################################################################ # Recognized "flavour"-s are: # # linux{32|64}[le] GNU assembler and ELF symbol decorations, # with little-endian option # linux64v2 GNU asssembler and big-endian instantiation # of latest ELF specification # aix{32|64} AIX assembler and symbol decorations # osx{32|64} Mac OS X assembler and symbol decoratons
my $flavour = shift;
my $output = shift;
open STDOUT,">$output" || die "can't open $output: $!";
my %GLOBALS;
my %TYPES;
my $dotinlocallabels=($flavour=~/linux/)?1:0;
################################################################ # directives which need special treatment on different platforms ################################################################
my $type = sub {
my ($dir,$name,$type) = @_;
$TYPES{$name} = $type; if ($flavour =~ /linux/) {
$name =~ s|^\.||; ".type $name,$type";
} else { "";
}
};
my $globl = sub {
my $junk = shift;
my $name = shift;
my $global = \$GLOBALS{$name};
my $type = \$TYPES{$name};
my $ret;
################################################################ # simplified mnemonics not handled by at least one assembler ################################################################
my $cmplw = sub {
my $f = shift;
my $cr = 0; $cr = shift if ($#_>1); # Some out-of-date 32-bit GNU assembler just can't handle cmplw...
($flavour =~ /linux.*32/) ? " .long ".sprintf "0x%x",31<<26|$cr<<23|$_[0]<<16|$_[1]<<11|64 : " cmplw ".join(',',$cr,@_);
};
my $bdnz = sub {
my $f = shift;
my $bo = $f=~/[\+\-]/ ? 16+9 : 16; # optional "to be taken" hint " bc $bo,0,".shift;
} if ($flavour!~/linux/);
my $bltlr = sub {
my $f = shift;
my $bo = $f=~/\-/ ? 12+2 : 12; # optional "not to be taken" hint
($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints " .long ".sprintf "0x%x",19<<26|$bo<<21|16<<1 : " bclr $bo,0";
};
my $bnelr = sub {
my $f = shift;
my $bo = $f=~/\-/ ? 4+2 : 4; # optional "not to be taken" hint
($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints " .long ".sprintf "0x%x",19<<26|$bo<<21|2<<16|16<<1 : " bclr $bo,2";
};
my $beqlr = sub {
my $f = shift;
my $bo = $f=~/-/ ? 12+2 : 12; # optional "not to be taken" hint
($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints " .long ".sprintf "0x%X",19<<26|$bo<<21|2<<16|16<<1 : " bclr $bo,2";
}; # GNU assembler can't handle extrdi rA,rS,16,48, or when sum of last two # arguments is 64, with "operand out of range" error.
my $extrdi = sub {
my ($f,$ra,$rs,$n,$b) = @_;
$b = ($b+$n)&63; $n = 64-$n; " rldicl $ra,$rs,$b,$n";
};
my $vmr = sub {
my ($f,$vx,$vy) = @_; " vor $vx,$vy,$vy";
};
# Some ABIs specify vrsave, special-purpose register #256, as reserved # for system use.
my $no_vrsave = ($flavour =~ /aix|linux64(le|v2)/);
my $mtspr = sub {
my ($f,$idx,$ra) = @_; if ($idx == 256 && $no_vrsave) { " or $ra,$ra,$ra";
} else { " mtspr $idx,$ra";
}
};
my $mfspr = sub {
my ($f,$rd,$idx) = @_; if ($idx == 256 && $no_vrsave) { " li $rd,-1";
} else { " mfspr $rd,$idx";
}
};
# PowerISA 2.06 stuff
sub vsxmem_op {
my ($f, $vrt, $ra, $rb, $op) = @_; " .long ".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|($rb<<11)|($op*2+1);
} # made-up unaligned memory reference AltiVec/VMX instructions
my $lvx_u = sub { vsxmem_op(@_, 844); }; # lxvd2x
my $stvx_u = sub { vsxmem_op(@_, 972); }; # stxvd2x
my $lvdx_u = sub { vsxmem_op(@_, 588); }; # lxsdx
my $stvdx_u = sub { vsxmem_op(@_, 716); }; # stxsdx
my $lvx_4w = sub { vsxmem_op(@_, 780); }; # lxvw4x
my $stvx_4w = sub { vsxmem_op(@_, 908); }; # stxvw4x
my $lvx_splt = sub { vsxmem_op(@_, 332); }; # lxvdsx # VSX instruction[s] masqueraded as made-up AltiVec/VMX
my $vpermdi = sub { # xxpermdi
my ($f, $vrt, $vra, $vrb, $dm) = @_;
$dm = oct($dm) if ($dm =~ /^0/); " .long ".sprintf "0x%X",(60<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|($dm<<8)|(10<<3)|7;
};
# PowerISA 2.07 stuff
sub vcrypto_op {
my ($f, $vrt, $vra, $vrb, $op) = @_; " .long ".sprintf "0x%X",(4<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|$op;
}
sub vfour {
my ($f, $vrt, $vra, $vrb, $vrc, $op) = @_; " .long ".sprintf "0x%X",(4<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|($vrc<<6)|$op;
};
my $vcipher = sub { vcrypto_op(@_, 1288); };
my $vcipherlast = sub { vcrypto_op(@_, 1289); };
my $vncipher = sub { vcrypto_op(@_, 1352); };
my $vncipherlast= sub { vcrypto_op(@_, 1353); };
my $vsbox = sub { vcrypto_op(@_, 0, 1480); };
my $vshasigmad = sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1730); };
my $vshasigmaw = sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1666); };
my $vpmsumb = sub { vcrypto_op(@_, 1032); };
my $vpmsumd = sub { vcrypto_op(@_, 1224); };
my $vpmsubh = sub { vcrypto_op(@_, 1096); };
my $vpmsumw = sub { vcrypto_op(@_, 1160); }; # These are not really crypto, but vcrypto_op template works
my $vaddudm = sub { vcrypto_op(@_, 192); };
my $vadduqm = sub { vcrypto_op(@_, 256); };
my $vmuleuw = sub { vcrypto_op(@_, 648); };
my $vmulouw = sub { vcrypto_op(@_, 136); };
my $vrld = sub { vcrypto_op(@_, 196); };
my $vsld = sub { vcrypto_op(@_, 1476); };
my $vsrd = sub { vcrypto_op(@_, 1732); };
my $vsubudm = sub { vcrypto_op(@_, 1216); };
my $vaddcuq = sub { vcrypto_op(@_, 320); };
my $vaddeuqm = sub { vfour(@_,60); };
my $vaddecuq = sub { vfour(@_,61); };
my $vmrgew = sub { vfour(@_,0,1932); };
my $vmrgow = sub { vfour(@_,0,1676); };
my $mtsle = sub {
my ($f, $arg) = @_; " .long ".sprintf "0x%X",(31<<26)|($arg<<21)|(147*2);
};
# VSX instructions masqueraded as AltiVec/VMX
my $mtvrd = sub {
my ($f, $vrt, $ra) = @_; " .long ".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|(179<<1)|1;
};
my $mtvrwz = sub {
my ($f, $vrt, $ra) = @_; " .long ".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|(243<<1)|1;
};
my $lvwzx_u = sub { vsxmem_op(@_, 12); }; # lxsiwzx
my $stvwx_u = sub { vsxmem_op(@_, 140); }; # stxsiwx
# PowerISA 3.0 stuff
my $maddhdu = sub { vfour(@_,49); };
my $maddld = sub { vfour(@_,51); };
my $darn = sub {
my ($f, $rt, $l) = @_; " .long ".sprintf "0x%X",(31<<26)|($rt<<21)|($l<<16)|(755<<1);
};
my $iseleq = sub {
my ($f, $rt, $ra, $rb) = @_; " .long ".sprintf "0x%X",(31<<26)|($rt<<21)|($ra<<16)|($rb<<11)|(2<<6)|30;
}; # VSX instruction[s] masqueraded as made-up AltiVec/VMX
my $vspltib = sub { # xxspltib
my ($f, $vrt, $imm8) = @_;
$imm8 = oct($imm8) if ($imm8 =~ /^0/);
$imm8 &= 0xff; " .long ".sprintf "0x%X",(60<<26)|($vrt<<21)|($imm8<<11)|(360<<1)|1;
};
# PowerISA 3.0B stuff
my $addex = sub {
my ($f, $rt, $ra, $rb, $cy) = @_; # only cy==0 is specified in 3.0B " .long ".sprintf "0x%X",(31<<26)|($rt<<21)|($ra<<16)|($rb<<11)|($cy<<9)|(170<<1);
};
my $vmsumudm = sub { vfour(@_,35); };
while($line=<>) {
$line =~ s|[#!;].*$||; # get rid of asm-style comments...
$line =~ s|/\*.*\*/||; # ... and C-style comments...
$line =~ s|^\s+||; # ... and skip white spaces in beginning...
$line =~ s|\s+$||; # ... and at the end
{
$line =~ s|\.L(\w+)|L$1|g; # common denominator for Locallabel
$line =~ s|\bL(\w+)|\.L$1|g if ($dotinlocallabels);
}
{
$line =~ s|(^[\.\w]+)\:\s*||;
my $label = $1; if ($label) {
my $xlated = ($GLOBALS{$label} or $label);
print "$xlated:"; if ($flavour =~ /linux.*64(le|v2)/) { if ($TYPES{$label} =~ /function/) {
printf "\n.localentry %s,0\n",$xlated;
}
}
}
}
{
$line =~ s|^\s*(\.?)(\w+)([\.\+\-]?)\s*||;
my $c = $1; $c = "\t"if ($c eq "");
my $mnemonic = $2;
my $f = $3;
my $opcode = eval("\$$mnemonic");
$line =~ s/\b(c?[rf]|v|vs)([0-9]+)\b/$2/g if ($c ne "." and $flavour !~ /osx/); if (ref($opcode) eq 'CODE') { $line = &$opcode($f,split(/,\s*/,$line)); }
elsif ($mnemonic) { $line = $c.$mnemonic.$f."\t".$line; }
}
print $line if ($line);
print "\n";
}
close STDOUT;
Messung V0.5
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