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Diffstat (limited to 'scaf/compiler/scafc.pl')
| -rwxr-xr-x | scaf/compiler/scafc.pl | 269 |
1 files changed, 0 insertions, 269 deletions
diff --git a/scaf/compiler/scafc.pl b/scaf/compiler/scafc.pl deleted file mode 100755 index ee6b969..0000000 --- a/scaf/compiler/scafc.pl +++ /dev/null @@ -1,269 +0,0 @@ -#!/usr/bin/perl - -# Pure Data Packet - scafc: scaf compiler. -# Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org> -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -# - -# set this if you want to enable/disable optimizing - -$optimize = 1; - - -# this parses a single scaf line -# it is not very intelligent. only looks for 1 def on a line -# todo: change later so it can read multiple lines - - -sub remove_illegal_characters { - my $line = shift; - $$line =~ s/\+/_PLUS_/g; - $$line =~ s/-/_MINUS_/g; - $$line =~ s/\@/_AT_/g; - $$line =~ s/:/_COLON_/g; - $$line =~ s/\?/_QMARK_/g; - $$line =~ s/<</_SHIFT_/g; - $$line =~ s/</_ST_/g; - $$line =~ s/>/_GT_/g; - $$line =~ s/=/_EQ_/g; - $$line =~ s/\(/_OPEN_/g; - $$line =~ s/\)/_CLOSE_/g; -} - -sub parse_scaf_line { - my $word, $def, $sub; - shift; - - # this transforms the source into a parsed assembly like form - # a word label: "<word>:<ret>" - # a word definition line "<tab><word><ret>" - # last def = <ret><ret> - - # dont process if line doesn't have a def - - # first remove comments - s/\(\s+(\S+\s+)*?\)//g; - - if (m/:\s+/){ - - # separate word and definition - m/:\s+(\S+)\s+(.*)/; - $word = $1; - $def = $2; - - # remove illegal characters; - remove_illegal_characters \$word; - remove_illegal_characters \$def; - - # format definition in asm style - $def =~ s/(\S+)(\s*)/\t$1\n/g; - - # replace ; by r - $def =~ s/\s+;\s*/\n\tr\n/; - - # put word: def into one string - $sub = "$word:\n$def\n"; - - # debug - #$sub =~ s/\t/<tab>/g; - #$sub =~ s/\n/<ret>\n/g; - #print "$sub"; - - return $sub; - - } - -}; - - - -# load and parse scaf source file -sub load_source { - my $filename = shift; - open(SOURCE, $filename) or die "Can't locate source module $filename\n"; - my @parsedsource; - while (<SOURCE>){ - my $sub = parse_scaf_line $_; - if ($sub) { - push @parsedsource, ($sub); - } - - } - close(SOURCE); - return @parsedsource; - -} - -# this routine parses the optimization rules -sub load_optim { - my $filename = shift; - open(OPTIM, $filename) or die "Can't locate optimization rule file $filename\n"; - my @parsedoptim; - while (<OPTIM>){ - unless (m/\A\#/){ - - if (m/\"\s*(.*?)\s*\".*?\"\s*(.*?)\s*\"/) - { - my $source = $1; - my $dest = $2; - - $source =~ s/\s+/\n\t/; - $dest =~ s/\s+/\n\t/; - $source = "\t$source\n"; - $dest = "\t$dest\n"; - - remove_illegal_characters \$source; - remove_illegal_characters \$dest; - - push @parsedoptim, ("$source:$dest"); - } - } - } - close(OPTIM); - - return @parsedoptim; - - -} - - - -# inline one parsed source's definitions into another parsed source's -sub inline_defs { - my $dest = shift; - my $source = shift; - - #print @$dest; - #print @$source; - - - # loop over file with inline defs - foreach (@$source) { - #print "<SUB>$_</SUB>\n"; - m/(\S+):\n(.*)\tr\n/s; - - my $def = "\t$1\n"; - my $body = $2; - - #print "<DEF>$def</DEF>\n"; - #print "<BODY>$body</BODY>\n"; - - foreach (@$dest) { - s/$def/$body/g; - } - - } - -} - -# this changes <WORD> to c <WORD> or j <WORD> all defined words -# the undefined words are supposed to be asm macros -sub call_defs { - my $dest = shift; - - foreach (@$dest){ - m/(\S+):\n/s; - my $word = $1; - foreach (@$dest){ - s/\t$word\n\tr\n/\tj $word\n/sg; - s/\t$word\n/\tc $word\n/sg; - } - } -} - -# substitue word sequences in dest using optim table -sub subst_optim { - my $dest = shift; - my $optim = shift; - foreach (@$optim){ - m/(.*?):(.*)/s; - my $key = $1; - my $subst = $2; - - foreach (@$dest){ - s/$key/$subst/sg; - } - } -} - -# add directives to produce global symbols -# global symbols need to start with carule_ -sub global_syms { - my $source = shift; - foreach (@$source){ - s/rule_(\S+):\n/.globl\trule_$1\n.type\trule_$1,\@function\nrule_$1:\n/sg; - } -} - -# create an array with names for bookkeeping -sub name_array { - my @namearray; - my $source = shift; - push @namearray, (".globl rulenames\nrulenames:\n"); - foreach (@$source){ - if (m/rule_(\S+):/s){ - push @namearray, (".asciz\t\"$1\"\n"); - } - } - push @namearray, (".byte\t0\n"); - return @namearray; - -} - -# main program body - -$dir="."; - -$source = "-"; - - -# parse command line -foreach (@ARGV){ - if (m/-I(.*)/) { - $dir = $1; - } - else { - $source = $_; - } -} - -$kernel = "$dir/kernel.scaf"; -$macro = "$dir/scafmacro.s"; -$rules = "$dir/optim.rules"; - - - -# load files -@psource = load_source $source; -@pkernel = load_source $kernel; -@poptim = load_optim $rules; - - -# substitute kernel defs in source -if ($optimize) {subst_optim \@psource, \@poptim;} -inline_defs \@psource, \@pkernel; - -if ($optimize) {subst_optim \@psource, \@poptim;} - -call_defs \@psource; -global_syms \@psource; -@pnames = name_array \@psource; - -# print out asm file -print ".include \"$macro\"\n\n"; -print @psource; -print @pnames; - |