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[/] [thor/] [trunk/] [FT64v5/] [software/] [AS64/] [source/] [Table888.cpp] - Blame information for rev 54

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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 
static void emitAlignedCode(int cd);
29 
static void process_shifti(int oc);
30 
 
31 
int first_rodata;
32 
int first_data;
33 
int first_bss;
34 
 
35 
// ---------------------------------------------------------------------------
36 
// ---------------------------------------------------------------------------
37 
 
38 
static void emit_insn(int64_t oc)
39 
{
40 
     emitAlignedCode(oc & 255);
41 
     emitCode((oc >> 8) & 255);
42 
     emitCode((oc >> 16) & 255);
43 
     emitCode((oc >> 24) & 255);
44 
     emitCode((oc >> 32) & 255);
45 
}
46 
 
47 
 
48 
// ---------------------------------------------------------------------------
49 
// Emit code aligned to a code address.
50 
// ---------------------------------------------------------------------------
51 
 
52 
static void emitAlignedCode(int cd)
53 
{
54 
     int64_t ad;
55 
 
56 
     ad = code_address & 15;
57 
     while (ad != 0 && ad != 5 && ad != 10) {
58 
         emitByte(0x00);
59 
         ad = code_address & 15;
60 
     }
61 
     ad = code_address & 0xfff;
62 
     if ((ad > 0xFF0 && cd == 0xFD) || (ad > 0xFEA && cd == 0x61)) {
63 
         emit_insn(0xEAEAEAEAEA);
64 
         emit_insn(0xEAEAEAEAEA);
65 
         if (cd==0x61)
66 
             emit_insn(0xEAEAEAEAEA);
67 
         ad = code_address & 0xfff;
68 
         while (ad != 0 && ad != 5 && ad != 10) {
69 
             emitByte(0x00);
70 
             ad = code_address & 15;
71 
         }
72 
     }
73 
     emitByte(cd);
74 
}
75 
 
76 
// ----------------------------------------------------------------------------
77 
// Bump up the address to the next aligned code address.
78 
// ----------------------------------------------------------------------------
79 
 
80 
void Table888_bump_address()
81 
{
82 
//     if ((*address & 15)==15)
83 
//         *address = *address + 1;
84 
     if (segment==codeseg) {
85 
         while ((sections[segment].address & 15) != 0 &&
86 
                (sections[segment].address & 15) != 5 &&
87 
                (sections[segment].address & 15) != 10) {
88 
               emitByte(0x00);
89 
         }
90 
     }
91 
}
92 
 
93 
 
94 
// ---------------------------------------------------------------------------
95 
// Emit constant extension for memory operands.
96 
// ---------------------------------------------------------------------------
97 
 
98 
static void emitImm4(int64_t v, int force)
99 
{
100 
     if (v < -8L || v > 7L || force) {
101 
          emitAlignedCode(0xfd);
102 
          emitCode((v >> 4) & 255);
103 
          emitCode((v >> 12) & 255);
104 
          emitCode((v >> 20) & 255);
105 
          emitCode((v >> 28) & 255);
106 
     }
107 
     if (((v < 0) && ((v >> 36) != -1L)) || ((v > 0) && ((v >> 36) != 0L)) || (force && data_bits > 36)) {
108 
          emitAlignedCode(0xfe);
109 
          emitCode((v >> 36) & 255);
110 
          emitCode((v >> 44) & 255);
111 
          emitCode((v >> 52) & 255);
112 
          emitCode((v >> 60) & 255);
113 
     }
114 
}
115 
 
116 
// ---------------------------------------------------------------------------
117 
// Emit constant extension for memory operands.
118 
// ---------------------------------------------------------------------------
119 
 
120 
static void emitImm8(int64_t v, int force)
121 
{
122 
     if (v < -128L || v > 127L || force) {
123 
          emitAlignedCode(0xfd);
124 
          emitCode((v >> 8) & 255);
125 
          emitCode((v >> 16) & 255);
126 
          emitCode((v >> 24) & 255);
127 
          emitCode((v >> 32) & 255);
128 
     }
129 
     if (((v < 0) && ((v >> 40) != -1L)) || ((v > 0) && ((v >> 40) != 0L)) || (force && data_bits > 40)) {
130 
          emitAlignedCode(0xfe);
131 
          emitCode((v >> 40) & 255);
132 
          emitCode((v >> 48) & 255);
133 
          emitCode((v >> 56) & 255);
134 
          emitCode(0x00);
135 
     }
136 
}
137 
 
138 
// ---------------------------------------------------------------------------
139 
// Emit constant extension for memory operands.
140 
// ---------------------------------------------------------------------------
141 
 
142 
static void emitImm14(int64_t v, int force)
143 
{
144 
     if (v < -8192L || v > 8191L || force) {
145 
          emitAlignedCode(0xfd);
146 
          emitCode((v >> 14) & 255);
147 
          emitCode((v >> 22) & 255);
148 
          emitCode((v >> 30) & 255);
149 
          emitCode((v >> 38) & 255);
150 
     }
151 
     if (((v < 0) && ((v >> 46) != -1L)) || ((v > 0) && ((v >> 46) != 0L)) || (force && data_bits > 46)) {
152 
          emitAlignedCode(0xfe);
153 
          emitCode((v >> 46) & 255);
154 
          emitCode((v >> 54) & 255);
155 
          emitCode((v >> 62) & 255);
156 
          emitCode(0x00);
157 
     }
158 
}
159 
 
160 
// ---------------------------------------------------------------------------
161 
// Emit constant extension for 16-bit operands.
162 
// ---------------------------------------------------------------------------
163 
 
164 
static void emitImm16(int64_t v, int force)
165 
{
166 
     if (v < -32768L || v > 32767L || force) {
167 
          emitAlignedCode(0xfd);
168 
          emitCode((v >> 16) & 255);
169 
          emitCode((v >> 24) & 255);
170 
          emitCode((v >> 32) & 255);
171 
          emitCode((v >> 40) & 255);
172 
     }
173 
     if (((v < 0) && ((v >> 48) != -1L)) || ((v > 0) && ((v >> 48) != 0L)) || (force && (code_bits > 48 || data_bits > 48))) {
174 
          emitAlignedCode(0xfe);
175 
          emitCode((v >> 48) & 255);
176 
          emitCode((v >> 56) & 255);
177 
          emitCode(0x00);
178 
          emitCode(0x00);
179 
     }
180 
}
181 
 
182 
// ---------------------------------------------------------------------------
183 
// Emit constant extension for 24-bit operands.
184 
// ---------------------------------------------------------------------------
185 
 
186 
static void emitImm24(int64_t v, int force)
187 
{
188 
     if (v < -8388608L || v > 8388607L || force) {
189 
          emitAlignedCode(0xfd);
190 
          emitCode((v >> 24) & 255);
191 
          emitCode((v >> 32) & 255);
192 
          emitCode((v >> 40) & 255);
193 
          emitCode((v >> 48) & 255);
194 
     }
195 
     if (((v < 0) && ((v >> 56) != -1L)) || ((v > 0) && ((v >> 56) != 0L)) || (force && (code_bits > 56 || data_bits > 56))) {
196 
          emitAlignedCode(0xfe);
197 
          emitCode((v >> 56) & 255);
198 
          emitCode(0x00);
199 
          emitCode(0x00);
200 
          emitCode(0x00);
201 
     }
202 
}
203 
 
204 
// ---------------------------------------------------------------------------
205 
// Emit constant extension for 32-bit operands.
206 
// ---------------------------------------------------------------------------
207 
 
208 
static void emitImm32(int64_t v, int force)
209 
{
210 
     if (v < -2147483648LL || v > 2147483647LL || force) {
211 
          emitAlignedCode(0xfd);
212 
          emitCode((v >> 32) & 255);
213 
          emitCode((v >> 40) & 255);
214 
          emitCode((v >> 48) & 255);
215 
          emitCode((v >> 56) & 255);
216 
     }
217 
}
218 
 
219 
// ---------------------------------------------------------------------------
220 
// jmp main
221 
// jsr [r19]
222 
// jmp (tbl,r2)
223 
// ---------------------------------------------------------------------------
224 
 
225 
static void process_jmp(int oc)
226 
{
227 
    int64_t addr;
228 
    int Ra;
229 
 
230 
    NextToken();
231 
    // Memory indirect ?
232 
    if (token=='(' || token=='[') {
233 
       Ra = getRegister();
234 
       if (Ra==-1) {
235 
           Ra = 0;
236 
           NextToken();
237 
           addr = expr();
238 
           prevToken();
239 
           if (token==',') {
240 
               Ra = getRegister();
241 
               if (Ra==-1) Ra = 0;
242 
           }
243 
           if (token!=')' && token != ']')
244 
               printf("Missing close bracket.\r\n");
245 
           emitImm24(addr,lastsym!=(SYM*)NULL);
246 
           emitAlignedCode(oc+2);
247 
            if (bGen)
248 
                if (lastsym) {
249 
                    if( lastsym->segment < 5)
250 
                        sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | 2 | (lastsym->isExtern ? 128 : 0) | (code_bits << 8));
251 
                }
252 
           emitCode(Ra);
253 
           emitCode(addr & 255);
254 
           emitCode((addr >> 8) & 255);
255 
           emitCode((addr >> 16) & 255);
256 
           return;
257 
       }
258 
       // Simple [Rn]
259 
       else {
260 
            if (token != ')' && token!=']')
261 
                printf("Missing close bracket\r\n");
262 
            emitAlignedCode(oc + 4);
263 
            emitCode(Ra);
264 
            emitCode(0x00);
265 
            emitCode(0x00);
266 
            emitCode(0x00);
267 
            return;
268 
       }
269 
    }
270 
    addr = expr();
271 
    prevToken();
272 
    // d(Rn)?
273 
    if (token=='(' || token=='[') {
274 
        Ra = getRegister();
275 
        if (Ra==-1) {
276 
            printf("Illegal jump address mode.\r\n");
277 
            Ra = 0;
278 
        }
279 
        emitImm24(addr,0);
280 
        emitAlignedCode(oc+4);
281 
        emitCode(Ra);
282 
        emitCode(addr & 255);
283 
        emitCode((addr >> 8) & 255);
284 
        emitCode((addr >> 16) & 255);
285 
        return;
286 
    }
287 
 
288 
    emitImm32(addr, code_bits > 32);
289 
    emitAlignedCode(oc);
290 
    if (bGen)
291 
       if (lastsym) {
292 
            if( lastsym->segment < 5)
293 
                sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | 1 | (lastsym->isExtern ? 128 : 0) | (code_bits << 8));
294 
        }
295 
    emitCode(addr & 255);
296 
    emitCode((addr >> 8) & 255);
297 
    emitCode((addr >> 16) & 255);
298 
    emitCode((addr >> 24) & 255);
299 
}
300 
 
301 
// ---------------------------------------------------------------------------
302 
// subui r1,r2,#1234
303 
// ---------------------------------------------------------------------------
304 
 
305 
static void process_riop(int oc)
306 
{
307 
    int Ra;
308 
    int Rt;
309 
    char *p;
310 
    int64_t val;
311 
 
312 
    p = inptr;
313 
    Rt = getRegister();
314 
    need(',');
315 
    Ra = getRegister();
316 
    need(',');
317 
    NextToken();
318 
    val = expr();
319 
    emitImm16(val,lastsym!=(SYM*)NULL);
320 
    emitAlignedCode(oc);
321 
    if (bGen)
322 
    if (lastsym) {
323 
        if( lastsym->segment < 5)
324 
        sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | 3 | (lastsym->isExtern ? 128 : 0) |
325 
        (lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
326 
    }
327 
    emitCode(Ra);
328 
    emitCode(Rt);
329 
    emitCode(val & 255);
330 
    emitCode((val >> 8) & 255);
331 
}
332 
 
333 
// ---------------------------------------------------------------------------
334 
// addu r1,r2,r12
335 
// ---------------------------------------------------------------------------
336 
 
337 
static void process_rrop(int oc)
338 
{
339 
    int Ra;
340 
    int Rb;
341 
    int Rt;
342 
    char *p;
343 
 
344 
    p = inptr;
345 
    Rt = getRegister();
346 
    need(',');
347 
    Ra = getRegister();
348 
    need(',');
349 
    NextToken();
350 
    if (token=='#') {
351 
        inptr = p;
352 
        switch(oc) {
353 
        case 0x04: process_riop(0x04); return;  // add
354 
        case 0x14: process_riop(0x14); return;  // addu
355 
        case 0x05: process_riop(0x05); return;  // sub
356 
        case 0x15: process_riop(0x15); return;  // subu
357 
        case 0x06: process_riop(0x06); return;  // cmp
358 
        case 0x07: process_riop(0x07); return;  // mul
359 
        case 0x08: process_riop(0x08); return;  // div
360 
        case 0x09: process_riop(0x09); return;  // mod
361 
        case 0x17: process_riop(0x17); return;  // mulu
362 
        case 0x18: process_riop(0x18); return;  // divu
363 
        case 0x19: process_riop(0x19); return;  // modu
364 
        case 0x20: process_riop(0x0C); return;  // and
365 
        case 0x21: process_riop(0x0D); return;  // or
366 
        case 0x22: process_riop(0x0E); return;  // eor
367 
        // Sxx
368 
        case 0x60: process_riop(0x30); return;
369 
        case 0x61: process_riop(0x31); return;
370 
        case 0x68: process_riop(0x38); return;
371 
        case 0x69: process_riop(0x39); return;
372 
        case 0x6A: process_riop(0x3A); return;
373 
        case 0x6B: process_riop(0x3B); return;
374 
        case 0x6C: process_riop(0x3C); return;
375 
        case 0x6D: process_riop(0x3D); return;
376 
        case 0x6E: process_riop(0x3E); return;
377 
        case 0x6F: process_riop(0x3F); return;
378 
        // Shift
379 
        case 0x40: process_shifti(0x50); return;
380 
        case 0x41: process_shifti(0x51); return;
381 
        case 0x42: process_shifti(0x52); return;
382 
        case 0x43: process_shifti(0x53); return;
383 
        case 0x44: process_shifti(0x54); return;
384 
        }
385 
        return;
386 
    }
387 
    prevToken();
388 
    Rb = getRegister();
389 
    prevToken();
390 
    emitAlignedCode(2);
391 
    emitCode(Ra);
392 
    emitCode(Rb);
393 
    emitCode(Rt);
394 
    emitCode(oc);
395 
}
396 
 
397 
// ---------------------------------------------------------------------------
398 
// not r3,r3
399 
// ---------------------------------------------------------------------------
400 
 
401 
static void process_rop(int oc)
402 
{
403 
    int Ra;
404 
    int Rt;
405 
 
406 
    Rt = getRegister();
407 
    need(',');
408 
    Ra = getRegister();
409 
    prevToken();
410 
    emitAlignedCode(1);
411 
    emitCode(Ra);
412 
    emitCode(Rt);
413 
    emitCode(0x00);
414 
    emitCode(oc);
415 
}
416 
 
417 
// ---------------------------------------------------------------------------
418 
// brnz r1,label
419 
// ---------------------------------------------------------------------------
420 
 
421 
static void process_bcc(int oc)
422 
{
423 
    int Ra;
424 
    int64_t val;
425 
    int64_t disp;
426 
    int64_t ad;
427 
 
428 
    Ra = getRegister();
429 
    need(',');
430 
    NextToken();
431 
    val = expr();
432 
    ad = code_address + 5;
433 
    if ((ad & 15)==15)
434 
       ad++;
435 
    disp = (val & 0xFFFFFFFFFFFF0000L) - (ad & 0xFFFFFFFFFFFF0000L);
436 
    emitAlignedCode(oc);
437 
    emitCode(Ra);
438 
    emitCode(val & 255);
439 
    emitCode((val >> 8) & 255);
440 
    emitCode((disp >> 16) & 31);
441 
}
442 
 
443 
// ---------------------------------------------------------------------------
444 
// bra label
445 
// ---------------------------------------------------------------------------
446 
 
447 
static void process_bra(int oc)
448 
{
449 
    int64_t val;
450 
    int64_t disp;
451 
    int64_t ad;
452 
 
453 
    NextToken();
454 
    val = expr();
455 
    ad = code_address + 5;
456 
    if ((ad & 15)==15)
457 
       ad++;
458 
    disp = (val & 0xFFFFFFFFFFFF0000L) - (ad & 0xFFFFFFFFFFFF0000L);
459 
    emitAlignedCode(oc);
460 
    emitCode(0x00);
461 
    emitCode(val & 255);
462 
    emitCode((val >> 8) & 255);
463 
    emitCode((disp >> 16) & 31);
464 
}
465 
 
466 
// ---------------------------------------------------------------------------
467 
// expr
468 
// expr[Reg]
469 
// expr[Reg+Reg*sc]
470 
// [Reg]
471 
// [Reg+Reg*sc]
472 
// ---------------------------------------------------------------------------
473 
 
474 
static void mem_operand(int64_t *disp, int *regA, int *regB, int *sc, int *sg)
475 
{
476 
     int64_t val;
477 
 
478 
     // chech params
479 
     if (disp == (int64_t *)NULL)
480 
         return;
481 
     if (regA == (int *)NULL)
482 
         return;
483 
     if (regB == (int *)NULL)
484 
         return;
485 
     if (sc==(int *)NULL)
486 
         return;
487 
     if (sg==(int *)NULL)
488 
         return;
489 
 
490 
     *disp = 0;
491 
     *regA = -1;
492 
     *regB = -1;
493 
     *sc = 0;
494 
     *sg = 1;
495 
     if (token!='[') {;
496 
          val = expr();
497 
          *disp = val;
498 
     }
499 
     if (token=='[') {
500 
         *regA = getRegister();
501 
         if (*regA == -1) {
502 
             printf("expecting a register\r\n");
503 
         }
504 
         if (*regA==255 || *regA==253)
505 
            *sg = 2;
506 
         else if (*regA==254 || *regA==252)
507 
            *sg = 0;
508 
//         NextToken();
509 
         if (token=='+') {
510 
              *sc = 0;
511 
              *regB = getRegister();
512 
              if (*regB == -1) {
513 
                  printf("expecting a register\r\n");
514 
              }
515 
              if (token=='*' && !fSeg)
516 
                  printf("Index scaling not supported.\r\n");
517 
              if (token=='*') {
518 
                  NextToken();
519 
                  val = expr();
520 
                  prevToken();
521 
//                  if (token!=tk_icon) {
522 
//                      printf("expecting a scaling factor.\r\n");
523 
//                      printf("token %d %c\r\n", token, token);
524 
//                  }
525 
                  switch(val) {
526 
                  case 0: *sc = 0; break;
527 
                  case 1: *sc = 0; break;
528 
                  case 2: *sc = 1; break;
529 
                  case 4: *sc = 2; break;
530 
                  case 8: *sc = 3; break;
531 
                  default: printf("Illegal scaling factor.\r\n");
532 
                  }
533 
              }
534 
         }
535 
         need(']');
536 
     }
537 
}
538 
 
539 
// ---------------------------------------------------------------------------
540 
// sw disp[r1],r2
541 
// sw [r1+r2],r3
542 
// ----------------------------------------------------------------------------
543 
 
544 
static void process_store(int oc)
545 
{
546 
    int Ra;
547 
    int Rb;
548 
    int Rs;
549 
    int sc;
550 
    int sg;
551 
    int fixup;
552 
    int64_t disp;
553 
 
554 
    Rs = getRegister();
555 
    expect(',');
556 
    mem_operand(&disp, &Ra, &Rb, &sc, &sg);
557 
    if (segprefix >= 0)
558 
       sg = segprefix;
559 
    if (Rs < 0) {
560 
        printf("Expecting a source register.\r\n");
561 
        ScanToEOL();
562 
        return;
563 
    }
564 
    if (Rb > 0) {
565 
       if (fSeg) {
566 
           fixup = 5;
567 
           emitImm4(disp,lastsym!=(SYM*)NULL);
568 
       }
569 
       else {
570 
           fixup = 7;
571 
           emitImm8(disp,lastsym!=(SYM*)NULL);
572 
       }
573 
       emitAlignedCode(oc + 8);
574 
        if (bGen)
575 
        if (lastsym) {
576 
        if( lastsym->segment < 5)
577 
            sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
578 
            (lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
579 
        }
580 
       emitCode(Ra);
581 
       emitCode(Rb);
582 
       emitCode(Rs);
583 
       if (fSeg)
584 
            emitCode((disp << 4) | sc | ((sg & 3) << 2));
585 
       else
586 
            emitCode(disp & 255);
587 
       return;
588 
    }
589 
    if (fSeg) {
590 
        fixup = 4;
591 
        if (disp < 0xFFFFFFFFFFFFE000LL || disp > 0x1FFFLL)
592 
           emitImm14(disp,lastsym!=(SYM*)NULL);
593 
    }
594 
    else {
595 
        fixup = 3;
596 
        if (disp < 0xFFFFFFFFFFFF8000LL || disp > 0x7FFFLL)
597 
           emitImm16(disp,lastsym!=(SYM*)NULL);
598 
    }
599 
    emitAlignedCode(oc);
600 
    if (bGen && lastsym)
601 
    if( lastsym->segment < 5)
602 
    sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
603 
    (lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
604 
    if (Ra < 0) Ra = 0;
605 
    emitCode(Ra);
606 
    emitCode(Rs);
607 
    if (fSeg) {
608 
        emitCode(((disp << 2) & 0xFC) | (sg & 3));
609 
        emitCode((disp >> 6) & 255);
610 
    }
611 
    else {
612 
        emitCode(disp & 0xFF);
613 
        emitCode((disp >> 8) & 255);
614 
    }
615 
    ScanToEOL();
616 
}
617 
 
618 
// ----------------------------------------------------------------------------
619 
// ----------------------------------------------------------------------------
620 
 
621 
static void process_ldi(int oc)
622 
{
623 
    int Rt;
624 
    int64_t val;
625 
 
626 
    Rt = getRegister();
627 
    expect(',');
628 
    val = expr();
629 
    emitImm24(val,lastsym!=(SYM*)NULL);
630 
    emitAlignedCode(oc);
631 
    if (bGen && lastsym)
632 
    if( lastsym->segment < 5)
633 
    sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | 2 | (lastsym->isExtern ? 128 : 0)|
634 
    (lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
635 
    emitCode(Rt);
636 
    emitCode(val & 255);
637 
    emitCode((val >> 8) & 255);
638 
    emitCode((val >> 16) & 255);
639 
}
640 
 
641 
// ----------------------------------------------------------------------------
642 
// lw r1,disp[r2]
643 
// lw r1,[r2+r3]
644 
// ----------------------------------------------------------------------------
645 
 
646 
static void process_load(int oc)
647 
{
648 
    int Ra;
649 
    int Rb;
650 
    int Rt;
651 
    int sc;
652 
    int sg;
653 
    char *p;
654 
    int64_t disp;
655 
    int fixup = 5;
656 
 
657 
    p = inptr;
658 
    Rt = getRegister();
659 
    if (Rt < 0) {
660 
        printf("Expecting a target register.\r\n");
661 
//        printf("Line:%.60s\r\n",p);
662 
        ScanToEOL();
663 
        inptr-=2;
664 
        return;
665 
    }
666 
    expect(',');
667 
    mem_operand(&disp, &Ra, &Rb, &sc, &sg);
668 
    if (segprefix >= 0)
669 
        sg = segprefix;
670 
    if (Rb >= 0) {
671 
       if (fSeg) {
672 
           emitImm4(disp,lastsym!=(SYM*)NULL);
673 
           fixup = 5;
674 
       }
675 
       else {
676 
           emitImm8(disp,lastsym!=(SYM*)NULL);
677 
           fixup = 7;
678 
       }
679 
       if (oc==0x87) {
680 
          printf("Address mode not supported.\r\n");
681 
          return;
682 
       }
683 
       if (oc==0x92) oc = 0x8F;  // LEA
684 
       else oc = oc + 8;
685 
       emitAlignedCode(oc);
686 
        if (bGen && lastsym)
687 
        if( lastsym->segment < 5)
688 
        sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
689 
        (lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
690 
       emitCode(Ra);
691 
       emitCode(Rb);
692 
       emitCode(Rt);
693 
       if (fSeg)
694 
           emitCode((disp << 4) | sc | ((sg & 3) << 2));
695 
       else
696 
           emitCode(disp & 255);
697 
       return;
698 
    }
699 
    if (fSeg) {
700 
        fixup = 4;       // 14 bit
701 
        if (disp < 0xFFFFFFFFFFFFE000LL || disp > 0x1FFFLL)
702 
           emitImm14(disp,lastsym!=(SYM*)NULL);
703 
    }
704 
    else {
705 
        fixup = 3;       // 16 bit
706 
        if (disp < 0xFFFFFFFFFFFF8000LL || disp > 0x7FFFLL)
707 
           emitImm16(disp,lastsym!=(SYM*)NULL);
708 
    }
709 
    emitAlignedCode(oc);
710 
    if (bGen && lastsym)
711 
    if( lastsym->segment < 5)
712 
    sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
713 
    (lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
714 
    if (Ra < 0) Ra = 0;
715 
    emitCode(Ra);
716 
    emitCode(Rt);
717 
    if (fSeg) {
718 
        emitCode(((disp << 2) & 0xFC) | (sg & 3));
719 
        emitCode((disp >> 6) & 255);
720 
    }
721 
    else {
722 
        emitCode(disp & 0xFF);
723 
        emitCode((disp >> 8) & 255);
724 
    }
725 
    ScanToEOL();
726 
}
727 
 
728 
// ----------------------------------------------------------------------------
729 
// lmr r1,r12,[r252]
730 
// ----------------------------------------------------------------------------
731 
 
732 
static void process_lmr(int oc)
733 
{
734 
    int Ra;
735 
    int Rb;
736 
    int Rc;
737 
 
738 
    Ra = getRegister();
739 
    need(',');
740 
    Rb = getRegister();
741 
    need(',');
742 
    NextToken();
743 
    if (token=='[') {
744 
        Rc = getRegister();
745 
        need(']');
746 
    }
747 
    else
748 
        Rc = getRegister();
749 
    emitAlignedCode(0x02);
750 
    emitCode(Ra);
751 
    emitCode(Rb);
752 
    emitCode(Rc);
753 
    emitCode(oc);
754 
}
755 
 
756 
// ----------------------------------------------------------------------------
757 
// push r1/r2/r3/r4
758 
// push #123
759 
// ----------------------------------------------------------------------------
760 
 
761 
static void process_pushpop(int oc)
762 
{
763 
    int Ra,Rb,Rc,Rd;
764 
    int64_t val;
765 
 
766 
    Ra = -1;
767 
    Rb = -1;
768 
    Rc = -1;
769 
    Rd = -1;
770 
    NextToken();
771 
    if (token=='#' && oc==0xA6) {  // Filter to PUSH
772 
       val = expr();
773 
       emitImm32(val,(code_bits > 32 || data_bits > 32) && lastsym!=(SYM *)NULL);
774 
       emitAlignedCode(0xAD);
775 
        if (bGen && lastsym)
776 
        if( lastsym->segment < 5)
777 
        sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | 1 | (lastsym->isExtern ? 128 : 0)|
778 
        (lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
779 
       emitCode(val & 255);
780 
       emitCode((val >> 8) & 255);
781 
       emitCode((val >> 16) & 255);
782 
       emitCode((val >> 24) & 255);
783 
    }
784 
    else {
785 
        prevToken();
786 
        Ra = getRegister();
787 
        if (token=='/' || token==',') {
788 
            Rb = getRegister();
789 
            if (token=='/' || token==',') {
790 
                Rc = getRegister();
791 
                if (token=='/' || token==',') {
792 
                    Rd = getRegister();
793 
                }
794 
            }
795 
        }
796 
        prevToken();
797 
        emitAlignedCode(oc);
798 
        emitCode(Ra>=0 ? Ra : 0);
799 
        emitCode(Rb>=0 ? Rb : 0);
800 
        emitCode(Rc>=0 ? Rc : 0);
801 
        emitCode(Rd>=0 ? Rd : 0);
802 
    }
803 
}
804 
 
805 
// ----------------------------------------------------------------------------
806 
// mov r1,r2
807 
// ----------------------------------------------------------------------------
808 
 
809 
static void process_mov(int oc)
810 
{
811 
     int Ra;
812 
     int Rt;
813 
 
814 
     Rt = getRegister();
815 
     need(',');
816 
     Ra = getRegister();
817 
     emitAlignedCode(0x01);
818 
     emitCode(Ra);
819 
     emitCode(Rt);
820 
     emitCode(0x00);
821 
     emitCode(oc);
822 
     prevToken();
823 
}
824 
 
825 
// ----------------------------------------------------------------------------
826 
// rts
827 
// rts #24
828 
// ----------------------------------------------------------------------------
829 
 
830 
static void process_rts(int oc)
831 
{
832 
     int64_t val;
833 
 
834 
     val = 0;
835 
     NextToken();
836 
     if (token=='#') {
837 
        val = expr();
838 
     }
839 
     emitAlignedCode(oc);
840 
     emitCode(0x00);
841 
     emitCode(val & 255);
842 
     emitCode((val >> 8) & 255);
843 
     emitCode(0x00);
844 
}
845 
 
846 
// ----------------------------------------------------------------------------
847 
// shli r1,r2,#5
848 
// ----------------------------------------------------------------------------
849 
 
850 
static void process_shifti(int oc)
851 
{
852 
     int Ra;
853 
     int Rt;
854 
     int64_t val;
855 
 
856 
     Rt = getRegister();
857 
     need(',');
858 
     Ra = getRegister();
859 
     need(',');
860 
     NextToken();
861 
     val = expr();
862 
     emitAlignedCode(0x02);
863 
     emitCode(Ra);
864 
     emitCode(val & 63);
865 
     emitCode(Rt);
866 
     emitCode(oc);
867 
}
868 
 
869 
// ----------------------------------------------------------------------------
870 
// gran r1
871 
// ----------------------------------------------------------------------------
872 
 
873 
static void process_gran(int oc)
874 
{
875 
    int Rt;
876 
 
877 
    Rt = getRegister();
878 
    emitAlignedCode(0x01);
879 
    emitCode(0x00);
880 
    emitCode(Rt);
881 
    emitCode(0x00);
882 
    emitCode(oc);
883 
    prevToken();
884 
}
885 
 
886 
// ----------------------------------------------------------------------------
887 
// ----------------------------------------------------------------------------
888 
 
889 
static void process_mtspr(int oc)
890 
{
891 
    int spr;
892 
    int Ra;
893 
 
894 
    spr = getSprRegister();
895 
    need(',');
896 
    Ra = getRegister();
897 
    emitAlignedCode(0x01);
898 
    emitCode(Ra);
899 
    emitCode(spr);
900 
    emitCode(0x00);
901 
    emitCode(oc);
902 
    if (Ra >= 0)
903 
    prevToken();
904 
}
905 
 
906 
// ----------------------------------------------------------------------------
907 
// ----------------------------------------------------------------------------
908 
 
909 
static void process_mfspr(int oc)
910 
{
911 
    int spr;
912 
    int Rt;
913 
 
914 
    Rt = getRegister();
915 
    need(',');
916 
    spr = getSprRegister();
917 
    emitAlignedCode(0x01);
918 
    emitCode(spr);
919 
    emitCode(Rt);
920 
    emitCode(0x00);
921 
    emitCode(oc);
922 
    if (spr >= 0)
923 
    prevToken();
924 
}
925 
 
926 
// ----------------------------------------------------------------------------
927 
// ----------------------------------------------------------------------------
928 
 
929 
void Table888_processMaster()
930 
{
931 
    int nn,mm;
932 
    int64_t ca;
933 
    int first;
934 
    int64_t bs1, bs2;
935 
 
936 
    lineno = 1;
937 
    binndx = 0;
938 
    binstart = 0;
939 
    bs1 = 0;
940 
    bs2 = 0;
941 
    inptr = &masterFile[0];
942 
    stptr = inptr;
943 
    code_address = 0x200;
944 
    bss_address = 0;
945 
    start_address = 0x200;
946 
    first_org = 1;
947 
    first_rodata = 1;
948 
    first_data = 1;
949 
    for (nn = 0; nn < 12; nn++) {
950 
        sections[nn].index = 0;
951 
        sections[nn].address = 0;
952 
        sections[nn].start = 0;
953 
        sections[nn].end = 0;
954 
    }
955 
    ca = code_address;
956 
    segment = codeseg;
957 
    memset(current_label,0,sizeof(current_label));
958 
    NextToken();
959 
    while (token != tk_eof) {
960 
        switch(token) {
961 
        case tk_eol:
962 
             //printf("Line: %d\r\n", lineno);
963 
             segprefix = -1;
964 
             if (bGen && (segment==codeseg || segment==dataseg || segment==rodataseg)) {
965 
             if ((ca & 15)==15 && segment==codeseg) {
966 
                 ca++;
967 
                 binstart++;
968 
             }
969 
            nn = binstart;
970 
            if (segment==codeseg) {
971 
                if (sections[segment].bytes[binstart]==0xfd) {
972 
                    fprintf(ofp, "%06LLX ", ca);
973 
                    for (nn = binstart; nn < binstart + 5 && nn < sections[segment].index; nn++) {
974 
                        fprintf(ofp, "%02X ", sections[segment].bytes[nn]);
975 
                    }
976 
                    fprintf(ofp, "   ; imm\n");
977 
                     if (((ca+5) & 15)==15) {
978 
                         ca+=6;
979 
                         binstart+=6;
980 
                         nn++;
981 
                     }
982 
                     else {
983 
                          ca += 5;
984 
                          binstart += 5;
985 
                     }
986 
                }
987 
                 if (sections[segment].bytes[binstart]==0xfe) {
988 
                    fprintf(ofp, "%06LLX ", ca);
989 
                    for (nn = binstart; nn < binstart + 5 && nn < sections[segment].index; nn++) {
990 
                        fprintf(ofp, "%02X ", sections[segment].bytes[nn]);
991 
                    }
992 
                    fprintf(ofp, "   ; imm\n");
993 
                     if (((ca+5) & 15)==15) {
994 
                         ca+=6;
995 
                         nn++;
996 
                     }
997 
                     else {
998 
                          ca += 5;
999 
                     }
1000 
                }
1001 
            }
1002 
            first = 1;
1003 
            while (nn < sections[segment].index) {
1004 
                fprintf(ofp, "%06LLX ", ca);
1005 
                for (mm = nn; nn < mm + 8 && nn < sections[segment].index; nn++) {
1006 
                    fprintf(ofp, "%02X ", sections[segment].bytes[nn]);
1007 
                }
1008 
                for (; nn < mm + 8; nn++)
1009 
                    fprintf(ofp, "   ");
1010 
                if (first) {
1011 
                    fprintf(ofp, "\t%.*s\n", inptr-stptr-1, stptr);
1012 
                    first = 0;
1013 
                }
1014 
                else
1015 
                    fprintf(ofp, "\n");
1016 
                ca += 8;
1017 
            }
1018 
            // empty (codeless) line
1019 
            if (binstart==sections[segment].index) {
1020 
                fprintf(ofp, "%24s\t%.*s", "", inptr-stptr, stptr);
1021 
            }
1022 
            } // bGen
1023 
            stptr = inptr;
1024 
            binstart = sections[segment].index;
1025 
            ca = sections[segment].address;
1026 
            lineno++;
1027 
            break;
1028 
        case tk_add:  process_rrop(0x04); break;
1029 
        case tk_addi: process_riop(0x04); break;
1030 
        case tk_addu: process_rrop(0x14); break;
1031 
        case tk_addui: process_riop(0x14); break;
1032 
        case tk_align: process_align(); continue; break;
1033 
        case tk_and:  process_rrop(0x20); break;
1034 
        case tk_andi:  process_riop(0x0C); break;
1035 
        case tk_asr:  process_rrop(0x44); break;
1036 
        case tk_asri: process_shifti(0x54); break;
1037 
        case tk_beq: process_bcc(0x40); break;
1038 
        case tk_bge: process_bcc(0x4A); break;
1039 
        case tk_bgeu: process_bcc(0x4E); break;
1040 
        case tk_bgt: process_bcc(0x48); break;
1041 
        case tk_bgtu: process_bcc(0x4C); break;
1042 
        case tk_ble: process_bcc(0x49); break;
1043 
        case tk_bleu: process_bcc(0x4D); break;
1044 
        case tk_blt: process_bcc(0x4B); break;
1045 
        case tk_bltu: process_bcc(0x4F); break;
1046 
        case tk_bmi: process_bcc(0x44); break;
1047 
        case tk_bne: process_bcc(0x41); break;
1048 
        case tk_bpl: process_bcc(0x45); break;
1049 
        case tk_bra: process_bra(0x46); break;
1050 
        case tk_brnz: process_bcc(0x59); break;
1051 
        case tk_brz:  process_bcc(0x58); break;
1052 
        case tk_bvc: process_bcc(0x43); break;
1053 
        case tk_bvs: process_bcc(0x42); break;
1054 
        case tk_bsr: process_bra(0x56); break;
1055 
        case tk_bss: segment = bssseg; break;
1056 
        case tk_cli: emit_insn(0x3100000001); break;
1057 
        case tk_cmp: process_rrop(0x06); break;
1058 
        case tk_code: process_code(); break;
1059 
        case tk_com: process_rop(0x06); break;
1060 
        case tk_cs:  segprefix = 0; break;
1061 
        case tk_data:
1062 
            if (first_data) {
1063 
                while(sections[segment].address & 4095)
1064 
                    emitByte(0x00);
1065 
                sections[2].address = sections[segment].address;   // set starting address
1066 
                first_data = 0;
1067 
                binstart = sections[2].index;
1068 
                ca = sections[2].address;
1069 
            }
1070 
            process_data(dataseg);
1071 
            break;
1072 
        case tk_db:  process_db(); break;
1073 
        case tk_dbnz: process_bcc(0x5A); break;
1074 
        case tk_dc:  process_dc(); break;
1075 
        case tk_dh:  process_dh(); break;
1076 
        case tk_div: process_rrop(0x08); break;
1077 
        case tk_divu: process_rrop(0x18); break;
1078 
        case tk_ds:  segprefix = 1; break;
1079 
        case tk_dw:  process_dw(); break;
1080 
        case tk_end: goto j1;
1081 
        case tk_endpublic: break;
1082 
        case tk_eor: process_rrop(0x22); break;
1083 
        case tk_eori: process_riop(0x0E); break;
1084 
        case tk_extern: process_extern(); break;
1085 
        case tk_fill: process_fill(); break;
1086 
        case tk_gran: process_gran(0x14); break;
1087 
        case tk_jmp: process_jmp(0x50); break;
1088 
        case tk_jsr: process_jmp(0x51); break;
1089 
        case tk_lb:  process_load(0x80); break;
1090 
        case tk_lbu: process_load(0x81); break;
1091 
        case tk_lc:  process_load(0x82); break;
1092 
        case tk_lcu: process_load(0x83); break;
1093 
        case tk_ldi: process_ldi(0x16); break;
1094 
        case tk_lea: process_load(0x92); break;
1095 
        case tk_lh:  process_load(0x84); break;
1096 
        case tk_lhu: process_load(0x85); break;
1097 
        case tk_lmr: process_lmr(0x31); break;
1098 
        case tk_lw:  process_load(0x86); break;
1099 
        case tk_mfspr: process_mfspr(0x49); break;
1100 
        case tk_mod: process_rrop(0x09); break;
1101 
        case tk_modu: process_rrop(0x19); break;
1102 
        case tk_mov: process_mov(0x04); break;
1103 
        case tk_mtspr: process_mtspr(0x48); break;
1104 
        case tk_mul: process_rrop(0x07); break;
1105 
        case tk_muli: process_riop(0x07); break;
1106 
        case tk_mulu: process_rrop(0x17); break;
1107 
        case tk_mului: process_riop(0x17); break;
1108 
        case tk_neg: process_rop(0x05); break;
1109 
        case tk_nop: emit_insn(0xEAEAEAEAEA); break;
1110 
        case tk_not: process_rop(0x07); break;
1111 
        case tk_or:  process_rrop(0x21); break;
1112 
        case tk_ori: process_riop(0x0D); break;
1113 
        case tk_org: process_org(); break;
1114 
        case tk_php: emit_insn(0x3200000001); break;
1115 
        case tk_plp: emit_insn(0x3300000001); break;
1116 
        case tk_pop:  process_pushpop(0xA7); break;
1117 
        case tk_public: process_public(); break;
1118 
        case tk_push: process_pushpop(0xA6); break;
1119 
        case tk_rodata:
1120 
            if (first_rodata) {
1121 
                while(sections[segment].address & 4095)
1122 
                    emitByte(0x00);
1123 
                sections[1].address = sections[segment].address;
1124 
                first_rodata = 0;
1125 
                binstart = sections[1].index;
1126 
                ca = sections[1].address;
1127 
            }
1128 
            segment = rodataseg;
1129 
            break;
1130 
        case tk_rol: process_rrop(0x41); break;
1131 
        case tk_ror: process_rrop(0x43); break;
1132 
        case tk_rti: emit_insn(0x4000000001); break;
1133 
        case tk_rts: process_rts(0x60); break;
1134 
        case tk_sb:  process_store(0xa0); break;
1135 
        case tk_sc:  process_store(0xa1); break;
1136 
        case tk_sei: emit_insn(0x3000000001); break;
1137 
        case tk_seq:  process_rrop(0x60); break;
1138 
        case tk_seqi: process_riop(0x30); break;
1139 
        case tk_sge:  process_rrop(0x6A); break;
1140 
        case tk_sgt:  process_rrop(0x68); break;
1141 
        case tk_sle:  process_rrop(0x69); break;
1142 
        case tk_slt:  process_rrop(0x6B); break;
1143 
        case tk_sgeu:  process_rrop(0x6E); break;
1144 
        case tk_sgtu:  process_rrop(0x6C); break;
1145 
        case tk_sleu:  process_rrop(0x6D); break;
1146 
        case tk_sltu:  process_rrop(0x6F); break;
1147 
        case tk_sgei:  process_rrop(0x3A); break;
1148 
        case tk_sgti:  process_rrop(0x38); break;
1149 
        case tk_slei:  process_rrop(0x39); break;
1150 
        case tk_slti:  process_rrop(0x3B); break;
1151 
        case tk_sgeui:  process_rrop(0x3E); break;
1152 
        case tk_sgtui:  process_rrop(0x3C); break;
1153 
        case tk_sleui:  process_rrop(0x3D); break;
1154 
        case tk_sltui:  process_rrop(0x3F); break;
1155 
        case tk_sne:  process_rrop(0x61); break;
1156 
        case tk_snei: process_riop(0x31); break;
1157 
        case tk_sh:  process_store(0xa2); break;
1158 
        case tk_shl:  process_rrop(0x40); break;
1159 
        case tk_shli: process_shifti(0x50); break;
1160 
        case tk_shru: process_rrop(0x42); break;
1161 
        case tk_shrui: process_shifti(0x52); break;
1162 
        case tk_smr: process_lmr(0x30); break;
1163 
        case tk_ss:  segprefix = 2; break;
1164 
        case tk_sub:  process_rrop(0x05); break;
1165 
        case tk_subi: process_riop(0x05); break;
1166 
        case tk_subu: process_rrop(0x15); break;
1167 
        case tk_subui: process_riop(0x15); break;
1168 
        case tk_sxb: process_rop(0x08); break;
1169 
        case tk_sxc: process_rop(0x09); break;
1170 
        case tk_sxh: process_rop(0x0A); break;
1171 
        case tk_sw:  process_store(0xa3); break;
1172 
        case tk_swap: process_rop(0x03); break;
1173 
        case tk_xor: process_rrop(0x22); break;
1174 
        case tk_xori: process_riop(0x0E); break;
1175 
        case tk_id:  process_label(); break;
1176 
        }
1177 
        NextToken();
1178 
    }
1179 
j1:
1180 
    ;
1181 
}
1182 
 

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