| 1 | char *xxxvers[] = "\nFORTRAN 77 PASS 1, VERSION 2.00, 7 JANUARY 1980\n"; |
| 2 | |
| 3 | #include "defs" |
| 4 | #include <signal.h> |
| 5 | |
| 6 | #ifdef SDB |
| 7 | # include <a.out.h> |
| 8 | #endif |
| 9 | |
| 10 | |
| 11 | main(argc, argv) |
| 12 | int argc; |
| 13 | char **argv; |
| 14 | { |
| 15 | char *s; |
| 16 | int k, retcode, *ip; |
| 17 | FILEP opf(); |
| 18 | int flovflo(); |
| 19 | |
| 20 | #define DONE(c) { retcode = c; goto finis; } |
| 21 | |
| 22 | signal(SIGFPE, flovflo); /* catch overflows */ |
| 23 | |
| 24 | #if HERE == PDP11 |
| 25 | ldfps(01200); /* trap on overflow */ |
| 26 | #endif |
| 27 | |
| 28 | |
| 29 | |
| 30 | --argc; |
| 31 | ++argv; |
| 32 | |
| 33 | while(argc>0 && argv[0][0]=='-') |
| 34 | { |
| 35 | for(s = argv[0]+1 ; *s ; ++s) switch(*s) |
| 36 | { |
| 37 | case 'w': |
| 38 | if(s[1]=='6' && s[2]=='6') |
| 39 | { |
| 40 | ftn66flag = YES; |
| 41 | s += 2; |
| 42 | } |
| 43 | else |
| 44 | nowarnflag = YES; |
| 45 | break; |
| 46 | |
| 47 | case 'U': |
| 48 | shiftcase = NO; |
| 49 | break; |
| 50 | |
| 51 | case 'u': |
| 52 | undeftype = YES; |
| 53 | break; |
| 54 | |
| 55 | case 'O': |
| 56 | optimflag = YES; |
| 57 | if( isdigit(s[1]) ) |
| 58 | { |
| 59 | k = *++s - '0'; |
| 60 | if(k > MAXREGVAR) |
| 61 | { |
| 62 | warn1("-O%d: too many register variables", k); |
| 63 | maxregvar = MAXREGVAR; |
| 64 | } |
| 65 | else |
| 66 | maxregvar = k; |
| 67 | } |
| 68 | break; |
| 69 | |
| 70 | case 'd': |
| 71 | debugflag = YES; |
| 72 | break; |
| 73 | |
| 74 | case 'p': |
| 75 | profileflag = YES; |
| 76 | break; |
| 77 | |
| 78 | case 'C': |
| 79 | checksubs = YES; |
| 80 | break; |
| 81 | |
| 82 | case '6': |
| 83 | no66flag = YES; |
| 84 | noextflag = YES; |
| 85 | break; |
| 86 | |
| 87 | case '1': |
| 88 | onetripflag = YES; |
| 89 | break; |
| 90 | |
| 91 | #ifdef SDB |
| 92 | case 'g': |
| 93 | sdbflag = YES; |
| 94 | break; |
| 95 | #endif |
| 96 | |
| 97 | case 'N': |
| 98 | switch(*++s) |
| 99 | { |
| 100 | case 'q': |
| 101 | ip = &maxequiv; goto getnum; |
| 102 | case 'x': |
| 103 | ip = &maxext; goto getnum; |
| 104 | case 's': |
| 105 | ip = &maxstno; goto getnum; |
| 106 | case 'c': |
| 107 | ip = &maxctl; goto getnum; |
| 108 | case 'n': |
| 109 | ip = &maxhash; goto getnum; |
| 110 | |
| 111 | default: |
| 112 | fatali("invalid flag -N%c", *s); |
| 113 | } |
| 114 | getnum: |
| 115 | k = 0; |
| 116 | while( isdigit(*++s) ) |
| 117 | k = 10*k + (*s - '0'); |
| 118 | if(k <= 0) |
| 119 | fatal("Table size too small"); |
| 120 | *ip = k; |
| 121 | break; |
| 122 | |
| 123 | case 'I': |
| 124 | if(*++s == '2') |
| 125 | tyint = TYSHORT; |
| 126 | else if(*s == '4') |
| 127 | { |
| 128 | shortsubs = NO; |
| 129 | tyint = TYLONG; |
| 130 | } |
| 131 | else if(*s == 's') |
| 132 | shortsubs = YES; |
| 133 | else |
| 134 | fatali("invalid flag -I%c\n", *s); |
| 135 | tylogical = tyint; |
| 136 | break; |
| 137 | |
| 138 | default: |
| 139 | fatali("invalid flag %c\n", *s); |
| 140 | } |
| 141 | --argc; |
| 142 | ++argv; |
| 143 | } |
| 144 | |
| 145 | if(argc != 4) |
| 146 | fatali("arg count %d", argc); |
| 147 | asmfile = opf(argv[1]); |
| 148 | initfile = opf(argv[2]); |
| 149 | textfile = opf(argv[3]); |
| 150 | |
| 151 | initkey(); |
| 152 | if(inilex( copys(argv[0]) )) |
| 153 | DONE(1); |
| 154 | fprintf(diagfile, "%s:\n", argv[0]); |
| 155 | |
| 156 | #ifdef SDB |
| 157 | for(s = argv[0] ; ; s += 8) |
| 158 | { |
| 159 | prstab(s,N_SO,0,0); |
| 160 | if( strlen(s) < 8 ) |
| 161 | break; |
| 162 | } |
| 163 | #endif |
| 164 | |
| 165 | fileinit(); |
| 166 | procinit(); |
| 167 | if(k = yyparse()) |
| 168 | { |
| 169 | fprintf(diagfile, "Bad parse, return code %d\n", k); |
| 170 | DONE(1); |
| 171 | } |
| 172 | if(nerr > 0) |
| 173 | DONE(1); |
| 174 | if(parstate != OUTSIDE) |
| 175 | { |
| 176 | warn("missing END statement"); |
| 177 | endproc(); |
| 178 | } |
| 179 | doext(); |
| 180 | preven(ALIDOUBLE); |
| 181 | prtail(); |
| 182 | #if FAMILY==PCC |
| 183 | puteof(); |
| 184 | #endif |
| 185 | |
| 186 | if(nerr > 0) |
| 187 | DONE(1); |
| 188 | DONE(0); |
| 189 | |
| 190 | |
| 191 | finis: |
| 192 | done(retcode); |
| 193 | return(retcode); |
| 194 | } |
| 195 | |
| 196 | |
| 197 | |
| 198 | done(k) |
| 199 | int k; |
| 200 | { |
| 201 | static int recurs = NO; |
| 202 | |
| 203 | if(recurs == NO) |
| 204 | { |
| 205 | recurs = YES; |
| 206 | clfiles(); |
| 207 | } |
| 208 | exit(k); |
| 209 | } |
| 210 | |
| 211 | |
| 212 | LOCAL FILEP opf(fn) |
| 213 | char *fn; |
| 214 | { |
| 215 | FILEP fp; |
| 216 | if( fp = fopen(fn, "w") ) |
| 217 | return(fp); |
| 218 | |
| 219 | fatalstr("cannot open intermediate file %s", fn); |
| 220 | /* NOTREACHED */ |
| 221 | } |
| 222 | |
| 223 | |
| 224 | |
| 225 | LOCAL clfiles() |
| 226 | { |
| 227 | clf(&textfile); |
| 228 | clf(&asmfile); |
| 229 | clf(&initfile); |
| 230 | } |
| 231 | |
| 232 | |
| 233 | clf(p) |
| 234 | FILEP *p; |
| 235 | { |
| 236 | if(p!=NULL && *p!=NULL && *p!=stdout) |
| 237 | { |
| 238 | if(ferror(*p)) |
| 239 | fatal("writing error"); |
| 240 | fclose(*p); |
| 241 | } |
| 242 | *p = NULL; |
| 243 | } |
| 244 | |
| 245 | |
| 246 | |
| 247 | |
| 248 | flovflo() |
| 249 | { |
| 250 | err("floating exception during constant evaluation"); |
| 251 | #if HERE == VAX |
| 252 | fatal("vax cannot recover from floating exception"); |
| 253 | /* vax returns a reserved operand that generates |
| 254 | an illegal operand fault on next instruction, |
| 255 | which if ignored causes an infinite loop. |
| 256 | */ |
| 257 | #endif |
| 258 | signal(SIGFPE, flovflo); |
| 259 | } |