1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
#!/usr/bin/perl
# $Id$
#
# 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]+)$/) {
$nregs = $3-$2+1;
$reg = $1.$2;
} else {
$nregs = 1;
}
while ($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
$x86regno++;
if ($reg =~ /^(.*[^0-9])([0-9]+)$/) {
$reg = sprintf("%s%u", $1, $2+1);
}
}
}
($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";
$expr_regs = 1;
printf "#define EXPR_REG_START %d\n", $expr_regs;
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 = ',';
$expr_regs++;
}
print " REG_ENUM_LIMIT\n";
print "};\n\n";
printf "#define EXPR_REG_END %d\n", $expr_regs-1;
foreach $reg ( sort(keys(%regs)) ) {
printf "#define %-15s %2d\n", "REG_NUM_\U${reg}", $regvals{$reg};
}
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 int32_t 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)) ) {
printf ",\n %2d", $regvals{$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 rd_%-8s[] = {", $class;
@foo = @{$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";
}
} else {
die "$0: Unknown output format\n";
}
|
