226 lines
6.5 KiB
Perl
Executable file
226 lines
6.5 KiB
Perl
Executable file
#!/usr/bin/env perl
|
|
|
|
# PowerPC assembler distiller by <appro>.
|
|
|
|
my $flavour = shift;
|
|
my $output = shift;
|
|
open STDOUT,">$output" || die "can't open $output: $!";
|
|
|
|
my %GLOBALS;
|
|
my $dotinlocallabels=($flavour=~/linux/)?1:0;
|
|
|
|
################################################################
|
|
# directives which need special treatment on different platforms
|
|
################################################################
|
|
my $globl = sub {
|
|
my $junk = shift;
|
|
my $name = shift;
|
|
my $global = \$GLOBALS{$name};
|
|
my $ret;
|
|
|
|
$name =~ s|^[\.\_]||;
|
|
|
|
SWITCH: for ($flavour) {
|
|
/aix/ && do { $name = ".$name";
|
|
last;
|
|
};
|
|
/osx/ && do { $name = "_$name";
|
|
last;
|
|
};
|
|
/linux.*(32|64le)/
|
|
&& do { $ret .= ".globl $name\n";
|
|
$ret .= ".type $name,\@function";
|
|
last;
|
|
};
|
|
/linux.*64/ && do { $ret .= ".globl $name\n";
|
|
$ret .= ".type $name,\@function\n";
|
|
$ret .= ".section \".opd\",\"aw\"\n";
|
|
$ret .= ".align 3\n";
|
|
$ret .= "$name:\n";
|
|
$ret .= ".quad .$name,.TOC.\@tocbase,0\n";
|
|
$ret .= ".previous\n";
|
|
|
|
$name = ".$name";
|
|
last;
|
|
};
|
|
}
|
|
|
|
$ret = ".globl $name" if (!$ret);
|
|
$$global = $name;
|
|
$ret;
|
|
};
|
|
my $text = sub {
|
|
my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
|
|
$ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64le/);
|
|
$ret;
|
|
};
|
|
my $machine = sub {
|
|
my $junk = shift;
|
|
my $arch = shift;
|
|
if ($flavour =~ /osx/)
|
|
{ $arch =~ s/\"//g;
|
|
$arch = ($flavour=~/64/) ? "ppc970-64" : "ppc970" if ($arch eq "any");
|
|
}
|
|
".machine $arch";
|
|
};
|
|
my $size = sub {
|
|
if ($flavour =~ /linux/)
|
|
{ shift;
|
|
my $name = shift; $name =~ s|^[\.\_]||;
|
|
my $ret = ".size $name,.-".($flavour=~/64$/?".":"").$name;
|
|
$ret .= "\n.size .$name,.-.$name" if ($flavour=~/64$/);
|
|
$ret;
|
|
}
|
|
else
|
|
{ ""; }
|
|
};
|
|
my $asciz = sub {
|
|
shift;
|
|
my $line = join(",",@_);
|
|
if ($line =~ /^"(.*)"$/)
|
|
{ ".byte " . join(",",unpack("C*",$1),0) . "\n.align 2"; }
|
|
else
|
|
{ ""; }
|
|
};
|
|
my $quad = sub {
|
|
shift;
|
|
my @ret;
|
|
my ($hi,$lo);
|
|
for (@_) {
|
|
if (/^0x([0-9a-f]*?)([0-9a-f]{1,8})$/io)
|
|
{ $hi=$1?"0x$1":"0"; $lo="0x$2"; }
|
|
elsif (/^([0-9]+)$/o)
|
|
{ $hi=$1>>32; $lo=$1&0xffffffff; } # error-prone with 32-bit perl
|
|
else
|
|
{ $hi=undef; $lo=$_; }
|
|
|
|
if (defined($hi))
|
|
{ push(@ret,$flavour=~/le$/o?".long\t$lo,$hi":".long\t$hi,$lo"); }
|
|
else
|
|
{ push(@ret,".quad $lo"); }
|
|
}
|
|
join("\n",@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,$vy";
|
|
};
|
|
|
|
# PowerISA 2.06 stuff
|
|
sub vsxmem_op {
|
|
my ($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 $stvx_4w = sub { vsxmem_op(@_, 908); }; # stxvw4x
|
|
|
|
# PowerISA 2.07 stuff
|
|
sub vcrypto_op {
|
|
my ($f, $vrt, $vra, $vrb, $op) = @_;
|
|
" .long ".sprintf "0x%X",(4<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|$op;
|
|
}
|
|
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); };
|
|
my $vaddudm = sub { vcrypto_op(@_, 192); };
|
|
|
|
my $mtsle = sub {
|
|
my ($f, $arg) = @_;
|
|
" .long ".sprintf "0x%X",(31<<26)|($arg<<21)|(147*2);
|
|
};
|
|
|
|
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|\b\.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) {
|
|
printf "%s:",($GLOBALS{$label} or $label);
|
|
printf "\n.localentry\t$GLOBALS{$label},0" if ($GLOBALS{$label} && $flavour =~ /linux.*64le/);
|
|
}
|
|
}
|
|
|
|
{
|
|
$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($f,split(',',$line)); }
|
|
elsif ($mnemonic) { $line = $c.$mnemonic.$f."\t".$line; }
|
|
}
|
|
|
|
print $line if ($line);
|
|
print "\n";
|
|
}
|
|
|
|
close STDOUT;
|