$(PERL) asm/chacha-x86.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@
chacha-x86_64.s: asm/chacha-x86_64.pl
$(PERL) asm/chacha-x86_64.pl $(PERLASM_SCHEME) > $@
+chacha-ppc.s: asm/chacha-ppc.pl
+ $(PERL) asm/chacha-ppc.pl $(PERLASM_SCHEME) $@
chacha-%.S: asm/chacha-%.pl; $(PERL) $< $(PERLASM_SCHEME) $@
--- /dev/null
+#!/usr/bin/env perl
+#
+# ====================================================================
+# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+# ====================================================================
+#
+# October 2015
+#
+# ChaCha20 for PowerPC/AltiVec.
+#
+# Performance in cycles per byte out of large buffer.
+#
+# IALU/gcc-4.x 3xAltiVec+1xIALU
+#
+# Freescale e300 13.6/+115% -
+# PPC74x0 6.81/+310% 4.66
+# POWER7 8.62/+61% 4.27
+# POWER8 8.70/+51% 3.96
+
+$flavour = shift;
+
+if ($flavour =~ /64/) {
+ $SIZE_T =8;
+ $LRSAVE =2*$SIZE_T;
+ $STU ="stdu";
+ $POP ="ld";
+ $PUSH ="std";
+ $UCMP ="cmpld";
+} elsif ($flavour =~ /32/) {
+ $SIZE_T =4;
+ $LRSAVE =$SIZE_T;
+ $STU ="stwu";
+ $POP ="lwz";
+ $PUSH ="stw";
+ $UCMP ="cmplw";
+} else { die "nonsense $flavour"; }
+
+$LITTLE_ENDIAN = ($flavour=~/le$/) ? 1 : 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 ".shift || die "can't call $xlate: $!";
+
+$LOCALS=6*$SIZE_T;
+$FRAME=$LOCALS+64+18*$SIZE_T; # 64 is for local variables
+
+sub AUTOLOAD() # thunk [simplified] x86-style perlasm
+{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://; $opcode =~ s/_/\./;
+ $code .= "\t$opcode\t".join(',',@_)."\n";
+}
+
+my $sp = "r1";
+
+my ($out,$inp,$len,$key,$ctr) = map("r$_",(3..7));
+
+my @x=map("r$_",(16..31));
+my @d=map("r$_",(11,12,14,15));
+my @t=map("r$_",(7..10));
+
+sub ROUND {
+my ($a0,$b0,$c0,$d0)=@_;
+my ($a1,$b1,$c1,$d1)=map(($_&~3)+(($_+1)&3),($a0,$b0,$c0,$d0));
+my ($a2,$b2,$c2,$d2)=map(($_&~3)+(($_+1)&3),($a1,$b1,$c1,$d1));
+my ($a3,$b3,$c3,$d3)=map(($_&~3)+(($_+1)&3),($a2,$b2,$c2,$d2));
+
+ (
+ "&add (@x[$a0],@x[$a0],@x[$b0])",
+ "&add (@x[$a1],@x[$a1],@x[$b1])",
+ "&add (@x[$a2],@x[$a2],@x[$b2])",
+ "&add (@x[$a3],@x[$a3],@x[$b3])",
+ "&xor (@x[$d0],@x[$d0],@x[$a0])",
+ "&xor (@x[$d1],@x[$d1],@x[$a1])",
+ "&xor (@x[$d2],@x[$d2],@x[$a2])",
+ "&xor (@x[$d3],@x[$d3],@x[$a3])",
+ "&rotlwi (@x[$d0],@x[$d0],16)",
+ "&rotlwi (@x[$d1],@x[$d1],16)",
+ "&rotlwi (@x[$d2],@x[$d2],16)",
+ "&rotlwi (@x[$d3],@x[$d3],16)",
+
+ "&add (@x[$c0],@x[$c0],@x[$d0])",
+ "&add (@x[$c1],@x[$c1],@x[$d1])",
+ "&add (@x[$c2],@x[$c2],@x[$d2])",
+ "&add (@x[$c3],@x[$c3],@x[$d3])",
+ "&xor (@x[$b0],@x[$b0],@x[$c0])",
+ "&xor (@x[$b1],@x[$b1],@x[$c1])",
+ "&xor (@x[$b2],@x[$b2],@x[$c2])",
+ "&xor (@x[$b3],@x[$b3],@x[$c3])",
+ "&rotlwi (@x[$b0],@x[$b0],12)",
+ "&rotlwi (@x[$b1],@x[$b1],12)",
+ "&rotlwi (@x[$b2],@x[$b2],12)",
+ "&rotlwi (@x[$b3],@x[$b3],12)",
+
+ "&add (@x[$a0],@x[$a0],@x[$b0])",
+ "&add (@x[$a1],@x[$a1],@x[$b1])",
+ "&add (@x[$a2],@x[$a2],@x[$b2])",
+ "&add (@x[$a3],@x[$a3],@x[$b3])",
+ "&xor (@x[$d0],@x[$d0],@x[$a0])",
+ "&xor (@x[$d1],@x[$d1],@x[$a1])",
+ "&xor (@x[$d2],@x[$d2],@x[$a2])",
+ "&xor (@x[$d3],@x[$d3],@x[$a3])",
+ "&rotlwi (@x[$d0],@x[$d0],8)",
+ "&rotlwi (@x[$d1],@x[$d1],8)",
+ "&rotlwi (@x[$d2],@x[$d2],8)",
+ "&rotlwi (@x[$d3],@x[$d3],8)",
+
+ "&add (@x[$c0],@x[$c0],@x[$d0])",
+ "&add (@x[$c1],@x[$c1],@x[$d1])",
+ "&add (@x[$c2],@x[$c2],@x[$d2])",
+ "&add (@x[$c3],@x[$c3],@x[$d3])",
+ "&xor (@x[$b0],@x[$b0],@x[$c0])",
+ "&xor (@x[$b1],@x[$b1],@x[$c1])",
+ "&xor (@x[$b2],@x[$b2],@x[$c2])",
+ "&xor (@x[$b3],@x[$b3],@x[$c3])",
+ "&rotlwi (@x[$b0],@x[$b0],7)",
+ "&rotlwi (@x[$b1],@x[$b1],7)",
+ "&rotlwi (@x[$b2],@x[$b2],7)",
+ "&rotlwi (@x[$b3],@x[$b3],7)"
+ );
+}
+
+$code.=<<___;
+.machine "any"
+
+.globl .ChaCha20_ctr32_int
+.align 5
+.ChaCha20_ctr32_int:
+__ChaCha20_ctr32_int:
+ ${UCMP}i $len,0
+ beqlr-
+
+ $STU $sp,-$FRAME($sp)
+ mflr r0
+
+ $PUSH r14,`$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)
+
+ lwz @d[0],0($ctr) # load counter
+ lwz @d[1],4($ctr)
+ lwz @d[2],8($ctr)
+ lwz @d[3],12($ctr)
+
+ bl __ChaCha20_1x
+
+ $POP r0,`$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,$FRAME
+ blr
+ .long 0
+ .byte 0,12,4,1,0x80,18,5,0
+ .long 0
+.size .ChaCha20_ctr32_int,.-.ChaCha20_ctr32_int
+
+.align 5
+__ChaCha20_1x:
+Loop_outer:
+ lis @x[0],0x6170 # synthesize sigma
+ lis @x[1],0x3320
+ lis @x[2],0x7962
+ lis @x[3],0x6b20
+ ori @x[0],@x[0],0x7865
+ ori @x[1],@x[1],0x646e
+ ori @x[2],@x[2],0x2d32
+ ori @x[3],@x[3],0x6574
+
+ li r0,10 # inner loop counter
+ lwz @x[4],0($key) # load key
+ lwz @x[5],4($key)
+ lwz @x[6],8($key)
+ lwz @x[7],12($key)
+ lwz @x[8],16($key)
+ mr @x[12],@d[0] # copy counter
+ lwz @x[9],20($key)
+ mr @x[13],@d[1]
+ lwz @x[10],24($key)
+ mr @x[14],@d[2]
+ lwz @x[11],28($key)
+ mr @x[15],@d[3]
+
+ mr @t[0],@x[4]
+ mr @t[1],@x[5]
+ mr @t[2],@x[6]
+ mr @t[3],@x[7]
+
+ mtctr r0
+Loop:
+___
+ foreach (&ROUND(0, 4, 8,12)) { eval; }
+ foreach (&ROUND(0, 5,10,15)) { eval; }
+$code.=<<___;
+ bdnz Loop
+
+ subic $len,$len,64 # $len-=64
+ addi @x[0],@x[0],0x7865 # accumulate key block
+ addi @x[1],@x[1],0x646e
+ addi @x[2],@x[2],0x2d32
+ addi @x[3],@x[3],0x6574
+ addis @x[0],@x[0],0x6170
+ addis @x[1],@x[1],0x3320
+ addis @x[2],@x[2],0x7962
+ addis @x[3],@x[3],0x6b20
+
+ subfe. r0,r0,r0 # borrow?-1:0
+ add @x[4],@x[4],@t[0]
+ lwz @t[0],16($key)
+ add @x[5],@x[5],@t[1]
+ lwz @t[1],20($key)
+ add @x[6],@x[6],@t[2]
+ lwz @t[2],24($key)
+ add @x[7],@x[7],@t[3]
+ lwz @t[3],28($key)
+ add @x[8],@x[8],@t[0]
+ add @x[9],@x[9],@t[1]
+ add @x[10],@x[10],@t[2]
+ add @x[11],@x[11],@t[3]
+
+ add @x[12],@x[12],@d[0]
+ add @x[13],@x[13],@d[1]
+ add @x[14],@x[14],@d[2]
+ add @x[15],@x[15],@d[3]
+ addi @d[0],@d[0],1 # increment counter
+___
+if (!$LITTLE_ENDIAN) { for($i=0;$i<16;$i++) { # flip byte order
+$code.=<<___;
+ mr @t[$i&3],@x[$i]
+ rotlwi @x[$i],@x[$i],8
+ rlwimi @x[$i],@t[$i&3],24,0,7
+ rlwimi @x[$i],@t[$i&3],24,16,23
+___
+} }
+$code.=<<___;
+ bne Ltail # $len-=64 borrowed
+
+ lwz @t[0],0($inp) # load input, aligned or not
+ lwz @t[1],4($inp)
+ ${UCMP}i $len,0 # done already?
+ lwz @t[2],8($inp)
+ lwz @t[3],12($inp)
+ xor @x[0],@x[0],@t[0] # xor with input
+ lwz @t[0],16($inp)
+ xor @x[1],@x[1],@t[1]
+ lwz @t[1],20($inp)
+ xor @x[2],@x[2],@t[2]
+ lwz @t[2],24($inp)
+ xor @x[3],@x[3],@t[3]
+ lwz @t[3],28($inp)
+ xor @x[4],@x[4],@t[0]
+ lwz @t[0],32($inp)
+ xor @x[5],@x[5],@t[1]
+ lwz @t[1],36($inp)
+ xor @x[6],@x[6],@t[2]
+ lwz @t[2],40($inp)
+ xor @x[7],@x[7],@t[3]
+ lwz @t[3],44($inp)
+ xor @x[8],@x[8],@t[0]
+ lwz @t[0],48($inp)
+ xor @x[9],@x[9],@t[1]
+ lwz @t[1],52($inp)
+ xor @x[10],@x[10],@t[2]
+ lwz @t[2],56($inp)
+ xor @x[11],@x[11],@t[3]
+ lwz @t[3],60($inp)
+ xor @x[12],@x[12],@t[0]
+ stw @x[0],0($out) # store output, aligned or not
+ xor @x[13],@x[13],@t[1]
+ stw @x[1],4($out)
+ xor @x[14],@x[14],@t[2]
+ stw @x[2],8($out)
+ xor @x[15],@x[15],@t[3]
+ stw @x[3],12($out)
+ stw @x[4],16($out)
+ stw @x[5],20($out)
+ stw @x[6],24($out)
+ stw @x[7],28($out)
+ stw @x[8],32($out)
+ stw @x[9],36($out)
+ stw @x[10],40($out)
+ stw @x[11],44($out)
+ stw @x[12],48($out)
+ stw @x[13],52($out)
+ stw @x[14],56($out)
+ addi $inp,$inp,64
+ stw @x[15],60($out)
+ addi $out,$out,64
+
+ bne Loop_outer
+
+ blr
+
+.align 4
+Ltail:
+ addi $len,$len,64 # restore tail length
+ subi $inp,$inp,1 # prepare for *++ptr
+ subi $out,$out,1
+ addi @t[0],$sp,$LOCALS-1
+ mtctr $len
+
+ stw @x[0],`$LOCALS+0`($sp) # save whole block to stack
+ stw @x[1],`$LOCALS+4`($sp)
+ stw @x[2],`$LOCALS+8`($sp)
+ stw @x[3],`$LOCALS+12`($sp)
+ stw @x[4],`$LOCALS+16`($sp)
+ stw @x[5],`$LOCALS+20`($sp)
+ stw @x[6],`$LOCALS+24`($sp)
+ stw @x[7],`$LOCALS+28`($sp)
+ stw @x[8],`$LOCALS+32`($sp)
+ stw @x[9],`$LOCALS+36`($sp)
+ stw @x[10],`$LOCALS+40`($sp)
+ stw @x[11],`$LOCALS+44`($sp)
+ stw @x[12],`$LOCALS+48`($sp)
+ stw @x[13],`$LOCALS+52`($sp)
+ stw @x[14],`$LOCALS+56`($sp)
+ stw @x[15],`$LOCALS+60`($sp)
+
+Loop_tail: # byte-by-byte loop
+ lbzu @d[0],1($inp)
+ lbzu @x[0],1(@t[0])
+ xor @d[1],@d[0],@x[0]
+ stbu @d[1],1($out)
+ bdnz Loop_tail
+
+ stw $sp,`$LOCALS+0`($sp) # wipe block on stack
+ stw $sp,`$LOCALS+4`($sp)
+ stw $sp,`$LOCALS+8`($sp)
+ stw $sp,`$LOCALS+12`($sp)
+ stw $sp,`$LOCALS+16`($sp)
+ stw $sp,`$LOCALS+20`($sp)
+ stw $sp,`$LOCALS+24`($sp)
+ stw $sp,`$LOCALS+28`($sp)
+ stw $sp,`$LOCALS+32`($sp)
+ stw $sp,`$LOCALS+36`($sp)
+ stw $sp,`$LOCALS+40`($sp)
+ stw $sp,`$LOCALS+44`($sp)
+ stw $sp,`$LOCALS+48`($sp)
+ stw $sp,`$LOCALS+52`($sp)
+ stw $sp,`$LOCALS+56`($sp)
+ stw $sp,`$LOCALS+60`($sp)
+
+ blr
+ .long 0
+ .byte 0,12,0x14,0,0,0,0,0
+___
+
+{{{
+my ($A0,$B0,$C0,$D0,$A1,$B1,$C1,$D1,$A2,$B2,$C2,$D2,$T0,$T1,$T2) =
+ map("v$_",(0..14));
+my (@K)=map("v$_",(15..20));
+my ($FOUR,$sixteen,$twenty4,$twenty,$twelve,$twenty5,$seven) =
+ map("v$_",(21..27));
+my ($inpperm,$outperm,$outmask) = map("v$_",(28..30));
+my @D=("v31",$seven,$T0,$T1,$T2);
+
+my $FRAME=$LOCALS+64+13*16+18*$SIZE_T; # 13*16 is for v20-v31 offload
+
+sub VMXROUND {
+my $odd = pop;
+my ($a,$b,$c,$d,$t)=@_;
+
+ (
+ "&vadduwm ('$a','$a','$b')",
+ "&vxor ('$d','$d','$a')",
+ "&vperm ('$d','$d','$d','$sixteen')",
+
+ "&vadduwm ('$c','$c','$d')",
+ "&vxor ('$t','$b','$c')",
+ "&vsrw ('$b','$t','$twenty')",
+ "&vslw ('$t','$t','$twelve')",
+ "&vor ('$b','$b','$t')",
+
+ "&vadduwm ('$a','$a','$b')",
+ "&vxor ('$d','$d','$a')",
+ "&vperm ('$d','$d','$d','$twenty4')",
+
+ "&vadduwm ('$c','$c','$d')",
+ "&vxor ('$t','$b','$c')",
+ "&vsrw ('$b','$t','$twenty5')",
+ "&vslw ('$t','$t','$seven')",
+ "&vor ('$b','$b','$t')",
+
+ "&vsldoi ('$c','$c','$c',8)",
+ "&vsldoi ('$b','$b','$b',$odd?4:12)",
+ "&vsldoi ('$d','$d','$d',$odd?12:4)"
+ );
+}
+
+$code.=<<___;
+
+.globl .ChaCha20_ctr32_vmx
+.align 5
+.ChaCha20_ctr32_vmx:
+ ${UCMP}i $len,256
+ blt __ChaCha20_ctr32_int
+
+ $STU $sp,-$FRAME($sp)
+ mflr r0
+ li r10,`15+$LOCALS+64`
+ li r11,`31+$LOCALS+64`
+ mfspr r12,256
+ stvx v20,r10,$sp
+ addi r10,r10,32
+ stvx v21,r11,$sp
+ addi r11,r11,32
+ stvx v22,r10,$sp
+ addi r10,r10,32
+ stvx v23,r11,$sp
+ addi r11,r11,32
+ stvx v24,r10,$sp
+ addi r10,r10,32
+ stvx v25,r11,$sp
+ addi r11,r11,32
+ stvx v26,r10,$sp
+ addi r10,r10,32
+ stvx v27,r11,$sp
+ addi r11,r11,32
+ stvx v28,r10,$sp
+ addi r10,r10,32
+ stvx v29,r11,$sp
+ addi r11,r11,32
+ stvx v30,r10,$sp
+ stvx v31,r11,$sp
+ stw r12,`$FRAME-$SIZE_T*18-4`($sp) # save vrsave
+ $PUSH r14,`$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)
+ li 12,-1
+ $PUSH r0, `$FRAME+$LRSAVE`($sp)
+ mtspr 256,r12 # preserve all AltiVec registers
+
+ bl Lconsts # returns pointer Lsigma in r12
+ li @x[0],16
+ li @x[1],32
+ li @x[2],48
+ li @x[3],64
+ li @x[4],31 # 31 is not a typo
+ li @x[5],15 # nor is 15
+
+ lvx @K[1],0,$key # load key
+ ?lvsr $T0,0,$key # prepare unaligned load
+ lvx @K[2],@x[0],$key
+ lvx @D[0],@x[4],$key
+
+ lvx @K[3],0,$ctr # load counter
+ ?lvsr $T1,0,$ctr # prepare unaligned load
+ lvx @D[1],@x[5],$ctr
+
+ lvx @K[0],0,r12 # load constants
+ lvx @K[5],@x[0],r12 # one
+ lvx $FOUR,@x[1],r12
+ lvx $sixteen,@x[2],r12
+ lvx $twenty4,@x[3],r12
+
+ ?vperm @K[1],@K[2],@K[1],$T0 # align key
+ ?vperm @K[2],@D[0],@K[2],$T0
+ ?vperm @K[3],@D[1],@K[3],$T1 # align counter
+
+ lwz @d[0],0($ctr) # load counter to GPR
+ lwz @d[1],4($ctr)
+ vadduwm @K[3],@K[3],@K[5] # adjust AltiVec counter
+ lwz @d[2],8($ctr)
+ vadduwm @K[4],@K[3],@K[5]
+ lwz @d[3],12($ctr)
+ vadduwm @K[5],@K[4],@K[5]
+
+ vspltisw $twenty,-12 # synthesize constants
+ vspltisw $twelve,12
+ vspltisw $twenty5,-7
+ #vspltisw $seven,7 # synthesized in the loop
+
+ vxor $T0,$T0,$T0 # 0x00..00
+ vspltisw $outmask,-1 # 0xff..ff
+ ?lvsr $inpperm,0,$inp # prepare for unaligned load
+ ?lvsl $outperm,0,$out # prepare for unaligned store
+ ?vperm $outmask,$outmask,$T0,$outperm
+
+ be?vspltisb $T1,3 # 0x03..03
+ be?vxor $inpperm,$inpperm,$T1 # swap bytes within words
+ be?vxor $outperm,$outperm,$T1
+
+ b Loop_outer_vmx
+
+.align 4
+Loop_outer_vmx:
+ lis @x[0],0x6170 # synthesize sigma
+ lis @x[1],0x3320
+ vmr $A0,@K[0]
+ lis @x[2],0x7962
+ lis @x[3],0x6b20
+ vmr $A1,@K[0]
+ ori @x[0],@x[0],0x7865
+ ori @x[1],@x[1],0x646e
+ vmr $A2,@K[0]
+ ori @x[2],@x[2],0x2d32
+ ori @x[3],@x[3],0x6574
+ vmr $B0,@K[1]
+
+ li r0,10 # inner loop counter
+ lwz @x[4],0($key) # load key to GPR
+ vmr $B1,@K[1]
+ lwz @x[5],4($key)
+ vmr $B2,@K[1]
+ lwz @x[6],8($key)
+ vmr $C0,@K[2]
+ lwz @x[7],12($key)
+ vmr $C1,@K[2]
+ lwz @x[8],16($key)
+ vmr $C2,@K[2]
+ mr @x[12],@d[0] # copy GPR counter
+ lwz @x[9],20($key)
+ vmr $D0,@K[3]
+ mr @x[13],@d[1]
+ lwz @x[10],24($key)
+ vmr $D1,@K[4]
+ mr @x[14],@d[2]
+ lwz @x[11],28($key)
+ vmr $D2,@K[5]
+ mr @x[15],@d[3]
+
+ mr @t[0],@x[4]
+ mr @t[1],@x[5]
+ mr @t[2],@x[6]
+ mr @t[3],@x[7]
+ vspltisw $seven,7
+
+ mtctr r0
+ nop
+Loop_vmx:
+___
+ my @thread0=&VMXROUND($A0,$B0,$C0,$D0,$T0,0);
+ my @thread1=&VMXROUND($A1,$B1,$C1,$D1,$T1,0);
+ my @thread2=&VMXROUND($A2,$B2,$C2,$D2,$T2,0);
+ my @thread3=&ROUND(0,4,8,12);
+
+ foreach (@thread0) {
+ eval; eval(shift(@thread3));
+ eval(shift(@thread1)); eval(shift(@thread3));
+ eval(shift(@thread2)); eval(shift(@thread3));
+ }
+
+ @thread0=&VMXROUND($A0,$B0,$C0,$D0,$T0,1);
+ @thread1=&VMXROUND($A1,$B1,$C1,$D1,$T1,1);
+ @thread2=&VMXROUND($A2,$B2,$C2,$D2,$T2,1);
+ @thread3=&ROUND(0,5,10,15);
+
+ foreach (@thread0) {
+ eval; eval(shift(@thread3));
+ eval(shift(@thread1)); eval(shift(@thread3));
+ eval(shift(@thread2)); eval(shift(@thread3));
+ }
+$code.=<<___;
+ bdnz Loop_vmx
+
+ subi $len,$len,256 # $len-=256
+ addi @x[0],@x[0],0x7865 # accumulate key block
+ addi @x[1],@x[1],0x646e
+ addi @x[2],@x[2],0x2d32
+ addi @x[3],@x[3],0x6574
+ addis @x[0],@x[0],0x6170
+ addis @x[1],@x[1],0x3320
+ addis @x[2],@x[2],0x7962
+ addis @x[3],@x[3],0x6b20
+ add @x[4],@x[4],@t[0]
+ lwz @t[0],16($key)
+ add @x[5],@x[5],@t[1]
+ lwz @t[1],20($key)
+ add @x[6],@x[6],@t[2]
+ lwz @t[2],24($key)
+ add @x[7],@x[7],@t[3]
+ lwz @t[3],28($key)
+ add @x[8],@x[8],@t[0]
+ add @x[9],@x[9],@t[1]
+ add @x[10],@x[10],@t[2]
+ add @x[11],@x[11],@t[3]
+ add @x[12],@x[12],@d[0]
+ add @x[13],@x[13],@d[1]
+ add @x[14],@x[14],@d[2]
+ add @x[15],@x[15],@d[3]
+
+ vadduwm $A0,$A0,@K[0] # accumulate key block
+ vadduwm $A1,$A1,@K[0]
+ vadduwm $A2,$A2,@K[0]
+ vadduwm $B0,$B0,@K[1]
+ vadduwm $B1,$B1,@K[1]
+ vadduwm $B2,$B2,@K[1]
+ vadduwm $C0,$C0,@K[2]
+ vadduwm $C1,$C1,@K[2]
+ vadduwm $C2,$C2,@K[2]
+ vadduwm $D0,$D0,@K[3]
+ vadduwm $D1,$D1,@K[4]
+ vadduwm $D2,$D2,@K[5]
+
+ addi @d[0],@d[0],4 # increment counter
+ vadduwm @K[3],@K[3],$FOUR
+ vadduwm @K[4],@K[4],$FOUR
+ vadduwm @K[5],@K[5],$FOUR
+
+___
+if (!$LITTLE_ENDIAN) { for($i=0;$i<16;$i++) { # flip byte order
+$code.=<<___;
+ mr @t[$i&3],@x[$i]
+ rotlwi @x[$i],@x[$i],8
+ rlwimi @x[$i],@t[$i&3],24,0,7
+ rlwimi @x[$i],@t[$i&3],24,16,23
+___
+} }
+$code.=<<___;
+ lwz @t[0],0($inp) # load input, aligned or not
+ lwz @t[1],4($inp)
+ lwz @t[2],8($inp)
+ lwz @t[3],12($inp)
+ xor @x[0],@x[0],@t[0] # xor with input
+ lwz @t[0],16($inp)
+ xor @x[1],@x[1],@t[1]
+ lwz @t[1],20($inp)
+ xor @x[2],@x[2],@t[2]
+ lwz @t[2],24($inp)
+ xor @x[3],@x[3],@t[3]
+ lwz @t[3],28($inp)
+ xor @x[4],@x[4],@t[0]
+ lwz @t[0],32($inp)
+ xor @x[5],@x[5],@t[1]
+ lwz @t[1],36($inp)
+ xor @x[6],@x[6],@t[2]
+ lwz @t[2],40($inp)
+ xor @x[7],@x[7],@t[3]
+ lwz @t[3],44($inp)
+ xor @x[8],@x[8],@t[0]
+ lwz @t[0],48($inp)
+ xor @x[9],@x[9],@t[1]
+ lwz @t[1],52($inp)
+ xor @x[10],@x[10],@t[2]
+ lwz @t[2],56($inp)
+ xor @x[11],@x[11],@t[3]
+ lwz @t[3],60($inp)
+ xor @x[12],@x[12],@t[0]
+ stw @x[0],0($out) # store output, aligned or not
+ xor @x[13],@x[13],@t[1]
+ stw @x[1],4($out)
+ xor @x[14],@x[14],@t[2]
+ stw @x[2],8($out)
+ xor @x[15],@x[15],@t[3]
+ stw @x[3],12($out)
+ addi $inp,$inp,64
+ stw @x[4],16($out)
+ li @t[0],16
+ stw @x[5],20($out)
+ li @t[1],32
+ stw @x[6],24($out)
+ li @t[2],48
+ stw @x[7],28($out)
+ li @t[3],64
+ stw @x[8],32($out)
+ stw @x[9],36($out)
+ stw @x[10],40($out)
+ stw @x[11],44($out)
+ stw @x[12],48($out)
+ stw @x[13],52($out)
+ stw @x[14],56($out)
+ stw @x[15],60($out)
+ addi $out,$out,64
+
+ lvx @D[0],0,$inp # load input
+ lvx @D[1],@t[0],$inp
+ lvx @D[2],@t[1],$inp
+ lvx @D[3],@t[2],$inp
+ lvx @D[4],@t[3],$inp
+ addi $inp,$inp,64
+
+ ?vperm @D[0],@D[1],@D[0],$inpperm # align input
+ ?vperm @D[1],@D[2],@D[1],$inpperm
+ ?vperm @D[2],@D[3],@D[2],$inpperm
+ ?vperm @D[3],@D[4],@D[3],$inpperm
+ vxor $A0,$A0,@D[0] # xor with input
+ vxor $B0,$B0,@D[1]
+ lvx @D[1],@t[0],$inp # keep loading input
+ vxor $C0,$C0,@D[2]
+ lvx @D[2],@t[1],$inp
+ vxor $D0,$D0,@D[3]
+ lvx @D[3],@t[2],$inp
+ lvx @D[0],@t[3],$inp
+ addi $inp,$inp,64
+ li @t[3],63 # 63 is not a typo
+ vperm $A0,$A0,$A0,$outperm # pre-misalign output
+ vperm $B0,$B0,$B0,$outperm
+ vperm $C0,$C0,$C0,$outperm
+ vperm $D0,$D0,$D0,$outperm
+
+ ?vperm @D[4],@D[1],@D[4],$inpperm # align input
+ ?vperm @D[1],@D[2],@D[1],$inpperm
+ ?vperm @D[2],@D[3],@D[2],$inpperm
+ ?vperm @D[3],@D[0],@D[3],$inpperm
+ vxor $A1,$A1,@D[4]
+ vxor $B1,$B1,@D[1]
+ lvx @D[1],@t[0],$inp # keep loading input
+ vxor $C1,$C1,@D[2]
+ lvx @D[2],@t[1],$inp
+ vxor $D1,$D1,@D[3]
+ lvx @D[3],@t[2],$inp
+ lvx @D[4],@t[3],$inp # redundant in aligned case
+ addi $inp,$inp,64
+ vperm $A1,$A1,$A1,$outperm # pre-misalign output
+ vperm $B1,$B1,$B1,$outperm
+ vperm $C1,$C1,$C1,$outperm
+ vperm $D1,$D1,$D1,$outperm
+
+ ?vperm @D[0],@D[1],@D[0],$inpperm # align input
+ ?vperm @D[1],@D[2],@D[1],$inpperm
+ ?vperm @D[2],@D[3],@D[2],$inpperm
+ ?vperm @D[3],@D[4],@D[3],$inpperm
+ vxor $A2,$A2,@D[0]
+ vxor $B2,$B2,@D[1]
+ vxor $C2,$C2,@D[2]
+ vxor $D2,$D2,@D[3]
+ vperm $A2,$A2,$A2,$outperm # pre-misalign output
+ vperm $B2,$B2,$B2,$outperm
+ vperm $C2,$C2,$C2,$outperm
+ vperm $D2,$D2,$D2,$outperm
+
+ andi. @x[1],$out,15 # is $out aligned?
+ mr @x[0],$out
+
+ vsel @D[0],$A0,$B0,$outmask # collect pre-misaligned output
+ vsel @D[1],$B0,$C0,$outmask
+ vsel @D[2],$C0,$D0,$outmask
+ vsel @D[3],$D0,$A1,$outmask
+ vsel $B0,$A1,$B1,$outmask
+ vsel $C0,$B1,$C1,$outmask
+ vsel $D0,$C1,$D1,$outmask
+ vsel $A1,$D1,$A2,$outmask
+ vsel $B1,$A2,$B2,$outmask
+ vsel $C1,$B2,$C2,$outmask
+ vsel $D1,$C2,$D2,$outmask
+
+ #stvx $A0,0,$out # take it easy on the edges
+ stvx @D[0],@t[0],$out # store output
+ stvx @D[1],@t[1],$out
+ stvx @D[2],@t[2],$out
+ addi $out,$out,64
+ stvx @D[3],0,$out
+ stvx $B0,@t[0],$out
+ stvx $C0,@t[1],$out
+ stvx $D0,@t[2],$out
+ addi $out,$out,64
+ stvx $A1,0,$out
+ stvx $B1,@t[0],$out
+ stvx $C1,@t[1],$out
+ stvx $D1,@t[2],$out
+ addi $out,$out,64
+
+ beq Laligned_vmx
+
+ sub @x[2],$out,@x[1] # in misaligned case edges
+ li @x[3],0 # are written byte-by-byte
+Lunaligned_tail_vmx:
+ stvebx $D2,@x[3],@x[2]
+ addi @x[3],@x[3],1
+ cmpw @x[3],@x[1]
+ bne Lunaligned_tail_vmx
+
+ sub @x[2],@x[0],@x[1]
+Lunaligned_head_vmx:
+ stvebx $A0,@x[1],@x[2]
+ cmpwi @x[1],15
+ addi @x[1],@x[1],1
+ bne Lunaligned_head_vmx
+
+ ${UCMP}i $len,255 # done with 256-byte blocks yet?
+ bgt Loop_outer_vmx
+
+ b Ldone_vmx
+
+.align 4
+Laligned_vmx:
+ stvx $A0,0,@x[0] # head hexaword was not stored
+
+ ${UCMP}i $len,255 # done with 256-byte blocks yet?
+ bgt Loop_outer_vmx
+ nop
+
+Ldone_vmx:
+ ${UCMP}i $len,0 # done yet?
+ bnel __ChaCha20_1x
+
+ lwz r12,`$FRAME-$SIZE_T*18-4`($sp) # pull vrsave
+ li r10,`15+$LOCALS+64`
+ li r11,`31+$LOCALS+64`
+ mtspr 256,r12 # restore vrsave
+ lvx v20,r10,$sp
+ addi r10,r10,32
+ lvx v21,r11,$sp
+ addi r11,r11,32
+ lvx v22,r10,$sp
+ addi r10,r10,32
+ lvx v23,r11,$sp
+ addi r11,r11,32
+ lvx v24,r10,$sp
+ addi r10,r10,32
+ lvx v25,r11,$sp
+ addi r11,r11,32
+ lvx v26,r10,$sp
+ addi r10,r10,32
+ lvx v27,r11,$sp
+ addi r11,r11,32
+ lvx v28,r10,$sp
+ addi r10,r10,32
+ lvx v29,r11,$sp
+ addi r11,r11,32
+ lvx v30,r10,$sp
+ lvx v31,r11,$sp
+ $POP r0, `$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,$FRAME
+ blr
+ .long 0
+ .byte 0,12,0x04,1,0x80,18,5,0
+ .long 0
+.size .ChaCha20_ctr32_vmx,.-.ChaCha20_ctr32_vmx
+
+.align 5
+Lconsts:
+ mflr r0
+ bcl 20,31,\$+4
+ mflr r12 #vvvvv "distance between . and _vpaes_consts
+ addi r12,r12,`64-8`
+ mtlr r0
+ blr
+ .long 0
+ .byte 0,12,0x14,0,0,0,0,0
+ .space `64-9*4`
+Lsigma:
+ .long 0x61707865,0x3320646e,0x79622d32,0x6b206574
+ .long 1,0,0,0
+ .long 4,0,0,0
+___
+$code.=<<___ if ($LITTLE_ENDIAN);
+ .long 0x0e0f0c0d,0x0a0b0809,0x06070405,0x02030001
+ .long 0x0d0e0f0c,0x090a0b08,0x05060704,0x01020300
+___
+$code.=<<___ if (!$LITTLE_ENDIAN); # flipped words
+ .long 0x02030001,0x06070405,0x0a0b0809,0x0e0f0c0d
+ .long 0x01020300,0x05060704,0x090a0b08,0x0d0e0f0c
+___
+$code.=<<___;
+.asciz "ChaCha20 for PowerPC/AltiVec, CRYPTOGAMS by <appro\@openssl.org>"
+.align 2
+___
+}}}
+
+foreach (split("\n",$code)) {
+ s/\`([^\`]*)\`/eval $1/ge;
+
+ # instructions prefixed with '?' are endian-specific and need
+ # to be adjusted accordingly...
+ if ($flavour !~ /le$/) { # big-endian
+ s/be\?// or
+ s/le\?/#le#/ or
+ s/\?lvsr/lvsl/ or
+ s/\?lvsl/lvsr/ or
+ s/\?(vperm\s+v[0-9]+,\s*)(v[0-9]+,\s*)(v[0-9]+,\s*)(v[0-9]+)/$1$3$2$4/ or
+ s/(vsldoi\s+v[0-9]+,\s*)(v[0-9]+,)\s*(v[0-9]+,\s*)([0-9]+)/$1$3$2 16-$4/;
+ } else { # little-endian
+ s/le\?// or
+ s/be\?/#be#/ or
+ s/\?([a-z]+)/$1/;
+ }
+
+ print $_,"\n";
+}
+
+close STDOUT;
$(PERL) {- $sourcedir -}/asm/chacha-x86.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@
{- $builddir -}/chacha-x86_64.s: {- $sourcedir -}/asm/chacha-x86_64.pl
$(PERL) {- $sourcedir -}/asm/chacha-x86_64.pl $(PERLASM_SCHEME) > $@
+{- $builddir -}/chacha-ppc.s: {- $sourcedir -}/asm/chacha-ppc.pl
+ $(PERL) {- $sourcedir -}/asm/chacha-ppc.pl $(PERLASM_SCHEME) $@
{- $builddir -}/chacha-%.S: {- $sourcedir -}/asm/chacha-%.pl
$(PERL) $< $(PERLASM_SCHEME) $@
$(PERL) asm/poly1305-x86.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@
poly1305-x86_64.s: asm/poly1305-x86_64.pl
$(PERL) asm/poly1305-x86_64.pl $(PERLASM_SCHEME) > $@
+poly1305-ppc.s: asm/poly1305-ppc.pl
+ $(PERL) asm/poly1305-ppc.pl $(PERLASM_SCHEME) $@
+poly1305-ppcfp.s: asm/poly1305-ppcfp.pl
+ $(PERL) asm/poly1305-ppcfp.pl $(PERLASM_SCHEME) $@
poly1305-%.S: asm/poly1305-%.pl; $(PERL) $< $(PERLASM_SCHEME) $@
--- /dev/null
+#!/usr/bin/env perl
+#
+# ====================================================================
+# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+# ====================================================================
+#
+# This module implements Poly1305 hash for PowerPC.
+#
+# June 2015
+#
+# Numbers are cycles per processed byte with poly1305_blocks alone,
+# and improvement coefficients relative to gcc-generated code.
+#
+# -m32 -m64
+#
+# Freescale e300 14.8/+80% -
+# PPC74x0 7.40/+60% -
+# PPC970 7.20/+114% 3.51/+205%
+# POWER6 3.96/+250% 2.02/+170%
+# POWER7 3.67/+260% 1.87/+100%
+# POWER8 - 2.13/+200%
+#
+# Do we need floating-point implementation for PPC? Results presented
+# in poly1305_ieee754.c are tricky to compare to, because they are for
+# compiler-generated code. On the other hand it's known that floating-
+# point performance can be dominated by FPU latency, which means that
+# there is limit even for ideally optimized (and even vectorized) code.
+# And this limit is estimated to be higher than above -m64 results. Or
+# in other words floating-point implementation can be meaningful to
+# consider only in 32-bit application context. We probably have to
+# recognize that 32-bit builds are getting less popular on high-end
+# systems and therefore tend to target embedded ones, which might not
+# even have FPU...
+#
+# On side note, Power ISA 2.07 enables vector base 2^26 implementation,
+# and POWER8 might have capacity to break 1.0 cycle per byte barrier...
+
+$flavour = shift;
+
+if ($flavour =~ /64/) {
+ $SIZE_T =8;
+ $LRSAVE =2*$SIZE_T;
+ $UCMP ="cmpld";
+ $STU ="stdu";
+ $POP ="ld";
+ $PUSH ="std";
+} elsif ($flavour =~ /32/) {
+ $SIZE_T =4;
+ $LRSAVE =$SIZE_T;
+ $UCMP ="cmplw";
+ $STU ="stwu";
+ $POP ="lwz";
+ $PUSH ="stw";
+} else { die "nonsense $flavour"; }
+
+# Define endianess based on flavour
+# i.e.: linux64le
+$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 ".shift || die "can't call $xlate: $!";
+
+$FRAME=24*$SIZE_T;
+
+$sp="r1";
+my ($ctx,$inp,$len,$padbit) = map("r$_",(3..6));
+my ($mac,$nonce)=($inp,$len);
+my $mask = "r0";
+
+$code=<<___;
+.machine "any"
+.text
+___
+ if ($flavour =~ /64/) {
+###############################################################################
+# base 2^64 implementation
+
+my ($h0,$h1,$h2,$d0,$d1,$d2, $r0,$r1,$s1, $t0,$t1) = map("r$_",(7..12,27..31));
+
+$code.=<<___;
+.globl .poly1305_init_int
+.align 4
+.poly1305_init_int:
+ xor r0,r0,r0
+ std r0,0($ctx) # zero hash value
+ std r0,8($ctx)
+ std r0,16($ctx)
+
+ $UCMP $inp,r0
+ beq- Lno_key
+___
+$code.=<<___ if ($LITTLE_ENDIAN);
+ ld $d0,0($inp) # load key material
+ ld $d1,8($inp)
+___
+$code.=<<___ if (!$LITTLE_ENDIAN);
+ li $h0,4
+ lwbrx $d0,0,$inp # load key material
+ li $d1,8
+ lwbrx $h0,$h0,$inp
+ li $h1,12
+ lwbrx $d1,$d1,$inp
+ lwbrx $h1,$h1,$inp
+ insrdi $d0,$h0,32,0
+ insrdi $d1,$h1,32,0
+___
+$code.=<<___;
+ lis $h1,0xfff # 0x0fff0000
+ ori $h1,$h1,0xfffc # 0x0ffffffc
+ insrdi $h1,$h1,32,0 # 0x0ffffffc0ffffffc
+ ori $h0,$h1,3 # 0x0ffffffc0fffffff
+
+ and $d0,$d0,$h0
+ and $d1,$d1,$h1
+
+ std $d0,32($ctx) # store key
+ std $d1,40($ctx)
+
+Lno_key:
+ xor r3,r3,r3
+ blr
+ .long 0
+ .byte 0,12,0x14,0,0,0,2,0
+.size .poly1305_init_int,.-.poly1305_init_int
+
+.globl .poly1305_blocks
+.align 4
+.poly1305_blocks:
+ srdi. $len,$len,4
+ beq- Labort
+
+ $STU $sp,-$FRAME($sp)
+ mflr r0
+ $PUSH r27,`$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)
+
+ ld $r0,32($ctx) # load key
+ ld $r1,40($ctx)
+
+ ld $h0,0($ctx) # load hash value
+ ld $h1,8($ctx)
+ ld $h2,16($ctx)
+
+ srdi $s1,$r1,2
+ mtctr $len
+ add $s1,$s1,$r1 # s1 = r1 + r1>>2
+ li $mask,3
+ b Loop
+
+.align 4
+Loop:
+___
+$code.=<<___ if ($LITTLE_ENDIAN);
+ ld $t0,0($inp) # load input
+ ld $t1,8($inp)
+___
+$code.=<<___ if (!$LITTLE_ENDIAN);
+ li $d0,4
+ lwbrx $t0,0,$inp # load input
+ li $t1,8
+ lwbrx $d0,$d0,$inp
+ li $d1,12
+ lwbrx $t1,$t1,$inp
+ lwbrx $d1,$d1,$inp
+ insrdi $t0,$d0,32,0
+ insrdi $t1,$d1,32,0
+___
+$code.=<<___;
+ addi $inp,$inp,16
+
+ addc $h0,$h0,$t0 # accumulate input
+ adde $h1,$h1,$t1
+
+ mulld $d0,$h0,$r0 # h0*r0
+ mulhdu $d1,$h0,$r0
+ adde $h2,$h2,$padbit
+
+ mulld $t0,$h1,$s1 # h1*5*r1
+ mulhdu $t1,$h1,$s1
+ addc $d0,$d0,$t0
+ adde $d1,$d1,$t1
+
+ mulld $t0,$h0,$r1 # h0*r1
+ mulhdu $d2,$h0,$r1
+ addc $d1,$d1,$t0
+ addze $d2,$d2
+
+ mulld $t0,$h1,$r0 # h1*r0
+ mulhdu $t1,$h1,$r0
+ addc $d1,$d1,$t0
+ adde $d2,$d2,$t1
+
+ mulld $t0,$h2,$s1 # h2*5*r1
+ mulld $t1,$h2,$r0 # h2*r0
+ addc $d1,$d1,$t0
+ adde $d2,$d2,$t1
+
+ andc $t0,$d2,$mask # final reduction step
+ and $h2,$d2,$mask
+ srdi $t1,$t0,2
+ add $t0,$t0,$t1
+ addc $h0,$d0,$t0
+ addze $h1,$d1
+
+ bdnz Loop
+
+ std $h0,0($ctx) # store hash value
+ std $h1,8($ctx)
+ std $h2,16($ctx)
+
+ $POP r27,`$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)
+ addi $sp,$sp,$FRAME
+Labort:
+ blr
+ .long 0
+ .byte 0,12,4,1,0x80,5,4,0
+.size .poly1305_blocks,.-.poly1305_blocks
+
+.globl .poly1305_emit
+.align 4
+.poly1305_emit:
+ ld $h0,0($ctx) # load hash
+ ld $h1,8($ctx)
+ ld $h2,16($ctx)
+ ld $padbit,0($nonce) # load nonce
+ ld $nonce,8($nonce)
+
+ addic $d0,$h0,5 # compare to modulus
+ addze $d1,$h1
+ addze $d2,$h2
+
+ srdi $mask,$d2,2 # did it carry/borrow?
+ neg $mask,$mask
+
+ andc $h0,$h0,$mask
+ and $d0,$d0,$mask
+ andc $h1,$h1,$mask
+ and $d1,$d1,$mask
+ or $h0,$h0,$d0
+ or $h1,$h1,$d1
+___
+$code.=<<___ if (!$LITTLE_ENDIAN);
+ rotldi $padbit,$padbit,32 # flip nonce words
+ rotldi $nonce,$nonce,32
+___
+$code.=<<___;
+ addc $h0,$h0,$padbit # accumulate nonce
+ adde $h1,$h1,$nonce
+___
+$code.=<<___ if ($LITTLE_ENDIAN);
+ std $h0,0($mac) # write result
+ std $h1,8($mac)
+___
+$code.=<<___ if (!$LITTLE_ENDIAN);
+ extrdi r0,$h0,32,0
+ li $d0,4
+ stwbrx $h0,0,$mac # write result
+ extrdi $h0,$h1,32,0
+ li $d1,8
+ stwbrx r0,$d0,$mac
+ li $d2,12
+ stwbrx $h1,$d1,$mac
+ stwbrx $h0,$d2,$mac
+___
+$code.=<<___;
+ blr
+ .long 0
+ .byte 0,12,0x14,0,0,0,3,0
+.size .poly1305_emit,.-.poly1305_emit
+___
+ } else {
+###############################################################################
+# base 2^32 implementation
+
+my ($h0,$h1,$h2,$h3,$h4, $r0,$r1,$r2,$r3, $s1,$s2,$s3,
+ $t0,$t1,$t2,$t3, $D0,$D1,$D2,$D3, $d0,$d1,$d2,$d3
+ ) = map("r$_",(7..12,14..31));
+
+$code.=<<___;
+.globl .poly1305_init_int
+.align 4
+.poly1305_init_int:
+ xor r0,r0,r0
+ stw r0,0($ctx) # zero hash value
+ stw r0,4($ctx)
+ stw r0,8($ctx)
+ stw r0,12($ctx)
+ stw r0,16($ctx)
+
+ $UCMP $inp,r0
+ beq- Lno_key
+___
+$code.=<<___ if ($LITTLE_ENDIAN);
+ lw $h0,0($inp) # load key material
+ lw $h1,4($inp)
+ lw $h2,8($inp)
+ lw $h3,12($inp)
+___
+$code.=<<___ if (!$LITTLE_ENDIAN);
+ li $h1,4
+ lwbrx $h0,0,$inp # load key material
+ li $h2,8
+ lwbrx $h1,$h1,$inp
+ li $h3,12
+ lwbrx $h2,$h2,$inp
+ lwbrx $h3,$h3,$inp
+___
+$code.=<<___;
+ lis $mask,0xf000 # 0xf0000000
+ li $r0,-4
+ andc $r0,$r0,$mask # 0x0ffffffc
+
+ andc $h0,$h0,$mask
+ and $h1,$h1,$r0
+ and $h2,$h2,$r0
+ and $h3,$h3,$r0
+
+ stw $h0,32($ctx) # store key
+ stw $h1,36($ctx)
+ stw $h2,40($ctx)
+ stw $h3,44($ctx)
+
+Lno_key:
+ xor r3,r3,r3
+ blr
+ .long 0
+ .byte 0,12,0x14,0,0,0,2,0
+.size .poly1305_init_int,.-.poly1305_init_int
+
+.globl .poly1305_blocks
+.align 4
+.poly1305_blocks:
+ srwi. $len,$len,4
+ beq- Labort
+
+ $STU $sp,-$FRAME($sp)
+ mflr r0
+ $PUSH r14,`$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)
+
+ lwz $r0,32($ctx) # load key
+ lwz $r1,36($ctx)
+ lwz $r2,40($ctx)
+ lwz $r3,44($ctx)
+
+ lwz $h0,0($ctx) # load hash value
+ lwz $h1,4($ctx)
+ lwz $h2,8($ctx)
+ lwz $h3,12($ctx)
+ lwz $h4,16($ctx)
+
+ srwi $s1,$r1,2
+ srwi $s2,$r2,2
+ srwi $s3,$r3,2
+ add $s1,$s1,$r1 # si = ri + ri>>2
+ add $s2,$s2,$r2
+ add $s3,$s3,$r3
+ mtctr $len
+ li $mask,3
+ b Loop
+
+.align 4
+Loop:
+___
+$code.=<<___ if ($LITTLE_ENDIAN);
+ lwz $d0,0($inp) # load input
+ lwz $d1,4($inp)
+ lwz $d2,8($inp)
+ lwz $d3,12($inp)
+___
+$code.=<<___ if (!$LITTLE_ENDIAN);
+ li $d1,4
+ lwbrx $d0,0,$inp # load input
+ li $d2,8
+ lwbrx $d1,$d1,$inp
+ li $d3,12
+ lwbrx $d2,$d2,$inp
+ lwbrx $d3,$d3,$inp
+___
+$code.=<<___;
+ addi $inp,$inp,16
+
+ addc $h0,$h0,$d0 # accumulate input
+ adde $h1,$h1,$d1
+ adde $h2,$h2,$d2
+
+ mullw $d0,$h0,$r0 # h0*r0
+ mulhwu $D0,$h0,$r0
+
+ mullw $d1,$h0,$r1 # h0*r1
+ mulhwu $D1,$h0,$r1
+
+ mullw $d2,$h0,$r2 # h0*r2
+ mulhwu $D2,$h0,$r2
+
+ adde $h3,$h3,$d3
+ adde $h4,$h4,$padbit
+
+ mullw $d3,$h0,$r3 # h0*r3
+ mulhwu $D3,$h0,$r3
+
+ mullw $t0,$h1,$s3 # h1*s3
+ mulhwu $t1,$h1,$s3
+
+ mullw $t2,$h1,$r0 # h1*r0
+ mulhwu $t3,$h1,$r0
+ addc $d0,$d0,$t0
+ adde $D0,$D0,$t1
+
+ mullw $t0,$h1,$r1 # h1*r1
+ mulhwu $t1,$h1,$r1
+ addc $d1,$d1,$t2
+ adde $D1,$D1,$t3
+
+ mullw $t2,$h1,$r2 # h1*r2
+ mulhwu $t3,$h1,$r2
+ addc $d2,$d2,$t0
+ adde $D2,$D2,$t1
+
+ mullw $t0,$h2,$s2 # h2*s2
+ mulhwu $t1,$h2,$s2
+ addc $d3,$d3,$t2
+ adde $D3,$D3,$t3
+
+ mullw $t2,$h2,$s3 # h2*s3
+ mulhwu $t3,$h2,$s3
+ addc $d0,$d0,$t0
+ adde $D0,$D0,$t1
+
+ mullw $t0,$h2,$r0 # h2*r0
+ mulhwu $t1,$h2,$r0
+ addc $d1,$d1,$t2
+ adde $D1,$D1,$t3
+
+ mullw $t2,$h2,$r1 # h2*r1
+ mulhwu $t3,$h2,$r1
+ addc $d2,$d2,$t0
+ adde $D2,$D2,$t1
+
+ mullw $t0,$h3,$s1 # h3*s1
+ mulhwu $t1,$h3,$s1
+ addc $d3,$d3,$t2
+ adde $D3,$D3,$t3
+
+ mullw $t2,$h3,$s2 # h3*s2
+ mulhwu $t3,$h3,$s2
+ addc $d0,$d0,$t0
+ adde $D0,$D0,$t1
+
+ mullw $t0,$h3,$s3 # h3*s3
+ mulhwu $t1,$h3,$s3
+ addc $d1,$d1,$t2
+ adde $D1,$D1,$t3
+
+ mullw $t2,$h3,$r0 # h3*r0
+ mulhwu $t3,$h3,$r0
+ addc $d2,$d2,$t0
+ adde $D2,$D2,$t1
+
+ mullw $t0,$h4,$s1 # h4*s1
+ addc $d3,$d3,$t2
+ adde $D3,$D3,$t3
+ addc $d1,$d1,$t0
+
+ mullw $t1,$h4,$s2 # h4*s2
+ addze $D1,$D1
+ addc $d2,$d2,$t1
+ addze $D2,$D2
+
+ mullw $t2,$h4,$s3 # h4*s3
+ addc $d3,$d3,$t2
+ addze $D3,$D3
+
+ mullw $h4,$h4,$r0 # h4*r0
+
+ addc $h1,$d1,$D0
+ adde $h2,$d2,$D1
+ adde $h3,$d3,$D2
+ adde $h4,$h4,$D3
+
+ andc $D0,$h4,$mask # final reduction step
+ and $h4,$h4,$mask
+ srwi $D1,$D0,2
+ add $D0,$D0,$D1
+ addc $h0,$d0,$D0
+ addze $h1,$h1
+ addze $h2,$h2
+ addze $h3,$h3
+
+ bdnz Loop
+
+ stw $h0,0($ctx) # store hash value
+ stw $h1,4($ctx)
+ stw $h2,8($ctx)
+ stw $h3,12($ctx)
+ stw $h4,16($ctx)
+
+ $POP r14,`$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)
+ addi $sp,$sp,$FRAME
+Labort:
+ blr
+ .long 0
+ .byte 0,12,4,1,0x80,18,4,0
+.size .poly1305_blocks,.-.poly1305_blocks
+
+.globl .poly1305_emit
+.align 4
+.poly1305_emit:
+ $STU $sp,-$FRAME($sp)
+ mflr r0
+ $PUSH r28,`$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)
+
+ lwz $h0,0($ctx) # load hash
+ lwz $h1,4($ctx)
+ lwz $h2,8($ctx)
+ lwz $h3,12($ctx)
+ lwz $h4,16($ctx)
+
+ addic $d0,$h0,5 # compare to modulus
+ addze $d1,$h1
+ addze $d2,$h2
+ addze $d3,$h3
+ addze $mask,$h4
+
+ srwi $mask,$mask,2 # did it carry/borrow?
+ neg $mask,$mask
+
+ andc $h0,$h0,$mask
+ and $d0,$d0,$mask
+ andc $h1,$h1,$mask
+ and $d1,$d1,$mask
+ or $h0,$h0,$d0
+ lwz $d0,0($nonce) # load nonce
+ andc $h2,$h2,$mask
+ and $d2,$d2,$mask
+ or $h1,$h1,$d1
+ lwz $d1,4($nonce)
+ andc $h3,$h3,$mask
+ and $d3,$d3,$mask
+ or $h2,$h2,$d2
+ lwz $d2,8($nonce)
+ or $h3,$h3,$d3
+ lwz $d3,12($nonce)
+
+ addc $h0,$h0,$d0 # accumulate nonce
+ adde $h1,$h1,$d1
+ adde $h2,$h2,$d2
+ adde $h3,$h3,$d3
+___
+$code.=<<___ if ($LITTLE_ENDIAN);
+ stw $h0,0($mac) # write result
+ stw $h1,4($mac)
+ stw $h2,8($mac)
+ stw $h3,12($mac)
+___
+$code.=<<___ if (!$LITTLE_ENDIAN);
+ li $d1,4
+ stwbrx $h0,0,$mac # write result
+ li $d2,8
+ stwbrx $h1,$d1,$mac
+ li $d3,12
+ stwbrx $h2,$d2,$mac
+ stwbrx $h3,$d3,$mac
+___
+$code.=<<___;
+ $POP r28,`$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)
+ addi $sp,$sp,$FRAME
+ blr
+ .long 0
+ .byte 0,12,4,1,0x80,4,3,0
+.size .poly1305_emit,.-.poly1305_emit
+___
+ }
+$code.=<<___;
+.asciz "Poly1305 for PPC, CRYPTOGAMS by <appro\@openssl.org>"
+___
+
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
+print $code;
+close STDOUT;
--- /dev/null
+#!/usr/bin/env perl
+#
+# ====================================================================
+# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+# ====================================================================
+#
+# This module implements Poly1305 hash for PowerPC FPU.
+#
+# June 2015
+#
+# Numbers are cycles per processed byte with poly1305_blocks alone,
+# and improvement coefficients relative to gcc-generated code.
+#
+# Freescale e300 9.78/+30%
+# PPC74x0 7.08/+50%
+# PPC970 6.24/+80%
+# POWER7 3.50/+30%
+# POWER8 3.75/+10%
+
+$flavour = shift;
+
+if ($flavour =~ /64/) {
+ $SIZE_T =8;
+ $LRSAVE =2*$SIZE_T;
+ $UCMP ="cmpld";
+ $STU ="stdu";
+ $POP ="ld";
+ $PUSH ="std";
+} elsif ($flavour =~ /32/) {
+ $SIZE_T =4;
+ $LRSAVE =$SIZE_T;
+ $UCMP ="cmplw";
+ $STU ="stwu";
+ $POP ="lwz";
+ $PUSH ="stw";
+} else { die "nonsense $flavour"; }
+
+$LITTLE_ENDIAN = ($flavour=~/le$/) ? 4 : 0;
+
+$LWXLE = $LITTLE_ENDIAN ? "lwzx" : "lwbrx";
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $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 ".shift || die "can't call $xlate: $!";
+
+$LOCALS=6*$SIZE_T;
+$FRAME=$LOCALS+6*8+18*8;
+
+my $sp="r1";
+
+my ($ctx,$inp,$len,$padbit) = map("r$_",(3..6));
+my ($in0,$in1,$in2,$in3,$i1,$i2,$i3) = map("r$_",(7..12,6));
+
+my ($h0lo,$h0hi,$h1lo,$h1hi,$h2lo,$h2hi,$h3lo,$h3hi,
+ $two0,$two32,$two64,$two96,$two130,$five_two130,
+ $r0lo,$r0hi,$r1lo,$r1hi,$r2lo,$r2hi,
+ $s2lo,$s2hi,$s3lo,$s3hi,
+ $c0lo,$c0hi,$c1lo,$c1hi,$c2lo,$c2hi,$c3lo,$c3hi) = map("f$_",(0..31));
+# borrowings
+my ($r3lo,$r3hi,$s1lo,$s1hi) = ($c0lo,$c0hi,$c1lo,$c1hi);
+my ($x0,$x1,$x2,$x3) = ($c2lo,$c2hi,$c3lo,$c3hi);
+my ($y0,$y1,$y2,$y3) = ($c3lo,$c3hi,$c1lo,$c1hi);
+
+$code.=<<___;
+.machine "any"
+.text
+
+.globl .poly1305_init_fpu
+.align 6
+.poly1305_init_fpu:
+ $STU $sp,-$LOCALS($sp) # minimal frame
+ mflr $padbit
+ $PUSH $padbit,`$LOCALS+$LRSAVE`($sp)
+
+ bl LPICmeup
+
+ xor r0,r0,r0
+ mtlr $padbit # restore lr
+
+ lfd $two0,8*0($len) # load constants
+ lfd $two32,8*1($len)
+ lfd $two64,8*2($len)
+ lfd $two96,8*3($len)
+ lfd $two130,8*4($len)
+ lfd $five_two130,8*5($len)
+
+ stfd $two0,8*0($ctx) # initial hash value, biased 0
+ stfd $two32,8*1($ctx)
+ stfd $two64,8*2($ctx)
+ stfd $two96,8*3($ctx)
+
+ $UCMP $inp,r0
+ beq- Lno_key
+
+ lfd $h3lo,8*13($len) # new fpscr
+ mffs $h3hi # old fpscr
+
+ stfd $two0,8*4($ctx) # key "template"
+ stfd $two32,8*5($ctx)
+ stfd $two64,8*6($ctx)
+ stfd $two96,8*7($ctx)
+
+ li $in1,4
+ li $in2,8
+ li $in3,12
+ $LWXLE $in0,0,$inp # load key
+ $LWXLE $in1,$in1,$inp
+ $LWXLE $in2,$in2,$inp
+ $LWXLE $in3,$in3,$inp
+
+ lis $i1,0xf000 # 0xf0000000
+ ori $i2,$i1,3 # 0xf0000003
+ andc $in0,$in0,$i1 # &=0x0fffffff
+ andc $in1,$in1,$i2 # &=0x0ffffffc
+ andc $in2,$in2,$i2
+ andc $in3,$in3,$i2
+
+ stw $in0,`8*4+(4^$LITTLE_ENDIAN)`($ctx) # fill "template"
+ stw $in1,`8*5+(4^$LITTLE_ENDIAN)`($ctx)
+ stw $in2,`8*6+(4^$LITTLE_ENDIAN)`($ctx)
+ stw $in3,`8*7+(4^$LITTLE_ENDIAN)`($ctx)
+
+ mtfsf 255,$h3lo # fpscr
+ stfd $two0,8*18($ctx) # copy constants to context
+ stfd $two32,8*19($ctx)
+ stfd $two64,8*20($ctx)
+ stfd $two96,8*21($ctx)
+ stfd $two130,8*22($ctx)
+ stfd $five_two130,8*23($ctx)
+
+ lfd $h0lo,8*4($ctx) # load [biased] key
+ lfd $h1lo,8*5($ctx)
+ lfd $h2lo,8*6($ctx)
+ lfd $h3lo,8*7($ctx)
+
+ fsub $h0lo,$h0lo,$two0 # r0
+ fsub $h1lo,$h1lo,$two32 # r1
+ fsub $h2lo,$h2lo,$two64 # r2
+ fsub $h3lo,$h3lo,$two96 # r3
+
+ lfd $two0,8*6($len) # more constants
+ lfd $two32,8*7($len)
+ lfd $two64,8*8($len)
+ lfd $two96,8*9($len)
+
+ fmul $h1hi,$h1lo,$five_two130 # s1
+ fmul $h2hi,$h2lo,$five_two130 # s2
+ stfd $h3hi,8*15($ctx) # borrow slot for original fpscr
+ fmul $h3hi,$h3lo,$five_two130 # s3
+
+ fadd $h0hi,$h0lo,$two0
+ stfd $h1hi,8*12($ctx) # put aside for now
+ fadd $h1hi,$h1lo,$two32
+ stfd $h2hi,8*13($ctx)
+ fadd $h2hi,$h2lo,$two64
+ stfd $h3hi,8*14($ctx)
+ fadd $h3hi,$h3lo,$two96
+
+ fsub $h0hi,$h0hi,$two0
+ fsub $h1hi,$h1hi,$two32
+ fsub $h2hi,$h2hi,$two64
+ fsub $h3hi,$h3hi,$two96
+
+ lfd $two0,8*10($len) # more constants
+ lfd $two32,8*11($len)
+ lfd $two64,8*12($len)
+
+ fsub $h0lo,$h0lo,$h0hi
+ fsub $h1lo,$h1lo,$h1hi
+ fsub $h2lo,$h2lo,$h2hi
+ fsub $h3lo,$h3lo,$h3hi
+
+ stfd $h0hi,8*5($ctx) # r0hi
+ stfd $h1hi,8*7($ctx) # r1hi
+ stfd $h2hi,8*9($ctx) # r2hi
+ stfd $h3hi,8*11($ctx) # r3hi
+
+ stfd $h0lo,8*4($ctx) # r0lo
+ stfd $h1lo,8*6($ctx) # r1lo
+ stfd $h2lo,8*8($ctx) # r2lo
+ stfd $h3lo,8*10($ctx) # r3lo
+
+ lfd $h1lo,8*12($ctx) # s1
+ lfd $h2lo,8*13($ctx) # s2
+ lfd $h3lo,8*14($ctx) # s3
+ lfd $h0lo,8*15($ctx) # pull original fpscr
+
+ fadd $h1hi,$h1lo,$two0
+ fadd $h2hi,$h2lo,$two32
+ fadd $h3hi,$h3lo,$two64
+
+ fsub $h1hi,$h1hi,$two0
+ fsub $h2hi,$h2hi,$two32
+ fsub $h3hi,$h3hi,$two64
+
+ fsub $h1lo,$h1lo,$h1hi
+ fsub $h2lo,$h2lo,$h2hi
+ fsub $h3lo,$h3lo,$h3hi
+
+ stfd $h1hi,8*13($ctx) # s1hi
+ stfd $h2hi,8*15($ctx) # s2hi
+ stfd $h3hi,8*17($ctx) # s3hi
+
+ stfd $h1lo,8*12($ctx) # s1lo
+ stfd $h2lo,8*14($ctx) # s2lo
+ stfd $h3lo,8*16($ctx) # s3lo
+
+ mtfsf 255,$h0lo # restore fpscr
+Lno_key:
+ xor r3,r3,r3
+ addi $sp,$sp,$LOCALS
+ blr
+ .long 0
+ .byte 0,12,4,1,0x80,0,2,0
+.size .poly1305_init_fpu,.-.poly1305_init_fpu
+
+.globl .poly1305_blocks_fpu
+.align 4
+.poly1305_blocks_fpu:
+ srwi. $len,$len,4
+ beq- Labort
+
+ $STU $sp,-$FRAME($sp)
+ mflr r0
+ stfd f14,`$FRAME-8*18`($sp)
+ stfd f15,`$FRAME-8*17`($sp)
+ stfd f16,`$FRAME-8*16`($sp)
+ stfd f17,`$FRAME-8*15`($sp)
+ stfd f18,`$FRAME-8*14`($sp)
+ stfd f19,`$FRAME-8*13`($sp)
+ stfd f20,`$FRAME-8*12`($sp)
+ stfd f21,`$FRAME-8*11`($sp)
+ stfd f22,`$FRAME-8*10`($sp)
+ stfd f23,`$FRAME-8*9`($sp)
+ stfd f24,`$FRAME-8*8`($sp)
+ stfd f25,`$FRAME-8*7`($sp)
+ stfd f26,`$FRAME-8*6`($sp)
+ stfd f27,`$FRAME-8*5`($sp)
+ stfd f28,`$FRAME-8*4`($sp)
+ stfd f29,`$FRAME-8*3`($sp)
+ stfd f30,`$FRAME-8*2`($sp)
+ stfd f31,`$FRAME-8*1`($sp)
+ $PUSH r0,`$FRAME+$LRSAVE`($sp)
+
+ xor r0,r0,r0
+ li $in3,1
+ mtctr $len
+ neg $len,$len
+ stw r0,`$LOCALS+8*4+(0^$LITTLE_ENDIAN)`($sp)
+ stw $in3,`$LOCALS+8*4+(4^$LITTLE_ENDIAN)`($sp)
+
+ lfd $two0,8*18($ctx) # load constants
+ lfd $two32,8*19($ctx)
+ lfd $two64,8*20($ctx)
+ lfd $two96,8*21($ctx)
+ lfd $two130,8*22($ctx)
+ lfd $five_two130,8*23($ctx)
+
+ lfd $h0lo,8*0($ctx) # load [biased] hash value
+ lfd $h1lo,8*1($ctx)
+ lfd $h2lo,8*2($ctx)
+ lfd $h3lo,8*3($ctx)
+
+ stfd $two0,`$LOCALS+8*0`($sp) # input "template"
+ oris $in3,$padbit,`(1023+52+96)<<4`
+ stfd $two32,`$LOCALS+8*1`($sp)
+ stfd $two64,`$LOCALS+8*2`($sp)
+ stw $in3,`$LOCALS+8*3+(0^$LITTLE_ENDIAN)`($sp)
+
+ li $i1,4
+ li $i2,8
+ li $i3,12
+ $LWXLE $in0,0,$inp # load input
+ $LWXLE $in1,$i1,$inp
+ $LWXLE $in2,$i2,$inp
+ $LWXLE $in3,$i3,$inp
+ addi $inp,$inp,16
+
+ stw $in0,`$LOCALS+8*0+(4^$LITTLE_ENDIAN)`($sp) # fill "template"
+ stw $in1,`$LOCALS+8*1+(4^$LITTLE_ENDIAN)`($sp)
+ stw $in2,`$LOCALS+8*2+(4^$LITTLE_ENDIAN)`($sp)
+ stw $in3,`$LOCALS+8*3+(4^$LITTLE_ENDIAN)`($sp)
+
+ mffs $x0 # original fpscr
+ lfd $x1,`$LOCALS+8*4`($sp) # new fpscr
+ lfd $r0lo,8*4($ctx) # load key
+ lfd $r0hi,8*5($ctx)
+ lfd $r1lo,8*6($ctx)
+ lfd $r1hi,8*7($ctx)
+ lfd $r2lo,8*8($ctx)
+ lfd $r2hi,8*9($ctx)
+ lfd $r3lo,8*10($ctx)
+ lfd $r3hi,8*11($ctx)
+ lfd $s1lo,8*12($ctx)
+ lfd $s1hi,8*13($ctx)
+ lfd $s2lo,8*14($ctx)
+ lfd $s2hi,8*15($ctx)
+ lfd $s3lo,8*16($ctx)
+ lfd $s3hi,8*17($ctx)
+
+ stfd $x0,`$LOCALS+8*4`($sp) # save original fpscr
+ mtfsf 255,$x1
+
+ addic $len,$len,1
+ addze r0,r0
+ slwi. r0,r0,4
+ sub $inp,$inp,r0 # conditional rewind
+
+ lfd $x0,`$LOCALS+8*0`($sp)
+ lfd $x1,`$LOCALS+8*1`($sp)
+ lfd $x2,`$LOCALS+8*2`($sp)
+ lfd $x3,`$LOCALS+8*3`($sp)
+
+ fsub $h0lo,$h0lo,$two0 # de-bias hash value
+ $LWXLE $in0,0,$inp # modulo-scheduled input load
+ fsub $h1lo,$h1lo,$two32
+ $LWXLE $in1,$i1,$inp
+ fsub $h2lo,$h2lo,$two64
+ $LWXLE $in2,$i2,$inp
+ fsub $h3lo,$h3lo,$two96
+ $LWXLE $in3,$i3,$inp
+
+ fsub $x0,$x0,$two0 # de-bias input
+ addi $inp,$inp,16
+ fsub $x1,$x1,$two32
+ fsub $x2,$x2,$two64
+ fsub $x3,$x3,$two96
+
+ fadd $x0,$x0,$h0lo # accumulate input
+ stw $in0,`$LOCALS+8*0+(4^$LITTLE_ENDIAN)`($sp)
+ fadd $x1,$x1,$h1lo
+ stw $in1,`$LOCALS+8*1+(4^$LITTLE_ENDIAN)`($sp)
+ fadd $x2,$x2,$h2lo
+ stw $in2,`$LOCALS+8*2+(4^$LITTLE_ENDIAN)`($sp)
+ fadd $x3,$x3,$h3lo
+ stw $in3,`$LOCALS+8*3+(4^$LITTLE_ENDIAN)`($sp)
+
+ b Lentry
+
+.align 4
+Loop:
+ fsub $y0,$y0,$two0 # de-bias input
+ addic $len,$len,1
+ fsub $y1,$y1,$two32
+ addze r0,r0
+ fsub $y2,$y2,$two64
+ slwi. r0,r0,4
+ fsub $y3,$y3,$two96
+ sub $inp,$inp,r0 # conditional rewind
+
+ fadd $h0lo,$h0lo,$y0 # accumulate input
+ fadd $h0hi,$h0hi,$y1
+ fadd $h2lo,$h2lo,$y2
+ fadd $h2hi,$h2hi,$y3
+
+ ######################################### base 2^48 -> base 2^32
+ fadd $c1lo,$h1lo,$two64
+ $LWXLE $in0,0,$inp # modulo-scheduled input load
+ fadd $c1hi,$h1hi,$two64
+ $LWXLE $in1,$i1,$inp
+ fadd $c3lo,$h3lo,$two130
+ $LWXLE $in2,$i2,$inp
+ fadd $c3hi,$h3hi,$two130
+ $LWXLE $in3,$i3,$inp
+ fadd $c0lo,$h0lo,$two32
+ addi $inp,$inp,16
+ fadd $c0hi,$h0hi,$two32
+ fadd $c2lo,$h2lo,$two96
+ fadd $c2hi,$h2hi,$two96
+
+ fsub $c1lo,$c1lo,$two64
+ stw $in0,`$LOCALS+8*0+(4^$LITTLE_ENDIAN)`($sp) # fill "template"
+ fsub $c1hi,$c1hi,$two64
+ stw $in1,`$LOCALS+8*1+(4^$LITTLE_ENDIAN)`($sp)
+ fsub $c3lo,$c3lo,$two130
+ stw $in2,`$LOCALS+8*2+(4^$LITTLE_ENDIAN)`($sp)
+ fsub $c3hi,$c3hi,$two130
+ stw $in3,`$LOCALS+8*3+(4^$LITTLE_ENDIAN)`($sp)
+ fsub $c0lo,$c0lo,$two32
+ fsub $c0hi,$c0hi,$two32
+ fsub $c2lo,$c2lo,$two96
+ fsub $c2hi,$c2hi,$two96
+
+ fsub $h1lo,$h1lo,$c1lo
+ fsub $h1hi,$h1hi,$c1hi
+ fsub $h3lo,$h3lo,$c3lo
+ fsub $h3hi,$h3hi,$c3hi
+ fsub $h2lo,$h2lo,$c2lo
+ fsub $h2hi,$h2hi,$c2hi
+ fsub $h0lo,$h0lo,$c0lo
+ fsub $h0hi,$h0hi,$c0hi
+
+ fadd $h1lo,$h1lo,$c0lo
+ fadd $h1hi,$h1hi,$c0hi
+ fadd $h3lo,$h3lo,$c2lo
+ fadd $h3hi,$h3hi,$c2hi
+ fadd $h2lo,$h2lo,$c1lo
+ fadd $h2hi,$h2hi,$c1hi
+ fmadd $h0lo,$c3lo,$five_two130,$h0lo
+ fmadd $h0hi,$c3hi,$five_two130,$h0hi
+
+ fadd $x1,$h1lo,$h1hi
+ lfd $s1lo,8*12($ctx) # reload constants
+ fadd $x3,$h3lo,$h3hi
+ lfd $s1hi,8*13($ctx)
+ fadd $x2,$h2lo,$h2hi
+ lfd $r3lo,8*10($ctx)
+ fadd $x0,$h0lo,$h0hi
+ lfd $r3hi,8*11($ctx)
+Lentry:
+ fmul $h0lo,$s3lo,$x1
+ fmul $h0hi,$s3hi,$x1
+ fmul $h2lo,$r1lo,$x1
+ fmul $h2hi,$r1hi,$x1
+ fmul $h1lo,$r0lo,$x1
+ fmul $h1hi,$r0hi,$x1
+ fmul $h3lo,$r2lo,$x1
+ fmul $h3hi,$r2hi,$x1
+
+ fmadd $h0lo,$s1lo,$x3,$h0lo
+ fmadd $h0hi,$s1hi,$x3,$h0hi
+ fmadd $h2lo,$s3lo,$x3,$h2lo
+ fmadd $h2hi,$s3hi,$x3,$h2hi
+ fmadd $h1lo,$s2lo,$x3,$h1lo
+ fmadd $h1hi,$s2hi,$x3,$h1hi
+ fmadd $h3lo,$r0lo,$x3,$h3lo
+ fmadd $h3hi,$r0hi,$x3,$h3hi
+
+ fmadd $h0lo,$s2lo,$x2,$h0lo
+ fmadd $h0hi,$s2hi,$x2,$h0hi
+ fmadd $h2lo,$r0lo,$x2,$h2lo
+ fmadd $h2hi,$r0hi,$x2,$h2hi
+ fmadd $h1lo,$s3lo,$x2,$h1lo
+ fmadd $h1hi,$s3hi,$x2,$h1hi
+ fmadd $h3lo,$r1lo,$x2,$h3lo
+ fmadd $h3hi,$r1hi,$x2,$h3hi
+
+ fmadd $h0lo,$r0lo,$x0,$h0lo
+ lfd $y0,`$LOCALS+8*0`($sp) # load [biased] input
+ fmadd $h0hi,$r0hi,$x0,$h0hi
+ lfd $y1,`$LOCALS+8*1`($sp)
+ fmadd $h2lo,$r2lo,$x0,$h2lo
+ lfd $y2,`$LOCALS+8*2`($sp)
+ fmadd $h2hi,$r2hi,$x0,$h2hi
+ lfd $y3,`$LOCALS+8*3`($sp)
+ fmadd $h1lo,$r1lo,$x0,$h1lo
+ fmadd $h1hi,$r1hi,$x0,$h1hi
+ fmadd $h3lo,$r3lo,$x0,$h3lo
+ fmadd $h3hi,$r3hi,$x0,$h3hi
+
+ bdnz Loop
+
+ ######################################### base 2^48 -> base 2^32
+ fadd $c0lo,$h0lo,$two32
+ fadd $c0hi,$h0hi,$two32
+ fadd $c2lo,$h2lo,$two96
+ fadd $c2hi,$h2hi,$two96
+ fadd $c1lo,$h1lo,$two64
+ fadd $c1hi,$h1hi,$two64
+ fadd $c3lo,$h3lo,$two130
+ fadd $c3hi,$h3hi,$two130
+
+ fsub $c0lo,$c0lo,$two32
+ fsub $c0hi,$c0hi,$two32
+ fsub $c2lo,$c2lo,$two96
+ fsub $c2hi,$c2hi,$two96
+ fsub $c1lo,$c1lo,$two64
+ fsub $c1hi,$c1hi,$two64
+ fsub $c3lo,$c3lo,$two130
+ fsub $c3hi,$c3hi,$two130
+
+ fsub $h1lo,$h1lo,$c1lo
+ fsub $h1hi,$h1hi,$c1hi
+ fsub $h3lo,$h3lo,$c3lo
+ fsub $h3hi,$h3hi,$c3hi
+ fsub $h2lo,$h2lo,$c2lo
+ fsub $h2hi,$h2hi,$c2hi
+ fsub $h0lo,$h0lo,$c0lo
+ fsub $h0hi,$h0hi,$c0hi
+
+ fadd $h1lo,$h1lo,$c0lo
+ fadd $h1hi,$h1hi,$c0hi
+ fadd $h3lo,$h3lo,$c2lo
+ fadd $h3hi,$h3hi,$c2hi
+ fadd $h2lo,$h2lo,$c1lo
+ fadd $h2hi,$h2hi,$c1hi
+ fmadd $h0lo,$c3lo,$five_two130,$h0lo
+ fmadd $h0hi,$c3hi,$five_two130,$h0hi
+
+ fadd $x1,$h1lo,$h1hi
+ fadd $x3,$h3lo,$h3hi
+ fadd $x2,$h2lo,$h2hi
+ fadd $x0,$h0lo,$h0hi
+
+ lfd $h0lo,`$LOCALS+8*4`($sp) # pull saved fpscr
+ fadd $x1,$x1,$two32 # bias
+ fadd $x3,$x3,$two96
+ fadd $x2,$x2,$two64
+ fadd $x0,$x0,$two0
+
+ stfd $x1,8*1($ctx) # store [biased] hash value
+ stfd $x3,8*3($ctx)
+ stfd $x2,8*2($ctx)
+ stfd $x0,8*0($ctx)
+
+ mtfsf 255,$h0lo # restore original fpscr
+ lfd f14,`$FRAME-8*18`($sp)
+ lfd f15,`$FRAME-8*17`($sp)
+ lfd f16,`$FRAME-8*16`($sp)
+ lfd f17,`$FRAME-8*15`($sp)
+ lfd f18,`$FRAME-8*14`($sp)
+ lfd f19,`$FRAME-8*13`($sp)
+ lfd f20,`$FRAME-8*12`($sp)
+ lfd f21,`$FRAME-8*11`($sp)
+ lfd f22,`$FRAME-8*10`($sp)
+ lfd f23,`$FRAME-8*9`($sp)
+ lfd f24,`$FRAME-8*8`($sp)
+ lfd f25,`$FRAME-8*7`($sp)
+ lfd f26,`$FRAME-8*6`($sp)
+ lfd f27,`$FRAME-8*5`($sp)
+ lfd f28,`$FRAME-8*4`($sp)
+ lfd f29,`$FRAME-8*3`($sp)
+ lfd f30,`$FRAME-8*2`($sp)
+ lfd f31,`$FRAME-8*1`($sp)
+ addi $sp,$sp,$FRAME
+Labort:
+ blr
+ .long 0
+ .byte 0,12,4,1,0x80,0,4,0
+.size .poly1305_blocks_fpu,.-.poly1305_blocks_fpu
+___
+{
+my ($mac,$nonce)=($inp,$len);
+
+my ($h0,$h1,$h2,$h3,$h4, $d0,$d1,$d2,$d3
+ ) = map("r$_",(7..11,28..31));
+my $mask = "r0";
+my $FRAME = (6+4)*$SIZE_T;
+
+$code.=<<___;
+.globl .poly1305_emit_fpu
+.align 4
+.poly1305_emit_fpu:
+ $STU $sp,-$FRAME($sp)
+ mflr r0
+ $PUSH r28,`$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)
+
+ lwz $d0,`8*0+(0^$LITTLE_ENDIAN)`($ctx) # load hash
+ lwz $h0,`8*0+(4^$LITTLE_ENDIAN)`($ctx)
+ lwz $d1,`8*1+(0^$LITTLE_ENDIAN)`($ctx)
+ lwz $h1,`8*1+(4^$LITTLE_ENDIAN)`($ctx)
+ lwz $d2,`8*2+(0^$LITTLE_ENDIAN)`($ctx)
+ lwz $h2,`8*2+(4^$LITTLE_ENDIAN)`($ctx)
+ lwz $d3,`8*3+(0^$LITTLE_ENDIAN)`($ctx)
+ lwz $h3,`8*3+(4^$LITTLE_ENDIAN)`($ctx)
+
+ lis $mask,0xfff0
+ andc $d0,$d0,$mask # mask exponent
+ andc $d1,$d1,$mask
+ andc $d2,$d2,$mask
+ andc $d3,$d3,$mask # can be partially reduced...
+ li $mask,3
+
+ srwi $padbit,$d3,2 # ... so reduce
+ and $h4,$d3,$mask
+ andc $d3,$d3,$mask
+ add $d3,$d3,$padbit
+___
+ if ($SIZE_T==4) {
+$code.=<<___;
+ addc $h0,$h0,$d3
+ adde $h1,$h1,$d0
+ adde $h2,$h2,$d1
+ adde $h3,$h3,$d2
+ addze $h4,$h4
+
+ addic $d0,$h0,5 # compare to modulus
+ addze $d1,$h1
+ addze $d2,$h2
+ addze $d3,$h3
+ addze $mask,$h4
+
+ srwi $mask,$mask,2 # did it carry/borrow?
+ neg $mask,$mask
+ srawi $mask,$mask,31 # mask
+
+ andc $h0,$h0,$mask
+ and $d0,$d0,$mask
+ andc $h1,$h1,$mask
+ and $d1,$d1,$mask
+ or $h0,$h0,$d0
+ lwz $d0,0($nonce) # load nonce
+ andc $h2,$h2,$mask
+ and $d2,$d2,$mask
+ or $h1,$h1,$d1
+ lwz $d1,4($nonce)
+ andc $h3,$h3,$mask
+ and $d3,$d3,$mask
+ or $h2,$h2,$d2
+ lwz $d2,8($nonce)
+ or $h3,$h3,$d3
+ lwz $d3,12($nonce)
+
+ addc $h0,$h0,$d0 # accumulate nonce
+ adde $h1,$h1,$d1
+ adde $h2,$h2,$d2
+ adde $h3,$h3,$d3
+___
+ } else {
+$code.=<<___;
+ add $h0,$h0,$d3
+ add $h1,$h1,$d0
+ add $h2,$h2,$d1
+ add $h3,$h3,$d2
+
+ srdi $d0,$h0,32
+ add $h1,$h1,$d0
+ srdi $d1,$h1,32
+ add $h2,$h2,$d1
+ srdi $d2,$h2,32
+ add $h3,$h3,$d2
+ srdi $d3,$h3,32
+ add $h4,$h4,$d3
+
+ insrdi $h0,$h1,32,0
+ insrdi $h2,$h3,32,0
+
+ addic $d0,$h0,5 # compare to modulus
+ addze $d1,$h2
+ addze $d2,$h4
+
+ srdi $mask,$d2,2 # did it carry/borrow?
+ neg $mask,$mask
+ sradi $mask,$mask,63 # mask
+ ld $d2,0($nonce) # load nonce
+ ld $d3,8($nonce)
+
+ andc $h0,$h0,$mask
+ and $d0,$d0,$mask
+ andc $h2,$h2,$mask
+ and $d1,$d1,$mask
+ or $h0,$h0,$d0
+ or $h2,$h2,$d1
+___
+$code.=<<___ if (!$LITTLE_ENDIAN);
+ rotldi $d2,$d2,32 # flip nonce words
+ rotldi $d3,$d3,32
+___
+$code.=<<___;
+ addc $h0,$h0,$d2 # accumulate nonce
+ adde $h2,$h2,$d3
+
+ srdi $h1,$h0,32
+ srdi $h3,$h2,32
+___
+ }
+$code.=<<___ if ($LITTLE_ENDIAN);
+ stw $h0,0($mac) # write result
+ stw $h1,4($mac)
+ stw $h2,8($mac)
+ stw $h3,12($mac)
+___
+$code.=<<___ if (!$LITTLE_ENDIAN);
+ li $d1,4
+ stwbrx $h0,0,$mac # write result
+ li $d2,8
+ stwbrx $h1,$d1,$mac
+ li $d3,12
+ stwbrx $h2,$d2,$mac
+ stwbrx $h3,$d3,$mac
+___
+$code.=<<___;
+ $POP r28,`$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)
+ addi $sp,$sp,$FRAME
+ blr
+ .long 0
+ .byte 0,12,4,1,0x80,4,3,0
+.size .poly1305_emit_fpu,.-.poly1305_emit_fpu
+___
+}
+# Ugly hack here, because PPC assembler syntax seem to vary too
+# much from platforms to platform...
+$code.=<<___;
+.align 6
+LPICmeup:
+ mflr r0
+ bcl 20,31,\$+4
+ mflr $len # vvvvvv "distance" between . and 1st data entry
+ addi $len,$len,`64-8` # borrow $len
+ mtlr r0
+ blr
+ .long 0
+ .byte 0,12,0x14,0,0,0,0,0
+ .space `64-9*4`
+
+.quad 0x4330000000000000 # 2^(52+0)
+.quad 0x4530000000000000 # 2^(52+32)
+.quad 0x4730000000000000 # 2^(52+64)
+.quad 0x4930000000000000 # 2^(52+96)
+.quad 0x4b50000000000000 # 2^(52+130)
+
+.quad 0x37f4000000000000 # 5/2^130
+
+.quad 0x4430000000000000 # 2^(52+16+0)
+.quad 0x4630000000000000 # 2^(52+16+32)
+.quad 0x4830000000000000 # 2^(52+16+64)
+.quad 0x4a30000000000000 # 2^(52+16+96)
+.quad 0x3e30000000000000 # 2^(52+16+0-96)
+.quad 0x4030000000000000 # 2^(52+16+32-96)
+.quad 0x4230000000000000 # 2^(52+16+64-96)
+
+.quad 0x0000000000000001 # fpscr: truncate, no exceptions
+.asciz "Poly1305 for PPC FPU, CRYPTOGAMS by <appro\@openssl.org>"
+.align 4
+___
+
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
+print $code;
+close STDOUT;
$(PERL) {- $sourcedir -}/asm/poly1305-x86.pl $(PERLASM_SCHEME) $(CFLAGS) $(PROCESSOR) > $@
{- $builddir -}/poly1305-x86_64.s: {- $sourcedir -}/asm/poly1305-x86_64.pl
$(PERL) {- $sourcedir -}/asm/poly1305-x86_64.pl $(PERLASM_SCHEME) > $@
+{- $builddir -}/poly1305-ppc.s: {- $sourcedir -}/asm/poly1305-ppc.pl
+ $(PERL) {- $sourcedir -}/asm/poly1305-ppc.pl $(PERLASM_SCHEME) $@
+{- $builddir -}/poly1305-ppcfp.s: {- $sourcedir -}/asm/poly1305-ppcfp.pl
+ $(PERL) {- $sourcedir -}/asm/poly1305-ppcfp.pl $(PERLASM_SCHEME) $@
{- $builddir -}/poly1305-%.S: {- $sourcedir -}/asm/poly1305-%.pl
$(PERL) $< $(PERLASM_SCHEME) $@
projects / oweals / openssl.git / commitdiff