Commit | Line | Data |
---|---|---|
95af7ab2 KT |
1 | / |
2 | / | |
3 | ||
4 | / bas0 -- basic | |
5 | ||
6 | scope = 1 | |
7 | .globl main | |
8 | .globl sin, cos, log, exp, atan, pow, sqrt | |
9 | .globl rand, srand | |
10 | .globl fptrap | |
11 | .globl fopen, getc | |
12 | ||
13 | indir = 0 /for indirect sys calls. (not in as) | |
14 | one = 40200 | |
15 | ||
16 | main: | |
17 | mov $1,prfile /initial print file | |
18 | sys signal; 4; fptrap | |
19 | setd | |
20 | sys time | |
21 | mov r1,r0 | |
22 | mov r0,randx | |
23 | jsr pc,srand | |
24 | sys signal; 1; _done | |
25 | sys signal; 2; intrup | |
26 | tst r0 | |
27 | jeq 1f | |
28 | sys signal; 2; 1 | |
29 | 1: | |
30 | mov sp,gsp | |
31 | clr seeka | |
32 | mov $'a,r1 | |
33 | 1: | |
34 | movb r1,tmpf+8 | |
35 | sys stat; tmpf; line | |
36 | bes 1f | |
37 | inc r1 | |
38 | cmp r1,$'z | |
39 | blos 1b | |
40 | br 2f | |
41 | 1: | |
42 | sys creat; tmpf; 600 | |
43 | bes 2f | |
44 | mov r0,tfo | |
45 | sys open; tmpf; 0 | |
46 | bec 1f | |
47 | 2: | |
48 | mov $3f,r0 | |
49 | jsr pc,print | |
50 | sys exit | |
51 | 3: | |
52 | <Tmp file?\n\0>; .even | |
53 | 1: | |
54 | mov r0,tfi | |
55 | ||
56 | mov gsp,sp | |
57 | cmp (sp),$2 /is there a file argument | |
58 | blt noarg | |
59 | mov 4(sp),r0 | |
60 | mov $argname,r1 | |
61 | 1: | |
62 | movb (r0)+,(r1)+ | |
63 | bne 1b | |
64 | aftered: / after edit | |
65 | mov $argname,r0 | |
66 | jsr r5,fopen; iobuf | |
67 | bes 1f | |
68 | noarg: | |
69 | jsr pc,isymtab | |
70 | br loop | |
71 | 1: | |
72 | mov $1f,r0 | |
73 | jsr pc,print | |
74 | br loop | |
75 | 1: | |
76 | <Cannot open file\n\0>; .even | |
77 | ||
78 | intrup: | |
79 | sys signal; 2; intrup | |
80 | mov $'\n,r0 | |
81 | jsr r5,xputc | |
82 | jsr r5,error | |
83 | <ready\n\0>; .even | |
84 | ||
85 | loop: | |
86 | mov gsp,sp | |
87 | clr lineno | |
88 | jsr pc,rdline | |
89 | mov $line,r3 | |
90 | 1: | |
91 | movb (r3),r0 | |
92 | jsr pc,digit | |
93 | br 1f | |
94 | jsr r5,atoi | |
95 | cmp r0,$' / | |
96 | beq 3f | |
97 | cmp r0,$' /tab | |
98 | bne 1f | |
99 | 3: | |
100 | mov $lintab,r3 | |
101 | mov r1,r0 | |
102 | bgt 2f | |
103 | jsr pc,serror | |
104 | 2: | |
105 | cmp r0,(r3) | |
106 | beq 2f | |
107 | tst (r3) | |
108 | beq 2f | |
109 | add $6,r3 | |
110 | br 2b | |
111 | 2: | |
112 | cmp r3,$elintab-12. | |
113 | blo 2f | |
114 | jsr r5,error | |
115 | <too many lines\n\0>; .even | |
116 | 2: | |
117 | mov r0,(r3)+ | |
118 | mov seeka,(r3)+ | |
119 | mov tfo,r0 | |
120 | mov seeka,seekx | |
121 | sys indir; sysseek | |
122 | mov $line,r0 | |
123 | jsr pc,size | |
124 | inc r0 | |
125 | add r0,seeka | |
126 | mov r0,wlen | |
127 | mov tfo,r0 | |
128 | mov $line,wbuf | |
129 | sys indir;syswrit | |
130 | br loop | |
131 | 1: | |
132 | mov $line,r3 | |
133 | jsr pc,singstat | |
134 | br loop | |
135 | ||
136 | nextc: | |
137 | movb (r3)+,r0 | |
138 | rts r5 | |
139 | ||
140 | size: | |
141 | clr -(sp) | |
142 | 1: | |
143 | inc (sp) | |
144 | cmpb (r0),$'\n | |
145 | beq 1f | |
146 | cmpb (r0),$0 | |
147 | beq 1f | |
148 | inc r0 | |
149 | br 1b | |
150 | 1: | |
151 | mov (sp)+,r0 | |
152 | rts pc | |
153 | ||
154 | rdline: / read input (file or tty) to carr. ret. | |
155 | mov $line,r1 | |
156 | 1: | |
157 | jsr r5,getc; iobuf | |
158 | bes 2f | |
159 | tst r0 | |
160 | beq 2f | |
161 | cmp r1,$line+99. | |
162 | bhis 2f / bad check, but a check | |
163 | movb r0,(r1)+ | |
164 | cmpb r0,$'\n | |
165 | bne 1b | |
166 | clrb (r1) | |
167 | rts pc | |
168 | 2: | |
169 | mov fi,r0 | |
170 | beq 1f | |
171 | sys close | |
172 | clr fi | |
173 | br 1b | |
174 | 1: | |
175 | jmp _done | |
176 | ||
177 | error: | |
178 | tst fi | |
179 | beq 1f | |
180 | sys close | |
181 | clr fi | |
182 | 1: | |
183 | tst lineno | |
184 | beq 1f | |
185 | jsr pc,nextlin | |
186 | br 1f | |
187 | mov $line,r0 | |
188 | jsr pc,print | |
189 | 1: | |
190 | mov r5,r0 | |
191 | jsr pc,print | |
192 | jmp loop | |
193 | ||
194 | serror: | |
195 | dec r3 | |
196 | tst fi | |
197 | beq 1f | |
198 | sys close | |
199 | clr fi | |
200 | 1: | |
201 | mov $line,r1 | |
202 | 1: | |
203 | cmp r1,r3 | |
204 | bne 2f | |
205 | mov $'_,r0 | |
206 | jsr r5,xputc | |
207 | mov $10,r0 | |
208 | jsr r5,xputc | |
209 | 2: | |
210 | movb (r1),r0 | |
211 | jsr r5,xputc | |
212 | cmpb (r1)+,$'\n | |
213 | bne 1b | |
214 | jmp loop | |
215 | ||
216 | print: | |
217 | mov r0,wbuf | |
218 | jsr pc,size | |
219 | mov r0,wlen | |
220 | mov prfile,r0 | |
221 | sys indir; syswrit | |
222 | rts pc | |
223 | ||
224 | digit: | |
225 | cmp r0,$'0 | |
226 | blo 1f | |
227 | cmp r0,$'9 | |
228 | bhi 1f | |
229 | add $2,(sp) | |
230 | 1: | |
231 | rts pc | |
232 | ||
233 | alpha: | |
234 | cmp r0,$'a | |
235 | blo 1f | |
236 | cmp r0,$'z | |
237 | bhi 1f | |
238 | add $2,(sp) | |
239 | 1: | |
240 | cmp r0,$'A | |
241 | blo 1f | |
242 | cmp r0,$'Z | |
243 | bhi 1f | |
244 | add $2,(sp) | |
245 | 1: | |
246 | rts pc | |
247 | ||
248 | name: | |
249 | mov $nameb,r1 | |
250 | clr (r1) | |
251 | clr 2(r1) | |
252 | 1: | |
253 | cmp r1,$nameb+4 | |
254 | bhis 2f | |
255 | movb r0,(r1)+ | |
256 | 2: | |
257 | movb (r3)+,r0 | |
258 | jsr pc,alpha | |
259 | br 2f | |
260 | br 1b | |
261 | 2: | |
262 | jsr pc,digit | |
263 | br 2f | |
264 | br 1b | |
265 | 2: | |
266 | mov $resnam,r1 | |
267 | 1: | |
268 | cmp nameb,(r1) | |
269 | bne 2f | |
270 | cmp nameb+2,2(r1) | |
271 | bne 2f | |
272 | sub $resnam,r1 | |
273 | asr r1 | |
274 | add $2,(sp) | |
275 | rts pc | |
276 | 2: | |
277 | add $4,r1 | |
278 | cmp r1,$eresnam | |
279 | blo 1b | |
280 | mov $symtab,r1 | |
281 | 1: | |
282 | tst (r1) | |
283 | beq 1f | |
284 | cmp nameb,(r1) | |
285 | bne 2f | |
286 | cmp nameb+2,2(r1) | |
287 | bne 2f | |
288 | rts pc | |
289 | 2: | |
290 | add $14.,r1 | |
291 | br 1b | |
292 | 1: | |
293 | cmp r1,$esymtab-28. | |
294 | blo 1f | |
295 | jsr r5,error | |
296 | <out of symbol space\n\0>; .even | |
297 | 1: | |
298 | mov nameb,(r1) | |
299 | mov nameb+2,2(r1) | |
300 | clr 4(r1) | |
301 | clr 14.(r1) | |
302 | rts pc | |
303 | ||
304 | skip: | |
305 | cmp r0,$' / | |
306 | beq 1f | |
307 | cmp r0,$' / tab | |
308 | bne 2f | |
309 | 1: | |
310 | movb (r3)+,r0 | |
311 | br skip | |
312 | 2: | |
313 | rts pc | |
314 | ||
315 | xputc: | |
316 | .if scope / for plotting | |
317 | tstb drflg | |
318 | beq 1f | |
319 | jsr pc,drput | |
320 | rts r5 | |
321 | 1: | |
322 | .endif | |
323 | mov r0,ch | |
324 | mov $1,r0 | |
325 | sys write; ch; 1 | |
326 | rts r5 | |
327 | ||
328 | nextlin: | |
329 | clr -(sp) | |
330 | mov $lintab,r1 | |
331 | 1: | |
332 | tst (r1) | |
333 | beq 1f | |
334 | cmp lineno,(r1) | |
335 | bhi 2f | |
336 | mov (sp),r0 | |
337 | beq 3f | |
338 | cmp (r0),(r1) | |
339 | blos 2f | |
340 | 3: | |
341 | mov r1,(sp) | |
342 | 2: | |
343 | add $6,r1 | |
344 | br 1b | |
345 | 1: | |
346 | mov (sp)+,r1 | |
347 | beq 1f | |
348 | mov (r1)+,lineno | |
349 | mov (r1)+,seekx | |
350 | mov tfi,r0 | |
351 | sys indir; sysseek | |
352 | mov tfi,r0 | |
353 | sys read; line; 100. | |
354 | add $2,(sp) | |
355 | 1: | |
356 | rts pc | |
357 | ||
358 | getloc: | |
359 | mov $lintab,r1 | |
360 | 1: | |
361 | tst (r1) | |
362 | beq 1f | |
363 | cmp r0,(r1) | |
364 | beq 2f | |
365 | add $6,r1 | |
366 | br 1b | |
367 | 1: | |
368 | jsr r5,error | |
369 | <label not found\n\0>; .even | |
370 | 2: | |
371 | rts pc | |
372 | ||
373 | isymtab: | |
374 | mov $symtab,r0 | |
375 | mov $symtnam,r1 | |
376 | clrf fr0 | |
377 | movf $one,fr1 | |
378 | 1: | |
379 | mov (r1)+,(r0)+ | |
380 | mov (r1)+,(r0)+ | |
381 | mov $1,(r0)+ | |
382 | subf r1,r0 | |
383 | movf r0,(r0)+ | |
384 | cmp r1,$esymtnam | |
385 | blo 1b | |
386 | clr (r0)+ | |
387 | rts pc | |
388 | ||
389 | / | |
390 | / | |
391 | ||
392 | / bas1 -- compile | |
393 | / | |
394 | / convention: jsr pc,subrout /test | |
395 | / br failside | |
396 | / succeed ... | |
397 | ||
398 | compile: | |
399 | clr forp | |
400 | mov $iflev,ifp /added for if..else..fi | |
401 | mov $space,r4 | |
402 | tst lineno | |
403 | beq 1f | |
404 | rts pc | |
405 | 1: | |
406 | jsr pc,nextlin | |
407 | br 1f | |
408 | mov lineno,r0 | |
409 | jsr pc,getloc | |
410 | mov r4,4(r1) | |
411 | jsr pc,statement | |
412 | br .+2 | |
413 | inc lineno | |
414 | cmp r4,$espace+20 / out of code space? | |
415 | blo 1b | |
416 | jsr r5,error | |
417 | <out of code space\n\0>; .even | |
418 | 1: | |
419 | tst forp | |
420 | jne forer | |
421 | cmp ifp,$iflev | |
422 | jne fier /hanging if..fi | |
423 | mov $loop,(r4)+ | |
424 | rts pc | |
425 | ||
426 | singstat: | |
427 | clr forp | |
428 | mov $iflev,ifp | |
429 | mov $exline,r4 | |
430 | jsr pc,statement | |
431 | br 1f | |
432 | cmp -2(r4),$_asgn | |
433 | beq 1f | |
434 | mov $_print,(r4)+ | |
435 | mov $_nline,(r4)+ | |
436 | 1: | |
437 | tst forp | |
438 | jne forer | |
439 | cmp r4,$eexline | |
440 | blo 1f | |
441 | jsr r5,error | |
442 | <out of code space\n\0>; .even | |
443 | 1: | |
444 | mov $loop,(r4)+ | |
445 | mov r4,exprloc | |
446 | mov $exline,r4 | |
447 | jmp execute | |
448 | ||
449 | statement: | |
450 | mov $line,r3 | |
451 | movb (r3)+,r0 | |
452 | jsr pc,digit | |
453 | br stat1 | |
454 | dec r3 | |
455 | jsr r5,atoi | |
456 | cmp r0,$' / | |
457 | beq 1f | |
458 | cmp r0,$' /tab | |
459 | beq 1f | |
460 | mov $line,r3 | |
461 | movb (r3)+,r0 | |
462 | br stat1 | |
463 | 1: | |
464 | mov $_line,(r4)+ | |
465 | mov r1,(r4)+ | |
466 | ||
467 | stat1: | |
468 | jsr pc,skip | |
469 | cmp r0,$'\n | |
470 | bne .+4 | |
471 | rts pc | |
472 | mov r3,-(sp) | |
473 | jsr pc,alpha | |
474 | br 1f | |
475 | jsr pc,name | |
476 | br 1f | |
477 | tst (sp)+ | |
478 | jsr pc,skip | |
479 | dec r3 | |
480 | jmp *2f(r1) | |
481 | 2: | |
482 | stlist | |
483 | stdone | |
484 | stdone | |
485 | strun | |
486 | stprint | |
487 | stprompt / prompt is like print except for cr | |
488 | stif | |
489 | stgoto | |
490 | streturn | |
491 | stfor | |
492 | stnext | |
493 | stoctl | |
494 | stsave | |
495 | stdump | |
496 | stfi | |
497 | stelse | |
498 | stedit | |
499 | stcomment | |
500 | .if scope / for plotting on tektronix | |
501 | stdisp | |
502 | stdraw | |
503 | steras | |
504 | .endif | |
505 | ||
506 | 1: | |
507 | mov (sp)+,r3 | |
508 | dec r3 | |
509 | jsr pc,expr | |
510 | cmp r0,$'\n | |
511 | jne joe | |
512 | add $2,(sp) | |
513 | rts pc | |
514 | ||
515 | stsave: | |
516 | mov $_save,func | |
517 | br 1f | |
518 | ||
519 | stlist: | |
520 | mov $_list,func | |
521 | 1: | |
522 | cmp r0,$'\n | |
523 | bne 1f | |
524 | clrf r0 | |
525 | jsr pc,const | |
526 | movif $77777,r0 | |
527 | jsr pc,const | |
528 | br 2f | |
529 | 1: | |
530 | jsr pc,expr | |
531 | cmp r0,$'\n | |
532 | bne 1f | |
533 | mov $_dup,(r4)+ | |
534 | br 2f | |
535 | 1: | |
536 | dec r3 | |
537 | jsr pc,expr | |
538 | cmp r0,$'\n | |
539 | jne joe | |
540 | 2: | |
541 | mov func,(r4)+ | |
542 | rts pc | |
543 | ||
544 | stdone: | |
545 | cmp r0,$'\n | |
546 | jne joe | |
547 | mov $_done,(r4)+ | |
548 | rts pc | |
549 | ||
550 | strun: | |
551 | cmp r0,$'\n | |
552 | jne joe | |
553 | mov $_run,(r4)+ | |
554 | rts pc | |
555 | ||
556 | ||
557 | stprompt: | |
558 | clr -(sp) | |
559 | br stpr2 | |
560 | ||
561 | stdump: | |
562 | cmp r0,$'\n | |
563 | jne joe | |
564 | mov $_dump,(r4)+ | |
565 | rts pc | |
566 | ||
567 | stprint: | |
568 | mov pc,-(sp) | |
569 | stpr2: | |
570 | movb (r3)+,r0 | |
571 | jsr pc,skip | |
572 | 1: | |
573 | cmp r0,$'\n | |
574 | beq 2f | |
575 | cmp r0,$'" | |
576 | beq 1f | |
577 | dec r3 | |
578 | jsr pc,expr | |
579 | mov $_print,(r4)+ | |
580 | br 1b | |
581 | 1: | |
582 | mov $_ascii,(r4)+ | |
583 | 1: | |
584 | movb (r3)+,(r4) | |
585 | cmpb (r4),$'" | |
586 | beq 1f | |
587 | cmpb (r4)+,$'\n | |
588 | bne 1b | |
589 | jbr joe | |
590 | 1: | |
591 | add $2,r4 | |
592 | bic $1,r4 | |
593 | br stpr2 | |
594 | 2: | |
595 | tst (sp)+ | |
596 | beq 1f | |
597 | mov $_nline,(r4)+ | |
598 | 1: | |
599 | rts pc | |
600 | ||
601 | stif: | |
602 | jsr pc,expr | |
603 | mov $_if,(r4)+ | |
604 | mov r4,*ifp | |
605 | add $2,ifp | |
606 | tst (r4)+ | |
607 | jsr pc,skip | |
608 | cmp r0,$'\n / if ... fi | |
609 | beq 1f | |
610 | jsr pc,stat1 | |
611 | br .+2 | |
612 | stfi: | |
613 | sub $2,ifp | |
614 | cmp ifp,$iflev | |
615 | jlo fier | |
616 | mov *ifp,r1 /for jump around if | |
617 | mov r4,(r1) | |
618 | 1: | |
619 | rts pc | |
620 | ||
621 | fier: | |
622 | jsr r5,error; <if...else...fi imbalance\n\0>; .even | |
623 | ||
624 | stelse: | |
625 | mov $_tra,(r4)+ /jump around else side | |
626 | mov r4+,-(sp) / save hole | |
627 | tst (r4)+ | |
628 | sub $2,ifp | |
629 | cmp ifp,$iflev | |
630 | jlo fier | |
631 | mov *ifp,r1 | |
632 | mov r4,(r1) /fill in jump to else | |
633 | mov (sp)+,*ifp /save hole for fi | |
634 | add $2,ifp | |
635 | rts pc | |
636 | ||
637 | stedit: / enter the regular editor <ed> | |
638 | sys fork | |
639 | br newpr | |
640 | mov $lintab,r0 / zero out line table during edit | |
641 | 1: | |
642 | cmp r0,$elintab /done | |
643 | beq 1f | |
644 | mov $0,(r0)+ | |
645 | br 1b | |
646 | 1: | |
647 | sys unlink; tmpf | |
648 | sys wait | |
649 | jmp aftered / start over | |
650 | newpr: | |
651 | sys exec; ed; edarg | |
652 | sys exit | |
653 | ed: </bin/ed\0> ; .even | |
654 | ednm: <-\n> | |
655 | .even | |
656 | edarg: ednm; argname; 0 | |
657 | ||
658 | stcomment: /comment line | |
659 | cmp r0,$'\n | |
660 | beq 1f | |
661 | movb (r3)+,r0 | |
662 | br stcomment | |
663 | 1: | |
664 | rts pc | |
665 | stgoto: | |
666 | jsr pc,expr | |
667 | mov $_goto,(r4)+ | |
668 | rts pc | |
669 | ||
670 | streturn: | |
671 | cmp r0,$'\n | |
672 | beq 1f | |
673 | jsr pc,expr | |
674 | cmp r0,$'\n | |
675 | bne joe | |
676 | br 2f | |
677 | 1: | |
678 | clrf r0 | |
679 | jsr pc,const | |
680 | 2: | |
681 | mov $_return,(r4)+ | |
682 | rts pc | |
683 | ||
684 | joe: | |
685 | jsr pc,serror | |
686 | ||
687 | stfor: | |
688 | mov r4,-(sp) | |
689 | jsr pc,e2 | |
690 | mov r4,-(sp) | |
691 | cmp r0,$'= | |
692 | bne joe | |
693 | tst val | |
694 | bne joe | |
695 | jsr pc,expr | |
696 | mov forp,(r4)+ / overlay w _asgn | |
697 | mov r4,forp | |
698 | cmp (r4)+,(r4)+ / _tra .. | |
699 | mov (sp)+,r0 | |
700 | mov (sp)+,r1 | |
701 | 1: | |
702 | mov (r1)+,(r4)+ | |
703 | cmp r1,r0 | |
704 | blo 1b | |
705 | mov $_fori,(r4)+ | |
706 | mov forp,r1 | |
707 | mov $_tra,(r1)+ | |
708 | mov r4,(r1)+ | |
709 | dec r3 | |
710 | jsr pc,expr | |
711 | mov $_lesseq,(r4)+ | |
712 | mov $_if,(r4)+ | |
713 | mov forp,(r4)+ | |
714 | mov r4,forp | |
715 | cmp r0,$'\n | |
716 | beq 1f | |
717 | jsr pc,stat1 | |
718 | br .+2 | |
719 | br stnext | |
720 | 1: | |
721 | rts pc | |
722 | ||
723 | forer: | |
724 | jsr r5,error; <for/next imbalance\n\0>; .even | |
725 | ||
726 | stnext: | |
727 | mov forp,r1 | |
728 | beq forer | |
729 | mov -(r1),r0 | |
730 | mov -(r0),forp | |
731 | mov $_ptra,(r4)+ | |
732 | mov $_asgn,(r0)+ | |
733 | cmp (r0)+,(r0)+ | |
734 | mov r0,(r4)+ | |
735 | mov r4,(r1)+ | |
736 | rts pc | |
737 | ||
738 | stoctl: | |
739 | jsr pc,expr | |
740 | mov $_octal,(r4)+ | |
741 | rts pc | |
742 | ||
743 | .if scope / for plotting | |
744 | stdisp: | |
745 | mov $_sdisp,(r4)+ | |
746 | jsr pc,stprint | |
747 | mov $_fdisp,(r4)+ | |
748 | rts pc | |
749 | stdraw: | |
750 | jsr pc,expr | |
751 | dec r3 | |
752 | jsr pc,expr | |
753 | cmp r0,$'\n | |
754 | bne 1f | |
755 | movf $one,r0 | |
756 | jsr pc,const | |
757 | br 2f | |
758 | 1: | |
759 | dec r3 | |
760 | jsr pc,expr | |
761 | 2: | |
762 | mov $_draw,(r4)+ | |
763 | rts pc | |
764 | ||
765 | steras: | |
766 | mov $_erase,(r4)+ | |
767 | rts pc | |
768 | .endif | |
769 | ||
770 | / | |
771 | / | |
772 | ||
773 | / bas2 -- expression evaluation | |
774 | ||
775 | expr: | |
776 | jsr pc,e1 | |
777 | jsr pc,rval | |
778 | rts pc | |
779 | ||
780 | / assignment right to left | |
781 | e1: | |
782 | jsr pc,e2 | |
783 | cmp r0,$'= | |
784 | beq 1f | |
785 | jsr pc,rval | |
786 | rts pc | |
787 | 1: | |
788 | tst val | |
789 | beq 1f | |
790 | jsr pc,serror | |
791 | 1: | |
792 | jsr pc,e1 | |
793 | jsr r5,op; _asgn | |
794 | rts pc | |
795 | ||
796 | / and or left to right | |
797 | e2: | |
798 | jsr pc,e3 | |
799 | 1: | |
800 | cmp r0,$'& | |
801 | beq 2f | |
802 | cmp r0,$'| | |
803 | beq 3f | |
804 | rts pc | |
805 | 2: | |
806 | jsr pc,rval | |
807 | jsr pc,e3 | |
808 | jsr r5,op; _and | |
809 | br 1b | |
810 | 3: | |
811 | jsr pc,rval | |
812 | jsr pc,e3 | |
813 | jsr r5,op; _or | |
814 | br 1b | |
815 | ||
816 | / relation extended relation | |
817 | e3: | |
818 | jsr pc,e4 | |
819 | jsr pc,e3a | |
820 | rts pc | |
821 | clr -(sp) | |
822 | 1: | |
823 | mov r0,-(sp) | |
824 | jsr pc,e4 | |
825 | jsr pc,rval | |
826 | mov (sp)+,(r4)+ | |
827 | jsr pc,e3a | |
828 | br 1f | |
829 | mov $_extr,(r4)+ | |
830 | inc (sp) | |
831 | br 1b | |
832 | 1: | |
833 | dec (sp) | |
834 | blt 1f | |
835 | mov $_and,(r4)+ | |
836 | br 1b | |
837 | 1: | |
838 | tst (sp)+ | |
839 | rts pc | |
840 | ||
841 | / relational operator | |
842 | e3a: | |
843 | cmp r0,$'> | |
844 | beq 1f | |
845 | cmp r0,$'< | |
846 | beq 2f | |
847 | cmp r0,$'= | |
848 | beq 3f | |
849 | rts pc | |
850 | 1: | |
851 | mov $_great,r0 | |
852 | cmpb (r3),$'= | |
853 | bne 1f | |
854 | inc r3 | |
855 | mov $_greateq,r0 | |
856 | br 1f | |
857 | 2: | |
858 | cmpb (r3),$'> | |
859 | bne 2f | |
860 | inc r3 | |
861 | mov $_noteq,r0 | |
862 | br 1f | |
863 | 2: | |
864 | mov $_less,r0 | |
865 | cmpb (r3),$'= | |
866 | bne 1f | |
867 | inc r3 | |
868 | mov $_lesseq,r0 | |
869 | br 1f | |
870 | 3: | |
871 | cmpb (r3),$'= | |
872 | beq 2f | |
873 | rts pc | |
874 | 2: | |
875 | inc r3 | |
876 | mov $_equal,r0 | |
877 | 1: | |
878 | jsr pc,rval | |
879 | add $2,(sp) | |
880 | rts pc | |
881 | ||
882 | / add subtract | |
883 | e4: | |
884 | jsr pc,e5 | |
885 | 1: | |
886 | cmp r0,$'+ | |
887 | beq 2f | |
888 | cmp r0,$'- | |
889 | beq 3f | |
890 | rts pc | |
891 | 2: | |
892 | jsr pc,rval | |
893 | jsr pc,e5 | |
894 | jsr r5,op; _add | |
895 | br 1b | |
896 | 3: | |
897 | jsr pc,rval | |
898 | jsr pc,e5 | |
899 | jsr r5,op; _sub | |
900 | br 1b | |
901 | ||
902 | / multiply divide | |
903 | e5: | |
904 | jsr pc,e6 | |
905 | 1: | |
906 | cmp r0,$'* | |
907 | beq 2f | |
908 | cmp r0,$'/ | |
909 | beq 3f | |
910 | rts pc | |
911 | 2: | |
912 | jsr pc,rval | |
913 | jsr pc,e6 | |
914 | jsr r5,op; _mult | |
915 | br 1b | |
916 | 3: | |
917 | jsr pc,rval | |
918 | jsr pc,e6 | |
919 | jsr r5,op; _divid | |
920 | br 1b | |
921 | ||
922 | / exponential | |
923 | e6: | |
924 | jsr pc,e6a | |
925 | 1: | |
926 | cmp r0,$'^ | |
927 | beq 2f | |
928 | rts pc | |
929 | 2: | |
930 | jsr pc,rval | |
931 | jsr pc,e6a | |
932 | jsr r5,op; _expon | |
933 | br 1b | |
934 | ||
935 | e6a: | |
936 | movb (r3)+,r0 | |
937 | jsr pc,skip | |
938 | cmp r0,$'_ | |
939 | bne 1f | |
940 | jsr pc,e6a | |
941 | jsr r5,op; _neg | |
942 | rts pc | |
943 | 1: | |
944 | dec r3 | |
945 | jsr pc,e7 | |
946 | rts pc | |
947 | / end of unary - | |
948 | ||
949 | / primary | |
950 | e7: | |
951 | movb (r3)+,r0 | |
952 | jsr pc,skip | |
953 | mov $1,val | |
954 | cmp r0,$'( | |
955 | bne 1f | |
956 | jsr pc,e1 | |
957 | cmp r0,$') | |
958 | bne 2f | |
959 | movb (r3)+,r0 | |
960 | br e7a | |
961 | 2: | |
962 | jsr pc,serror | |
963 | 1: | |
964 | cmp r0,$'. | |
965 | beq 2f | |
966 | jsr pc,digit | |
967 | br 1f | |
968 | 2: | |
969 | dec r3 | |
970 | jsr r5,atof; nextc | |
971 | jsr pc,const | |
972 | br e7a | |
973 | 1: | |
974 | jsr pc,alpha | |
975 | br jim | |
976 | jsr pc,name | |
977 | br 2f | |
978 | jsr r5,error; <reserved name\n\0>; .even | |
979 | 2: | |
980 | / try to fix illegal symbol bug: | |
981 | cmp r4,$eexline | |
982 | bhis jim | |
983 | ||
984 | mov $_lval,(r4)+ | |
985 | mov r1,(r4)+ | |
986 | clr val | |
987 | br e7a | |
988 | jim: | |
989 | jsr pc,serror | |
990 | ||
991 | e7a: | |
992 | jsr pc,skip | |
993 | cmp r0,$'( | |
994 | bne 1f | |
995 | jsr pc,rval | |
996 | jsr r5,rlist; _funct | |
997 | cmp r0,$') | |
998 | bne jim | |
999 | movb (r3)+,r0 | |
1000 | br e7a | |
1001 | 1: | |
1002 | cmp r0,$'[ | |
1003 | bne 1f | |
1004 | tst val | |
1005 | beq 2f | |
1006 | jsr pc,serror | |
1007 | 2: | |
1008 | jsr r5,rlist; _subscr | |
1009 | clr val | |
1010 | cmp r0,$'] | |
1011 | bne jim | |
1012 | movb (r3)+,r0 | |
1013 | br e7a | |
1014 | 1: | |
1015 | rts pc | |
1016 | ||
1017 | op: | |
1018 | jsr pc,rval | |
1019 | mov (r5)+,(r4)+ | |
1020 | rts r5 | |
1021 | ||
1022 | rval: | |
1023 | tst val | |
1024 | bne 1f | |
1025 | mov $_rval,(r4)+ | |
1026 | inc val | |
1027 | 1: | |
1028 | rts pc | |
1029 | ||
1030 | const: | |
1031 | mov r0,-(sp) | |
1032 | movf r1,-(sp) | |
1033 | tstf r0 | |
1034 | cfcc | |
1035 | bne 1f | |
1036 | mov $_con0,(r4)+ | |
1037 | br 2f | |
1038 | 1: | |
1039 | cmpf $one,r0 | |
1040 | cfcc | |
1041 | bne 1f | |
1042 | mov $_con1,(r4)+ | |
1043 | br 2f | |
1044 | 1: | |
1045 | movfi r0,r0 | |
1046 | movif r0,r1 | |
1047 | cmpf r0,r1 | |
1048 | cfcc | |
1049 | bne 1f | |
1050 | mov $_intcon,(r4)+ | |
1051 | mov r0,(r4)+ | |
1052 | br 2f | |
1053 | 1: | |
1054 | mov $_const,(r4)+ | |
1055 | movf r0,(r4)+ | |
1056 | 2: | |
1057 | movf (sp)+,r1 | |
1058 | mov (sp)+,r0 | |
1059 | rts pc | |
1060 | ||
1061 | rlist: | |
1062 | clr -(sp) | |
1063 | cmpb (r3),$') | |
1064 | bne 1f | |
1065 | movb (r3)+,r0 | |
1066 | br 2f | |
1067 | 1: | |
1068 | inc (sp) | |
1069 | jsr pc,expr | |
1070 | cmp r0,$', | |
1071 | beq 1b | |
1072 | 2: | |
1073 | mov (r5)+,(r4)+ | |
1074 | mov (sp)+,(r4)+ | |
1075 | rts r5 | |
1076 | ||
1077 | / | |
1078 | / | |
1079 | / bas3 -- execution | |
1080 | ||
1081 | execute: | |
1082 | mov $estack,r3 | |
1083 | mov r3,sstack | |
1084 | jmp *(r4)+ | |
1085 | ||
1086 | _if: | |
1087 | tstf (r3)+ | |
1088 | cfcc | |
1089 | beq _tra | |
1090 | tst (r4)+ | |
1091 | jmp *(r4)+ | |
1092 | ||
1093 | _ptra: | |
1094 | mov sstack,r3 | |
1095 | ||
1096 | _tra: | |
1097 | mov (r4)+,r4 | |
1098 | jmp *(r4)+ | |
1099 | ||
1100 | _funct: | |
1101 | mov r4,-(r3) | |
1102 | mov sstack,-(r3) | |
1103 | mov r3,sstack | |
1104 | inc sublev | |
1105 | clr r0 | |
1106 | jsr pc,arg | |
1107 | tstf r0 | |
1108 | cfcc | |
1109 | bge 1f | |
1110 | jmp builtin | |
1111 | ||
1112 | _goto: | |
1113 | movf (r3),r0 | |
1114 | 1: | |
1115 | movfi r0,-(sp) | |
1116 | jsr pc,compile | |
1117 | mov (sp)+,r0 | |
1118 | jsr pc,getloc | |
1119 | mov 4(r1),r4 | |
1120 | jmp *(r4)+ | |
1121 | ||
1122 | _run: | |
1123 | jsr pc,isymtab | |
1124 | mov randx,r0 | |
1125 | jsr pc,srand | |
1126 | jsr pc,compile | |
1127 | mov $space,r4 | |
1128 | jmp *(r4)+ | |
1129 | ||
1130 | _save: / _save is a _list to the file named on the bas command | |
1131 | sys creat; argname; 666 | |
1132 | bes 1f | |
1133 | mov r0,prfile | |
1134 | br 2f | |
1135 | 1: | |
1136 | mov 1f,r0 | |
1137 | mov $1,prfile | |
1138 | jsr pc,print | |
1139 | br _done | |
1140 | 1: <Cannot create b.out\n\0>; .even | |
1141 | ||
1142 | _list: | |
1143 | mov $1,prfile | |
1144 | 2: | |
1145 | movf (r3)+,r0 | |
1146 | movfi r0,-(sp) | |
1147 | / probably vistigal?? mov r3,0f | |
1148 | movf (r3),r0 | |
1149 | movfi r0,lineno | |
1150 | 1: | |
1151 | jsr pc,nextlin | |
1152 | br 1f | |
1153 | cmp lineno,(sp) | |
1154 | bhi 1f | |
1155 | mov $line,r0 | |
1156 | jsr pc,print | |
1157 | inc lineno | |
1158 | br 1b | |
1159 | 1: | |
1160 | cmp $1,prfile | |
1161 | beq 1f | |
1162 | mov prfile,r0 | |
1163 | sys close | |
1164 | mov $1,prfile | |
1165 | 1: | |
1166 | tst (sp)+ | |
1167 | jmp *(r4)+ | |
1168 | ||
1169 | _done: | |
1170 | sys unlink; tmpf | |
1171 | sys exit | |
1172 | ||
1173 | .if scope / for plotting | |
1174 | _sdisp: | |
1175 | mov $2,r0 | |
1176 | jsr pc,drput | |
1177 | jsr pc,drxy | |
1178 | mov $1,r0 | |
1179 | jsr pc,drput | |
1180 | mov $3,r0 | |
1181 | jsr pc,drput | |
1182 | incb drflg | |
1183 | jmp *(r4)+ | |
1184 | ||
1185 | _fdisp: | |
1186 | clr r0 | |
1187 | jsr pc,drput | |
1188 | clrb drflg | |
1189 | jmp *(r4)+ | |
1190 | ||
1191 | _draw: | |
1192 | movf (r3)+,r2 | |
1193 | movf (r3)+,r1 | |
1194 | movf (r3)+,r0 | |
1195 | jsr r5,draw | |
1196 | jmp *(r4)+ | |
1197 | ||
1198 | _erase: | |
1199 | mov $1,r0 | |
1200 | jsr pc,drput | |
1201 | mov $1,r0 | |
1202 | jsr pc,drput | |
1203 | jmp *(r4)+ | |
1204 | .endif | |
1205 | ||
1206 | _print: | |
1207 | movf (r3)+,r0 | |
1208 | jsr r5,ftoa; xputc | |
1209 | jmp *(r4)+ | |
1210 | ||
1211 | _octal: | |
1212 | movf (r3)+,r0 | |
1213 | jsr r5,ftoo; xputc | |
1214 | jmp *(r4)+ | |
1215 | ||
1216 | _nline: | |
1217 | mov $'\n,r0 | |
1218 | jsr r5,xputc | |
1219 | jmp *(r4)+ | |
1220 | ||
1221 | _ascii: | |
1222 | movb (r4)+,r0 | |
1223 | cmp r0,$'" | |
1224 | beq 1f | |
1225 | jsr r5,xputc | |
1226 | br _ascii | |
1227 | 1: | |
1228 | inc r4 | |
1229 | bic $1,r4 | |
1230 | jmp *(r4)+ | |
1231 | ||
1232 | _line: | |
1233 | mov sstack,r3 | |
1234 | cmp r3,$stack+20. | |
1235 | bhi 1f | |
1236 | jsr r5,error | |
1237 | <out of space\n\0>; .even | |
1238 | 1: | |
1239 | mov (r4)+,lineno | |
1240 | jmp *(r4)+ | |
1241 | ||
1242 | _or: | |
1243 | tstf (r3)+ | |
1244 | cfcc | |
1245 | bne stone | |
1246 | tstf (r3) | |
1247 | cfcc | |
1248 | bne stone | |
1249 | br stzero | |
1250 | ||
1251 | _and: | |
1252 | tstf (r3)+ | |
1253 | cfcc | |
1254 | beq stzero | |
1255 | tstf (r3) | |
1256 | cfcc | |
1257 | beq stzero | |
1258 | br stone | |
1259 | ||
1260 | _great: | |
1261 | jsr pc,bool | |
1262 | bgt stone | |
1263 | br stzero | |
1264 | ||
1265 | _greateq: | |
1266 | jsr pc,bool | |
1267 | bge stone | |
1268 | br stzero | |
1269 | ||
1270 | _less: | |
1271 | jsr pc,bool | |
1272 | blt stone | |
1273 | br stzero | |
1274 | ||
1275 | _lesseq: | |
1276 | jsr pc,bool | |
1277 | ble stone | |
1278 | br stzero | |
1279 | ||
1280 | _noteq: | |
1281 | jsr pc,bool | |
1282 | bne stone | |
1283 | br stzero | |
1284 | ||
1285 | _equal: | |
1286 | jsr pc,bool | |
1287 | beq stone | |
1288 | ||
1289 | stzero: | |
1290 | clrf r0 | |
1291 | br advanc | |
1292 | ||
1293 | stone: | |
1294 | movf $one,r0 | |
1295 | br advanc | |
1296 | ||
1297 | _extr: | |
1298 | movf r1,r0 / dup for _and in extended rel | |
1299 | br subadv | |
1300 | ||
1301 | _asgn: | |
1302 | movf (r3)+,r0 | |
1303 | mov (r3)+,r0 | |
1304 | add $4,r0 | |
1305 | bis $1,(r0)+ | |
1306 | movf r0,(r0) | |
1307 | br subadv | |
1308 | ||
1309 | _add: | |
1310 | movf (r3)+,r0 | |
1311 | addf (r3),r0 | |
1312 | br advanc | |
1313 | ||
1314 | _sub: | |
1315 | movf (r3)+,r0 | |
1316 | negf r0 | |
1317 | addf (r3),r0 | |
1318 | br advanc | |
1319 | ||
1320 | _mult: | |
1321 | movf (r3)+,r0 | |
1322 | mulf (r3),r0 | |
1323 | br advanc | |
1324 | ||
1325 | _divid: | |
1326 | movf (r3)+,r1 | |
1327 | movf (r3),r0 | |
1328 | divf r1,r0 | |
1329 | br advanc | |
1330 | ||
1331 | _expon: | |
1332 | movf (r3)+,fr1 | |
1333 | movf (r3),fr0 | |
1334 | jsr pc,pow | |
1335 | bec advanc | |
1336 | jsr r5,error | |
1337 | <Bad exponentiation\n\0>; .even | |
1338 | ||
1339 | _neg: / unary - | |
1340 | negf r0 | |
1341 | jbr advanc | |
1342 | / end of _neg | |
1343 | ||
1344 | _intcon: | |
1345 | movif (r4)+,r0 | |
1346 | jbr subadv | |
1347 | ||
1348 | _con0: | |
1349 | clrf r0 | |
1350 | jbr subadv | |
1351 | ||
1352 | _con1: | |
1353 | movf $one,r0 | |
1354 | jbr subadv | |
1355 | ||
1356 | _const: | |
1357 | movf (r4)+,r0 | |
1358 | ||
1359 | subadv: | |
1360 | movf r0,-(r3) | |
1361 | jmp *(r4)+ | |
1362 | ||
1363 | advanc: | |
1364 | movf r0,(r3) | |
1365 | jmp *(r4)+ | |
1366 | ||
1367 | _rval: | |
1368 | jsr pc,getlv | |
1369 | br subadv | |
1370 | ||
1371 | _fori: | |
1372 | jsr pc,getlv | |
1373 | addf $one,r0 | |
1374 | movf r0,(r0) | |
1375 | br subadv | |
1376 | ||
1377 | _lval: | |
1378 | mov (r4)+,-(r3) | |
1379 | jmp *(r4)+ | |
1380 | ||
1381 | _dup: | |
1382 | movf (r3),r0 | |
1383 | br subadv | |
1384 | ||
1385 | _return: | |
1386 | dec sublev | |
1387 | bge 1f | |
1388 | jsr r5,error | |
1389 | <bad return\n\0>; .even | |
1390 | 1: | |
1391 | movf (r3),r0 | |
1392 | mov sstack,r3 | |
1393 | mov (r3)+,sstack | |
1394 | mov (r3)+,r4 | |
1395 | mov (r4)+,r0 | |
1396 | 1: | |
1397 | dec r0 | |
1398 | blt advanc | |
1399 | add $8,r3 | |
1400 | br 1b | |
1401 | ||
1402 | _subscr: | |
1403 | mov (r4),r1 | |
1404 | mpy $8.,r1 | |
1405 | add r1,r3 | |
1406 | mov r3,-(sp) | |
1407 | mov (r3),r0 | |
1408 | mov (r4)+,-(sp) | |
1409 | 1: | |
1410 | dec (sp) | |
1411 | blt 1f | |
1412 | movf -(r3),r0 | |
1413 | movfi r0,r2 | |
1414 | com r2 | |
1415 | blt 2f | |
1416 | jsr r5,error | |
1417 | <subscript out of range\n\0>; .even | |
1418 | 2: | |
1419 | mov r0,r1 | |
1420 | mov 4(r0),r0 | |
1421 | bic $1,r0 | |
1422 | 2: | |
1423 | beq 2f | |
1424 | cmp r2,(r0)+ | |
1425 | bne 3f | |
1426 | tst -(r0) | |
1427 | br 1b | |
1428 | 3: | |
1429 | mov (r0),r0 | |
1430 | br 2b | |
1431 | 2: | |
1432 | mov $symtab,r0 | |
1433 | 2: | |
1434 | tst (r0) | |
1435 | beq 2f | |
1436 | add $14.,r0 | |
1437 | br 2b | |
1438 | 2: | |
1439 | cmp r0,$esymtab-28. | |
1440 | blo 2f | |
1441 | jsr r5,error | |
1442 | <out of symbol space\n\0>; .even | |
1443 | 2: | |
1444 | cmp (r1)+,(r1)+ | |
1445 | mov r0,-(sp) | |
1446 | clr 14.(r0) | |
1447 | mov r2,(r0)+ | |
1448 | mov (r1),r2 | |
1449 | bic $1,r2 | |
1450 | mov r2,(r0)+ | |
1451 | clr (r0)+ | |
1452 | mov (sp)+,r0 | |
1453 | bic $!1,(r1) | |
1454 | bis r0,(r1) | |
1455 | br 1b | |
1456 | 1: | |
1457 | tst (sp)+ | |
1458 | mov (sp)+,r3 | |
1459 | mov r0,(r3) | |
1460 | jmp *(r4)+ | |
1461 | ||
1462 | bool: | |
1463 | movf (r3)+,r1 / r1 used in extended rel | |
1464 | cmpf (r3),r1 | |
1465 | cfcc | |
1466 | rts pc | |
1467 | ||
1468 | getlv: | |
1469 | mov (r3)+,r0 | |
1470 | add $4,r0 | |
1471 | bit $1,(r0)+ | |
1472 | bne 1f | |
1473 | jsr r5,error;<used before set\n\0>; .even | |
1474 | 1: | |
1475 | movf (r0),r0 | |
1476 | rts pc | |
1477 | ||
1478 | / | |
1479 | / | |
1480 | ||
1481 | / bas4 -- builtin functions | |
1482 | ||
1483 | builtin: | |
1484 | dec sublev | |
1485 | mov (r3)+,sstack | |
1486 | mov (r3)+,r4 | |
1487 | movfi r0,r0 | |
1488 | com r0 | |
1489 | asl r0 | |
1490 | cmp r0,$2f-1f | |
1491 | bhis 2f | |
1492 | jmp *1f(r0) | |
1493 | 1: | |
1494 | fnarg | |
1495 | fnexp | |
1496 | fnlog | |
1497 | fnsin | |
1498 | fncos | |
1499 | fnatan | |
1500 | fnrand | |
1501 | fnexpr | |
1502 | fnint | |
1503 | fnabs | |
1504 | fnsqr | |
1505 | fnlast | |
1506 | 2: | |
1507 | mov $-1,r0 | |
1508 | jsr pc,getloc / label not found diagnostic | |
1509 | ||
1510 | fnarg: | |
1511 | cmp (r4)+,$1 | |
1512 | jne narg | |
1513 | movf (r3),r0 | |
1514 | movfi r0,r0 | |
1515 | jsr pc,arg | |
1516 | br fnadvanc | |
1517 | ||
1518 | fnexp: | |
1519 | jsr r5,fnfn; exp | |
1520 | br fnadvanc | |
1521 | ||
1522 | fnlog: | |
1523 | jsr r5,fnfn; log | |
1524 | bec fnadvanc | |
1525 | jsr r5,error | |
1526 | <Bad log\n\0>; .even | |
1527 | ||
1528 | fnsin: | |
1529 | jsr r5,fnfn; sin | |
1530 | bec fnadvanc | |
1531 | jsr r5,error | |
1532 | <Bad sine\n\0>; .even | |
1533 | ||
1534 | fncos: | |
1535 | jsr r5,fnfn; cos | |
1536 | bec fnadvanc | |
1537 | jsr r5,error | |
1538 | <Bad cosine\n\0>; .even | |
1539 | ||
1540 | fnatan: | |
1541 | jsr r5,fnfn; atan | |
1542 | bec fnadvanc | |
1543 | jsr r5,error | |
1544 | <Bad arctangent\n\0>; .even | |
1545 | ||
1546 | fnrand: | |
1547 | tst (r4)+ | |
1548 | bne narg | |
1549 | jsr pc,rand | |
1550 | movif r0,r0 | |
1551 | divf $44000,r0 | |
1552 | jmp advanc | |
1553 | ||
1554 | fnexpr: | |
1555 | tst (r4)+ | |
1556 | bne narg | |
1557 | mov r3,-(sp) | |
1558 | mov r4,-(sp) | |
1559 | jsr pc,rdline | |
1560 | mov exprloc,r4 | |
1561 | mov $line,r3 | |
1562 | jsr pc,expr | |
1563 | mov $_tra,(r4)+ | |
1564 | mov (sp)+,(r4)+ | |
1565 | mov (sp)+,r3 | |
1566 | mov exprloc,r4 | |
1567 | add $8,r3 | |
1568 | jmp *(r4)+ | |
1569 | ||
1570 | fnint: | |
1571 | cmp (r4)+,$1 | |
1572 | bne narg | |
1573 | movf (r3),r0 | |
1574 | modf $one,r0 | |
1575 | movf r1,r0 | |
1576 | br fnadvanc | |
1577 | ||
1578 | fnabs: | |
1579 | cmp (r4)+,$1 | |
1580 | bne narg | |
1581 | movf (r3),r0 | |
1582 | cfcc | |
1583 | bge fnadvanc | |
1584 | negf r0 | |
1585 | br fnadvanc | |
1586 | ||
1587 | fnlast: | |
1588 | tst (r4)+ | |
1589 | bne narg | |
1590 | movf lastpr,fr0 | |
1591 | jbr advanc | |
1592 | ||
1593 | fnsqr: | |
1594 | jsr r5,fnfn; sqrt | |
1595 | bec fnadvanc | |
1596 | jsr r5,error | |
1597 | <Bad square root arg\n\0>; .even | |
1598 | fnadvanc: | |
1599 | add $8,r3 | |
1600 | jmp advanc | |
1601 | ||
1602 | narg: | |
1603 | jsr r5,error | |
1604 | <arg count\n\0>; .even | |
1605 | ||
1606 | arg: | |
1607 | tst sublev | |
1608 | beq 1f | |
1609 | mov sstack,r1 | |
1610 | sub *2(r1),r0 | |
1611 | bhi 1f | |
1612 | 2: | |
1613 | inc r0 | |
1614 | bgt 2f | |
1615 | add $8,r1 | |
1616 | br 2b | |
1617 | 2: | |
1618 | movf 4(r1),r0 | |
1619 | rts pc | |
1620 | 1: | |
1621 | jsr r5,error | |
1622 | <bad arg\n\0>; .even | |
1623 | ||
1624 | fnfn: | |
1625 | cmp (r4)+,$1 | |
1626 | bne narg | |
1627 | movf (r3),r0 | |
1628 | jsr pc,*(r5)+ | |
1629 | rts r5 | |
1630 | ||
1631 | .if scope / for plotting | |
1632 | draw: | |
1633 | tstf r2 | |
1634 | cfcc | |
1635 | bne 1f | |
1636 | movf r0,drx | |
1637 | movf r1,dry | |
1638 | rts r5 | |
1639 | 1: | |
1640 | movf r0,-(sp) | |
1641 | movf r1,-(sp) | |
1642 | mov $3,r0 | |
1643 | jsr pc,drput | |
1644 | jsr pc,drxy | |
1645 | movf (sp)+,r0 | |
1646 | movf r0,dry | |
1647 | movf (sp)+,r0 | |
1648 | movf r0,drx | |
1649 | jsr pc,drxy | |
1650 | rts r5 | |
1651 | ||
1652 | drxy: | |
1653 | movf drx,r0 | |
1654 | jsr pc,drco | |
1655 | movf dry,r0 | |
1656 | ||
1657 | drco: | |
1658 | tstf r0 | |
1659 | cfcc | |
1660 | bge 1f | |
1661 | clrf r0 | |
1662 | 1: | |
1663 | cmpf $40200,r0 / 1.0 | |
1664 | cfcc | |
1665 | bgt 1f | |
1666 | movf $40177,r0 / 1.0-eps | |
1667 | 1: | |
1668 | subf $40000,r0 / .5 | |
1669 | mulf $43200,r0 / 4096 | |
1670 | movfi r0,r0 | |
1671 | mov r0,-(sp) | |
1672 | jsr pc,drput | |
1673 | mov (sp)+,r0 | |
1674 | swab r0 | |
1675 | ||
1676 | drput: | |
1677 | movb r0,ch | |
1678 | mov drfo,r0 | |
1679 | bne 1f | |
1680 | sys open; vt; 1 | |
1681 | bec 2f | |
1682 | 4 | |
1683 | 2: | |
1684 | mov r0,drfo | |
1685 | 1: | |
1686 | sys write; ch; 1 | |
1687 | rts pc | |
1688 | ||
1689 | .endif | |
1690 | / bas4 -- old library routines | |
1691 | atoi: | |
1692 | clr r1 | |
1693 | jsr r5,nextc | |
1694 | clr -(sp) | |
1695 | cmp r0,$'- | |
1696 | bne 2f | |
1697 | inc (sp) | |
1698 | 1: | |
1699 | jsr r5,nextc | |
1700 | 2: | |
1701 | sub $'0,r0 | |
1702 | cmp r0,$9 | |
1703 | bhi 1f | |
1704 | mpy $10.,r1 | |
1705 | bcs 3f / >32k | |
1706 | add r0,r1 | |
1707 | bcs 3f / >32k | |
1708 | br 1b | |
1709 | 1: | |
1710 | add $'0,r0 | |
1711 | tst (sp)+ | |
1712 | beq 1f | |
1713 | neg r1 | |
1714 | 1: | |
1715 | rts r5 | |
1716 | 3: | |
1717 | tst (sp)+ | |
1718 | mov $'.,r0 / faking overflow | |
1719 | br 1b | |
1720 | ||
1721 | ldfps = 170100^tst | |
1722 | stfps = 170200^tst | |
1723 | atof: | |
1724 | stfps -(sp) | |
1725 | ldfps $200 | |
1726 | movf fr1,-(sp) | |
1727 | mov r1,-(sp) | |
1728 | mov r2,-(sp) | |
1729 | clr -(sp) | |
1730 | clrf fr0 | |
1731 | clr r2 | |
1732 | jsr r5,*(r5) | |
1733 | cmpb r0,$'- | |
1734 | bne 2f | |
1735 | inc (sp) | |
1736 | 1: | |
1737 | jsr r5,*(r5) | |
1738 | 2: | |
1739 | sub $'0,r0 | |
1740 | cmp r0,$9. | |
1741 | bhi 2f | |
1742 | jsr pc,dig | |
1743 | br 1b | |
1744 | inc r2 | |
1745 | br 1b | |
1746 | 2: | |
1747 | cmpb r0,$'.-'0 | |
1748 | bne 2f | |
1749 | 1: | |
1750 | jsr r5,*(r5) | |
1751 | sub $'0,r0 | |
1752 | cmp r0,$9. | |
1753 | bhi 2f | |
1754 | jsr pc,dig | |
1755 | dec r2 | |
1756 | br 1b | |
1757 | 2: | |
1758 | cmpb r0,$'e-'0 | |
1759 | bne 1f | |
1760 | jsr r5,atoi | |
1761 | sub $'0,r0 | |
1762 | add r1,r2 | |
1763 | 1: | |
1764 | movf $one,fr1 | |
1765 | mov r2,-(sp) | |
1766 | beq 2f | |
1767 | bgt 1f | |
1768 | neg r2 | |
1769 | 1: | |
1770 | cmp r2,$38. | |
1771 | blos 1f | |
1772 | clrf fr0 | |
1773 | tst (sp)+ | |
1774 | bmi out | |
1775 | movf $huge,fr0 | |
1776 | br out | |
1777 | 1: | |
1778 | mulf $ten,fr1 | |
1779 | sob r2,1b | |
1780 | 2: | |
1781 | tst (sp)+ | |
1782 | bge 1f | |
1783 | divf fr1,fr0 | |
1784 | br 2f | |
1785 | 1: | |
1786 | mulf fr1,fr0 | |
1787 | cfcc | |
1788 | bvc 2f | |
1789 | movf $huge,fr0 | |
1790 | 2: | |
1791 | out: | |
1792 | tst (sp)+ | |
1793 | beq 1f | |
1794 | negf fr0 | |
1795 | 1: | |
1796 | add $'0,r0 | |
1797 | mov (sp)+,r2 | |
1798 | mov (sp)+,r1 | |
1799 | movf (sp)+,fr1 | |
1800 | ldfps (sp)+ | |
1801 | tst (r5)+ | |
1802 | rts r5 | |
1803 | ||
1804 | dig: | |
1805 | cmpf $big,fr0 | |
1806 | cfcc | |
1807 | blt 1f | |
1808 | mulf $ten,fr0 | |
1809 | movif r0,fr1 | |
1810 | addf fr1,fr0 | |
1811 | rts pc | |
1812 | 1: | |
1813 | add $2,(sp) | |
1814 | rts pc | |
1815 | ||
1816 | one = 40200 | |
1817 | ten = 41040 | |
1818 | big = 56200 | |
1819 | huge = 77777 | |
1820 | ||
1821 | .globl _ndigits | |
1822 | .globl ecvt | |
1823 | .globl fcvt | |
1824 | ||
1825 | ftoa: | |
1826 | movf fr0,lastpr | |
1827 | jsr pc,ecvt | |
1828 | mov r0,bufptr | |
1829 | tstb r1 | |
1830 | beq 1f | |
1831 | mov $'-,r0 | |
1832 | jsr r5,*(r5) | |
1833 | 1: | |
1834 | cmp r3,$-2 | |
1835 | blt econ | |
1836 | cmp r2,$-5 | |
1837 | ble econ | |
1838 | cmp r2,$6 | |
1839 | bgt econ | |
1840 | jsr pc,cout | |
1841 | tst (r5)+ | |
1842 | rts r5 | |
1843 | ||
1844 | econ: | |
1845 | mov r2,-(sp) | |
1846 | mov $1,r2 | |
1847 | jsr pc,cout | |
1848 | mov $'e,r0 | |
1849 | jsr r5,*(r5) | |
1850 | mov (sp)+,r0 | |
1851 | dec r0 | |
1852 | jmp itoa | |
1853 | ||
1854 | cout: | |
1855 | mov bufptr,r1 | |
1856 | add _ndigits,r1 | |
1857 | mov r2,-(sp) | |
1858 | add bufptr,r2 | |
1859 | 1: | |
1860 | cmp r1,r2 | |
1861 | blos 1f | |
1862 | cmpb -(r1),$'0 | |
1863 | beq 1b | |
1864 | inc r1 | |
1865 | 1: | |
1866 | mov (sp)+,r2 | |
1867 | bge 2f | |
1868 | mov $'.,r0 | |
1869 | jsr r5,*(r5) | |
1870 | 1: | |
1871 | mov $'0,r0 | |
1872 | jsr r5,*(r5) | |
1873 | inc r2 | |
1874 | blt 1b | |
1875 | dec r2 | |
1876 | 2: | |
1877 | mov r2,-(sp) | |
1878 | mov bufptr,r2 | |
1879 | 1: | |
1880 | cmp r2,r1 | |
1881 | bhis 1f | |
1882 | tst (sp) | |
1883 | bne 2f | |
1884 | mov $'.,r0 | |
1885 | jsr r5,*(r5) | |
1886 | 2: | |
1887 | dec (sp) | |
1888 | movb (r2)+,r0 | |
1889 | jsr r5,*(r5) | |
1890 | br 1b | |
1891 | 1: | |
1892 | tst (sp)+ | |
1893 | rts pc | |
1894 | ||
1895 | .bss | |
1896 | bufptr: .=.+2 | |
1897 | .text | |
1898 | ||
1899 | ftoo: | |
1900 | stfps -(sp) | |
1901 | ldfps $200 | |
1902 | mov r1,-(sp) | |
1903 | mov r2,-(sp) | |
1904 | mov $buf,r1 | |
1905 | movf fr0,(r1)+ | |
1906 | mov $buf,r2 | |
1907 | br 2f | |
1908 | 1: | |
1909 | cmp r2,r1 | |
1910 | bhis 1f | |
1911 | mov $';,r0 | |
1912 | jsr r5,*(r5) | |
1913 | 2: | |
1914 | mov (r2)+,r0 | |
1915 | jsr pc,oct | |
1916 | br 1b | |
1917 | 1: | |
1918 | mov $'\n,r0 | |
1919 | jsr pc,*(r5)+ | |
1920 | ldfps (sp)+ | |
1921 | rts r5 | |
1922 | ||
1923 | oct: | |
1924 | mov r0,x+2 | |
1925 | setl | |
1926 | movif x,fr0 | |
1927 | mulf $small,fr0 | |
1928 | seti | |
1929 | mov $6.,-(sp) | |
1930 | 1: | |
1931 | modf $eight,fr0 | |
1932 | movfi fr1,r0 | |
1933 | add $'0,r0 | |
1934 | jsr r5,*(r5) | |
1935 | dec (sp) | |
1936 | bne 1b | |
1937 | tst (sp)+ | |
1938 | rts pc | |
1939 | ||
1940 | eight = 41000 | |
1941 | small = 33600 | |
1942 | .bss | |
1943 | buf: .=.+8 | |
1944 | x: .=.+4 | |
1945 | .text | |
1946 | ||
1947 | itoa: | |
1948 | mov r1,-(sp) | |
1949 | mov r0,r1 | |
1950 | bge 1f | |
1951 | neg r1 | |
1952 | mov $'-,r0 | |
1953 | jsr r5,*(r5) | |
1954 | 1: | |
1955 | jsr pc,1f | |
1956 | mov (sp)+,r1 | |
1957 | tst (r5)+ | |
1958 | rts r5 | |
1959 | ||
1960 | 1: | |
1961 | clr r0 | |
1962 | dvd $10.,r0 | |
1963 | mov r1,-(sp) | |
1964 | mov r0,r1 | |
1965 | beq 1f | |
1966 | jsr pc,1b | |
1967 | 1: | |
1968 | mov (sp)+,r0 | |
1969 | add $'0,r0 | |
1970 | jsr r5,*(r5) | |
1971 | rts pc | |
1972 | / bas -- BASIC | |
1973 | / new command "dump" which dumps symbol table values by name | |
1974 | / R. Haight | |
1975 | / | |
1976 | _dump: | |
1977 | mov r4,-(sp) | |
1978 | mov $12.*14.+symtab-14.,r4 | |
1979 | 1: | |
1980 | add $14.,r4 | |
1981 | tst (r4) | |
1982 | beq 1f | |
1983 | bit $1,4(r4) | |
1984 | beq 1b | |
1985 | jsr pc,dmp1 | |
1986 | mov $'=,r0 | |
1987 | jsr r5,xputc | |
1988 | movf 6(r4),r0 | |
1989 | jsr r5,ftoa; xputc | |
1990 | mov $'\n,r0 | |
1991 | jsr r5,xputc | |
1992 | br 1b | |
1993 | 1: | |
1994 | mov (sp)+,r4 | |
1995 | jmp *(r4)+ | |
1996 | ||
1997 | dmp1: | |
1998 | tst (r4) | |
1999 | blt 1f | |
2000 | mov (r4),nameb | |
2001 | mov 2(r4),nameb+2 | |
2002 | mov $nameb,r0 | |
2003 | jsr pc,print | |
2004 | rts pc | |
2005 | 1: | |
2006 | mov r4,-(sp) | |
2007 | mov $symtab-14.,r4 | |
2008 | 1: | |
2009 | add $14.,r4 | |
2010 | tst (r4) | |
2011 | beq 1f | |
2012 | mov 4(r4),r0 | |
2013 | bic $1,r0 | |
2014 | 2: | |
2015 | beq 1b | |
2016 | cmp r0,(sp) | |
2017 | beq 2f | |
2018 | mov 2(r0),r0 | |
2019 | br 2b | |
2020 | 2: | |
2021 | jsr pc,dmp1 | |
2022 | mov $'[,r0 | |
2023 | jsr r5,xputc | |
2024 | mov *(sp),r0 | |
2025 | com r0 | |
2026 | movif r0,r0 | |
2027 | jsr r5,ftoa; xputc | |
2028 | mov $'],r0 | |
2029 | jsr r5,xputc | |
2030 | 1: | |
2031 | mov (sp)+,r4 | |
2032 | rts pc | |
2033 | / | |
2034 | / | |
2035 | ||
2036 | / basx -- data | |
2037 | ||
2038 | one = 40200 | |
2039 | ||
2040 | .data | |
2041 | ||
2042 | _ndigits:10. | |
2043 | tmpf: </tmp/btma\0> | |
2044 | argname: <b.out\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0> | |
2045 | vt: </dev/vt0\0> | |
2046 | .even | |
2047 | pname: <\0\0\0\0\0\0> | |
2048 | .even | |
2049 | ||
2050 | resnam: | |
2051 | <list> | |
2052 | <done> | |
2053 | <q\0\0\0> | |
2054 | <run\0> | |
2055 | <prin> | |
2056 | <prom> / prompt is like print without \n (cr) | |
2057 | <if\0\0> | |
2058 | <goto> | |
2059 | <retu> | |
2060 | <for\0> | |
2061 | <next> | |
2062 | <octa> | |
2063 | <save> | |
2064 | <dump> | |
2065 | <fi\0\0> | |
2066 | <else> | |
2067 | <edit> | |
2068 | <comm> / comment | |
2069 | .if scope / for plotting | |
2070 | <disp> | |
2071 | <draw> | |
2072 | <eras> | |
2073 | .endif | |
2074 | eresnam: | |
2075 | ||
2076 | symtnam: | |
2077 | <arg\0> | |
2078 | <exp\0> | |
2079 | <log\0> | |
2080 | <sin\0> | |
2081 | <cos\0> | |
2082 | <atn\0> | |
2083 | <rnd\0> | |
2084 | <expr> | |
2085 | <int\0> | |
2086 | <abs\0> | |
2087 | <sqr\0> | |
2088 | <last> | |
2089 | esymtnam: | |
2090 | ||
2091 | / indirect sys calls: | |
2092 | sysseek: sys lseek; 0; seekx: 0; 0 | |
2093 | syswrit: sys write; wbuf: 0; wlen: 0 | |
2094 | sysread: sys read; rbuf: 0; rlen: 0 | |
2095 | sysopen: sys open; ofile: 0 ; omode: 0 | |
2096 | syscreat: sys creat; cfile: 0; cmode: 0 | |
2097 | .bss | |
2098 | drx: .=.+8 | |
2099 | dry: .=.+8 | |
2100 | drfo: .=.+2 | |
2101 | ch: .=.+2 | |
2102 | drflg: .=.+2 | |
2103 | randx: .=.+2 | |
2104 | gsp: .=.+2 | |
2105 | forp: .=.+2 | |
2106 | exprloc:.=.+2 | |
2107 | sstack: .=.+2 | |
2108 | sublev: .=.+2 | |
2109 | val: .=.+2 | |
2110 | splimit: .=.+2 / statement size limit | |
2111 | iflev: .=.+20. / nested if compile stack: 10 deep | |
2112 | ifp: .=.+2 / current pointer to iflev | |
2113 | line: .=.+100. | |
2114 | prfile: .=.+2 / output from _list or _save | |
2115 | tfi: .=.+2 / input file | |
2116 | lastpr: .=.+8 / last printed number | |
2117 | func: .=.+2 / alternate functions, eg: _list or _save | |
2118 | seeka: .=.+2 / seek offset 1 | |
2119 | lineno: .=.+2 | |
2120 | nameb: .=.+4 | |
2121 | tfo: .=.+2 | |
2122 | symtab: .=.+2800.; esymtab: / symbol=7wds; symtab for 200 | |
2123 | space: .=.+8000.; espace: / code space | |
2124 | exline: .=.+1000.; eexline: / line execute space | |
2125 | lintab: .=.+1800.; elintab: / 3wds per statement = 300 stmts | |
2126 | stack: .=.+800.; estack: | |
2127 | ||
2128 | iobuf: fi: .=.+518. / should be acquired?? |