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authorJinkun Jang <jinkun.jang@samsung.com>2013-03-12 15:14:36 +0900
committerJinkun Jang <jinkun.jang@samsung.com>2013-03-12 15:14:36 +0900
commit993d65531741fccf26fc10fc5789a5c9fca8c5ae (patch)
tree996be9095a97ff2aac0d98963b6044d47a0ec60c /regs.pl
parent65c26d26fb72cec0d43d199c72ed27513d17f4c9 (diff)
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Diffstat (limited to 'regs.pl')
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diff --git a/regs.pl b/regs.pl
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index 0000000..82c4829
--- /dev/null
+++ b/regs.pl
@@ -0,0 +1,204 @@
+#!/usr/bin/perl
+## --------------------------------------------------------------------------
+##
+## Copyright 1996-2009 The NASM Authors - All Rights Reserved
+## See the file AUTHORS included with the NASM distribution for
+## the specific copyright holders.
+##
+## Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following
+## conditions are met:
+##
+## * Redistributions of source code must retain the above copyright
+## notice, this list of conditions and the following disclaimer.
+## * Redistributions in binary form must reproduce the above
+## copyright notice, this list of conditions and the following
+## disclaimer in the documentation and/or other materials provided
+## with the distribution.
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+## CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+## INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+## MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+## DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+## CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+## NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+## LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+## CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+## OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+## EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+##
+## --------------------------------------------------------------------------
+
+#
+# Read regs.dat and output regs.h and regs.c (included in names.c)
+#
+
+$nline = 0;
+
+sub toint($) {
+ my($v) = @_;
+
+ return ($v =~ /^0/) ? oct $v : $v+0;
+}
+
+sub process_line($) {
+ my($line) = @_;
+ my @v;
+
+ if ( $line !~ /^\s*(\S+)\s*(\S+)\s*(\S+)\s*([0-9]+)$/i ) {
+ die "regs.dat:$nline: invalid input\n";
+ }
+ $reg = $1;
+ $aclass = $2;
+ $dclasses = $3;
+ $x86regno = toint($4);
+
+ if ($reg =~ /^(.*[^0-9])([0-9]+)\-([0-9]+)(|[^0-9].*)$/) {
+ $nregs = $3-$2+1;
+ $reg = $1.$2.$4;
+ $reg_nr = $2;
+ $reg_prefix = $1;
+ $reg_suffix = $4;
+ } else {
+ $nregs = 1;
+ undef $reg_prefix, $reg_suffix;
+ }
+
+ while ($nregs--) {
+ $regs{$reg} = $aclass;
+ $regvals{$reg} = $x86regno;
+
+ foreach $dclass (split(/,/, $dclasses)) {
+ if ( !defined($disclass{$dclass}) ) {
+ $disclass{$dclass} = [];
+ }
+
+ $disclass{$dclass}->[$x86regno] = $reg;
+ }
+
+ # Compute the next register, if any
+ if (defined($reg_prefix)) {
+ $x86regno++;
+ $reg_nr++;
+ $reg = sprintf("%s%u%s", $reg_prefix, $reg_nr, $reg_suffix);
+ } else {
+ # Not a dashed sequence
+ die if ($nregs);
+ }
+ }
+}
+
+($fmt, $file) = @ARGV;
+
+%regs = ();
+%regvals = ();
+%disclass = ();
+open(REGS, "< ${file}") or die "$0: Cannot open $file\n";
+while ( defined($line = <REGS>) ) {
+ $nline++;
+
+ chomp $line;
+ $line =~ s/\s*(\#.*|)$//;
+
+ next if ( $line eq '' );
+
+ process_line($line);
+}
+close(REGS);
+
+if ( $fmt eq 'h' ) {
+ # Output regs.h
+ print "/* automatically generated from $file - do not edit */\n\n";
+ print "#ifndef NASM_REGS_H\n";
+ print "#define NASM_REGS_H\n\n";
+
+ $expr_regs = 1;
+ printf "#define EXPR_REG_START %d\n\n", $expr_regs;
+ print "enum reg_enum {\n";
+ # Unfortunately the code uses both 0 and -1 as "no register" in
+ # different places...
+ print " R_zero = 0,\n";
+ print " R_none = -1,\n";
+ $attach = ' = EXPR_REG_START'; # EXPR_REG_START == 1
+ foreach $reg ( sort(keys(%regs)) ) {
+ print " R_\U${reg}\E${attach},\n";
+ $attach = '';
+ $expr_regs++;
+ }
+ print " REG_ENUM_LIMIT\n";
+ print "};\n\n";
+ printf "#define EXPR_REG_END %d\n\n", $expr_regs-1;
+ foreach $reg ( sort(keys(%regs)) ) {
+ printf "#define %-15s %2d\n", "REG_NUM_\U${reg}", $regvals{$reg};
+ }
+ print "\n\n#endif /* NASM_REGS_H */\n";
+} elsif ( $fmt eq 'c' ) {
+ # Output regs.c
+ print "/* automatically generated from $file - do not edit */\n\n";
+ print "#include \"tables.h\"\n\n";
+ print "const char * const nasm_reg_names[] = "; $ch = '{';
+ # This one has no dummy entry for 0
+ foreach $reg ( sort(keys(%regs)) ) {
+ print "$ch\n \"${reg}\"";
+ $ch = ',';
+ }
+ print "\n};\n";
+} elsif ( $fmt eq 'fc' ) {
+ # Output regflags.c
+ print "/* automatically generated from $file - do not edit */\n\n";
+ print "#include \"tables.h\"\n";
+ print "#include \"nasm.h\"\n\n";
+ print "const opflags_t nasm_reg_flags[] = {\n";
+ printf " 0,\n"; # Dummy entry for 0
+ foreach $reg ( sort(keys(%regs)) ) {
+ # Print the class of the register
+ printf " %-15s /* %-5s */\n",
+ $regs{$reg}.',', $reg;
+ }
+ print "};\n";
+} elsif ( $fmt eq 'vc' ) {
+ # Output regvals.c
+ print "/* automatically generated from $file - do not edit */\n\n";
+ print "#include \"tables.h\"\n\n";
+ print "const int nasm_regvals[] = {\n";
+ print " -1,\n"; # Dummy entry for 0
+ foreach $reg ( sort(keys(%regs)) ) {
+ # Print the x86 value of the register
+ printf " %2d, /* %-5s */\n", $regvals{$reg}, $reg;
+ }
+ print "};\n";
+} elsif ( $fmt eq 'dc' ) {
+ # Output regdis.c
+ print "/* automatically generated from $file - do not edit */\n\n";
+ print "#include \"regdis.h\"\n\n";
+ foreach $class ( sort(keys(%disclass)) ) {
+ printf "const enum reg_enum nasm_rd_%-8s[%2d] = {",
+ $class, scalar @{$disclass{$class}};
+ @foo = @{$disclass{$class}};
+ @bar = ();
+ for ( $i = 0 ; $i < scalar(@foo) ; $i++ ) {
+ if (defined($foo[$i])) {
+ push(@bar, "R_\U$foo[$i]\E");
+ } else {
+ die "$0: No register name for class $class, value $i\n";
+ }
+ }
+ print join(',', @bar), "};\n";
+ }
+} elsif ( $fmt eq 'dh' ) {
+ # Output regdis.h
+ print "/* automatically generated from $file - do not edit */\n\n";
+ print "#ifndef NASM_REGDIS_H\n";
+ print "#define NASM_REGDIS_H\n\n";
+ print "#include \"regs.h\"\n\n";
+ foreach $class ( sort(keys(%disclass)) ) {
+ printf "extern const enum reg_enum nasm_rd_%-8s[%2d];\n",
+ $class, scalar @{$disclass{$class}};
+ }
+ print "\n#endif /* NASM_REGDIS_H */\n";
+} else {
+ die "$0: Unknown output format\n";
+}