258 lines
4.4 KiB
Raku
Executable file
258 lines
4.4 KiB
Raku
Executable file
#!/usr/bin/env perl
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$flavour = shift;
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}perlasm/ppc-xlate.pl" and -f $xlate) or
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die "can't locate ppc-xlate.pl";
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open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
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if ($flavour=~/64/) {
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$CMPLI="cmpldi";
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$SHRLI="srdi";
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$SIGNX="extsw";
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} else {
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$CMPLI="cmplwi";
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$SHRLI="srwi";
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$SIGNX="mr";
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}
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$code=<<___;
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.machine "any"
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.text
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.globl .OPENSSL_fpu_probe
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.align 4
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.OPENSSL_fpu_probe:
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fmr f0,f0
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,0,0
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.size .OPENSSL_fpu_probe,.-.OPENSSL_fpu_probe
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.globl .OPENSSL_ppc64_probe
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.align 4
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.OPENSSL_ppc64_probe:
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fcfid f1,f1
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extrdi r0,r0,32,0
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,0,0
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.size .OPENSSL_ppc64_probe,.-.OPENSSL_ppc64_probe
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.globl .OPENSSL_altivec_probe
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.align 4
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.OPENSSL_altivec_probe:
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.long 0x10000484 # vor v0,v0,v0
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,0,0
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.size .OPENSSL_altivec_probe,.-..OPENSSL_altivec_probe
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.globl .OPENSSL_crypto207_probe
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.align 4
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.OPENSSL_crypto207_probe:
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lvx_u v0,0,r1
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vcipher v0,v0,v0
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,0,0
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.size .OPENSSL_crypto207_probe,.-.OPENSSL_crypto207_probe
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.globl .OPENSSL_wipe_cpu
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.align 4
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.OPENSSL_wipe_cpu:
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xor r0,r0,r0
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fmr f0,f31
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fmr f1,f31
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fmr f2,f31
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mr r3,r1
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fmr f3,f31
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xor r4,r4,r4
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fmr f4,f31
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xor r5,r5,r5
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fmr f5,f31
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xor r6,r6,r6
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fmr f6,f31
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xor r7,r7,r7
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fmr f7,f31
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xor r8,r8,r8
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fmr f8,f31
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xor r9,r9,r9
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fmr f9,f31
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xor r10,r10,r10
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fmr f10,f31
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xor r11,r11,r11
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fmr f11,f31
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xor r12,r12,r12
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fmr f12,f31
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fmr f13,f31
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,0,0
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.size .OPENSSL_wipe_cpu,.-.OPENSSL_wipe_cpu
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.globl .OPENSSL_atomic_add
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.align 4
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.OPENSSL_atomic_add:
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Ladd: lwarx r5,0,r3
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add r0,r4,r5
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stwcx. r0,0,r3
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bne- Ladd
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$SIGNX r3,r0
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,2,0
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.long 0
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.size .OPENSSL_atomic_add,.-.OPENSSL_atomic_add
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.globl .OPENSSL_rdtsc
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.align 4
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.OPENSSL_rdtsc:
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___
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$code.=<<___ if ($flavour =~ /64/);
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mftb r3
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___
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$code.=<<___ if ($flavour !~ /64/);
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Loop_rdtsc:
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mftbu r5
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mftb r3
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mftbu r4
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cmplw r4,r5
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bne Loop_rdtsc
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___
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$code.=<<___;
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,0,0
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.size .OPENSSL_rdtsc,.-.OPENSSL_rdtsc
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.globl .OPENSSL_cleanse
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.align 4
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.OPENSSL_cleanse:
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$CMPLI r4,7
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li r0,0
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bge Lot
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$CMPLI r4,0
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beqlr-
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Little: mtctr r4
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stb r0,0(r3)
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addi r3,r3,1
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bdnz \$-8
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blr
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Lot: andi. r5,r3,3
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beq Laligned
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stb r0,0(r3)
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subi r4,r4,1
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addi r3,r3,1
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b Lot
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Laligned:
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$SHRLI r5,r4,2
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mtctr r5
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stw r0,0(r3)
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addi r3,r3,4
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bdnz \$-8
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andi. r4,r4,3
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bne Little
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,2,0
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.long 0
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.size .OPENSSL_cleanse,.-.OPENSSL_cleanse
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___
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{
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my ($out,$cnt,$max)=("r3","r4","r5");
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my ($tick,$lasttick)=("r6","r7");
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my ($diff,$lastdiff)=("r8","r9");
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$code.=<<___;
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.globl .OPENSSL_instrument_bus
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.align 4
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.OPENSSL_instrument_bus:
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mtctr $cnt
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mftb $lasttick # collect 1st tick
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li $diff,0
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dcbf 0,$out # flush cache line
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lwarx $tick,0,$out # load and lock
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add $tick,$tick,$diff
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stwcx. $tick,0,$out
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stwx $tick,0,$out
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Loop: mftb $tick
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sub $diff,$tick,$lasttick
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mr $lasttick,$tick
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dcbf 0,$out # flush cache line
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lwarx $tick,0,$out # load and lock
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add $tick,$tick,$diff
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stwcx. $tick,0,$out
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stwx $tick,0,$out
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addi $out,$out,4 # ++$out
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bdnz Loop
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mr r3,$cnt
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,2,0
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.long 0
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.size .OPENSSL_instrument_bus,.-.OPENSSL_instrument_bus
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.globl .OPENSSL_instrument_bus2
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.align 4
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.OPENSSL_instrument_bus2:
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mr r0,$cnt
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slwi $cnt,$cnt,2
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mftb $lasttick # collect 1st tick
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li $diff,0
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dcbf 0,$out # flush cache line
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lwarx $tick,0,$out # load and lock
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add $tick,$tick,$diff
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stwcx. $tick,0,$out
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stwx $tick,0,$out
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mftb $tick # collect 1st diff
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sub $diff,$tick,$lasttick
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mr $lasttick,$tick
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mr $lastdiff,$diff
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Loop2:
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dcbf 0,$out # flush cache line
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lwarx $tick,0,$out # load and lock
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add $tick,$tick,$diff
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stwcx. $tick,0,$out
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stwx $tick,0,$out
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addic. $max,$max,-1
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beq Ldone2
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mftb $tick
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sub $diff,$tick,$lasttick
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mr $lasttick,$tick
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cmplw 7,$diff,$lastdiff
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mr $lastdiff,$diff
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mfcr $tick # pull cr
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not $tick,$tick # flip bits
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rlwinm $tick,$tick,1,29,29 # isolate flipped eq bit and scale
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sub. $cnt,$cnt,$tick # conditional --$cnt
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add $out,$out,$tick # conditional ++$out
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bne Loop2
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Ldone2:
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srwi $cnt,$cnt,2
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sub r3,r0,$cnt
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,3,0
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.long 0
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.size .OPENSSL_instrument_bus2,.-.OPENSSL_instrument_bus2
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___
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}
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$code =~ s/\`([^\`]*)\`/eval $1/gem;
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print $code;
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close STDOUT;
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