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Comparing cvsroot/microscheme/scheme.c (file contents):
Revision 1.7 by root, Wed Nov 25 22:12:59 2015 UTC vs.
Revision 1.19 by root, Thu Nov 26 21:36:11 2015 UTC

… …
65#define S_T (&SCHEME_V->xT) //TODO: magic ptr value? 65#define S_T (&SCHEME_V->xT) //TODO: magic ptr value?
66#define S_F (&SCHEME_V->xF) //TODO: magic ptr value? 66#define S_F (&SCHEME_V->xF) //TODO: magic ptr value?
67#define S_SINK (&SCHEME_V->xsink) 67#define S_SINK (&SCHEME_V->xsink)
68#define S_EOF (&SCHEME_V->xEOF_OBJ) 68#define S_EOF (&SCHEME_V->xEOF_OBJ)
69 69
70/* should use libecb */
71#if __GNUC__ >= 4
72# define ecb_expect(expr,value) __builtin_expect ((expr),(value))
73# define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
74# define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
75#else
76# define ecb_expect_false(expr) !!(expr)
77# define ecb_expect_true(expr) !!(expr)
78#endif
79
70#if !USE_MULTIPLICITY 80#if !USE_MULTIPLICITY
71static scheme sc; 81static scheme sc;
72#endif 82#endif
73 83
74static void 84static void
… …
201#define T_SYNTAX 0x0010 211#define T_SYNTAX 0x0010
202#define T_IMMUTABLE 0x0020 212#define T_IMMUTABLE 0x0020
203#define T_ATOM 0x0040 /* only for gc */ 213#define T_ATOM 0x0040 /* only for gc */
204#define T_MARK 0x0080 /* only for gc */ 214#define T_MARK 0x0080 /* only for gc */
205 215
206static num num_add (num a, num b); 216enum num_op { NUM_ADD, NUM_SUB, NUM_MUL, NUM_INTDIV };
207static num num_mul (num a, num b); 217
208static num num_div (num a, num b); 218static num num_op (enum num_op op, num a, num b);
209static num num_intdiv (num a, num b); 219static num num_intdiv (num a, num b);
210static num num_sub (num a, num b);
211static num num_rem (num a, num b); 220static num num_rem (num a, num b);
212static num num_mod (num a, num b); 221static num num_mod (num a, num b);
213static int num_eq (num a, num b);
214static int num_gt (num a, num b);
215static int num_ge (num a, num b);
216static int num_lt (num a, num b);
217static int num_le (num a, num b);
218 222
219#if USE_MATH 223#if USE_MATH
220static double round_per_R5RS (double x); 224static double round_per_R5RS (double x);
221#endif 225#endif
222static int is_zero_rvalue (RVALUE x); 226static int is_zero_rvalue (RVALUE x);
… …
243 247
244#define strvalue(p) ((p)->object.string.svalue) 248#define strvalue(p) ((p)->object.string.svalue)
245#define strlength(p) ((p)->object.string.length) 249#define strlength(p) ((p)->object.string.length)
246 250
247INTERFACE int is_list (SCHEME_P_ pointer p); 251INTERFACE int is_list (SCHEME_P_ pointer p);
252
248INTERFACE INLINE int 253INTERFACE INLINE int
249is_vector (pointer p) 254is_vector (pointer p)
250{ 255{
251 return type (p) == T_VECTOR; 256 return type (p) == T_VECTOR;
252} 257}
… …
369{ 374{
370 return type (p) == T_PAIR; 375 return type (p) == T_PAIR;
371} 376}
372 377
373#define car(p) ((p)->object.cons.car + 0) 378#define car(p) ((p)->object.cons.car + 0)
374#define cdr(p) ((p)->object.cons.cdr) /* find_consecutive_cells uses &cdr */ 379#define cdr(p) ((p)->object.cons.cdr + 0)
375 380
376#define caar(p) car (car (p)) 381static pointer caar (pointer p) { return car (car (p)); }
377#define cadr(p) car (cdr (p)) 382static pointer cadr (pointer p) { return car (cdr (p)); }
378#define cdar(p) cdr (car (p)) 383static pointer cdar (pointer p) { return cdr (car (p)); }
379#define cddr(p) cdr (cdr (p)) 384static pointer cddr (pointer p) { return cdr (cdr (p)); }
380 385
381#define cadar(p) car (cdr (car (p))) 386static pointer cadar (pointer p) { return car (cdr (car (p))); }
382#define caddr(p) car (cdr (cdr (p))) 387static pointer caddr (pointer p) { return car (cdr (cdr (p))); }
383#define cdaar(p) cdr (car (car (p))) 388static pointer cdaar (pointer p) { return cdr (car (car (p))); }
384 389
385INTERFACE void 390INTERFACE void
386set_car (pointer p, pointer q) 391set_car (pointer p, pointer q)
387{ 392{
388 p->object.cons.car = q; 393 p->object.cons.car = q;
… …
621static int file_push (SCHEME_P_ const char *fname); 626static int file_push (SCHEME_P_ const char *fname);
622static void file_pop (SCHEME_P); 627static void file_pop (SCHEME_P);
623static int file_interactive (SCHEME_P); 628static int file_interactive (SCHEME_P);
624static INLINE int is_one_of (char *s, int c); 629static INLINE int is_one_of (char *s, int c);
625static int alloc_cellseg (SCHEME_P_ int n); 630static int alloc_cellseg (SCHEME_P_ int n);
626static long binary_decode (const char *s);
627static INLINE pointer get_cell (SCHEME_P_ pointer a, pointer b); 631static INLINE pointer get_cell (SCHEME_P_ pointer a, pointer b);
628static void finalize_cell (SCHEME_P_ pointer a); 632static void finalize_cell (SCHEME_P_ pointer a);
629static int count_consecutive_cells (pointer x, int needed); 633static int count_consecutive_cells (pointer x, int needed);
630static pointer find_slot_in_env (SCHEME_P_ pointer env, pointer sym, int all); 634static pointer find_slot_in_env (SCHEME_P_ pointer env, pointer sym, int all);
631static pointer mk_number (SCHEME_P_ const num n); 635static pointer mk_number (SCHEME_P_ const num n);
… …
665static pointer ss_get_cont (SCHEME_P); 669static pointer ss_get_cont (SCHEME_P);
666static void ss_set_cont (SCHEME_P_ pointer cont); 670static void ss_set_cont (SCHEME_P_ pointer cont);
667static void dump_stack_mark (SCHEME_P); 671static void dump_stack_mark (SCHEME_P);
668static pointer opexe_0 (SCHEME_P_ enum scheme_opcodes op); 672static pointer opexe_0 (SCHEME_P_ enum scheme_opcodes op);
669static pointer opexe_2 (SCHEME_P_ enum scheme_opcodes op); 673static pointer opexe_2 (SCHEME_P_ enum scheme_opcodes op);
674static pointer opexe_r (SCHEME_P_ enum scheme_opcodes op);
670static pointer opexe_3 (SCHEME_P_ enum scheme_opcodes op); 675static pointer opexe_3 (SCHEME_P_ enum scheme_opcodes op);
671static pointer opexe_4 (SCHEME_P_ enum scheme_opcodes op); 676static pointer opexe_4 (SCHEME_P_ enum scheme_opcodes op);
672static pointer opexe_5 (SCHEME_P_ enum scheme_opcodes op); 677static pointer opexe_5 (SCHEME_P_ enum scheme_opcodes op);
673static pointer opexe_6 (SCHEME_P_ enum scheme_opcodes op); 678static pointer opexe_6 (SCHEME_P_ enum scheme_opcodes op);
674static void Eval_Cycle (SCHEME_P_ enum scheme_opcodes op); 679static void Eval_Cycle (SCHEME_P_ enum scheme_opcodes op);
675static void assign_syntax (SCHEME_P_ const char *name); 680static void assign_syntax (SCHEME_P_ const char *name);
676static int syntaxnum (pointer p); 681static int syntaxnum (pointer p);
677static void assign_proc (SCHEME_P_ enum scheme_opcodes, const char *name); 682static void assign_proc (SCHEME_P_ enum scheme_opcodes, const char *name);
678 683
679static num 684static num
680num_add (num a, num b) 685num_op (enum num_op op, num a, num b)
681{ 686{
682 num ret; 687 num ret;
683 688
684 num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b)); 689 num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b));
685 690
686 if (num_is_fixnum (ret)) 691 if (num_is_fixnum (ret))
687 num_set_ivalue (ret, num_get_ivalue (a) + num_get_ivalue (b)); 692 {
693 IVALUE av = num_get_ivalue (a);
694 IVALUE bv = num_get_ivalue (b);
695
696 switch (op)
697 {
698 case NUM_ADD: av += bv; break;
699 case NUM_SUB: av -= bv; break;
700 case NUM_MUL: av *= bv; break;
701 case NUM_INTDIV: av /= bv; break;
702 }
703
704 num_set_ivalue (ret, av);
705 }
688 else 706 else
689 num_set_rvalue (ret, num_get_rvalue (a) + num_get_rvalue (b)); 707 {
708 RVALUE av = num_get_rvalue (a);
709 RVALUE bv = num_get_rvalue (b);
690 710
691 return ret; 711 switch (op)
692} 712 {
713 case NUM_ADD: av += bv; break;
714 case NUM_SUB: av -= bv; break;
715 case NUM_MUL: av *= bv; break;
716 case NUM_INTDIV: av /= bv; break;
717 }
693 718
694static num 719 num_set_rvalue (ret, av);
695num_mul (num a, num b) 720 }
696{
697 num ret;
698
699 num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b));
700
701 if (num_is_fixnum (ret))
702 num_set_ivalue (ret, num_get_ivalue (a) * num_get_ivalue (b));
703 else
704 num_set_rvalue (ret, num_get_rvalue (a) * num_get_rvalue (b));
705 721
706 return ret; 722 return ret;
707} 723}
708 724
709static num 725static num
… …
720 736
721 return ret; 737 return ret;
722} 738}
723 739
724static num 740static num
725num_intdiv (num a, num b)
726{
727 num ret;
728
729 num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b));
730
731 if (num_is_fixnum (ret))
732 num_set_ivalue (ret, num_get_ivalue (a) / num_get_ivalue (b));
733 else
734 num_set_rvalue (ret, num_get_rvalue (a) / num_get_rvalue (b));
735
736 return ret;
737}
738
739static num
740num_sub (num a, num b)
741{
742 num ret;
743
744 num_set_fixnum (ret, num_is_fixnum (a) && num_is_fixnum (b));
745
746 if (num_is_fixnum (ret))
747 num_set_ivalue (ret, num_get_ivalue (a) - num_get_ivalue (b));
748 else
749 num_set_rvalue (ret, num_get_rvalue (a) - num_get_rvalue (b));
750
751 return ret;
752}
753
754static num
755num_rem (num a, num b) 741num_rem (num a, num b)
756{ 742{
757 num ret; 743 num ret;
758 long e1, e2, res; 744 long e1, e2, res;
759 745
… …
795 781
796 num_set_ivalue (ret, res); 782 num_set_ivalue (ret, res);
797 return ret; 783 return ret;
798} 784}
799 785
786/* this completely disrespects NaNs */
800static int 787static int
801num_eq (num a, num b) 788num_cmp (num a, num b)
802{ 789{
790 int is_fixnum = num_is_fixnum (a) && num_is_fixnum (b);
803 int ret; 791 int ret;
804 int is_fixnum = num_is_fixnum (a) && num_is_fixnum (b);
805 792
806 if (is_fixnum) 793 if (is_fixnum)
807 ret = num_get_ivalue (a) == num_get_ivalue (b); 794 {
795 IVALUE av = num_get_ivalue (a);
796 IVALUE bv = num_get_ivalue (b);
797
798 ret = av == bv ? 0 : av < bv ? -1 : +1;
799 }
808 else 800 else
809 ret = num_get_rvalue (a) == num_get_rvalue (b); 801 {
802 RVALUE av = num_get_rvalue (a);
803 RVALUE bv = num_get_rvalue (b);
804
805 ret = av == bv ? 0 : av < bv ? -1 : +1;
806 }
810 807
811 return ret; 808 return ret;
812}
813
814
815static int
816num_gt (num a, num b)
817{
818 int ret;
819 int is_fixnum = num_is_fixnum (a) && num_is_fixnum (b);
820
821 if (is_fixnum)
822 ret = num_get_ivalue (a) > num_get_ivalue (b);
823 else
824 ret = num_get_rvalue (a) > num_get_rvalue (b);
825
826 return ret;
827}
828
829static int
830num_ge (num a, num b)
831{
832 return !num_lt (a, b);
833}
834
835static int
836num_lt (num a, num b)
837{
838 int ret;
839 int is_fixnum = num_is_fixnum (a) && num_is_fixnum (b);
840
841 if (is_fixnum)
842 ret = num_get_ivalue (a) < num_get_ivalue (b);
843 else
844 ret = num_get_rvalue (a) < num_get_rvalue (b);
845
846 return ret;
847}
848
849static int
850num_le (num a, num b)
851{
852 return !num_gt (a, b);
853} 809}
854 810
855#if USE_MATH 811#if USE_MATH
856 812
857/* Round to nearest. Round to even if midway */ 813/* Round to nearest. Round to even if midway */
… …
867 return ce; 823 return ce;
868 else if (dfl < dce) 824 else if (dfl < dce)
869 return fl; 825 return fl;
870 else 826 else
871 { 827 {
872 if (fmod (fl, 2.0) == 0.0) /* I imagine this holds */ 828 if (fmod (fl, 2) == 0) /* I imagine this holds */
873 return fl; 829 return fl;
874 else 830 else
875 return ce; 831 return ce;
876 } 832 }
877} 833}
… …
883#if USE_REAL 839#if USE_REAL
884 return x < DBL_MIN && x > -DBL_MIN; /* why the hate of denormals? this should be == 0. */ 840 return x < DBL_MIN && x > -DBL_MIN; /* why the hate of denormals? this should be == 0. */
885#else 841#else
886 return x == 0; 842 return x == 0;
887#endif 843#endif
888}
889
890static long
891binary_decode (const char *s)
892{
893 long x = 0;
894
895 while (*s != 0 && (*s == '1' || *s == '0'))
896 {
897 x <<= 1;
898 x += *s - '0';
899 s++;
900 }
901
902 return x;
903} 844}
904 845
905/* allocate new cell segment */ 846/* allocate new cell segment */
906static int 847static int
907alloc_cellseg (SCHEME_P_ int n) 848alloc_cellseg (SCHEME_P_ int n)
… …
981 922
982/* get new cell. parameter a, b is marked by gc. */ 923/* get new cell. parameter a, b is marked by gc. */
983static INLINE pointer 924static INLINE pointer
984get_cell_x (SCHEME_P_ pointer a, pointer b) 925get_cell_x (SCHEME_P_ pointer a, pointer b)
985{ 926{
986 if (SCHEME_V->free_cell == NIL) 927 if (ecb_expect_false (SCHEME_V->free_cell == NIL))
987 { 928 {
988 if (SCHEME_V->no_memory && USE_ERROR_CHECKING) 929 if (SCHEME_V->no_memory && USE_ERROR_CHECKING)
989 return S_SINK; 930 return S_SINK;
990 931
991 if (SCHEME_V->free_cell == NIL) 932 if (SCHEME_V->free_cell == NIL)
… …
1320 } 1261 }
1321 1262
1322 return q; 1263 return q;
1323} 1264}
1324 1265
1325/* get new string */
1326INTERFACE pointer 1266INTERFACE pointer
1327mk_string (SCHEME_P_ const char *str) 1267mk_empty_string (SCHEME_P_ uint32_t len, char fill)
1328{ 1268{
1329 return mk_counted_string (SCHEME_A_ str, strlen (str)); 1269 pointer x = get_cell (SCHEME_A_ NIL, NIL);
1270
1271 set_typeflag (x, T_STRING | T_ATOM);
1272 strvalue (x) = store_string (SCHEME_A_ len, 0, fill);
1273 strlength (x) = len;
1274 return x;
1330} 1275}
1331 1276
1332INTERFACE pointer 1277INTERFACE pointer
1333mk_counted_string (SCHEME_P_ const char *str, uint32_t len) 1278mk_counted_string (SCHEME_P_ const char *str, uint32_t len)
1334{ 1279{
… …
1339 strlength (x) = len; 1284 strlength (x) = len;
1340 return x; 1285 return x;
1341} 1286}
1342 1287
1343INTERFACE pointer 1288INTERFACE pointer
1344mk_empty_string (SCHEME_P_ uint32_t len, char fill) 1289mk_string (SCHEME_P_ const char *str)
1345{ 1290{
1346 pointer x = get_cell (SCHEME_A_ NIL, NIL); 1291 return mk_counted_string (SCHEME_A_ str, strlen (str));
1347
1348 set_typeflag (x, T_STRING | T_ATOM);
1349 strvalue (x) = store_string (SCHEME_A_ len, 0, fill);
1350 strlength (x) = len;
1351 return x;
1352} 1292}
1353 1293
1354INTERFACE pointer 1294INTERFACE pointer
1355mk_vector (SCHEME_P_ uint32_t len) 1295mk_vector (SCHEME_P_ uint32_t len)
1356{ 1296{
… …
1393 1333
1394INTERFACE pointer 1334INTERFACE pointer
1395gensym (SCHEME_P) 1335gensym (SCHEME_P)
1396{ 1336{
1397 pointer x; 1337 pointer x;
1398 char name[40];
1399 1338
1400 for (; SCHEME_V->gensym_cnt < LONG_MAX; SCHEME_V->gensym_cnt++) 1339 for (; SCHEME_V->gensym_cnt < LONG_MAX; SCHEME_V->gensym_cnt++)
1401 { 1340 {
1402 strcpy (name, "gensym-"); 1341 char name[40] = "gensym-";
1403 xnum (name + 7, SCHEME_V->gensym_cnt); 1342 xnum (name + 7, SCHEME_V->gensym_cnt);
1404 1343
1405 /* first check oblist */ 1344 /* first check oblist */
1406 x = oblist_find_by_name (SCHEME_A_ name); 1345 x = oblist_find_by_name (SCHEME_A_ name);
1407 1346
1408 if (x != NIL) 1347 if (x == NIL)
1409 continue;
1410 else
1411 { 1348 {
1412 x = oblist_add_by_name (SCHEME_A_ name); 1349 x = oblist_add_by_name (SCHEME_A_ name);
1413 return x; 1350 return x;
1414 } 1351 }
1415 } 1352 }
… …
1424 char c, *p; 1361 char c, *p;
1425 int has_dec_point = 0; 1362 int has_dec_point = 0;
1426 int has_fp_exp = 0; 1363 int has_fp_exp = 0;
1427 1364
1428#if USE_COLON_HOOK 1365#if USE_COLON_HOOK
1429
1430 if ((p = strstr (q, "::")) != 0) 1366 if ((p = strstr (q, "::")) != 0)
1431 { 1367 {
1432 *p = 0; 1368 *p = 0;
1433 return cons (SCHEME_V->COLON_HOOK, 1369 return cons (SCHEME_V->COLON_HOOK,
1434 cons (cons (SCHEME_V->QUOTE, 1370 cons (cons (SCHEME_V->QUOTE,
1435 cons (mk_atom (SCHEME_A_ p + 2), NIL)), cons (mk_symbol (SCHEME_A_ strlwr (q)), NIL))); 1371 cons (mk_atom (SCHEME_A_ p + 2), NIL)), cons (mk_symbol (SCHEME_A_ strlwr (q)), NIL)));
1436 } 1372 }
1437
1438#endif 1373#endif
1439 1374
1440 p = q; 1375 p = q;
1441 c = *p++; 1376 c = *p++;
1442 1377
… …
1503 1438
1504/* make constant */ 1439/* make constant */
1505static pointer 1440static pointer
1506mk_sharp_const (SCHEME_P_ char *name) 1441mk_sharp_const (SCHEME_P_ char *name)
1507{ 1442{
1508 long x;
1509 char tmp[STRBUFFSIZE];
1510
1511 if (!strcmp (name, "t")) 1443 if (!strcmp (name, "t"))
1512 return S_T; 1444 return S_T;
1513 else if (!strcmp (name, "f")) 1445 else if (!strcmp (name, "f"))
1514 return S_F; 1446 return S_F;
1515 else if (*name == 'o') /* #o (octal) */
1516 {
1517 x = strtol (name + 1, 0, 8);
1518 return mk_integer (SCHEME_A_ x);
1519 }
1520 else if (*name == 'd') /* #d (decimal) */
1521 {
1522 x = strtol (name + 1, 0, 10);
1523 return mk_integer (SCHEME_A_ x);
1524 }
1525 else if (*name == 'x') /* #x (hex) */
1526 {
1527 x = strtol (name + 1, 0, 16);
1528 return mk_integer (SCHEME_A_ x);
1529 }
1530 else if (*name == 'b') /* #b (binary) */
1531 {
1532 x = binary_decode (name + 1);
1533 return mk_integer (SCHEME_A_ x);
1534 }
1535 else if (*name == '\\') /* #\w (character) */ 1447 else if (*name == '\\') /* #\w (character) */
1536 { 1448 {
1537 int c = 0; 1449 int c;
1538 1450
1539 if (stricmp (name + 1, "space") == 0) 1451 if (stricmp (name + 1, "space") == 0)
1540 c = ' '; 1452 c = ' ';
1541 else if (stricmp (name + 1, "newline") == 0) 1453 else if (stricmp (name + 1, "newline") == 0)
1542 c = '\n'; 1454 c = '\n';
… …
1544 c = '\r'; 1456 c = '\r';
1545 else if (stricmp (name + 1, "tab") == 0) 1457 else if (stricmp (name + 1, "tab") == 0)
1546 c = '\t'; 1458 c = '\t';
1547 else if (name[1] == 'x' && name[2] != 0) 1459 else if (name[1] == 'x' && name[2] != 0)
1548 { 1460 {
1549 int c1 = strtol (name + 2, 0, 16); 1461 long c1 = strtol (name + 2, 0, 16);
1550 1462
1551 if (c1 <= UCHAR_MAX) 1463 if (0 <= c1 && c1 <= UCHAR_MAX)
1552 c = c1; 1464 c = c1;
1553 else 1465 else
1554 return NIL; 1466 return NIL;
1555 1467 }
1556#if USE_ASCII_NAMES 1468#if USE_ASCII_NAMES
1557 }
1558 else if (is_ascii_name (name + 1, &c)) 1469 else if (is_ascii_name (name + 1, &c))
1559 {
1560 /* nothing */ 1470 /* nothing */;
1561#endif 1471#endif
1562 }
1563 else if (name[2] == 0) 1472 else if (name[2] == 0)
1564 c = name[1]; 1473 c = name[1];
1565 else 1474 else
1566 return NIL; 1475 return NIL;
1567 1476
1568 return mk_character (SCHEME_A_ c); 1477 return mk_character (SCHEME_A_ c);
1569 } 1478 }
1570 else 1479 else
1480 {
1481 /* identify base by string index */
1482 const char baseidx[17] = "ffbf" "ffff" "ofdf" "ffff" "x";
1483 char *base = strchr (baseidx, *name);
1484
1485 if (base)
1486 return mk_integer (SCHEME_A_ strtol (name + 1, 0, base - baseidx));
1487
1571 return NIL; 1488 return NIL;
1489 }
1572} 1490}
1573 1491
1574/* ========== garbage collector ========== */ 1492/* ========== garbage collector ========== */
1575 1493
1576/*-- 1494/*--
1577 * We use algorithm E (Knuth, The Art of Computer Programming Vol.1, 1495 * We use algorithm E (Knuth, The Art of Computer Programming Vol.1,
1578 * sec. 2.3.5), the Schorr-Deutsch-Waite link-inversion algorithm, 1496 * sec. 2.3.5), the Schorr-Deutsch-Waite link-inversion algorithm,
1579 * for marking. 1497 * for marking.
1498 *
1499 * The exception is vectors - vectors are currently marked recursively,
1500 * which is inherited form tinyscheme and could be fixed by having another
1501 * word of context in the vector
1580 */ 1502 */
1581static void 1503static void
1582mark (pointer a) 1504mark (pointer a)
1583{ 1505{
1584 pointer t, q, p; 1506 pointer t, q, p;
… …
1586 t = 0; 1508 t = 0;
1587 p = a; 1509 p = a;
1588E2: 1510E2:
1589 setmark (p); 1511 setmark (p);
1590 1512
1591 if (is_vector (p)) 1513 if (ecb_expect_false (is_vector (p)))
1592 { 1514 {
1593 int i; 1515 int i;
1594 1516
1595 for (i = 0; i < p->object.vector.length; i++) 1517 for (i = 0; i < p->object.vector.length; i++)
1596 mark (vecvalue (p)[i]); 1518 mark (vecvalue (p)[i]);
… …
1719} 1641}
1720 1642
1721static void 1643static void
1722finalize_cell (SCHEME_P_ pointer a) 1644finalize_cell (SCHEME_P_ pointer a)
1723{ 1645{
1646 /* TODO, fast bitmap check? */
1724 if (is_string (a)) 1647 if (is_string (a))
1725 free (strvalue (a)); 1648 free (strvalue (a));
1726 else if (is_vector (a)) 1649 else if (is_vector (a))
1727 free (vecvalue (a)); 1650 free (vecvalue (a));
1728#if USE_PORTS 1651#if USE_PORTS
… …
2823 } 2746 }
2824 else if (is_number (a)) 2747 else if (is_number (a))
2825 { 2748 {
2826 if (is_number (b)) 2749 if (is_number (b))
2827 if (num_is_integer (a) == num_is_integer (b)) 2750 if (num_is_integer (a) == num_is_integer (b))
2828 return num_eq (nvalue (a), nvalue (b)); 2751 return num_cmp (nvalue (a), nvalue (b)) == 0;
2829 2752
2830 return 0; 2753 return 0;
2831 } 2754 }
2832 else if (is_character (a)) 2755 else if (is_character (a))
2833 { 2756 {
… …
3112 next_frame = SCHEME_V->dump_base + nframes; 3035 next_frame = SCHEME_V->dump_base + nframes;
3113 3036
3114 next_frame->op = op; 3037 next_frame->op = op;
3115 next_frame->args = args; 3038 next_frame->args = args;
3116 next_frame->envir = SCHEME_V->envir; 3039 next_frame->envir = SCHEME_V->envir;
3117 next_frame->code = code; 3040 next_frame->code = code;
3118 3041
3119 SCHEME_V->dump = (pointer)(uintptr_t)(nframes + 1); 3042 SCHEME_V->dump = (pointer)(uintptr_t)(nframes + 1);
3120} 3043}
3121 3044
3122static pointer 3045static pointer
… …
3295#define s_retbool(tf) s_return ((tf) ? S_T : S_F) 3218#define s_retbool(tf) s_return ((tf) ? S_T : S_F)
3296 3219
3297static pointer 3220static pointer
3298opexe_0 (SCHEME_P_ enum scheme_opcodes op) 3221opexe_0 (SCHEME_P_ enum scheme_opcodes op)
3299{ 3222{
3223 pointer args = SCHEME_V->args;
3300 pointer x, y; 3224 pointer x, y;
3301 3225
3302 switch (op) 3226 switch (op)
3303 { 3227 {
3304 case OP_LOAD: /* load */ 3228 case OP_LOAD: /* load */
3305 if (file_interactive (SCHEME_A)) 3229 if (file_interactive (SCHEME_A))
3306 { 3230 {
3307 xwrstr ("Loading "); xwrstr (strvalue (car (SCHEME_V->args))); xwrstr ("\n"); 3231 xwrstr ("Loading "); xwrstr (strvalue (car (args))); xwrstr ("\n");
3308 //D fprintf (SCHEME_V->outport->object.port->rep.stdio.file, "Loading %s\n", strvalue (car (SCHEME_V->args))); 3232 //D fprintf (SCHEME_V->outport->object.port->rep.stdio.file, "Loading %s\n", strvalue (car (args)));
3309 } 3233 }
3310 3234
3311 if (!file_push (SCHEME_A_ strvalue (car (SCHEME_V->args)))) 3235 if (!file_push (SCHEME_A_ strvalue (car (args))))
3312 Error_1 ("unable to open", car (SCHEME_V->args)); 3236 Error_1 ("unable to open", car (args));
3313 else 3237 else
3314 { 3238 {
3315 SCHEME_V->args = mk_integer (SCHEME_A_ SCHEME_V->file_i); 3239 SCHEME_V->args = mk_integer (SCHEME_A_ SCHEME_V->file_i);
3316 s_goto (OP_T0LVL); 3240 s_goto (OP_T0LVL);
3317 } 3241 }
… …
3391 case OP_EVAL: /* main part of evaluation */ 3315 case OP_EVAL: /* main part of evaluation */
3392#if USE_TRACING 3316#if USE_TRACING
3393 if (SCHEME_V->tracing) 3317 if (SCHEME_V->tracing)
3394 { 3318 {
3395 /*s_save(SCHEME_A_ OP_VALUEPRINT,NIL,NIL); */ 3319 /*s_save(SCHEME_A_ OP_VALUEPRINT,NIL,NIL); */
3396 s_save (SCHEME_A_ OP_REAL_EVAL, SCHEME_V->args, SCHEME_V->code); 3320 s_save (SCHEME_A_ OP_REAL_EVAL, args, SCHEME_V->code);
3397 SCHEME_V->args = SCHEME_V->code; 3321 SCHEME_V->args = SCHEME_V->code;
3398 putstr (SCHEME_A_ "\nEval: "); 3322 putstr (SCHEME_A_ "\nEval: ");
3399 s_goto (OP_P0LIST); 3323 s_goto (OP_P0LIST);
3400 } 3324 }
3401 3325
… …
3445 SCHEME_V->code = cdr (SCHEME_V->code); 3369 SCHEME_V->code = cdr (SCHEME_V->code);
3446 s_goto (OP_E1ARGS); 3370 s_goto (OP_E1ARGS);
3447 } 3371 }
3448 3372
3449 case OP_E1ARGS: /* eval arguments */ 3373 case OP_E1ARGS: /* eval arguments */
3450 SCHEME_V->args = cons (SCHEME_V->value, SCHEME_V->args); 3374 args = cons (SCHEME_V->value, args);
3451 3375
3452 if (is_pair (SCHEME_V->code)) /* continue */ 3376 if (is_pair (SCHEME_V->code)) /* continue */
3453 { 3377 {
3454 s_save (SCHEME_A_ OP_E1ARGS, SCHEME_V->args, cdr (SCHEME_V->code)); 3378 s_save (SCHEME_A_ OP_E1ARGS, args, cdr (SCHEME_V->code));
3455 SCHEME_V->code = car (SCHEME_V->code); 3379 SCHEME_V->code = car (SCHEME_V->code);
3456 SCHEME_V->args = NIL; 3380 SCHEME_V->args = NIL;
3457 s_goto (OP_EVAL); 3381 s_goto (OP_EVAL);
3458 } 3382 }
3459 else /* end */ 3383 else /* end */
3460 { 3384 {
3461 SCHEME_V->args = reverse_in_place (SCHEME_A_ NIL, SCHEME_V->args); 3385 args = reverse_in_place (SCHEME_A_ NIL, args);
3462 SCHEME_V->code = car (SCHEME_V->args); 3386 SCHEME_V->code = car (args);
3463 SCHEME_V->args = cdr (SCHEME_V->args); 3387 SCHEME_V->args = cdr (args);
3464 s_goto (OP_APPLY); 3388 s_goto (OP_APPLY);
3465 } 3389 }
3466 3390
3467#if USE_TRACING 3391#if USE_TRACING
3468 3392
3469 case OP_TRACING: 3393 case OP_TRACING:
3470 { 3394 {
3471 int tr = SCHEME_V->tracing; 3395 int tr = SCHEME_V->tracing;
3472 3396
3473 SCHEME_V->tracing = ivalue (car (SCHEME_V->args)); 3397 SCHEME_V->tracing = ivalue (car (args));
3474 s_return (mk_integer (SCHEME_A_ tr)); 3398 s_return (mk_integer (SCHEME_A_ tr));
3475 } 3399 }
3476 3400
3477#endif 3401#endif
3478 3402
3479 case OP_APPLY: /* apply 'code' to 'args' */ 3403 case OP_APPLY: /* apply 'code' to 'args' */
3480#if USE_TRACING 3404#if USE_TRACING
3481 if (SCHEME_V->tracing) 3405 if (SCHEME_V->tracing)
3482 { 3406 {
3483 s_save (SCHEME_A_ OP_REAL_APPLY, SCHEME_V->args, SCHEME_V->code); 3407 s_save (SCHEME_A_ OP_REAL_APPLY, args, SCHEME_V->code);
3484 SCHEME_V->print_flag = 1; 3408 SCHEME_V->print_flag = 1;
3485 /* SCHEME_V->args=cons(SCHEME_V->code,SCHEME_V->args); */ 3409 /* args=cons(SCHEME_V->code,args); */
3486 putstr (SCHEME_A_ "\nApply to: "); 3410 putstr (SCHEME_A_ "\nApply to: ");
3487 s_goto (OP_P0LIST); 3411 s_goto (OP_P0LIST);
3488 } 3412 }
3489 3413
3490 /* fall through */ 3414 /* fall through */
3491 3415
3492 case OP_REAL_APPLY: 3416 case OP_REAL_APPLY:
3493#endif 3417#endif
3494 if (is_proc (SCHEME_V->code)) 3418 if (is_proc (SCHEME_V->code))
3495 {
3496 s_goto (procnum (SCHEME_V->code)); /* PROCEDURE */ 3419 s_goto (procnum (SCHEME_V->code)); /* PROCEDURE */
3497 }
3498 else if (is_foreign (SCHEME_V->code)) 3420 else if (is_foreign (SCHEME_V->code))
3499 { 3421 {
3500 /* Keep nested calls from GC'ing the arglist */ 3422 /* Keep nested calls from GC'ing the arglist */
3501 push_recent_alloc (SCHEME_A_ SCHEME_V->args, NIL); 3423 push_recent_alloc (SCHEME_A_ args, NIL);
3502 x = SCHEME_V->code->object.ff (SCHEME_A_ SCHEME_V->args); 3424 x = SCHEME_V->code->object.ff (SCHEME_A_ args);
3503 3425
3504 s_return (x); 3426 s_return (x);
3505 } 3427 }
3506 else if (is_closure (SCHEME_V->code) || is_macro (SCHEME_V->code) || is_promise (SCHEME_V->code)) /* CLOSURE */ 3428 else if (is_closure (SCHEME_V->code) || is_macro (SCHEME_V->code) || is_promise (SCHEME_V->code)) /* CLOSURE */
3507 { 3429 {
3508 /* Should not accept promise */ 3430 /* Should not accept promise */
3509 /* make environment */ 3431 /* make environment */
3510 new_frame_in_env (SCHEME_A_ closure_env (SCHEME_V->code)); 3432 new_frame_in_env (SCHEME_A_ closure_env (SCHEME_V->code));
3511 3433
3512 for (x = car (closure_code (SCHEME_V->code)), y = SCHEME_V->args; is_pair (x); x = cdr (x), y = cdr (y)) 3434 for (x = car (closure_code (SCHEME_V->code)), y = args; is_pair (x); x = cdr (x), y = cdr (y))
3513 { 3435 {
3514 if (y == NIL) 3436 if (y == NIL)
3515 Error_0 ("not enough arguments"); 3437 Error_0 ("not enough arguments");
3516 else 3438 else
3517 new_slot_in_env (SCHEME_A_ car (x), car (y)); 3439 new_slot_in_env (SCHEME_A_ car (x), car (y));
… …
3535 s_goto (OP_BEGIN); 3457 s_goto (OP_BEGIN);
3536 } 3458 }
3537 else if (is_continuation (SCHEME_V->code)) /* CONTINUATION */ 3459 else if (is_continuation (SCHEME_V->code)) /* CONTINUATION */
3538 { 3460 {
3539 ss_set_cont (SCHEME_A_ cont_dump (SCHEME_V->code)); 3461 ss_set_cont (SCHEME_A_ cont_dump (SCHEME_V->code));
3540 s_return (SCHEME_V->args != NIL ? car (SCHEME_V->args) : NIL); 3462 s_return (args != NIL ? car (args) : NIL);
3541 } 3463 }
3542 else 3464 else
3543 Error_0 ("illegal function"); 3465 Error_0 ("illegal function");
3544 3466
3545 case OP_DOMACRO: /* do macro */ 3467 case OP_DOMACRO: /* do macro */
… …
3554 { 3476 {
3555 pointer f = find_slot_in_env (SCHEME_A_ SCHEME_V->envir, SCHEME_V->COMPILE_HOOK, 1); 3477 pointer f = find_slot_in_env (SCHEME_A_ SCHEME_V->envir, SCHEME_V->COMPILE_HOOK, 1);
3556 3478
3557 if (f != NIL) 3479 if (f != NIL)
3558 { 3480 {
3559 s_save (SCHEME_A_ OP_LAMBDA1, SCHEME_V->args, SCHEME_V->code); 3481 s_save (SCHEME_A_ OP_LAMBDA1, args, SCHEME_V->code);
3560 SCHEME_V->args = cons (SCHEME_V->code, NIL); 3482 SCHEME_V->args = cons (SCHEME_V->code, NIL);
3561 SCHEME_V->code = slot_value_in_env (f); 3483 SCHEME_V->code = slot_value_in_env (f);
3562 s_goto (OP_APPLY); 3484 s_goto (OP_APPLY);
3563 } 3485 }
3564 3486
… …
3575 s_return (mk_closure (SCHEME_A_ SCHEME_V->code, SCHEME_V->envir)); 3497 s_return (mk_closure (SCHEME_A_ SCHEME_V->code, SCHEME_V->envir));
3576 3498
3577#endif 3499#endif
3578 3500
3579 case OP_MKCLOSURE: /* make-closure */ 3501 case OP_MKCLOSURE: /* make-closure */
3580 x = car (SCHEME_V->args); 3502 x = car (args);
3581 3503
3582 if (car (x) == SCHEME_V->LAMBDA) 3504 if (car (x) == SCHEME_V->LAMBDA)
3583 x = cdr (x); 3505 x = cdr (x);
3584 3506
3585 if (cdr (SCHEME_V->args) == NIL) 3507 if (cdr (args) == NIL)
3586 y = SCHEME_V->envir; 3508 y = SCHEME_V->envir;
3587 else 3509 else
3588 y = cadr (SCHEME_V->args); 3510 y = cadr (args);
3589 3511
3590 s_return (mk_closure (SCHEME_A_ x, y)); 3512 s_return (mk_closure (SCHEME_A_ x, y));
3591 3513
3592 case OP_QUOTE: /* quote */ 3514 case OP_QUOTE: /* quote */
3593 s_return (car (SCHEME_V->code)); 3515 s_return (car (SCHEME_V->code));
… …
3625 3547
3626 3548
3627 case OP_DEFP: /* defined? */ 3549 case OP_DEFP: /* defined? */
3628 x = SCHEME_V->envir; 3550 x = SCHEME_V->envir;
3629 3551
3630 if (cdr (SCHEME_V->args) != NIL) 3552 if (cdr (args) != NIL)
3631 x = cadr (SCHEME_V->args); 3553 x = cadr (args);
3632 3554
3633 s_retbool (find_slot_in_env (SCHEME_A_ x, car (SCHEME_V->args), 1) != NIL); 3555 s_retbool (find_slot_in_env (SCHEME_A_ x, car (args), 1) != NIL);
3634 3556
3635 case OP_SET0: /* set! */ 3557 case OP_SET0: /* set! */
3636 if (is_immutable (car (SCHEME_V->code))) 3558 if (is_immutable (car (SCHEME_V->code)))
3637 Error_1 ("set!: unable to alter immutable variable", car (SCHEME_V->code)); 3559 Error_1 ("set!: unable to alter immutable variable", car (SCHEME_V->code));
3638 3560
… …
3669 3591
3670 case OP_IF1: /* if */ 3592 case OP_IF1: /* if */
3671 if (is_true (SCHEME_V->value)) 3593 if (is_true (SCHEME_V->value))
3672 SCHEME_V->code = car (SCHEME_V->code); 3594 SCHEME_V->code = car (SCHEME_V->code);
3673 else 3595 else
3674 SCHEME_V->code = cadr (SCHEME_V->code); /* (if #f 1) ==> () because 3596 SCHEME_V->code = cadr (SCHEME_V->code); /* (if #f 1) ==> () because * car(NIL) = NIL */
3675
3676 * car(NIL) = NIL */
3677 s_goto (OP_EVAL); 3597 s_goto (OP_EVAL);
3678 3598
3679 case OP_LET0: /* let */ 3599 case OP_LET0: /* let */
3680 SCHEME_V->args = NIL; 3600 SCHEME_V->args = NIL;
3681 SCHEME_V->value = SCHEME_V->code; 3601 SCHEME_V->value = SCHEME_V->code;
3682 SCHEME_V->code = is_symbol (car (SCHEME_V->code)) ? cadr (SCHEME_V->code) : car (SCHEME_V->code); 3602 SCHEME_V->code = is_symbol (car (SCHEME_V->code)) ? cadr (SCHEME_V->code) : car (SCHEME_V->code);
3683 s_goto (OP_LET1); 3603 s_goto (OP_LET1);
3684 3604
3685 case OP_LET1: /* let (calculate parameters) */ 3605 case OP_LET1: /* let (calculate parameters) */
3686 SCHEME_V->args = cons (SCHEME_V->value, SCHEME_V->args); 3606 args = cons (SCHEME_V->value, args);
3687 3607
3688 if (is_pair (SCHEME_V->code)) /* continue */ 3608 if (is_pair (SCHEME_V->code)) /* continue */
3689 { 3609 {
3690 if (!is_pair (car (SCHEME_V->code)) || !is_pair (cdar (SCHEME_V->code))) 3610 if (!is_pair (car (SCHEME_V->code)) || !is_pair (cdar (SCHEME_V->code)))
3691 Error_1 ("Bad syntax of binding spec in let :", car (SCHEME_V->code)); 3611 Error_1 ("Bad syntax of binding spec in let :", car (SCHEME_V->code));
3692 3612
3693 s_save (SCHEME_A_ OP_LET1, SCHEME_V->args, cdr (SCHEME_V->code)); 3613 s_save (SCHEME_A_ OP_LET1, args, cdr (SCHEME_V->code));
3694 SCHEME_V->code = cadar (SCHEME_V->code); 3614 SCHEME_V->code = cadar (SCHEME_V->code);
3695 SCHEME_V->args = NIL; 3615 SCHEME_V->args = NIL;
3696 s_goto (OP_EVAL); 3616 s_goto (OP_EVAL);
3697 } 3617 }
3698 else /* end */ 3618 else /* end */
3699 { 3619 {
3700 SCHEME_V->args = reverse_in_place (SCHEME_A_ NIL, SCHEME_V->args); 3620 args = reverse_in_place (SCHEME_A_ NIL, args);
3701 SCHEME_V->code = car (SCHEME_V->args); 3621 SCHEME_V->code = car (args);
3702 SCHEME_V->args = cdr (SCHEME_V->args); 3622 SCHEME_V->args = cdr (args);
3703 s_goto (OP_LET2); 3623 s_goto (OP_LET2);
3704 } 3624 }
3705 3625
3706 case OP_LET2: /* let */ 3626 case OP_LET2: /* let */
3707 new_frame_in_env (SCHEME_A_ SCHEME_V->envir); 3627 new_frame_in_env (SCHEME_A_ SCHEME_V->envir);
3708 3628
3709 for (x = is_symbol (car (SCHEME_V->code)) ? cadr (SCHEME_V->code) : car (SCHEME_V->code), y = SCHEME_V->args; 3629 for (x = is_symbol (car (SCHEME_V->code)) ? cadr (SCHEME_V->code) : car (SCHEME_V->code), y = args;
3710 y != NIL; x = cdr (x), y = cdr (y)) 3630 y != NIL; x = cdr (x), y = cdr (y))
3711 new_slot_in_env (SCHEME_A_ caar (x), car (y)); 3631 new_slot_in_env (SCHEME_A_ caar (x), car (y));
3712 3632
3713 if (is_symbol (car (SCHEME_V->code))) /* named let */ 3633 if (is_symbol (car (SCHEME_V->code))) /* named let */
3714 { 3634 {
3715 for (x = cadr (SCHEME_V->code), SCHEME_V->args = NIL; x != NIL; x = cdr (x)) 3635 for (x = cadr (SCHEME_V->code), args = NIL; x != NIL; x = cdr (x))
3716 { 3636 {
3717 if (!is_pair (x)) 3637 if (!is_pair (x))
3718 Error_1 ("Bad syntax of binding in let :", x); 3638 Error_1 ("Bad syntax of binding in let :", x);
3719 3639
3720 if (!is_list (SCHEME_A_ car (x))) 3640 if (!is_list (SCHEME_A_ car (x)))
3721 Error_1 ("Bad syntax of binding in let :", car (x)); 3641 Error_1 ("Bad syntax of binding in let :", car (x));
3722 3642
3723 SCHEME_V->args = cons (caar (x), SCHEME_V->args); 3643 args = cons (caar (x), args);
3724 } 3644 }
3725 3645
3726 x =
3727 mk_closure (SCHEME_A_ cons (reverse_in_place (SCHEME_A_ NIL, SCHEME_V->args), cddr (SCHEME_V->code)), 3646 x = mk_closure (SCHEME_A_ cons (reverse_in_place (SCHEME_A_ NIL, args), cddr (SCHEME_V->code)),
3728 SCHEME_V->envir); 3647 SCHEME_V->envir);
3729 new_slot_in_env (SCHEME_A_ car (SCHEME_V->code), x); 3648 new_slot_in_env (SCHEME_A_ car (SCHEME_V->code), x);
3730 SCHEME_V->code = cddr (SCHEME_V->code); 3649 SCHEME_V->code = cddr (SCHEME_V->code);
3731 SCHEME_V->args = NIL;
3732 } 3650 }
3733 else 3651 else
3734 { 3652 {
3735 SCHEME_V->code = cdr (SCHEME_V->code); 3653 SCHEME_V->code = cdr (SCHEME_V->code);
3654 }
3655
3736 SCHEME_V->args = NIL; 3656 SCHEME_V->args = NIL;
3737 }
3738
3739 s_goto (OP_BEGIN); 3657 s_goto (OP_BEGIN);
3740 3658
3741 case OP_LET0AST: /* let* */ 3659 case OP_LET0AST: /* let* */
3742 if (car (SCHEME_V->code) == NIL) 3660 if (car (SCHEME_V->code) == NIL)
3743 { 3661 {
… …
3761 new_slot_in_env (SCHEME_A_ caar (SCHEME_V->code), SCHEME_V->value); 3679 new_slot_in_env (SCHEME_A_ caar (SCHEME_V->code), SCHEME_V->value);
3762 SCHEME_V->code = cdr (SCHEME_V->code); 3680 SCHEME_V->code = cdr (SCHEME_V->code);
3763 3681
3764 if (is_pair (SCHEME_V->code)) /* continue */ 3682 if (is_pair (SCHEME_V->code)) /* continue */
3765 { 3683 {
3766 s_save (SCHEME_A_ OP_LET2AST, SCHEME_V->args, SCHEME_V->code); 3684 s_save (SCHEME_A_ OP_LET2AST, args, SCHEME_V->code);
3767 SCHEME_V->code = cadar (SCHEME_V->code); 3685 SCHEME_V->code = cadar (SCHEME_V->code);
3768 SCHEME_V->args = NIL; 3686 SCHEME_V->args = NIL;
3769 s_goto (OP_EVAL); 3687 s_goto (OP_EVAL);
3770 } 3688 }
3771 else /* end */ 3689 else /* end */
3772 { 3690 {
3773 SCHEME_V->code = SCHEME_V->args; 3691 SCHEME_V->code = args;
3774 SCHEME_V->args = NIL; 3692 SCHEME_V->args = NIL;
3775 s_goto (OP_BEGIN); 3693 s_goto (OP_BEGIN);
3776 } 3694 }
3777 3695
3778 case OP_LET0REC: /* letrec */ 3696 case OP_LET0REC: /* letrec */
… …
3781 SCHEME_V->value = SCHEME_V->code; 3699 SCHEME_V->value = SCHEME_V->code;
3782 SCHEME_V->code = car (SCHEME_V->code); 3700 SCHEME_V->code = car (SCHEME_V->code);
3783 s_goto (OP_LET1REC); 3701 s_goto (OP_LET1REC);
3784 3702
3785 case OP_LET1REC: /* letrec (calculate parameters) */ 3703 case OP_LET1REC: /* letrec (calculate parameters) */
3786 SCHEME_V->args = cons (SCHEME_V->value, SCHEME_V->args); 3704 args = cons (SCHEME_V->value, args);
3787 3705
3788 if (is_pair (SCHEME_V->code)) /* continue */ 3706 if (is_pair (SCHEME_V->code)) /* continue */
3789 { 3707 {
3790 if (!is_pair (car (SCHEME_V->code)) || !is_pair (cdar (SCHEME_V->code))) 3708 if (!is_pair (car (SCHEME_V->code)) || !is_pair (cdar (SCHEME_V->code)))
3791 Error_1 ("Bad syntax of binding spec in letrec :", car (SCHEME_V->code)); 3709 Error_1 ("Bad syntax of binding spec in letrec :", car (SCHEME_V->code));
3792 3710
3793 s_save (SCHEME_A_ OP_LET1REC, SCHEME_V->args, cdr (SCHEME_V->code)); 3711 s_save (SCHEME_A_ OP_LET1REC, args, cdr (SCHEME_V->code));
3794 SCHEME_V->code = cadar (SCHEME_V->code); 3712 SCHEME_V->code = cadar (SCHEME_V->code);
3795 SCHEME_V->args = NIL; 3713 SCHEME_V->args = NIL;
3796 s_goto (OP_EVAL); 3714 s_goto (OP_EVAL);
3797 } 3715 }
3798 else /* end */ 3716 else /* end */
3799 { 3717 {
3800 SCHEME_V->args = reverse_in_place (SCHEME_A_ NIL, SCHEME_V->args); 3718 args = reverse_in_place (SCHEME_A_ NIL, args);
3801 SCHEME_V->code = car (SCHEME_V->args); 3719 SCHEME_V->code = car (args);
3802 SCHEME_V->args = cdr (SCHEME_V->args); 3720 SCHEME_V->args = cdr (args);
3803 s_goto (OP_LET2REC); 3721 s_goto (OP_LET2REC);
3804 } 3722 }
3805 3723
3806 case OP_LET2REC: /* letrec */ 3724 case OP_LET2REC: /* letrec */
3807 for (x = car (SCHEME_V->code), y = SCHEME_V->args; y != NIL; x = cdr (x), y = cdr (y)) 3725 for (x = car (SCHEME_V->code), y = args; y != NIL; x = cdr (x), y = cdr (y))
3808 new_slot_in_env (SCHEME_A_ caar (x), car (y)); 3726 new_slot_in_env (SCHEME_A_ caar (x), car (y));
3809 3727
3810 SCHEME_V->code = cdr (SCHEME_V->code); 3728 SCHEME_V->code = cdr (SCHEME_V->code);
3811 SCHEME_V->args = NIL; 3729 SCHEME_V->args = NIL;
3812 s_goto (OP_BEGIN); 3730 s_goto (OP_BEGIN);
… …
3898 s_save (SCHEME_A_ OP_C1STREAM, NIL, cdr (SCHEME_V->code)); 3816 s_save (SCHEME_A_ OP_C1STREAM, NIL, cdr (SCHEME_V->code));
3899 SCHEME_V->code = car (SCHEME_V->code); 3817 SCHEME_V->code = car (SCHEME_V->code);
3900 s_goto (OP_EVAL); 3818 s_goto (OP_EVAL);
3901 3819
3902 case OP_C1STREAM: /* cons-stream */ 3820 case OP_C1STREAM: /* cons-stream */
3903 SCHEME_V->args = SCHEME_V->value; /* save SCHEME_V->value to register SCHEME_V->args for gc */ 3821 SCHEME_V->args = SCHEME_V->value; /* save SCHEME_V->value to register args for gc */
3904 x = mk_closure (SCHEME_A_ cons (NIL, SCHEME_V->code), SCHEME_V->envir); 3822 x = mk_closure (SCHEME_A_ cons (NIL, SCHEME_V->code), SCHEME_V->envir);
3905 set_typeflag (x, T_PROMISE); 3823 set_typeflag (x, T_PROMISE);
3906 s_return (cons (SCHEME_V->args, x)); 3824 s_return (cons (args, x));
3907 3825
3908 case OP_MACRO0: /* macro */ 3826 case OP_MACRO0: /* macro */
3909 if (is_pair (car (SCHEME_V->code))) 3827 if (is_pair (car (SCHEME_V->code)))
3910 { 3828 {
3911 x = caar (SCHEME_V->code); 3829 x = caar (SCHEME_V->code);
… …
3944 { 3862 {
3945 if (!is_pair (y = caar (x))) 3863 if (!is_pair (y = caar (x)))
3946 break; 3864 break;
3947 3865
3948 for (; y != NIL; y = cdr (y)) 3866 for (; y != NIL; y = cdr (y))
3949 {
3950 if (eqv (car (y), SCHEME_V->value)) 3867 if (eqv (car (y), SCHEME_V->value))
3951 break; 3868 break;
3952 }
3953 3869
3954 if (y != NIL) 3870 if (y != NIL)
3955 break; 3871 break;
3956 } 3872 }
3957 3873
… …
3977 s_goto (OP_BEGIN); 3893 s_goto (OP_BEGIN);
3978 else 3894 else
3979 s_return (NIL); 3895 s_return (NIL);
3980 3896
3981 case OP_PAPPLY: /* apply */ 3897 case OP_PAPPLY: /* apply */
3982 SCHEME_V->code = car (SCHEME_V->args); 3898 SCHEME_V->code = car (args);
3983 SCHEME_V->args = list_star (SCHEME_A_ cdr (SCHEME_V->args)); 3899 SCHEME_V->args = list_star (SCHEME_A_ cdr (args));
3984 /*SCHEME_V->args = cadr(SCHEME_V->args); */ 3900 /*SCHEME_V->args = cadr(args); */
3985 s_goto (OP_APPLY); 3901 s_goto (OP_APPLY);
3986 3902
3987 case OP_PEVAL: /* eval */ 3903 case OP_PEVAL: /* eval */
3988 if (cdr (SCHEME_V->args) != NIL) 3904 if (cdr (args) != NIL)
3989 SCHEME_V->envir = cadr (SCHEME_V->args); 3905 SCHEME_V->envir = cadr (args);
3990 3906
3991 SCHEME_V->code = car (SCHEME_V->args); 3907 SCHEME_V->code = car (args);
3992 s_goto (OP_EVAL); 3908 s_goto (OP_EVAL);
3993 3909
3994 case OP_CONTINUATION: /* call-with-current-continuation */ 3910 case OP_CONTINUATION: /* call-with-current-continuation */
3995 SCHEME_V->code = car (SCHEME_V->args); 3911 SCHEME_V->code = car (args);
3996 SCHEME_V->args = cons (mk_continuation (SCHEME_A_ ss_get_cont (SCHEME_A)), NIL); 3912 SCHEME_V->args = cons (mk_continuation (SCHEME_A_ ss_get_cont (SCHEME_A)), NIL);
3997 s_goto (OP_APPLY); 3913 s_goto (OP_APPLY);
3998 } 3914 }
3999 3915
4000 return S_T; 3916 abort ();
4001} 3917}
4002 3918
4003static pointer 3919static pointer
4004opexe_2 (SCHEME_P_ enum scheme_opcodes op) 3920opexe_2 (SCHEME_P_ enum scheme_opcodes op)
4005{ 3921{
4006 pointer x; 3922 pointer args = SCHEME_V->args;
3923 pointer x = car (args);
4007 num v; 3924 num v;
4008 3925
4009#if USE_MATH 3926#if USE_MATH
4010 RVALUE dd; 3927 RVALUE dd;
4011#endif 3928#endif
4012 3929
4013 switch (op) 3930 switch (op)
4014 { 3931 {
4015#if USE_MATH 3932#if USE_MATH
4016
4017 case OP_INEX2EX: /* inexact->exact */ 3933 case OP_INEX2EX: /* inexact->exact */
4018 x = car (SCHEME_V->args);
4019
4020 if (num_is_integer (x)) 3934 if (num_is_integer (x))
4021 s_return (x); 3935 s_return (x);
4022 else if (modf (rvalue_unchecked (x), &dd) == 0.0) 3936 else if (modf (rvalue_unchecked (x), &dd) == 0)
4023 s_return (mk_integer (SCHEME_A_ ivalue (x))); 3937 s_return (mk_integer (SCHEME_A_ ivalue (x)));
4024 else 3938 else
4025 Error_1 ("inexact->exact: not integral:", x); 3939 Error_1 ("inexact->exact: not integral:", x);
4026 3940
4027 case OP_EXP:
4028 x = car (SCHEME_V->args);
4029 s_return (mk_real (SCHEME_A_ exp (rvalue (x)))); 3941 case OP_EXP: s_return (mk_real (SCHEME_A_ exp (rvalue (x))));
4030
4031 case OP_LOG:
4032 x = car (SCHEME_V->args);
4033 s_return (mk_real (SCHEME_A_ log (rvalue (x)))); 3942 case OP_LOG: s_return (mk_real (SCHEME_A_ log (rvalue (x))));
4034
4035 case OP_SIN:
4036 x = car (SCHEME_V->args);
4037 s_return (mk_real (SCHEME_A_ sin (rvalue (x)))); 3943 case OP_SIN: s_return (mk_real (SCHEME_A_ sin (rvalue (x))));
4038
4039 case OP_COS:
4040 x = car (SCHEME_V->args);
4041 s_return (mk_real (SCHEME_A_ cos (rvalue (x)))); 3944 case OP_COS: s_return (mk_real (SCHEME_A_ cos (rvalue (x))));
4042
4043 case OP_TAN:
4044 x = car (SCHEME_V->args);
4045 s_return (mk_real (SCHEME_A_ tan (rvalue (x)))); 3945 case OP_TAN: s_return (mk_real (SCHEME_A_ tan (rvalue (x))));
4046
4047 case OP_ASIN:
4048 x = car (SCHEME_V->args);
4049 s_return (mk_real (SCHEME_A_ asin (rvalue (x)))); 3946 case OP_ASIN: s_return (mk_real (SCHEME_A_ asin (rvalue (x))));
4050
4051 case OP_ACOS:
4052 x = car (SCHEME_V->args);
4053 s_return (mk_real (SCHEME_A_ acos (rvalue (x)))); 3947 case OP_ACOS: s_return (mk_real (SCHEME_A_ acos (rvalue (x))));
4054 3948
4055 case OP_ATAN: 3949 case OP_ATAN:
4056 x = car (SCHEME_V->args);
4057
4058 if (cdr (SCHEME_V->args) == NIL) 3950 if (cdr (args) == NIL)
4059 s_return (mk_real (SCHEME_A_ atan (rvalue (x)))); 3951 s_return (mk_real (SCHEME_A_ atan (rvalue (x))));
4060 else 3952 else
4061 { 3953 {
4062 pointer y = cadr (SCHEME_V->args); 3954 pointer y = cadr (args);
4063
4064 s_return (mk_real (SCHEME_A_ atan2 (rvalue (x), rvalue (y)))); 3955 s_return (mk_real (SCHEME_A_ atan2 (rvalue (x), rvalue (y))));
4065 } 3956 }
4066 3957
4067 case OP_SQRT: 3958 case OP_SQRT:
4068 x = car (SCHEME_V->args);
4069 s_return (mk_real (SCHEME_A_ sqrt (rvalue (x)))); 3959 s_return (mk_real (SCHEME_A_ sqrt (rvalue (x))));
4070 3960
4071 case OP_EXPT: 3961 case OP_EXPT:
4072 { 3962 {
4073 RVALUE result; 3963 RVALUE result;
4074 int real_result = 1; 3964 int real_result = 1;
4075 pointer y = cadr (SCHEME_V->args); 3965 pointer y = cadr (args);
4076
4077 x = car (SCHEME_V->args);
4078 3966
4079 if (num_is_integer (x) && num_is_integer (y)) 3967 if (num_is_integer (x) && num_is_integer (y))
4080 real_result = 0; 3968 real_result = 0;
4081 3969
4082 /* This 'if' is an R5RS compatibility fix. */ 3970 /* This 'if' is an R5RS compatibility fix. */
4083 /* NOTE: Remove this 'if' fix for R6RS. */ 3971 /* NOTE: Remove this 'if' fix for R6RS. */
4084 if (rvalue (x) == 0 && rvalue (y) < 0) 3972 if (rvalue (x) == 0 && rvalue (y) < 0)
4085 result = 0.0; 3973 result = 0;
4086 else 3974 else
4087 result = pow (rvalue (x), rvalue (y)); 3975 result = pow (rvalue (x), rvalue (y));
4088 3976
4089 /* Before returning integer result make sure we can. */ 3977 /* Before returning integer result make sure we can. */
4090 /* If the test fails, result is too big for integer. */ 3978 /* If the test fails, result is too big for integer. */
4091 if (!real_result) 3979 if (!real_result)
4092 { 3980 {
4093 long result_as_long = (long) result; 3981 long result_as_long = result;
4094 3982
4095 if (result != (RVALUE) result_as_long) 3983 if (result != (RVALUE) result_as_long)
4096 real_result = 1; 3984 real_result = 1;
4097 } 3985 }
4098 3986
… …
4100 s_return (mk_real (SCHEME_A_ result)); 3988 s_return (mk_real (SCHEME_A_ result));
4101 else 3989 else
4102 s_return (mk_integer (SCHEME_A_ result)); 3990 s_return (mk_integer (SCHEME_A_ result));
4103 } 3991 }
4104 3992
4105 case OP_FLOOR:
4106 x = car (SCHEME_V->args);
4107 s_return (mk_real (SCHEME_A_ floor (rvalue (x)))); 3993 case OP_FLOOR: s_return (mk_real (SCHEME_A_ floor (rvalue (x))));
4108
4109 case OP_CEILING:
4110 x = car (SCHEME_V->args);
4111 s_return (mk_real (SCHEME_A_ ceil (rvalue (x)))); 3994 case OP_CEILING: s_return (mk_real (SCHEME_A_ ceil (rvalue (x))));
4112 3995
4113 case OP_TRUNCATE: 3996 case OP_TRUNCATE:
4114 { 3997 {
4115 RVALUE rvalue_of_x; 3998 RVALUE rvalue_of_x;
4116 3999
4117 x = car (SCHEME_V->args);
4118 rvalue_of_x = rvalue (x); 4000 rvalue_of_x = rvalue (x);
4119 4001
4120 if (rvalue_of_x > 0) 4002 if (rvalue_of_x > 0)
4121 s_return (mk_real (SCHEME_A_ floor (rvalue_of_x))); 4003 s_return (mk_real (SCHEME_A_ floor (rvalue_of_x)));
4122 else 4004 else
4123 s_return (mk_real (SCHEME_A_ ceil (rvalue_of_x))); 4005 s_return (mk_real (SCHEME_A_ ceil (rvalue_of_x)));
4124 } 4006 }
4125 4007
4126 case OP_ROUND: 4008 case OP_ROUND:
4127 x = car (SCHEME_V->args);
4128
4129 if (num_is_integer (x)) 4009 if (num_is_integer (x))
4130 s_return (x); 4010 s_return (x);
4131 4011
4132 s_return (mk_real (SCHEME_A_ round_per_R5RS (rvalue (x)))); 4012 s_return (mk_real (SCHEME_A_ round_per_R5RS (rvalue (x))));
4133#endif 4013#endif
4134 4014
4135 case OP_ADD: /* + */ 4015 case OP_ADD: /* + */
4136 v = num_zero; 4016 v = num_zero;
4137 4017
4138 for (x = SCHEME_V->args; x != NIL; x = cdr (x)) 4018 for (x = args; x != NIL; x = cdr (x))
4139 v = num_add (v, nvalue (car (x))); 4019 v = num_op ('+', v, nvalue (car (x)));
4140 4020
4141 s_return (mk_number (SCHEME_A_ v)); 4021 s_return (mk_number (SCHEME_A_ v));
4142 4022
4143 case OP_MUL: /* * */ 4023 case OP_MUL: /* * */
4144 v = num_one; 4024 v = num_one;
4145 4025
4146 for (x = SCHEME_V->args; x != NIL; x = cdr (x)) 4026 for (x = args; x != NIL; x = cdr (x))
4147 v = num_mul (v, nvalue (car (x))); 4027 v = num_op ('+', v, nvalue (car (x)));
4148 4028
4149 s_return (mk_number (SCHEME_A_ v)); 4029 s_return (mk_number (SCHEME_A_ v));
4150 4030
4151 case OP_SUB: /* - */ 4031 case OP_SUB: /* - */
4152 if (cdr (SCHEME_V->args) == NIL) 4032 if (cdr (args) == NIL)
4153 { 4033 {
4154 x = SCHEME_V->args; 4034 x = args;
4155 v = num_zero; 4035 v = num_zero;
4156 } 4036 }
4157 else 4037 else
4158 { 4038 {
4159 x = cdr (SCHEME_V->args); 4039 x = cdr (args);
4160 v = nvalue (car (SCHEME_V->args)); 4040 v = nvalue (car (args));
4161 } 4041 }
4162 4042
4163 for (; x != NIL; x = cdr (x)) 4043 for (; x != NIL; x = cdr (x))
4164 v = num_sub (v, nvalue (car (x))); 4044 v = num_op ('+', v, nvalue (car (x)));
4165 4045
4166 s_return (mk_number (SCHEME_A_ v)); 4046 s_return (mk_number (SCHEME_A_ v));
4167 4047
4168 case OP_DIV: /* / */ 4048 case OP_DIV: /* / */
4169 if (cdr (SCHEME_V->args) == NIL) 4049 if (cdr (args) == NIL)
4170 { 4050 {
4171 x = SCHEME_V->args; 4051 x = args;
4172 v = num_one; 4052 v = num_one;
4173 } 4053 }
4174 else 4054 else
4175 { 4055 {
4176 x = cdr (SCHEME_V->args); 4056 x = cdr (args);
4177 v = nvalue (car (SCHEME_V->args)); 4057 v = nvalue (car (args));
4178 } 4058 }
4179 4059
4180 for (; x != NIL; x = cdr (x)) 4060 for (; x != NIL; x = cdr (x))
4181 { 4061 {
4182 if (!is_zero_rvalue (rvalue (car (x)))) 4062 if (!is_zero_rvalue (rvalue (car (x))))
… …
4186 } 4066 }
4187 4067
4188 s_return (mk_number (SCHEME_A_ v)); 4068 s_return (mk_number (SCHEME_A_ v));
4189 4069
4190 case OP_INTDIV: /* quotient */ 4070 case OP_INTDIV: /* quotient */
4191 if (cdr (SCHEME_V->args) == NIL) 4071 if (cdr (args) == NIL)
4192 { 4072 {
4193 x = SCHEME_V->args; 4073 x = args;
4194 v = num_one; 4074 v = num_one;
4195 } 4075 }
4196 else 4076 else
4197 { 4077 {
4198 x = cdr (SCHEME_V->args); 4078 x = cdr (args);
4199 v = nvalue (car (SCHEME_V->args)); 4079 v = nvalue (car (args));
4200 } 4080 }
4201 4081
4202 for (; x != NIL; x = cdr (x)) 4082 for (; x != NIL; x = cdr (x))
4203 { 4083 {
4204 if (ivalue (car (x)) != 0) 4084 if (ivalue (car (x)) != 0)
4205 v = num_intdiv (v, nvalue (car (x))); 4085 v = num_op ('/', v, nvalue (car (x)));
4206 else 4086 else
4207 Error_0 ("quotient: division by zero"); 4087 Error_0 ("quotient: division by zero");
4208 } 4088 }
4209 4089
4210 s_return (mk_number (SCHEME_A_ v)); 4090 s_return (mk_number (SCHEME_A_ v));
4211 4091
4212 case OP_REM: /* remainder */ 4092 case OP_REM: /* remainder */
4213 v = nvalue (car (SCHEME_V->args)); 4093 v = nvalue (x);
4214 4094
4215 if (ivalue (cadr (SCHEME_V->args)) != 0) 4095 if (ivalue (cadr (args)) != 0)
4216 v = num_rem (v, nvalue (cadr (SCHEME_V->args))); 4096 v = num_rem (v, nvalue (cadr (args)));
4217 else 4097 else
4218 Error_0 ("remainder: division by zero"); 4098 Error_0 ("remainder: division by zero");
4219 4099
4220 s_return (mk_number (SCHEME_A_ v)); 4100 s_return (mk_number (SCHEME_A_ v));
4221 4101
4222 case OP_MOD: /* modulo */ 4102 case OP_MOD: /* modulo */
4223 v = nvalue (car (SCHEME_V->args)); 4103 v = nvalue (x);
4224 4104
4225 if (ivalue (cadr (SCHEME_V->args)) != 0) 4105 if (ivalue (cadr (args)) != 0)
4226 v = num_mod (v, nvalue (cadr (SCHEME_V->args))); 4106 v = num_mod (v, nvalue (cadr (args)));
4227 else 4107 else
4228 Error_0 ("modulo: division by zero"); 4108 Error_0 ("modulo: division by zero");
4229 4109
4230 s_return (mk_number (SCHEME_A_ v)); 4110 s_return (mk_number (SCHEME_A_ v));
4231 4111
4232 case OP_CAR: /* car */ 4112 case OP_CAR: /* car */
4233 s_return (caar (SCHEME_V->args)); 4113 s_return (caar (args));
4234 4114
4235 case OP_CDR: /* cdr */ 4115 case OP_CDR: /* cdr */
4236 s_return (cdar (SCHEME_V->args)); 4116 s_return (cdar (args));
4237 4117
4238 case OP_CONS: /* cons */ 4118 case OP_CONS: /* cons */
4239 set_cdr (SCHEME_V->args, cadr (SCHEME_V->args)); 4119 set_cdr (args, cadr (args));
4240 s_return (SCHEME_V->args); 4120 s_return (args);
4241 4121
4242 case OP_SETCAR: /* set-car! */ 4122 case OP_SETCAR: /* set-car! */
4243 if (!is_immutable (car (SCHEME_V->args))) 4123 if (!is_immutable (x))
4244 { 4124 {
4245 set_car (car (SCHEME_V->args), cadr (SCHEME_V->args)); 4125 set_car (x, cadr (args));
4246 s_return (car (SCHEME_V->args)); 4126 s_return (car (args));
4247 } 4127 }
4248 else 4128 else
4249 Error_0 ("set-car!: unable to alter immutable pair"); 4129 Error_0 ("set-car!: unable to alter immutable pair");
4250 4130
4251 case OP_SETCDR: /* set-cdr! */ 4131 case OP_SETCDR: /* set-cdr! */
4252 if (!is_immutable (car (SCHEME_V->args))) 4132 if (!is_immutable (x))
4253 { 4133 {
4254 set_cdr (car (SCHEME_V->args), cadr (SCHEME_V->args)); 4134 set_cdr (x, cadr (args));
4255 s_return (car (SCHEME_V->args)); 4135 s_return (car (args));
4256 } 4136 }
4257 else 4137 else
4258 Error_0 ("set-cdr!: unable to alter immutable pair"); 4138 Error_0 ("set-cdr!: unable to alter immutable pair");
4259 4139
4260 case OP_CHAR2INT: /* char->integer */ 4140 case OP_CHAR2INT: /* char->integer */
4261 s_return (mk_integer (SCHEME_A_ ivalue (car (SCHEME_V->args)))); 4141 s_return (mk_integer (SCHEME_A_ ivalue (x)));
4262 4142
4263 case OP_INT2CHAR: /* integer->char */ 4143 case OP_INT2CHAR: /* integer->char */
4264 s_return (mk_character (SCHEME_A_ ivalue (car (SCHEME_V->args)))); 4144 s_return (mk_character (SCHEME_A_ ivalue (x)));
4265 4145
4266 case OP_CHARUPCASE: 4146 case OP_CHARUPCASE:
4267 { 4147 {
4268 unsigned char c = ivalue (car (SCHEME_V->args)); 4148 unsigned char c = ivalue (x);
4269 c = toupper (c); 4149 c = toupper (c);
4270 s_return (mk_character (SCHEME_A_ c)); 4150 s_return (mk_character (SCHEME_A_ c));
4271 } 4151 }
4272 4152
4273 case OP_CHARDNCASE: 4153 case OP_CHARDNCASE:
4274 { 4154 {
4275 unsigned char c = ivalue (car (SCHEME_V->args)); 4155 unsigned char c = ivalue (x);
4276 c = tolower (c); 4156 c = tolower (c);
4277 s_return (mk_character (SCHEME_A_ c)); 4157 s_return (mk_character (SCHEME_A_ c));
4278 } 4158 }
4279 4159
4280 case OP_STR2SYM: /* string->symbol */ 4160 case OP_STR2SYM: /* string->symbol */
4281 s_return (mk_symbol (SCHEME_A_ strvalue (car (SCHEME_V->args)))); 4161 s_return (mk_symbol (SCHEME_A_ strvalue (x)));
4282 4162
4283 case OP_STR2ATOM: /* string->atom */ 4163 case OP_STR2ATOM: /* string->atom */
4284 { 4164 {
4285 char *s = strvalue (car (SCHEME_V->args)); 4165 char *s = strvalue (x);
4286 long pf = 0; 4166 long pf = 0;
4287 4167
4288 if (cdr (SCHEME_V->args) != NIL) 4168 if (cdr (args) != NIL)
4289 { 4169 {
4290 /* we know cadr(SCHEME_V->args) is a natural number */ 4170 /* we know cadr(args) is a natural number */
4291 /* see if it is 2, 8, 10, or 16, or error */ 4171 /* see if it is 2, 8, 10, or 16, or error */
4292 pf = ivalue_unchecked (cadr (SCHEME_V->args)); 4172 pf = ivalue_unchecked (cadr (args));
4293 4173
4294 if (pf == 16 || pf == 10 || pf == 8 || pf == 2) 4174 if (pf == 16 || pf == 10 || pf == 8 || pf == 2)
4295 { 4175 {
4296 /* base is OK */ 4176 /* base is OK */
4297 } 4177 }
4298 else 4178 else
4299 pf = -1; 4179 pf = -1;
4300 } 4180 }
4301 4181
4302 if (pf < 0) 4182 if (pf < 0)
4303 Error_1 ("string->atom: bad base:", cadr (SCHEME_V->args)); 4183 Error_1 ("string->atom: bad base:", cadr (args));
4304 else if (*s == '#') /* no use of base! */ 4184 else if (*s == '#') /* no use of base! */
4305 s_return (mk_sharp_const (SCHEME_A_ s + 1)); 4185 s_return (mk_sharp_const (SCHEME_A_ s + 1));
4306 else 4186 else
4307 { 4187 {
4308 if (pf == 0 || pf == 10) 4188 if (pf == 0 || pf == 10)
… …
4319 } 4199 }
4320 } 4200 }
4321 } 4201 }
4322 4202
4323 case OP_SYM2STR: /* symbol->string */ 4203 case OP_SYM2STR: /* symbol->string */
4324 x = mk_string (SCHEME_A_ symname (car (SCHEME_V->args))); 4204 x = mk_string (SCHEME_A_ symname (x));
4325 setimmutable (x); 4205 setimmutable (x);
4326 s_return (x); 4206 s_return (x);
4327 4207
4328 case OP_ATOM2STR: /* atom->string */ 4208 case OP_ATOM2STR: /* atom->string */
4329 { 4209 {
4330 long pf = 0; 4210 long pf = 0;
4331 4211
4332 x = car (SCHEME_V->args);
4333
4334 if (cdr (SCHEME_V->args) != NIL) 4212 if (cdr (args) != NIL)
4335 { 4213 {
4336 /* we know cadr(SCHEME_V->args) is a natural number */ 4214 /* we know cadr(args) is a natural number */
4337 /* see if it is 2, 8, 10, or 16, or error */ 4215 /* see if it is 2, 8, 10, or 16, or error */
4338 pf = ivalue_unchecked (cadr (SCHEME_V->args)); 4216 pf = ivalue_unchecked (cadr (args));
4339 4217
4340 if (is_number (x) && (pf == 16 || pf == 10 || pf == 8 || pf == 2)) 4218 if (is_number (x) && (pf == 16 || pf == 10 || pf == 8 || pf == 2))
4341 { 4219 {
4342 /* base is OK */ 4220 /* base is OK */
4343 } 4221 }
4344 else 4222 else
4345 pf = -1; 4223 pf = -1;
4346 } 4224 }
4347 4225
4348 if (pf < 0) 4226 if (pf < 0)
4349 Error_1 ("atom->string: bad base:", cadr (SCHEME_V->args)); 4227 Error_1 ("atom->string: bad base:", cadr (args));
4350 else if (is_number (x) || is_character (x) || is_string (x) || is_symbol (x)) 4228 else if (is_number (x) || is_character (x) || is_string (x) || is_symbol (x))
4351 { 4229 {
4352 char *p; 4230 char *p;
4353 int len; 4231 int len;
4354 4232
… …
4362 case OP_MKSTRING: /* make-string */ 4240 case OP_MKSTRING: /* make-string */
4363 { 4241 {
4364 int fill = ' '; 4242 int fill = ' ';
4365 int len; 4243 int len;
4366 4244
4367 len = ivalue (car (SCHEME_V->args)); 4245 len = ivalue (x);
4368 4246
4369 if (cdr (SCHEME_V->args) != NIL) 4247 if (cdr (args) != NIL)
4370 fill = charvalue (cadr (SCHEME_V->args)); 4248 fill = charvalue (cadr (args));
4371 4249
4372 s_return (mk_empty_string (SCHEME_A_ len, (char) fill)); 4250 s_return (mk_empty_string (SCHEME_A_ len, fill));
4373 } 4251 }
4374 4252
4375 case OP_STRLEN: /* string-length */ 4253 case OP_STRLEN: /* string-length */
4376 s_return (mk_integer (SCHEME_A_ strlength (car (SCHEME_V->args)))); 4254 s_return (mk_integer (SCHEME_A_ strlength (x)));
4377 4255
4378 case OP_STRREF: /* string-ref */ 4256 case OP_STRREF: /* string-ref */
4379 { 4257 {
4380 char *str; 4258 char *str;
4381 int index; 4259 int index;
4382 4260
4383 str = strvalue (car (SCHEME_V->args)); 4261 str = strvalue (x);
4384 4262
4385 index = ivalue (cadr (SCHEME_V->args)); 4263 index = ivalue (cadr (args));
4386 4264
4387 if (index >= strlength (car (SCHEME_V->args))) 4265 if (index >= strlength (x))
4388 Error_1 ("string-ref: out of bounds:", cadr (SCHEME_V->args)); 4266 Error_1 ("string-ref: out of bounds:", cadr (args));
4389 4267
4390 s_return (mk_character (SCHEME_A_ ((unsigned char *) str)[index])); 4268 s_return (mk_character (SCHEME_A_ ((unsigned char *)str)[index]));
4391 } 4269 }
4392 4270
4393 case OP_STRSET: /* string-set! */ 4271 case OP_STRSET: /* string-set! */
4394 { 4272 {
4395 char *str; 4273 char *str;
4396 int index; 4274 int index;
4397 int c; 4275 int c;
4398 4276
4399 if (is_immutable (car (SCHEME_V->args))) 4277 if (is_immutable (x))
4400 Error_1 ("string-set!: unable to alter immutable string:", car (SCHEME_V->args)); 4278 Error_1 ("string-set!: unable to alter immutable string:", x);
4401 4279
4402 str = strvalue (car (SCHEME_V->args)); 4280 str = strvalue (x);
4403 4281
4404 index = ivalue (cadr (SCHEME_V->args)); 4282 index = ivalue (cadr (args));
4405 4283
4406 if (index >= strlength (car (SCHEME_V->args))) 4284 if (index >= strlength (x))
4407 Error_1 ("string-set!: out of bounds:", cadr (SCHEME_V->args)); 4285 Error_1 ("string-set!: out of bounds:", cadr (args));
4408 4286
4409 c = charvalue (caddr (SCHEME_V->args)); 4287 c = charvalue (caddr (args));
4410 4288
4411 str[index] = (char) c; 4289 str[index] = c;
4412 s_return (car (SCHEME_V->args)); 4290 s_return (car (args));
4413 } 4291 }
4414 4292
4415 case OP_STRAPPEND: /* string-append */ 4293 case OP_STRAPPEND: /* string-append */
4416 { 4294 {
4417 /* in 1.29 string-append was in Scheme in init.scm but was too slow */ 4295 /* in 1.29 string-append was in Scheme in init.scm but was too slow */
4418 int len = 0; 4296 int len = 0;
4419 pointer newstr; 4297 pointer newstr;
4420 char *pos; 4298 char *pos;
4421 4299
4422 /* compute needed length for new string */ 4300 /* compute needed length for new string */
4423 for (x = SCHEME_V->args; x != NIL; x = cdr (x)) 4301 for (x = args; x != NIL; x = cdr (x))
4424 len += strlength (car (x)); 4302 len += strlength (car (x));
4425 4303
4426 newstr = mk_empty_string (SCHEME_A_ len, ' '); 4304 newstr = mk_empty_string (SCHEME_A_ len, ' ');
4427 4305
4428 /* store the contents of the argument strings into the new string */ 4306 /* store the contents of the argument strings into the new string */
4429 for (pos = strvalue (newstr), x = SCHEME_V->args; x != NIL; pos += strlength (car (x)), x = cdr (x)) 4307 for (pos = strvalue (newstr), x = args; x != NIL; pos += strlength (car (x)), x = cdr (x))
4430 memcpy (pos, strvalue (car (x)), strlength (car (x))); 4308 memcpy (pos, strvalue (car (x)), strlength (car (x)));
4431 4309
4432 s_return (newstr); 4310 s_return (newstr);
4433 } 4311 }
4434 4312
… …
4437 char *str; 4315 char *str;
4438 int index0; 4316 int index0;
4439 int index1; 4317 int index1;
4440 int len; 4318 int len;
4441 4319
4442 str = strvalue (car (SCHEME_V->args)); 4320 str = strvalue (x);
4443 4321
4444 index0 = ivalue (cadr (SCHEME_V->args)); 4322 index0 = ivalue (cadr (args));
4445 4323
4446 if (index0 > strlength (car (SCHEME_V->args))) 4324 if (index0 > strlength (x))
4447 Error_1 ("substring: start out of bounds:", cadr (SCHEME_V->args)); 4325 Error_1 ("substring: start out of bounds:", cadr (args));
4448 4326
4449 if (cddr (SCHEME_V->args) != NIL) 4327 if (cddr (args) != NIL)
4450 { 4328 {
4451 index1 = ivalue (caddr (SCHEME_V->args)); 4329 index1 = ivalue (caddr (args));
4452 4330
4453 if (index1 > strlength (car (SCHEME_V->args)) || index1 < index0) 4331 if (index1 > strlength (x) || index1 < index0)
4454 Error_1 ("substring: end out of bounds:", caddr (SCHEME_V->args)); 4332 Error_1 ("substring: end out of bounds:", caddr (args));
4455 } 4333 }
4456 else 4334 else
4457 index1 = strlength (car (SCHEME_V->args)); 4335 index1 = strlength (x);
4458 4336
4459 len = index1 - index0; 4337 len = index1 - index0;
4460 x = mk_empty_string (SCHEME_A_ len, ' '); 4338 x = mk_empty_string (SCHEME_A_ len, ' ');
4461 memcpy (strvalue (x), str + index0, len); 4339 memcpy (strvalue (x), str + index0, len);
4462 strvalue (x)[len] = 0; 4340 strvalue (x)[len] = 0;
… …
4466 4344
4467 case OP_VECTOR: /* vector */ 4345 case OP_VECTOR: /* vector */
4468 { 4346 {
4469 int i; 4347 int i;
4470 pointer vec; 4348 pointer vec;
4471 int len = list_length (SCHEME_A_ SCHEME_V->args); 4349 int len = list_length (SCHEME_A_ args);
4472 4350
4473 if (len < 0) 4351 if (len < 0)
4474 Error_1 ("vector: not a proper list:", SCHEME_V->args); 4352 Error_1 ("vector: not a proper list:", args);
4475 4353
4476 vec = mk_vector (SCHEME_A_ len); 4354 vec = mk_vector (SCHEME_A_ len);
4477 4355
4478#if USE_ERROR_CHECKING 4356#if USE_ERROR_CHECKING
4479 if (SCHEME_V->no_memory) 4357 if (SCHEME_V->no_memory)
4480 s_return (S_SINK); 4358 s_return (S_SINK);
4481#endif 4359#endif
4482 4360
4483 for (x = SCHEME_V->args, i = 0; is_pair (x); x = cdr (x), i++) 4361 for (x = args, i = 0; is_pair (x); x = cdr (x), i++)
4484 set_vector_elem (vec, i, car (x)); 4362 set_vector_elem (vec, i, car (x));
4485 4363
4486 s_return (vec); 4364 s_return (vec);
4487 } 4365 }
4488 4366
… …
4490 { 4368 {
4491 pointer fill = NIL; 4369 pointer fill = NIL;
4492 int len; 4370 int len;
4493 pointer vec; 4371 pointer vec;
4494 4372
4495 len = ivalue (car (SCHEME_V->args)); 4373 len = ivalue (x);
4496 4374
4497 if (cdr (SCHEME_V->args) != NIL) 4375 if (cdr (args) != NIL)
4498 fill = cadr (SCHEME_V->args); 4376 fill = cadr (args);
4499 4377
4500 vec = mk_vector (SCHEME_A_ len); 4378 vec = mk_vector (SCHEME_A_ len);
4501 4379
4502#if USE_ERROR_CHECKING 4380#if USE_ERROR_CHECKING
4503 if (SCHEME_V->no_memory) 4381 if (SCHEME_V->no_memory)
… …
4509 4387
4510 s_return (vec); 4388 s_return (vec);
4511 } 4389 }
4512 4390
4513 case OP_VECLEN: /* vector-length */ 4391 case OP_VECLEN: /* vector-length */
4514 s_return (mk_integer (SCHEME_A_ veclength (car (SCHEME_V->args)))); 4392 s_return (mk_integer (SCHEME_A_ veclength (x)));
4515 4393
4516 case OP_VECREF: /* vector-ref */ 4394 case OP_VECREF: /* vector-ref */
4517 { 4395 {
4518 int index; 4396 int index;
4519 4397
4520 index = ivalue (cadr (SCHEME_V->args)); 4398 index = ivalue (cadr (args));
4521 4399
4522 if (index >= veclength (car (SCHEME_V->args)) && USE_ERROR_CHECKING) 4400 if (index >= veclength (car (args)) && USE_ERROR_CHECKING)
4523 Error_1 ("vector-ref: out of bounds:", cadr (SCHEME_V->args)); 4401 Error_1 ("vector-ref: out of bounds:", cadr (args));
4524 4402
4525 s_return (vector_elem (car (SCHEME_V->args), index)); 4403 s_return (vector_elem (x, index));
4526 } 4404 }
4527 4405
4528 case OP_VECSET: /* vector-set! */ 4406 case OP_VECSET: /* vector-set! */
4529 { 4407 {
4530 int index; 4408 int index;
4531 4409
4532 if (is_immutable (car (SCHEME_V->args))) 4410 if (is_immutable (x))
4533 Error_1 ("vector-set!: unable to alter immutable vector:", car (SCHEME_V->args)); 4411 Error_1 ("vector-set!: unable to alter immutable vector:", x);
4534 4412
4535 index = ivalue (cadr (SCHEME_V->args)); 4413 index = ivalue (cadr (args));
4536 4414
4537 if (index >= veclength (car (SCHEME_V->args)) && USE_ERROR_CHECKING) 4415 if (index >= veclength (car (args)) && USE_ERROR_CHECKING)
4538 Error_1 ("vector-set!: out of bounds:", cadr (SCHEME_V->args)); 4416 Error_1 ("vector-set!: out of bounds:", cadr (args));
4539 4417
4540 set_vector_elem (car (SCHEME_V->args), index, caddr (SCHEME_V->args)); 4418 set_vector_elem (x, index, caddr (args));
4541 s_return (car (SCHEME_V->args)); 4419 s_return (x);
4542 } 4420 }
4543 } 4421 }
4544 4422
4545 return S_T; 4423 return S_T;
4546} 4424}
… …
4598 } 4476 }
4599 } 4477 }
4600} 4478}
4601 4479
4602static pointer 4480static pointer
4481opexe_r (SCHEME_P_ enum scheme_opcodes op)
4482{
4483 pointer x = SCHEME_V->args;
4484
4485 for (;;)
4486 {
4487 num v = nvalue (car (x));
4488 x = cdr (x);
4489
4490 if (x == NIL)
4491 break;
4492
4493 int r = num_cmp (v, nvalue (car (x)));
4494
4495 switch (op)
4496 {
4497 case OP_NUMEQ: r = r == 0; break;
4498 case OP_LESS: r = r < 0; break;
4499 case OP_GRE: r = r > 0; break;
4500 case OP_LEQ: r = r <= 0; break;
4501 case OP_GEQ: r = r >= 0; break;
4502 }
4503
4504 if (!r)
4505 s_return (S_F);
4506 }
4507
4508 s_return (S_T);
4509}
4510
4511static pointer
4603opexe_3 (SCHEME_P_ enum scheme_opcodes op) 4512opexe_3 (SCHEME_P_ enum scheme_opcodes op)
4604{ 4513{
4605 pointer x; 4514 pointer args = SCHEME_V->args;
4606 num v; 4515 pointer a = car (args);
4607 int (*comp_func) (num, num); 4516 pointer d = cdr (args);
4517 int r;
4608 4518
4609 switch (op) 4519 switch (op)
4610 { 4520 {
4611 case OP_NOT: /* not */ 4521 case OP_NOT: /* not */ r = is_false (a) ; break;
4612 s_retbool (is_false (car (SCHEME_V->args))); 4522 case OP_BOOLP: /* boolean? */ r = a == S_F || a == S_T; break;
4523 case OP_EOFOBJP: /* eof-object? */ r = a == S_EOF ; break;
4524 case OP_NULLP: /* null? */ r = a == NIL ; break;
4525 case OP_SYMBOLP: /* symbol? */ r = is_symbol (a) ; break;
4526 case OP_NUMBERP: /* number? */ r = is_number (a) ; break;
4527 case OP_STRINGP: /* string? */ r = is_string (a) ; break;
4528 case OP_INTEGERP: /* integer? */ r = is_integer (a) ; break;
4529 case OP_REALP: /* real? */ r = is_number (a) ; break; /* all numbers are real */
4530 case OP_CHARP: /* char? */ r = is_character (a) ; break;
4613 4531
4614 case OP_BOOLP: /* boolean? */
4615 s_retbool (car (SCHEME_V->args) == S_F || car (SCHEME_V->args) == S_T);
4616
4617 case OP_EOFOBJP: /* boolean? */
4618 s_retbool (car (SCHEME_V->args) == S_EOF);
4619
4620 case OP_NULLP: /* null? */
4621 s_retbool (car (SCHEME_V->args) == NIL);
4622
4623 case OP_NUMEQ: /* = */
4624 case OP_LESS: /* < */
4625 case OP_GRE: /* > */
4626 case OP_LEQ: /* <= */
4627 case OP_GEQ: /* >= */
4628 switch (op)
4629 {
4630 case OP_NUMEQ:
4631 comp_func = num_eq;
4632 break;
4633
4634 case OP_LESS:
4635 comp_func = num_lt;
4636 break;
4637
4638 case OP_GRE:
4639 comp_func = num_gt;
4640 break;
4641
4642 case OP_LEQ:
4643 comp_func = num_le;
4644 break;
4645
4646 case OP_GEQ:
4647 comp_func = num_ge;
4648 break;
4649 }
4650
4651 x = SCHEME_V->args;
4652 v = nvalue (car (x));
4653 x = cdr (x);
4654
4655 for (; x != NIL; x = cdr (x))
4656 {
4657 if (!comp_func (v, nvalue (car (x))))
4658 s_retbool (0);
4659
4660 v = nvalue (car (x));
4661 }
4662
4663 s_retbool (1);
4664
4665 case OP_SYMBOLP: /* symbol? */
4666 s_retbool (is_symbol (car (SCHEME_V->args)));
4667
4668 case OP_NUMBERP: /* number? */
4669 s_retbool (is_number (car (SCHEME_V->args)));
4670
4671 case OP_STRINGP: /* string? */
4672 s_retbool (is_string (car (SCHEME_V->args)));
4673
4674 case OP_INTEGERP: /* integer? */
4675 s_retbool (is_integer (car (SCHEME_V->args)));
4676
4677 case OP_REALP: /* real? */
4678 s_retbool (is_number (car (SCHEME_V->args))); /* All numbers are real */
4679
4680 case OP_CHARP: /* char? */
4681 s_retbool (is_character (car (SCHEME_V->args)));
4682#if USE_CHAR_CLASSIFIERS 4532#if USE_CHAR_CLASSIFIERS
4683
4684 case OP_CHARAP: /* char-alphabetic? */ 4533 case OP_CHARAP: /* char-alphabetic? */ r = Cisalpha (ivalue (a)); break;
4685 s_retbool (Cisalpha (ivalue (car (SCHEME_V->args)))); 4534 case OP_CHARNP: /* char-numeric? */ r = Cisdigit (ivalue (a)); break;
4686
4687 case OP_CHARNP: /* char-numeric? */
4688 s_retbool (Cisdigit (ivalue (car (SCHEME_V->args))));
4689
4690 case OP_CHARWP: /* char-whitespace? */ 4535 case OP_CHARWP: /* char-whitespace? */ r = Cisspace (ivalue (a)); break;
4691 s_retbool (Cisspace (ivalue (car (SCHEME_V->args))));
4692
4693 case OP_CHARUP: /* char-upper-case? */ 4536 case OP_CHARUP: /* char-upper-case? */ r = Cisupper (ivalue (a)); break;
4694 s_retbool (Cisupper (ivalue (car (SCHEME_V->args))));
4695
4696 case OP_CHARLP: /* char-lower-case? */ 4537 case OP_CHARLP: /* char-lower-case? */ r = Cislower (ivalue (a)); break;
4697 s_retbool (Cislower (ivalue (car (SCHEME_V->args))));
4698#endif 4538#endif
4539
4699#if USE_PORTS 4540#if USE_PORTS
4700 4541 case OP_PORTP: /* port? */ r = is_port (a) ; break;
4701 case OP_PORTP: /* port? */
4702 s_retbool (is_port (car (SCHEME_V->args)));
4703
4704 case OP_INPORTP: /* input-port? */ 4542 case OP_INPORTP: /* input-port? */ r = is_inport (a) ; break;
4705 s_retbool (is_inport (car (SCHEME_V->args)));
4706
4707 case OP_OUTPORTP: /* output-port? */ 4543 case OP_OUTPORTP: /* output-port? */ r = is_outport (a); break;
4708 s_retbool (is_outport (car (SCHEME_V->args)));
4709#endif 4544#endif
4710 4545
4711 case OP_PROCP: /* procedure? */ 4546 case OP_PROCP: /* procedure? */
4712 4547
4713 /*-- 4548 /*--
4714 * continuation should be procedure by the example 4549 * continuation should be procedure by the example
4715 * (call-with-current-continuation procedure?) ==> #t 4550 * (call-with-current-continuation procedure?) ==> #t
4716 * in R^3 report sec. 6.9 4551 * in R^3 report sec. 6.9
4717 */ 4552 */
4718 s_retbool (is_proc (car (SCHEME_V->args)) || is_closure (car (SCHEME_V->args)) 4553 r = is_proc (a) || is_closure (a) || is_continuation (a) || is_foreign (a);
4719 || is_continuation (car (SCHEME_V->args)) || is_foreign (car (SCHEME_V->args))); 4554 break;
4720 4555
4721 case OP_PAIRP: /* pair? */ 4556 case OP_PAIRP: /* pair? */ r = is_pair (a) ; break;
4722 s_retbool (is_pair (car (SCHEME_V->args))); 4557 case OP_LISTP: /* list? */ r = list_length (SCHEME_A_ a) >= 0; break;
4723 4558 case OP_ENVP: /* environment? */ r = is_environment (a) ; break;
4724 case OP_LISTP: /* list? */ 4559 case OP_VECTORP: /* vector? */ r = is_vector (a) ; break;
4725 s_retbool (list_length (SCHEME_A_ car (SCHEME_V->args)) >= 0); 4560 case OP_EQ: /* eq? */ r = a == cadr (args) ; break;
4726 4561 case OP_EQV: /* eqv? */ r = eqv (a, cadr (args)) ; break;
4727 case OP_ENVP: /* environment? */
4728 s_retbool (is_environment (car (SCHEME_V->args)));
4729
4730 case OP_VECTORP: /* vector? */
4731 s_retbool (is_vector (car (SCHEME_V->args)));
4732
4733 case OP_EQ: /* eq? */
4734 s_retbool (car (SCHEME_V->args) == cadr (SCHEME_V->args));
4735
4736 case OP_EQV: /* eqv? */
4737 s_retbool (eqv (car (SCHEME_V->args), cadr (SCHEME_V->args)));
4738 } 4562 }
4739 4563
4740 return S_T; 4564 s_retbool (r);
4741} 4565}
4742 4566
4743static pointer 4567static pointer
4744opexe_4 (SCHEME_P_ enum scheme_opcodes op) 4568opexe_4 (SCHEME_P_ enum scheme_opcodes op)
4745{ 4569{
4570 pointer args = SCHEME_V->args;
4571 pointer a = car (args);
4746 pointer x, y; 4572 pointer x, y;
4747 4573
4748 switch (op) 4574 switch (op)
4749 { 4575 {
4750 case OP_FORCE: /* force */ 4576 case OP_FORCE: /* force */
4751 SCHEME_V->code = car (SCHEME_V->args); 4577 SCHEME_V->code = a;
4752 4578
4753 if (is_promise (SCHEME_V->code)) 4579 if (is_promise (SCHEME_V->code))
4754 { 4580 {
4755 /* Should change type to closure here */ 4581 /* Should change type to closure here */
4756 s_save (SCHEME_A_ OP_SAVE_FORCED, NIL, SCHEME_V->code); 4582 s_save (SCHEME_A_ OP_SAVE_FORCED, NIL, SCHEME_V->code);
… …
4777 s_save (SCHEME_A_ OP_SET_OUTPORT, x, NIL); 4603 s_save (SCHEME_A_ OP_SET_OUTPORT, x, NIL);
4778 SCHEME_V->outport = cadr (SCHEME_V->args); 4604 SCHEME_V->outport = cadr (SCHEME_V->args);
4779 } 4605 }
4780 } 4606 }
4781 4607
4782 SCHEME_V->args = car (SCHEME_V->args); 4608 SCHEME_V->args = a;
4783 4609
4784 if (op == OP_WRITE) 4610 if (op == OP_WRITE)
4785 SCHEME_V->print_flag = 1; 4611 SCHEME_V->print_flag = 1;
4786 else 4612 else
4787 SCHEME_V->print_flag = 0; 4613 SCHEME_V->print_flag = 0;
4788 4614
4789 s_goto (OP_P0LIST); 4615 s_goto (OP_P0LIST);
4790 4616
4791 case OP_NEWLINE: /* newline */ 4617 case OP_NEWLINE: /* newline */
4792 if (is_pair (SCHEME_V->args)) 4618 if (is_pair (args))
4793 { 4619 {
4794 if (car (SCHEME_V->args) != SCHEME_V->outport) 4620 if (a != SCHEME_V->outport)
4795 { 4621 {
4796 x = cons (SCHEME_V->outport, NIL); 4622 x = cons (SCHEME_V->outport, NIL);
4797 s_save (SCHEME_A_ OP_SET_OUTPORT, x, NIL); 4623 s_save (SCHEME_A_ OP_SET_OUTPORT, x, NIL);
4798 SCHEME_V->outport = car (SCHEME_V->args); 4624 SCHEME_V->outport = a;
4799 } 4625 }
4800 } 4626 }
4801 4627
4802 putstr (SCHEME_A_ "\n"); 4628 putstr (SCHEME_A_ "\n");
4803 s_return (S_T); 4629 s_return (S_T);
4804#endif 4630#endif
4805 4631
4806 case OP_ERR0: /* error */ 4632 case OP_ERR0: /* error */
4807 SCHEME_V->retcode = -1; 4633 SCHEME_V->retcode = -1;
4808 4634
4809 if (!is_string (car (SCHEME_V->args))) 4635 if (!is_string (a))
4810 { 4636 {
4811 SCHEME_V->args = cons (mk_string (SCHEME_A_ " -- "), SCHEME_V->args); 4637 args = cons (mk_string (SCHEME_A_ " -- "), args);
4812 setimmutable (car (SCHEME_V->args)); 4638 setimmutable (car (args));
4813 } 4639 }
4814 4640
4815 putstr (SCHEME_A_ "Error: "); 4641 putstr (SCHEME_A_ "Error: ");
4816 putstr (SCHEME_A_ strvalue (car (SCHEME_V->args))); 4642 putstr (SCHEME_A_ strvalue (car (args)));
4817 SCHEME_V->args = cdr (SCHEME_V->args); 4643 SCHEME_V->args = cdr (args);
4818 s_goto (OP_ERR1); 4644 s_goto (OP_ERR1);
4819 4645
4820 case OP_ERR1: /* error */ 4646 case OP_ERR1: /* error */
4821 putstr (SCHEME_A_ " "); 4647 putstr (SCHEME_A_ " ");
4822 4648
4823 if (SCHEME_V->args != NIL) 4649 if (args != NIL)
4824 { 4650 {
4825 s_save (SCHEME_A_ OP_ERR1, cdr (SCHEME_V->args), NIL); 4651 s_save (SCHEME_A_ OP_ERR1, cdr (args), NIL);
4826 SCHEME_V->args = car (SCHEME_V->args); 4652 SCHEME_V->args = a;
4827 SCHEME_V->print_flag = 1; 4653 SCHEME_V->print_flag = 1;
4828 s_goto (OP_P0LIST); 4654 s_goto (OP_P0LIST);
4829 } 4655 }
4830 else 4656 else
4831 { 4657 {
… …
4836 else 4662 else
4837 return NIL; 4663 return NIL;
4838 } 4664 }
4839 4665
4840 case OP_REVERSE: /* reverse */ 4666 case OP_REVERSE: /* reverse */
4841 s_return (reverse (SCHEME_A_ car (SCHEME_V->args))); 4667 s_return (reverse (SCHEME_A_ a));
4842 4668
4843 case OP_LIST_STAR: /* list* */ 4669 case OP_LIST_STAR: /* list* */
4844 s_return (list_star (SCHEME_A_ SCHEME_V->args)); 4670 s_return (list_star (SCHEME_A_ SCHEME_V->args));
4845 4671
4846 case OP_APPEND: /* append */ 4672 case OP_APPEND: /* append */
4847 x = NIL; 4673 x = NIL;
4848 y = SCHEME_V->args; 4674 y = args;
4849 4675
4850 if (y == x) 4676 if (y == x)
4851 s_return (x); 4677 s_return (x);
4852 4678
4853 /* cdr() in the while condition is not a typo. If car() */ 4679 /* cdr() in the while condition is not a typo. If car() */
… …
4864 s_return (reverse_in_place (SCHEME_A_ car (y), x)); 4690 s_return (reverse_in_place (SCHEME_A_ car (y), x));
4865 4691
4866#if USE_PLIST 4692#if USE_PLIST
4867 4693
4868 case OP_PUT: /* put */ 4694 case OP_PUT: /* put */
4869 if (!hasprop (car (SCHEME_V->args)) || !hasprop (cadr (SCHEME_V->args))) 4695 if (!hasprop (a) || !hasprop (cadr (args)))
4870 Error_0 ("illegal use of put"); 4696 Error_0 ("illegal use of put");
4871 4697
4872 for (x = symprop (car (SCHEME_V->args)), y = cadr (SCHEME_V->args); x != NIL; x = cdr (x)) 4698 for (x = symprop (a), y = cadr (args); x != NIL; x = cdr (x))
4873 { 4699 {
4874 if (caar (x) == y) 4700 if (caar (x) == y)
4875 break; 4701 break;
4876 } 4702 }
4877 4703
4878 if (x != NIL) 4704 if (x != NIL)
4879 cdar (x) = caddr (SCHEME_V->args); 4705 cdar (x) = caddr (args);
4880 else 4706 else
4881 symprop (car (SCHEME_V->args)) = cons (cons (y, caddr (SCHEME_V->args)), symprop (car (SCHEME_V->args))); 4707 symprop (a) = cons (cons (y, caddr (args)), symprop (a));
4882 4708
4883 s_return (S_T); 4709 s_return (S_T);
4884 4710
4885 case OP_GET: /* get */ 4711 case OP_GET: /* get */
4886 if (!hasprop (car (SCHEME_V->args)) || !hasprop (cadr (SCHEME_V->args))) 4712 if (!hasprop (a) || !hasprop (cadr (args)))
4887 Error_0 ("illegal use of get"); 4713 Error_0 ("illegal use of get");
4888 4714
4889 for (x = symprop (car (SCHEME_V->args)), y = cadr (SCHEME_V->args); x != NIL; x = cdr (x)) 4715 for (x = symprop (a), y = cadr (args); x != NIL; x = cdr (x))
4890 if (caar (x) == y) 4716 if (caar (x) == y)
4891 break; 4717 break;
4892 4718
4893 if (x != NIL) 4719 if (x != NIL)
4894 s_return (cdar (x)); 4720 s_return (cdar (x));
… …
4896 s_return (NIL); 4722 s_return (NIL);
4897 4723
4898#endif /* USE_PLIST */ 4724#endif /* USE_PLIST */
4899 4725
4900 case OP_QUIT: /* quit */ 4726 case OP_QUIT: /* quit */
4901 if (is_pair (SCHEME_V->args)) 4727 if (is_pair (args))
4902 SCHEME_V->retcode = ivalue (car (SCHEME_V->args)); 4728 SCHEME_V->retcode = ivalue (a);
4903 4729
4904 return NIL; 4730 return NIL;
4905 4731
4906 case OP_GC: /* gc */ 4732 case OP_GC: /* gc */
4907 gc (SCHEME_A_ NIL, NIL); 4733 gc (SCHEME_A_ NIL, NIL);
… …
4909 4735
4910 case OP_GCVERB: /* gc-verbose */ 4736 case OP_GCVERB: /* gc-verbose */
4911 { 4737 {
4912 int was = SCHEME_V->gc_verbose; 4738 int was = SCHEME_V->gc_verbose;
4913 4739
4914 SCHEME_V->gc_verbose = (car (SCHEME_V->args) != S_F); 4740 SCHEME_V->gc_verbose = (a != S_F);
4915 s_retbool (was); 4741 s_retbool (was);
4916 } 4742 }
4917 4743
4918 case OP_NEWSEGMENT: /* new-segment */ 4744 case OP_NEWSEGMENT: /* new-segment */
4919 if (!is_pair (SCHEME_V->args) || !is_number (car (SCHEME_V->args))) 4745 if (!is_pair (args) || !is_number (a))
4920 Error_0 ("new-segment: argument must be a number"); 4746 Error_0 ("new-segment: argument must be a number");
4921 4747
4922 alloc_cellseg (SCHEME_A_ (int)ivalue (car (SCHEME_V->args))); 4748 alloc_cellseg (SCHEME_A_ (int)ivalue (a));
4923 4749
4924 s_return (S_T); 4750 s_return (S_T);
4925 4751
4926 case OP_OBLIST: /* oblist */ 4752 case OP_OBLIST: /* oblist */
4927 s_return (oblist_all_symbols (SCHEME_A)); 4753 s_return (oblist_all_symbols (SCHEME_A));
… …
4954 case OP_OPEN_INOUTFILE: 4780 case OP_OPEN_INOUTFILE:
4955 prop = port_input | port_output; 4781 prop = port_input | port_output;
4956 break; 4782 break;
4957 } 4783 }
4958 4784
4959 p = port_from_filename (SCHEME_A_ strvalue (car (SCHEME_V->args)), prop); 4785 p = port_from_filename (SCHEME_A_ strvalue (a), prop);
4960 4786
4961 if (p == NIL) 4787 if (p == NIL)
4962 s_return (S_F); 4788 s_return (S_F);
4963 4789
4964 s_return (p); 4790 s_return (p);
… …
4981 case OP_OPEN_INOUTSTRING: 4807 case OP_OPEN_INOUTSTRING:
4982 prop = port_input | port_output; 4808 prop = port_input | port_output;
4983 break; 4809 break;
4984 } 4810 }
4985 4811
4986 p = port_from_string (SCHEME_A_ strvalue (car (SCHEME_V->args)), 4812 p = port_from_string (SCHEME_A_ strvalue (a),
4987 strvalue (car (SCHEME_V->args)) + strlength (car (SCHEME_V->args)), prop); 4813 strvalue (a) + strlength (a), prop);
4988 4814
4989 if (p == NIL) 4815 if (p == NIL)
4990 s_return (S_F); 4816 s_return (S_F);
4991 4817
4992 s_return (p); 4818 s_return (p);
… …
4994 4820
4995 case OP_OPEN_OUTSTRING: /* open-output-string */ 4821 case OP_OPEN_OUTSTRING: /* open-output-string */
4996 { 4822 {
4997 pointer p; 4823 pointer p;
4998 4824
4999 if (car (SCHEME_V->args) == NIL) 4825 if (a == NIL)
5000 { 4826 {
5001 p = port_from_scratch (SCHEME_A); 4827 p = port_from_scratch (SCHEME_A);
5002 4828
5003 if (p == NIL) 4829 if (p == NIL)
5004 s_return (S_F); 4830 s_return (S_F);
5005 } 4831 }
5006 else 4832 else
5007 { 4833 {
5008 p = port_from_string (SCHEME_A_ strvalue (car (SCHEME_V->args)), 4834 p = port_from_string (SCHEME_A_ strvalue (a),
5009 strvalue (car (SCHEME_V->args)) + strlength (car (SCHEME_V->args)), port_output); 4835 strvalue (a) + strlength (a), port_output);
5010 4836
5011 if (p == NIL) 4837 if (p == NIL)
5012 s_return (S_F); 4838 s_return (S_F);
5013 } 4839 }
5014 4840
… …
5017 4843
5018 case OP_GET_OUTSTRING: /* get-output-string */ 4844 case OP_GET_OUTSTRING: /* get-output-string */
5019 { 4845 {
5020 port *p; 4846 port *p;
5021 4847
5022 if ((p = car (SCHEME_V->args)->object.port)->kind & port_string) 4848 if ((p = a->object.port)->kind & port_string)
5023 { 4849 {
5024 off_t size; 4850 off_t size;
5025 char *str; 4851 char *str;
5026 4852
5027 size = p->rep.string.curr - p->rep.string.start + 1; 4853 size = p->rep.string.curr - p->rep.string.start + 1;
… …
5043 } 4869 }
5044 4870
5045# endif 4871# endif
5046 4872
5047 case OP_CLOSE_INPORT: /* close-input-port */ 4873 case OP_CLOSE_INPORT: /* close-input-port */
5048 port_close (SCHEME_A_ car (SCHEME_V->args), port_input); 4874 port_close (SCHEME_A_ a, port_input);
5049 s_return (S_T); 4875 s_return (S_T);
5050 4876
5051 case OP_CLOSE_OUTPORT: /* close-output-port */ 4877 case OP_CLOSE_OUTPORT: /* close-output-port */
5052 port_close (SCHEME_A_ car (SCHEME_V->args), port_output); 4878 port_close (SCHEME_A_ a, port_output);
5053 s_return (S_T); 4879 s_return (S_T);
5054#endif 4880#endif
5055 4881
5056 case OP_INT_ENV: /* interaction-environment */ 4882 case OP_INT_ENV: /* interaction-environment */
5057 s_return (SCHEME_V->global_env); 4883 s_return (SCHEME_V->global_env);
… …
5059 case OP_CURR_ENV: /* current-environment */ 4885 case OP_CURR_ENV: /* current-environment */
5060 s_return (SCHEME_V->envir); 4886 s_return (SCHEME_V->envir);
5061 4887
5062 } 4888 }
5063 4889
5064 return S_T; 4890 abort ();
5065} 4891}
5066 4892
5067static pointer 4893static pointer
5068opexe_5 (SCHEME_P_ enum scheme_opcodes op) 4894opexe_5 (SCHEME_P_ enum scheme_opcodes op)
5069{ 4895{
4896 pointer args = SCHEME_V->args;
5070 pointer x; 4897 pointer x;
5071 4898
5072 if (SCHEME_V->nesting != 0) 4899 if (SCHEME_V->nesting != 0)
5073 { 4900 {
5074 int n = SCHEME_V->nesting; 4901 int n = SCHEME_V->nesting;
… …
5081 switch (op) 4908 switch (op)
5082 { 4909 {
5083 /* ========== reading part ========== */ 4910 /* ========== reading part ========== */
5084#if USE_PORTS 4911#if USE_PORTS
5085 case OP_READ: 4912 case OP_READ:
5086 if (!is_pair (SCHEME_V->args)) 4913 if (!is_pair (args))
5087 s_goto (OP_READ_INTERNAL); 4914 s_goto (OP_READ_INTERNAL);
5088 4915
5089 if (!is_inport (car (SCHEME_V->args))) 4916 if (!is_inport (car (args)))
5090 Error_1 ("read: not an input port:", car (SCHEME_V->args)); 4917 Error_1 ("read: not an input port:", car (args));
5091 4918
5092 if (car (SCHEME_V->args) == SCHEME_V->inport) 4919 if (car (args) == SCHEME_V->inport)
5093 s_goto (OP_READ_INTERNAL); 4920 s_goto (OP_READ_INTERNAL);
5094 4921
5095 x = SCHEME_V->inport; 4922 x = SCHEME_V->inport;
5096 SCHEME_V->inport = car (SCHEME_V->args); 4923 SCHEME_V->inport = car (args);
5097 x = cons (x, NIL); 4924 x = cons (x, NIL);
5098 s_save (SCHEME_A_ OP_SET_INPORT, x, NIL); 4925 s_save (SCHEME_A_ OP_SET_INPORT, x, NIL);
5099 s_goto (OP_READ_INTERNAL); 4926 s_goto (OP_READ_INTERNAL);
5100 4927
5101 case OP_READ_CHAR: /* read-char */ 4928 case OP_READ_CHAR: /* read-char */
5102 case OP_PEEK_CHAR: /* peek-char */ 4929 case OP_PEEK_CHAR: /* peek-char */
5103 { 4930 {
5104 int c; 4931 int c;
5105 4932
5106 if (is_pair (SCHEME_V->args)) 4933 if (is_pair (args))
5107 { 4934 {
5108 if (car (SCHEME_V->args) != SCHEME_V->inport) 4935 if (car (args) != SCHEME_V->inport)
5109 { 4936 {
5110 x = SCHEME_V->inport; 4937 x = SCHEME_V->inport;
5111 x = cons (x, NIL); 4938 x = cons (x, NIL);
5112 s_save (SCHEME_A_ OP_SET_INPORT, x, NIL); 4939 s_save (SCHEME_A_ OP_SET_INPORT, x, NIL);
5113 SCHEME_V->inport = car (SCHEME_V->args); 4940 SCHEME_V->inport = car (args);
5114 } 4941 }
5115 } 4942 }
5116 4943
5117 c = inchar (SCHEME_A); 4944 c = inchar (SCHEME_A);
5118 4945
… …
5128 case OP_CHAR_READY: /* char-ready? */ 4955 case OP_CHAR_READY: /* char-ready? */
5129 { 4956 {
5130 pointer p = SCHEME_V->inport; 4957 pointer p = SCHEME_V->inport;
5131 int res; 4958 int res;
5132 4959
5133 if (is_pair (SCHEME_V->args)) 4960 if (is_pair (args))
5134 p = car (SCHEME_V->args); 4961 p = car (args);
5135 4962
5136 res = p->object.port->kind & port_string; 4963 res = p->object.port->kind & port_string;
5137 4964
5138 s_retbool (res); 4965 s_retbool (res);
5139 } 4966 }
5140 4967
5141 case OP_SET_INPORT: /* set-input-port */ 4968 case OP_SET_INPORT: /* set-input-port */
5142 SCHEME_V->inport = car (SCHEME_V->args); 4969 SCHEME_V->inport = car (args);
5143 s_return (SCHEME_V->value); 4970 s_return (SCHEME_V->value);
5144 4971
5145 case OP_SET_OUTPORT: /* set-output-port */ 4972 case OP_SET_OUTPORT: /* set-output-port */
5146 SCHEME_V->outport = car (SCHEME_V->args); 4973 SCHEME_V->outport = car (args);
5147 s_return (SCHEME_V->value); 4974 s_return (SCHEME_V->value);
5148#endif 4975#endif
5149 4976
5150 case OP_RDSEXPR: 4977 case OP_RDSEXPR:
5151 switch (SCHEME_V->tok) 4978 switch (SCHEME_V->tok)
… …
5237 } 5064 }
5238 5065
5239 break; 5066 break;
5240 5067
5241 case OP_RDLIST: 5068 case OP_RDLIST:
5242 SCHEME_V->args = cons (SCHEME_V->value, SCHEME_V->args); 5069 SCHEME_V->args = cons (SCHEME_V->value, args);
5243 SCHEME_V->tok = token (SCHEME_A); 5070 SCHEME_V->tok = token (SCHEME_A);
5244 5071
5245 switch (SCHEME_V->tok) 5072 switch (SCHEME_V->tok)
5246 { 5073 {
5247 case TOK_EOF: 5074 case TOK_EOF:
… …
5275 case OP_RDDOT: 5102 case OP_RDDOT:
5276 if (token (SCHEME_A) != TOK_RPAREN) 5103 if (token (SCHEME_A) != TOK_RPAREN)
5277 Error_0 ("syntax error: illegal dot expression"); 5104 Error_0 ("syntax error: illegal dot expression");
5278 5105
5279 SCHEME_V->nesting_stack[SCHEME_V->file_i]--; 5106 SCHEME_V->nesting_stack[SCHEME_V->file_i]--;
5280 s_return (reverse_in_place (SCHEME_A_ SCHEME_V->value, SCHEME_V->args)); 5107 s_return (reverse_in_place (SCHEME_A_ SCHEME_V->value, args));
5281 5108
5282 case OP_RDQUOTE: 5109 case OP_RDQUOTE:
5283 s_return (cons (SCHEME_V->QUOTE, cons (SCHEME_V->value, NIL))); 5110 s_return (cons (SCHEME_V->QUOTE, cons (SCHEME_V->value, NIL)));
5284 5111
5285 case OP_RDQQUOTE: 5112 case OP_RDQQUOTE:
… …
5307 SCHEME_V->args = SCHEME_V->value; 5134 SCHEME_V->args = SCHEME_V->value;
5308 s_goto (OP_VECTOR); 5135 s_goto (OP_VECTOR);
5309 5136
5310 /* ========== printing part ========== */ 5137 /* ========== printing part ========== */
5311 case OP_P0LIST: 5138 case OP_P0LIST:
5312 if (is_vector (SCHEME_V->args)) 5139 if (is_vector (args))
5313 { 5140 {
5314 putstr (SCHEME_A_ "#("); 5141 putstr (SCHEME_A_ "#(");
5315 SCHEME_V->args = cons (SCHEME_V->args, mk_integer (SCHEME_A_ 0)); 5142 SCHEME_V->args = cons (args, mk_integer (SCHEME_A_ 0));
5316 s_goto (OP_PVECFROM); 5143 s_goto (OP_PVECFROM);
5317 } 5144 }
5318 else if (is_environment (SCHEME_V->args)) 5145 else if (is_environment (args))
5319 { 5146 {
5320 putstr (SCHEME_A_ "#<ENVIRONMENT>"); 5147 putstr (SCHEME_A_ "#<ENVIRONMENT>");
5321 s_return (S_T); 5148 s_return (S_T);
5322 } 5149 }
5323 else if (!is_pair (SCHEME_V->args)) 5150 else if (!is_pair (args))
5324 { 5151 {
5325 printatom (SCHEME_A_ SCHEME_V->args, SCHEME_V->print_flag); 5152 printatom (SCHEME_A_ args, SCHEME_V->print_flag);
5326 s_return (S_T); 5153 s_return (S_T);
5327 } 5154 }
5328 else if (car (SCHEME_V->args) == SCHEME_V->QUOTE && ok_abbrev (cdr (SCHEME_V->args))) 5155 else
5329 { 5156 {
5157 pointer a = car (args);
5158 pointer b = cdr (args);
5159 int ok_abbr = ok_abbrev (b);
5160 SCHEME_V->args = car (b);
5161
5162 if (a == SCHEME_V->QUOTE && ok_abbr)
5330 putstr (SCHEME_A_ "'"); 5163 putstr (SCHEME_A_ "'");
5331 SCHEME_V->args = cadr (SCHEME_V->args); 5164 else if (a == SCHEME_V->QQUOTE && ok_abbr)
5165 putstr (SCHEME_A_ "`");
5166 else if (a == SCHEME_V->UNQUOTE && ok_abbr)
5167 putstr (SCHEME_A_ ",");
5168 else if (a == SCHEME_V->UNQUOTESP && ok_abbr)
5169 putstr (SCHEME_A_ ",@");
5170 else
5171 {
5172 putstr (SCHEME_A_ "(");
5173 s_save (SCHEME_A_ OP_P1LIST, b, NIL);
5174 SCHEME_V->args = a;
5175 }
5176
5332 s_goto (OP_P0LIST); 5177 s_goto (OP_P0LIST);
5333 } 5178 }
5334 else if (car (SCHEME_V->args) == SCHEME_V->QQUOTE && ok_abbrev (cdr (SCHEME_V->args))) 5179
5180 case OP_P1LIST:
5181 if (is_pair (args))
5335 { 5182 {
5183 s_save (SCHEME_A_ OP_P1LIST, cdr (args), NIL);
5336 putstr (SCHEME_A_ "`"); 5184 putstr (SCHEME_A_ " ");
5337 SCHEME_V->args = cadr (SCHEME_V->args); 5185 SCHEME_V->args = car (args);
5338 s_goto (OP_P0LIST); 5186 s_goto (OP_P0LIST);
5339 } 5187 }
5340 else if (car (SCHEME_V->args) == SCHEME_V->UNQUOTE && ok_abbrev (cdr (SCHEME_V->args)))
5341 {
5342 putstr (SCHEME_A_ ",");
5343 SCHEME_V->args = cadr (SCHEME_V->args);
5344 s_goto (OP_P0LIST);
5345 }
5346 else if (car (SCHEME_V->args) == SCHEME_V->UNQUOTESP && ok_abbrev (cdr (SCHEME_V->args)))
5347 {
5348 putstr (SCHEME_A_ ",@");
5349 SCHEME_V->args = cadr (SCHEME_V->args);
5350 s_goto (OP_P0LIST);
5351 }
5352 else
5353 {
5354 putstr (SCHEME_A_ "(");
5355 s_save (SCHEME_A_ OP_P1LIST, cdr (SCHEME_V->args), NIL);
5356 SCHEME_V->args = car (SCHEME_V->args);
5357 s_goto (OP_P0LIST);
5358 }
5359
5360 case OP_P1LIST:
5361 if (is_pair (SCHEME_V->args))
5362 {
5363 s_save (SCHEME_A_ OP_P1LIST, cdr (SCHEME_V->args), NIL);
5364 putstr (SCHEME_A_ " ");
5365 SCHEME_V->args = car (SCHEME_V->args);
5366 s_goto (OP_P0LIST);
5367 }
5368 else if (is_vector (SCHEME_V->args)) 5188 else if (is_vector (args))
5369 { 5189 {
5370 s_save (SCHEME_A_ OP_P1LIST, NIL, NIL); 5190 s_save (SCHEME_A_ OP_P1LIST, NIL, NIL);
5371 putstr (SCHEME_A_ " . "); 5191 putstr (SCHEME_A_ " . ");
5372 s_goto (OP_P0LIST); 5192 s_goto (OP_P0LIST);
5373 } 5193 }
5374 else 5194 else
5375 { 5195 {
5376 if (SCHEME_V->args != NIL) 5196 if (args != NIL)
5377 { 5197 {
5378 putstr (SCHEME_A_ " . "); 5198 putstr (SCHEME_A_ " . ");
5379 printatom (SCHEME_A_ SCHEME_V->args, SCHEME_V->print_flag); 5199 printatom (SCHEME_A_ args, SCHEME_V->print_flag);
5380 } 5200 }
5381 5201
5382 putstr (SCHEME_A_ ")"); 5202 putstr (SCHEME_A_ ")");
5383 s_return (S_T); 5203 s_return (S_T);
5384 } 5204 }
5385 5205
5386 case OP_PVECFROM: 5206 case OP_PVECFROM:
5387 { 5207 {
5388 int i = ivalue_unchecked (cdr (SCHEME_V->args)); 5208 int i = ivalue_unchecked (cdr (args));
5389 pointer vec = car (SCHEME_V->args); 5209 pointer vec = car (args);
5390 int len = veclength (vec); 5210 int len = veclength (vec);
5391 5211
5392 if (i == len) 5212 if (i == len)
5393 { 5213 {
5394 putstr (SCHEME_A_ ")"); 5214 putstr (SCHEME_A_ ")");
… …
5396 } 5216 }
5397 else 5217 else
5398 { 5218 {
5399 pointer elem = vector_elem (vec, i); 5219 pointer elem = vector_elem (vec, i);
5400 5220
5401 ivalue_unchecked (cdr (SCHEME_V->args)) = i + 1; 5221 ivalue_unchecked (cdr (args)) = i + 1;
5402 s_save (SCHEME_A_ OP_PVECFROM, SCHEME_V->args, NIL); 5222 s_save (SCHEME_A_ OP_PVECFROM, args, NIL);
5403 SCHEME_V->args = elem; 5223 SCHEME_V->args = elem;
5404 5224
5405 if (i > 0) 5225 if (i > 0)
5406 putstr (SCHEME_A_ " "); 5226 putstr (SCHEME_A_ " ");
5407 5227
5408 s_goto (OP_P0LIST); 5228 s_goto (OP_P0LIST);
5409 } 5229 }
5410 } 5230 }
5411 } 5231 }
5412 5232
5413 return S_T; 5233 abort ();
5414} 5234}
5415 5235
5416static pointer 5236static pointer
5417opexe_6 (SCHEME_P_ enum scheme_opcodes op) 5237opexe_6 (SCHEME_P_ enum scheme_opcodes op)
5418{ 5238{
5239 pointer args = SCHEME_V->args;
5240 pointer a = car (args);
5419 pointer x, y; 5241 pointer x, y;
5420 5242
5421 switch (op) 5243 switch (op)
5422 { 5244 {
5423 case OP_LIST_LENGTH: /* length *//* a.k */ 5245 case OP_LIST_LENGTH: /* length *//* a.k */
5424 { 5246 {
5425 long v = list_length (SCHEME_A_ car (SCHEME_V->args)); 5247 long v = list_length (SCHEME_A_ a);
5426 5248
5427 if (v < 0) 5249 if (v < 0)
5428 Error_1 ("length: not a list:", car (SCHEME_V->args)); 5250 Error_1 ("length: not a list:", a);
5429 5251
5430 s_return (mk_integer (SCHEME_A_ v)); 5252 s_return (mk_integer (SCHEME_A_ v));
5431 } 5253 }
5432 5254
5433 case OP_ASSQ: /* assq *//* a.k */ 5255 case OP_ASSQ: /* assq *//* a.k */
5434 x = car (SCHEME_V->args); 5256 x = a;
5435 5257
5436 for (y = cadr (SCHEME_V->args); is_pair (y); y = cdr (y)) 5258 for (y = cadr (args); is_pair (y); y = cdr (y))
5437 { 5259 {
5438 if (!is_pair (car (y))) 5260 if (!is_pair (car (y)))
5439 Error_0 ("unable to handle non pair element"); 5261 Error_0 ("unable to handle non pair element");
5440 5262
5441 if (x == caar (y)) 5263 if (x == caar (y))
… …
5447 else 5269 else
5448 s_return (S_F); 5270 s_return (S_F);
5449 5271
5450 5272
5451 case OP_GET_CLOSURE: /* get-closure-code *//* a.k */ 5273 case OP_GET_CLOSURE: /* get-closure-code *//* a.k */
5452 SCHEME_V->args = car (SCHEME_V->args); 5274 SCHEME_V->args = a;
5453 5275
5454 if (SCHEME_V->args == NIL) 5276 if (SCHEME_V->args == NIL)
5455 s_return (S_F); 5277 s_return (S_F);
5456 else if (is_closure (SCHEME_V->args)) 5278 else if (is_closure (SCHEME_V->args))
5457 s_return (cons (SCHEME_V->LAMBDA, closure_code (SCHEME_V->value))); 5279 s_return (cons (SCHEME_V->LAMBDA, closure_code (SCHEME_V->value)));
… …
5463 case OP_CLOSUREP: /* closure? */ 5285 case OP_CLOSUREP: /* closure? */
5464 /* 5286 /*
5465 * Note, macro object is also a closure. 5287 * Note, macro object is also a closure.
5466 * Therefore, (closure? <#MACRO>) ==> #t 5288 * Therefore, (closure? <#MACRO>) ==> #t
5467 */ 5289 */
5468 s_retbool (is_closure (car (SCHEME_V->args))); 5290 s_retbool (is_closure (a));
5469 5291
5470 case OP_MACROP: /* macro? */ 5292 case OP_MACROP: /* macro? */
5471 s_retbool (is_macro (car (SCHEME_V->args))); 5293 s_retbool (is_macro (a));
5472 } 5294 }
5473 5295
5474 return S_T; /* NOTREACHED */ 5296 abort ();
5475} 5297}
5476 5298
5477typedef pointer (*dispatch_func) (SCHEME_P_ enum scheme_opcodes); 5299typedef pointer (*dispatch_func) (SCHEME_P_ enum scheme_opcodes);
5478 5300
5479typedef int (*test_predicate) (pointer); 5301typedef int (*test_predicate)(pointer);
5480static int 5302static int
5481is_any (pointer p) 5303is_any (pointer p)
5482{ 5304{
5483 return 1; 5305 return 1;
5484} 5306}
5485 5307
5486static int 5308static int
5487is_nonneg (pointer p) 5309is_nonneg (pointer p)
5488{ 5310{
5489 return ivalue (p) >= 0 && is_integer (p); 5311 return ivalue (p) >= 0 && is_integer (p);
5312}
5313
5314static int
5315tst_is_list (pointer p)
5316{
5317 return p == NIL || is_pair (p);
5490} 5318}
5491 5319
5492/* Correspond carefully with following defines! */ 5320/* Correspond carefully with following defines! */
5493static struct 5321static struct
5494{ 5322{
5495 test_predicate fct; 5323 test_predicate fct;
5496 const char *kind; 5324 const char *kind;
5497} tests[] = 5325} tests[] =
5498{ 5326{
5499 { 0, 0}, /* unused */ 5327 { is_any, 0 },
5500 { is_any, 0}, 5328 { is_string, "string" },
5501 { is_string, "string" }, 5329 { is_symbol, "symbol" },
5502 { is_symbol, "symbol" }, 5330 { is_port, "port" },
5503 { is_port, "port" },
5504 { is_inport, "input port" }, 5331 { is_inport, "input port" },
5505 { is_outport, "output port" }, 5332 { is_outport, "output port" },
5506 { is_environment, "environment" }, 5333 { is_environment, "environment" },
5507 { is_pair, "pair" }, 5334 { is_pair, "pair" },
5508 { 0, "pair or '()" }, 5335 { tst_is_list, "pair or '()" },
5509 { is_character, "character" }, 5336 { is_character, "character" },
5510 { is_vector, "vector" }, 5337 { is_vector, "vector" },
5511 { is_number, "number" }, 5338 { is_number, "number" },
5512 { is_integer, "integer" }, 5339 { is_integer, "integer" },
5513 { is_nonneg, "non-negative integer" } 5340 { is_nonneg, "non-negative integer" }
5514}; 5341};
5515 5342
5516#define TST_NONE 0 5343#define TST_NONE 0 /* TST_NONE used for standard procedures, for internal ops, 0 is used */
5517#define TST_ANY "\001" 5344#define TST_ANY "\001"
5518#define TST_STRING "\002" 5345#define TST_STRING "\002"
5519#define TST_SYMBOL "\003" 5346#define TST_SYMBOL "\003"
5520#define TST_PORT "\004" 5347#define TST_PORT "\004"
5521#define TST_INPORT "\005" 5348#define TST_INPORT "\005"
5522#define TST_OUTPORT "\006" 5349#define TST_OUTPORT "\006"
5523#define TST_ENVIRONMENT "\007" 5350#define TST_ENVIRONMENT "\007"
5524#define TST_PAIR "\010" 5351#define TST_PAIR "\010"
5525#define TST_LIST "\011" 5352#define TST_LIST "\011"
5526#define TST_CHAR "\012" 5353#define TST_CHAR "\012"
5527#define TST_VECTOR "\013" 5354#define TST_VECTOR "\013"
5528#define TST_NUMBER "\014" 5355#define TST_NUMBER "\014"
5529#define TST_INTEGER "\015" 5356#define TST_INTEGER "\015"
5530#define TST_NATURAL "\016" 5357#define TST_NATURAL "\016"
5531 5358
5532typedef struct 5359typedef struct
5533{ 5360{
5534 dispatch_func func; 5361 dispatch_func func;
5535 char *name; 5362 char *name;
5536 int min_arity; 5363 int min_arity;
5537 int max_arity; 5364 int max_arity;
5538 char *arg_tests_encoding; 5365 char arg_tests_encoding[3];
5539} op_code_info; 5366} op_code_info;
5540 5367
5541#define INF_ARG 0xffff 5368#define INF_ARG 0xffff
5542 5369
5543static op_code_info dispatch_table[] = { 5370static op_code_info dispatch_table[] = {
5544#define OP_DEF(A,B,C,D,E,OP) {A,B,C,D,E}, 5371#define OP_DEF(func,name,minarity,maxarity,argtest,op) { opexe_ ## func, name, minarity, maxarity, argtest },
5545#include "opdefines.h" 5372#include "opdefines.h"
5373#undef OP_DEF
5546 {0} 5374 {0}
5547}; 5375};
5548 5376
5549static const char * 5377static const char *
5550procname (pointer x) 5378procname (pointer x)
… …
5574 int ok = 1; 5402 int ok = 1;
5575 char msg[STRBUFFSIZE]; 5403 char msg[STRBUFFSIZE];
5576 int n = list_length (SCHEME_A_ SCHEME_V->args); 5404 int n = list_length (SCHEME_A_ SCHEME_V->args);
5577 5405
5578 /* Check number of arguments */ 5406 /* Check number of arguments */
5579 if (n < pcd->min_arity) 5407 if (ecb_expect_false (n < pcd->min_arity))
5580 { 5408 {
5581 ok = 0; 5409 ok = 0;
5582 snprintf (msg, STRBUFFSIZE, "%s: needs%s %d argument(s)", 5410 snprintf (msg, STRBUFFSIZE, "%s: needs%s %d argument(s)",
5583 pcd->name, pcd->min_arity == pcd->max_arity ? "" : " at least", pcd->min_arity); 5411 pcd->name, pcd->min_arity == pcd->max_arity ? "" : " at least", pcd->min_arity);
5584 } 5412 }
5585 5413 else if (ecb_expect_false (n > pcd->max_arity))
5586 if (ok && n > pcd->max_arity)
5587 { 5414 {
5588 ok = 0; 5415 ok = 0;
5589 snprintf (msg, STRBUFFSIZE, "%s: needs%s %d argument(s)", 5416 snprintf (msg, STRBUFFSIZE, "%s: needs%s %d argument(s)",
5590 pcd->name, pcd->min_arity == pcd->max_arity ? "" : " at most", pcd->max_arity); 5417 pcd->name, pcd->min_arity == pcd->max_arity ? "" : " at most", pcd->max_arity);
5591 } 5418 }
5592 5419
5593 if (ok) 5420 if (ecb_expect_false (ok))
5594 { 5421 {
5595 if (pcd->arg_tests_encoding) 5422 if (*pcd->arg_tests_encoding)
5596 { 5423 {
5597 int i = 0; 5424 int i = 0;
5598 int j; 5425 int j;
5599 const char *t = pcd->arg_tests_encoding; 5426 const char *t = pcd->arg_tests_encoding;
5600 pointer arglist = SCHEME_V->args; 5427 pointer arglist = SCHEME_V->args;
5601 5428
5602 do 5429 do
5603 { 5430 {
5604 pointer arg = car (arglist); 5431 pointer arg = car (arglist);
5605 5432
5606 j = (int) t[0]; 5433 j = t[0];
5607 5434
5608 if (j == TST_LIST[0]) 5435 if (!tests[j - 1].fct (arg))
5609 {
5610 if (arg != NIL && !is_pair (arg))
5611 break; 5436 break;
5612 }
5613 else
5614 {
5615 if (!tests[j].fct (arg))
5616 break;
5617 }
5618 5437
5619 if (t[1] != 0) /* last test is replicated as necessary */ 5438 if (t[1]) /* last test is replicated as necessary */
5620 t++; 5439 t++;
5621 5440
5622 arglist = cdr (arglist); 5441 arglist = cdr (arglist);
5623 i++; 5442 i++;
5624 } 5443 }
… …
5642 } 5461 }
5643#endif 5462#endif
5644 5463
5645 ok_to_freely_gc (SCHEME_A); 5464 ok_to_freely_gc (SCHEME_A);
5646 5465
5647 if (pcd->func (SCHEME_A_ SCHEME_V->op) == NIL) 5466 if (ecb_expect_false (pcd->func (SCHEME_A_ SCHEME_V->op) == NIL))
5648 return; 5467 return;
5649 5468
5650 if (SCHEME_V->no_memory && USE_ERROR_CHECKING) 5469 if (SCHEME_V->no_memory && USE_ERROR_CHECKING)
5651 { 5470 {
5652 xwrstr ("No memory!\n"); 5471 xwrstr ("No memory!\n");
… …
5710 5529
5711 case 'd': 5530 case 'd':
5712 return OP_COND0; /* cond */ 5531 return OP_COND0; /* cond */
5713 5532
5714 case '*': 5533 case '*':
5715 return OP_LET0AST; /* let* */ 5534 return OP_LET0AST;/* let* */
5716 5535
5717 default: 5536 default:
5718 return OP_SET0; /* set! */ 5537 return OP_SET0; /* set! */
5719 } 5538 }
5720 5539
… …
5742 5561
5743 case 'f': 5562 case 'f':
5744 return OP_DEF0; /* define */ 5563 return OP_DEF0; /* define */
5745 5564
5746 default: 5565 default:
5747 return OP_LET0REC; /* letrec */ 5566 return OP_LET0REC;/* letrec */
5748 } 5567 }
5749 5568
5750 default: 5569 default:
5751 return OP_C0STREAM; /* cons-stream */ 5570 return OP_C0STREAM; /* cons-stream */
5752 } 5571 }
… …
6002{ 5821{
6003 dump_stack_reset (SCHEME_A); 5822 dump_stack_reset (SCHEME_A);
6004 SCHEME_V->envir = SCHEME_V->global_env; 5823 SCHEME_V->envir = SCHEME_V->global_env;
6005 SCHEME_V->file_i = 0; 5824 SCHEME_V->file_i = 0;
6006 SCHEME_V->load_stack[0].kind = port_input | port_string; 5825 SCHEME_V->load_stack[0].kind = port_input | port_string;
6007 SCHEME_V->load_stack[0].rep.string.start = (char *) cmd; /* This func respects const */ 5826 SCHEME_V->load_stack[0].rep.string.start = (char *)cmd; /* This func respects const */
6008 SCHEME_V->load_stack[0].rep.string.past_the_end = (char *) cmd + strlen (cmd); 5827 SCHEME_V->load_stack[0].rep.string.past_the_end = (char *)cmd + strlen (cmd);
6009 SCHEME_V->load_stack[0].rep.string.curr = (char *) cmd; 5828 SCHEME_V->load_stack[0].rep.string.curr = (char *)cmd;
6010#if USE_PORTS 5829#if USE_PORTS
6011 SCHEME_V->loadport = mk_port (SCHEME_A_ SCHEME_V->load_stack); 5830 SCHEME_V->loadport = mk_port (SCHEME_A_ SCHEME_V->load_stack);
6012#endif 5831#endif
6013 SCHEME_V->retcode = 0; 5832 SCHEME_V->retcode = 0;
6014 SCHEME_V->interactive_repl = 0; 5833 SCHEME_V->interactive_repl = 0;

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