136 lines
2 KiB
Raku
136 lines
2 KiB
Raku
#!/usr/bin/env perl
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$flavour = shift;
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$output = shift;
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open STDOUT,">$output";
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if ($flavour =~ /64/) {
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$LEVEL ="2.0W";
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$SIZE_T =8;
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$ST ="std";
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} else {
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$LEVEL ="1.1";
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$SIZE_T =4;
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$ST ="stw";
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}
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$rp="%r2";
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$sp="%r30";
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$rv="%r28";
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$code=<<___;
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.LEVEL $LEVEL
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.SPACE \$TEXT\$
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.SUBSPA \$CODE\$,QUAD=0,ALIGN=8,ACCESS=0x2C,CODE_ONLY
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.EXPORT OPENSSL_cpuid_setup,ENTRY
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.ALIGN 8
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OPENSSL_cpuid_setup
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.PROC
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.CALLINFO NO_CALLS
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.ENTRY
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bv ($rp)
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.EXIT
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nop
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.PROCEND
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.EXPORT OPENSSL_rdtsc,ENTRY
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.ALIGN 8
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OPENSSL_rdtsc
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.PROC
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.CALLINFO NO_CALLS
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.ENTRY
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mfctl %cr16,$rv
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bv ($rp)
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.EXIT
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nop
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.PROCEND
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.EXPORT OPENSSL_wipe_cpu,ENTRY
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.ALIGN 8
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OPENSSL_wipe_cpu
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.PROC
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.CALLINFO NO_CALLS
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.ENTRY
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xor %r0,%r0,%r1
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fcpy,dbl %fr0,%fr4
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xor %r0,%r0,%r19
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fcpy,dbl %fr0,%fr5
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xor %r0,%r0,%r20
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fcpy,dbl %fr0,%fr6
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xor %r0,%r0,%r21
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fcpy,dbl %fr0,%fr7
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xor %r0,%r0,%r22
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fcpy,dbl %fr0,%fr8
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xor %r0,%r0,%r23
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fcpy,dbl %fr0,%fr9
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xor %r0,%r0,%r24
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fcpy,dbl %fr0,%fr10
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xor %r0,%r0,%r25
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fcpy,dbl %fr0,%fr11
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xor %r0,%r0,%r26
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fcpy,dbl %fr0,%fr22
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xor %r0,%r0,%r29
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fcpy,dbl %fr0,%fr23
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xor %r0,%r0,%r31
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fcpy,dbl %fr0,%fr24
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fcpy,dbl %fr0,%fr25
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fcpy,dbl %fr0,%fr26
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fcpy,dbl %fr0,%fr27
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fcpy,dbl %fr0,%fr28
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fcpy,dbl %fr0,%fr29
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fcpy,dbl %fr0,%fr30
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fcpy,dbl %fr0,%fr31
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bv ($rp)
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.EXIT
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ldo 0($sp),$rv
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.PROCEND
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___
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{
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$inp="%r26";
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$len="%r25";
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$code.=<<___;
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.EXPORT OPENSSL_cleanse,ENTRY,ARGW0=GR,ARGW1=GR
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.ALIGN 8
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OPENSSL_cleanse
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.PROC
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.CALLINFO NO_CALLS
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.ENTRY
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cmpib,*>> 15,$len,Little
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ldi $SIZE_T-1,%r1
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Lalign
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and,*<> $inp,%r1,%r28
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b,n Laligned
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stb %r0,0($inp)
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ldo -1($len),$len
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b Lalign
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ldo 1($inp),$inp
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Laligned
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andcm $len,%r1,%r28
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Loop
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$ST %r0,0($inp)
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addib,*vnz -$SIZE_T,%r28,Loop
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ldo $SIZE_T($inp),$inp
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and,*<> $len,%r1,$len
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b,n Ldone
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Little
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stb %r0,0($inp)
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addib,*vnz -1,$len,Little
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ldo 1($inp),$inp
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Ldone
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bv ($rp)
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.EXIT
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nop
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.PROCEND
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___
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}
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$code =~ s/cmpib,\*/comib,/gm if ($SIZE_T==4);
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$code =~ s/,\*/,/gm if ($SIZE_T==4);
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print $code;
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close STDOUT;
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