Example: VBREF compiler output

The following example shows an alphabetic listing of all the statements in a program, and shows where each is referenced. The listing is produced by the VBREF compiler option.

(1)      (2)                             (3)
2        ACCEPT . . . . . . . . . . . .  1010 1012
2        ADD. . . . . . . . . . . . . .  1290 1306
1        CALL . . . . . . . . . . . . .  1406
5        CLOSE. . . . . . . . . . . . .  898 945 970 1526 1535
20       COMPUTE. . . . . . . . . . . .  1506 1640 1644 1657 1660 1663 1664 1665 1678 1682 1686 1691 1696 1701 1709 1713
                                         1718 1723 1728 1733
2        CONTINUE . . . . . . . . . . .  1062 1069
2        DELETE . . . . . . . . . . . .  964 1193
48       DISPLAY. . . . . . . . . . . .  878 906 917 918 919 933 940 942 947 953 960 966 972 996 997 998 999 1003 1006 1037
                                         1090 1168 1171 1185 1195 1387 1388 1389 1390 1391 1392 1393 1401 1402 1403 1404
                                         1405 1433 1485 1486 1492 1497 1498 1520 1521 1528 1529 1624
2        EVALUATE . . . . . . . . . . .  1161 1557
47       IF . . . . . . . . . . . . . .  887 905 932 939 946 952 959 965 971 993 1002 1036 1051 1054 1071 1074 1077 1089
                                         1102 1111 1115 1125 1128 1131 1134 1137 1141 1145 1148 1151 1167 1184 1194 1240
                                         1247 1265 1272 1289 1321 1330 1339 1351 1361 1484 1496 1519 1527
183      MOVE . . . . . . . . . . . . .  907 937 957 983 984 985 986 987 988 1004 1011 1013 1025 1038 1052 1055 1060 1067
                                         1072 1075 1078 1079 1080 1081 1082 1083 1091 1103 1112 1126 1129 1132 1135 1139
                                         1143 1146 1149 1152 1160 1163 1169 1175 1177 1180 1181 1186 1191 1196 1201 1208
                                         1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1229 1230
                                         1231 1232 1233 1234 1235 1239 1241 1244 1248 1250 1251 1253 1254 1255 1257 1258
                                         1259 1260 1264 1266 1269 1273 1275 1276 1278 1279 1291 1294 1299 1301 1303 1307
                                         1313 1314 1315 1316 1317 1318 1319 1320 1322 1323 1327 1328 1331 1333 1334 1336
                                         1338 1341 1342 1343 1344 1348 1349 1352 1354 1355 1357 1362 1364 1368 1374 1375
                                         1376 1377 1378 1379 1380 1381 1414 1417 1422 1425 1445 1446 1447 1448 1450 1451
                                         1452 1457 1464 1489 1502 1507 1508 1509 1517 1551 1561 1566 1571 1576 1581 1586
                                         1591 1596 1601 1606 1611 1616 1621 1626 1627 1679 1683 1688 1693 1698 1703 1710
                                         1715 1720 1725 1730 1735
5        OPEN . . . . . . . . . . . . .  931 951 989 1443 1483
62       PERFORM. . . . . . . . . . . .  879 880 885 886 888 890 892 908 909 915 916 934 935 941 943 948 949 954 955 961
                                         962 967 968 973 974 1000 1005 1008 1023 1039 1092 1093 1116 1164 1165 1170 1172
                                         1176 1178 1179 1182 1187 1188 1192 1197 1198 1202 1246 1256 1271 1280 1329 1340
                                         1350 1359 1365 1369 1504 1510 1511 1532 1533
8        READ . . . . . . . . . . . . .  881 893 958 1014 1026 1085 1490 1514
1        REWRITE. . . . . . . . . . . .  1183
4        SEARCH . . . . . . . . . . . .  1058 1065 1413 1421
46       SET. . . . . . . . . . . . . .  883 895 1016 1028 1041 1057 1064 1084 1087 1363 1412 1420 1493 1499 1516 1522 1548
                                         1550 1559 1560 1564 1565 1569 1570 1574 1575 1579 1580 1584 1585 1589 1590 1594
                                         1595 1599 1600 1604 1605 1609 1610 1614 1615 1619 1620 1639 1643
2        STOP . . . . . . . . . . . . .  920 1434
4        STRING . . . . . . . . . . . .  1236 1261 1324 1345
33       WRITE. . . . . . . . . . . . .  938 1166 1292 1293 1295 1296 1297 1298 1300 1302 1305 1454 1459 1462 1465 1467 1469
                                         1471 1512 1654 1655 1667 1668 1669 1740 1742 1744 1745 1746 1747 1748 1749 1750
(1): Number of times the statement is used in the program
(2): statement
(3): Line numbers where the statement is used