Commit | Line | Data |
---|---|---|
5670e879 CH |
1 | /* |
2 | * functions to help pi put out | |
3 | * polish postfix binary portable c compiler intermediate code | |
4 | * thereby becoming the portable pascal compiler | |
5 | */ | |
6 | ||
7 | #include "whoami" | |
8 | #ifdef PPC | |
9 | #include "0.h" | |
10 | #include "opcode.h" | |
11 | #include "ppc.h" | |
12 | ||
13 | /* | |
14 | * extract from pi's format | |
15 | */ | |
16 | #define FROMPI( nth , word ) ( ( ( word ) >> ( (nth) * 8 ) ) & 0377 ) | |
17 | ||
18 | /* | |
19 | * mash into f77's format | |
20 | */ | |
21 | #define TOF77( fop,val,rest ) ( ( ( (rest) & 0177777 ) << 16 ) \ | |
22 | | ( ( (val) & 0377 ) << 8 ) \ | |
23 | | ( (fop) & 0377 ) ) | |
24 | \f | |
25 | /* | |
26 | * this version of put generates stephen c johnson intermediate code | |
27 | * as modified for the fortran77 compiler, to be both | |
28 | * binary and postfix. | |
29 | * it still uses the address of its argument | |
30 | * as the address of its (variable length) argument list. | |
31 | * the name is changed by a #define for the ctags program. | |
32 | */ | |
33 | #define ppcput put | |
34 | ppcput( arglist ) | |
35 | { | |
36 | register int *argp; | |
37 | int narg; | |
38 | int op; | |
39 | int subop; | |
40 | ||
41 | /* | |
42 | * are we not generating code? | |
43 | */ | |
44 | if ( cgenflg ) | |
45 | return; | |
46 | argp = &arglist; | |
47 | narg = *argp++; | |
48 | op = FROMPI( 0 , *argp ); | |
49 | subop = FROMPI( 1 , *argp ); | |
50 | putprintf( "# [put] op = 0%o subop = %d argp[1] = %d" | |
51 | , op , subop , argp[1] ); | |
52 | switch( op ) { | |
53 | default: | |
54 | /* | |
55 | * panic( "[put] op" ); | |
56 | */ | |
57 | putprintf( "# [put] op ignored" ); | |
58 | break; | |
59 | case O_LV: | |
60 | putLV( subop >> 1 , argp[1] , P2PTR | P2INT ); | |
61 | break; | |
62 | case O_RV1: | |
63 | case O_RV2: | |
64 | case O_RV4: | |
65 | case O_RV8: | |
66 | putRV( op , subop >> 1 , argp[1] , 0 ); | |
67 | break; | |
68 | case O_RV: | |
69 | putRV( op , subop >> 1 , argp[1] , argp[2] ); | |
70 | break; | |
71 | case O_CON1: | |
72 | case O_CON2: | |
73 | case O_CON4: | |
74 | putCON( op , argp[1] ); | |
75 | break; | |
76 | case O_CON8: | |
77 | putCON( op , *( (double *) &argp[1] ) ); | |
78 | break; | |
79 | case O_AS21: | |
80 | case O_AS41: | |
81 | case O_AS2: | |
82 | case O_AS42: | |
83 | case O_AS24: | |
84 | case O_AS4: | |
85 | case O_AS28: | |
86 | case O_AS48: | |
87 | case O_AS8: | |
88 | putAS( op , 0 ); | |
89 | break; | |
90 | case O_AS: | |
91 | putAS( op , argp[1] ); | |
92 | break; | |
93 | case O_ADD2: | |
94 | case O_ADD42: | |
95 | case O_ADD82: | |
96 | case O_ADD24: | |
97 | case O_ADD4: | |
98 | case O_ADD84: | |
99 | case O_ADD28: | |
100 | case O_ADD48: | |
101 | case O_ADD8: | |
102 | putADD( op ); | |
103 | break; | |
104 | case O_SUB2: | |
105 | case O_SUB42: | |
106 | case O_SUB82: | |
107 | case O_SUB24: | |
108 | case O_SUB4: | |
109 | case O_SUB84: | |
110 | case O_SUB28: | |
111 | case O_SUB48: | |
112 | case O_SUB8: | |
113 | putSUB( op ); | |
114 | break; | |
115 | case O_MUL2: | |
116 | case O_MUL42: | |
117 | case O_MUL82: | |
118 | case O_MUL24: | |
119 | case O_MUL4: | |
120 | case O_MUL84: | |
121 | case O_MUL28: | |
122 | case O_MUL48: | |
123 | case O_MUL8: | |
124 | putMUL( op ); | |
125 | break; | |
126 | case O_DVD2: | |
127 | case O_DVD42: | |
128 | case O_DVD82: | |
129 | case O_DVD24: | |
130 | case O_DVD4: | |
131 | case O_DVD84: | |
132 | case O_DVD28: | |
133 | case O_DVD48: | |
134 | case O_DVD8: | |
135 | putDVD( op ); | |
136 | break; | |
137 | case O_DIV2: | |
138 | case O_DIV42: | |
139 | case O_DIV24: | |
140 | case O_DIV4: | |
141 | putDIV( op ); | |
142 | break; | |
143 | case O_MOD2: | |
144 | case O_MOD42: | |
145 | case O_MOD24: | |
146 | case O_MOD4: | |
147 | putMOD( op ); | |
148 | break; | |
149 | } | |
150 | } | |
151 | ||
152 | \f | |
153 | putLV( level , offset , type ) | |
154 | int level; | |
155 | int offset; | |
156 | int type; | |
157 | { | |
158 | if ( level == cbn ) { | |
159 | putleaf( P2REG , 0 , P2FP , P2PTR | P2INT , 0 ); | |
160 | } else { | |
161 | putleaf( P2NAME , level * sizeof (int *) , 0 , P2PTR | P2INT | |
162 | , "_display" ); | |
163 | } | |
164 | putleaf( P2ICON , offset , 0 , P2INT , 0 ); | |
165 | putop( P2PLUS , P2PTR | P2INT ); | |
166 | putop( P2UNARY P2MUL , type ); | |
167 | } | |
168 | ||
169 | /* | |
170 | * an operand, given its level and offset, | |
171 | * and its length if it is other than 1, 2, 4, or 8 | |
172 | */ | |
173 | putRV( op , level , offset , length ) | |
174 | int op; | |
175 | int level; | |
176 | int offset; | |
177 | int length; | |
178 | { | |
179 | int type; | |
180 | ||
181 | switch ( op ) { | |
182 | default: | |
183 | panic( "putRV" ); | |
184 | case O_RV: | |
185 | /* | |
186 | * no structures, yet | |
187 | */ | |
188 | panic( "putRV O_RV" ); | |
189 | case O_RV1: | |
190 | type = P2CHAR; | |
191 | break; | |
192 | case O_RV2: | |
193 | type = P2SHORT; | |
194 | break; | |
195 | case O_RV4: | |
196 | type = P2LONG; | |
197 | break; | |
198 | case O_RV8: | |
199 | type = P2DOUBLE; | |
200 | break; | |
201 | } | |
202 | putLV( level , offset , type ); | |
203 | } | |
204 | ||
205 | putCON( op , value ) | |
206 | int op; | |
207 | int value; | |
208 | { | |
209 | int type; | |
210 | ||
211 | switch( op ) { | |
212 | case O_CON1: | |
213 | type = P2CHAR; | |
214 | break; | |
215 | case O_CON2: | |
216 | type = P2SHORT; | |
217 | break; | |
218 | case O_CON4: | |
219 | type = P2LONG; | |
220 | break; | |
221 | case O_CON8: | |
222 | type = P2DOUBLE; | |
223 | break; | |
224 | } | |
225 | if ( type != P2DOUBLE ) { | |
226 | putleaf( P2ICON , value , 0 , type , 0 ); | |
227 | } else { | |
228 | char name[8]; | |
229 | ||
230 | sprintf( name , "D%d" , newlabel() ); | |
231 | puttext( " .data" ); | |
232 | puttext( " .align 2" ); | |
233 | putprintf( "%s:" , name ); | |
234 | putprintf( " .double 0d%.20e" , *( (double *) &value ) ); | |
235 | puttext( " .text" ); | |
236 | puttext( " .align 1" ); | |
237 | putleaf( P2NAME , 0 , 0 , P2DOUBLE , name ); | |
238 | } | |
239 | } | |
240 | ||
241 | /* | |
242 | * generate an assignment | |
243 | * given the length of the destination if not 1, 2, 4, or 8 | |
244 | */ | |
245 | putAS( op , length ) | |
246 | int op; | |
247 | int length; | |
248 | { | |
249 | int type; | |
250 | ||
251 | switch ( op ) { | |
252 | default: | |
253 | panic( "[putAS]" ); | |
254 | case O_AS: | |
255 | /* | |
256 | * no structures, yet | |
257 | */ | |
258 | panic( "[putAS] O_AS" ); | |
259 | case O_AS21: | |
260 | case O_AS41: | |
261 | type = P2CHAR; | |
262 | break; | |
263 | case O_AS2: | |
264 | case O_AS42: | |
265 | type = P2SHORT; | |
266 | break; | |
267 | case O_AS24: | |
268 | case O_AS4: | |
269 | type = P2LONG; | |
270 | break; | |
271 | case O_AS28: | |
272 | case O_AS48: | |
273 | case O_AS8: | |
274 | type = P2DOUBLE; | |
275 | break; | |
276 | } | |
277 | putop( P2ASSIGN , type ); | |
278 | } | |
279 | ||
280 | /* | |
281 | * the various additions | |
282 | */ | |
283 | putADD( op ) | |
284 | int op; | |
285 | { | |
286 | int type; | |
287 | ||
288 | switch ( op ) { | |
289 | case O_ADD2: | |
290 | case O_ADD42: | |
291 | case O_ADD82: | |
292 | type = P2SHORT; | |
293 | break; | |
294 | case O_ADD24: | |
295 | case O_ADD4: | |
296 | case O_ADD84: | |
297 | type = P2LONG; | |
298 | break; | |
299 | case O_ADD28: | |
300 | case O_ADD48: | |
301 | case O_ADD8: | |
302 | type = P2DOUBLE; | |
303 | break; | |
304 | } | |
305 | putop( P2PLUS , type ); | |
306 | } | |
307 | ||
308 | /* | |
309 | * the various subtractions | |
310 | */ | |
311 | putSUB( op ) | |
312 | int op; | |
313 | { | |
314 | int type; | |
315 | ||
316 | switch ( op ) { | |
317 | case O_SUB2: | |
318 | case O_SUB42: | |
319 | case O_SUB82: | |
320 | type = P2SHORT; | |
321 | break; | |
322 | case O_SUB24: | |
323 | case O_SUB4: | |
324 | case O_SUB84: | |
325 | type = P2LONG; | |
326 | break; | |
327 | case O_SUB28: | |
328 | case O_SUB48: | |
329 | case O_SUB8: | |
330 | type = P2DOUBLE; | |
331 | break; | |
332 | } | |
333 | putop( P2MINUS , type ); | |
334 | } | |
335 | ||
336 | /* | |
337 | * the various multiplications | |
338 | */ | |
339 | putMUL( op ) | |
340 | int op; | |
341 | { | |
342 | int type; | |
343 | ||
344 | switch ( op ) { | |
345 | case O_MUL2: | |
346 | case O_MUL42: | |
347 | case O_MUL82: | |
348 | type = P2SHORT; | |
349 | break; | |
350 | case O_MUL24: | |
351 | case O_MUL4: | |
352 | case O_MUL84: | |
353 | type = P2LONG; | |
354 | break; | |
355 | case O_MUL28: | |
356 | case O_MUL48: | |
357 | case O_MUL8: | |
358 | type = P2DOUBLE; | |
359 | break; | |
360 | } | |
361 | putop( P2MUL , type ); | |
362 | } | |
363 | ||
364 | /* | |
365 | * the various divisions (floating results) | |
366 | */ | |
367 | putDVD( op ) | |
368 | int op; | |
369 | { | |
370 | int type; | |
371 | ||
372 | switch ( op ) { | |
373 | case O_DVD2: | |
374 | case O_DVD42: | |
375 | case O_DVD82: | |
376 | type = P2SHORT; | |
377 | break; | |
378 | case O_DVD24: | |
379 | case O_DVD4: | |
380 | case O_DVD84: | |
381 | type = P2LONG; | |
382 | break; | |
383 | case O_DVD28: | |
384 | case O_DVD48: | |
385 | case O_DVD8: | |
386 | type = P2DOUBLE; | |
387 | break; | |
388 | } | |
389 | /* | |
390 | * convert the right operand to a double to force floating result | |
391 | * putop( P2SCONV , P2DOUBLE ); | |
392 | * unfortunately, this doesn't work, and both operands have to | |
393 | * be converted, and it's too late to get the left one. (sigh). | |
394 | * that would work if the left operand were already a double, | |
395 | * but for now ... | |
396 | */ | |
397 | if ( op != O_DVD8 ) | |
398 | panic( "[putDVD]" ); | |
399 | putop( P2DIV , type ); | |
400 | } | |
401 | ||
402 | /* | |
403 | * the various DIVs (truncated integer results) | |
404 | */ | |
405 | putDIV( op ) | |
406 | int op; | |
407 | { | |
408 | int type; | |
409 | ||
410 | switch ( op ) { | |
411 | case O_DIV2: | |
412 | case O_DIV42: | |
413 | type = P2SHORT; | |
414 | break; | |
415 | case O_DIV24: | |
416 | case O_DIV4: | |
417 | type = P2LONG; | |
418 | break; | |
419 | } | |
420 | putop( P2DIV , type ); | |
421 | } | |
422 | ||
423 | /* | |
424 | * the various MODs (truncated integer results) | |
425 | */ | |
426 | putMOD( op ) | |
427 | int op; | |
428 | { | |
429 | int type; | |
430 | ||
431 | switch ( op ) { | |
432 | case O_MOD2: | |
433 | case O_MOD42: | |
434 | type = P2SHORT; | |
435 | break; | |
436 | case O_MOD24: | |
437 | case O_MOD4: | |
438 | type = P2LONG; | |
439 | break; | |
440 | } | |
441 | putop( P2MOD , type ); | |
442 | } | |
443 | ||
444 | \f | |
445 | /* | |
446 | * this returns a unique integer to be made into a label | |
447 | */ | |
448 | int | |
449 | newlabel() | |
450 | { | |
451 | static lastlabel = 0; | |
452 | ||
453 | return ++lastlabel; | |
454 | } | |
455 | ||
456 | /* | |
457 | * to round string lengths up to 0 mod 4 | |
458 | */ | |
459 | str4len( string ) | |
460 | char *string; | |
461 | { | |
462 | ||
463 | return ( ( strlen( string ) + 3 ) / 4 ); | |
464 | } | |
465 | ||
466 | \f | |
467 | /* | |
468 | * emits an ftext operator and a string to the ppcstream | |
469 | */ | |
470 | puttext( string ) | |
471 | char *string; | |
472 | { | |
473 | int length = str4len( string ); | |
474 | ||
475 | emitword( TOF77( P2FTEXT , length , 0 ) ); | |
476 | # ifdef DEBUG | |
477 | if ( ppcdebug ) { | |
478 | fprintf( ppcdstream , "P2FTEXT | %d | 0\n" , length ); | |
479 | } | |
480 | # endif | |
481 | emitstring( string ); | |
482 | } | |
483 | ||
484 | /* | |
485 | * puts out formatted text to the ppcstream. | |
486 | * none of arg1 .. arg5 need be present. | |
487 | * and you can add more if you need them. | |
488 | */ | |
489 | /* VARARGS */ | |
490 | putprintf( format , arg1 , arg2 , arg3 , arg4 , arg5 ) | |
491 | char *format; | |
492 | { | |
493 | char buffer[128]; | |
494 | ||
495 | sprintf( buffer , format , arg1 , arg2 , arg3 , arg4 , arg5 ); | |
496 | puttext( buffer ); | |
497 | } | |
498 | ||
499 | /* | |
500 | * emit a left bracket operator to ppcstream | |
501 | * with function number, the maximum temp register, and total locals | |
502 | * from globals ftnno and sizes[ cbn ] | |
503 | * until i figure out how to use them, regs 0 .. 11 are free. | |
504 | * one idea for one reg is to save the display pointer on block entry | |
505 | */ | |
506 | putlbracket() | |
507 | { | |
508 | # define MAXTP2REG 11 | |
509 | # define BITSPERBYTE 8 | |
510 | ||
511 | emitword( TOF77( P2FLBRAC , MAXTP2REG , ftnno ) ); | |
512 | emitword( BITSPERBYTE * -sizes[ cbn ].om_off ); | |
513 | # ifdef DEBUG | |
514 | if ( ppcdebug ) { | |
515 | fprintf( ppcdstream , "P2FLBRAC | %d | %d\n" , MAXTP2REG , ftnno ); | |
516 | fprintf( ppcdstream , "%d\n" | |
517 | , BITSPERBYTE * -sizes[ cbn ].om_off ); | |
518 | } | |
519 | # endif | |
520 | } | |
521 | ||
522 | /* | |
523 | * emit a right bracket operator | |
524 | * which for the binary (fortran) interface | |
525 | * doesn't have any (label) arguments, | |
526 | * it just forces the stack allocate and register mask | |
527 | */ | |
528 | putrbracket() | |
529 | { | |
530 | ||
531 | emitword( P2FRBRAC ); | |
532 | # ifdef DEBUG | |
533 | if ( ppcdebug ) { | |
534 | fprintf( ppcdstream , "P2FRBRAC\n" ); | |
535 | } | |
536 | # endif | |
537 | } | |
538 | ||
539 | /* | |
540 | * emit an eof operator | |
541 | */ | |
542 | puteof() | |
543 | { | |
544 | ||
545 | emitword( P2FEOF ); | |
546 | # ifdef DEBUG | |
547 | if ( ppcdebug ) { | |
548 | fprintf( ppcdstream , "P2FEOF\n" ); | |
549 | } | |
550 | # endif | |
551 | } | |
552 | ||
553 | /* | |
554 | * emit a dot operator, | |
555 | * with a source file line number and name | |
556 | * from globals filename and line | |
557 | */ | |
558 | putexpr() | |
559 | { | |
560 | int length = str4len( filename ); | |
561 | ||
562 | emitword( TOF77( P2FEXPR , length , line ) ); | |
563 | # ifdef DEBUG | |
564 | if ( ppcdebug ) { | |
565 | fprintf( ppcdstream , "P2FEXPR | %d | %d\n" , length , line ); | |
566 | } | |
567 | # endif | |
568 | emitstring( filename ); | |
569 | } | |
570 | ||
571 | /* | |
572 | * put out a leaf node | |
573 | */ | |
574 | putleaf( op , lval , rval , type , name ) | |
575 | int op; | |
576 | int lval; | |
577 | int rval; | |
578 | int type; | |
579 | char *name; | |
580 | { | |
581 | switch ( op ) { | |
582 | default: | |
583 | panic( "[putleaf]" ); | |
584 | case P2ICON: | |
585 | emitword( TOF77( P2ICON , name != NIL , type ) ); | |
586 | emitword( lval ); | |
587 | # ifdef DEBUG | |
588 | if ( ppcdebug ) { | |
589 | fprintf( ppcdstream , "P2ICON | %d | %d\n" | |
590 | , name != NIL , type ); | |
591 | fprintf( ppcdstream , "%d\n" , lval ); | |
592 | } | |
593 | # endif | |
594 | if ( name ) | |
595 | emitname( name ); | |
596 | break; | |
597 | case P2NAME: | |
598 | emitword( TOF77( P2NAME , lval != 0 , type ) ); | |
599 | if ( lval ) | |
600 | emitword( lval ); | |
601 | # ifdef DEBUG | |
602 | if ( ppcdebug ) { | |
603 | fprintf( ppcdstream , "P2NAME | %d | %d\n" | |
604 | , lval != 0 , type ); | |
605 | if ( lval ) | |
606 | fprintf( ppcdstream , "%d\n" , lval ); | |
607 | } | |
608 | # endif | |
609 | emitname( name ); | |
610 | break; | |
611 | case P2REG: | |
612 | emitword( TOF77( P2REG , rval , type ) ); | |
613 | # ifdef DEBUG | |
614 | if ( ppcdebug ) { | |
615 | fprintf( ppcdstream , "P2REG | %d | %d\n" , rval , type ); | |
616 | } | |
617 | # endif | |
618 | break; | |
619 | } | |
620 | } | |
621 | ||
622 | /* | |
623 | * put a typed operator to the ppcstream | |
624 | */ | |
625 | putop( op , type ) | |
626 | int op; | |
627 | int type; | |
628 | { | |
629 | ||
630 | emitword( TOF77( op , 0 , type ) ); | |
631 | # ifdef DEBUG | |
632 | if ( ppcdebug ) { | |
633 | fprintf( ppcdstream , "%d | 0 | %d\n" , op , type ); | |
634 | } | |
635 | # endif | |
636 | } | |
637 | ||
638 | \f | |
639 | /* | |
640 | * puts a long word on the ppcstream | |
641 | */ | |
642 | emitword( word ) | |
643 | long word; | |
644 | { | |
645 | ||
646 | putw( word , ppcstream ); | |
647 | }; | |
648 | ||
649 | /* | |
650 | * put a length 0 mod 4 null padded string onto the ppcstream | |
651 | * this would use | |
652 | * fprintf( ppcstream , "%*s" , -str4len( string ) , string ) | |
653 | * except that doesn't work, and also it wants to be padded with nulls. | |
654 | */ | |
655 | emitstring( string ) | |
656 | char *string; | |
657 | { | |
658 | int slen = strlen( string ); | |
659 | int wlen = ( slen + 3 ) / 4; | |
660 | int plen = ( wlen * 4 ) - slen; | |
661 | char *cp; | |
662 | int p; | |
663 | ||
664 | for ( cp = string ; *cp ; cp++ ) | |
665 | putc( *cp , ppcstream ); | |
666 | for ( p = 1 ; p <= plen ; p++ ) | |
667 | putc( '\0' , ppcstream ); | |
668 | # ifdef DEBUG | |
669 | if ( ppcdebug ) { | |
670 | fprintf( ppcdstream , "\"%s" , string ); | |
671 | for ( p = 1 ; p <= plen ; p++ ) | |
672 | fprintf( ppcdstream , "\\0" ); | |
673 | fprintf( ppcdstream , "\"\n" ); | |
674 | } | |
675 | # endif | |
676 | } | |
677 | ||
678 | /* | |
679 | * puts a blank-padded 8 character name on the ppcstream | |
680 | */ | |
681 | emitname( name ) | |
682 | char *name; | |
683 | { | |
684 | ||
685 | fprintf( ppcstream , "%-8.8s" , name ); | |
686 | # ifdef DEBUG | |
687 | if ( ppcdebug ) { | |
688 | fprintf( ppcdstream , "<%-8.8s>\n" , name ); | |
689 | } | |
690 | # endif | |
691 | } | |
692 | ||
693 | #endif PPC |