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authorTom Schouten <doelie@users.sourceforge.net>2003-02-28 09:57:32 +0000
committerTom Schouten <doelie@users.sourceforge.net>2003-02-28 09:57:32 +0000
commitfa3fa16330b07b13c8d11f1c83f090c328247547 (patch)
tree14920edb0f4248cd8f0953caa88644498ff12602 /scaf/system/scafc.pl
parent240da8f9db69b36778b5bc90701968935ff82413 (diff)
pdp scaf
svn path=/trunk/externals/pdp/; revision=443
Diffstat (limited to 'scaf/system/scafc.pl')
-rwxr-xr-xscaf/system/scafc.pl269
1 files changed, 0 insertions, 269 deletions
diff --git a/scaf/system/scafc.pl b/scaf/system/scafc.pl
deleted file mode 100755
index ee6b969..0000000
--- a/scaf/system/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;
-