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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
|
/* tc-tic54x.c -- Assembly code for the Texas Instruments TMS320C54X
Copyright (C) 1999-2016 Free Software Foundation, Inc.
Contributed by Timothy Wall (twall@cygnus.com)
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
/* Texas Instruments TMS320C54X machine specific gas.
Written by Timothy Wall (twall@alum.mit.edu).
Valuable things to do:
Pipeline conflict warnings
We encode/decode "ld #_label, dp" differently in relocatable files
This means we're not compatible with TI output containing those
expressions. We store the upper nine bits; TI stores the lower nine
bits. How they recover the original upper nine bits is beyond me.
Tests to add to expect testsuite:
'=' and '==' with .if, .elseif, and .break
Incompatibilities (mostly trivial):
We don't allow '''
We fill text section with zeroes instead of "nop"s
We don't convert '' or "" to a single instance
We don't convert '' to '\0'
We don't allow strings with .byte/.half/.short/.long
Probably details of the subsym stuff are different
TI sets labels to be data type 4 (T_INT); GAS uses T_NULL.
COFF1 limits section names to 8 characters.
Some of the default behavior changed from COFF1 to COFF2. */
#include "as.h"
#include <limits.h>
#include "safe-ctype.h"
#include "sb.h"
#include "macro.h"
#include "subsegs.h"
#include "struc-symbol.h"
#include "opcode/tic54x.h"
#include "obj-coff.h"
#include <math.h>
static struct stag
{
symbolS *sym; /* Symbol for this stag; value is offset. */
const char *name; /* Shortcut to symbol name. */
bfd_vma size; /* Size of struct/union. */
int current_bitfield_offset; /* Temporary for tracking fields. */
int is_union;
struct stag_field /* List of fields. */
{
const char *name;
bfd_vma offset; /* Of start of this field. */
int bitfield_offset; /* Of start of this field. */
struct stag *stag; /* If field is struct/union. */
struct stag_field *next;
} *field;
/* For nesting; used only in stag construction. */
struct stag *inner; /* Enclosed .struct. */
struct stag *outer; /* Enclosing .struct. */
} *current_stag = NULL;
#define MAX_LINE 256 /* Lines longer than this are truncated by TI's asm. */
typedef struct _tic54x_insn
{
const insn_template *tm; /* Opcode template. */
char mnemonic[MAX_LINE]; /* Opcode name/mnemonic. */
char parmnemonic[MAX_LINE]; /* 2nd mnemonic of parallel insn. */
int opcount;
struct opstruct
{
char buf[MAX_LINE];
enum optype type;
expressionS exp;
} operands[MAX_OPERANDS];
int paropcount;
struct opstruct paroperands[MAX_OPERANDS];
int is_lkaddr;
int lkoperand;
int words; /* Size of insn in 16-bit words. */
int using_default_dst; /* Do we need to explicitly set an
omitted OP_DST operand? */
struct
{
unsigned short word; /* Final encoded opcode data. */
int unresolved;
int r_nchars; /* Relocation size. */
bfd_reloc_code_real_type r_type; /* Relocation type. */
expressionS addr_expr; /* Storage for unresolved expressions. */
} opcode[3];
} tic54x_insn;
enum cpu_version
{
VNONE = 0, V541 = 1, V542 = 2, V543 = 3, V545 = 5, V548 = 8, V549 = 9,
V545LP = 15, V546LP = 16
};
enum address_mode
{
c_mode, /* 16-bit addresses. */
far_mode /* >16-bit addresses. */
};
static segT stag_saved_seg;
static subsegT stag_saved_subseg;
const char comment_chars[] = ";";
const char line_comment_chars[] = ";*#"; /* At column zero only. */
const char line_separator_chars[] = ""; /* Not permitted. */
int emitting_long = 0;
/* Characters which indicate that this is a floating point constant. */
const char FLT_CHARS[] = "fF";
/* Characters that can be used to separate mantissa from exp in FP
nums. */
const char EXP_CHARS[] = "eE";
const char *md_shortopts = "";
#define OPTION_ADDRESS_MODE (OPTION_MD_BASE)
#define OPTION_CPU_VERSION (OPTION_ADDRESS_MODE + 1)
#define OPTION_COFF_VERSION (OPTION_CPU_VERSION + 1)
#define OPTION_STDERR_TO_FILE (OPTION_COFF_VERSION + 1)
struct option md_longopts[] =
{
{ "mfar-mode", no_argument, NULL, OPTION_ADDRESS_MODE },
{ "mf", no_argument, NULL, OPTION_ADDRESS_MODE },
{ "mcpu", required_argument, NULL, OPTION_CPU_VERSION },
{ "merrors-to-file", required_argument, NULL, OPTION_STDERR_TO_FILE },
{ "me", required_argument, NULL, OPTION_STDERR_TO_FILE },
{ NULL, no_argument, NULL, 0},
};
size_t md_longopts_size = sizeof (md_longopts);
static int assembly_begun = 0;
/* Addressing mode is not entirely implemented; the latest rev of the Other
assembler doesn't seem to make any distinction whatsoever; all relocations
are stored as extended relocatiosn. Older versions used REL16 vs RELEXT16,
but now it seems all relocations are RELEXT16. We use all RELEXT16.
The cpu version is kind of a waste of time as well. There is one
instruction (RND) for LP devices only, and several for devices with
extended addressing only. We include it for compatibility. */
static enum address_mode amode = c_mode;
static enum cpu_version cpu = VNONE;
/* Include string substitutions in listing? */
static int listing_sslist = 0;
/* Did we do subsym substitutions on the line? */
static int substitution_line = 0;
/* Last label seen. */
static symbolS *last_label_seen = NULL;
/* This ensures that all new labels are unique. */
static int local_label_id;
static struct hash_control *subsym_recurse_hash; /* Prevent infinite recurse. */
static struct hash_control *math_hash; /* Built-in math functions. */
/* Allow maximum levels of macro nesting; level 0 is the main substitution
symbol table. The other assembler only does 32 levels, so there! */
static struct hash_control *subsym_hash[100];
/* Keep track of local labels so we can substitute them before GAS sees them
since macros use their own 'namespace' for local labels, use a separate hash
We do our own local label handling 'cuz it's subtly different from the
stock GAS handling.
We use our own macro nesting counter, since GAS overloads it when expanding
other things (like conditionals and repeat loops). */
static int macro_level = 0;
static struct hash_control *local_label_hash[100];
/* Keep track of struct/union tags. */
static struct hash_control *stag_hash;
static struct hash_control *op_hash;
static struct hash_control *parop_hash;
static struct hash_control *reg_hash;
static struct hash_control *mmreg_hash;
static struct hash_control *cc_hash;
static struct hash_control *cc2_hash;
static struct hash_control *cc3_hash;
static struct hash_control *sbit_hash;
static struct hash_control *misc_symbol_hash;
/* Only word (et al.), align, or conditionals are allowed within
.struct/.union. */
#define ILLEGAL_WITHIN_STRUCT() \
do \
if (current_stag != NULL) \
{ \
as_bad (_("pseudo-op illegal within .struct/.union")); \
return; \
} \
while (0)
static void subsym_create_or_replace (char *, char *);
static char *subsym_lookup (char *, int);
static char *subsym_substitute (char *, int);
void
md_show_usage (FILE *stream)
{
fprintf (stream, _("C54x-specific command line options:\n"));
fprintf (stream, _("-mfar-mode | -mf Use extended addressing\n"));
fprintf (stream, _("-mcpu=<CPU version> Specify the CPU version\n"));
fprintf (stream, _("-merrors-to-file <filename>\n"));
fprintf (stream, _("-me <filename> Redirect errors to a file\n"));
}
/* Output a single character (upper octect is zero). */
static void
tic54x_emit_char (char c)
{
expressionS expn;
expn.X_op = O_constant;
expn.X_add_number = c;
emit_expr (&expn, 2);
}
/* Walk backwards in the frag chain. */
static fragS *
frag_prev (fragS *frag, segT seg)
{
segment_info_type *seginfo = seg_info (seg);
fragS *fragp;
for (fragp = seginfo->frchainP->frch_root; fragp; fragp = fragp->fr_next)
if (fragp->fr_next == frag)
return fragp;
return NULL;
}
static fragS *
bit_offset_frag (fragS *frag, segT seg)
{
while (frag != NULL)
{
if (frag->fr_fix == 0
&& frag->fr_opcode == NULL
&& frag->tc_frag_data == 0)
frag = frag_prev (frag, seg);
else
return frag;
}
return NULL;
}
/* Return the number of bits allocated in the most recent word, or zero if
none. .field/.space/.bes may leave words partially allocated. */
static int
frag_bit_offset (fragS *frag, segT seg)
{
frag = bit_offset_frag (frag, seg);
if (frag)
return frag->fr_opcode != NULL ? -1 : frag->tc_frag_data;
return 0;
}
/* Read an expression from a C string; returns a pointer past the end of the
expression. */
static char *
parse_expression (char *str, expressionS *expn)
{
char *s;
char *tmp;
tmp = input_line_pointer; /* Save line pointer. */
input_line_pointer = str;
expression (expn);
s = input_line_pointer;
input_line_pointer = tmp; /* Restore line pointer. */
return s; /* Return pointer to where parsing stopped. */
}
/* .asg "character-string"|character-string, symbol
.eval is the only pseudo-op allowed to perform arithmetic on substitution
symbols. all other use of symbols defined with .asg are currently
unsupported. */
static void
tic54x_asg (int x ATTRIBUTE_UNUSED)
{
int c;
char *name;
char *str;
char *tmp;
int quoted = *input_line_pointer == '"';
ILLEGAL_WITHIN_STRUCT ();
if (quoted)
{
int len;
str = demand_copy_C_string (&len);
c = *input_line_pointer;
}
else
{
str = input_line_pointer;
while ((c = *input_line_pointer) != ',')
{
if (is_end_of_line[(int) *input_line_pointer])
break;
++input_line_pointer;
}
*input_line_pointer = 0;
}
if (c != ',')
{
as_bad (_("Comma and symbol expected for '.asg STRING, SYMBOL'"));
ignore_rest_of_line ();
return;
}
++input_line_pointer;
c = get_symbol_name (&name); /* Get terminator. */
if (!ISALPHA (*name))
{
as_bad (_("symbols assigned with .asg must begin with a letter"));
ignore_rest_of_line ();
return;
}
tmp = xmalloc (strlen (str) + 1);
strcpy (tmp, str);
str = tmp;
tmp = xmalloc (strlen (name) + 1);
strcpy (tmp, name);
name = tmp;
subsym_create_or_replace (name, str);
(void) restore_line_pointer (c);
demand_empty_rest_of_line ();
}
/* .eval expression, symbol
There's something screwy about this. The other assembler sometimes does and
sometimes doesn't substitute symbols defined with .eval.
We'll put the symbols into the subsym table as well as the normal symbol
table, since that's what works best. */
static void
tic54x_eval (int x ATTRIBUTE_UNUSED)
{
char c;
int value;
char *name;
symbolS *symbolP;
char valuestr[32], *tmp;
int quoted;
ILLEGAL_WITHIN_STRUCT ();
SKIP_WHITESPACE ();
quoted = *input_line_pointer == '"';
if (quoted)
++input_line_pointer;
value = get_absolute_expression ();
if (quoted)
{
if (*input_line_pointer != '"')
{
as_bad (_("Unterminated string after absolute expression"));
ignore_rest_of_line ();
return;
}
++input_line_pointer;
}
if (*input_line_pointer++ != ',')
{
as_bad (_("Comma and symbol expected for '.eval EXPR, SYMBOL'"));
ignore_rest_of_line ();
return;
}
c = get_symbol_name (&name); /* Get terminator. */
tmp = xmalloc (strlen (name) + 1);
name = strcpy (tmp, name);
(void) restore_line_pointer (c);
if (!ISALPHA (*name))
{
as_bad (_("symbols assigned with .eval must begin with a letter"));
ignore_rest_of_line ();
return;
}
symbolP = symbol_new (name, absolute_section,
(valueT) value, &zero_address_frag);
SF_SET_LOCAL (symbolP);
symbol_table_insert (symbolP);
/* The "other" assembler sometimes doesn't put .eval's in the subsym table
But since there's not written rule as to when, don't even bother trying
to match their behavior. */
sprintf (valuestr, "%d", value);
tmp = xmalloc (strlen (valuestr) + 1);
strcpy (tmp, valuestr);
subsym_create_or_replace (name, tmp);
demand_empty_rest_of_line ();
}
/* .bss symbol, size [, [blocking flag] [, alignment flag]
alignment is to a longword boundary; blocking is to 128-word boundary.
1) if there is a hole in memory, this directive should attempt to fill it
(not yet implemented).
2) if the blocking flag is not set, allocate at the current SPC
otherwise, check to see if the current SPC plus the space to be
allocated crosses the page boundary (128 words).
if there's not enough space, create a hole and align with the next page
boundary.
(not yet implemented). */
static void
tic54x_bss (int x ATTRIBUTE_UNUSED)
{
char c;
char *name;
char *p;
int words;
segT current_seg;
subsegT current_subseg;
symbolS *symbolP;
int block = 0;
int align = 0;
ILLEGAL_WITHIN_STRUCT ();
current_seg = now_seg; /* Save current seg. */
current_subseg = now_subseg; /* Save current subseg. */
c = get_symbol_name (&name); /* Get terminator. */
if (c == '"')
c = * ++ input_line_pointer;
if (c != ',')
{
as_bad (_(".bss size argument missing\n"));
ignore_rest_of_line ();
return;
}
++input_line_pointer;
words = get_absolute_expression ();
if (words < 0)
{
as_bad (_(".bss size %d < 0!"), words);
ignore_rest_of_line ();
return;
}
if (*input_line_pointer == ',')
{
/* The blocking flag may be missing. */
++input_line_pointer;
if (*input_line_pointer != ',')
block = get_absolute_expression ();
else
block = 0;
if (*input_line_pointer == ',')
{
++input_line_pointer;
align = get_absolute_expression ();
}
else
align = 0;
}
else
block = align = 0;
subseg_set (bss_section, 0);
symbolP = symbol_find_or_make (name);
if (S_GET_SEGMENT (symbolP) == bss_section)
symbolP->sy_frag->fr_symbol = (symbolS *) NULL;
symbol_set_frag (symbolP, frag_now);
p = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP,
(offsetT) (words * OCTETS_PER_BYTE), (char *) 0);
*p = 0; /* Fill char. */
S_SET_SEGMENT (symbolP, bss_section);
/* The symbol may already have been created with a preceding
".globl" directive -- be careful not to step on storage class
in that case. Otherwise, set it to static. */
if (S_GET_STORAGE_CLASS (symbolP) != C_EXT)
S_SET_STORAGE_CLASS (symbolP, C_STAT);
if (align)
{
/* s_align eats end of line; restore it */
s_align_bytes (4);
--input_line_pointer;
}
if (block)
bss_section->flags |= SEC_TIC54X_BLOCK;
subseg_set (current_seg, current_subseg); /* Restore current seg. */
demand_empty_rest_of_line ();
}
static void
stag_add_field_symbols (struct stag *stag,
const char *path,
bfd_vma base_offset,
symbolS *rootsym,
const char *root_stag_name)
{
char prefix[strlen (path) + 2];
struct stag_field *field = stag->field;
/* Construct a symbol for every field contained within this structure
including fields within structure fields. */
strcpy (prefix, path);
if (*path)
strcat (prefix, ".");
while (field != NULL)
{
int len = strlen (prefix) + strlen (field->name) + 2;
char *name = xmalloc (len);
strcpy (name, prefix);
strcat (name, field->name);
if (rootsym == NULL)
{
symbolS *sym;
sym = symbol_new (name, absolute_section,
(field->stag ? field->offset :
(valueT) (base_offset + field->offset)),
&zero_address_frag);
SF_SET_LOCAL (sym);
symbol_table_insert (sym);
}
else
{
char *replacement = xmalloc (strlen (name)
+ strlen (stag->name) + 2);
strcpy (replacement, S_GET_NAME (rootsym));
strcat (replacement, "+");
strcat (replacement, root_stag_name);
strcat (replacement, name + strlen (S_GET_NAME (rootsym)));
hash_insert (subsym_hash[0], name, replacement);
}
/* Recurse if the field is a structure.
Note the field offset is relative to the outermost struct. */
if (field->stag != NULL)
stag_add_field_symbols (field->stag, name,
field->offset,
rootsym, root_stag_name);
field = field->next;
}
}
/* Keep track of stag fields so that when structures are nested we can add the
complete dereferencing symbols to the symbol table. */
static void
stag_add_field (struct stag *parent,
const char *name,
bfd_vma offset,
struct stag *stag)
{
struct stag_field *sfield = xmalloc (sizeof (struct stag_field));
memset (sfield, 0, sizeof (*sfield));
sfield->name = strcpy (xmalloc (strlen (name) + 1), name);
sfield->offset = offset;
sfield->bitfield_offset = parent->current_bitfield_offset;
sfield->stag = stag;
if (parent->field == NULL)
parent->field = sfield;
else
{
struct stag_field *sf = parent->field;
while (sf->next != NULL)
sf = sf->next;
sf->next = sfield;
}
/* Only create a symbol for this field if the parent has no name. */
if (!strncmp (".fake", parent->name, 5))
{
symbolS *sym = symbol_new (name, absolute_section,
(valueT) offset, &zero_address_frag);
SF_SET_LOCAL (sym);
symbol_table_insert (sym);
}
}
/* [STAG] .struct [OFFSET]
Start defining structure offsets (symbols in absolute section). */
static void
tic54x_struct (int arg)
{
int start_offset = 0;
int is_union = arg;
if (!current_stag)
{
/* Starting a new struct, switch to absolute section. */
stag_saved_seg = now_seg;
stag_saved_subseg = now_subseg;
subseg_set (absolute_section, 0);
}
/* Align the current pointer. */
else if (current_stag->current_bitfield_offset != 0)
{
++abs_section_offset;
current_stag->current_bitfield_offset = 0;
}
/* Offset expression is only meaningful for global .structs. */
if (!is_union)
{
/* Offset is ignored in inner structs. */
SKIP_WHITESPACE ();
if (!is_end_of_line[(int) *input_line_pointer])
start_offset = get_absolute_expression ();
else
start_offset = 0;
}
if (current_stag)
{
/* Nesting, link to outer one. */
current_stag->inner = (struct stag *) xmalloc (sizeof (struct stag));
memset (current_stag->inner, 0, sizeof (struct stag));
current_stag->inner->outer = current_stag;
current_stag = current_stag->inner;
if (start_offset)
as_warn (_("Offset on nested structures is ignored"));
start_offset = abs_section_offset;
}
else
{
current_stag = (struct stag *) xmalloc (sizeof (struct stag));
memset (current_stag, 0, sizeof (struct stag));
abs_section_offset = start_offset;
}
current_stag->is_union = is_union;
if (line_label == NULL)
{
static int struct_count = 0;
char fake[] = ".fake_stagNNNNNNN";
sprintf (fake, ".fake_stag%d", struct_count++);
current_stag->sym = symbol_new (fake, absolute_section,
(valueT) abs_section_offset,
&zero_address_frag);
}
else
{
char label[strlen (S_GET_NAME (line_label)) + 1];
strcpy (label, S_GET_NAME (line_label));
current_stag->sym = symbol_new (label, absolute_section,
(valueT) abs_section_offset,
&zero_address_frag);
}
current_stag->name = S_GET_NAME (current_stag->sym);
SF_SET_LOCAL (current_stag->sym);
/* Nested .structs don't go into the symbol table. */
if (current_stag->outer == NULL)
symbol_table_insert (current_stag->sym);
line_label = NULL;
}
/* [LABEL] .endstruct
finish defining structure offsets; optional LABEL's value will be the size
of the structure. */
static void
tic54x_endstruct (int is_union)
{
int size;
const char *path =
!strncmp (current_stag->name, ".fake", 5) ? "" : current_stag->name;
if (!current_stag || current_stag->is_union != is_union)
{
as_bad (_(".end%s without preceding .%s"),
is_union ? "union" : "struct",
is_union ? "union" : "struct");
ignore_rest_of_line ();
return;
}
/* Align end of structures. */
if (current_stag->current_bitfield_offset)
{
++abs_section_offset;
current_stag->current_bitfield_offset = 0;
}
if (current_stag->is_union)
size = current_stag->size;
else
size = abs_section_offset - S_GET_VALUE (current_stag->sym);
if (line_label != NULL)
{
S_SET_VALUE (line_label, size);
symbol_table_insert (line_label);
line_label = NULL;
}
/* Union size has already been calculated. */
if (!current_stag->is_union)
current_stag->size = size;
/* Nested .structs don't get put in the stag table. */
if (current_stag->outer == NULL)
{
hash_insert (stag_hash, current_stag->name, current_stag);
stag_add_field_symbols (current_stag, path,
S_GET_VALUE (current_stag->sym),
NULL, NULL);
}
current_stag = current_stag->outer;
/* If this is a nested .struct/.union, add it as a field to the enclosing
one. otherwise, restore the section we were in. */
if (current_stag != NULL)
{
stag_add_field (current_stag, current_stag->inner->name,
S_GET_VALUE (current_stag->inner->sym),
current_stag->inner);
}
else
subseg_set (stag_saved_seg, stag_saved_subseg);
}
/* [LABEL] .tag STAG
Reference a structure within a structure, as a sized field with an optional
label.
If used outside of a .struct/.endstruct, overlays the given structure
format on the existing allocated space. */
static void
tic54x_tag (int ignore ATTRIBUTE_UNUSED)
{
char *name;
int c = get_symbol_name (&name);
struct stag *stag = (struct stag *) hash_find (stag_hash, name);
if (!stag)
{
if (*name)
as_bad (_("Unrecognized struct/union tag '%s'"), name);
else
as_bad (_(".tag requires a structure tag"));
ignore_rest_of_line ();
return;
}
if (line_label == NULL)
{
as_bad (_("Label required for .tag"));
ignore_rest_of_line ();
return;
}
else
{
char label[strlen (S_GET_NAME (line_label)) + 1];
strcpy (label, S_GET_NAME (line_label));
if (current_stag != NULL)
stag_add_field (current_stag, label,
abs_section_offset - S_GET_VALUE (current_stag->sym),
stag);
else
{
symbolS *sym = symbol_find (label);
if (!sym)
{
as_bad (_(".tag target '%s' undefined"), label);
ignore_rest_of_line ();
return;
}
stag_add_field_symbols (stag, S_GET_NAME (sym),
S_GET_VALUE (stag->sym), sym, stag->name);
}
}
/* Bump by the struct size, but only if we're within a .struct section. */
if (current_stag != NULL && !current_stag->is_union)
abs_section_offset += stag->size;
(void) restore_line_pointer (c);
demand_empty_rest_of_line ();
line_label = NULL;
}
/* Handle all .byte, .char, .double, .field, .float, .half, .int, .long,
.short, .string, .ubyte, .uchar, .uhalf, .uint, .ulong, .ushort, .uword,
and .word. */
static void
tic54x_struct_field (int type)
{
int size;
int count = 1;
int new_bitfield_offset = 0;
int field_align = current_stag->current_bitfield_offset != 0;
int longword_align = 0;
SKIP_WHITESPACE ();
if (!is_end_of_line[(int) *input_line_pointer])
count = get_absolute_expression ();
switch (type)
{
case 'b':
case 'B':
case 'c':
case 'C':
case 'h':
case 'H':
case 'i':
case 'I':
case 's':
case 'S':
case 'w':
case 'W':
case '*': /* String. */
size = 1;
break;
case 'f':
case 'l':
case 'L':
longword_align = 1;
size = 2;
break;
case '.': /* Bitfield. */
size = 0;
if (count < 1 || count > 32)
{
as_bad (_(".field count '%d' out of range (1 <= X <= 32)"), count);
ignore_rest_of_line ();
return;
}
if (current_stag->current_bitfield_offset + count > 16)
{
/* Set the appropriate size and new field offset. */
if (count == 32)
{
size = 2;
count = 1;
}
else if (count > 16)
{
size = 1;
count = 1;
new_bitfield_offset = count - 16;
}
else
new_bitfield_offset = count;
}
else
{
field_align = 0;
new_bitfield_offset = current_stag->current_bitfield_offset + count;
}
break;
default:
as_bad (_("Unrecognized field type '%c'"), type);
ignore_rest_of_line ();
return;
}
if (field_align)
{
/* Align to the actual starting position of the field. */
current_stag->current_bitfield_offset = 0;
++abs_section_offset;
}
/* Align to longword boundary. */
if (longword_align && (abs_section_offset & 0x1))
++abs_section_offset;
if (line_label == NULL)
{
static int fieldno = 0;
char fake[] = ".fake_fieldNNNNN";
sprintf (fake, ".fake_field%d", fieldno++);
stag_add_field (current_stag, fake,
abs_section_offset - S_GET_VALUE (current_stag->sym),
NULL);
}
else
{
char label[strlen (S_GET_NAME (line_label) + 1)];
strcpy (label, S_GET_NAME (line_label));
stag_add_field (current_stag, label,
abs_section_offset - S_GET_VALUE (current_stag->sym),
NULL);
}
if (current_stag->is_union)
{
/* Note we treat the element as if it were an array of COUNT. */
if (current_stag->size < (unsigned) size * count)
current_stag->size = size * count;
}
else
{
abs_section_offset += (unsigned) size * count;
current_stag->current_bitfield_offset = new_bitfield_offset;
}
line_label = NULL;
}
/* Handle .byte, .word. .int, .long and all variants. */
static void
tic54x_cons (int type)
{
unsigned int c;
int octets;
/* If we're within a .struct construct, don't actually allocate space. */
if (current_stag != NULL)
{
tic54x_struct_field (type);
return;
}
#ifdef md_flush_pending_output
md_flush_pending_output ();
#endif
generate_lineno_debug ();
/* Align long words to long word boundaries (4 octets). */
if (type == 'l' || type == 'L')
{
frag_align (2, 0, 2);
/* If there's a label, assign it to the first allocated word. */
if (line_label != NULL)
{
symbol_set_frag (line_label, frag_now);
S_SET_VALUE (line_label, frag_now_fix ());
}
}
switch (type)
{
case 'l':
case 'L':
case 'x':
octets = 4;
break;
case 'b':
case 'B':
case 'c':
case 'C':
octets = 1;
break;
default:
octets = 2;
break;
}
do
{
if (*input_line_pointer == '"')
{
input_line_pointer++;
while (is_a_char (c = next_char_of_string ()))
tic54x_emit_char (c);
know (input_line_pointer[-1] == '\"');
}
else
{
expressionS expn;
input_line_pointer = parse_expression (input_line_pointer, &expn);
if (expn.X_op == O_constant)
{
offsetT value = expn.X_add_number;
/* Truncate overflows. */
switch (octets)
{
case 1:
if ((value > 0 && value > 0xFF)
|| (value < 0 && value < - 0x100))
as_warn (_("Overflow in expression, truncated to 8 bits"));
break;
case 2:
if ((value > 0 && value > 0xFFFF)
|| (value < 0 && value < - 0x10000))
as_warn (_("Overflow in expression, truncated to 16 bits"));
break;
}
}
if (expn.X_op != O_constant && octets < 2)
{
/* Disallow .byte with a non constant expression that will
require relocation. */
as_bad (_("Relocatable values require at least WORD storage"));
ignore_rest_of_line ();
return;
}
if (expn.X_op != O_constant
&& amode == c_mode
&& octets == 4)
{
/* FIXME -- at one point TI tools used to output REL16
relocations, but I don't think the latest tools do at all
The current tools output extended relocations regardless of
the addressing mode (I actually think that ".c_mode" is
totally ignored in the latest tools). */
amode = far_mode;
emitting_long = 1;
emit_expr (&expn, 4);
emitting_long = 0;
amode = c_mode;
}
else
{
emitting_long = octets == 4;
emit_expr (&expn, (octets == 1) ? 2 : octets);
emitting_long = 0;
}
}
}
while (*input_line_pointer++ == ',');
input_line_pointer--; /* Put terminator back into stream. */
demand_empty_rest_of_line ();
}
/* .global <symbol>[,...,<symbolN>]
.def <symbol>[,...,<symbolN>]
.ref <symbol>[,...,<symbolN>]
These all identify global symbols.
.def means the symbol is defined in the current module and can be accessed
by other files. The symbol should be placed in the symbol table.
.ref means the symbol is used in the current module but defined in another
module. The linker is to resolve this symbol's definition at link time.
.global should act as a .ref or .def, as needed.
global, def and ref all have symbol storage classes of C_EXT.
I can't identify any difference in how the "other" c54x assembler treats
these, so we ignore the type here. */
void
tic54x_global (int type)
{
char *name;
int c;
symbolS *symbolP;
if (type == 'r')
as_warn (_("Use of .def/.ref is deprecated. Use .global instead"));
ILLEGAL_WITHIN_STRUCT ();
do
{
c = get_symbol_name (&name);
symbolP = symbol_find_or_make (name);
c = restore_line_pointer (c);
S_SET_STORAGE_CLASS (symbolP, C_EXT);
if (c == ',')
{
input_line_pointer++;
if (is_end_of_line[(int) *input_line_pointer])
c = *input_line_pointer;
}
}
while (c == ',');
demand_empty_rest_of_line ();
}
/* Remove the symbol from the local label hash lookup. */
static void
tic54x_remove_local_label (const char *key, void *value ATTRIBUTE_UNUSED)
{
void *elem = hash_delete (local_label_hash[macro_level], key, FALSE);
free (elem);
}
/* Reset all local labels. */
static void
tic54x_clear_local_labels (int ignored ATTRIBUTE_UNUSED)
{
hash_traverse (local_label_hash[macro_level], tic54x_remove_local_label);
}
/* .text
.data
.sect "section name"
Initialized section
make sure local labels get cleared when changing sections
ARG is 't' for text, 'd' for data, or '*' for a named section
For compatibility, '*' sections are SEC_CODE if instructions are
encountered, or SEC_DATA if not.
*/
static void
tic54x_sect (int arg)
{
ILLEGAL_WITHIN_STRUCT ();
/* Local labels are cleared when changing sections. */
tic54x_clear_local_labels (0);
if (arg == 't')
s_text (0);
else if (arg == 'd')
s_data (0);
else
{
char *name = NULL;
int len;
/* If there are quotes, remove them. */
if (*input_line_pointer == '"')
{
name = demand_copy_C_string (&len);
demand_empty_rest_of_line ();
name = strcpy (xmalloc (len + 10), name);
}
else
{
int c;
c = get_symbol_name (&name);
len = strlen(name);
name = strcpy (xmalloc (len + 10), name);
(void) restore_line_pointer (c);
demand_empty_rest_of_line ();
}
/* Make sure all named initialized sections flagged properly. If we
encounter instructions, we'll flag it with SEC_CODE as well. */
strcat (name, ",\"w\"\n");
input_scrub_insert_line (name);
obj_coff_section (0);
/* If there was a line label, make sure that it gets assigned the proper
section. This is for compatibility, even though the actual behavior
is not explicitly defined. For consistency, we make .sect behave
like .usect, since that is probably what people expect. */
if (line_label != NULL)
{
S_SET_SEGMENT (line_label, now_seg);
symbol_set_frag (line_label, frag_now);
S_SET_VALUE (line_label, frag_now_fix ());
if (S_GET_STORAGE_CLASS (line_label) != C_EXT)
S_SET_STORAGE_CLASS (line_label, C_LABEL);
}
}
}
/* [symbol] .space space_in_bits
[symbol] .bes space_in_bits
BES puts the symbol at the *last* word allocated
cribbed from s_space. */
static void
tic54x_space (int arg)
{
expressionS expn;
char *p = 0;
int octets = 0;
long words;
int bits_per_byte = (OCTETS_PER_BYTE * 8);
int bit_offset = 0;
symbolS *label = line_label;
int bes = arg;
ILLEGAL_WITHIN_STRUCT ();
#ifdef md_flush_pending_output
md_flush_pending_output ();
#endif
/* Read the bit count. */
expression (&expn);
/* Some expressions are unresolvable until later in the assembly pass;
postpone until relaxation/fixup. we also have to postpone if a previous
partial allocation has not been completed yet. */
if (expn.X_op != O_constant || frag_bit_offset (frag_now, now_seg) == -1)
{
struct bit_info *bi = xmalloc (sizeof (struct bit_info));
bi->seg = now_seg;
bi->type = bes;
bi->sym = label;
p = frag_var (rs_machine_dependent,
65536 * 2, 1, (relax_substateT) 0,
make_expr_symbol (&expn), (offsetT) 0,
(char *) bi);
if (p)
*p = 0;
return;
}
/* Reduce the required size by any bit offsets currently left over
from a previous .space/.bes/.field directive. */
bit_offset = frag_now->tc_frag_data;
if (bit_offset != 0 && bit_offset < 16)
{
int spare_bits = bits_per_byte - bit_offset;
if (spare_bits >= expn.X_add_number)
{
/* Don't have to do anything; sufficient bits have already been
allocated; just point the label to the right place. */
if (label != NULL)
{
symbol_set_frag (label, frag_now);
S_SET_VALUE (label, frag_now_fix () - 1);
label = NULL;
}
frag_now->tc_frag_data += expn.X_add_number;
goto getout;
}
expn.X_add_number -= spare_bits;
/* Set the label to point to the first word allocated, which in this
case is the previous word, which was only partially filled. */
if (!bes && label != NULL)
{
symbol_set_frag (label, frag_now);
S_SET_VALUE (label, frag_now_fix () - 1);
label = NULL;
}
}
/* Convert bits to bytes/words and octets, rounding up. */
words = ((expn.X_add_number + bits_per_byte - 1) / bits_per_byte);
/* How many do we have left over? */
bit_offset = expn.X_add_number % bits_per_byte;
octets = words * OCTETS_PER_BYTE;
if (octets < 0)
{
as_warn (_(".space/.bes repeat count is negative, ignored"));
goto getout;
}
else if (octets == 0)
{
as_warn (_(".space/.bes repeat count is zero, ignored"));
goto getout;
}
/* If we are in the absolute section, just bump the offset. */
if (now_seg == absolute_section)
{
abs_section_offset += words;
if (bes && label != NULL)
S_SET_VALUE (label, abs_section_offset - 1);
frag_now->tc_frag_data = bit_offset;
goto getout;
}
if (!need_pass_2)
p = frag_var (rs_fill, 1, 1,
(relax_substateT) 0, (symbolS *) 0,
(offsetT) octets, (char *) 0);
/* Make note of how many bits of this word we've allocated so far. */
frag_now->tc_frag_data = bit_offset;
/* .bes puts label at *last* word allocated. */
if (bes && label != NULL)
{
symbol_set_frag (label, frag_now);
S_SET_VALUE (label, frag_now_fix () - 1);
}
if (p)
*p = 0;
getout:
demand_empty_rest_of_line ();
}
/* [symbol] .usect "section-name", size-in-words
[, [blocking-flag] [, alignment-flag]]
Uninitialized section.
Non-zero blocking means that if the section would cross a page (128-word)
boundary, it will be page-aligned.
Non-zero alignment aligns on a longword boundary.
Has no effect on the current section. */
static void
tic54x_usect (int x ATTRIBUTE_UNUSED)
{
char c;
char *name;
char *section_name;
char *p;
segT seg;
int size, blocking_flag, alignment_flag;
segT current_seg;
subsegT current_subseg;
flagword flags;
ILLEGAL_WITHIN_STRUCT ();
current_seg = now_seg; /* Save current seg. */
current_subseg = now_subseg; /* Save current subseg. */
c = get_symbol_name (§ion_name); /* Get terminator. */
name = xmalloc (input_line_pointer - section_name + 1);
strcpy (name, section_name);
c = restore_line_pointer (c);
if (c == ',')
++input_line_pointer;
else
{
as_bad (_("Missing size argument"));
ignore_rest_of_line ();
return;
}
size = get_absolute_expression ();
/* Read a possibly present third argument (blocking flag). */
if (*input_line_pointer == ',')
{
++input_line_pointer;
if (*input_line_pointer != ',')
blocking_flag = get_absolute_expression ();
else
blocking_flag = 0;
/* Read a possibly present fourth argument (alignment flag). */
if (*input_line_pointer == ',')
{
++input_line_pointer;
alignment_flag = get_absolute_expression ();
}
else
alignment_flag = 0;
}
else
blocking_flag = alignment_flag = 0;
seg = subseg_new (name, 0);
flags = bfd_get_section_flags (stdoutput, seg) | SEC_ALLOC;
if (alignment_flag)
{
/* s_align eats end of line; restore it. */
s_align_bytes (4);
--input_line_pointer;
}
if (line_label != NULL)
{
S_SET_SEGMENT (line_label, seg);
symbol_set_frag (line_label, frag_now);
S_SET_VALUE (line_label, frag_now_fix ());
/* Set scl to label, since that's what TI does. */
if (S_GET_STORAGE_CLASS (line_label) != C_EXT)
S_SET_STORAGE_CLASS (line_label, C_LABEL);
}
seg_info (seg)->bss = 1; /* Uninitialized data. */
p = frag_var (rs_fill, 1, 1,
(relax_substateT) 0, (symbolS *) line_label,
size * OCTETS_PER_BYTE, (char *) 0);
*p = 0;
if (blocking_flag)
flags |= SEC_TIC54X_BLOCK;
if (!bfd_set_section_flags (stdoutput, seg, flags))
as_warn (_("Error setting flags for \"%s\": %s"), name,
bfd_errmsg (bfd_get_error ()));
subseg_set (current_seg, current_subseg); /* Restore current seg. */
demand_empty_rest_of_line ();
}
static enum cpu_version
lookup_version (const char *ver)
{
enum cpu_version version = VNONE;
if (ver[0] == '5' && ver[1] == '4')
{
if (strlen (ver) == 3
&& (ver[2] == '1' || ver[2] == '2' || ver[2] == '3'
|| ver[2] == '5' || ver[2] == '8' || ver[2] == '9'))
version = ver[2] - '0';
else if (strlen (ver) == 5
&& TOUPPER (ver[3]) == 'L'
&& TOUPPER (ver[4]) == 'P'
&& (ver[2] == '5' || ver[2] == '6'))
version = ver[2] - '0' + 10;
}
return version;
}
static void
set_cpu (enum cpu_version version)
{
cpu = version;
if (version == V545LP || version == V546LP)
{
symbolS *symbolP = symbol_new ("__allow_lp", absolute_section,
(valueT) 1, &zero_address_frag);
SF_SET_LOCAL (symbolP);
symbol_table_insert (symbolP);
}
}
/* .version cpu-version
cpu-version may be one of the following:
541
542
543
545
545LP
546LP
548
549
This is for compatibility only. It currently has no affect on assembly. */
static int cpu_needs_set = 1;
static void
tic54x_version (int x ATTRIBUTE_UNUSED)
{
enum cpu_version version = VNONE;
enum cpu_version old_version = cpu;
int c;
char *ver;
ILLEGAL_WITHIN_STRUCT ();
SKIP_WHITESPACE ();
ver = input_line_pointer;
while (!is_end_of_line[(int) *input_line_pointer])
++input_line_pointer;
c = *input_line_pointer;
*input_line_pointer = 0;
version = lookup_version (ver);
if (cpu != VNONE && cpu != version)
as_warn (_("CPU version has already been set"));
if (version == VNONE)
{
as_bad (_("Unrecognized version '%s'"), ver);
ignore_rest_of_line ();
return;
}
else if (assembly_begun && version != old_version)
{
as_bad (_("Changing of CPU version on the fly not supported"));
ignore_rest_of_line ();
return;
}
set_cpu (version);
*input_line_pointer = c;
demand_empty_rest_of_line ();
}
/* 'f' = float, 'x' = xfloat, 'd' = double, 'l' = ldouble. */
static void
tic54x_float_cons (int type)
{
if (current_stag != 0)
tic54x_struct_field ('f');
#ifdef md_flush_pending_output
md_flush_pending_output ();
#endif
/* Align to long word boundary (4 octets) unless it's ".xfloat". */
if (type != 'x')
{
frag_align (2, 0, 2);
/* If there's a label, assign it to the first allocated word. */
if (line_label != NULL)
{
symbol_set_frag (line_label, frag_now);
S_SET_VALUE (line_label, frag_now_fix ());
}
}
float_cons ('f');
}
/* The argument is capitalized if it should be zero-terminated
's' is normal string with upper 8-bits zero-filled, 'p' is packed.
Code copied from stringer, and slightly modified so that strings are packed
and encoded into the correct octets. */
static void
tic54x_stringer (int type)
{
unsigned int c;
int append_zero = type == 'S' || type == 'P';
int packed = type == 'p' || type == 'P';
int last_char = -1; /* Packed strings need two bytes at a time to encode. */
if (current_stag != NULL)
{
tic54x_struct_field ('*');
return;
}
#ifdef md_flush_pending_output
md_flush_pending_output ();
#endif
c = ','; /* Do loop. */
while (c == ',')
{
SKIP_WHITESPACE ();
switch (*input_line_pointer)
{
default:
{
unsigned short value = get_absolute_expression ();
FRAG_APPEND_1_CHAR ( value & 0xFF);
FRAG_APPEND_1_CHAR ((value >> 8) & 0xFF);
break;
}
case '\"':
++input_line_pointer; /* -> 1st char of string. */
while (is_a_char (c = next_char_of_string ()))
{
if (!packed)
{
FRAG_APPEND_1_CHAR (c);
FRAG_APPEND_1_CHAR (0);
}
else
{
/* Packed strings are filled MS octet first. */
if (last_char == -1)
last_char = c;
else
{
FRAG_APPEND_1_CHAR (c);
FRAG_APPEND_1_CHAR (last_char);
last_char = -1;
}
}
}
if (append_zero)
{
if (packed && last_char != -1)
{
FRAG_APPEND_1_CHAR (0);
FRAG_APPEND_1_CHAR (last_char);
last_char = -1;
}
else
{
FRAG_APPEND_1_CHAR (0);
FRAG_APPEND_1_CHAR (0);
}
}
know (input_line_pointer[-1] == '\"');
break;
}
SKIP_WHITESPACE ();
c = *input_line_pointer;
if (!is_end_of_line[c])
++input_line_pointer;
}
/* Finish up any leftover packed string. */
if (packed && last_char != -1)
{
FRAG_APPEND_1_CHAR (0);
FRAG_APPEND_1_CHAR (last_char);
}
demand_empty_rest_of_line ();
}
static void
tic54x_p2align (int arg ATTRIBUTE_UNUSED)
{
as_bad (_("p2align not supported on this target"));
}
static void
tic54x_align_words (int arg)
{
/* Only ".align" with no argument is allowed within .struct/.union. */
int count = arg;
if (!is_end_of_line[(int) *input_line_pointer])
{
if (arg == 2)
as_warn (_("Argument to .even ignored"));
else
count = get_absolute_expression ();
}
if (current_stag != NULL && arg == 128)
{
if (current_stag->current_bitfield_offset != 0)
{
current_stag->current_bitfield_offset = 0;
++abs_section_offset;
}
demand_empty_rest_of_line ();
return;
}
ILLEGAL_WITHIN_STRUCT ();
s_align_bytes (count << 1);
}
/* Initialize multiple-bit fields withing a single word of memory. */
static void
tic54x_field (int ignore ATTRIBUTE_UNUSED)
{
expressionS expn;
int size = 16;
char *p;
valueT value;
symbolS *label = line_label;
if (current_stag != NULL)
{
tic54x_struct_field ('.');
return;
}
input_line_pointer = parse_expression (input_line_pointer, &expn);
if (*input_line_pointer == ',')
{
++input_line_pointer;
size = get_absolute_expression ();
if (size < 1 || size > 32)
{
as_bad (_("Invalid field size, must be from 1 to 32"));
ignore_rest_of_line ();
return;
}
}
/* Truncate values to the field width. */
if (expn.X_op != O_constant)
{
/* If the expression value is relocatable, the field size *must*
be 16. */
if (size != 16)
{
as_bad (_("field size must be 16 when value is relocatable"));
ignore_rest_of_line ();
return;
}
frag_now->tc_frag_data = 0;
emit_expr (&expn, 2);
}
else
{
unsigned long fmask = (size == 32) ? 0xFFFFFFFF : (1ul << size) - 1;
value = expn.X_add_number;
expn.X_add_number &= fmask;
if (value != (valueT) expn.X_add_number)
as_warn (_("field value truncated"));
value = expn.X_add_number;
/* Bits are stored MS first. */
while (size >= 16)
{
frag_now->tc_frag_data = 0;
p = frag_more (2);
md_number_to_chars (p, (value >> (size - 16)) & 0xFFFF, 2);
size -= 16;
}
if (size > 0)
{
int bit_offset = frag_bit_offset (frag_now, now_seg);
fragS *alloc_frag = bit_offset_frag (frag_now, now_seg);
if (bit_offset == -1)
{
struct bit_info *bi = xmalloc (sizeof (struct bit_info));
/* We don't know the previous offset at this time, so store the
info we need and figure it out later. */
expressionS size_exp;
size_exp.X_op = O_constant;
size_exp.X_add_number = size;
bi->seg = now_seg;
bi->type = TYPE_FIELD;
bi->value = value;
p = frag_var (rs_machine_dependent,
4, 1, (relax_substateT) 0,
make_expr_symbol (&size_exp), (offsetT) 0,
(char *) bi);
goto getout;
}
else if (bit_offset == 0 || bit_offset + size > 16)
{
/* Align a new field. */
p = frag_more (2);
frag_now->tc_frag_data = 0;
alloc_frag = frag_now;
}
else
{
/* Put the new value entirely within the existing one. */
p = alloc_frag == frag_now ?
frag_now->fr_literal + frag_now_fix_octets () - 2 :
alloc_frag->fr_literal;
if (label != NULL)
{
symbol_set_frag (label, alloc_frag);
if (alloc_frag == frag_now)
S_SET_VALUE (label, frag_now_fix () - 1);
label = NULL;
}
}
value <<= 16 - alloc_frag->tc_frag_data - size;
/* OR in existing value. */
if (alloc_frag->tc_frag_data)
value |= ((unsigned short) p[1] << 8) | p[0];
md_number_to_chars (p, value, 2);
alloc_frag->tc_frag_data += size;
if (alloc_frag->tc_frag_data == 16)
alloc_frag->tc_frag_data = 0;
}
}
getout:
demand_empty_rest_of_line ();
}
/* Ideally, we want to check SEC_LOAD and SEC_HAS_CONTENTS, but those aren't
available yet. seg_info ()->bss is the next best thing. */
static int
tic54x_initialized_section (segT seg)
{
return !seg_info (seg)->bss;
}
/* .clink ["section name"]
Marks the section as conditionally linked (link only if contents are
referenced elsewhere.
Without a name, refers to the current initialized section.
Name is required for uninitialized sections. */
static void
tic54x_clink (int ignored ATTRIBUTE_UNUSED)
{
segT seg = now_seg;
ILLEGAL_WITHIN_STRUCT ();
if (*input_line_pointer == '\"')
{
char *section_name = ++input_line_pointer;
char *name;
while (is_a_char (next_char_of_string ()))
;
know (input_line_pointer[-1] == '\"');
input_line_pointer[-1] = 0;
name = xmalloc (input_line_pointer - section_name + 1);
strcpy (name, section_name);
seg = bfd_get_section_by_name (stdoutput, name);
if (seg == NULL)
{
as_bad (_("Unrecognized section '%s'"), section_name);
ignore_rest_of_line ();
return;
}
}
else
{
if (!tic54x_initialized_section (seg))
{
as_bad (_("Current section is unitialized, "
"section name required for .clink"));
ignore_rest_of_line ();
return;
}
}
seg->flags |= SEC_TIC54X_CLINK;
demand_empty_rest_of_line ();
}
/* Change the default include directory to be the current source file's
directory, instead of the current working directory. If DOT is non-zero,
set to "." instead. */
static void
tic54x_set_default_include (int dot)
{
char *dir = ".";
char *tmp = NULL;
if (!dot)
{
char *curfile;
unsigned lineno;
as_where (&curfile, &lineno);
dir = strcpy (xmalloc (strlen (curfile) + 1), curfile);
tmp = strrchr (dir, '/');
}
if (tmp != NULL)
{
int len;
*tmp = '\0';
len = strlen (dir);
if (include_dir_count == 0)
{
include_dirs = (char **) xmalloc (sizeof (*include_dirs));
include_dir_count = 1;
}
include_dirs[0] = dir;
if (len > include_dir_maxlen)
include_dir_maxlen = len;
}
else if (include_dirs != NULL)
include_dirs[0] = ".";
}
/* .include "filename" | filename
.copy "filename" | filename
FIXME 'include' file should be omitted from any output listing,
'copy' should be included in any output listing
FIXME -- prevent any included files from changing listing (compat only)
FIXME -- need to include source file directory in search path; what's a
good way to do this?
Entering/exiting included/copied file clears all local labels. */
static void
tic54x_include (int ignored ATTRIBUTE_UNUSED)
{
char newblock[] = " .newblock\n";
char *filename;
char *input;
int len, c = -1;
ILLEGAL_WITHIN_STRUCT ();
SKIP_WHITESPACE ();
if (*input_line_pointer == '"')
{
filename = demand_copy_C_string (&len);
demand_empty_rest_of_line ();
}
else
{
filename = input_line_pointer;
while (!is_end_of_line[(int) *input_line_pointer])
++input_line_pointer;
c = *input_line_pointer;
*input_line_pointer = '\0';
filename = strcpy (xmalloc (strlen (filename) + 1), filename);
*input_line_pointer = c;
demand_empty_rest_of_line ();
}
/* Insert a partial line with the filename (for the sake of s_include)
and a .newblock.
The included file will be inserted before the newblock, so that the
newblock is executed after the included file is processed. */
input = xmalloc (sizeof (newblock) + strlen (filename) + 4);
sprintf (input, "\"%s\"\n%s", filename, newblock);
input_scrub_insert_line (input);
tic54x_clear_local_labels (0);
tic54x_set_default_include (0);
s_include (0);
}
static void
tic54x_message (int type)
{
char *msg;
char c;
int len;
ILLEGAL_WITHIN_STRUCT ();
if (*input_line_pointer == '"')
msg = demand_copy_C_string (&len);
else
{
msg = input_line_pointer;
while (!is_end_of_line[(int) *input_line_pointer])
++input_line_pointer;
c = *input_line_pointer;
*input_line_pointer = 0;
msg = strcpy (xmalloc (strlen (msg) + 1), msg);
*input_line_pointer = c;
}
switch (type)
{
case 'm':
as_tsktsk ("%s", msg);
break;
case 'w':
as_warn ("%s", msg);
break;
case 'e':
as_bad ("%s", msg);
break;
}
demand_empty_rest_of_line ();
}
/* .label <symbol>
Define a special symbol that refers to the loadtime address rather than the
runtime address within the current section.
This symbol gets a special storage class so that when it is resolved, it is
resolved relative to the load address (lma) of the section rather than the
run address (vma). */
static void
tic54x_label (int ignored ATTRIBUTE_UNUSED)
{
char *name;
symbolS *symbolP;
int c;
ILLEGAL_WITHIN_STRUCT ();
c = get_symbol_name (&name);
symbolP = colon (name);
S_SET_STORAGE_CLASS (symbolP, C_STATLAB);
(void) restore_line_pointer (c);
demand_empty_rest_of_line ();
}
/* .mmregs
Install all memory-mapped register names into the symbol table as
absolute local symbols. */
static void
tic54x_mmregs (int ignored ATTRIBUTE_UNUSED)
{
symbol *sym;
ILLEGAL_WITHIN_STRUCT ();
for (sym = (symbol *) mmregs; sym->name; sym++)
{
symbolS *symbolP = symbol_new (sym->name, absolute_section,
(valueT) sym->value, &zero_address_frag);
SF_SET_LOCAL (symbolP);
symbol_table_insert (symbolP);
}
}
/* .loop [count]
Count defaults to 1024. */
static void
tic54x_loop (int count)
{
ILLEGAL_WITHIN_STRUCT ();
SKIP_WHITESPACE ();
if (!is_end_of_line[(int) *input_line_pointer])
count = get_absolute_expression ();
do_repeat (count, "LOOP", "ENDLOOP");
}
/* Normally, endloop gets eaten by the preceding loop. */
static void
tic54x_endloop (int ignore ATTRIBUTE_UNUSED)
{
as_bad (_("ENDLOOP without corresponding LOOP"));
ignore_rest_of_line ();
}
/* .break [condition]. */
static void
tic54x_break (int ignore ATTRIBUTE_UNUSED)
{
int cond = 1;
ILLEGAL_WITHIN_STRUCT ();
SKIP_WHITESPACE ();
if (!is_end_of_line[(int) *input_line_pointer])
cond = get_absolute_expression ();
if (cond)
end_repeat (substitution_line ? 1 : 0);
}
static void
set_address_mode (int mode)
{
amode = mode;
if (mode == far_mode)
{
symbolS *symbolP = symbol_new ("__allow_far", absolute_section,
(valueT) 1, &zero_address_frag);
SF_SET_LOCAL (symbolP);
symbol_table_insert (symbolP);
}
}
static int address_mode_needs_set = 1;
static void
tic54x_address_mode (int mode)
{
if (assembly_begun && amode != (unsigned) mode)
{
as_bad (_("Mixing of normal and extended addressing not supported"));
ignore_rest_of_line ();
return;
}
if (mode == far_mode && cpu != VNONE && cpu != V548 && cpu != V549)
{
as_bad (_("Extended addressing not supported on the specified CPU"));
ignore_rest_of_line ();
return;
}
set_address_mode (mode);
demand_empty_rest_of_line ();
}
/* .sblock "section"|section [,...,"section"|section]
Designate initialized sections for blocking. */
static void
tic54x_sblock (int ignore ATTRIBUTE_UNUSED)
{
int c = ',';
ILLEGAL_WITHIN_STRUCT ();
while (c == ',')
{
segT seg;
char *name;
if (*input_line_pointer == '"')
{
int len;
name = demand_copy_C_string (&len);
}
else
{
char *section_name;
c = get_symbol_name (§ion_name);
name = xmalloc (strlen (section_name) + 1);
strcpy (name, section_name);
(void) restore_line_pointer (c);
}
seg = bfd_get_section_by_name (stdoutput, name);
if (seg == NULL)
{
as_bad (_("Unrecognized section '%s'"), name);
ignore_rest_of_line ();
return;
}
else if (!tic54x_initialized_section (seg))
{
as_bad (_(".sblock may be used for initialized sections only"));
ignore_rest_of_line ();
return;
}
seg->flags |= SEC_TIC54X_BLOCK;
c = *input_line_pointer;
if (!is_end_of_line[(int) c])
++input_line_pointer;
}
demand_empty_rest_of_line ();
}
/* symbol .set value
symbol .equ value
value must be defined externals; no forward-referencing allowed
symbols assigned with .set/.equ may not be redefined. */
static void
tic54x_set (int ignore ATTRIBUTE_UNUSED)
{
symbolS *symbolP;
char *name;
ILLEGAL_WITHIN_STRUCT ();
if (!line_label)
{
as_bad (_("Symbol missing for .set/.equ"));
ignore_rest_of_line ();
return;
}
name = xstrdup (S_GET_NAME (line_label));
line_label = NULL;
if ((symbolP = symbol_find (name)) == NULL
&& (symbolP = md_undefined_symbol (name)) == NULL)
{
symbolP = symbol_new (name, absolute_section, 0, &zero_address_frag);
S_SET_STORAGE_CLASS (symbolP, C_STAT);
}
free (name);
S_SET_DATA_TYPE (symbolP, T_INT);
S_SET_SEGMENT (symbolP, absolute_section);
symbol_table_insert (symbolP);
pseudo_set (symbolP);
demand_empty_rest_of_line ();
}
/* .fclist
.fcnolist
List false conditional blocks. */
static void
tic54x_fclist (int show)
{
if (show)
listing &= ~LISTING_NOCOND;
else
listing |= LISTING_NOCOND;
demand_empty_rest_of_line ();
}
static void
tic54x_sslist (int show)
{
ILLEGAL_WITHIN_STRUCT ();
listing_sslist = show;
}
/* .var SYM[,...,SYMN]
Define a substitution string to be local to a macro. */
static void
tic54x_var (int ignore ATTRIBUTE_UNUSED)
{
static char empty[] = "";
char *name;
int c;
ILLEGAL_WITHIN_STRUCT ();
if (macro_level == 0)
{
as_bad (_(".var may only be used within a macro definition"));
ignore_rest_of_line ();
return;
}
do
{
if (!ISALPHA (*input_line_pointer))
{
as_bad (_("Substitution symbols must begin with a letter"));
ignore_rest_of_line ();
return;
}
c = get_symbol_name (&name);
/* .var symbols start out with a null string. */
name = strcpy (xmalloc (strlen (name) + 1), name);
hash_insert (subsym_hash[macro_level], name, empty);
c = restore_line_pointer (c);
if (c == ',')
{
++input_line_pointer;
if (is_end_of_line[(int) *input_line_pointer])
c = *input_line_pointer;
}
}
while (c == ',');
demand_empty_rest_of_line ();
}
/* .mlib <macro library filename>
Macro libraries are archived (standard AR-format) text macro definitions
Expand the file and include it.
FIXME need to try the source file directory as well. */
static void
tic54x_mlib (int ignore ATTRIBUTE_UNUSED)
{
char *filename;
char *path;
int len, i;
bfd *abfd, *mbfd;
ILLEGAL_WITHIN_STRUCT ();
/* Parse the filename. */
if (*input_line_pointer == '"')
{
if ((filename = demand_copy_C_string (&len)) == NULL)
return;
}
else
{
SKIP_WHITESPACE ();
len = 0;
while (!is_end_of_line[(int) *input_line_pointer]
&& !ISSPACE (*input_line_pointer))
{
obstack_1grow (¬es, *input_line_pointer);
++input_line_pointer;
++len;
}
obstack_1grow (¬es, '\0');
filename = obstack_finish (¬es);
}
demand_empty_rest_of_line ();
tic54x_set_default_include (0);
path = xmalloc ((unsigned long) len + include_dir_maxlen + 5);
for (i = 0; i < include_dir_count; i++)
{
FILE *try;
strcpy (path, include_dirs[i]);
strcat (path, "/");
strcat (path, filename);
if ((try = fopen (path, "r")) != NULL)
{
fclose (try);
break;
}
}
if (i >= include_dir_count)
{
free (path);
path = filename;
}
/* FIXME: if path is found, malloc'd storage is not freed. Of course, this
happens all over the place, and since the assembler doesn't usually keep
running for a very long time, it really doesn't matter. */
register_dependency (path);
/* Expand all archive entries to temporary files and include them. */
abfd = bfd_openr (path, NULL);
if (!abfd)
{
as_bad (_("can't open macro library file '%s' for reading: %s"),
path, bfd_errmsg (bfd_get_error ()));
ignore_rest_of_line ();
return;
}
if (!bfd_check_format (abfd, bfd_archive))
{
as_bad (_("File '%s' not in macro archive format"), path);
ignore_rest_of_line ();
return;
}
/* Open each BFD as binary (it should be straight ASCII text). */
for (mbfd = bfd_openr_next_archived_file (abfd, NULL);
mbfd != NULL; mbfd = bfd_openr_next_archived_file (abfd, mbfd))
{
/* Get a size at least as big as the archive member. */
bfd_size_type size = bfd_get_size (mbfd);
char *buf = xmalloc (size);
char *fname = tmpnam (NULL);
FILE *ftmp;
/* We're not sure how big it is, but it will be smaller than "size". */
size = bfd_bread (buf, size, mbfd);
/* Write to a temporary file, then use s_include to include it
a bit of a hack. */
ftmp = fopen (fname, "w+b");
fwrite ((void *) buf, size, 1, ftmp);
if (size == 0 || buf[size - 1] != '\n')
fwrite ("\n", 1, 1, ftmp);
fclose (ftmp);
free (buf);
input_scrub_insert_file (fname);
unlink (fname);
}
}
const pseudo_typeS md_pseudo_table[] =
{
{ "algebraic", s_ignore , 0 },
{ "align" , tic54x_align_words , 128 },
{ "ascii" , tic54x_stringer , 'p' },
{ "asciz" , tic54x_stringer , 'P' },
{ "even" , tic54x_align_words , 2 },
{ "asg" , tic54x_asg , 0 },
{ "eval" , tic54x_eval , 0 },
{ "bss" , tic54x_bss , 0 },
{ "byte" , tic54x_cons , 'b' },
{ "ubyte" , tic54x_cons , 'B' },
{ "char" , tic54x_cons , 'c' },
{ "uchar" , tic54x_cons , 'C' },
{ "clink" , tic54x_clink , 0 },
{ "c_mode" , tic54x_address_mode , c_mode },
{ "copy" , tic54x_include , 'c' },
{ "include" , tic54x_include , 'i' },
{ "data" , tic54x_sect , 'd' },
{ "double" , tic54x_float_cons , 'd' },
{ "ldouble" , tic54x_float_cons , 'l' },
{ "drlist" , s_ignore , 0 },
{ "drnolist" , s_ignore , 0 },
{ "emsg" , tic54x_message , 'e' },
{ "mmsg" , tic54x_message , 'm' },
{ "wmsg" , tic54x_message , 'w' },
{ "far_mode" , tic54x_address_mode , far_mode },
{ "fclist" , tic54x_fclist , 1 },
{ "fcnolist" , tic54x_fclist , 0 },
{ "field" , tic54x_field , -1 },
{ "float" , tic54x_float_cons , 'f' },
{ "xfloat" , tic54x_float_cons , 'x' },
{ "global" , tic54x_global , 'g' },
{ "def" , tic54x_global , 'd' },
{ "ref" , tic54x_global , 'r' },
{ "half" , tic54x_cons , 'h' },
{ "uhalf" , tic54x_cons , 'H' },
{ "short" , tic54x_cons , 's' },
{ "ushort" , tic54x_cons , 'S' },
{ "if" , s_if , (int) O_ne },
{ "elseif" , s_elseif , (int) O_ne },
{ "else" , s_else , 0 },
{ "endif" , s_endif , 0 },
{ "int" , tic54x_cons , 'i' },
{ "uint" , tic54x_cons , 'I' },
{ "word" , tic54x_cons , 'w' },
{ "uword" , tic54x_cons , 'W' },
{ "label" , tic54x_label , 0 }, /* Loadtime
address. */
{ "length" , s_ignore , 0 },
{ "width" , s_ignore , 0 },
{ "long" , tic54x_cons , 'l' },
{ "ulong" , tic54x_cons , 'L' },
{ "xlong" , tic54x_cons , 'x' },
{ "loop" , tic54x_loop , 1024 },
{ "break" , tic54x_break , 0 },
{ "endloop" , tic54x_endloop , 0 },
{ "mlib" , tic54x_mlib , 0 },
{ "mlist" , s_ignore , 0 },
{ "mnolist" , s_ignore , 0 },
{ "mmregs" , tic54x_mmregs , 0 },
{ "newblock" , tic54x_clear_local_labels, 0 },
{ "option" , s_ignore , 0 },
{ "p2align" , tic54x_p2align , 0 },
{ "sblock" , tic54x_sblock , 0 },
{ "sect" , tic54x_sect , '*' },
{ "set" , tic54x_set , 0 },
{ "equ" , tic54x_set , 0 },
{ "space" , tic54x_space , 0 },
{ "bes" , tic54x_space , 1 },
{ "sslist" , tic54x_sslist , 1 },
{ "ssnolist" , tic54x_sslist , 0 },
{ "string" , tic54x_stringer , 's' },
{ "pstring" , tic54x_stringer , 'p' },
{ "struct" , tic54x_struct , 0 },
{ "tag" , tic54x_tag , 0 },
{ "endstruct", tic54x_endstruct , 0 },
{ "tab" , s_ignore , 0 },
{ "text" , tic54x_sect , 't' },
{ "union" , tic54x_struct , 1 },
{ "endunion" , tic54x_endstruct , 1 },
{ "usect" , tic54x_usect , 0 },
{ "var" , tic54x_var , 0 },
{ "version" , tic54x_version , 0 },
{0 , 0 , 0 }
};
int
md_parse_option (int c, char *arg)
{
switch (c)
{
default:
return 0;
case OPTION_COFF_VERSION:
{
int version = atoi (arg);
if (version != 0 && version != 1 && version != 2)
as_fatal (_("Bad COFF version '%s'"), arg);
/* FIXME -- not yet implemented. */
break;
}
case OPTION_CPU_VERSION:
{
cpu = lookup_version (arg);
cpu_needs_set = 1;
if (cpu == VNONE)
as_fatal (_("Bad CPU version '%s'"), arg);
break;
}
case OPTION_ADDRESS_MODE:
amode = far_mode;
address_mode_needs_set = 1;
break;
case OPTION_STDERR_TO_FILE:
{
char *filename = arg;
FILE *fp = fopen (filename, "w+");
if (fp == NULL)
as_fatal (_("Can't redirect stderr to the file '%s'"), filename);
fclose (fp);
if ((fp = freopen (filename, "w+", stderr)) == NULL)
as_fatal (_("Can't redirect stderr to the file '%s'"), filename);
break;
}
}
return 1;
}
/* Create a "local" substitution string hash table for a new macro level
Some docs imply that macros have to use .newblock in order to be able
to re-use a local label. We effectively do an automatic .newblock by
deleting the local label hash between macro invocations. */
void
tic54x_macro_start (void)
{
++macro_level;
subsym_hash[macro_level] = hash_new ();
local_label_hash[macro_level] = hash_new ();
}
void
tic54x_macro_info (const macro_entry *macro)
{
const formal_entry *entry;
/* Put the formal args into the substitution symbol table. */
for (entry = macro->formals; entry; entry = entry->next)
{
char *name = strncpy (xmalloc (entry->name.len + 1),
entry->name.ptr, entry->name.len);
char *value = strncpy (xmalloc (entry->actual.len + 1),
entry->actual.ptr, entry->actual.len);
name[entry->name.len] = '\0';
value[entry->actual.len] = '\0';
hash_insert (subsym_hash[macro_level], name, value);
}
}
/* Get rid of this macro's .var's, arguments, and local labels. */
void
tic54x_macro_end (void)
{
hash_die (subsym_hash[macro_level]);
subsym_hash[macro_level] = NULL;
hash_die (local_label_hash[macro_level]);
local_label_hash[macro_level] = NULL;
--macro_level;
}
static int
subsym_symlen (char *a, char *ignore ATTRIBUTE_UNUSED)
{
return strlen (a);
}
/* Compare symbol A to string B. */
static int
subsym_symcmp (char *a, char *b)
{
return strcmp (a, b);
}
/* Return the index of the first occurrence of B in A, or zero if none
assumes b is an integer char value as a string. Index is one-based. */
static int
subsym_firstch (char *a, char *b)
{
int val = atoi (b);
char *tmp = strchr (a, val);
return tmp ? tmp - a + 1 : 0;
}
/* Similar to firstch, but returns index of last occurrence of B in A. */
static int
subsym_lastch (char *a, char *b)
{
int val = atoi (b);
char *tmp = strrchr (a, val);
return tmp ? tmp - a + 1 : 0;
}
/* Returns 1 if string A is defined in the symbol table (NOT the substitution
symbol table). */
static int
subsym_isdefed (char *a, char *ignore ATTRIBUTE_UNUSED)
{
symbolS *symbolP = symbol_find (a);
return symbolP != NULL;
}
/* Assign first member of comma-separated list B (e.g. "1,2,3") to the symbol
A, or zero if B is a null string. Both arguments *must* be substitution
symbols, unsubstituted. */
static int
subsym_ismember (char *sym, char *list)
{
char *elem, *ptr, *listv;
if (!list)
return 0;
listv = subsym_lookup (list, macro_level);
if (!listv)
{
as_bad (_("Undefined substitution symbol '%s'"), list);
ignore_rest_of_line ();
return 0;
}
ptr = elem = xmalloc (strlen (listv) + 1);
strcpy (elem, listv);
while (*ptr && *ptr != ',')
++ptr;
*ptr++ = 0;
subsym_create_or_replace (sym, elem);
/* Reassign the list. */
subsym_create_or_replace (list, ptr);
/* Assume this value, docs aren't clear. */
return *list != 0;
}
/* Return zero if not a constant; otherwise:
1 if binary
2 if octal
3 if hexadecimal
4 if character
5 if decimal. */
static int
subsym_iscons (char *a, char *ignore ATTRIBUTE_UNUSED)
{
expressionS expn;
parse_expression (a, &expn);
if (expn.X_op == O_constant)
{
int len = strlen (a);
switch (TOUPPER (a[len - 1]))
{
case 'B':
return 1;
case 'Q':
return 2;
case 'H':
return 3;
case '\'':
return 4;
default:
break;
}
/* No suffix; either octal, hex, or decimal. */
if (*a == '0' && len > 1)
{
if (TOUPPER (a[1]) == 'X')
return 3;
return 2;
}
return 5;
}
return 0;
}
/* Return 1 if A is a valid symbol name. Expects string input. */
static int
subsym_isname (char *a, char *ignore ATTRIBUTE_UNUSED)
{
if (!is_name_beginner (*a))
return 0;
while (*a)
{
if (!is_part_of_name (*a))
return 0;
++a;
}
return 1;
}
/* Return whether the string is a register; accepts ar0-7, unless .mmregs has
been seen; if so, recognize any memory-mapped register.
Note this does not recognize "A" or "B" accumulators. */
static int
subsym_isreg (char *a, char *ignore ATTRIBUTE_UNUSED)
{
if (hash_find (reg_hash, a))
return 1;
if (hash_find (mmreg_hash, a))
return 1;
return 0;
}
/* Return the structure size, given the stag. */
static int
subsym_structsz (char *name, char *ignore ATTRIBUTE_UNUSED)
{
struct stag *stag = (struct stag *) hash_find (stag_hash, name);
if (stag)
return stag->size;
return 0;
}
/* If anybody actually uses this, they can fix it :)
FIXME I'm not sure what the "reference point" of a structure is. It might
be either the initial offset given .struct, or it may be the offset of the
structure within another structure, or it might be something else
altogether. since the TI assembler doesn't seem to ever do anything but
return zero, we punt and return zero. */
static int
subsym_structacc (char *stag_name ATTRIBUTE_UNUSED,
char *ignore ATTRIBUTE_UNUSED)
{
return 0;
}
static float
math_ceil (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) ceil (arg1);
}
static float
math_cvi (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (int) arg1;
}
static float
math_floor (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) floor (arg1);
}
static float
math_fmod (float arg1, float arg2)
{
return (int) arg1 % (int) arg2;
}
static float
math_int (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return ((float) ((int) arg1)) == arg1;
}
static float
math_round (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return arg1 > 0 ? (int) (arg1 + 0.5) : (int) (arg1 - 0.5);
}
static float
math_sgn (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (arg1 < 0) ? -1 : (arg1 ? 1 : 0);
}
static float
math_trunc (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (int) arg1;
}
static float
math_acos (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) acos (arg1);
}
static float
math_asin (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) asin (arg1);
}
static float
math_atan (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) atan (arg1);
}
static float
math_atan2 (float arg1, float arg2)
{
return (float) atan2 (arg1, arg2);
}
static float
math_cosh (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) cosh (arg1);
}
static float
math_cos (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) cos (arg1);
}
static float
math_cvf (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) arg1;
}
static float
math_exp (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) exp (arg1);
}
static float
math_fabs (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) fabs (arg1);
}
/* expr1 * 2^expr2. */
static float
math_ldexp (float arg1, float arg2)
{
return arg1 * (float) pow (2.0, arg2);
}
static float
math_log10 (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) log10 (arg1);
}
static float
math_log (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) log (arg1);
}
static float
math_max (float arg1, float arg2)
{
return (arg1 > arg2) ? arg1 : arg2;
}
static float
math_min (float arg1, float arg2)
{
return (arg1 < arg2) ? arg1 : arg2;
}
static float
math_pow (float arg1, float arg2)
{
return (float) pow (arg1, arg2);
}
static float
math_sin (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) sin (arg1);
}
static float
math_sinh (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) sinh (arg1);
}
static float
math_sqrt (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) sqrt (arg1);
}
static float
math_tan (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) tan (arg1);
}
static float
math_tanh (float arg1, float ignore ATTRIBUTE_UNUSED)
{
return (float) tanh (arg1);
}
/* Built-in substitution symbol functions and math functions. */
typedef struct
{
char *name;
int (*proc) (char *, char *);
int nargs;
} subsym_proc_entry;
static const subsym_proc_entry subsym_procs[] =
{
/* Assembler built-in string substitution functions. */
{ "$symlen", subsym_symlen, 1, },
{ "$symcmp", subsym_symcmp, 2, },
{ "$firstch", subsym_firstch, 2, },
{ "$lastch", subsym_lastch, 2, },
{ "$isdefed", subsym_isdefed, 1, },
{ "$ismember", subsym_ismember, 2, },
{ "$iscons", subsym_iscons, 1, },
{ "$isname", subsym_isname, 1, },
{ "$isreg", subsym_isreg, 1, },
{ "$structsz", subsym_structsz, 1, },
{ "$structacc", subsym_structacc, 1, },
{ NULL, NULL, 0 },
};
typedef struct
{
char *name;
float (*proc) (float, float);
int nargs;
int int_return;
} math_proc_entry;
static const math_proc_entry math_procs[] =
{
/* Integer-returning built-in math functions. */
{ "$cvi", math_cvi, 1, 1 },
{ "$int", math_int, 1, 1 },
{ "$sgn", math_sgn, 1, 1 },
/* Float-returning built-in math functions. */
{ "$acos", math_acos, 1, 0 },
{ "$asin", math_asin, 1, 0 },
{ "$atan", math_atan, 1, 0 },
{ "$atan2", math_atan2, 2, 0 },
{ "$ceil", math_ceil, 1, 0 },
{ "$cosh", math_cosh, 1, 0 },
{ "$cos", math_cos, 1, 0 },
{ "$cvf", math_cvf, 1, 0 },
{ "$exp", math_exp, 1, 0 },
{ "$fabs", math_fabs, 1, 0 },
{ "$floor", math_floor, 1, 0 },
{ "$fmod", math_fmod, 2, 0 },
{ "$ldexp", math_ldexp, 2, 0 },
{ "$log10", math_log10, 1, 0 },
{ "$log", math_log, 1, 0 },
{ "$max", math_max, 2, 0 },
{ "$min", math_min, 2, 0 },
{ "$pow", math_pow, 2, 0 },
{ "$round", math_round, 1, 0 },
{ "$sin", math_sin, 1, 0 },
{ "$sinh", math_sinh, 1, 0 },
{ "$sqrt", math_sqrt, 1, 0 },
{ "$tan", math_tan, 1, 0 },
{ "$tanh", math_tanh, 1, 0 },
{ "$trunc", math_trunc, 1, 0 },
{ NULL, NULL, 0, 0 },
};
void
md_begin (void)
{
insn_template *tm;
symbol *sym;
const subsym_proc_entry *subsym_proc;
const math_proc_entry *math_proc;
const char *hash_err;
char **symname;
char *TIC54X_DIR = getenv ("TIC54X_DIR");
char *A_DIR = TIC54X_DIR ? TIC54X_DIR : getenv ("A_DIR");
local_label_id = 0;
/* Look for A_DIR and add it to the include list. */
if (A_DIR != NULL)
{
char *tmp = xstrdup (A_DIR);
do
{
char *next = strchr (tmp, ';');
if (next)
*next++ = '\0';
add_include_dir (tmp);
tmp = next;
}
while (tmp != NULL);
}
op_hash = hash_new ();
for (tm = (insn_template *) tic54x_optab; tm->name; tm++)
{
if (hash_find (op_hash, tm->name))
continue;
hash_err = hash_insert (op_hash, tm->name, (char *) tm);
if (hash_err)
as_fatal ("Internal Error: Can't hash %s: %s",
tm->name, hash_err);
}
parop_hash = hash_new ();
for (tm = (insn_template *) tic54x_paroptab; tm->name; tm++)
{
if (hash_find (parop_hash, tm->name))
continue;
hash_err = hash_insert (parop_hash, tm->name, (char *) tm);
if (hash_err)
as_fatal ("Internal Error: Can't hash %s: %s",
tm->name, hash_err);
}
reg_hash = hash_new ();
for (sym = (symbol *) regs; sym->name; sym++)
{
/* Add basic registers to the symbol table. */
symbolS *symbolP = symbol_new (sym->name, absolute_section,
(valueT) sym->value, &zero_address_frag);
SF_SET_LOCAL (symbolP);
symbol_table_insert (symbolP);
hash_err = hash_insert (reg_hash, sym->name, (char *) sym);
}
for (sym = (symbol *) mmregs; sym->name; sym++)
hash_err = hash_insert (reg_hash, sym->name, (char *) sym);
mmreg_hash = hash_new ();
for (sym = (symbol *) mmregs; sym->name; sym++)
hash_err = hash_insert (mmreg_hash, sym->name, (char *) sym);
cc_hash = hash_new ();
for (sym = (symbol *) condition_codes; sym->name; sym++)
hash_err = hash_insert (cc_hash, sym->name, (char *) sym);
cc2_hash = hash_new ();
for (sym = (symbol *) cc2_codes; sym->name; sym++)
hash_err = hash_insert (cc2_hash, sym->name, (char *) sym);
cc3_hash = hash_new ();
for (sym = (symbol *) cc3_codes; sym->name; sym++)
hash_err = hash_insert (cc3_hash, sym->name, (char *) sym);
sbit_hash = hash_new ();
for (sym = (symbol *) status_bits; sym->name; sym++)
hash_err = hash_insert (sbit_hash, sym->name, (char *) sym);
misc_symbol_hash = hash_new ();
for (symname = (char **) misc_symbols; *symname; symname++)
hash_err = hash_insert (misc_symbol_hash, *symname, *symname);
/* Only the base substitution table and local label table are initialized;
the others (for local macro substitution) get instantiated as needed. */
local_label_hash[0] = hash_new ();
subsym_hash[0] = hash_new ();
for (subsym_proc = subsym_procs; subsym_proc->name; subsym_proc++)
hash_err = hash_insert (subsym_hash[0], subsym_proc->name,
(char *) subsym_proc);
math_hash = hash_new ();
for (math_proc = math_procs; math_proc->name; math_proc++)
{
/* Insert into the main subsym hash for recognition; insert into
the math hash to actually store information. */
hash_err = hash_insert (subsym_hash[0], math_proc->name,
(char *) math_proc);
hash_err = hash_insert (math_hash, math_proc->name,
(char *) math_proc);
}
subsym_recurse_hash = hash_new ();
stag_hash = hash_new ();
}
static int
is_accumulator (struct opstruct *operand)
{
return strcasecmp (operand->buf, "a") == 0
|| strcasecmp (operand->buf, "b") == 0;
}
/* Return the number of operands found, or -1 on error, copying the
operands into the given array and the accompanying expressions into
the next array. */
static int
get_operands (struct opstruct operands[], char *line)
{
char *lptr = line;
int numexp = 0;
int expecting_operand = 0;
int i;
while (numexp < MAX_OPERANDS && !is_end_of_line[(int) *lptr])
{
int paren_not_balanced = 0;
char *op_start, *op_end;
while (*lptr && ISSPACE (*lptr))
++lptr;
op_start = lptr;
while (paren_not_balanced || *lptr != ',')
{
if (*lptr == '\0')
{
if (paren_not_balanced)
{
as_bad (_("Unbalanced parenthesis in operand %d"), numexp);
return -1;
}
else
break;
}
if (*lptr == '(')
++paren_not_balanced;
else if (*lptr == ')')
--paren_not_balanced;
++lptr;
}
op_end = lptr;
if (op_end != op_start)
{
int len = op_end - op_start;
strncpy (operands[numexp].buf, op_start, len);
operands[numexp].buf[len] = 0;
/* Trim trailing spaces; while the preprocessor gets rid of most,
there are weird usage patterns that can introduce them
(i.e. using strings for macro args). */
while (len > 0 && ISSPACE (operands[numexp].buf[len - 1]))
operands[numexp].buf[--len] = 0;
lptr = op_end;
++numexp;
}
else
{
if (expecting_operand || *lptr == ',')
{
as_bad (_("Expecting operand after ','"));
return -1;
}
}
if (*lptr == ',')
{
if (*++lptr == '\0')
{
as_bad (_("Expecting operand after ','"));
return -1;
}
expecting_operand = 1;
}
}
while (*lptr && ISSPACE (*lptr++))
;
if (!is_end_of_line[(int) *lptr])
{
as_bad (_("Extra junk on line"));
return -1;
}
/* OK, now parse them into expressions. */
for (i = 0; i < numexp; i++)
{
memset (&operands[i].exp, 0, sizeof (operands[i].exp));
if (operands[i].buf[0] == '#')
{
/* Immediate. */
parse_expression (operands[i].buf + 1, &operands[i].exp);
}
else if (operands[i].buf[0] == '@')
{
/* Direct notation. */
parse_expression (operands[i].buf + 1, &operands[i].exp);
}
else if (operands[i].buf[0] == '*')
{
/* Indirect. */
char *paren = strchr (operands[i].buf, '(');
/* Allow immediate syntax in the inner expression. */
if (paren && paren[1] == '#')
*++paren = '(';
/* Pull out the lk expression or SP offset, if present. */
if (paren != NULL)
{
int len = strlen (paren);
char *end = paren + len;
int c;
while (end[-1] != ')')
if (--end <= paren)
{
as_bad (_("Badly formed address expression"));
return -1;
}
c = *end;
*end = '\0';
parse_expression (paren, &operands[i].exp);
*end = c;
}
else
operands[i].exp.X_op = O_absent;
}
else
parse_expression (operands[i].buf, &operands[i].exp);
}
return numexp;
}
/* Predicates for different operand types. */
static int
is_immediate (struct opstruct *operand)
{
return *operand->buf == '#';
}
/* This is distinguished from immediate because some numbers must be constants
and must *not* have the '#' prefix. */
static int
is_absolute (struct opstruct *operand)
{
return operand->exp.X_op == O_constant && !is_immediate (operand);
}
/* Is this an indirect operand? */
static int
is_indirect (struct opstruct *operand)
{
return operand->buf[0] == '*';
}
/* Is this a valid dual-memory operand? */
static int
is_dual (struct opstruct *operand)
{
if (is_indirect (operand) && strncasecmp (operand->buf, "*ar", 3) == 0)
{
char *tmp = operand->buf + 3;
int arf;
int valid_mod;
arf = *tmp++ - '0';
/* Only allow *ARx, *ARx-, *ARx+, or *ARx+0%. */
valid_mod = *tmp == '\0' ||
strcasecmp (tmp, "-") == 0 ||
strcasecmp (tmp, "+") == 0 ||
strcasecmp (tmp, "+0%") == 0;
return arf >= 2 && arf <= 5 && valid_mod;
}
return 0;
}
static int
is_mmreg (struct opstruct *operand)
{
return (is_absolute (operand)
|| is_immediate (operand)
|| hash_find (mmreg_hash, operand->buf) != 0);
}
static int
is_type (struct opstruct *operand, enum optype type)
{
switch (type)
{
case OP_None:
return operand->buf[0] == 0;
case OP_Xmem:
case OP_Ymem:
return is_dual (operand);
case OP_Sind:
return is_indirect (operand);
case OP_xpmad_ms7:
/* This one *must* be immediate. */
return is_immediate (operand);
case OP_xpmad:
case OP_pmad:
case OP_PA:
case OP_dmad:
case OP_Lmem:
case OP_MMR:
return 1;
case OP_Smem:
/* Address may be a numeric, indirect, or an expression. */
return !is_immediate (operand);
case OP_MMRY:
case OP_MMRX:
return is_mmreg (operand);
case OP_SRC:
case OP_SRC1:
case OP_RND:
case OP_DST:
return is_accumulator (operand);
case OP_B:
return is_accumulator (operand) && TOUPPER (operand->buf[0]) == 'B';
case OP_A:
return is_accumulator (operand) && TOUPPER (operand->buf[0]) == 'A';
case OP_ARX:
return strncasecmp ("ar", operand->buf, 2) == 0
&& ISDIGIT (operand->buf[2]);
case OP_SBIT:
return hash_find (sbit_hash, operand->buf) != 0 || is_absolute (operand);
case OP_CC:
return hash_find (cc_hash, operand->buf) != 0;
case OP_CC2:
return hash_find (cc2_hash, operand->buf) != 0;
case OP_CC3:
return hash_find (cc3_hash, operand->buf) != 0
|| is_immediate (operand) || is_absolute (operand);
case OP_16:
return (is_immediate (operand) || is_absolute (operand))
&& operand->exp.X_add_number == 16;
case OP_N:
/* Allow st0 or st1 instead of a numeric. */
return is_absolute (operand) || is_immediate (operand) ||
strcasecmp ("st0", operand->buf) == 0 ||
strcasecmp ("st1", operand->buf) == 0;
case OP_12:
case OP_123:
return is_absolute (operand) || is_immediate (operand);
case OP_SHFT:
return (is_immediate (operand) || is_absolute (operand))
&& operand->exp.X_add_number >= 0 && operand->exp.X_add_number < 16;
case OP_SHIFT:
/* Let this one catch out-of-range values. */
return (is_immediate (operand) || is_absolute (operand))
&& operand->exp.X_add_number != 16;
case OP_BITC:
case OP_031:
case OP_k8:
return is_absolute (operand) || is_immediate (operand);
case OP_k8u:
return is_immediate (operand)
&& operand->exp.X_op == O_constant
&& operand->exp.X_add_number >= 0
&& operand->exp.X_add_number < 256;
case OP_lk:
case OP_lku:
/* Allow anything; assumes opcodes are ordered with Smem operands
versions first. */
return 1;
case OP_k5:
case OP_k3:
case OP_k9:
/* Just make sure it's an integer; check range later. */
return is_immediate (operand);
case OP_T:
return strcasecmp ("t", operand->buf) == 0 ||
strcasecmp ("treg", operand->buf) == 0;
case OP_TS:
return strcasecmp ("ts", operand->buf) == 0;
case OP_ASM:
return strcasecmp ("asm", operand->buf) == 0;
case OP_TRN:
return strcasecmp ("trn", operand->buf) == 0;
case OP_DP:
return strcasecmp ("dp", operand->buf) == 0;
case OP_ARP:
return strcasecmp ("arp", operand->buf) == 0;
default:
return 0;
}
}
static int
operands_match (tic54x_insn *insn,
struct opstruct *operands,
int opcount,
const enum optype *refoptype,
int minops,
int maxops)
{
int op = 0, refop = 0;
if (opcount == 0 && minops == 0)
return 1;
while (op <= maxops && refop <= maxops)
{
while (!is_type (&operands[op], OPTYPE (refoptype[refop])))
{
/* Skip an optional template operand if it doesn't agree
with the current operand. */
if (refoptype[refop] & OPT)
{
++refop;
--maxops;
if (refop > maxops)
return 0;
}
else
return 0;
}
/* Save the actual operand type for later use. */
operands[op].type = OPTYPE (refoptype[refop]);
++refop;
++op;
/* Have we matched them all yet? */
if (op == opcount)
{
while (op < maxops)
{
/* If a later operand is *not* optional, no match. */
if ((refoptype[refop] & OPT) == 0)
return 0;
/* Flag any implicit default OP_DST operands so we know to add
them explicitly when encoding the operand later. */
if (OPTYPE (refoptype[refop]) == OP_DST)
insn->using_default_dst = 1;
++refop;
++op;
}
return 1;
}
}
return 0;
}
/* 16-bit direct memory address
Explicit dmad operands are always in last word of insn (usually second
word, but bumped to third if lk addressing is used)
We allow *(dmad) notation because the TI assembler allows it.
XPC_CODE:
0 for 16-bit addresses
1 for full 23-bit addresses
2 for the upper 7 bits of a 23-bit address (LDX). */
static int
encode_dmad (tic54x_insn *insn, struct opstruct *operand, int xpc_code)
{
int op = 1 + insn->is_lkaddr;
/* Only allow *(dmad) expressions; all others are invalid. */
if (is_indirect (operand) && operand->buf[strlen (operand->buf) - 1] != ')')
{
as_bad (_("Invalid dmad syntax '%s'"), operand->buf);
return 0;
}
insn->opcode[op].addr_expr = operand->exp;
if (insn->opcode[op].addr_expr.X_op == O_constant)
{
valueT value = insn->opcode[op].addr_expr.X_add_number;
if (xpc_code == 1)
{
insn->opcode[0].word &= 0xFF80;
insn->opcode[0].word |= (value >> 16) & 0x7F;
insn->opcode[1].word = value & 0xFFFF;
}
else if (xpc_code == 2)
insn->opcode[op].word = (value >> 16) & 0xFFFF;
else
insn->opcode[op].word = value;
}
else
{
/* Do the fixup later; just store the expression. */
insn->opcode[op].word = 0;
insn->opcode[op].r_nchars = 2;
if (amode == c_mode)
insn->opcode[op].r_type = BFD_RELOC_TIC54X_16_OF_23;
else if (xpc_code == 1)
{
/* This relocation spans two words, so adjust accordingly. */
insn->opcode[0].addr_expr = operand->exp;
insn->opcode[0].r_type = BFD_RELOC_TIC54X_23;
insn->opcode[0].r_nchars = 4;
insn->opcode[0].unresolved = 1;
/* It's really 2 words, but we want to stop encoding after the
first, since we must encode both words at once. */
insn->words = 1;
}
else if (xpc_code == 2)
insn->opcode[op].r_type = BFD_RELOC_TIC54X_MS7_OF_23;
else
insn->opcode[op].r_type = BFD_RELOC_TIC54X_16_OF_23;
insn->opcode[op].unresolved = 1;
}
return 1;
}
/* 7-bit direct address encoding. */
static int
encode_address (tic54x_insn *insn, struct opstruct *operand)
{
/* Assumes that dma addresses are *always* in word 0 of the opcode. */
insn->opcode[0].addr_expr = operand->exp;
if (operand->exp.X_op == O_constant)
insn->opcode[0].word |= (operand->exp.X_add_number & 0x7F);
else
{
if (operand->exp.X_op == O_register)
as_bad (_("Use the .mmregs directive to use memory-mapped register names such as '%s'"), operand->buf);
/* Do the fixup later; just store the expression. */
insn->opcode[0].r_nchars = 1;
insn->opcode[0].r_type = BFD_RELOC_TIC54X_PARTLS7;
insn->opcode[0].unresolved = 1;
}
return 1;
}
static int
encode_indirect (tic54x_insn *insn, struct opstruct *operand)
{
int arf;
int mod;
if (insn->is_lkaddr)
{
/* lk addresses always go in the second insn word. */
mod = ((TOUPPER (operand->buf[1]) == 'A') ? 12 :
(operand->buf[1] == '(') ? 15 :
(strchr (operand->buf, '%') != NULL) ? 14 : 13);
arf = ((mod == 12) ? operand->buf[3] - '0' :
(mod == 15) ? 0 : operand->buf[4] - '0');
insn->opcode[1].addr_expr = operand->exp;
if (operand->exp.X_op == O_constant)
insn->opcode[1].word = operand->exp.X_add_number;
else
{
insn->opcode[1].word = 0;
insn->opcode[1].r_nchars = 2;
insn->opcode[1].r_type = BFD_RELOC_TIC54X_16_OF_23;
insn->opcode[1].unresolved = 1;
}
}
else if (strncasecmp (operand->buf, "*sp (", 4) == 0)
{
/* Stack offsets look the same as 7-bit direct addressing. */
return encode_address (insn, operand);
}
else
{
arf = (TOUPPER (operand->buf[1]) == 'A' ?
operand->buf[3] : operand->buf[4]) - '0';
if (operand->buf[1] == '+')
{
mod = 3; /* *+ARx */
if (insn->tm->flags & FL_SMR)
as_warn (_("Address mode *+ARx is write-only. "
"Results of reading are undefined."));
}
else if (operand->buf[4] == '\0')
mod = 0; /* *ARx */
else if (operand->buf[5] == '\0')
mod = (operand->buf[4] == '-' ? 1 : 2); /* *ARx+ / *ARx- */
else if (operand->buf[6] == '\0')
{
if (operand->buf[5] == '0')
mod = (operand->buf[4] == '-' ? 5 : 6); /* *ARx+0 / *ARx-0 */
else
mod = (operand->buf[4] == '-' ? 8 : 10);/* *ARx+% / *ARx-% */
}
else if (TOUPPER (operand->buf[6]) == 'B')
mod = (operand->buf[4] == '-' ? 4 : 7); /* ARx+0B / *ARx-0B */
else if (TOUPPER (operand->buf[6]) == '%')
mod = (operand->buf[4] == '-' ? 9 : 11); /* ARx+0% / *ARx - 0% */
else
{
as_bad (_("Unrecognized indirect address format \"%s\""),
operand->buf);
return 0;
}
}
insn->opcode[0].word |= 0x80 | (mod << 3) | arf;
return 1;
}
static int
encode_integer (tic54x_insn *insn,
struct opstruct *operand,
int which,
int min,
int max,
unsigned short mask)
{
long parse, integer;
insn->opcode[which].addr_expr = operand->exp;
if (operand->exp.X_op == O_constant)
{
parse = operand->exp.X_add_number;
/* Hack -- fixup for 16-bit hex quantities that get converted positive
instead of negative. */
if ((parse & 0x8000) && min == -32768 && max == 32767)
integer = (short) parse;
else
integer = parse;
if (integer >= min && integer <= max)
{
insn->opcode[which].word |= (integer & mask);
return 1;
}
as_bad (_("Operand '%s' out of range (%d <= x <= %d)"),
operand->buf, min, max);
}
else
{
if (insn->opcode[which].addr_expr.X_op == O_constant)
{
insn->opcode[which].word |=
insn->opcode[which].addr_expr.X_add_number & mask;
}
else
{
/* Do the fixup later; just store the expression. */
bfd_reloc_code_real_type rtype =
(mask == 0x1FF ? BFD_RELOC_TIC54X_PARTMS9 :
mask == 0xFFFF ? BFD_RELOC_TIC54X_16_OF_23 :
mask == 0x7F ? BFD_RELOC_TIC54X_PARTLS7 : BFD_RELOC_8);
int size = (mask == 0x1FF || mask == 0xFFFF) ? 2 : 1;
if (rtype == BFD_RELOC_8)
as_bad (_("Error in relocation handling"));
insn->opcode[which].r_nchars = size;
insn->opcode[which].r_type = rtype;
insn->opcode[which].unresolved = 1;
}
return 1;
}
return 0;
}
static int
encode_condition (tic54x_insn *insn, struct opstruct *operand)
{
symbol *cc = (symbol *) hash_find (cc_hash, operand->buf);
if (!cc)
{
as_bad (_("Unrecognized condition code \"%s\""), operand->buf);
return 0;
}
#define CC_GROUP 0x40
#define CC_ACC 0x08
#define CATG_A1 0x07
#define CATG_B1 0x30
#define CATG_A2 0x30
#define CATG_B2 0x0C
#define CATG_C2 0x03
/* Disallow group 1 conditions mixed with group 2 conditions
if group 1, allow only one category A and one category B
if group 2, allow only one each of category A, B, and C. */
if (((insn->opcode[0].word & 0xFF) != 0))
{
if ((insn->opcode[0].word & CC_GROUP) != (cc->value & CC_GROUP))
{
as_bad (_("Condition \"%s\" does not match preceding group"),
operand->buf);
return 0;
}
if (insn->opcode[0].word & CC_GROUP)
{
if ((insn->opcode[0].word & CC_ACC) != (cc->value & CC_ACC))
{
as_bad (_("Condition \"%s\" uses a different accumulator from "
"a preceding condition"),
operand->buf);
return 0;
}
if ((insn->opcode[0].word & CATG_A1) && (cc->value & CATG_A1))
{
as_bad (_("Only one comparison conditional allowed"));
return 0;
}
if ((insn->opcode[0].word & CATG_B1) && (cc->value & CATG_B1))
{
as_bad (_("Only one overflow conditional allowed"));
return 0;
}
}
else if ( ((insn->opcode[0].word & CATG_A2) && (cc->value & CATG_A2))
|| ((insn->opcode[0].word & CATG_B2) && (cc->value & CATG_B2))
|| ((insn->opcode[0].word & CATG_C2) && (cc->value & CATG_C2)))
{
as_bad (_("Duplicate %s conditional"), operand->buf);
return 0;
}
}
insn->opcode[0].word |= cc->value;
return 1;
}
static int
encode_cc3 (tic54x_insn *insn, struct opstruct *operand)
{
symbol *cc3 = (symbol *) hash_find (cc3_hash, operand->buf);
int value = cc3 ? cc3->value : operand->exp.X_add_number << 8;
if ((value & 0x0300) != value)
{
as_bad (_("Unrecognized condition code \"%s\""), operand->buf);
return 0;
}
insn->opcode[0].word |= value;
return 1;
}
static int
encode_arx (tic54x_insn *insn, struct opstruct *operand)
{
int arf = strlen (operand->buf) >= 3 ? operand->buf[2] - '0' : -1;
if (strncasecmp ("ar", operand->buf, 2) || arf < 0 || arf > 7)
{
as_bad (_("Invalid auxiliary register (use AR0-AR7)"));
return 0;
}
insn->opcode[0].word |= arf;
return 1;
}
static int
encode_cc2 (tic54x_insn *insn, struct opstruct *operand)
{
symbol *cc2 = (symbol *) hash_find (cc2_hash, operand->buf);
if (!cc2)
{
as_bad (_("Unrecognized condition code \"%s\""), operand->buf);
return 0;
}
insn->opcode[0].word |= cc2->value;
return 1;
}
static int
encode_operand (tic54x_insn *insn, enum optype type, struct opstruct *operand)
{
int ext = (insn->tm->flags & FL_EXT) != 0;
if (type == OP_MMR && operand->exp.X_op != O_constant)
{
/* Disallow long-constant addressing for memory-mapped addressing. */
if (insn->is_lkaddr)
{
as_bad (_("lk addressing modes are invalid for memory-mapped "
"register addressing"));
return 0;
}
type = OP_Smem;
/* Warn about *+ARx when used with MMR operands. */
if (strncasecmp (operand->buf, "*+ar", 4) == 0)
{
as_warn (_("Address mode *+ARx is not allowed in memory-mapped "
"register addressing. Resulting behavior is "
"undefined."));
}
}
switch (type)
{
case OP_None:
return 1;
case OP_dmad:
/* 16-bit immediate value. */
return encode_dmad (insn, operand, 0);
case OP_SRC:
if (TOUPPER (*operand->buf) == 'B')
{
insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 9);
if (insn->using_default_dst)
insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 8);
}
return 1;
case OP_RND:
/* Make sure this agrees with the OP_DST operand. */
if (!((TOUPPER (operand->buf[0]) == 'B') ^
((insn->opcode[0].word & (1 << 8)) != 0)))
{
as_bad (_("Destination accumulator for each part of this parallel "
"instruction must be different"));
return 0;
}
return 1;
case OP_SRC1:
case OP_DST:
if (TOUPPER (operand->buf[0]) == 'B')
insn->opcode[ext ? (1 + insn->is_lkaddr) : 0].word |= (1 << 8);
return 1;
case OP_Xmem:
case OP_Ymem:
{
int mod = (operand->buf[4] == '\0' ? 0 : /* *arx */
operand->buf[4] == '-' ? 1 : /* *arx- */
operand->buf[5] == '\0' ? 2 : 3); /* *arx+, *arx+0% */
int arf = operand->buf[3] - '0' - 2;
int code = (mod << 2) | arf;
insn->opcode[0].word |= (code << (type == OP_Xmem ? 4 : 0));
return 1;
}
case OP_Lmem:
case OP_Smem:
if (!is_indirect (operand))
return encode_address (insn, operand);
/* Fall through. */
case OP_Sind:
return encode_indirect (insn, operand);
case OP_xpmad_ms7:
return encode_dmad (insn, operand, 2);
case OP_xpmad:
return encode_dmad (insn, operand, 1);
case OP_PA:
case OP_pmad:
return encode_dmad (insn, operand, 0);
case OP_ARX:
return encode_arx (insn, operand);
case OP_MMRX:
case OP_MMRY:
case OP_MMR:
{
int value = operand->exp.X_add_number;
if (type == OP_MMR)
insn->opcode[0].word |= value;
else
{
if (value < 16 || value > 24)
{
as_bad (_("Memory mapped register \"%s\" out of range"),
operand->buf);
return 0;
}
if (type == OP_MMRX)
insn->opcode[0].word |= (value - 16) << 4;
else
insn->opcode[0].word |= (value - 16);
}
return 1;
}
case OP_B:
case OP_A:
return 1;
case OP_SHFT:
return encode_integer (insn, operand, ext + insn->is_lkaddr,
0, 15, 0xF);
case OP_SHIFT:
return encode_integer (insn, operand, ext + insn->is_lkaddr,
-16, 15, 0x1F);
case OP_lk:
return encode_integer (insn, operand, 1 + insn->is_lkaddr,
-32768, 32767, 0xFFFF);
case OP_CC:
return encode_condition (insn, operand);
case OP_CC2:
return encode_cc2 (insn, operand);
case OP_CC3:
return encode_cc3 (insn, operand);
case OP_BITC:
return encode_integer (insn, operand, 0, 0, 15, 0xF);
case OP_k8:
return encode_integer (insn, operand, 0, -128, 127, 0xFF);
case OP_123:
{
int value = operand->exp.X_add_number;
int code;
if (value < 1 || value > 3)
{
as_bad (_("Invalid operand (use 1, 2, or 3)"));
return 0;
}
code = value == 1 ? 0 : value == 2 ? 0x2 : 0x1;
insn->opcode[0].word |= (code << 8);
return 1;
}
case OP_031:
return encode_integer (insn, operand, 0, 0, 31, 0x1F);
case OP_k8u:
return encode_integer (insn, operand, 0, 0, 255, 0xFF);
case OP_lku:
return encode_integer (insn, operand, 1 + insn->is_lkaddr,
0, 65535, 0xFFFF);
case OP_SBIT:
{
symbol *sbit = (symbol *) hash_find (sbit_hash, operand->buf);
int value = is_absolute (operand) ?
operand->exp.X_add_number : (sbit ? sbit->value : -1);
int reg = 0;
if (insn->opcount == 1)
{
if (!sbit)
{
as_bad (_("A status register or status bit name is required"));
return 0;
}
/* Guess the register based on the status bit; "ovb" is the last
status bit defined for st0. */
if (sbit > (symbol *) hash_find (sbit_hash, "ovb"))
reg = 1;
}
if (value == -1)
{
as_bad (_("Unrecognized status bit \"%s\""), operand->buf);
return 0;
}
insn->opcode[0].word |= value;
insn->opcode[0].word |= (reg << 9);
return 1;
}
case OP_N:
if (strcasecmp (operand->buf, "st0") == 0
|| strcasecmp (operand->buf, "st1") == 0)
{
insn->opcode[0].word |=
((unsigned short) (operand->buf[2] - '0')) << 9;
return 1;
}
else if (operand->exp.X_op == O_constant
&& (operand->exp.X_add_number == 0
|| operand->exp.X_add_number == 1))
{
insn->opcode[0].word |=
((unsigned short) (operand->exp.X_add_number)) << 9;
return 1;
}
as_bad (_("Invalid status register \"%s\""), operand->buf);
return 0;
case OP_k5:
return encode_integer (insn, operand, 0, -16, 15, 0x1F);
case OP_k3:
return encode_integer (insn, operand, 0, 0, 7, 0x7);
case OP_k9:
return encode_integer (insn, operand, 0, 0, 0x1FF, 0x1FF);
case OP_12:
if (operand->exp.X_add_number != 1
&& operand->exp.X_add_number != 2)
{
as_bad (_("Operand \"%s\" out of range (use 1 or 2)"), operand->buf);
return 0;
}
insn->opcode[0].word |= (operand->exp.X_add_number - 1) << 9;
return 1;
case OP_16:
case OP_T:
case OP_TS:
case OP_ASM:
case OP_TRN:
case OP_DP:
case OP_ARP:
/* No encoding necessary. */
return 1;
default:
return 0;
}
return 1;
}
static void
emit_insn (tic54x_insn *insn)
{
int i;
flagword oldflags = bfd_get_section_flags (stdoutput, now_seg);
flagword flags = oldflags | SEC_CODE;
if (! bfd_set_section_flags (stdoutput, now_seg, flags))
as_warn (_("error setting flags for \"%s\": %s"),
bfd_section_name (stdoutput, now_seg),
bfd_errmsg (bfd_get_error ()));
for (i = 0; i < insn->words; i++)
{
int size = (insn->opcode[i].unresolved
&& insn->opcode[i].r_type == BFD_RELOC_TIC54X_23) ? 4 : 2;
char *p = frag_more (size);
if (size == 2)
md_number_to_chars (p, (valueT) insn->opcode[i].word, 2);
else
md_number_to_chars (p, (valueT) insn->opcode[i].word << 16, 4);
if (insn->opcode[i].unresolved)
fix_new_exp (frag_now, p - frag_now->fr_literal,
insn->opcode[i].r_nchars, &insn->opcode[i].addr_expr,
FALSE, insn->opcode[i].r_type);
}
}
/* Convert the operand strings into appropriate opcode values
return the total number of words used by the instruction. */
static int
build_insn (tic54x_insn *insn)
{
int i;
/* Only non-parallel instructions support lk addressing. */
if (!(insn->tm->flags & FL_PAR))
{
for (i = 0; i < insn->opcount; i++)
{
if ((OPTYPE (insn->operands[i].type) == OP_Smem
|| OPTYPE (insn->operands[i].type) == OP_Lmem
|| OPTYPE (insn->operands[i].type) == OP_Sind)
&& strchr (insn->operands[i].buf, '(')
/* Don't mistake stack-relative addressing for lk addressing. */
&& strncasecmp (insn->operands[i].buf, "*sp (", 4) != 0)
{
insn->is_lkaddr = 1;
insn->lkoperand = i;
break;
}
}
}
insn->words = insn->tm->words + insn->is_lkaddr;
insn->opcode[0].word = insn->tm->opcode;
if (insn->tm->flags & FL_EXT)
insn->opcode[1 + insn->is_lkaddr].word = insn->tm->opcode2;
for (i = 0; i < insn->opcount; i++)
{
enum optype type = insn->operands[i].type;
if (!encode_operand (insn, type, &insn->operands[i]))
return 0;
}
if (insn->tm->flags & FL_PAR)
for (i = 0; i < insn->paropcount; i++)
{
enum optype partype = insn->paroperands[i].type;
if (!encode_operand (insn, partype, &insn->paroperands[i]))
return 0;
}
emit_insn (insn);
return insn->words;
}
static int
optimize_insn (tic54x_insn *insn)
{
/* Optimize some instructions, helping out the brain-dead programmer. */
#define is_zero(op) ((op).exp.X_op == O_constant && (op).exp.X_add_number == 0)
if (strcasecmp (insn->tm->name, "add") == 0)
{
if (insn->opcount > 1
&& is_accumulator (&insn->operands[insn->opcount - 2])
&& is_accumulator (&insn->operands[insn->opcount - 1])
&& strcasecmp (insn->operands[insn->opcount - 2].buf,
insn->operands[insn->opcount - 1].buf) == 0)
{
--insn->opcount;
insn->using_default_dst = 1;
return 1;
}
/* Try to collapse if Xmem and shift count is zero. */
if ((OPTYPE (insn->tm->operand_types[0]) == OP_Xmem
&& OPTYPE (insn->tm->operand_types[1]) == OP_SHFT
&& is_zero (insn->operands[1]))
/* Or if Smem, shift is zero or absent, and SRC == DST. */
|| (OPTYPE (insn->tm->operand_types[0]) == OP_Smem
&& OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT
&& is_type (&insn->operands[1], OP_SHIFT)
&& is_zero (insn->operands[1]) && insn->opcount == 3))
{
insn->operands[1] = insn->operands[2];
insn->opcount = 2;
return 1;
}
}
else if (strcasecmp (insn->tm->name, "ld") == 0)
{
if (insn->opcount == 3 && insn->operands[0].type != OP_SRC)
{
if ((OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT
|| OPTYPE (insn->tm->operand_types[1]) == OP_SHFT)
&& is_zero (insn->operands[1])
&& (OPTYPE (insn->tm->operand_types[0]) != OP_lk
|| (insn->operands[0].exp.X_op == O_constant
&& insn->operands[0].exp.X_add_number <= 255
&& insn->operands[0].exp.X_add_number >= 0)))
{
insn->operands[1] = insn->operands[2];
insn->opcount = 2;
return 1;
}
}
}
else if (strcasecmp (insn->tm->name, "sth") == 0
|| strcasecmp (insn->tm->name, "stl") == 0)
{
if ((OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT
|| OPTYPE (insn->tm->operand_types[1]) == OP_SHFT)
&& is_zero (insn->operands[1]))
{
insn->operands[1] = insn->operands[2];
insn->opcount = 2;
return 1;
}
}
else if (strcasecmp (insn->tm->name, "sub") == 0)
{
if (insn->opcount > 1
&& is_accumulator (&insn->operands[insn->opcount - 2])
&& is_accumulator (&insn->operands[insn->opcount - 1])
&& strcasecmp (insn->operands[insn->opcount - 2].buf,
insn->operands[insn->opcount - 1].buf) == 0)
{
--insn->opcount;
insn->using_default_dst = 1;
return 1;
}
if ( ((OPTYPE (insn->tm->operand_types[0]) == OP_Smem
&& OPTYPE (insn->tm->operand_types[1]) == OP_SHIFT)
|| (OPTYPE (insn->tm->operand_types[0]) == OP_Xmem
&& OPTYPE (insn->tm->operand_types[1]) == OP_SHFT))
&& is_zero (insn->operands[1])
&& insn->opcount == 3)
{
insn->operands[1] = insn->operands[2];
insn->opcount = 2;
return 1;
}
}
return 0;
}
/* Find a matching template if possible, and get the operand strings. */
static int
tic54x_parse_insn (tic54x_insn *insn, char *line)
{
insn->tm = (insn_template *) hash_find (op_hash, insn->mnemonic);
if (!insn->tm)
{
as_bad (_("Unrecognized instruction \"%s\""), insn->mnemonic);
return 0;
}
insn->opcount = get_operands (insn->operands, line);
if (insn->opcount < 0)
return 0;
/* Check each variation of operands for this mnemonic. */
while (insn->tm->name && strcasecmp (insn->tm->name, insn->mnemonic) == 0)
{
if (insn->opcount >= insn->tm->minops
&& insn->opcount <= insn->tm->maxops
&& operands_match (insn, &insn->operands[0], insn->opcount,
insn->tm->operand_types,
insn->tm->minops, insn->tm->maxops))
{
/* SUCCESS! now try some optimizations. */
if (optimize_insn (insn))
{
insn->tm = (insn_template *) hash_find (op_hash,
insn->mnemonic);
continue;
}
return 1;
}
++(insn->tm);
}
as_bad (_("Unrecognized operand list '%s' for instruction '%s'"),
line, insn->mnemonic);
return 0;
}
/* We set this in start_line_hook, 'cause if we do a line replacement, we
won't be able to see the next line. */
static int parallel_on_next_line_hint = 0;
/* See if this is part of a parallel instruction
Look for a subsequent line starting with "||". */
static int
next_line_shows_parallel (char *next_line)
{
/* Look for the second half. */
while (ISSPACE (*next_line))
++next_line;
return (next_line[0] == PARALLEL_SEPARATOR
&& next_line[1] == PARALLEL_SEPARATOR);
}
static int
tic54x_parse_parallel_insn_firstline (tic54x_insn *insn, char *line)
{
insn->tm = (insn_template *) hash_find (parop_hash, insn->mnemonic);
if (!insn->tm)
{
as_bad (_("Unrecognized parallel instruction \"%s\""),
insn->mnemonic);
return 0;
}
while (insn->tm->name && strcasecmp (insn->tm->name,
insn->mnemonic) == 0)
{
insn->opcount = get_operands (insn->operands, line);
if (insn->opcount < 0)
return 0;
if (insn->opcount == 2
&& operands_match (insn, &insn->operands[0], insn->opcount,
insn->tm->operand_types, 2, 2))
{
return 1;
}
++(insn->tm);
}
/* Didn't find a matching parallel; try for a normal insn. */
return 0;
}
/* Parse the second line of a two-line parallel instruction. */
static int
tic54x_parse_parallel_insn_lastline (tic54x_insn *insn, char *line)
{
int valid_mnemonic = 0;
insn->paropcount = get_operands (insn->paroperands, line);
while (insn->tm->name && strcasecmp (insn->tm->name,
insn->mnemonic) == 0)
{
if (strcasecmp (insn->tm->parname, insn->parmnemonic) == 0)
{
valid_mnemonic = 1;
if (insn->paropcount >= insn->tm->minops
&& insn->paropcount <= insn->tm->maxops
&& operands_match (insn, insn->paroperands,
insn->paropcount,
insn->tm->paroperand_types,
insn->tm->minops, insn->tm->maxops))
return 1;
}
++(insn->tm);
}
if (valid_mnemonic)
as_bad (_("Invalid operand (s) for parallel instruction \"%s\""),
insn->parmnemonic);
else
as_bad (_("Unrecognized parallel instruction combination \"%s || %s\""),
insn->mnemonic, insn->parmnemonic);
return 0;
}
/* If quotes found, return copy of line up to closing quote;
otherwise up until terminator.
If it's a string, pass as-is; otherwise attempt substitution symbol
replacement on the value. */
static char *
subsym_get_arg (char *line, char *terminators, char **str, int nosub)
{
char *ptr = line;
char *endp;
int is_string = *line == '"';
int is_char = ISDIGIT (*line);
if (is_char)
{
while (ISDIGIT (*ptr))
++ptr;
endp = ptr;
*str = xmalloc (ptr - line + 1);
strncpy (*str, line, ptr - line);
(*str)[ptr - line] = 0;
}
else if (is_string)
{
char *savedp = input_line_pointer;
int len;
input_line_pointer = ptr;
*str = demand_copy_C_string (&len);
endp = input_line_pointer;
input_line_pointer = savedp;
/* Do forced substitutions if requested. */
if (!nosub && **str == ':')
*str = subsym_substitute (*str, 1);
}
else
{
char *term = terminators;
char *value = NULL;
while (*ptr && *ptr != *term)
{
if (!*term)
{
term = terminators;
++ptr;
}
else
++term;
}
endp = ptr;
*str = xmalloc (ptr - line + 1);
strncpy (*str, line, ptr - line);
(*str)[ptr - line] = 0;
/* Do simple substitution, if available. */
if (!nosub && (value = subsym_lookup (*str, macro_level)) != NULL)
*str = value;
}
return endp;
}
/* Replace the given substitution string.
We start at the innermost macro level, so that existing locals remain local
Note: we're treating macro args identically to .var's; I don't know if
that's compatible w/TI's assembler. */
static void
subsym_create_or_replace (char *name, char *value)
{
int i;
for (i = macro_level; i > 0; i--)
{
if (hash_find (subsym_hash[i], name))
{
hash_replace (subsym_hash[i], name, value);
return;
}
}
if (hash_find (subsym_hash[0], name))
hash_replace (subsym_hash[0], name, value);
else
hash_insert (subsym_hash[0], name, value);
}
/* Look up the substitution string replacement for the given symbol.
Start with the innermost macro substitution table given and work
outwards. */
static char *
subsym_lookup (char *name, int nest_level)
{
char *value = hash_find (subsym_hash[nest_level], name);
if (value || nest_level == 0)
return value;
return subsym_lookup (name, nest_level - 1);
}
/* Do substitution-symbol replacement on the given line (recursively).
return the argument if no substitution was done
Also look for built-in functions ($func (arg)) and local labels.
If FORCED is set, look for forced substitutions of the form ':SYMBOL:'. */
static char *
subsym_substitute (char *line, int forced)
{
/* For each apparent symbol, see if it's a substitution symbol, and if so,
replace it in the input. */
char *replacement; /* current replacement for LINE. */
char *head; /* Start of line. */
char *ptr; /* Current examination point. */
int changed = 0; /* Did we make a substitution? */
int eval_line = 0; /* Is this line a .eval/.asg statement? */
int eval_symbol = 0; /* Are we in the middle of the symbol for
.eval/.asg? */
char *eval_end = NULL;
int recurse = 1;
int line_conditional = 0;
char *tmp;
/* Work with a copy of the input line. */
replacement = xmalloc (strlen (line) + 1);
strcpy (replacement, line);
ptr = head = replacement;
/* Flag lines where we might need to replace a single '=' with two;
GAS uses single '=' to assign macro args values, and possibly other
places, so limit what we replace. */
if (strstr (line, ".if")
|| strstr (line, ".elseif")
|| strstr (line, ".break"))
line_conditional = 1;
/* Watch out for .eval, so that we avoid doing substitution on the
symbol being assigned a value. */
if (strstr (line, ".eval") || strstr (line, ".asg"))
eval_line = 1;
/* If it's a macro definition, don't do substitution on the argument
names. */
if (strstr (line, ".macro"))
return line;
while (!is_end_of_line[(int) *ptr])
{
int current_char = *ptr;
/* Need to update this since LINE may have been modified. */
if (eval_line)
eval_end = strrchr (ptr, ',');
/* Replace triple double quotes with bounding quote/escapes. */
if (current_char == '"' && ptr[1] == '"' && ptr[2] == '"')
{
ptr[1] = '\\';
tmp = strstr (ptr + 2, "\"\"\"");
if (tmp)
tmp[0] = '\\';
changed = 1;
}
/* Replace a single '=' with a '==';
for compatibility with older code only. */
if (line_conditional && current_char == '=')
{
if (ptr[1] == '=')
{
ptr += 2;
continue;
}
*ptr++ = '\0';
tmp = xmalloc (strlen (head) + 2 + strlen (ptr) + 1);
sprintf (tmp, "%s==%s", head, ptr);
/* Continue examining after the '=='. */
ptr = tmp + strlen (head) + 2;
free (replacement);
head = replacement = tmp;
changed = 1;
}
/* Flag when we've reached the symbol part of .eval/.asg. */
if (eval_line && ptr >= eval_end)
eval_symbol = 1;
/* For each apparent symbol, see if it's a substitution symbol, and if
so, replace it in the input. */
if ((forced && current_char == ':')
|| (!forced && is_name_beginner (current_char)))
{
char *name; /* Symbol to be replaced. */
char *savedp = input_line_pointer;
int c;
char *value = NULL;
char *tail; /* Rest of line after symbol. */
/* Skip the colon. */
if (forced)
++ptr;
input_line_pointer = ptr;
c = get_symbol_name (&name);
/* '?' is not normally part of a symbol, but it IS part of a local
label. */
if (c == '?')
{
*input_line_pointer++ = c;
c = *input_line_pointer;
*input_line_pointer = '\0';
}
/* Avoid infinite recursion; if a symbol shows up a second time for
substitution, leave it as is. */
if (hash_find (subsym_recurse_hash, name) == NULL)
value = subsym_lookup (name, macro_level);
else
as_warn (_("%s symbol recursion stopped at "
"second appearance of '%s'"),
forced ? "Forced substitution" : "Substitution", name);
ptr = tail = input_line_pointer;
input_line_pointer = savedp;
/* Check for local labels; replace them with the appropriate
substitution. */
if ((*name == '$' && ISDIGIT (name[1]) && name[2] == '\0')
|| name[strlen (name) - 1] == '?')
{
/* Use an existing identifier for that label if, available, or
create a new, unique identifier. */
value = hash_find (local_label_hash[macro_level], name);
if (value == NULL)
{
char digit[11];
char *namecopy = strcpy (xmalloc (strlen (name) + 1), name);
value = strcpy (xmalloc (strlen (name) + sizeof (digit) + 1),
name);
if (*value != '$')
value[strlen (value) - 1] = '\0';
sprintf (digit, ".%d", local_label_id++);
strcat (value, digit);
hash_insert (local_label_hash[macro_level], namecopy, value);
}
/* Indicate where to continue looking for substitutions. */
ptr = tail;
}
/* Check for built-in subsym and math functions. */
else if (value != NULL && *name == '$')
{
subsym_proc_entry *entry = (subsym_proc_entry *) value;
math_proc_entry *math_entry = hash_find (math_hash, name);
char *arg1, *arg2 = NULL;
*ptr = c;
if (entry == NULL)
{
as_bad (_("Unrecognized substitution symbol function"));
break;
}
else if (*ptr != '(')
{
as_bad (_("Missing '(' after substitution symbol function"));
break;
}
++ptr;
if (math_entry != NULL)
{
float farg1, farg2 = 0;
volatile float fresult;
farg1 = (float) strtod (ptr, &ptr);
if (math_entry->nargs == 2)
{
if (*ptr++ != ',')
{
as_bad (_("Expecting second argument"));
break;
}
farg2 = (float) strtod (ptr, &ptr);
}
fresult = (*math_entry->proc) (farg1, farg2);
value = xmalloc (128);
if (math_entry->int_return)
sprintf (value, "%d", (int) fresult);
else
sprintf (value, "%f", fresult);
if (*ptr++ != ')')
{
as_bad (_("Extra junk in function call, expecting ')'"));
break;
}
/* Don't bother recursing; the replacement isn't a
symbol. */
recurse = 0;
}
else
{
int val;
int arg_type[2] = { *ptr == '"' , 0 };
int ismember = !strcmp (entry->name, "$ismember");
/* Parse one or two args, which must be a substitution
symbol, string or a character-string constant. */
/* For all functions, a string or substitution symbol may be
used, with the following exceptions:
firstch/lastch: 2nd arg must be character constant
ismember: both args must be substitution symbols. */
ptr = subsym_get_arg (ptr, ",)", &arg1, ismember);
if (!arg1)
break;
if (entry->nargs == 2)
{
if (*ptr++ != ',')
{
as_bad (_("Function expects two arguments"));
break;
}
/* Character constants are converted to numerics
by the preprocessor. */
arg_type[1] = (ISDIGIT (*ptr)) ? 2 : (*ptr == '"');
ptr = subsym_get_arg (ptr, ")", &arg2, ismember);
}
/* Args checking. */
if ((!strcmp (entry->name, "$firstch")
|| !strcmp (entry->name, "$lastch"))
&& arg_type[1] != 2)
{
as_bad (_("Expecting character constant argument"));
break;
}
if (ismember
&& (arg_type[0] != 0 || arg_type[1] != 0))
{
as_bad (_("Both arguments must be substitution symbols"));
break;
}
if (*ptr++ != ')')
{
as_bad (_("Extra junk in function call, expecting ')'"));
break;
}
val = (*entry->proc) (arg1, arg2);
value = xmalloc (64);
sprintf (value, "%d", val);
}
/* Fix things up to replace the entire expression, not just the
function name. */
tail = ptr;
c = *tail;
}
if (value != NULL && !eval_symbol)
{
/* Replace the symbol with its string replacement and
continue. Recursively replace VALUE until either no
substitutions are performed, or a substitution that has been
previously made is encountered again.
put the symbol into the recursion hash table so we only
try to replace a symbol once. */
if (recurse)
{
hash_insert (subsym_recurse_hash, name, name);
value = subsym_substitute (value, macro_level > 0);
hash_delete (subsym_recurse_hash, name, FALSE);
}
/* Temporarily zero-terminate where the symbol started. */
*name = 0;
if (forced)
{
if (c == '(')
{
/* Subscripted substitution symbol -- use just the
indicated portion of the string; the description
kinda indicates that forced substitution is not
supposed to be recursive, but I'm not sure. */
unsigned beg, len = 1; /* default to a single char */
char *newval = strcpy (xmalloc (strlen (value) + 1),
value);
savedp = input_line_pointer;
input_line_pointer = tail + 1;
beg = get_absolute_expression ();
if (beg < 1)
{
as_bad (_("Invalid subscript (use 1 to %d)"),
(int) strlen (value));
break;
}
if (*input_line_pointer == ',')
{
++input_line_pointer;
len = get_absolute_expression ();
if (beg + len > strlen (value))
{
as_bad (_("Invalid length (use 0 to %d"),
(int) strlen (value) - beg);
break;
}
}
newval += beg - 1;
newval[len] = 0;
tail = input_line_pointer;
if (*tail++ != ')')
{
as_bad (_("Missing ')' in subscripted substitution "
"symbol expression"));
break;
}
c = *tail;
input_line_pointer = savedp;
value = newval;
}
name[-1] = 0;
}
tmp = xmalloc (strlen (head) + strlen (value) +
strlen (tail + 1) + 2);
strcpy (tmp, head);
strcat (tmp, value);
/* Make sure forced substitutions are properly terminated. */
if (forced)
{
if (c != ':')
{
as_bad (_("Missing forced substitution terminator ':'"));
break;
}
++tail;
}
else
/* Restore the character after the symbol end. */
*tail = c;
strcat (tmp, tail);
/* Continue examining after the replacement value. */
ptr = tmp + strlen (head) + strlen (value);
free (replacement);
head = replacement = tmp;
changed = 1;
}
else
*ptr = c;
}
else
{
++ptr;
}
}
if (changed)
return replacement;
else
return line;
}
/* We use this to handle substitution symbols
hijack input_line_pointer, replacing it with our substituted string.
.sslist should enable listing the line after replacements are made...
returns the new buffer limit. */
void
tic54x_start_line_hook (void)
{
char *line, *endp;
char *replacement = NULL;
/* Work with a copy of the input line, including EOL char. */
endp = input_line_pointer;
while (!is_end_of_line[(int) *endp++])
;
line = xmalloc (endp - input_line_pointer + 1);
strncpy (line, input_line_pointer, endp - input_line_pointer + 1);
line[endp - input_line_pointer] = 0;
/* Scan ahead for parallel insns. */
parallel_on_next_line_hint = next_line_shows_parallel (endp);
/* If within a macro, first process forced replacements. */
if (macro_level > 0)
replacement = subsym_substitute (line, 1);
else
replacement = line;
replacement = subsym_substitute (replacement, 0);
if (replacement != line)
{
char *tmp = replacement;
char *comment = strchr (replacement, ';');
char endc = replacement[strlen (replacement) - 1];
/* Clean up the replacement; we'd prefer to have this done by the
standard preprocessing equipment (maybe do_scrub_chars?)
but for now, do a quick-and-dirty. */
if (comment != NULL)
{
comment[0] = endc;
comment[1] = 0;
--comment;
}
else
comment = replacement + strlen (replacement) - 1;
/* Trim trailing whitespace. */
while (ISSPACE (*comment))
{
comment[0] = endc;
comment[1] = 0;
--comment;
}
/* Compact leading whitespace. */
while (ISSPACE (tmp[0]) && ISSPACE (tmp[1]))
++tmp;
input_line_pointer = endp;
input_scrub_insert_line (tmp);
free (replacement);
free (line);
/* Keep track of whether we've done a substitution. */
substitution_line = 1;
}
else
{
/* No change. */
free (line);
substitution_line = 0;
}
}
/* This is the guts of the machine-dependent assembler. STR points to a
machine dependent instruction. This function is supposed to emit
the frags/bytes it assembles to. */
void
md_assemble (char *line)
{
static int repeat_slot = 0;
static int delay_slots = 0; /* How many delay slots left to fill? */
static int is_parallel = 0;
static tic54x_insn insn;
char *lptr;
char *savedp = input_line_pointer;
int c;
input_line_pointer = line;
c = get_symbol_name (&line);
if (cpu == VNONE)
cpu = V542;
if (address_mode_needs_set)
{
set_address_mode (amode);
address_mode_needs_set = 0;
}
if (cpu_needs_set)
{
set_cpu (cpu);
cpu_needs_set = 0;
}
assembly_begun = 1;
if (is_parallel)
{
is_parallel = 0;
strcpy (insn.parmnemonic, line);
lptr = input_line_pointer;
*lptr = c;
input_line_pointer = savedp;
if (tic54x_parse_parallel_insn_lastline (&insn, lptr))
{
int words = build_insn (&insn);
if (delay_slots != 0)
{
if (words > delay_slots)
{
as_bad (_("Instruction does not fit in available delay "
"slots (%d-word insn, %d slots left)"),
words, delay_slots);
delay_slots = 0;
return;
}
delay_slots -= words;
}
}
return;
}
memset (&insn, 0, sizeof (insn));
strcpy (insn.mnemonic, line);
lptr = input_line_pointer;
*lptr = c;
input_line_pointer = savedp;
/* See if this line is part of a parallel instruction; if so, either this
line or the next line will have the "||" specifier preceding the
mnemonic, and we look for it in the parallel insn hash table. */
if (strstr (line, "||") != NULL || parallel_on_next_line_hint)
{
char *tmp = strstr (line, "||");
if (tmp != NULL)
*tmp = '\0';
if (tic54x_parse_parallel_insn_firstline (&insn, lptr))
{
is_parallel = 1;
/* If the parallel part is on the same line, process it now,
otherwise let the assembler pick up the next line for us. */
if (tmp != NULL)
{
while (ISSPACE (tmp[2]))
++tmp;
md_assemble (tmp + 2);
}
}
else
{
as_bad (_("Unrecognized parallel instruction '%s'"), line);
}
return;
}
if (tic54x_parse_insn (&insn, lptr))
{
int words;
if ((insn.tm->flags & FL_LP)
&& cpu != V545LP && cpu != V546LP)
{
as_bad (_("Instruction '%s' requires an LP cpu version"),
insn.tm->name);
return;
}
if ((insn.tm->flags & FL_FAR)
&& amode != far_mode)
{
as_bad (_("Instruction '%s' requires far mode addressing"),
insn.tm->name);
return;
}
words = build_insn (&insn);
/* Is this instruction in a delay slot? */
if (delay_slots)
{
if (words > delay_slots)
{
as_warn (_("Instruction does not fit in available delay "
"slots (%d-word insn, %d slots left). "
"Resulting behavior is undefined."),
words, delay_slots);
delay_slots = 0;
return;
}
/* Branches in delay slots are not allowed. */
if (insn.tm->flags & FL_BMASK)
{
as_warn (_("Instructions which cause PC discontinuity are not "
"allowed in a delay slot. "
"Resulting behavior is undefined."));
}
delay_slots -= words;
}
/* Is this instruction the target of a repeat? */
if (repeat_slot)
{
if (insn.tm->flags & FL_NR)
as_warn (_("'%s' is not repeatable. "
"Resulting behavior is undefined."),
insn.tm->name);
else if (insn.is_lkaddr)
as_warn (_("Instructions using long offset modifiers or absolute "
"addresses are not repeatable. "
"Resulting behavior is undefined."));
repeat_slot = 0;
}
/* Make sure we check the target of a repeat instruction. */
if (insn.tm->flags & B_REPEAT)
{
repeat_slot = 1;
/* FIXME -- warn if repeat_slot == 1 at EOF. */
}
/* Make sure we check our delay slots for validity. */
if (insn.tm->flags & FL_DELAY)
{
delay_slots = 2;
/* FIXME -- warn if delay_slots != 0 at EOF. */
}
}
}
/* Do a final adjustment on the symbol table; in this case, make sure we have
a ".file" symbol. */
void
tic54x_adjust_symtab (void)
{
if (symbol_rootP == NULL
|| S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE)
{
char *filename;
unsigned lineno;
as_where (&filename, &lineno);
c_dot_file_symbol (filename, 0);
}
}
/* In order to get gas to ignore any | chars at the start of a line,
this function returns true if a | is found in a line.
This lets us process parallel instructions, which span two lines. */
int
tic54x_unrecognized_line (int c)
{
return c == PARALLEL_SEPARATOR;
}
/* Watch for local labels of the form $[0-9] and [_a-zA-Z][_a-zA-Z0-9]*?
Encode their names so that only we see them and can map them to the
appropriate places.
FIXME -- obviously this isn't done yet. These locals still show up in the
symbol table. */
void
tic54x_define_label (symbolS *sym)
{
/* Just in case we need this later; note that this is not necessarily the
same thing as line_label...
When aligning or assigning labels to fields, sometimes the label is
assigned other than the address at which the label appears.
FIXME -- is this really needed? I think all the proper label assignment
is done in tic54x_cons. */
last_label_seen = sym;
}
/* Try to parse something that normal parsing failed at. */
symbolS *
tic54x_undefined_symbol (char *name)
{
symbol *sym;
/* Not sure how to handle predefined symbols. */
if ((sym = (symbol *) hash_find (cc_hash, name)) != NULL ||
(sym = (symbol *) hash_find (cc2_hash, name)) != NULL ||
(sym = (symbol *) hash_find (cc3_hash, name)) != NULL ||
(sym = (symbol *) hash_find (misc_symbol_hash, name)) != NULL ||
(sym = (symbol *) hash_find (sbit_hash, name)) != NULL)
{
return symbol_new (name, reg_section,
(valueT) sym->value,
&zero_address_frag);
}
if ((sym = (symbol *) hash_find (reg_hash, name)) != NULL ||
(sym = (symbol *) hash_find (mmreg_hash, name)) != NULL ||
!strcasecmp (name, "a") || !strcasecmp (name, "b"))
{
return symbol_new (name, reg_section,
(valueT) sym ? sym->value : 0,
&zero_address_frag);
}
return NULL;
}
/* Parse a name in an expression before the expression parser takes a stab at
it. */
int
tic54x_parse_name (char *name ATTRIBUTE_UNUSED,
expressionS *expn ATTRIBUTE_UNUSED)
{
return 0;
}
char *
md_atof (int type, char *literalP, int *sizeP)
{
/* Target data is little-endian, but floats are stored
big-"word"ian. ugh. */
return ieee_md_atof (type, literalP, sizeP, TRUE);
}
arelent *
tc_gen_reloc (asection *section, fixS *fixP)
{
arelent *rel;
bfd_reloc_code_real_type code = fixP->fx_r_type;
asymbol *sym = symbol_get_bfdsym (fixP->fx_addsy);
rel = (arelent *) xmalloc (sizeof (arelent));
rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
*rel->sym_ptr_ptr = sym;
/* We assume that all rel->address are host byte offsets. */
rel->address = fixP->fx_frag->fr_address + fixP->fx_where;
rel->address /= OCTETS_PER_BYTE;
rel->howto = bfd_reloc_type_lookup (stdoutput, code);
if (!strcmp (sym->name, section->name))
rel->howto += HOWTO_BANK;
if (!rel->howto)
{
const char *name = S_GET_NAME (fixP->fx_addsy);
if (name == NULL)
name = "<unknown>";
as_fatal ("Cannot generate relocation type for symbol %s, code %s",
name, bfd_get_reloc_code_name (code));
return NULL;
}
return rel;
}
/* Handle cons expressions. */
void
tic54x_cons_fix_new (fragS *frag, int where, int octets, expressionS *expn,
bfd_reloc_code_real_type r)
{
switch (octets)
{
default:
as_bad (_("Unsupported relocation size %d"), octets);
r = BFD_RELOC_TIC54X_16_OF_23;
break;
case 2:
r = BFD_RELOC_TIC54X_16_OF_23;
break;
case 4:
/* TI assembler always uses this, regardless of addressing mode. */
if (emitting_long)
r = BFD_RELOC_TIC54X_23;
else
/* We never want to directly generate this; this is provided for
stabs support only. */
r = BFD_RELOC_32;
break;
}
fix_new_exp (frag, where, octets, expn, 0, r);
}
/* Attempt to simplify or even eliminate a fixup.
To indicate that a fixup has been eliminated, set fixP->fx_done.
If fixp->fx_addsy is non-NULL, we'll have to generate a reloc entry. */
void
md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
{
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
valueT val = * valP;
switch (fixP->fx_r_type)
{
default:
as_fatal ("Bad relocation type: 0x%02x", fixP->fx_r_type);
return;
case BFD_RELOC_TIC54X_MS7_OF_23:
val = (val >> 16) & 0x7F;
/* Fall through. */
case BFD_RELOC_TIC54X_16_OF_23:
case BFD_RELOC_16:
bfd_put_16 (stdoutput, val, buf);
/* Indicate what we're actually writing, so that we don't get warnings
about exceeding available space. */
*valP = val & 0xFFFF;
break;
case BFD_RELOC_TIC54X_PARTLS7:
bfd_put_16 (stdoutput,
(bfd_get_16 (stdoutput, buf) & 0xFF80) | (val & 0x7F),
buf);
/* Indicate what we're actually writing, so that we don't get warnings
about exceeding available space. */
*valP = val & 0x7F;
break;
case BFD_RELOC_TIC54X_PARTMS9:
/* TI assembler doesn't shift its encoding for relocatable files, and is
thus incompatible with this implementation's relocatable files. */
bfd_put_16 (stdoutput,
(bfd_get_16 (stdoutput, buf) & 0xFE00) | (val >> 7),
buf);
break;
case BFD_RELOC_32:
case BFD_RELOC_TIC54X_23:
bfd_put_32 (stdoutput,
(bfd_get_32 (stdoutput, buf) & 0xFF800000) | val,
buf);
break;
}
if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
fixP->fx_done = 1;
}
/* This is our chance to record section alignment
don't need to do anything here, since BFD does the proper encoding. */
valueT
md_section_align (segT segment ATTRIBUTE_UNUSED, valueT section_size)
{
return section_size;
}
long
md_pcrel_from (fixS *fixP ATTRIBUTE_UNUSED)
{
return 0;
}
/* Mostly little-endian, but longwords (4 octets) get MS word stored
first. */
void
tic54x_number_to_chars (char *buf, valueT val, int n)
{
if (n != 4)
number_to_chars_littleendian (buf, val, n);
else
{
number_to_chars_littleendian (buf , val >> 16 , 2);
number_to_chars_littleendian (buf + 2, val & 0xFFFF, 2);
}
}
int
tic54x_estimate_size_before_relax (fragS *frag ATTRIBUTE_UNUSED,
segT seg ATTRIBUTE_UNUSED)
{
return 0;
}
/* We use this to handle bit allocations which we couldn't handle before due
to symbols being in different frags. return number of octets added. */
int
tic54x_relax_frag (fragS *frag, long stretch ATTRIBUTE_UNUSED)
{
symbolS *sym = frag->fr_symbol;
int growth = 0;
int i;
if (sym != NULL)
{
struct bit_info *bi = (struct bit_info *) frag->fr_opcode;
int bit_offset = frag_bit_offset (frag_prev (frag, bi->seg), bi->seg);
int size = S_GET_VALUE (sym);
fragS *prev_frag = bit_offset_frag (frag_prev (frag, bi->seg), bi->seg);
int available = 16 - bit_offset;
if (symbol_get_frag (sym) != &zero_address_frag
|| S_IS_COMMON (sym)
|| !S_IS_DEFINED (sym))
as_bad_where (frag->fr_file, frag->fr_line,
_("non-absolute value used with .space/.bes"));
if (size < 0)
{
as_warn (_("negative value ignored in %s"),
bi->type == TYPE_SPACE ? ".space" :
bi->type == TYPE_BES ? ".bes" : ".field");
growth = 0;
frag->tc_frag_data = frag->fr_fix = 0;
return 0;
}
if (bi->type == TYPE_FIELD)
{
/* Bit fields of 16 or larger will have already been handled. */
if (bit_offset != 0 && available >= size)
{
char *p = prev_frag->fr_literal;
valueT value = bi->value;
value <<= available - size;
value |= ((unsigned short) p[1] << 8) | p[0];
md_number_to_chars (p, value, 2);
if ((prev_frag->tc_frag_data += size) == 16)
prev_frag->tc_frag_data = 0;
if (bi->sym)
symbol_set_frag (bi->sym, prev_frag);
/* This frag is no longer used. */
growth = -frag->fr_fix;
frag->fr_fix = 0;
frag->tc_frag_data = 0;
}
else
{
char *p = frag->fr_literal;
valueT value = bi->value << (16 - size);
md_number_to_chars (p, value, 2);
if ((frag->tc_frag_data = size) == 16)
frag->tc_frag_data = 0;
growth = 0;
}
}
else
{
if (bit_offset != 0 && bit_offset < 16)
{
if (available >= size)
{
if ((prev_frag->tc_frag_data += size) == 16)
prev_frag->tc_frag_data = 0;
if (bi->sym)
symbol_set_frag (bi->sym, prev_frag);
/* This frag is no longer used. */
growth = -frag->fr_fix;
frag->fr_fix = 0;
frag->tc_frag_data = 0;
goto getout;
}
if (bi->type == TYPE_SPACE && bi->sym)
symbol_set_frag (bi->sym, prev_frag);
size -= available;
}
growth = (size + 15) / 16 * OCTETS_PER_BYTE - frag->fr_fix;
for (i = 0; i < growth; i++)
frag->fr_literal[i] = 0;
frag->fr_fix = growth;
frag->tc_frag_data = size % 16;
/* Make sure any BES label points to the LAST word allocated. */
if (bi->type == TYPE_BES && bi->sym)
S_SET_VALUE (bi->sym, frag->fr_fix / OCTETS_PER_BYTE - 1);
}
getout:
frag->fr_symbol = 0;
frag->fr_opcode = 0;
free ((void *) bi);
}
return growth;
}
void
tic54x_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
segT seg ATTRIBUTE_UNUSED,
fragS *frag)
{
/* Offset is in bytes. */
frag->fr_offset = (frag->fr_next->fr_address
- frag->fr_address
- frag->fr_fix) / frag->fr_var;
if (frag->fr_offset < 0)
{
as_bad_where (frag->fr_file, frag->fr_line,
_("attempt to .space/.bes backwards? (%ld)"),
(long) frag->fr_offset);
}
frag->fr_type = rs_space;
}
/* We need to avoid having labels defined for certain directives/pseudo-ops
since once the label is defined, it's in the symbol table for good. TI
syntax puts the symbol *before* the pseudo (which is kinda like MRI syntax,
I guess, except I've never seen a definition of MRI syntax).
Don't allow labels to start with '.' */
int
tic54x_start_label (int nul_char, int next_char)
{
char *rest;
/* If within .struct/.union, no auto line labels, please. */
if (current_stag != NULL)
return 0;
/* Disallow labels starting with "." */
if (next_char != ':')
{
char *label = input_line_pointer;
while (!is_end_of_line[(int) label[-1]])
--label;
if (*label == '.')
{
as_bad (_("Invalid label '%s'"), label);
return 0;
}
}
if (is_end_of_line[(int) next_char])
return 1;
rest = input_line_pointer;
if (nul_char == '"')
++rest;
while (ISSPACE (next_char))
next_char = *++rest;
if (next_char != '.')
return 1;
/* Don't let colon () define a label for any of these... */
return ((strncasecmp (rest, ".tag", 4) != 0 || !ISSPACE (rest[4]))
&& (strncasecmp (rest, ".struct", 7) != 0 || !ISSPACE (rest[7]))
&& (strncasecmp (rest, ".union", 6) != 0 || !ISSPACE (rest[6]))
&& (strncasecmp (rest, ".macro", 6) != 0 || !ISSPACE (rest[6]))
&& (strncasecmp (rest, ".set", 4) != 0 || !ISSPACE (rest[4]))
&& (strncasecmp (rest, ".equ", 4) != 0 || !ISSPACE (rest[4])));
}
|