ($i>=15);
| lwz $t0,`$XOFF+0+$SZ*(($i+2)%16)`($sp)
| lwz $t1,`$XOFF+4+$SZ*(($i+2)%16)`($sp)
| ___
| $code.=<<___ if ($i<15 && !$LITTLE_ENDIAN);
| lwz $t1,`$SZ*($i+1)+0`($inp)
| lwz $t0,`$SZ*($i+1)+4`($inp)
| ___
| $code.=<<___ if ($i<15 && $LITTLE_ENDIAN);
| lwz $a2,`$SZ*($i+1)+0`($inp)
| lwz $a3,`$SZ*($i+1)+4`($inp)
| rotlwi $t1,$a2,8
| rotlwi $t0,$a3,8
| rlwimi $t1,$a2,24,0,7
| rlwimi $t0,$a3,24,0,7
| rlwimi $t1,$a2,24,16,23
| rlwimi $t0,$a3,24,16,23
| ___
| $code.=<<___;
| xor $s0,$s0,$t2 ; Sigma0(a)
| xor $s1,$s1,$t3
| addc $hlo,$hlo,$s0 ; h+=Sigma0(a)
| adde $hhi,$hhi,$s1
| ___
| $code.=<<___ if ($i==15);
| lwz $x0,`$XOFF+0+$SZ*(($i+1)%16)`($sp)
| lwz $x1,`$XOFF+4+$SZ*(($i+1)%16)`($sp)
| ___
| }
| sub ROUND_16_xx_ppc32 {
| my ($i, $ahi,$alo,$bhi,$blo,$chi,$clo,$dhi,$dlo,
| $ehi,$elo,$fhi,$flo,$ghi,$glo,$hhi,$hlo)=@_;
|
| $code.=<<___;
| srwi $s0,$t0,$sigma0[0]
| srwi $s1,$t1,$sigma0[0]
| srwi $t2,$t0,$sigma0[1]
| srwi $t3,$t1,$sigma0[1]
| insrwi $s0,$t1,$sigma0[0],0
| insrwi $s1,$t0,$sigma0[0],0
| srwi $a0,$t0,$sigma0[2]
| insrwi $t2,$t1,$sigma0[1],0
| insrwi $t3,$t0,$sigma0[1],0
| insrwi $a0,$t1,$sigma0[2],0
| xor $s0,$s0,$t2
| lwz $t2,`$XOFF+0+$SZ*(($i+14)%16)`($sp)
| srwi $a1,$t1,$sigma0[2]
| xor $s1,$s1,$t3
| lwz $t3,`$XOFF+4+$SZ*(($i+14)%16)`($sp)
| xor $a0,$a0,$s0
| srwi $s0,$t2,$sigma1[0]
| xor $a1,$a1,$s1
| srwi $s1,$t3,$sigma1[0]
| addc $x0,$x0,$a0 ; x[i]+=sigma0(x[i+1])
| srwi $a0,$t3,$sigma1[1]-32
| insrwi $s0,$t3,$sigma1[0],0
| insrwi $s1,$t2,$sigma1[0],0
| adde $x1,$x1,$a1
| srwi $a1,$t2,$sigma1[1]-32
|
| insrwi $a0,$t2,$sigma1[1]-32,0
| srwi $t2,$t2,$sigma1[2]
| insrwi $a1,$t3,$sigma1[1]-32,0
| insrwi $t2,$t3,$sigma1[2],0
| xor $s0,$s0,$a0
| lwz $a0,`$XOFF+0+$SZ*(($i+9)%16)`($sp)
| srwi $t3,$t3,$sigma1[2]
| xor $s1,$s1,$a1
| lwz $a1,`$XOFF+4+$SZ*(($i+9)%16)`($sp)
| xor $s0,$s0,$t2
| addc $x0,$x0,$a0 ; x[i]+=x[i+9]
| xor $s1,$s1,$t3
| adde $x1,$x1,$a1
| addc $x0,$x0,$s0 ; x[i]+=sigma1(x[i+14])
| adde $x1,$x1,$s1
| ___
| ($t0,$t1,$x0,$x1) = ($x0,$x1,$t0,$t1);
| &ROUND_00_15_ppc32(@_);
| }
|
| $code.=<<___;
| .align 4
| Lsha2_block_private:
| ___
| $code.=<<___ if (!$LITTLE_ENDIAN);
| lwz $t1,0($inp)
| xor $a2,@V[3],@V[5] ; B^C, magic seed
| lwz $t0,4($inp)
| xor $a3,@V[2],@V[4]
| ___
| $code.=<<___ if ($LITTLE_ENDIAN);
| lwz $a1,0($inp)
| xor $a2,@V[3],@V[5] ; B^C, magic seed
| lwz $a0,4($inp)
| xor $a3,@V[2],@V[4]
| rotlwi $t1,$a1,8
| rotlwi $t0,$a0,8
| rlwimi $t1,$a1,24,0,7
| rlwimi $t0,$a0,24,0,7
| rlwimi $t1,$a1,24,16,23
| rlwimi $t0,$a0,24,16,23
| ___
| for($i=0;$i<16;$i++) {
| &ROUND_00_15_ppc32($i,@V);
| unshift(@V,pop(@V)); unshift(@V,pop(@V));
| ($a0,$a1,$a2,$a3) = ($a2,$a3,$a0,$a1);
| }
| $code.=<<___;
| li $a0,`$rounds/16-1`
| mtctr $a0
| .align 4
| Lrounds:
| addi $Tbl,$Tbl,`16*$SZ`
| ___
| for(;$i<32;$i++) {
| &ROUND_16_xx_ppc32($i,@V);
| unshift(@V,pop(@V)); unshift(@V,pop(@V));
| ($a0,$a1,$a2,$a3) = ($a2,$a3,$a0,$a1);
| }
| $code.=<<___;
| bdnz Lrounds
|
| $POP $ctx,`$FRAME-$SIZE_T*22`($sp)
| $POP $inp,`$FRAME-$SIZE_T*23`($sp) ; inp pointer
| $POP $num,`$FRAME-$SIZE_T*24`($sp) ; end pointer
| subi $Tbl,$Tbl,`($rounds-16)*$SZ` ; rewind Tbl
|
| lwz $t0,`$LITTLE_ENDIAN^0`($ctx)
| lwz $t1,`$LITTLE_ENDIAN^4`($ctx)
| lwz $t2,`$LITTLE_ENDIAN^8`($ctx)
| lwz $t3,`$LITTLE_ENDIAN^12`($ctx)
| lwz $a0,`$LITTLE_ENDIAN^16`($ctx)
| lwz $a1,`$LITTLE_ENDIAN^20`($ctx)
| lwz $a2,`$LITTLE_ENDIAN^24`($ctx)
| addc @V[1],@V[1],$t1
| lwz $a3,`$LITTLE_ENDIAN^28`($ctx)
| adde @V[0],@V[0],$t0
| lwz $t0,`$LITTLE_ENDIAN^32`($ctx)
| addc @V[3],@V[3],$t3
| lwz $t1,`$LITTLE_ENDIAN^36`($ctx)
| adde @V[2],@V[2],$t2
| lwz $t2,`$LITTLE_ENDIAN^40`($ctx)
| addc @V[5],@V[5],$a1
| lwz $t3,`$LITTLE_ENDIAN^44`($ctx)
| adde @V[4],@V[4],$a0
| lwz $a0,`$LITTLE_ENDIAN^48`($ctx)
| addc @V[7],@V[7],$a3
| lwz $a1,`$LITTLE_ENDIAN^52`($ctx)
| adde @V[6],@V[6],$a2
| lwz $a2,`$LITTLE_ENDIAN^56`($ctx)
| addc @V[9],@V[9],$t1
| lwz $a3,`$LITTLE_ENDIAN^60`($ctx)
| adde @V[8],@V[8],$t0
| stw @V[0],`$LITTLE_ENDIAN^0`($ctx)
| stw @V[1],`$LITTLE_ENDIAN^4`($ctx)
| addc @V[11],@V[11],$t3
| stw @V[2],`$LITTLE_ENDIAN^8`($ctx)
| stw @V[3],`$LITTLE_ENDIAN^12`($ctx)
| adde @V[10],@V[10],$t2
| stw @V[4],`$LITTLE_ENDIAN^16`($ctx)
| stw @V[5],`$LITTLE_ENDIAN^20`($ctx)
| addc @V[13],@V[13],$a1
| stw @V[6],`$LITTLE_ENDIAN^24`($ctx)
| stw @V[7],`$LITTLE_ENDIAN^28`($ctx)
| adde @V[12],@V[12],$a0
| stw @V[8],`$LITTLE_ENDIAN^32`($ctx)
| stw @V[9],`$LITTLE_ENDIAN^36`($ctx)
| addc @V[15],@V[15],$a3
| stw @V[10],`$LITTLE_ENDIAN^40`($ctx)
| stw @V[11],`$LITTLE_ENDIAN^44`($ctx)
| adde @V[14],@V[14],$a2
| stw @V[12],`$LITTLE_ENDIAN^48`($ctx)
| stw @V[13],`$LITTLE_ENDIAN^52`($ctx)
| stw @V[14],`$LITTLE_ENDIAN^56`($ctx)
| stw @V[15],`$LITTLE_ENDIAN^60`($ctx)
|
| addi $inp,$inp,`16*$SZ` ; advance inp
| $PUSH $inp,`$FRAME-$SIZE_T*23`($sp)
| $UCMP $inp,$num
| bne Lsha2_block_private
| blr
| .long 0
| .byte 0,12,0x14,0,0,0,0,0
| .size $func,.-$func
| ___
| }
|
| # Ugly hack here, because PPC assembler syntax seem to vary too
| # much from platforms to platform...
| $code.=<<___;
| .align 6
| LPICmeup:
| mflr r0
| bcl 20,31,\$+4
| mflr $Tbl ; vvvvvv "distance" between . and 1st data entry
| addi $Tbl,$Tbl,`64-8`
| mtlr r0
| blr
| .long 0
| .byte 0,12,0x14,0,0,0,0,0
| .space `64-9*4`
| ___
| $code.=<<___ if ($SZ==8);
| .quad 0x428a2f98d728ae22,0x7137449123ef65cd
| .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
| .quad 0x3956c25bf348b538,0x59f111f1b605d019
| .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118
| .quad 0xd807aa98a3030242,0x12835b0145706fbe
| .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
| .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1
| .quad 0x9bdc06a725c71235,0xc19bf174cf692694
| .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3
| .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
| .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483
| .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
| .quad 0x983e5152ee66dfab,0xa831c66d2db43210
| .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4
| .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725
| .quad 0x06ca6351e003826f,0x142929670a0e6e70
| .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926
| .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
| .quad 0x650a73548baf63de,0x766a0abb3c77b2a8
| .quad 0x81c2c92e47edaee6,0x92722c851482353b
| .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001
| .quad 0xc24b8b70d0f89791,0xc76c51a30654be30
| .quad 0xd192e819d6ef5218,0xd69906245565a910
| .quad 0xf40e35855771202a,0x106aa07032bbd1b8
| .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53
| .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
| .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
| .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
| .quad 0x748f82ee5defb2fc,0x78a5636f43172f60
| .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec
| .quad 0x90befffa23631e28,0xa4506cebde82bde9
| .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b
| .quad 0xca273eceea26619c,0xd186b8c721c0c207
| .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
| .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6
| .quad 0x113f9804bef90dae,0x1b710b35131c471b
| .quad 0x28db77f523047d84,0x32caab7b40c72493
| .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
| .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
| .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817
| ___
| $code.=<<___ if ($SZ==4);
| .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
| .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
| .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
| .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
| .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
| .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
| .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
| .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
| .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
| .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
| .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
| .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
| .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
| .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
| .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
| .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
| ___
|
| $code =~ s/\`([^\`]*)\`/eval $1/gem;
| print $code;
| close STDOUT or die "error closing STDOUT: $!";
|
|
