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[/] [thor/] [trunk/] [FT64v5/] [software/] [AS64/] [source/] [FISA64.cpp] - Blame information for rev 48

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1 48 robfinch 
// ============================================================================
2 
//        __
3 
//   \\__/ o\    (C) 2014  Robert Finch, Stratford
4 
//    \  __ /    All rights reserved.
5 
//     \/_//     robfinch<remove>@finitron.ca
6 
//       ||
7 
//
8 
// A64 - Assembler
9 
//  - 64 bit CPU
10 
//
11 
// This source file is free software: you can redistribute it and/or modify
12 
// it under the terms of the GNU Lesser General Public License as published
13 
// by the Free Software Foundation, either version 3 of the License, or
14 
// (at your option) any later version.
15 
//
16 
// This source file is distributed in the hope that it will be useful,
17 
// but WITHOUT ANY WARRANTY; without even the implied warranty of
18 
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 
// GNU General Public License for more details.
20 
//
21 
// You should have received a copy of the GNU General Public License
22 
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
23 
//
24 
// ============================================================================
25 
//
26 
#include "stdafx.h"
27 
 
28 
#define BCC(x)       (((x) << 12)|0x38)
29 
 
30 
// Fixup types
31 
#define FUT_C15       1
32 
#define FUT_C40       2
33 
#define FUT_C64       3
34 
#define FUT_R27       4
35 
 
36 
 
37 
static void emitAlignedCode(int cd);
38 
static void process_shifti(int oc);
39 
static void ProcessEOL(int opt);
40 
 
41 
extern int first_rodata;
42 
extern int first_data;
43 
extern int first_bss;
44 
static int64_t ca;
45 
extern int isInitializationData;
46 
extern int use_gp;
47 
 
48 
// This structure not used.
49 
typedef struct tagInsn
50 
{
51 
    union {
52 
        struct {
53 
            unsigned int opcode : 7;
54 
            unsigned int Ra : 5;
55 
            unsigned int Rt : 5;
56 
            unsigned int imm : 15;
57 
        } ri;
58 
        struct {
59 
            unsigned int opcode : 7;
60 
            unsigned int Ra : 5;
61 
            unsigned int Rt : 5;
62 
            unsigned int Rb : 5;
63 
            unsigned int resv : 3;
64 
            unsigned int funct : 7;
65 
        } rr;
66 
    };
67 
};
68 
 
69 
// ----------------------------------------------------------------------------
70 
// Return the register number or -1 if not a register.
71 
// Parses pretty register names like SP or BP in addition to r1,r2,etc.
72 
// ----------------------------------------------------------------------------
73 
 
74 
static int getRegisterX()
75 
{
76 
    int reg;
77 
 
78 
    while(isspace(*inptr)) inptr++;
79 
    switch(*inptr) {
80 
    case 'r': case 'R':
81 
         if (isdigit(inptr[1])) {
82 
             reg = inptr[1]-'0';
83 
             if (isdigit(inptr[2])) {
84 
                 reg = 10 * reg + (inptr[2]-'0');
85 
                 if (isdigit(inptr[3])) {
86 
                     reg = 10 * reg + (inptr[3]-'0');
87 
                     if (isIdentChar(inptr[4]))
88 
                         return -1;
89 
                     inptr += 4;
90 
                     NextToken();
91 
                     return reg;
92 
                 }
93 
                 else if (isIdentChar(inptr[3]))
94 
                     return -1;
95 
                 else {
96 
                     inptr += 3;
97 
                     NextToken();
98 
                     return reg;
99 
                 }
100 
             }
101 
             else if (isIdentChar(inptr[2]))
102 
                 return -1;
103 
             else {
104 
                 inptr += 2;
105 
                 NextToken();
106 
                 return reg;
107 
             }
108 
         }
109 
         else return -1;
110 
    case 'b': case 'B':
111 
        if ((inptr[1]=='P' || inptr[1]=='p') && !isIdentChar(inptr[2])) {
112 
            inptr += 2;
113 
            NextToken();
114 
            return 27;
115 
        }
116 
        break;
117 
    case 'g': case 'G':
118 
        if ((inptr[1]=='P' || inptr[1]=='p') && !isIdentChar(inptr[2])) {
119 
            inptr += 2;
120 
            NextToken();
121 
            return 26;
122 
        }
123 
        break;
124 
    case 's': case 'S':
125 
        if ((inptr[1]=='P' || inptr[1]=='p') && !isIdentChar(inptr[2])) {
126 
            inptr += 2;
127 
            NextToken();
128 
            return 30;
129 
        }
130 
        break;
131 
    case 't': case 'T':
132 
        if ((inptr[1]=='P' || inptr[1]=='p') && !isIdentChar(inptr[2])) {
133 
            inptr += 2;
134 
            NextToken();
135 
            return 25;
136 
        }
137 
        if ((inptr[1]=='R' || inptr[1]=='r') && !isIdentChar(inptr[2])) {
138 
            inptr += 2;
139 
            NextToken();
140 
            return 24;
141 
        }
142 
        break;
143 
    case 'p': case 'P':
144 
        if ((inptr[1]=='c' || inptr[1]=='C') && !isIdentChar(inptr[2])) {
145 
            inptr += 2;
146 
            NextToken();
147 
            return 29;
148 
        }
149 
        break;
150 
    case 'l': case 'L':
151 
        if ((inptr[1]=='R' || inptr[1]=='r') && !isIdentChar(inptr[2])) {
152 
            inptr += 2;
153 
            NextToken();
154 
            return 31;
155 
        }
156 
        break;
157 
    case 'x': case 'X':
158 
        if ((inptr[1]=='l' || inptr[1]=='L') && (inptr[2]=='r' || inptr[2]=='R') &&
159 
        !isIdentChar(inptr[3])) {
160 
            inptr += 3;
161 
            NextToken();
162 
            return 28;
163 
        }
164 
        break;
165 
    default:
166 
        return -1;
167 
    }
168 
    return -1;
169 
}
170 
 
171 
 
172 
static int getBoundsRegister()
173 
{
174 
    int reg;
175 
 
176 
    while(isspace(*inptr)) inptr++;
177 
    switch(*inptr) {
178 
    case 'b': case 'B':
179 
         if (isdigit(inptr[1])) {
180 
             reg = inptr[1]-'0';
181 
             if (isdigit(inptr[2])) {
182 
                 reg = 10 * reg + (inptr[2]-'0');
183 
                 if (isdigit(inptr[3])) {
184 
                     reg = 10 * reg + (inptr[3]-'0');
185 
                     if (isIdentChar(inptr[4]))
186 
                         return -1;
187 
                     inptr += 4;
188 
                     NextToken();
189 
                     return reg;
190 
                 }
191 
                 else if (isIdentChar(inptr[3]))
192 
                     return -1;
193 
                 else {
194 
                     inptr += 3;
195 
                     NextToken();
196 
                     return reg;
197 
                 }
198 
             }
199 
             else if (isIdentChar(inptr[2]))
200 
                 return -1;
201 
             else {
202 
                 inptr += 2;
203 
                 NextToken();
204 
                 return reg;
205 
             }
206 
         }
207 
         else return -1;
208 
    }
209 
    return -1;
210 
}
211 
 
212 
 
213 
// ----------------------------------------------------------------------------
214 
// Get the friendly name of a special purpose register.
215 
// ----------------------------------------------------------------------------
216 
 
217 
static int FISA64_getSprRegister()
218 
{
219 
    while(isspace(*inptr)) inptr++;
220 
    switch(*inptr) {
221 
 
222 
    case '0':
223 
    case '1':
224 
    case '2':
225 
    case '3':
226 
    case '4':
227 
    case '5':
228 
    case '6':
229 
    case '7':
230 
    case '8':
231 
    case '9':
232 
         NextToken();
233 
         NextToken();
234 
         return (int)ival.low;
235 
 
236 
    // bear
237 
    case 'b': case 'B':
238 
         if ((inptr[1]=='e' || inptr[1]=='E') &&
239 
             (inptr[2]=='a' || inptr[2]=='A') &&
240 
             (inptr[3]=='r' || inptr[3]=='R') &&
241 
             !isIdentChar(inptr[4])) {
242 
             inptr += 4;
243 
             NextToken();
244 
             return 11;
245 
         }
246 
         break;
247 
    // cas clk cr0 cr3
248 
    case 'c': case 'C':
249 
         if ((inptr[1]=='a' || inptr[1]=='A') &&
250 
             (inptr[2]=='s' || inptr[2]=='S') &&
251 
             !isIdentChar(inptr[3])) {
252 
             inptr += 3;
253 
             NextToken();
254 
             return 44;
255 
         }
256 
         if ((inptr[1]=='l' || inptr[1]=='L') &&
257 
             (inptr[2]=='k' || inptr[2]=='K') &&
258 
             !isIdentChar(inptr[3])) {
259 
             inptr += 3;
260 
             NextToken();
261 
             return 0x06;
262 
         }
263 
         if ((inptr[1]=='r' || inptr[1]=='R') &&
264 
             (inptr[2]=='0') &&
265 
             !isIdentChar(inptr[3])) {
266 
             inptr += 3;
267 
             NextToken();
268 
             return 0x00;
269 
         }
270 
         if ((inptr[1]=='r' || inptr[1]=='R') &&
271 
             (inptr[2]=='3') &&
272 
             !isIdentChar(inptr[3])) {
273 
             inptr += 3;
274 
             NextToken();
275 
             return 0x03;
276 
         }
277 
         break;
278 
 
279 
    // dbad0 dbad1 dbctrl dpc dsp
280 
    case 'd': case 'D':
281 
         if ((inptr[1]=='b' || inptr[1]=='B') &&
282 
             (inptr[2]=='a' || inptr[2]=='A') &&
283 
             (inptr[3]=='d' || inptr[3]=='D') &&
284 
             (inptr[4]=='0' || inptr[4]=='0') &&
285 
             !isIdentChar(inptr[5])) {
286 
             inptr += 5;
287 
             NextToken();
288 
             return 50;
289 
         }
290 
         if ((inptr[1]=='b' || inptr[1]=='B') &&
291 
             (inptr[2]=='a' || inptr[2]=='A') &&
292 
             (inptr[3]=='d' || inptr[3]=='D') &&
293 
             (inptr[4]=='1' || inptr[4]=='1') &&
294 
             !isIdentChar(inptr[5])) {
295 
             inptr += 5;
296 
             NextToken();
297 
             return 51;
298 
         }
299 
         if ((inptr[1]=='b' || inptr[1]=='B') &&
300 
             (inptr[2]=='a' || inptr[2]=='A') &&
301 
             (inptr[3]=='d' || inptr[3]=='D') &&
302 
             (inptr[4]=='2' || inptr[4]=='2') &&
303 
             !isIdentChar(inptr[5])) {
304 
             inptr += 5;
305 
             NextToken();
306 
             return 52;
307 
         }
308 
         if ((inptr[1]=='b' || inptr[1]=='B') &&
309 
             (inptr[2]=='a' || inptr[2]=='A') &&
310 
             (inptr[3]=='d' || inptr[3]=='D') &&
311 
             (inptr[4]=='3' || inptr[4]=='3') &&
312 
             !isIdentChar(inptr[5])) {
313 
             inptr += 5;
314 
             NextToken();
315 
             return 53;
316 
         }
317 
         if ((inptr[1]=='b' || inptr[1]=='B') &&
318 
             (inptr[2]=='c' || inptr[2]=='C') &&
319 
             (inptr[3]=='t' || inptr[3]=='T') &&
320 
             (inptr[4]=='r' || inptr[4]=='R') &&
321 
             (inptr[5]=='l' || inptr[5]=='L') &&
322 
             !isIdentChar(inptr[6])) {
323 
             inptr += 6;
324 
             NextToken();
325 
             return 54;
326 
         }
327 
         if ((inptr[1]=='p' || inptr[1]=='P') &&
328 
             (inptr[2]=='c' || inptr[2]=='C') &&
329 
             !isIdentChar(inptr[3])) {
330 
             inptr += 3;
331 
             NextToken();
332 
             return 7;
333 
         }
334 
         if (
335 
             (inptr[1]=='b' || inptr[1]=='B') &&
336 
             (inptr[2]=='p' || inptr[2]=='P') &&
337 
             (inptr[3]=='c' || inptr[3]=='C') &&
338 
             !isIdentChar(inptr[4])) {
339 
             inptr += 4;
340 
             NextToken();
341 
             return 7;
342 
         }
343 
         if ((inptr[1]=='s' || inptr[1]=='S') &&
344 
             (inptr[2]=='p' || inptr[2]=='P') &&
345 
             !isIdentChar(inptr[3])) {
346 
             inptr += 3;
347 
             NextToken();
348 
             return 16;
349 
         }
350 
         break;
351 
 
352 
    // ea epc esp
353 
    case 'e': case 'E':
354 
         if ((inptr[1]=='a' || inptr[1]=='A') &&
355 
             !isIdentChar(inptr[2])) {
356 
             inptr += 2;
357 
             NextToken();
358 
             return 40;
359 
         }
360 
         if ((inptr[1]=='p' || inptr[1]=='P') &&
361 
             (inptr[2]=='c' || inptr[2]=='C') &&
362 
             !isIdentChar(inptr[3])) {
363 
             inptr += 3;
364 
             NextToken();
365 
             return 9;
366 
         }
367 
         if ((inptr[1]=='s' || inptr[1]=='S') &&
368 
             (inptr[2]=='p' || inptr[2]=='P') &&
369 
             !isIdentChar(inptr[3])) {
370 
             inptr += 3;
371 
             NextToken();
372 
             return 17;
373 
         }
374 
         break;
375 
 
376 
    // fault_pc
377 
    case 'f': case 'F':
378 
         if ((inptr[1]=='a' || inptr[1]=='A') &&
379 
             (inptr[2]=='u' || inptr[2]=='U') &&
380 
             (inptr[3]=='l' || inptr[3]=='L') &&
381 
             (inptr[4]=='t' || inptr[4]=='T') &&
382 
             (inptr[5]=='_' || inptr[5]=='_') &&
383 
             (inptr[6]=='p' || inptr[6]=='P') &&
384 
             (inptr[7]=='c' || inptr[7]=='C') &&
385 
             !isIdentChar(inptr[8])) {
386 
             inptr += 8;
387 
             NextToken();
388 
             return 0x08;
389 
         }
390 
         break;
391 
 
392 
    // history
393 
    case 'h': case 'H':
394 
         if ((inptr[1]=='i' || inptr[1]=='I') &&
395 
             (inptr[2]=='s' || inptr[2]=='S') &&
396 
             (inptr[3]=='t' || inptr[3]=='T') &&
397 
             (inptr[4]=='o' || inptr[4]=='O') &&
398 
             (inptr[5]=='r' || inptr[5]=='R') &&
399 
             (inptr[6]=='y' || inptr[6]=='Y') &&
400 
             !isIdentChar(inptr[7])) {
401 
             inptr += 7;
402 
             NextToken();
403 
             return 0x0D;
404 
         }
405 
         break;
406 
 
407 
    // ipc isp ivno
408 
    case 'i': case 'I':
409 
         if ((inptr[1]=='p' || inptr[1]=='P') &&
410 
             (inptr[2]=='c' || inptr[2]=='C') &&
411 
             !isIdentChar(inptr[3])) {
412 
             inptr += 3;
413 
             NextToken();
414 
             return 8;
415 
         }
416 
         if ((inptr[1]=='s' || inptr[1]=='S') &&
417 
             (inptr[2]=='p' || inptr[2]=='P') &&
418 
             !isIdentChar(inptr[3])) {
419 
             inptr += 3;
420 
             NextToken();
421 
             return 15;
422 
         }
423 
         if ((inptr[1]=='v' || inptr[1]=='V') &&
424 
             (inptr[2]=='n' || inptr[2]=='N') &&
425 
             (inptr[3]=='o' || inptr[3]=='O') &&
426 
             !isIdentChar(inptr[4])) {
427 
             inptr += 4;
428 
             NextToken();
429 
             return 0x0C;
430 
         }
431 
         break;
432 
 
433 
 
434 
    // LOTGRP
435 
    case 'l': case 'L':
436 
         if ((inptr[1]=='o' || inptr[1]=='O') &&
437 
             (inptr[2]=='t' || inptr[2]=='T') &&
438 
             (inptr[3]=='g' || inptr[3]=='G') &&
439 
             (inptr[4]=='r' || inptr[4]=='R') &&
440 
             (inptr[5]=='p' || inptr[5]=='P') &&
441 
             !isIdentChar(inptr[6])) {
442 
             inptr += 6;
443 
             NextToken();
444 
             return 42;
445 
         }
446 
         break;
447 
 
448 
    // rand
449 
    case 'r': case 'R':
450 
         if ((inptr[1]=='a' || inptr[1]=='A') &&
451 
             (inptr[2]=='n' || inptr[2]=='N') &&
452 
             (inptr[3]=='d' || inptr[3]=='D') &&
453 
             !isIdentChar(inptr[4])) {
454 
             inptr += 4;
455 
             NextToken();
456 
             return 0x12;
457 
         }
458 
         break;
459 
    // ss_ll srand1 srand2
460 
    case 's': case 'S':
461 
         if ((inptr[1]=='s' || inptr[1]=='S') &&
462 
             (inptr[2]=='_' || inptr[2]=='_') &&
463 
             (inptr[3]=='l' || inptr[3]=='L') &&
464 
             (inptr[4]=='l' || inptr[4]=='L') &&
465 
             !isIdentChar(inptr[5])) {
466 
             inptr += 5;
467 
             NextToken();
468 
             return 0x1A;
469 
         }
470 
         if ((inptr[1]=='r' || inptr[1]=='R') &&
471 
             (inptr[2]=='a' || inptr[2]=='A') &&
472 
             (inptr[3]=='n' || inptr[3]=='N') &&
473 
             (inptr[4]=='d' || inptr[4]=='D') &&
474 
             (inptr[5]=='1') &&
475 
             !isIdentChar(inptr[6])) {
476 
             inptr += 6;
477 
             NextToken();
478 
             return 0x10;
479 
         }
480 
         if ((inptr[1]=='r' || inptr[1]=='R') &&
481 
             (inptr[2]=='a' || inptr[2]=='A') &&
482 
             (inptr[3]=='n' || inptr[3]=='N') &&
483 
             (inptr[4]=='d' || inptr[4]=='D') &&
484 
             (inptr[5]=='2') &&
485 
             !isIdentChar(inptr[6])) {
486 
             inptr += 6;
487 
             NextToken();
488 
             return 0x11;
489 
         }
490 
         if ((inptr[1]=='p' || inptr[1]=='P') &&
491 
             (inptr[2]=='r' || inptr[2]=='R') &&
492 
             isdigit(inptr[3]) && isdigit(inptr[4]) &&
493 
             !isIdentChar(inptr[5])) {
494 
             inptr += 5;
495 
             NextToken();
496 
             return (inptr[3]-'0')*10 + (inptr[4]-'0');
497 
         }
498 
         break;
499 
 
500 
    // tag tick
501 
    case 't': case 'T':
502 
         if ((inptr[1]=='i' || inptr[1]=='I') &&
503 
             (inptr[2]=='c' || inptr[2]=='C') &&
504 
             (inptr[3]=='k' || inptr[3]=='K') &&
505 
             !isIdentChar(inptr[4])) {
506 
             inptr += 4;
507 
             NextToken();
508 
             return 4;
509 
         }
510 
         if ((inptr[1]=='a' || inptr[1]=='A') &&
511 
             (inptr[2]=='g' || inptr[2]=='G') &&
512 
             !isIdentChar(inptr[3])) {
513 
             inptr += 3;
514 
             NextToken();
515 
             return 41;
516 
         }
517 
         break;
518 
 
519 
    // vbr
520 
    case 'v': case 'V':
521 
         if ((inptr[1]=='b' || inptr[1]=='B') &&
522 
             (inptr[2]=='r' || inptr[2]=='R') &&
523 
             !isIdentChar(inptr[3])) {
524 
             inptr += 3;
525 
             NextToken();
526 
             return 10;
527 
         }
528 
         break;
529 
    }
530 
    return -1;
531 
}
532 
 
533 
// ---------------------------------------------------------------------------
534 
// ---------------------------------------------------------------------------
535 
 
536 
static void emit_insn(int64_t oc)
537 
{
538 
     emitAlignedCode(oc & 255);
539 
     emitCode((oc >> 8) & 255);
540 
     emitCode((oc >> 16) & 255);
541 
     emitCode((oc >> 24) & 255);
542 
     num_bytes += 4;
543 
     num_insns += 1;
544 
}
545 
 
546 
// ---------------------------------------------------------------------------
547 
// ---------------------------------------------------------------------------
548 
 
549 
static void emit_insn2(int64_t oc)
550 
{
551 
     emitCode(oc & 255);
552 
     emitCode((oc >> 8) & 255);
553 
     emitCode((oc >> 16) & 255);
554 
     emitCode((oc >> 24) & 255);
555 
     num_bytes += 4;
556 
     num_insns += 1;
557 
}
558 
 
559 
 
560 
static void emit2(int64_t oc)
561 
{
562 
     emitAlignedCode(oc & 255);
563 
     emitCode((oc >> 8) & 255);
564 
     num_bytes += 2;
565 
     num_insns += 1;
566 
}
567 
 
568 
static void emit6(int64_t oc)
569 
{
570 
     emitAlignedCode(oc & 255);
571 
     emitCode((oc >> 8) & 255);
572 
     emitCode((oc >> 16) & 255);
573 
     emitCode((oc >> 24) & 255);
574 
     emitCode((oc >> 32) & 255);
575 
     emitCode((oc >> 40) & 255);
576 
     num_bytes += 6;
577 
     num_insns += 1;
578 
}
579 
 
580 
// ---------------------------------------------------------------------------
581 
// Emit code aligned to a code address.
582 
// ---------------------------------------------------------------------------
583 
 
584 
static void emitAlignedCode(int cd)
585 
{
586 
     int64_t ad;
587 
 
588 
 
589 
     ad = code_address & 15;
590 
     while (ad != 0 && ad != 2 && ad != 4 && ad != 6 &&
591 
            ad != 8 && ad != 10 && ad != 12 && ad != 14) {
592 
         emitByte(0x00);
593 
         ad = code_address & 15;
594 
     }
595 
 
596 
     emitByte(cd);
597 
}
598 
 
599 
 
600 
// ---------------------------------------------------------------------------
601 
// Determine how big of a prefix is required.
602 
// ---------------------------------------------------------------------------
603 
 
604 
static int fitsIn0(int64_t v)
605 
{
606 
    return (((v < 0) && ((v >> 14) == -1L)) || ((v >= 0) && ((v >> 14) == 0)));
607 
}
608 
 
609 
static int fitsIn10(int64_t v)
610 
{
611 
    return (((v < 0) && ((v >> 24) == -1L)) || ((v >= 0) && ((v >> 24) == 0)));
612 
}
613 
 
614 
static int fitsIn28(int64_t v)
615 
{
616 
    return (((v < 0) && ((v >> 42) == -1L)) || ((v >= 0) && ((v >> 42) == 0)));
617 
}
618 
 
619 
static int fitsIn41(int64_t v)
620 
{
621 
    return (((v < 0) && ((v >> 55) == -1L)) || ((v >= 0) && ((v >> 55) == 0)));
622 
}
623 
// ---------------------------------------------------------------------------
624 
// Emit constant extension for 15-bit operands.
625 
// Returns number of constant prefixes placed.
626 
// ---------------------------------------------------------------------------
627 
 
628 
static int emitImm15(int64_t v, int force)
629 
{
630 
     int nn;
631 
 
632 
     if (fitsIn0(v))
633 
        return 0;
634 
     else if (fitsIn10(v)) {
635 
         emit2(
636 
            ((v >> 16) << 7) | ((v>>15) & 1) |
637 
            0x10
638 
         );
639 
         return 1;
640 
     }
641 
     else if (fitsIn28(v)) {
642 
         emit_insn(0x78|(((v >> 18)&0x1FFFFFFLL) << 7)|((v >> 15)&7));
643 
         return 1;
644 
     }
645 
     else if (fitsIn41(v)) {
646 
         emit6(0x13|((v >> 15)&0x1FFFFFFFFFFLL) << 7);
647 
         return 1;
648 
     }
649 
     else {
650 
         emit_insn(0x78|(((v >> 46)&0x3FFFFLL) << 7)|((v >> 43)&7));
651 
         emit_insn(0x78|(((v >> 18)&0x1FFFFFFLL) << 7)|((v >> 15)&7));
652 
         return 2;
653 
     }
654 
 
655 
     // ToDo: modify the fixup record type based on the number of prefixes emitted.
656 
    if (bGen && lastsym && !use_gp && (lastsym->isExtern || lastsym->defined==0))
657 
    if( lastsym->segment < 5)
658 
    sections[segment+7].AddRel(sections[segment].index,((int64_t)(lastsym->ord+1) << 32) | nn+1 | (lastsym->isExtern ? 128 : 0)|
659 
    (lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
660 
     return nn;
661 
}
662 
 
663 
// ---------------------------------------------------------------------------
664 
// bfextu r1,r2,#1,#63
665 
// ---------------------------------------------------------------------------
666 
 
667 
static void process_bitfield(int oc)
668 
{
669 
    int Ra;
670 
    int Rt;
671 
    int mb;
672 
    int me;
673 
 
674 
    Rt = getRegisterX();
675 
    need(',');
676 
    Ra = getRegisterX();
677 
    need(',');
678 
    NextToken();
679 
    mb = (int)expr();
680 
    need(',');
681 
    NextToken();
682 
    me = (int)expr();
683 
    emit_insn(
684 
        (oc << 29) |
685 
        (me << 23) |
686 
        (mb << 17) |
687 
        (Rt << 12) |
688 
        (Ra << 7) |
689 
        0x03          // bitfield
690 
    );
691 
}
692 
 
693 
// ---------------------------------------------------------------------------
694 
// sys 4
695 
// ---------------------------------------------------------------------------
696 
 
697 
static void process_brk(int oc)
698 
{
699 
    int val;
700 
 
701 
    NextToken();
702 
    val = (int)expr();
703 
    emit_insn(
704 
        (oc << 30) |
705 
        ((val & 0x1ff) << 17) |
706 
        (30 << 7) |
707 
        0x38
708 
    );
709 
}
710 
 
711 
// ----------------------------------------------------------------------------
712 
// chk r1,r2,b32
713 
// ----------------------------------------------------------------------------
714 
 
715 
static void process_chk(int oc)
716 
{
717 
     int Ra;
718 
     int Br;
719 
     int Rt;
720 
 
721 
     Rt = getRegisterX();
722 
     need(',');
723 
     Ra = getRegisterX();
724 
     need(',');
725 
     Br = getBoundsRegister();
726 
     emit_insn(
727 
         (oc << 25) |
728 
         (Br << 17) |
729 
         (Rt << 12) |
730 
         (Ra << 7) |
731 
         0x02
732 
     );
733 
     prevToken();
734 
}
735 
 
736 
// ---------------------------------------------------------------------------
737 
// COM is an alternate mnemonic for EOR Rt,Ra,#-1
738 
// com r3,r3
739 
// ---------------------------------------------------------------------------
740 
 
741 
static void process_com()
742 
{
743 
    int Ra;
744 
    int Rt;
745 
 
746 
    Rt = getRegister();
747 
    need(',');
748 
    Ra = getRegister();
749 
    prevToken();
750 
    emit_insn(
751 
        (0x7fff << 17) |
752 
        (Rt << 12) |
753 
        (Ra << 7) |
754 
        0x0e           // EOR
755 
    );
756 
}
757 
 
758 
// ----------------------------------------------------------------------------
759 
// cpuid r1,r2,#0
760 
// ----------------------------------------------------------------------------
761 
 
762 
static void process_cpuid(int oc)
763 
{
764 
     int Ra;
765 
     int Rt;
766 
     int val;
767 
 
768 
     Rt = getRegisterX();
769 
     need(',');
770 
     Ra = getRegisterX();
771 
     need(',');
772 
     NextToken();
773 
     val = (int)expr();
774 
     emit_insn(
775 
         (oc << 25) |
776 
         ((val & 15) << 17) |
777 
         (Rt << 12) |
778 
         (Ra << 7) |
779 
         0x02
780 
     );
781 
     prevToken();
782 
}
783 
 
784 
// ---------------------------------------------------------------------------
785 
// JAL also processes JMP and JSR
786 
// jal r0,main
787 
// jal r0,[r19]
788 
// jmp (tbl,r2)
789 
// ---------------------------------------------------------------------------
790 
 
791 
static void process_jal(int oc, int Rt)
792 
{
793 
    int64_t addr;
794 
    int Ra;
795 
 
796 
    // -1 indicates to parse a target register
797 
    if (Rt == -1) {
798 
        Rt = getRegisterX();
799 
        if (Rt==-1) {
800 
            printf("Expecting a target register.");
801 
            return ;
802 
        }
803 
        need(',');
804 
    }
805 
    NextToken();
806 
    // Memory indirect ?
807 
    if (token=='(' || token=='[') {
808 
       Ra = getRegisterX();
809 
       if (Ra==-1) {
810 
           Ra = 0;
811 
           NextToken();
812 
           addr = expr();
813 
           prevToken();
814 
           if (token==',') {
815 
               NextToken();
816 
               Ra = getRegisterX();
817 
               if (Ra==-1) Ra = 0;
818 
           }
819 
           else if (token=='[') {
820 
                NextToken();
821 
               Ra = getRegisterX();
822 
               if (Ra==-1) Ra = 0;
823 
               need(']');
824 
               NextToken();
825 
           }
826 
           if (token!=')' && token != ']')
827 
               printf("Missing close bracket.\r\n");
828 
           emitImm15(addr,lastsym!=(SYM*)NULL);
829 
           emit_insn(
830 
               ((addr & 0x7fffLL) << 17) |
831 
               (Rt << 12) |
832 
               (Ra << 7) |
833 
               0x3e
834 
           );
835 
           return;
836 
       }
837 
       // Simple [Rn]
838 
       else {
839 
            if (token != ')' && token!=']')
840 
                printf("Missing close bracket\r\n");
841 
            emit_insn(
842 
                (Rt << 12) |
843 
                (Ra << 7) |
844 
                0x3C
845 
            );
846 
            return;
847 
       }
848 
    }
849 
    addr = expr() >> 1;
850 
    prevToken();
851 
    // d(Rn)?
852 
    if (token=='(' || token=='[') {
853 
        NextToken();
854 
        Ra = getRegisterX();
855 
        if (Ra==-1) {
856 
            printf("Illegal jump address mode.\r\n");
857 
            Ra = 0;
858 
        }
859 
        emitImm15(addr,0);
860 
        emit_insn(
861 
            ((addr & 0x7fffLL) << 17) |
862 
            (Rt << 12) |
863 
            (Ra << 7) |
864 
            0x3C
865 
        );
866 
        return;
867 
    }
868 
    emitImm15(addr, code_bits > 32);
869 
    emit_insn(
870 
        ((addr & 0x7fffLL) << 17) |
871 
        (Rt << 12) |
872 
        0x3C
873 
    );
874 
}
875 
 
876 
// ---------------------------------------------------------------------------
877 
// subi r1,r2,#1234
878 
// ---------------------------------------------------------------------------
879 
 
880 
static void process_riop(int oc)
881 
{
882 
    int Ra;
883 
    int Rt;
884 
    char *p;
885 
    int64_t val;
886 
 
887 
    p = inptr;
888 
    Rt = getRegisterX();
889 
    need(',');
890 
    Ra = getRegisterX();
891 
    need(',');
892 
    NextToken();
893 
    val = expr();
894 
    emitImm15(val,lastsym!=(SYM*)NULL);
895 
    if (oc == 0x14 && Ra==Rt && val >= 0 && val <= 15) {
896 
        emit2(
897 
            ((val & 15) << 12) |
898 
            (Ra << 7) |
899 
            0x22
900 
        );
901 
    }
902 
    else if (oc==0x15 && Ra==30 && Rt==30 && val >=0 && val < 4096 && (val &7)==0) {
903 
        emit2(
904 
            (((val >> 3)&0x1ff) << 7) |
905 
            0x25
906 
        );
907 
    }
908 
    else
909 
        emit_insn(
910 
            ((val & 0x7fff) << 17) |
911 
            (Rt << 12) |
912 
            (Ra << 7) |
913 
            oc
914 
        );
915 
}
916 
 
917 
// ---------------------------------------------------------------------------
918 
// add r1,r2,r12
919 
// ---------------------------------------------------------------------------
920 
 
921 
static void process_rrop(int oc)
922 
{
923 
    int Ra;
924 
    int Rb;
925 
    int Rt;
926 
    char *p;
927 
 
928 
    p = inptr;
929 
    Rt = getRegisterX();
930 
    need(',');
931 
    Ra = getRegisterX();
932 
    need(',');
933 
    NextToken();
934 
    if (token=='#') {
935 
        inptr = p;
936 
        switch(oc & 0x7F) {
937 
        case 4: process_riop(4); return;  // add
938 
        case 5: process_riop(5); return;  // sub
939 
        case 6: process_riop(6); return;  // cmp
940 
        case 7: process_riop(7); return;  // mul
941 
        case 8: process_riop(8); return;  // div
942 
        case 9: process_riop(9); return;  // mod
943 
        case 12: process_riop(12); return;  // and
944 
        case 13: process_riop(13); return;  // or
945 
        case 14: process_riop(14); return;  // eor
946 
        case 0x14: process_riop(0x14); return;  // addu
947 
        case 0x15: process_riop(0x15); return;  // subu
948 
        case 0x16: process_riop(0x16); return;  // cmpu
949 
        case 0x17: process_riop(0x17); return;  // mulu
950 
        case 0x18: process_riop(0x18); return;  // divu
951 
        case 0x19: process_riop(0x19); return;  // modu
952 
        // Shift
953 
        case 0x30:
954 
        case 0x31:
955 
        case 0x32:
956 
        case 0x33:
957 
        case 0x34:
958 
             process_shifti((oc & 0x7F) + 8); return;
959 
        default:    process_riop(oc); return;
960 
        }
961 
        return;
962 
    }
963 
    prevToken();
964 
    Rb = getRegisterX();
965 
    prevToken();
966 
    emit_insn(
967 
              ((oc & 0x7f) << 25) |
968 
//              ((oc >> 6) << 31) | // for shifts
969 
              (Rb << 17) |
970 
              (Rt << 12) |
971 
              (Ra << 7)|
972 
              2
973 
    );
974 
}
975 
 
976 
// ---------------------------------------------------------------------------
977 
// fabs.d fp1,fp2[,rm]
978 
// ---------------------------------------------------------------------------
979 
 
980 
static void process_fprop(int oc)
981 
{
982 
    int Ra;
983 
    int Rt;
984 
    char *p;
985 
    int  sz;
986 
    int fmt;
987 
    int rm;
988 
 
989 
    rm = 0;
990 
    sz = 'd';
991 
    if (*inptr=='.') {
992 
        inptr++;
993 
        if (strchr("sdtqSDTQ",*inptr)) {
994 
            sz = tolower(*inptr);
995 
            inptr++;
996 
        }
997 
        else
998 
            printf("Illegal float size.\r\n");
999 
    }
1000 
    p = inptr;
1001 
    if (oc==0x65 || oc==0x66)  // mffp, mv2fix
1002 
        Rt = getRegister();
1003 
    else
1004 
        Rt = getFPRegister();
1005 
    need(',');
1006 
    if (oc==0x1C || oc==0x1D)  // mtfp, mv2flt
1007 
        Ra = getRegister();
1008 
    else
1009 
        Ra = getFPRegister();
1010 
    if (token==',')
1011 
       rm = getFPRoundMode();
1012 
    prevToken();
1013 
 
1014 
    switch(sz) {
1015 
    case 's': fmt = 0; break;
1016 
    case 'd': fmt = 1; break;
1017 
    case 't': fmt = 2; break;
1018 
    case 'q': fmt = 3; break;
1019 
    }
1020 
    emit_insn(
1021 
        (oc << 25) |
1022 
        (fmt << 20) |
1023 
        (rm << 17) |
1024 
        (Rt << 12) |
1025 
        (Ra << 7) |
1026 
        0x02
1027 
    );
1028 
}
1029 
 
1030 
// ---------------------------------------------------------------------------
1031 
// fadd.d fp1,fp2,fp12[,rm]
1032 
// fcmp.d r1,fp3,fp10[,rm]
1033 
// ---------------------------------------------------------------------------
1034 
 
1035 
static void process_fprrop(int oc)
1036 
{
1037 
    int Ra;
1038 
    int Rb;
1039 
    int Rt;
1040 
    char *p;
1041 
    int  sz;
1042 
    int fmt;
1043 
    int rm;
1044 
 
1045 
    rm = 0;
1046 
    sz = 'd';
1047 
    if (*inptr=='.') {
1048 
        inptr++;
1049 
        if (strchr("sdtqSDTQ",*inptr)) {
1050 
            sz = tolower(*inptr);
1051 
            inptr++;
1052 
        }
1053 
        else
1054 
            printf("Illegal float size.\r\n");
1055 
    }
1056 
    p = inptr;
1057 
    if (oc==0x2A)        // fcmp
1058 
        Rt = getRegister();
1059 
    else
1060 
        Rt = getFPRegister();
1061 
    need(',');
1062 
    Ra = getFPRegister();
1063 
    need(',');
1064 
    Rb = getFPRegister();
1065 
    if (token==',')
1066 
       rm = getFPRoundMode();
1067 
    prevToken();
1068 
    switch(sz) {
1069 
    case 's': fmt = 0; break;
1070 
    case 'd': fmt = 1; break;
1071 
    case 't': fmt = 2; break;
1072 
    case 'q': fmt = 3; break;
1073 
    }
1074 
    emit_insn(
1075 
        (fmt << 25) |
1076 
        (rm << 22) |
1077 
        (Rb << 17) |
1078 
        (Rt << 12) |
1079 
        (Ra << 7) |
1080 
        oc
1081 
    );
1082 
}
1083 
 
1084 
// ---------------------------------------------------------------------------
1085 
// fcx r0,#2
1086 
// fdx r1,#0
1087 
// ---------------------------------------------------------------------------
1088 
 
1089 
static void process_fpstat(int oc)
1090 
{
1091 
    int Ra;
1092 
    int64_t bits;
1093 
    char *p;
1094 
 
1095 
    p = inptr;
1096 
    bits = 0;
1097 
    Ra = getRegister();
1098 
    if (token==',') {
1099 
       NextToken();
1100 
       bits = expr();
1101 
    }
1102 
    prevToken();
1103 
    emitAlignedCode(0x01);
1104 
    emitCode(Ra);
1105 
    emitCode(bits & 0xff);
1106 
    emitCode(0x00);
1107 
    emitCode(oc);
1108 
}
1109 
 
1110 
// ---------------------------------------------------------------------------
1111 
// not r3,r3
1112 
// ---------------------------------------------------------------------------
1113 
 
1114 
static void process_rop(int oc)
1115 
{
1116 
    int Ra;
1117 
    int Rt;
1118 
 
1119 
    Rt = getRegister();
1120 
    need(',');
1121 
    Ra = getRegister();
1122 
    prevToken();
1123 
    emit_insn(
1124 
        (oc << 25) |
1125 
        (Rt << 12) |
1126 
        (Ra << 7) |
1127 
        0x02
1128 
    );
1129 
}
1130 
 
1131 
// ---------------------------------------------------------------------------
1132 
// beq r1,label
1133 
// ---------------------------------------------------------------------------
1134 
 
1135 
static void process_bcc(int oc)
1136 
{
1137 
    int Ra;
1138 
    int64_t val;
1139 
    int64_t disp,disp1;
1140 
    int64_t ad;
1141 
 
1142 
    val = 0;
1143 
    Ra = getRegisterX();
1144 
    need(',');
1145 
    NextToken();
1146 
    val = expr();
1147 
    ad = code_address;
1148 
    disp1 = ((val - ad) >> 1);
1149 
    disp = ((val - ad) >> 1) & 0x7fffLL;
1150 
 
1151 
    if ((oc == 0 || oc==1) && disp1 != 0 && disp1 >= -8 && disp1 <= 7) {
1152 
       emit2(
1153 
           ((disp & 15) << 12) |
1154 
           (Ra << 7) |
1155 
           (oc ? 0x33 : 0x32)
1156 
       );
1157 
    }
1158 
    else
1159 
 
1160 
        emit_insn(
1161 
            (disp << 17) |
1162 
            (oc << 12) |
1163 
            (Ra << 7) |
1164 
            0x3D
1165 
        );
1166 
}
1167 
 
1168 
// ---------------------------------------------------------------------------
1169 
// bra label
1170 
// ---------------------------------------------------------------------------
1171 
 
1172 
static void process_bra(int oc)
1173 
{
1174 
    int64_t val;
1175 
    int64_t disp,disp1;
1176 
    int64_t ad;
1177 
 
1178 
    val = 0;
1179 
    NextToken();
1180 
    val = expr();
1181 
     // ToDo: modify the fixup record type based on the number of prefixes emitted.
1182 
    if (bGen && lastsym && (lastsym->isExtern || lastsym->defined==0))
1183 
    if( lastsym->segment < 5)
1184 
    sections[segment+7].AddRel(sections[segment].index,((int64_t)(lastsym->ord+1) << 32) | FUT_R27 | (lastsym->isExtern ? 128 : 0)|
1185 
    (lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
1186 
    ad = code_address;
1187 
    disp1 = ((val - ad) >> 1);
1188 
    disp = ((val - ad) >> 1) & 0x1ffffffLL;
1189 
    if (disp1 >= -256 && disp1 <= 255 && disp1 != 0 && oc==0x3A)
1190 
       emit2(
1191 
            ((disp1 & 0x1ff) << 7) |
1192 
            0x23
1193 
       );
1194 
    else
1195 
        emit_insn(
1196 
            (disp << 7) |
1197 
            (oc & 0x7f)
1198 
        );
1199 
}
1200 
 
1201 
// ---------------------------------------------------------------------------
1202 
// ---------------------------------------------------------------------------
1203 
 
1204 
static void getIndexScale(int *sc)
1205 
{
1206 
      int64_t val;
1207 
 
1208 
      NextToken();
1209 
      val = expr();
1210 
      prevToken();
1211 
      switch(val) {
1212 
      case 0: *sc = 0; break;
1213 
      case 1: *sc = 0; break;
1214 
      case 2: *sc = 1; break;
1215 
      case 4: *sc = 2; break;
1216 
      case 8: *sc = 3; break;
1217 
      default: printf("Illegal scaling factor.\r\n");
1218 
      }
1219 
}
1220 
 
1221 
// ---------------------------------------------------------------------------
1222 
// ---------------------------------------------------------------------------
1223 
static void process_message()
1224 
{
1225 
    char buf[200];
1226 
    int nn;
1227 
 
1228 
    while(*inptr != '"' && *inptr != '\n') inptr++;
1229 
    if (*inptr=='\n') { NextToken(); return; }
1230 
    nn = 0;
1231 
    inptr++;
1232 
    while (*inptr != '"' && *inptr != '\n' && nn < 197) {
1233 
        buf[nn] = *inptr;
1234 
        inptr++;
1235 
        nn++;
1236 
    }
1237 
    buf[nn] = '\0';
1238 
    strcat_s(buf, sizeof(buf), "\r\n");
1239 
    printf(buf);
1240 
    ScanToEOL();
1241 
}
1242 
 
1243 
// ---------------------------------------------------------------------------
1244 
// expr
1245 
// expr[Reg]
1246 
// expr[Reg+Reg*sc]
1247 
// [Reg]
1248 
// [Reg+Reg*sc]
1249 
// ---------------------------------------------------------------------------
1250 
 
1251 
static void mem_operand(int64_t *disp, int *regA, int *regB, int *sc, int *md)
1252 
{
1253 
     int64_t val;
1254 
     int8_t ind;
1255 
 
1256 
     ind = false;
1257 
 
1258 
     // chech params
1259 
     if (disp == (int64_t *)NULL)
1260 
         return;
1261 
     if (regA == (int *)NULL)
1262 
         return;
1263 
     if (regB == (int *)NULL)
1264 
         return;
1265 
     if (sc==(int *)NULL)
1266 
         return;
1267 
     if (md==(int *)NULL)
1268 
         return;
1269 
 
1270 
     *disp = 0;
1271 
     *regA = -1;
1272 
     *regB = -1;
1273 
     *sc = 0;
1274 
     if (token!='[') {;
1275 
          val = expr();
1276 
          *disp = val;
1277 
     }
1278 
     if (token=='[') {
1279 
         *regA = getRegisterX();
1280 
         // Memory indirect ?
1281 
         if (*regA == -1) {
1282 
             ind = true;
1283 
             prevToken();
1284 
             *disp = expr();
1285 
             if (token=='[') {
1286 
                 *regA = getRegisterX();
1287 
                 need(']');
1288 
                 if (*regA==-1)
1289 
                     printf("expecting a register\r\n");
1290 
                 NextToken();
1291 
             }
1292 
             else
1293 
                 *regA = 0;
1294 
             need(']');
1295 
             NextToken();
1296 
             if (token=='[') {
1297 
                 *regB = getRegisterX();
1298 
                 if (*regB==-1)
1299 
                     printf("expecting a register\r\n");
1300 
                 if (token=='*')
1301 
                     getIndexScale(sc);
1302 
                 need(']');
1303 
             }
1304 
             NextToken();
1305 
             if (token=='+') {
1306 
                 NextToken();
1307 
                 if (token=='+') {
1308 
                     *md = 7;
1309 
                     return;
1310 
                 }
1311 
             }
1312 
             else if (token=='-') {
1313 
                  NextToken();
1314 
                  if (token=='-') {
1315 
                      *md = 6;
1316 
                      return;
1317 
                  }
1318 
             }
1319 
             *md = 5;
1320 
             return;
1321 
         }
1322 
         if (token=='+') {
1323 
              *sc = 0;
1324 
              *regB = getRegisterX();
1325 
              if (*regB == -1) {
1326 
                  printf("expecting a register\r\n");
1327 
              }
1328 
              if (token=='*') {
1329 
                  getIndexScale(sc);
1330 
              }
1331 
         }
1332 
         need(']');
1333 
         if (token=='+') {
1334 
             NextToken();
1335 
             if (token=='+') {
1336 
                 *md = 3;
1337 
                 return;
1338 
             }
1339 
         }
1340 
         else if (token=='-') {
1341 
              NextToken();
1342 
              if (token=='-') {
1343 
                  *md = 2;
1344 
                  return;
1345 
              }
1346 
         }
1347 
         *md = 1;
1348 
     }
1349 
}
1350 
 
1351 
// ---------------------------------------------------------------------------
1352 
// sw disp[r1],r2
1353 
// sw [r1+r2],r3
1354 
// ----------------------------------------------------------------------------
1355 
 
1356 
static void process_store(int oc)
1357 
{
1358 
    int Ra;
1359 
    int Rb;
1360 
    int Rs;
1361 
    int sc;
1362 
    int md;
1363 
    int64_t disp;
1364 
 
1365 
    if (oc==0x71)
1366 
        Rs = getFPRegister();
1367 
    else
1368 
        Rs = getRegisterX();
1369 
    expect(',');
1370 
    mem_operand(&disp, &Ra, &Rb, &sc, &md);
1371 
    if (Rs < 0) {
1372 
        printf("Expecting a source register.\r\n");
1373 
        ScanToEOL();
1374 
        return;
1375 
    }
1376 
    if (Rb > 0) {
1377 
       if (disp < 0)
1378 
           printf("store offset must be greater than zero.\r\n");
1379 
       if (disp > 255LL)
1380 
           printf("store offset too large.\r\n");
1381 
        emit_insn(
1382 
            ((disp & 0xff) << 24) |
1383 
            (sc << 22) |
1384 
            (Rb << 17) |
1385 
            (Rs << 12) |
1386 
            (Ra << 7) |
1387 
            (oc==0x71 ? 0x75 : oc+8)
1388 
        );
1389 
       return;
1390 
    }
1391 
    emitImm15(disp,lastsym!=(SYM*)NULL);
1392 
    if (Ra < 0) Ra = 0;
1393 
    // Convert SW Rn,D[BP] to short form
1394 
    if (oc==0x63 && Ra==27 && ((disp & 0x7)==0) && ((disp >> 3) >= -8) && ((disp >> 3) <= 7)) {
1395 
        emit2(
1396 
           (((disp >> 3) & 0x0f) << 12) |
1397 
           (Rs << 7) |
1398 
           0x67
1399 
        );
1400 
    }
1401 
    else
1402 
        emit_insn(
1403 
            ((disp & 0x7fff) << 17) |
1404 
            (Rs << 12) |
1405 
            (Ra << 7) |
1406 
            oc
1407 
        );
1408 
    ScanToEOL();
1409 
}
1410 
 
1411 
// ----------------------------------------------------------------------------
1412 
// ----------------------------------------------------------------------------
1413 
 
1414 
static void process_ldi(int oc)
1415 
{
1416 
    int Rt;
1417 
    int64_t val;
1418 
 
1419 
    Rt = getRegisterX();
1420 
    if (Rt==-1) {
1421 
        Rt = getFPRegister();
1422 
        oc = 0x1A;
1423 
    }
1424 
    expect(',');
1425 
    val = expr();
1426 
    emitImm15(val,lastsym!=(SYM*)NULL);
1427 
 
1428 
    if (val <= 7 && val >= -8)
1429 
       emit2(
1430 
           ((val & 15) << 12) |
1431 
           (Rt << 7) |
1432 
           0x34
1433 
       );
1434 
    else
1435 
 
1436 
        emit_insn(
1437 
            ((val & 0x7FFFLL) << 17) |
1438 
            (Rt << 12) |
1439 
            oc
1440 
        );
1441 
}
1442 
 
1443 
// ----------------------------------------------------------------------------
1444 
// lw r1,disp[r2]
1445 
// lw r1,[r2+r3]
1446 
// cas r2,disp[r1]
1447 
// ----------------------------------------------------------------------------
1448 
 
1449 
static void process_load(int oc)
1450 
{
1451 
    int Ra;
1452 
    int Rb;
1453 
    int Rt;
1454 
    int sc;
1455 
    int md;
1456 
    char *p;
1457 
    int64_t disp;
1458 
    int fixup = 5;
1459 
 
1460 
    sc = 0;
1461 
    p = inptr;
1462 
    if (oc==0x51)
1463 
       Rt = getFPRegister();
1464 
    else
1465 
        Rt = getRegisterX();
1466 
    if (Rt < 0) {
1467 
        printf("Expecting a target register.\r\n");
1468 
//        printf("Line:%.60s\r\n",p);
1469 
        ScanToEOL();
1470 
        inptr-=2;
1471 
        return;
1472 
    }
1473 
    expect(',');
1474 
    mem_operand(&disp, &Ra, &Rb, &sc, &md);
1475 
    if (Rb >= 0) {
1476 
       if (disp < 0)
1477 
           printf("load offset must be greater than zero.\r\n");
1478 
       if (disp > 255LL)
1479 
           printf("load offset too large.\r\n");
1480 
       fixup = 11;
1481 
       if (oc==0x87 || oc==0x6c) {  //LWS CAS
1482 
          printf("Address mode not supported.\r\n");
1483 
          return;
1484 
       }
1485 
       if (oc==0x9F) oc = 0x8F;  // LEA
1486 
       else oc = oc + 8;
1487 
        emit_insn(
1488 
            ((disp & 0xff) << 24) |
1489 
            (sc << 22) |
1490 
            (Rb << 17) |
1491 
            (Rt << 12) |
1492 
            (Ra << 7) |
1493 
            oc
1494 
        );
1495 
       return;
1496 
    }
1497 
    emitImm15(disp,lastsym!=(SYM*)NULL);
1498 
    if (Ra < 0) Ra = 0;
1499 
    // Convert LW Rn,D[BP] to short form
1500 
    if (oc==0x46 && Ra==27 && ((disp & 0x7)==0) && ((disp >> 3) >= -8) && ((disp >> 3) <= 7)) {
1501 
        emit2(
1502 
           (((disp >> 3) & 0x0f) << 12) |
1503 
           (Rt << 7) |
1504 
           0x5F
1505 
        );
1506 
    }
1507 
    else
1508 
        emit_insn(
1509 
            ((disp & 0x7ffff) << 17) |
1510 
            (Rt << 12) |
1511 
            (Ra << 7) |
1512 
            oc
1513 
        );
1514 
    ScanToEOL();
1515 
}
1516 
 
1517 
// ----------------------------------------------------------------------------
1518 
// inc -8[bp],#1
1519 
// ----------------------------------------------------------------------------
1520 
 
1521 
static void process_inc(int oc)
1522 
{
1523 
    int Ra;
1524 
    int Rb;
1525 
    int sc;
1526 
    int sg;
1527 
    int64_t incamt;
1528 
    int64_t disp;
1529 
    char *p;
1530 
    int fixup = 5;
1531 
    int neg = 0;
1532 
 
1533 
    NextToken();
1534 
    p = inptr;
1535 
    mem_operand(&disp, &Ra, &Rb, &sc, &sg);
1536 
    incamt = 1;
1537 
    if (token==']')
1538 
       NextToken();
1539 
    if (token==',') {
1540 
        NextToken();
1541 
        incamt = expr();
1542 
        prevToken();
1543 
    }
1544 
    if (Rb >= 0) {
1545 
       if (disp < 0)
1546 
           printf("inc offset must be greater than zero.\r\n");
1547 
       if (disp > 255LL)
1548 
           printf("inc offset too large.\r\n");
1549 
       oc = 0x6F;  // INCX
1550 
       emit_insn(
1551 
           ((disp & 0xFF) << 24) |
1552 
           (sc << 22) |
1553 
           (Rb << 17) |
1554 
           ((incamt & 0x1F) << 12) |
1555 
           (Ra << 7) |
1556 
           oc
1557 
       );
1558 
       return;
1559 
    }
1560 
    if (oc==0x65) neg = 1;
1561 
    oc = 0x64;        // INC
1562 
    emitImm15(disp,lastsym!=(SYM*)NULL);
1563 
    if (Ra < 0) Ra = 0;
1564 
    if (neg) incamt = -incamt;
1565 
    emit_insn(
1566 
        ((disp & 0x7FFF) << 17) |
1567 
        ((incamt & 0x1F) << 12) |
1568 
        (Ra << 7) |
1569 
        oc
1570 
    );
1571 
    ScanToEOL();
1572 
}
1573 
 
1574 
// ----------------------------------------------------------------------------
1575 
// pea disp[r2]
1576 
// pea [r2+r3]
1577 
// ----------------------------------------------------------------------------
1578 
 
1579 
static void process_pea()
1580 
{
1581 
    int oc;
1582 
    int Ra;
1583 
    int Rb;
1584 
    int sc;
1585 
    int sg;
1586 
    char *p;
1587 
    int64_t disp;
1588 
    int fixup = 5;
1589 
 
1590 
    p = inptr;
1591 
    NextToken();
1592 
    mem_operand(&disp, &Ra, &Rb, &sc, &sg);
1593 
    if (Rb >= 0) {
1594 
       // For now PEAX isn't supported
1595 
       printf("PEA: Illegal address mode.\r\n");
1596 
       return;
1597 
       fixup = 11;
1598 
       oc = 0xB9;  // PEAX
1599 
        if (bGen && lastsym && Ra != 249 && !use_gp)
1600 
        if( lastsym->segment < 5)
1601 
        sections[segment+7].AddRel(sections[segment].index,((int64_t)(lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
1602 
        (lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
1603 
       emitCode(Ra);
1604 
       emitCode(Rb);
1605 
       emitCode(0x00);
1606 
       emitCode(sc | ((sg & 15) << 2));
1607 
       return;
1608 
    }
1609 
    oc = 0x65;        // PEA
1610 
    emitImm15(disp,lastsym!=(SYM*)NULL);
1611 
    if (Ra < 0) Ra = 0;
1612 
    emit_insn(
1613 
        ((disp & 0x7FFFLL) << 17) |
1614 
        (0x1E << 12) |
1615 
        (Ra << 7) |
1616 
        oc
1617 
    );
1618 
    ScanToEOL();
1619 
}
1620 
 
1621 
 
1622 
// ----------------------------------------------------------------------------
1623 
// push r1
1624 
// push #123
1625 
// push -8[BP]
1626 
// ----------------------------------------------------------------------------
1627 
 
1628 
static void process_pushpop(int oc)
1629 
{
1630 
    int Ra,Rb;
1631 
    int64_t val;
1632 
    int64_t disp;
1633 
    int sc;
1634 
    int sg;
1635 
 
1636 
    Ra = -1;
1637 
    Rb = -1;
1638 
    NextToken();
1639 
    if (token=='#' && oc==0x67) {  // Filter to PUSH
1640 
       val = expr();
1641 
       emitImm15(val,(code_bits > 32 || data_bits > 32) && lastsym!=(SYM *)NULL);
1642 
        emit_insn(
1643 
            ((val & 0x7FFFLL) << 17) |
1644 
            (0x1E << 12) |
1645 
            (0x00 << 7) |
1646 
            0x65   // PEA
1647 
        );
1648 
        return;
1649 
    }
1650 
    prevToken();
1651 
    Ra = getRegisterX();
1652 
    if (Ra == -1) {
1653 
        NextToken();
1654 
        mem_operand(&disp, &Ra, &Rb, &sc, &sg);
1655 
        emitImm15(disp,(code_bits > 32 || data_bits > 32) && lastsym!=(SYM *)NULL);
1656 
        if (Ra==-1) Ra = 0;
1657 
        emit_insn(
1658 
            ((disp & 0x7FFFLL) << 17) |
1659 
            (0x1E << 12) |
1660 
            (Ra << 7) |
1661 
            0x66
1662 
        );
1663 
        ScanToEOL();
1664 
        return;
1665 
    }
1666 
    if (oc==0x57) { // POP
1667 
 
1668 
        emit2(
1669 
           (2 << 12) |
1670 
           (Ra << 7) |
1671 
           0x31
1672 
        );
1673 
/*
1674 
 
1675 
        emit_insn(
1676 
            (8 << 17) |
1677 
            (Ra << 12) |
1678 
            (0x1E << 7) |
1679 
            oc
1680 
        );
1681 
*/
1682 
        prevToken();
1683 
        return;
1684 
    }
1685 
    //PUSH
1686 
 
1687 
    emit2(
1688 
       (Ra << 7) |
1689 
       0x31
1690 
    );
1691 
/*
1692 
    emit_insn(
1693 
        (0x1E << 12) |
1694 
        (Ra << 7)
1695 
        | oc
1696 
    );
1697 
*/
1698 
    prevToken();
1699 
}
1700 
 
1701 
// ----------------------------------------------------------------------------
1702 
// mov r1,r2
1703 
// ----------------------------------------------------------------------------
1704 
 
1705 
static void process_mov()
1706 
{
1707 
     int Ra;
1708 
     int Rt;
1709 
 
1710 
     Rt = getRegisterX();
1711 
     need(',');
1712 
     Ra = getRegisterX();
1713 
     emit2(
1714 
           ((Rt & 0xf) << 12) |
1715 
           (Ra << 7) |
1716 
           0x20 | ((Rt >> 4) & 1)
1717 
     );
1718 
/*
1719 
     emit_insn(
1720 
         (0x0D << 25) | // OR
1721 
         (Rt << 12) |
1722 
         (Ra << 7) |
1723 
         0x02
1724 
     );
1725 
*/
1726 
     prevToken();
1727 
}
1728 
 
1729 
// ----------------------------------------------------------------------------
1730 
// neg r1,r2
1731 
// ----------------------------------------------------------------------------
1732 
 
1733 
static void process_neg(int oc)
1734 
{
1735 
     int Ra;
1736 
     int Rb;
1737 
     int Rt;
1738 
 
1739 
     Ra = 0;
1740 
     Rt = getRegisterX();
1741 
     need(',');
1742 
     Rb = getRegisterX();
1743 
     emit_insn(
1744 
         (oc << 25) | // SUBU
1745 
         (Rb << 17) |
1746 
         (Rt << 12) |
1747 
         (Ra << 7) |
1748 
         0x02
1749 
     );
1750 
     prevToken();
1751 
}
1752 
 
1753 
// ----------------------------------------------------------------------------
1754 
// sei
1755 
// cli
1756 
// rtd
1757 
// rte
1758 
// rti
1759 
// ----------------------------------------------------------------------------
1760 
 
1761 
static void process_pctrl(int oc)
1762 
{
1763 
     int Rt;
1764 
 
1765 
     if (oc==29 || oc==30 || oc==31)
1766 
         Rt = 30;
1767 
     else
1768 
         Rt = 0;
1769 
     emit_insn(
1770 
         (0x37 << 25) |
1771 
         (oc << 17) |
1772 
         (Rt << 12) |
1773 
         0x02
1774 
     );
1775 
}
1776 
 
1777 
// ----------------------------------------------------------------------------
1778 
// rts
1779 
// rts #24
1780 
// rtl
1781 
// ----------------------------------------------------------------------------
1782 
 
1783 
static void process_rts(int oc)
1784 
{
1785 
     int64_t val;
1786 
 
1787 
     val = oc==0x3B ? 8 :0;
1788 
     NextToken();
1789 
     if (token=='#') {
1790 
        val = expr();
1791 
     }
1792 
     emitImm15(val,(code_bits > 32 || data_bits > 32) && lastsym!=(SYM *)NULL);
1793 
     if (val < 4096)
1794 
         emit2(
1795 
             (((val>>3) & 0x1FFLL) << 7) |
1796 
             ((oc==0x27) ? 0x37 : 0x30)
1797 
         );
1798 
     else
1799 
         emit_insn(
1800 
             ((val & 0x7FFFLL) << 17) |
1801 
             (0x1F << 12) |
1802 
             (0x1E << 7) |
1803 
             oc
1804 
         );
1805 
}
1806 
 
1807 
// ----------------------------------------------------------------------------
1808 
// asli r1,r2,#5
1809 
// ----------------------------------------------------------------------------
1810 
 
1811 
static void process_shifti(int oc)
1812 
{
1813 
     int Ra;
1814 
     int Rt;
1815 
     int64_t val;
1816 
 
1817 
     Rt = getRegisterX();
1818 
     need(',');
1819 
     Ra = getRegisterX();
1820 
     need(',');
1821 
     NextToken();
1822 
     val = expr();
1823 
     emit_insn(
1824 
         (oc << 25) |
1825 
         ((val & 63) << 17) |
1826 
         (Rt << 12) |
1827 
         (Ra << 7) |
1828 
         0x02
1829 
     );
1830 
}
1831 
 
1832 
// ----------------------------------------------------------------------------
1833 
// gran r1
1834 
// ----------------------------------------------------------------------------
1835 
 
1836 
static void process_gran(int oc)
1837 
{
1838 
    int Rt;
1839 
 
1840 
    Rt = getRegisterX();
1841 
    emitAlignedCode(0x01);
1842 
    emitCode(0x00);
1843 
    emitCode(Rt);
1844 
    emitCode(0x00);
1845 
    emitCode(oc);
1846 
    prevToken();
1847 
}
1848 
 
1849 
// ----------------------------------------------------------------------------
1850 
// ----------------------------------------------------------------------------
1851 
 
1852 
static void process_mtspr(int oc)
1853 
{
1854 
    int spr;
1855 
    int Ra;
1856 
    int Rc;
1857 
 
1858 
    Rc = getRegisterX();
1859 
    if (Rc==-1) {
1860 
        Rc = 0;
1861 
        spr = FISA64_getSprRegister();
1862 
        if (spr==-1) {
1863 
            printf("Line %d: An SPR is needed.\r\n", lineno);
1864 
            return;
1865 
        }
1866 
    }
1867 
    else
1868 
       spr = 0;
1869 
    need(',');
1870 
    Ra = getRegisterX();
1871 
    emit_insn(
1872 
        (oc << 25) |
1873 
        (spr << 17) |
1874 
        (Rc << 12) |
1875 
        (Ra << 7) |
1876 
        0x02
1877 
    );
1878 
    if (Ra >= 0)
1879 
    prevToken();
1880 
}
1881 
 
1882 
// ----------------------------------------------------------------------------
1883 
// ----------------------------------------------------------------------------
1884 
 
1885 
static void process_mtfp(int oc)
1886 
{
1887 
    int fpr;
1888 
    int Ra;
1889 
 
1890 
    fpr = getFPRegister();
1891 
    need(',');
1892 
    Ra = getRegisterX();
1893 
    emitAlignedCode(0x01);
1894 
    emitCode(Ra);
1895 
    emitCode(fpr);
1896 
    emitCode(0x00);
1897 
    emitCode(oc);
1898 
    if (Ra >= 0)
1899 
    prevToken();
1900 
}
1901 
 
1902 
// ----------------------------------------------------------------------------
1903 
// ----------------------------------------------------------------------------
1904 
 
1905 
static void process_mfspr(int oc)
1906 
{
1907 
    int spr;
1908 
    int Rt;
1909 
    int Ra;
1910 
 
1911 
    Rt = getRegisterX();
1912 
    need(',');
1913 
    Ra = getRegisterX();
1914 
    if (Ra==-1) {
1915 
        Ra = 0;
1916 
        spr = FISA64_getSprRegister();
1917 
        if (spr==-1) {
1918 
            printf("An SPR is needed.\r\n");
1919 
            return;
1920 
        }
1921 
    }
1922 
    else
1923 
        spr = 0;
1924 
    emit_insn(
1925 
        (oc << 25) |
1926 
        (spr << 17) |
1927 
        (Rt << 12) |
1928 
        (Ra << 7) |
1929 
        0x02
1930 
    );
1931 
    if (spr >= 0)
1932 
    prevToken();
1933 
}
1934 
 
1935 
// ----------------------------------------------------------------------------
1936 
// ----------------------------------------------------------------------------
1937 
 
1938 
static void process_mffp(int oc)
1939 
{
1940 
    int fpr;
1941 
    int Rt;
1942 
 
1943 
    Rt = getRegisterX();
1944 
    need(',');
1945 
    fpr = getFPRegister();
1946 
    emitAlignedCode(0x01);
1947 
    emitCode(fpr);
1948 
    emitCode(Rt);
1949 
    emitCode(0x00);
1950 
    emitCode(oc);
1951 
    if (fpr >= 0)
1952 
    prevToken();
1953 
}
1954 
 
1955 
// ----------------------------------------------------------------------------
1956 
// ----------------------------------------------------------------------------
1957 
 
1958 
static void process_fprdstat(int oc)
1959 
{
1960 
    int Rt;
1961 
 
1962 
    Rt = getRegisterX();
1963 
    emitAlignedCode(0x01);
1964 
    emitCode(0x00);
1965 
    emitCode(Rt);
1966 
    emitCode(0x00);
1967 
    emitCode(oc);
1968 
}
1969 
 
1970 
// ----------------------------------------------------------------------------
1971 
// ----------------------------------------------------------------------------
1972 
 
1973 
static void ProcessEOL(int opt)
1974 
{
1975 
    int mm;
1976 
    int first;
1977 
    int cc;
1978 
        int64_t nn;
1979 
 
1980 
     //printf("Line: %d\r", lineno);
1981 
     segprefix = -1;
1982 
     if (bGen && (segment==codeseg || segment==dataseg || segment==rodataseg)) {
1983 
    nn = binstart;
1984 
    cc = 8;
1985 
    if (segment==codeseg) {
1986 
       cc = 12;
1987 
/*
1988 
        if (sections[segment].bytes[binstart]==0x61) {
1989 
            fprintf(ofp, "%06LLX ", ca);
1990 
            for (nn = binstart; nn < binstart + 5 && nn < sections[segment].index; nn++) {
1991 
                fprintf(ofp, "%02X ", sections[segment].bytes[nn]);
1992 
            }
1993 
            fprintf(ofp, "   ; imm\n");
1994 
             if (((ca+5) & 15)==15) {
1995 
                 ca+=6;
1996 
                 binstart+=6;
1997 
                 nn++;
1998 
             }
1999 
             else {
2000 
                  ca += 5;
2001 
                  binstart += 5;
2002 
             }
2003 
        }
2004 
*/
2005 
/*
2006 
        if (sections[segment].bytes[binstart]==0xfd) {
2007 
            fprintf(ofp, "%06LLX ", ca);
2008 
            for (nn = binstart; nn < binstart + 5 && nn < sections[segment].index; nn++) {
2009 
                fprintf(ofp, "%02X ", sections[segment].bytes[nn]);
2010 
            }
2011 
            fprintf(ofp, "   ; imm\n");
2012 
             if (((ca+5) & 15)==15) {
2013 
                 ca+=6;
2014 
                 binstart+=6;
2015 
                 nn++;
2016 
             }
2017 
             else {
2018 
                  ca += 5;
2019 
                  binstart += 5;
2020 
             }
2021 
        }
2022 
         if (sections[segment].bytes[binstart]==0xfe) {
2023 
            fprintf(ofp, "%06LLX ", ca);
2024 
            for (nn = binstart; nn < binstart + 5 && nn < sections[segment].index; nn++) {
2025 
                fprintf(ofp, "%02X ", sections[segment].bytes[nn]);
2026 
            }
2027 
            fprintf(ofp, "   ; imm\n");
2028 
             if (((ca+5) & 15)==15) {
2029 
                 ca+=6;
2030 
                 nn++;
2031 
             }
2032 
             else {
2033 
                  ca += 5;
2034 
             }
2035 
        }
2036 
*/
2037 
    }
2038 
 
2039 
    first = 1;
2040 
    while (nn < sections[segment].index) {
2041 
        fprintf(ofp, "%06LLX ", ca);
2042 
        for (mm = nn; nn < mm + cc && nn < sections[segment].index; nn++) {
2043 
            fprintf(ofp, "%02X ", sections[segment].bytes[nn]);
2044 
        }
2045 
        for (; nn < mm + cc; nn++)
2046 
            fprintf(ofp, "   ");
2047 
        if (first & opt) {
2048 
            fprintf(ofp, "\t%.*s\n", inptr-stptr-1, stptr);
2049 
            first = 0;
2050 
        }
2051 
        else
2052 
            fprintf(ofp, opt ? "\n" : "; NOP Ramp\n");
2053 
        ca += cc;
2054 
    }
2055 
    // empty (codeless) line
2056 
    if (binstart==sections[segment].index) {
2057 
        fprintf(ofp, "%41s\t%.*s", "", inptr-stptr, stptr);
2058 
    }
2059 
    } // bGen
2060 
    if (opt) {
2061 
       stptr = inptr;
2062 
       lineno++;
2063 
    }
2064 
//    printf("line:%d\r",lineno);
2065 
    binstart = sections[segment].index;
2066 
    ca = sections[segment].address;
2067 
}
2068 
 
2069 
// ----------------------------------------------------------------------------
2070 
// ----------------------------------------------------------------------------
2071 
 
2072 
void FISA64_processMaster()
2073 
{
2074 
    int nn;
2075 
    int64_t bs1, bs2;
2076 
 
2077 
    lineno = 1;
2078 
    binndx = 0;
2079 
    binstart = 0;
2080 
    bs1 = 0;
2081 
    bs2 = 0;
2082 
    inptr = &masterFile[0];
2083 
    stptr = inptr;
2084 
    code_address = 0;
2085 
    bss_address = 0;
2086 
    start_address = 0;
2087 
    data_address = 0;
2088 
    first_org = 1;
2089 
    first_rodata = 1;
2090 
    first_data = 1;
2091 
    first_bss = 1;
2092 
    for (nn = 0; nn < 12; nn++) {
2093 
        sections[nn].index = 0;
2094 
        if (nn == 0)
2095 
        sections[nn].address = 0;
2096 
        else
2097 
        sections[nn].address = 0;
2098 
        sections[nn].start = 0;
2099 
        sections[nn].end = 0;
2100 
    }
2101 
    ca = code_address;
2102 
    segment = codeseg;
2103 
    memset(current_label,0,sizeof(current_label));
2104 
    NextToken();
2105 
    while (token != tk_eof) {
2106 
//        printf("\t%.*s\n", inptr-stptr-1, stptr);
2107 
//        printf("token=%d\r", token);
2108 
j_processToken:
2109 
        switch(token) {
2110 
        case tk_eol: ProcessEOL(1); break;
2111 
        case tk_add:  process_rrop(0x04); break;
2112 
        case tk_addi: process_riop(0x04); break;
2113 
        case tk_addu:  process_rrop(0x14); break;
2114 
        case tk_addui: process_riop(0x14); break;
2115 
        case tk_align: process_align(); continue; break;
2116 
        case tk_and:  process_rrop(12); break;
2117 
        case tk_andi:  process_riop(12); break;
2118 
        case tk_asl:  process_rrop(0x30); break;
2119 
        case tk_asli: process_shifti(0x38); break;
2120 
        case tk_asr:  process_rrop(0x34); break;
2121 
        case tk_asri: process_shifti(0x3C); break;
2122 
        case tk_beq: process_bcc(0); break;
2123 
        case tk_bfextu: process_bitfield(6); break;
2124 
        case tk_bge: process_bcc(3); break;
2125 
        case tk_bgt: process_bcc(2); break;
2126 
        case tk_ble: process_bcc(5); break;
2127 
        case tk_blt: process_bcc(4); break;
2128 
        case tk_bmi: process_bcc(4); break;
2129 
        case tk_bne: process_bcc(1); break;
2130 
        case tk_bpl: process_bcc(3); break;
2131 
        case tk_bra: process_bra(0x3A); break;
2132 
        case tk_bsr: process_bra(0x39); break;
2133 
//        case tk_bsr: process_bra(0x56); break;
2134 
        case tk_bss:
2135 
            if (first_bss) {
2136 
                while(sections[segment].address & 4095)
2137 
                    emitByte(0x00);
2138 
                sections[3].address = sections[segment].address;
2139 
                first_bss = 0;
2140 
                binstart = sections[3].index;
2141 
                ca = sections[3].address;
2142 
            }
2143 
            segment = bssseg;
2144 
            break;
2145 
        case tk_byte:  process_db(); break;
2146 
        case tk_cas: process_load(0x6C); break;
2147 
        case tk_chk: process_chk(0x1A); break;
2148 
        case tk_cli: process_pctrl(0); break;
2149 
        case tk_cmp: process_rrop(0x06); break;
2150 
        case tk_cmpu: process_rrop(0x16); break;
2151 
        case tk_code: process_code(); break;
2152 
        case tk_com: process_com(); break;
2153 
        case tk_cpuid: process_cpuid(0x36); break;
2154 
        case tk_data:
2155 
             // Process data declarations as if we are in the rodata segment
2156 
             // for initialization data.
2157 
             if (isInitializationData) {
2158 
                 token = tk_rodata;
2159 
                 goto j_processToken;
2160 
             }
2161 
            if (first_data) {
2162 
                while(sections[segment].address & 4095)
2163 
                    emitByte(0x00);
2164 
                sections[2].address = sections[segment].address;   // set starting address
2165 
                first_data = 0;
2166 
                binstart = sections[2].index;
2167 
                ca = sections[2].address;
2168 
            }
2169 
            process_data(dataseg);
2170 
            break;
2171 
        case tk_db:  process_db(); break;
2172 
        case tk_dc:  process_dc(); break;
2173 
        case tk_dec: process_inc(0x65); break;
2174 
        case tk_dh:  process_dh(); break;
2175 
        case tk_div: process_rrop(0x08); break;
2176 
        case tk_divu: process_rrop(0x18); break;
2177 
        case tk_dw:  process_dw(); break;
2178 
        case tk_end: goto j1;
2179 
        case tk_endpublic: break;
2180 
        case tk_eor: process_rrop(0x0E); break;
2181 
        case tk_eori: process_riop(0x0E); break;
2182 
        case tk_extern: process_extern(); break;
2183 
 
2184 
        case tk_fabs: process_fprop(0x64); break;
2185 
        case tk_fadd: process_fprrop(0x28); break;
2186 
        case tk_fcmp: process_fprrop(0x2A); break;
2187 
        case tk_fdiv: process_fprrop(0x2C); break;
2188 
        case tk_mffp: process_fprop(0x65); break;
2189 
        case tk_mv2fix: process_fprop(0x66); break;
2190 
        case tk_mv2flt: process_fprop(0x1D); break;
2191 
        case tk_mtfp: process_fprop(0x1C); break;
2192 
/*
2193 
        case tk_fcx: process_fpstat(0x74); break;
2194 
        case tk_fdx: process_fpstat(0x77); break;
2195 
        case tk_fex: process_fpstat(0x76); break;
2196 
*/
2197 
        case tk_fill: process_fill(); break;
2198 
        case tk_fix2flt: process_fprop(0x60); break;
2199 
        case tk_flt2fix: process_fprop(0x61); break;
2200 
        case tk_fmov: process_fprop(0x62); break;
2201 
        case tk_fmul: process_fprrop(0x2B); break;
2202 
/*
2203 
        case tk_fnabs: process_fprop(0x89); break;
2204 
        case tk_frm: process_fpstat(0x78); break;
2205 
        case tk_fstat: process_fprdstat(0x86); break;
2206 
        case tk_ftx: process_fpstat(0x75); break;
2207 
*/
2208 
        case tk_fneg: process_fprop(0x63); break;
2209 
        case tk_fsub: process_fprrop(0x29); break;
2210 
 
2211 
        case tk_gran: process_gran(0x14); break;
2212 
        case tk_inc: process_inc(0x64); break;
2213 
        case tk_int: process_brk(2); break;
2214 
 
2215 
        case tk_jal: process_jal(0x3C,-1); break;
2216 
        case tk_jmp: process_jal(0x3C,0); break;
2217 
        case tk_jsr: process_jal(0x3C,31); break;
2218 
 
2219 
        case tk_lb:  process_load(0x40); break;
2220 
        case tk_lbu: process_load(0x41); break;
2221 
        case tk_lc:  process_load(0x42); break;
2222 
        case tk_lcu: process_load(0x43); break;
2223 
        case tk_ldi: process_ldi(0x0A); break;
2224 
        case tk_lea: process_load(0x47); break;
2225 
        case tk_lfd: process_load(0x51); break;
2226 
        case tk_lh:  process_load(0x44); break;
2227 
        case tk_lhu: process_load(0x45); break;
2228 
        case tk_lsr: process_rrop(0x31); break;
2229 
        case tk_lsri: process_shifti(0x39); break;
2230 
        case tk_lw:  process_load(0x46); break;
2231 
        case tk_lwar:  process_load(0x5C); break;
2232 
        case tk_message: process_message(); break;
2233 
        case tk_mfspr: process_mfspr(0x1F); break;
2234 
        case tk_mod: process_rrop(0x09); break;
2235 
        case tk_modu: process_rrop(0x19); break;
2236 
        case tk_mov: process_mov(); break;
2237 
        case tk_mtspr: process_mtspr(0x1E); break;
2238 
        case tk_mul: process_rrop(0x07); break;
2239 
        case tk_muli: process_riop(0x07); break;
2240 
        case tk_mulu: process_rrop(0x17); break;
2241 
        case tk_mului: process_riop(0x17); break;
2242 
        case tk_neg: process_neg(0x15); break;
2243 
        case tk_nop: emit_insn(0x0000003F); break;
2244 
        case tk_not: process_rop(0x0A); break;
2245 
        case tk_or:  process_rrop(0x0D); break;
2246 
        case tk_ori: process_riop(0x0D); break;
2247 
        case tk_org: process_org(); break;
2248 
        case tk_pea: process_pea(); break;
2249 
        case tk_pop:  process_pushpop(0x57); break;
2250 
        case tk_public: process_public(); break;
2251 
        case tk_push: process_pushpop(0x67); break;
2252 
        case tk_rodata:
2253 
            if (first_rodata) {
2254 
                while(sections[segment].address & 4095)
2255 
                    emitByte(0x00);
2256 
                sections[1].address = sections[segment].address;
2257 
                first_rodata = 0;
2258 
                binstart = sections[1].index;
2259 
                ca = sections[1].address;
2260 
            }
2261 
            segment = rodataseg;
2262 
            break;
2263 
        case tk_rol: process_rrop(0x32); break;
2264 
        case tk_ror: process_rrop(0x33); break;
2265 
        case tk_roli: process_shifti(0x3A); break;
2266 
        case tk_rori: process_shifti(0x3B); break;
2267 
        case tk_rtd: process_pctrl(29); break;
2268 
        case tk_rte: process_pctrl(30); break;
2269 
        case tk_rti: process_pctrl(31); break;
2270 
        case tk_rtl: process_rts(0x27); break;
2271 
        case tk_rts: process_rts(0x3B); break;
2272 
        case tk_sb:  process_store(0x60); break;
2273 
        case tk_sc:  process_store(0x61); break;
2274 
        case tk_sei: process_pctrl(1); break;
2275 
        case tk_seq:  process_rrop(0x20); break;
2276 
        case tk_sfd: process_store(0x71); break;
2277 
        case tk_sh:  process_store(0x62); break;
2278 
        case tk_shl:  process_rrop(0x30); break;
2279 
        case tk_shli: process_shifti(0x38); break;
2280 
        case tk_sne:  process_rrop(0x21); break;
2281 
        case tk_stp: process_pctrl(2); break;
2282 
        case tk_sub:  process_rrop(0x05); break;
2283 
        case tk_subi: process_riop(0x05); break;
2284 
        case tk_subu:  process_rrop(0x15); break;
2285 
        case tk_subui: process_riop(0x15); break;
2286 
        case tk_sxb: process_rop(0x10); break;
2287 
        case tk_sxc: process_rop(0x11); break;
2288 
        case tk_sxh: process_rop(0x12); break;
2289 
        case tk_sys: process_brk(0); break;
2290 
        case tk_sw:  process_store(0x63); break;
2291 
        case tk_swcr:  process_store(0x6E); break;
2292 
        case tk_xor: process_rrop(0x0E); break;
2293 
        case tk_xori: process_riop(0x0E); break;
2294 
        case tk_wai: process_pctrl(3); break;
2295 
        case tk_id:  process_label(); break;
2296 
        }
2297 
        NextToken();
2298 
    }
2299 
j1:
2300 
    ;
2301 
}
2302 
 

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