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author | H. Peter Anvin <hpa@zytor.com> | 2002-06-06 02:41:20 +0000 |
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committer | H. Peter Anvin <hpa@zytor.com> | 2002-06-06 02:41:20 +0000 |
commit | 232badbbbcbc14e53f319d52211061424ee6b1e6 (patch) | |
tree | dfcac3299276e7c57b3449cc12f6b7ee2acb8cd1 /regs.pl | |
parent | cda94c77f23d18dd4a97dc5aa308cf8c0f6038c4 (diff) | |
download | nasm-232badbbbcbc14e53f319d52211061424ee6b1e6.tar.gz nasm-232badbbbcbc14e53f319d52211061424ee6b1e6.tar.bz2 nasm-232badbbbcbc14e53f319d52211061424ee6b1e6.zip |
This is the "megapatch":
a) Automatically generate dependencies for all Makefiles;
b) Move register definitions to a separate .dat file;
c) Add support for "unimplemented but there in theory" registers.
Diffstat (limited to 'regs.pl')
-rwxr-xr-x | regs.pl | 108 |
1 files changed, 108 insertions, 0 deletions
@@ -0,0 +1,108 @@ +#!/usr/bin/perl +# $Id$ +# +# Read regs.dat and output regs.h and regs.c (included in names.c) +# + +$nline = 0; + +sub process_line($) { + my($line) = @_; + my @v; + + if ( $line !~ /^\s*(\S+)\s*(\S+)\s*(\S+)\s*([0-7])\s*$/ ) { + die "regs.dat:$nline: invalid input\n"; + } + $reg = $1; + $aclass = $2; + $dclass = $3; + $regval = $4; + + $regs{$reg} = $aclass; + $regvals{$reg} = $regval; + + if ( !defined($disclass{$dclass}) ) { + $disclass{$dclass} = [(undef) x 8]; + } + + $disclass{$dclass}->[$regval] = $reg; +} + +($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 '' ); + + if ( $line =~ /\*/ ) { + for ( $i = 0 ; $i < 8 ; $i++ ) { + ($xline = $line) =~ s/\*/$i/g; + process_line($xline); + } + } else { + process_line($line); + } +} +close(REGS); + +if ( $fmt eq 'h' ) { + # Output regs.h + print "/* automatically generated from $file - do not edit */\n"; + print "enum reg_enum {\n"; + $attach = ' = EXPR_REG_START'; # EXPR_REG_START == 1 + foreach $reg ( sort(keys(%regs)) ) { + print " R_\U${reg}\E${attach},\n"; + $attach = ''; $ch = ','; + } + print " REG_ENUM_LIMIT\n"; + print "};\n"; +} elsif ( $fmt eq 'c' ) { + # Output regs.c + print "/* automatically generated from $file - do not edit */\n"; + print "static const char *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"; + print "static const long reg_flags[] = {\n"; + print " 0"; # Dummy entry for 0 + foreach $reg ( sort(keys(%regs)) ) { + print ",\n ", $regs{$reg}; # Print the class of the register + } + print "\n};\n"; +} elsif ( $fmt eq 'vc' ) { + # Output regvals.c + print "/* automatically generated from $file - do not edit */\n"; + print "static const int regvals[] = {\n"; + print " -1"; # Dummy entry for 0 + foreach $reg ( sort(keys(%regs)) ) { + print ",\n ", $regvals{$reg}; # Print the regval of the register + } + print "\n};\n"; +} elsif ( $fmt eq 'dc' ) { + # Output regdis.c + print "/* automatically generated from $file - do not edit */\n"; + foreach $class ( sort(keys(%disclass)) ) { + printf "static const int %-8s[] = {", $class; + @foo = @{$disclass{$class}}; + for ( $i = 0 ; $i < scalar(@foo) ; $i++ ) { + $foo[$i] = defined($foo[$i]) ? "R_\U$foo[$i]\E" : '0'; + } + print join(',', @foo), "};\n"; + } +} else { + die "$0: Unknown output format\n"; +} |