sbsv1/abld/e32util/armasm2as.pl
changeset 599 fa7a3cc6effd
child 626 ac03b93ca9c4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sbsv1/abld/e32util/armasm2as.pl	Fri Jun 25 17:29:25 2010 +0800
@@ -0,0 +1,453 @@
+# Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
+# All rights reserved.
+# This component and the accompanying materials are made available
+# under the terms of "Eclipse Public License v1.0"
+# which accompanies this distribution, and is available
+# at the URL "http://www.eclipse.org/legal/epl-v10.html".
+#
+# Initial Contributors:
+# Nokia Corporation - initial contribution.
+#
+# Contributors:
+#
+# Description:
+# e32toolp\e32util\armasm2as.pl
+# Convert an ARMASM assembler source or include file to AS format
+# Syntax:
+# perl armasm2as.pl <input> <output>
+# 
+#
+
+if (scalar(@ARGV)!=2) {
+	die "perl armasm2as.pl <input> <output>\n";
+}
+my ($infile, $outfile) = @ARGV;
+open IN, $infile or die "Can't open $infile for input\n";
+my $gccfile;
+my @input;
+while (<IN>) {
+	push @input, $_;
+	next if defined($gccfile);
+	next if (/^\s*$/);
+	if (/^\s*\@/) {
+		$gccfile = 1;	# If first non-blank line starts with @, assume already in GCC format
+	} else {
+		$gccfile = 0;
+	}
+}
+close IN;
+my @output;
+my $outref = \@output;
+if ($gccfile) {
+	$outref = \@input;
+} else {
+	process(\@input, \@output);
+}
+open OUT, ">$outfile" or die "Can't open $outfile for write\n";
+print OUT @$outref;
+close OUT;
+
+
+
+sub process($$) {
+	my $level=0;
+	my @block;
+	my ($inref, $outref) = @_;
+	foreach $line (@$inref) {
+		$line=~s/\s*$//;
+		my $comment;
+		if ($line =~ /\;(.*)$/o) {
+			$comment = $1;
+			$line =~ s/\;(.*)$//o;
+			if ($line =~ /^\s*$/o and $level==0) {
+				push @$outref, "$line\@$comment\n";
+				next;
+			}
+			$comment = "\t\@$comment";
+		}
+		if ($line =~ /^\s+PRESERVE8/) {
+			next;
+		}
+		if ($level == 1) {
+			if ($line =~ /^\s+MEND/i) {
+				process_macro(\@block, $outref);
+				$level = 0;
+			} else {
+				push @block, $line;
+			}
+			next;
+		} elsif ($level == 0) {
+			if ($line =~ /^\s+MACRO\s*$/i) {
+				@block = ();
+				$level = 1;
+				next;
+			}
+		}
+		if ($line =~ /^\s+GBLL\s+(\S+)/i) {
+			push @$outref, "\t.set\t$1, 0$comment\n";
+			next;
+		}
+		if ($line =~ /^\s+GBLA\s+(\S+)/i) {
+			push @$outref, "\t.set\t$1, 0$comment\n";
+			next;
+		}
+		if ($line =~ /^\s+INCLUDE\s+(\S+)/i) {
+			my $arg = $1;
+			if ($arg =~ /(\w+)\.inc/io) {
+				$arg = $1.'.ginc';
+			}
+			push @$outref, "\t.include\t\"$arg\"$comment\n";
+			next;
+		}
+		if ($line =~ /^\s+IMPORT\s+(\S+)/i) {
+			push @$outref, "\t.extern\t$1$comment\n";
+			next;
+		}
+		if ($line =~ /^\s+EXPORT\s+(\S+)/i) {
+			push @$outref, "\t.global\t$1$comment\n";
+			next;
+		}
+		if ($line =~ /^\s+ELSE/i or $line =~ /^\s+\|/i ) {
+			push @$outref, "\t.else$comment\n";
+			next;
+		}
+		if ($line =~ /^\s+ENDIF/i or $line =~ /^\s+\]/i) {
+			push @$outref, "\t.endif$comment\n";
+			next;
+		}
+		if ($line =~ /^\s+LTORG/i) {
+			push @$outref, "\t.ltorg$comment\n";
+			next;
+		}
+		if ($line =~ /^\s+END$/i) {
+			next;
+		}
+		if ($line =~ /^\s+\!\s*(\d+)\,\s*(.*?)$/) {
+			my $msg = $2;
+			push @$outref, "\t.print $msg\n\t.err$comment\n";
+			next;
+		}
+		if ($line =~ /^\s+INIT_LOGICAL_SYMBOL\s+(\w+)(.*?)$/) {
+			process_init_logical_symbol($1, $2, $outref, $comment);
+			next;
+		}
+		if ($line =~ /^\s+INIT_NUMERIC_SYMBOL\s+(\w+)\s*\,\s*(.*?)$/) {
+			process_init_numeric_symbol($1, $2, $outref, $comment);
+			next;
+		}
+		if ($line =~ /^\s+AREA\s+(.*?)$/) {
+			process_area($1, $outref, $comment);
+			next;
+		}
+		if ($line =~ /^\s+\%\s+(.*?)$/) {
+			my $expr = process_numeric_expr($1, $outref);
+			push @$outref, "\t.space $expr$comment\n";
+			next;
+		}
+		if ($line =~ /^\s+ALIGN\s*(.*?)$/) {
+			process_align($1, $outref, $comment);
+			next;
+		}
+
+		# Strip label if there is one
+		my $label;
+		if ($line =~ /^(\S+)\s*(.*?)$/) {
+			$label = $1;
+			$line = $2;
+		} else {
+			$line =~ s/^\s*//;
+		}
+		if ($line =~ /^SETL\s+(\S+)/i) {
+			my $val = $1;
+			my $expr = process_logical_expr($val, $outref);
+			push @$outref, "\t.set\t$label,$expr$comment\n";
+			next;
+		}
+		if ($line =~ /^SETA\s+(.*?)$/i) {
+			my $val = $1;
+			my $expr = process_numeric_expr($val, $outref);
+			push @$outref, "\t.set\t$label,$expr$comment\n";
+			next;
+		}
+		if ($line =~ /^(EQU|\*)\s+(.*?)$/i) {
+			my $val = $2;
+			my $expr = process_numeric_expr($val, $outref);
+			push @$outref, "\t.equ\t$label,$expr$comment\n";
+			next;
+		}
+		if ($line =~ /^(if|\[)\s+(.*?)$/i) {
+			my $cond = $2;
+			if ($cond =~ /^\s*(\:LNOT\:)?\s*\:DEF\:\s*(.*?)$/i) {
+				my $n = $1;
+				my $sym = $2;
+				if ($sym =~ /^(\w|\\|\:)+$/) {
+					if (uc($n) eq ':LNOT:') {
+						push @$outref, "\t.ifndef\t$sym$comment\n";
+					} else {
+						push @$outref, "\t.ifdef\t$sym$comment\n";
+					}
+					next;
+				}
+			}
+			my $expr = process_logical_expr($cond, $outref);
+			push @$outref, "\t.if $expr$comment\n";
+			next;
+		}
+		if ($line =~ /^(\=|DCB)\s*(.*?)$/) {
+			process_dcb($label, $2, $outref, $comment);
+			next;
+		}
+		if ($line =~ /^DCW\s*(.*?)$/) {
+			process_dcw($label, $1, $outref, $comment);
+			next;
+		}
+		if ($line =~ /^DCD\s*(.*?)$/) {
+			process_dcd($label, $1, $outref, $comment);
+			next;
+		}
+		if ($line =~ /^ROUT\s*$/) {
+			$line = '';
+		}
+		if ($line =~ /^(\w+)\s+\%(\w+)\s*$/o) {
+			# ARMASM local label reference
+			my $inst = $1;
+			my $llab = $2;
+			if ($llab =~ /F\w?(\d+)/o) {
+				$line = "$inst $1f";
+			} elsif ($llab =~ /B\w?(\d+)/o) {
+				$line = "$inst $1b";
+			} else {
+				die "Can't determine local label direction\n";
+			}
+		}
+		if ($line =~ /^(\w+)\s+(\w+)\s*\,\s*\%(\w+)\s*$/o) {
+			# ARMASM local label reference
+			my $inst = $1;
+			my $op1 = $2;
+			my $llab = $3;
+			if ($llab =~ /F\w?(\d+)/o) {
+				$line = "$inst $op1\, $1f";
+			} elsif ($llab =~ /B\w?(\d+)/o) {
+				$line = "$inst $op1\, $1b";
+			} else {
+				die "Can't determine local label direction\n";
+			}
+		}
+
+		$line = process_numeric_expr($line, $outref);
+		if (defined($label)) {
+			push @$outref, "$label\:\t$line$comment\n";
+		} else {
+			push @$outref, "\t$line$comment\n";
+		}
+	}
+}
+
+
+sub process_macro($$) {
+	my ($inref, $outref) = @_;
+	my $line;
+	while(1) {
+		$line = shift @$inref;
+		last if ($line !~ /^\s*$/);
+	}
+	unless ($line =~ /^\s+(\w+)\s*(.*?)$/) {
+		die "Bad macro - no name\n";
+	}
+	my $macro_name = $1;
+	if ($macro_name eq 'INIT_LOGICAL_SYMBOL' or $macro_name eq 'INIT_NUMERIC_SYMBOL') {
+		return;
+	}
+	$line = $2;
+	my @args = split ( '\s*,\s*', $line );
+	foreach (@args) {
+		die "Bad macro argument name\n" unless (/^\$\w+$/);
+		s/^\$//;
+	}
+	my $ev = '';
+	foreach $arg (@args) {
+		$ev.="s/\\\$$arg(\\W\|\$)/\\\\$arg\$1/go;";
+	}
+	foreach (@$inref) {
+		eval $ev;
+	}
+	push @$outref, "\t.macro $macro_name ".join(',',@args)."\n";
+	process($inref, $outref);
+	push @$outref, "\t.endm\n";
+}
+
+
+sub process_logical_expr($$) {
+	my ($val, $outref) = @_;
+	$val = process_numeric_expr($val, $outref);
+	$val =~ s/\<\=/________LE________/g;	# protect <= and >= during expansion of =
+	$val =~ s/\>\=/________GE________/g;
+	$val =~ s/\=/\=\=/g;					# equality operator is = on ARMASM, == on AS
+	$val =~ s/________LE________/\<\=/g;
+	$val =~ s/________GE________/\>\=/g;
+	$val =~ s/\{TRUE\}/(1)/g;
+	$val =~ s/\{FALSE\}/(0)/g;
+
+	my @lops = split( /(\s*\:LAND\:\s*|\s*\:LOR\:\s*|\s*\:LNOT\:\s*|\s*\:DEF\:\s*)/, $val );
+	foreach (@lops) {
+		s/\s*\:LAND\:\s*/\:LAND\:/go;
+		s/\s*\:LOR\:\s*/\:LOR\:/go;
+		s/\s*\:LNOT\:\s*/\:LNOT\:/go;
+		s/\s*\:DEF\:\s*/\:DEF\:/go;
+	}
+	my @lops2;
+	while (scalar (@lops)) {
+		my $x = shift @lops;
+		if ($x eq ':DEF:') {
+			my $sym = shift @lops;
+			$sym =~ s/^\s*//;
+			$sym =~ s/\s*$//;
+			if ($sym =~ /^(\w|\$|\\)+$/) {
+				push @$outref, "\t.ifdef $sym\n\t.set __defined__$sym, 1\n\t.else\n\t.set __defined__$sym, 0\n\t.endif\n";
+				push @lops2, " __defined__$sym ";
+			} else {
+				die "Bad :DEF: operand\n";
+			}
+		} elsif ($x eq ':LAND:') {
+			push @lops2, ' && ';
+		} elsif ($x eq ':LOR:') {
+			push @lops2, ' || ';
+		} else {
+			push @lops2, $x;
+		}
+	}
+	my @lops3;
+	while (scalar (@lops2)) {
+		my $x = shift @lops2;
+		if ($x eq ':LNOT:') {
+			my $operand;
+			while (1) {
+				$operand = shift @lops2;
+				last if ($operand !~ /^\s*$/);
+			}
+			push @lops3, "(0==($operand))";
+		} else {
+			push @lops3, $x;
+		}
+	}
+	return join('',@lops3);
+}
+
+sub process_numeric_expr($$) {
+	my ($val, $outref) = @_;
+	$val =~ s/\&/0x/g;			# ARMASM accepts hex numbers starting with & or 0x, AS only accepts 0x
+	$val =~ s/(\W|^)2_([0|1]+)(\W|$)/$1 0b$2$3/g;	# Binary numbers start with 2_ on ARMASM, 0b on AS
+	$val =~ s/\:AND\:/\&/g;
+	$val =~ s/\:OR\:/\|/g;
+	$val =~ s/\:SHL\:/\<\</g;
+	$val =~ s/\:SHR\:/\>\>/g;
+	return $val;
+}
+
+sub process_init_logical_symbol($$$$) {
+	my ($name, $rest, $outref, $comment) = @_;
+	my $counter;
+	if ($rest =~ /^\s*\,\s*(\w+)\s*$/) {
+		$counter = $1;
+	} elsif ($rest !~ /^\s*$/) {
+		die "Bad INIT_LOGICAL_SYMBOL\n";
+	}
+	push @$outref, "\t.ifndef $name$comment\n\t.set $name, 0\n\t.else\n\t.set $name, 1\n";
+	if ($counter) {
+		push @$outref, "\t.set $counter, $counter \+ 1\n";
+	}
+	push @$outref, "\t.endif\n";
+}
+
+sub process_init_numeric_symbol($$$$) {
+	my ($name, $value, $outref, $comment) = @_;
+	my $expr = process_numeric_expr($value, $outref);
+	push @$outref, "\t.ifndef $name$comment\n\t.set $name, $expr\n\t.endif\n";
+}
+
+sub process_area($$$) {
+	my ($line, $outref, $comment) = @_;
+	my @args = split(',',$line);
+	my $align = 0;
+	foreach (@args) {
+		if (/^\s*ALIGN\s*\=\s*(\d+)\s*$/) {
+			$align = $1;
+		}
+	}
+	push @$outref, "\t.text$comment\n\t.p2align $align\n";
+}
+
+sub process_align($$$) {
+	my ($line, $outref, $comment) = @_;
+	if ($line =~ /^\s*$/o) {
+		push @$outref, "\t.align$comment\n";
+	} else {
+		push @$outref, "\t.balign $line$comment\n";
+	}
+}
+
+sub process_dcb($$$$) {
+	my ($label, $args, $outref, $comment) = @_;
+	if (defined($label)) {
+		push @$outref, "$label\:";
+	}
+	while ($args !~ /^\s*$/) {
+		my $arg;
+		$args =~ s/^\s*//;
+		if ($args =~ /^\"/) {
+			$args =~ s/\\\"/________ESCAPED_QUOTE________/go;
+			$args =~ /\"(.*?)\"\s*(.*?)$/o or die "Unterminated string literal\n";
+			$arg = $1;
+			$args = $2;
+			$arg =~ s/________ESCAPED_QUOTE________/\\\"/go;
+			push @$outref, "\t.ascii \"$arg\"$comment\n";
+			undef $comment;
+			last if ($args !~ /\s*\,(.*?)$/o);
+			$args = $1;
+		} else {
+			$args =~ /(.*?)\s*(\,|$)(.*?)$/o;
+			$arg = $1;
+			$args = $3;
+			my $expr = process_numeric_expr($arg, $outref);
+			push @$outref, "\t.byte $expr$comment\n";
+			undef $comment;
+		}
+	}
+}
+
+sub process_dcw($$$$) {
+	my ($label, $args, $outref, $comment) = @_;
+	if (defined($label)) {
+		push @$outref, "$label\:";
+	}
+	while ($args !~ /^\s*$/) {
+		my $arg;
+		$args =~ s/^\s*//;
+		$args =~ /(.*?)\s*(\,|$)(.*?)$/o;
+		$arg = $1;
+		$args = $3;
+		my $expr = process_numeric_expr($arg, $outref);
+		push @$outref, "\t.hword $expr$comment\n";
+		undef $comment;
+	}
+}
+
+sub process_dcd($$$$) {
+	my ($label, $args, $outref, $comment) = @_;
+	if (defined($label)) {
+		push @$outref, "$label\:";
+	}
+	while ($args !~ /^\s*$/) {
+		my $arg;
+		$args =~ s/^\s*//;
+		$args =~ /(.*?)\s*(\,|$)(.*?)$/o;
+		$arg = $1;
+		$args = $3;
+		my $expr = process_numeric_expr($arg, $outref);
+		push @$outref, "\t.word $expr$comment\n";
+		undef $comment;
+	}
+}
+
+
+