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d45a4bef JB |
1 | /* r8c.opc --- semantics for r8c opcodes. -*- mode: c -*- |
2 | ||
6aba47ca | 3 | Copyright (C) 2005, 2007 Free Software Foundation, Inc. |
d45a4bef JB |
4 | Contributed by Red Hat, Inc. |
5 | ||
6 | This file is part of the GNU simulators. | |
7 | ||
8 | The GNU simulators are free software; you can redistribute them and/or | |
9 | modify them under the terms of the GNU General Public License as | |
10 | published by the Free Software Foundation; either version 2 of the | |
11 | License, or (at your option) any later version. | |
12 | ||
13 | The GNU simulators are distributed in the hope that they will be | |
14 | useful, but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with the GNU simulators; if not, write to the Free Software | |
20 | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
21 | 02110-1301, USA */ | |
22 | ||
23 | ||
24 | #include <stdio.h> | |
25 | #include <stdlib.h> | |
26 | ||
27 | #include "cpu.h" | |
28 | #include "mem.h" | |
29 | #include "misc.h" | |
30 | #include "int.h" | |
31 | ||
32 | #define AU __attribute__((unused)) | |
33 | ||
34 | #define tprintf if (trace) printf | |
35 | ||
36 | static unsigned char | |
37 | getbyte () | |
38 | { | |
39 | int tsave = trace; | |
40 | unsigned char b; | |
41 | ||
42 | if (trace == 1) | |
43 | trace = 0; | |
44 | b = mem_get_pc (); | |
45 | regs.r_pc ++; | |
46 | trace = tsave; | |
47 | return b; | |
48 | } | |
49 | ||
50 | #define M16C_ONLY() /* FIXME: add something here */ | |
51 | ||
52 | #define GETBYTE() (op[opi++] = getbyte()) | |
53 | ||
54 | #define UNSUPPORTED() unsupported("unsupported", orig_pc) | |
55 | #define NOTYET() unsupported("unimplemented", orig_pc) | |
56 | ||
57 | static void | |
58 | unsupported (char *tag, int orig_pc) | |
59 | { | |
60 | int i; | |
61 | printf("%s opcode at %08x\n", tag, orig_pc); | |
62 | regs.r_pc = orig_pc; | |
63 | for (i=0; i<2; i++) | |
64 | { | |
65 | int b = mem_get_pc(); | |
66 | printf(" %s", bits(b>>4, 4)); | |
67 | printf(" %s", bits(b, 4)); | |
68 | regs.r_pc ++; | |
69 | } | |
70 | printf("\n"); | |
71 | regs.r_pc = orig_pc; | |
72 | for (i=0; i<6; i++) | |
73 | { | |
74 | printf(" %02x", mem_get_pc ()); | |
75 | regs.r_pc ++; | |
76 | } | |
77 | printf("\n"); | |
78 | exit(1); | |
79 | } | |
80 | ||
81 | static int | |
82 | IMM(bw) | |
83 | { | |
84 | int rv = getbyte (); | |
85 | if (bw) | |
86 | rv = rv + 256 * getbyte(); | |
87 | if (bw == 2) | |
88 | rv = rv + 65536 * getbyte(); | |
89 | return rv; | |
90 | } | |
91 | ||
92 | #define IMM4() (immm >= 8 ? 7 - immm : immm + 1) | |
93 | ||
94 | #define UNARY_SOP \ | |
95 | dc = decode_srcdest4 (dest, w); \ | |
96 | v = sign_ext (get_src (dc), w?16:8); | |
97 | ||
98 | #define UNARY_UOP \ | |
99 | dc = decode_srcdest4 (dest, w); \ | |
100 | v = get_src (dc); | |
101 | ||
102 | #define BINARY_SOP \ | |
103 | sc = decode_srcdest4 (srcx, w); \ | |
104 | dc = decode_srcdest4 (dest, w); \ | |
105 | a = sign_ext (get_src (sc), w?16:8); \ | |
106 | b = sign_ext (get_src (dc), w?16:8); | |
107 | ||
108 | #define BINARY_UOP \ | |
109 | sc = decode_srcdest4 (srcx, w); \ | |
110 | dc = decode_srcdest4 (dest, w); \ | |
111 | a = get_src (sc); \ | |
112 | b = get_src (dc); | |
113 | ||
114 | #define carry (FLAG_C ? 1 : 0) | |
115 | ||
116 | static void | |
117 | cmp (int d, int s, int w) | |
118 | { | |
119 | int a, b, f=0; | |
120 | int mask = w ? 0xffff : 0xff; | |
121 | a = d - s; | |
122 | b = sign_ext (d, w?16:8) - sign_ext (s, w?16:8); | |
123 | tprintf ("cmp: %x - %x = %08x, %x - %x = %d\n", | |
124 | d, s, a, | |
125 | sign_ext(d,w?16:8), sign_ext(s,w?16:8), b); | |
126 | ||
127 | if (b == 0) | |
128 | f |= FLAGBIT_Z; | |
129 | if (b & (w ? 0x8000 : 0x80)) | |
130 | f |= FLAGBIT_S; | |
131 | if ((d & mask) >= (s & mask)) | |
132 | f |= FLAGBIT_C; | |
133 | if (b < (w ? -32768 : -128) || b > (w ? 32767 : 127)) | |
134 | f |= FLAGBIT_O; | |
135 | ||
136 | set_flags (FLAGBIT_Z | FLAGBIT_S | FLAGBIT_O | FLAGBIT_C, f); | |
137 | } | |
138 | ||
139 | static void | |
140 | div_op (int s, int u, int x, int w) | |
141 | { | |
142 | srcdest sc; | |
143 | int v, a, b; | |
144 | ||
145 | if (s == -1) | |
146 | s = IMM(w); | |
147 | else | |
148 | { | |
149 | sc = decode_srcdest4 (s, w); | |
150 | s = get_src (sc); | |
151 | } | |
152 | ||
153 | v = get_reg (w ? r2r0 : r0); | |
154 | ||
155 | if (!u) | |
156 | { | |
157 | s = sign_ext (s, w ? 16 : 8); | |
158 | v = sign_ext (v, w ? 16 : 8); | |
159 | } | |
160 | ||
161 | if (s == 0) | |
162 | { | |
163 | set_flags (FLAGBIT_O, FLAGBIT_O); | |
164 | return; | |
165 | } | |
166 | ||
167 | if (u) | |
168 | { | |
169 | a = (unsigned int)v / (unsigned int)s; | |
170 | b = (unsigned int)v % (unsigned int)s; | |
171 | } | |
172 | else | |
173 | { | |
174 | a = v / s; | |
175 | b = v % s; | |
176 | } | |
177 | if (x) | |
178 | { | |
179 | if ((s > 0 && b < 0) | |
180 | || (s < 0 && b > 0)) | |
181 | { | |
182 | a --; | |
183 | b += s; | |
184 | } | |
185 | } | |
186 | tprintf ("%d / %d = %d rem %d\n", v, s, a, b); | |
187 | if ((!u && (a > (w ? 32767 : 127) | |
188 | || a < (w ? -32768 : -129))) | |
189 | || (u && (a > (w ? 65536 : 255)))) | |
190 | set_flags (FLAGBIT_O, FLAGBIT_O); | |
191 | else | |
192 | set_flags (FLAGBIT_O, 0); | |
193 | ||
194 | put_reg (w ? r0 : r0l, a); | |
195 | put_reg (w ? r2 : r0h, b); | |
196 | } | |
197 | ||
198 | static void | |
199 | rot_op (srcdest sd, int rotc, int count) | |
200 | { | |
201 | int mask = (sd.bytes == 2) ? 0xffff : 0xff; | |
202 | int msb = (sd.bytes == 2) ? 0x8000 : 0x80; | |
203 | int v = get_src (sd); | |
204 | int c = carry, ct; | |
205 | ||
206 | tprintf("%s %x by %d\n", rotc ? "rotc" : "rot", v, count); | |
207 | tprintf (": %s %d\n", bits(v, 8*sd.bytes), c); | |
208 | while (count > 0) | |
209 | { | |
210 | ct = (v & msb) ? 1 : 0; | |
211 | v <<= 1; | |
212 | v |= rotc ? c : ct; | |
213 | v &= mask; | |
214 | c = ct; | |
215 | tprintf (": %s %d\n", bits(v, 8*sd.bytes), c); | |
216 | count --; | |
217 | } | |
218 | while (count < 0) | |
219 | { | |
220 | ct = v & 1; | |
221 | v >>= 1; | |
222 | v |= (rotc ? c : ct) * msb; | |
223 | c = ct; | |
224 | tprintf (": %s %d\n", bits(v, 8*sd.bytes), c); | |
225 | count ++; | |
226 | } | |
227 | put_dest (sd, v); | |
228 | set_szc (v, sd.bytes, c); | |
229 | } | |
230 | ||
231 | static void | |
232 | shift_op (srcdest sd, int arith, int count) | |
233 | { | |
234 | int mask = (sd.bytes == 2) ? 0xffff : 0xff; | |
235 | int msb = (sd.bytes == 2) ? 0x8000 : 0x80; | |
236 | int v = get_src (sd); | |
237 | int c = 0; | |
238 | ||
239 | if (sd.bytes == 4) | |
240 | { | |
241 | mask = 0xffffffffU; | |
242 | msb = 0x80000000U; | |
727b6b4b DD |
243 | if (count > 16 || count < -16) |
244 | { | |
245 | fprintf(stderr, "Error: SI shift of %d undefined\n", count); | |
246 | exit(1); | |
247 | } | |
248 | if (count > 16) | |
249 | count = (count - 1) % 16 + 1; | |
250 | if (count < -16) | |
251 | count = -((-count - 1) % 16 + 1); | |
d45a4bef JB |
252 | } |
253 | ||
254 | tprintf("%s %x by %d\n", arith ? "sha" : "shl", v, count); | |
255 | tprintf (": %s %d\n", bits(v, 8*sd.bytes), c); | |
256 | while (count > 0) | |
257 | { | |
258 | c = (v & msb) ? 1 : 0; | |
259 | v <<= 1; | |
260 | v &= mask; | |
261 | tprintf (": %s %d\n", bits(v, 8*sd.bytes), c); | |
262 | count --; | |
263 | } | |
264 | while (count < 0) | |
265 | { | |
266 | c = v & 1; | |
267 | if (arith) | |
268 | v = (v & msb) | (v >> 1); | |
269 | else | |
270 | v = (v >> 1) & (msb - 1); | |
271 | tprintf (": %s %d\n", bits(v, 8*sd.bytes), c); | |
272 | count ++; | |
273 | } | |
274 | put_dest (sd, v); | |
275 | set_szc (v, sd.bytes, c); | |
276 | } | |
277 | ||
278 | #define MATH_OP(dc,s,c,op,carryrel) \ | |
279 | a = get_src(dc); \ | |
280 | b = s & b2mask[dc.bytes]; \ | |
281 | v2 = a op b op c; \ | |
282 | tprintf("0x%x " #op " 0x%x " #op " 0x%x = 0x%x\n", a, b, c, v2); \ | |
283 | a = sign_ext (a, dc.bytes * 8); \ | |
284 | b = sign_ext (s, dc.bytes * 8); \ | |
285 | v = a op b op c; \ | |
286 | tprintf("%d " #op " %d " #op " %d = %d\n", a, b, c, v); \ | |
287 | set_oszc (v, dc.bytes, v2 carryrel); \ | |
288 | put_dest (dc, v2); | |
289 | ||
290 | #define BIT_OP(field,expr) \ | |
291 | dc = decode_bit (field); \ | |
292 | b = get_bit (dc); \ | |
293 | v = expr; \ | |
294 | tprintf ("b=%d, carry=%d, %s = %d\n", b, carry, #expr, v); \ | |
295 | put_bit (dc, v); | |
296 | ||
297 | #define BIT_OPC(field,expr) \ | |
298 | dc = decode_bit (field); \ | |
299 | b = get_bit (dc); \ | |
300 | v = expr; \ | |
301 | tprintf ("b=%d, carry=%d, %s = %d\n", b, carry, #expr, v); \ | |
302 | set_c (v); | |
303 | ||
727b6b4b DD |
304 | /* The "BMcnd dest" opcode uses a different encoding for the */ |
305 | /* condition than other opcodes. */ | |
306 | static int bmcnd_cond_map[] = { | |
307 | 0, 1, 2, 3, 8, 9, 10, 11, 4, 5, 6, 7, 12, 13, 14, 15 | |
308 | }; | |
309 | ||
d45a4bef JB |
310 | int |
311 | decode_r8c() | |
312 | { | |
313 | unsigned char op[40]; | |
314 | int opi = 0; | |
315 | int v, v2, a, b; | |
316 | int orig_pc = get_reg (pc); | |
317 | srcdest sc, dc; | |
318 | int imm; | |
319 | ||
320 | step_result = M32C_MAKE_STEPPED (); | |
321 | ||
322 | tprintf("trace: decode pc = %05x\n", orig_pc); | |
323 | ||
324 | /** VARY dst 011 100 101 110 111 */ | |
325 | ||
326 | /** 0111 011w 1111 dest ABS.size dest */ | |
327 | ||
328 | UNARY_SOP; | |
329 | a = v<0 ? -v : v; | |
330 | tprintf("abs(%d) = %d\n", v, a); | |
331 | set_osz(a, w+1); | |
332 | put_dest (dc, a); | |
333 | ||
334 | /** 0111 011w 0110 dest ADC.size #IMM,dest */ | |
335 | ||
336 | dc = decode_srcdest4(dest, w); | |
337 | imm = IMM(w); | |
338 | MATH_OP (dc, imm, carry, +, > (w?0xffff:0xff)); | |
339 | ||
340 | /** 1011 000w srcx dest ADC.size src,dest */ | |
341 | ||
342 | sc = decode_srcdest4(srcx, w); | |
343 | dc = decode_srcdest4(dest, w); | |
344 | b = get_src (sc); | |
345 | MATH_OP (dc, b, carry, +, > (w?0xffff:0xff)); | |
346 | ||
347 | /** 0111 011w 1110 dest ADCF.size dest */ | |
348 | ||
349 | dc = decode_srcdest4(dest, w); | |
350 | MATH_OP (dc, 0, carry, +, > (w?0xffff:0xff)); | |
351 | ||
352 | /** 0111 011w 0100 dest ADD.size:G #imm,dest */ | |
353 | ||
354 | dc = decode_srcdest4(dest, w); | |
355 | imm = IMM(w); | |
356 | MATH_OP (dc, imm, 0, +, > (w?0xffff:0xff)); | |
357 | ||
358 | /** 1100 100w immm dest ADD.size:Q #IMM,dest */ | |
359 | ||
360 | dc = decode_srcdest4(dest, w); | |
361 | imm = sign_ext (immm, 4); | |
362 | MATH_OP (dc, imm, 0, +, > (w?0xffff:0xff)); | |
363 | ||
364 | /** 1000 0dst ADD.B:S #IMM8,dst */ | |
365 | ||
366 | imm = IMM(0); | |
367 | dc = decode_dest3 (dst, 0); | |
368 | MATH_OP (dc, imm, 0, +, > 0xff); | |
369 | ||
370 | /** 1010 000w srcx dest ADD.size:G src,dest */ | |
371 | ||
372 | sc = decode_srcdest4(srcx, w); | |
373 | dc = decode_srcdest4(dest, w); | |
374 | b = get_src (sc); | |
375 | MATH_OP (dc, b, 0, +, > (w?0xffff:0xff)); | |
376 | ||
377 | /** 0010 0d sr ADD.B:S src,R0L/R0H */ | |
378 | ||
379 | sc = decode_src2 (sr, 0, d); | |
380 | dc = decode_dest1 (d, 0); | |
381 | b = get_src (sc); | |
382 | MATH_OP (dc, b, 0, +, > 0xff); | |
383 | ||
384 | /** 0111 110w 1110 1011 ADD.size:G #IMM,sp */ | |
385 | ||
386 | dc = reg_sd (sp); | |
387 | imm = sign_ext (IMM(w), w?16:8); | |
388 | MATH_OP (dc, imm, 0, +, > 0xffff); | |
389 | ||
390 | /** 0111 1101 1011 immm ADD.size:Q #IMM,sp */ | |
391 | ||
392 | dc = reg_sd (sp); | |
393 | imm = sign_ext (immm, 4); | |
394 | MATH_OP (dc, imm, 0, +, > 0xffff); | |
395 | ||
396 | /** 1111 100w immm dest ADJNZ.size #IMM,dest,label */ | |
397 | ||
398 | UNARY_UOP; | |
399 | imm = sign_ext(immm, 4); | |
400 | tprintf("%x + %d = %x\n", v, imm, v+imm); | |
401 | v += imm; | |
402 | put_dest (dc, v); | |
403 | a = sign_ext (IMM(0), 8); | |
404 | if ((v & (w ? 0xffff : 0xff)) != 0) | |
405 | { | |
406 | tprintf("jmp: %x + 2 + %d = ", get_reg (pc), a); | |
407 | put_reg (pc, orig_pc + 2 + a); | |
408 | tprintf("%x\n", get_reg (pc)); | |
409 | } | |
410 | ||
411 | /** 0111 011w 0010 dest AND.size:G #IMM,dest */ | |
412 | ||
413 | UNARY_UOP; | |
414 | imm = IMM(w); | |
415 | tprintf ("%x & %x = %x\n", v, imm, v & imm); | |
416 | v &= imm; | |
417 | set_sz (v, w+1); | |
418 | put_dest (dc, v); | |
419 | ||
420 | /** 1001 0dst AND.B:S #IMM8,dest */ | |
421 | ||
422 | imm = IMM(0); | |
423 | dc = decode_dest3 (dst, 0); | |
424 | v = get_src (dc); | |
425 | tprintf("%x & %x = %x\n", v, imm, v & imm); | |
426 | v &= imm; | |
427 | set_sz (v, 1); | |
428 | put_dest (dc, v); | |
429 | ||
430 | /** 1001 000w srcx dest AND.size:G src.dest */ | |
431 | ||
432 | BINARY_UOP; | |
433 | tprintf ("%x & %x = %x\n", a, b, a & b); | |
434 | v = a & b; | |
435 | set_sz (v, w+1); | |
436 | put_dest (dc, v); | |
437 | ||
438 | /** 0001 0d sr AND.B:S src,R0L/R0H */ | |
439 | ||
440 | sc = decode_src2 (sr, 0, d); | |
441 | dc = decode_dest1 (d, 0); | |
442 | a = get_src (sc); | |
443 | b = get_src (dc); | |
444 | v = a & b; | |
445 | tprintf("%x & %x = %x\n", a, b, v); | |
446 | set_sz (v, 1); | |
447 | put_dest (dc, v); | |
448 | ||
449 | /** 0111 1110 0100 srcx BAND src */ | |
450 | ||
451 | BIT_OPC (srcx, b & carry); | |
452 | ||
453 | /** 0111 1110 1000 dest BCLR:G dest */ | |
454 | ||
455 | dc = decode_bit (dest); | |
456 | put_bit (dc, 0); | |
457 | ||
458 | /** 0100 0bit BCLR:S bit,base:11[SB] */ | |
459 | ||
460 | dc = decode_bit11 (bit); | |
461 | put_bit (dc, 0); | |
462 | ||
463 | /** 0111 1110 0010 dest BMcnd dest */ | |
464 | ||
465 | dc = decode_bit (dest); | |
727b6b4b | 466 | if (condition_true (bmcnd_cond_map [IMM (0) & 15])) |
d45a4bef JB |
467 | put_bit (dc, 1); |
468 | else | |
469 | put_bit (dc, 0); | |
470 | ||
471 | /** 0111 1101 1101 cond BMcnd C */ | |
472 | ||
473 | if (condition_true (cond)) | |
474 | set_c (1); | |
475 | else | |
476 | set_c (0); | |
477 | ||
478 | /** 0111 1110 0101 srcx BNAND src */ | |
479 | ||
480 | BIT_OPC (srcx, !b & carry); | |
481 | ||
482 | /** 0111 1110 0111 srcx BNOR src */ | |
483 | ||
484 | BIT_OPC (srcx, !b | carry); | |
485 | ||
486 | /** 0111 1110 1010 dest BNOT:G dest */ | |
487 | ||
488 | BIT_OP (dest, !b); | |
489 | ||
490 | /** 0101 0bit BNOT:S bit,base:11[SB] */ | |
491 | ||
492 | dc = decode_bit11 (bit); | |
493 | put_bit (dc, !get_bit (dc)); | |
494 | ||
495 | /** 0111 1110 0011 srcx BNTST src */ | |
496 | ||
497 | dc = decode_bit (srcx); | |
498 | b = get_bit (dc); | |
499 | set_zc (!b, !b); | |
500 | ||
501 | /** 0111 1110 1101 srcx BNXOR src */ | |
502 | ||
503 | BIT_OPC (srcx, !b ^ carry); | |
504 | ||
505 | /** 0111 1110 0110 srcx BOR src */ | |
506 | ||
507 | BIT_OPC (srcx, b | carry); | |
508 | ||
509 | /** 0000 0000 BRK */ | |
510 | ||
511 | /* We report the break to our caller with the PC still pointing at the | |
512 | breakpoint instruction. */ | |
513 | put_reg (pc, orig_pc); | |
514 | if (verbose) | |
515 | printf("[break]\n"); | |
516 | return M32C_MAKE_HIT_BREAK (); | |
517 | ||
518 | /** 0111 1110 1001 dest BSET:G dest */ | |
519 | ||
520 | dc = decode_bit (dest); | |
521 | put_bit (dc, 1); | |
522 | ||
523 | /** 0100 1bit BSET:S bit,base:11[SB] */ | |
524 | ||
525 | dc = decode_bit11 (bit); | |
526 | put_bit (dc, 1); | |
527 | ||
528 | /** 0111 1110 1011 srcx BTST:G src */ | |
529 | ||
530 | dc = decode_bit (srcx); | |
531 | b = get_bit (dc); | |
532 | set_zc (!b, b); | |
533 | ||
534 | /** 0101 1bit BTST:S bit,base:11[SB] */ | |
535 | ||
536 | dc = decode_bit11 (bit); | |
537 | b = get_bit (dc); | |
538 | set_zc (!b, b); | |
539 | ||
540 | /** 0111 1110 0000 dest BTSTC dest */ | |
541 | ||
542 | dc = decode_bit (dest); | |
543 | b = get_bit (dc); | |
544 | set_zc (!b, b); | |
545 | put_bit (dc, 0); | |
546 | ||
547 | /** 0111 1110 0001 dest BTSTS dest */ | |
548 | ||
549 | dc = decode_bit (dest); | |
550 | b = get_bit (dc); | |
551 | set_zc (!b, b); | |
552 | put_bit (dc, 1); | |
553 | ||
554 | /** 0111 1110 1100 srcx BXOR src */ | |
555 | ||
556 | BIT_OPC (srcx, b ^ carry); | |
557 | ||
558 | /** 0111 011w 1000 dest CMP.size:G #IMM,dest */ | |
559 | ||
560 | UNARY_UOP; | |
561 | imm = IMM(w); | |
562 | cmp (v, imm, w); | |
563 | ||
564 | /** 1101 000w immm dest CMP.size:Q #IMM,dest */ | |
565 | ||
566 | UNARY_UOP; | |
567 | immm = sign_ext (immm, 4); | |
568 | cmp (v, immm, w); | |
569 | ||
570 | /** 1110 0dst CMP.B:S #IMM8,dest */ | |
571 | ||
572 | imm = IMM(0); | |
573 | dc = decode_dest3 (dst, 0); | |
574 | v = get_src (dc); | |
575 | cmp (v, imm, 0); | |
576 | ||
577 | /** 1100 000w srcx dest CMP.size:G src,dest */ | |
578 | ||
579 | BINARY_UOP; | |
580 | cmp(b, a, w); | |
581 | ||
582 | /** 0011 1d sr CMP.B:S src,R0L/R0H */ | |
583 | ||
584 | sc = decode_src2 (sr, 0, d); | |
585 | dc = decode_dest1 (d, 0); | |
586 | a = get_src (sc); | |
587 | b = get_src (dc); | |
588 | cmp (b, a, 0); | |
589 | ||
590 | /** 0111 110w 1110 i1c s DADC,DADD,DSBB,DSUB */ | |
591 | ||
592 | /* w = width, i = immediate, c = carry, s = subtract */ | |
593 | ||
594 | int src = i ? IMM(w) : get_reg (w ? r1 : r0h); | |
595 | int dest = get_reg (w ? r0 : r0l); | |
596 | int res; | |
597 | ||
598 | src = bcd2int(src, w); | |
599 | dest = bcd2int(dest, w); | |
600 | ||
601 | tprintf("decimal: %d %s %d", dest, s?"-":"+", src); | |
602 | if (c) | |
603 | tprintf(" c=%d", carry); | |
604 | ||
605 | if (!s) | |
606 | { | |
607 | res = dest + src; | |
608 | if (c) | |
609 | res += carry; | |
610 | c = res > (w ? 9999 : 99); | |
611 | } | |
612 | else | |
613 | { | |
614 | res = dest - src; | |
615 | if (c) | |
616 | res -= (1-carry); | |
617 | c = res >= 0; | |
618 | if (res < 0) | |
619 | res += w ? 10000 : 100; | |
620 | } | |
621 | ||
622 | res = int2bcd (res, w); | |
623 | tprintf(" = %x\n", res); | |
624 | ||
625 | set_szc (res, w+1, c); | |
626 | ||
627 | put_reg (w ? r0 : r0l, res); | |
628 | ||
629 | /** 1010 1dst DEC.B dest */ | |
630 | ||
631 | dc = decode_dest3 (dst, 0); | |
632 | v = get_src (dc); | |
633 | tprintf("%x -- = %x\n", v, v-1); | |
634 | v --; | |
635 | set_sz (v, 1); | |
636 | put_dest (dc, v); | |
637 | ||
638 | /** 1111 d010 DEC.W dest */ | |
639 | ||
640 | v = get_reg (d ? a1 : a0); | |
641 | tprintf("%x -- = %x\n", v, v-1); | |
642 | v --; | |
643 | set_sz (v, 2); | |
644 | put_reg (d ? a1 : a0, v); | |
645 | ||
646 | /** 0111 110w 1110 0001 DIV.size #IMM */ | |
647 | ||
648 | div_op (-1, 0, 0, w); | |
649 | ||
650 | /** 0111 011w 1101 srcx DIV.size src */ | |
651 | ||
652 | div_op (srcx, 0, 0, w); | |
653 | ||
654 | /** 0111 110w 1110 0000 DIVU.size #IMM */ | |
655 | ||
656 | div_op (-1, 1, 0, w); | |
657 | ||
658 | /** 0111 011w 1100 srcx DIVU.size src */ | |
659 | ||
660 | div_op (srcx, 1, 0, w); | |
661 | ||
662 | /** 0111 110w 1110 0011 DIVX.size #IMM */ | |
663 | ||
664 | div_op (-1, 0, 1, w); | |
665 | ||
666 | /** 0111 011w 1001 srcx DIVX.size src */ | |
667 | ||
668 | div_op (srcx, 0, 1, w); | |
669 | ||
670 | /** 0111 1100 1111 0010 ENTER #IMM8 */ | |
671 | ||
672 | imm = IMM(0); | |
673 | put_reg (sp, get_reg (sp) - 2); | |
674 | mem_put_hi (get_reg (sp), get_reg (fb)); | |
675 | put_reg (fb, get_reg (sp)); | |
676 | put_reg (sp, get_reg (sp) - imm); | |
677 | ||
678 | /** 0111 1101 1111 0010 EXITD */ | |
679 | ||
680 | put_reg (sp, get_reg (fb)); | |
681 | put_reg (fb, mem_get_hi (get_reg (sp))); | |
682 | put_reg (sp, get_reg (sp) + 2); | |
683 | put_reg (pc, mem_get_psi (get_reg (sp))); | |
684 | put_reg (sp, get_reg (sp) + 3); | |
685 | ||
686 | /** 0111 1100 0110 dest EXTS.B dest */ | |
687 | ||
688 | dc = decode_srcdest4 (dest, 0); | |
689 | v = sign_ext (get_src (dc), 8); | |
690 | dc = widen_sd (dc); | |
691 | put_dest (dc, v); | |
692 | set_sz (v, 1); | |
693 | ||
694 | /** 0111 1100 1111 0011 EXTS.W R0 */ | |
695 | ||
696 | v = sign_ext (get_reg (r0), 16); | |
697 | put_reg (r2r0, v); | |
698 | set_sz (v, 2); | |
699 | ||
700 | /** 1110 1011 0flg 0101 FCLR dest */ | |
701 | ||
702 | set_flags (1 << flg, 0); | |
703 | ||
704 | /** 1110 1011 0flg 0100 FSET dest */ | |
705 | ||
706 | set_flags (1 << flg, 1 << flg); | |
707 | ||
708 | /** 1010 0dst INC.B dest */ | |
709 | ||
710 | dc = decode_dest3 (dst, 0); | |
711 | v = get_src (dc); | |
712 | tprintf("%x ++ = %x\n", v, v+1); | |
713 | v ++; | |
714 | set_sz (v, 1); | |
715 | put_dest (dc, v); | |
716 | ||
717 | /** 1011 d010 INC.W dest */ | |
718 | ||
719 | v = get_reg (d ? a1 : a0); | |
720 | tprintf("%x ++ = %x\n", v, v+1); | |
721 | v ++; | |
722 | set_sz (v, 2); | |
723 | put_reg (d ? a1 : a0, v); | |
724 | ||
725 | /** 1110 1011 11vector INT #imm */ | |
726 | ||
727 | trigger_based_interrupt (vector); | |
728 | ||
729 | /** 1111 0110 INTO */ | |
730 | ||
731 | if (FLAG_O) | |
732 | trigger_fixed_interrupt (0xffe0); | |
733 | ||
734 | /** 0110 1cnd Jcnd label */ | |
735 | ||
736 | v = sign_ext (IMM(0), 8); | |
737 | if (condition_true (cnd)) | |
738 | put_reg (pc, orig_pc + 1 + v); | |
739 | ||
740 | /** 0111 1101 1100 cond Jcnd label */ | |
741 | ||
742 | v = sign_ext (IMM(0), 8); | |
743 | if (condition_true (cond)) | |
744 | put_reg (pc, orig_pc + 2 + v); | |
745 | ||
746 | /** 0110 0dsp JMP.S label */ | |
747 | ||
748 | put_reg (pc, orig_pc + 2 + dsp); | |
749 | ||
750 | /** 1111 1110 JMP.B label */ | |
751 | ||
752 | imm = sign_ext (IMM(0), 8); | |
753 | if (imm == -1) | |
754 | { | |
755 | if (verbose) | |
756 | printf("[jmp-to-self detected as exit]\n"); | |
757 | return M32C_MAKE_HIT_BREAK (); | |
758 | } | |
759 | put_reg (pc, orig_pc + 1 + imm); | |
760 | ||
761 | /** 1111 0100 JMP.W label */ | |
762 | ||
763 | imm = sign_ext (IMM(1), 16); | |
764 | put_reg (pc, orig_pc + 1 + imm); | |
765 | ||
766 | /** 1111 1100 JMP.A label */ | |
767 | ||
768 | imm = IMM(2); | |
769 | put_reg (pc, imm); | |
770 | ||
771 | /** 0111 1101 0010 srcx JMPI.W src */ | |
772 | ||
773 | sc = decode_jumpdest (srcx, 1); | |
774 | a = get_src (sc); | |
775 | a = sign_ext (a, 16); | |
776 | put_reg (pc, orig_pc + a); | |
777 | ||
778 | /** 0111 1101 0000 srcx JMPI.A src */ | |
779 | ||
780 | sc = decode_jumpdest (srcx, 0); | |
781 | a = get_src (sc); | |
782 | put_reg (pc, a); | |
783 | ||
784 | /** 1110 1110 JMPS #IMM8 */ | |
785 | ||
786 | M16C_ONLY(); | |
787 | ||
788 | imm = IMM(0); | |
789 | a = 0xf0000 + mem_get_hi (0xffffe - imm * 2); | |
790 | put_reg (pc, a); | |
791 | ||
792 | /** 1111 0101 JSR.W label */ | |
793 | ||
794 | imm = sign_ext (IMM(1), 16); | |
795 | put_reg (sp, get_reg (sp) - 3); | |
796 | mem_put_psi (get_reg (sp), get_reg (pc)); | |
797 | put_reg (pc, orig_pc + imm + 1); | |
798 | ||
799 | /** 1111 1101 JSR.A label */ | |
800 | ||
801 | imm = IMM(2); | |
802 | put_reg (sp, get_reg (sp) - 3); | |
803 | mem_put_psi (get_reg (sp), get_reg (pc)); | |
804 | put_reg (pc, imm); | |
805 | ||
806 | /** 0111 1101 0011 srcx JSRI.W src */ | |
807 | ||
808 | sc = decode_jumpdest (srcx, 1); | |
809 | a = get_src (sc); | |
810 | a = sign_ext (a, 16); | |
811 | ||
812 | put_reg (sp, get_reg (sp) - 3); | |
813 | mem_put_psi (get_reg (sp), get_reg (pc)); | |
814 | put_reg (pc, orig_pc + a); | |
815 | ||
816 | /** 0111 1101 0001 srcx JSRI.A src */ | |
817 | ||
818 | sc = decode_jumpdest (srcx, 0); | |
819 | a = get_src (sc); | |
820 | ||
821 | put_reg (sp, get_reg (sp) - 3); | |
822 | mem_put_psi (get_reg (sp), get_reg (pc)); | |
823 | put_reg (pc, a); | |
824 | ||
825 | /** 1110 1111 JSRS #IMM8 */ | |
826 | ||
827 | M16C_ONLY(); | |
828 | ||
829 | imm = IMM(0); | |
830 | a = 0xf0000 + mem_get_hi (0xffffe - imm * 2); | |
831 | ||
832 | put_reg (sp, get_reg (sp) - 3); | |
833 | mem_put_psi (get_reg (sp), get_reg (pc)); | |
834 | put_reg (pc, a); | |
835 | ||
836 | /** 1110 1011 0reg 0000 LDC #IMM16,dest */ | |
837 | ||
838 | dc = decode_cr (reg); | |
839 | imm = IMM(1); | |
840 | put_dest (dc, imm); | |
841 | ||
842 | /** 0111 1010 1reg srcx LDC src,dest */ | |
843 | ||
844 | dc = decode_cr (reg); | |
845 | sc = decode_srcdest4 (srcx,1); | |
846 | put_dest (dc, get_src (sc)); | |
847 | ||
848 | /** 0111 1100 1111 0000 LDCTX abs16,abs20 */ | |
849 | ||
850 | NOTYET(); | |
851 | ||
852 | /** 0111 010w 1000 dest LDE.size abs20,dest */ | |
853 | ||
854 | dc = decode_srcdest4 (dest, w); | |
855 | imm = IMM(2); | |
856 | if (w) | |
857 | v = mem_get_hi (imm); | |
858 | else | |
859 | v = mem_get_qi (imm); | |
860 | put_dest (dc, v); | |
861 | ||
862 | /** 0111 010w 1001 dest LDE.size dsp:20[a0], dest */ | |
863 | ||
864 | dc = decode_srcdest4 (dest, w); | |
865 | imm = IMM(2) + get_reg (a0); | |
866 | if (w) | |
867 | v = mem_get_hi (imm); | |
868 | else | |
869 | v = mem_get_qi (imm); | |
870 | put_dest (dc, v); | |
871 | ||
872 | /** 0111 010w 1010 dest LDE.size [a1a0],dest */ | |
873 | ||
874 | dc = decode_srcdest4 (dest, w); | |
875 | imm = get_reg (a1a0); | |
876 | if (w) | |
877 | v = mem_get_hi (imm); | |
878 | else | |
879 | v = mem_get_qi (imm); | |
880 | put_dest (dc, v); | |
881 | ||
882 | /** 0111 1101 1010 0imm LDIPL #IMM */ | |
883 | ||
884 | set_flags (0x700, imm*0x100); | |
885 | ||
886 | /** 0111 010w 1100 dest MOV.size:G #IMM,dest */ | |
887 | ||
f4f21c20 | 888 | dc = decode_srcdest4 (dest, w); |
d45a4bef JB |
889 | imm = IMM(w); |
890 | v = imm; | |
891 | tprintf("%x = %x\n", v, v); | |
892 | set_sz(v, w+1); | |
893 | put_dest (dc, v); | |
894 | ||
895 | /** 1101 100w immm dest MOV.size:Q #IMM,dest */ | |
896 | ||
f4f21c20 | 897 | dc = decode_srcdest4 (dest, w); |
d45a4bef JB |
898 | v = sign_ext (immm, 4); |
899 | tprintf ("%x = %x\n", v, v); | |
900 | set_sz (v, w+1); | |
901 | put_dest (dc, v); | |
902 | ||
903 | /** 1100 0dst MOV.B:S #IMM8,dest */ | |
904 | ||
905 | imm = IMM(0); | |
906 | dc = decode_dest3 (dst, 0); | |
907 | v = imm; | |
908 | tprintf("%x = %x\n", v, v); | |
909 | set_sz (v, 1); | |
910 | put_dest (dc, v); | |
911 | ||
912 | /** 1w10 d010 MOV.size:S #IMM,dest */ | |
913 | ||
914 | /* Note that for w, 0=W and 1=B unlike the usual meaning. */ | |
915 | v = IMM(1-w); | |
916 | tprintf("%x = %x\n", v, v); | |
917 | set_sz (v, 2-w); | |
918 | put_reg (d ? a1 : a0, v); | |
919 | ||
920 | /** 1011 0dst MOV.B:Z #0,dest */ | |
921 | ||
922 | dc = decode_dest3 (dst, 0); | |
923 | v = 0; | |
924 | set_sz (v, 1); | |
925 | put_dest (dc, v); | |
926 | ||
927 | /** 0111 001w srcx dest MOV.size:G src,dest */ | |
928 | ||
929 | sc = decode_srcdest4 (srcx, w); | |
930 | dc = decode_srcdest4 (dest, w); | |
931 | v = get_src (sc); | |
932 | set_sz (v, w+1); | |
933 | put_dest (dc, v); | |
934 | ||
935 | /** 0011 0d sr MOV.B:S src,dest */ | |
936 | ||
937 | sc = decode_src2 (sr, 0, d); | |
938 | v = get_src (sc); | |
939 | set_sz (v, 1); | |
940 | put_reg (d ? a1 : a0, v); | |
941 | ||
942 | /** 0000 0s ds MOV.B:S R0L/R0H,dest */ | |
943 | ||
944 | if (ds == 0) | |
945 | UNSUPPORTED(); | |
946 | dc = decode_src2 (ds, 0, s); | |
947 | v = get_reg (s ? r0h : r0l); | |
948 | set_sz (v, 1); | |
949 | put_dest (dc, v); | |
950 | ||
951 | /** 0000 1d sr MOV.B:S src,R0L/R0H */ | |
952 | ||
953 | sc = decode_src2 (sr, 0, d); | |
954 | v = get_src (sc); | |
955 | set_sz (v, 1); | |
956 | put_reg (d ? r0h : r0l, v); | |
957 | ||
958 | /** 0111 010w 1011 dest MOV.size:G dsp:8[SP], dest */ | |
959 | ||
960 | dc = decode_srcdest4 (dest, w); | |
961 | imm = IMM(0); | |
962 | a = get_reg (sp) + sign_ext (imm, 8); | |
963 | a &= addr_mask; | |
964 | if (w) | |
965 | v = mem_get_hi (a); | |
966 | else | |
967 | v = mem_get_qi (a); | |
968 | set_sz (v, w+1); | |
969 | put_dest (dc, v); | |
970 | ||
971 | /** 0111 010w 0011 srcx MOV.size:G src, disp8[SP] */ | |
972 | ||
973 | sc = decode_srcdest4 (srcx, w); | |
974 | imm = IMM(0); | |
975 | a = get_reg (sp) + sign_ext (imm, 8); | |
976 | a &= addr_mask; | |
977 | v = get_src (sc); | |
978 | if (w) | |
979 | mem_put_hi (a, v); | |
980 | else | |
981 | mem_put_qi (a, v); | |
982 | set_sz (v, w+1); | |
983 | ||
984 | /** 1110 1011 0reg 1src MOVA src,dest */ | |
985 | ||
986 | static reg_id map[] = { r0, r1, r2, r3, a0, a1, 0, 0 }; | |
987 | sc = decode_srcdest4 (8 + src, 0); | |
988 | put_reg (map[reg], sc.u.addr); | |
989 | ||
990 | /** 0111 1100 10hl dest MOVdir R0L,dest */ | |
991 | ||
992 | if (dest == 0 || dest == 4 || dest == 5) | |
993 | UNSUPPORTED(); | |
994 | dc = decode_srcdest4 (dest, 0); | |
995 | a = get_src (dc); | |
996 | b = get_reg (r0l); | |
997 | switch (hl) | |
998 | { | |
999 | case 0: a = (a & 0xf0) | (b & 0x0f); break; | |
1000 | case 1: a = (a & 0xf0) | ((b>>4) & 0x0f); break; | |
1001 | case 2: a = (a & 0x0f) | ((b & 0x0f)<<4); break; | |
1002 | case 3: a = (a & 0x0f) | (b & 0xf0); break; | |
1003 | } | |
1004 | put_dest (dc, a); | |
1005 | ||
1006 | /** 0111 1100 00hl srcx MOVdir src,R0L */ | |
1007 | ||
1008 | if (srcx == 0 || srcx == 4 || srcx == 5) | |
1009 | UNSUPPORTED(); | |
1010 | sc = decode_srcdest4 (srcx, 0); | |
1011 | a = get_reg (r0l); | |
1012 | b = get_src (sc); | |
1013 | switch (hl) | |
1014 | { | |
1015 | case 0: a = (a & 0xf0) | (b & 0x0f); break; | |
1016 | case 1: a = (a & 0xf0) | ((b>>4) & 0x0f); break; | |
1017 | case 2: a = (a & 0x0f) | ((b & 0x0f)<<4); break; | |
1018 | case 3: a = (a & 0x0f) | (b & 0xf0); break; | |
1019 | } | |
1020 | put_reg (r0l, a); | |
1021 | ||
1022 | /** 0111 110w 0101 dest MUL.size #IMM,dest */ | |
1023 | ||
1024 | UNARY_SOP; | |
1025 | imm = sign_ext (IMM(w), w?16:8); | |
1026 | tprintf("%d * %d = %d\n", v, imm, v*imm); | |
1027 | v *= imm; | |
1028 | dc = widen_sd (dc); | |
1029 | put_dest (dc, v); | |
1030 | ||
1031 | /** 0111 100w srcx dest MUL.size src,dest */ | |
1032 | ||
1033 | BINARY_SOP; | |
1034 | v = a * b; | |
1035 | tprintf("%d * %d = %d\n", a, b, v); | |
1036 | dc = widen_sd (dc); | |
1037 | put_dest (dc, v); | |
1038 | ||
1039 | /** 0111 110w 0100 dest MULU.size #IMM,dest */ | |
1040 | ||
1041 | UNARY_UOP; | |
1042 | imm = IMM(w); | |
1043 | tprintf("%u * %u = %u\n", v, imm, v*imm); | |
1044 | v *= imm; | |
1045 | dc = widen_sd (dc); | |
1046 | put_dest (dc, v); | |
1047 | ||
1048 | /** 0111 000w srcx dest MULU.size src,dest */ | |
1049 | ||
1050 | BINARY_UOP; | |
1051 | v = a * b; | |
1052 | tprintf("%u * %u = %u\n", a, b, v); | |
1053 | dc = widen_sd (dc); | |
1054 | put_dest (dc, v); | |
1055 | ||
1056 | /** 0111 010w 0101 dest NEG.size dest */ | |
1057 | ||
1058 | UNARY_SOP; | |
1059 | tprintf("%d * -1 = %d\n", v, -v); | |
1060 | v = -v; | |
1061 | set_oszc (v, w+1, v == 0); | |
1062 | put_dest (dc, v); | |
1063 | ||
1064 | /** 0000 0100 NOP */ | |
1065 | ||
1066 | tprintf("nop\n"); | |
1067 | ||
1068 | /** 0111 010w 0111 dest NOT.size:G */ | |
1069 | ||
1070 | UNARY_UOP; | |
1071 | tprintf("~ %x = %x\n", v, ~v); | |
1072 | v = ~v; | |
1073 | set_sz (v, w+1); | |
1074 | put_dest (dc, v); | |
1075 | ||
1076 | /** 1011 1dst NOT.B:S dest */ | |
1077 | ||
1078 | dc = decode_dest3 (dst, 0); | |
1079 | v = get_src (dc); | |
1080 | tprintf("~ %x = %x\n", v, ~v); | |
1081 | v = ~v; | |
1082 | set_sz (v, 1); | |
1083 | put_dest (dc, v); | |
1084 | ||
1085 | /** 0111 011w 0011 dest OR.size:G #IMM,dest */ | |
1086 | ||
1087 | UNARY_UOP; | |
1088 | imm = IMM(w); | |
1089 | tprintf ("%x | %x = %x\n", v, imm, v | imm); | |
1090 | v |= imm; | |
1091 | set_sz (v, w+1); | |
1092 | put_dest (dc, v); | |
1093 | ||
1094 | /** 1001 1dst OR.B:S #IMM8,dest */ | |
1095 | ||
1096 | imm = IMM(0); | |
1097 | dc = decode_dest3 (dst, 0); | |
1098 | v = get_src (dc); | |
1099 | tprintf("%x | %x = %x\n", v, imm, v|imm); | |
1100 | v |= imm; | |
1101 | set_sz (v, 1); | |
1102 | put_dest (dc, v); | |
1103 | ||
1104 | /** 1001 100w srcx dest OR.size:G src,dest */ | |
1105 | ||
1106 | BINARY_UOP; | |
1107 | tprintf ("%x | %x = %x\n", a, b, a | b); | |
1108 | v = a | b; | |
1109 | set_sz (v, w+1); | |
1110 | put_dest (dc, v); | |
1111 | ||
1112 | /** 0001 1d sr OR.B:S src,R0L/R0H */ | |
1113 | ||
1114 | sc = decode_src2 (sr, 0, d); | |
1115 | dc = decode_dest1 (d, 0); | |
1116 | a = get_src (sc); | |
1117 | b = get_src (dc); | |
1118 | v = a | b; | |
1119 | tprintf("%x | %x = %x\n", a, b, v); | |
1120 | set_sz (v, 1); | |
1121 | put_dest (dc, v); | |
1122 | ||
1123 | /** 0111 010w 1101 dest POP.size:G dest */ | |
1124 | ||
1125 | dc = decode_srcdest4 (dest, w); | |
1126 | if (w) | |
1127 | { | |
1128 | v = mem_get_hi (get_reg (sp)); | |
1129 | put_reg (sp, get_reg (sp) + 2); | |
1130 | tprintf("pophi: %x\n", v); | |
1131 | } | |
1132 | else | |
1133 | { | |
1134 | v = mem_get_qi (get_reg (sp)); | |
1135 | put_reg (sp, get_reg (sp) + 1); | |
1136 | tprintf("popqi: %x\n", v); | |
1137 | } | |
1138 | put_dest (dc, v); | |
1139 | ||
1140 | /** 1001 d010 POP.B:S dest */ | |
1141 | ||
1142 | v = mem_get_qi (get_reg (sp)); | |
1143 | put_reg (d ? r0h : r0l, v); | |
1144 | put_reg (sp, get_reg (sp) + 1); | |
1145 | tprintf("popqi: %x\n", v); | |
1146 | ||
1147 | /** 1101 d010 POP.W:S dest */ | |
1148 | ||
1149 | v = mem_get_hi (get_reg (sp)); | |
1150 | put_reg (d ? a1 : a0, v); | |
1151 | put_reg (sp, get_reg (sp) + 2); | |
1152 | tprintf("pophi: %x\n", v); | |
1153 | ||
1154 | /** 1110 1011 0reg 0011 POPC dest */ | |
1155 | ||
1156 | dc = decode_cr (reg); | |
1157 | v = mem_get_hi (get_reg (sp)); | |
1158 | put_dest (dc, v); | |
1159 | put_reg (sp, get_reg (sp) + 2); | |
1160 | tprintf("popc: %x\n", v); | |
1161 | ||
1162 | /** 1110 1101 POPM dest */ | |
1163 | ||
1164 | static int map[] = { r0, r1, r2, r3, a0, a1, sb, fb }; | |
1165 | imm = IMM(0); | |
1166 | tprintf("popm: %x\n", imm); | |
1167 | for (a=0; a<8; a++) | |
1168 | if (imm & (1<<a)) | |
1169 | { | |
1170 | v = mem_get_hi (get_reg (sp)); | |
1171 | put_reg (map[a], v); | |
1172 | put_reg (sp, get_reg (sp) + 2); | |
1173 | } | |
1174 | ||
1175 | /** 0111 110w 1110 0010 PUSH.size:G #IMM */ | |
1176 | ||
1177 | imm = IMM(w); | |
1178 | if (w) | |
1179 | { | |
1180 | put_reg (sp, get_reg (sp) - 2); | |
1181 | mem_put_hi (get_reg (sp), imm); | |
1182 | tprintf("pushhi %04x\n", imm); | |
1183 | } | |
1184 | else | |
1185 | { | |
1186 | put_reg (sp, get_reg (sp) - 1); | |
1187 | mem_put_qi (get_reg (sp), imm); | |
1188 | tprintf("pushqi %02x\n", imm); | |
1189 | } | |
1190 | ||
1191 | /** 0111 010w 0100 srcx PUSH.size:G src */ | |
1192 | ||
1193 | sc = decode_srcdest4 (srcx, w); | |
1194 | v = get_src (sc); | |
1195 | if (w) | |
1196 | { | |
1197 | put_reg (sp, get_reg (sp) - 2); | |
1198 | mem_put_hi (get_reg (sp), v); | |
1199 | tprintf("pushhi: %x\n", v); | |
1200 | } | |
1201 | else | |
1202 | { | |
1203 | put_reg (sp, get_reg (sp) - 1); | |
1204 | mem_put_qi (get_reg (sp), v); | |
1205 | tprintf("pushqi: %x\n", v); | |
1206 | } | |
1207 | ||
1208 | /** 1000 s010 PUSH.B:S src */ | |
1209 | ||
1210 | v = get_reg (s ? r0h : r0l); | |
1211 | put_reg (sp, get_reg (sp) - 1); | |
1212 | mem_put_qi (get_reg (sp), v); | |
1213 | tprintf("pushqi: %x\n", v); | |
1214 | ||
1215 | /** 1100 s010 PUSH.W:S src */ | |
1216 | ||
1217 | v = get_reg (s ? a1 : a0); | |
1218 | put_reg (sp, get_reg (sp) - 2); | |
1219 | mem_put_hi (get_reg (sp), v); | |
1220 | tprintf("pushhi: %x\n", v); | |
1221 | ||
1222 | /** 0111 1101 1001 srcx PUSHA src */ | |
1223 | ||
1224 | sc = decode_srcdest4 (srcx, 0); | |
1225 | put_reg (sp, get_reg (sp) - 2); | |
1226 | mem_put_hi (get_reg (sp), sc.u.addr); | |
1227 | tprintf("pushhi: %x\n", sc.u.addr); | |
1228 | ||
1229 | /** 1110 1011 0src 0010 PUSHC src */ | |
1230 | ||
1231 | sc = decode_cr (src); | |
1232 | put_reg (sp, get_reg (sp) - 2); | |
1233 | v = get_src (sc); | |
1234 | mem_put_hi (get_reg (sp), v); | |
1235 | tprintf("pushc: %x\n", v); | |
1236 | ||
1237 | /** 1110 1100 PUSHM src */ | |
1238 | ||
1239 | static int map[] = { fb, sb, a1, a0, r3, r2, r1, r0 }; | |
1240 | imm = IMM(0); | |
1241 | tprintf("pushm: %x\n", imm); | |
1242 | for (a=0; a<8; a++) | |
1243 | if (imm & (1<<a)) | |
1244 | { | |
1245 | put_reg (sp, get_reg (sp) - 2); | |
1246 | v = get_reg (map[a]); | |
1247 | mem_put_hi (get_reg (sp), v); | |
1248 | } | |
1249 | ||
1250 | /** 1111 1011 REIT */ | |
1251 | ||
1252 | a = get_reg (sp); | |
1253 | v = (mem_get_hi (a) | |
1254 | + 65536 * (mem_get_qi (a+3) & 0x0f)); | |
1255 | b = (mem_get_qi (a+2) | |
1256 | + 16 * (mem_get_qi (a+3) & 0xf0)); | |
1257 | put_reg (pc, v); | |
1258 | put_reg (flags, b); | |
1259 | put_reg (sp, get_reg (sp) + 4); | |
1260 | ||
1261 | /** 0111 110w 1111 0001 RMPA.size */ | |
1262 | ||
1263 | int count = get_reg (r3); | |
1264 | int list1 = get_reg (a0); | |
1265 | int list2 = get_reg (a1); | |
1266 | int sum = get_reg (w ? r2r0 : r0); | |
1267 | ||
1268 | while (count) | |
1269 | { | |
1270 | if (w) | |
1271 | { | |
1272 | a = sign_ext (mem_get_hi (list1), 16); | |
1273 | b = sign_ext (mem_get_hi (list2), 16); | |
1274 | } | |
1275 | else | |
1276 | { | |
1277 | a = sign_ext (mem_get_qi (list1), 8); | |
1278 | b = sign_ext (mem_get_qi (list2), 8); | |
1279 | } | |
1280 | tprintf("%d + %d * %d = ", sum, a, b); | |
1281 | sum += a * b; | |
1282 | tprintf("%d\n", sum); | |
1283 | list1 += w ? 2 : 1; | |
1284 | list2 += w ? 2 : 1; | |
1285 | count --; | |
1286 | } | |
1287 | put_reg (r3, count); | |
1288 | put_reg (a0, list1); | |
1289 | put_reg (a1, list2); | |
1290 | put_reg (w ? r2r0 : r0, sum); | |
1291 | ||
1292 | /** 0111 011w 1010 dest ROLC.size dest */ | |
1293 | ||
1294 | dc = decode_srcdest4 (dest, w); | |
1295 | rot_op (dc, 1, 1); | |
1296 | ||
1297 | /** 0111 011w 1011 dest RORC.size dest */ | |
1298 | ||
1299 | dc = decode_srcdest4 (dest, w); | |
1300 | rot_op (dc, 1, -1); | |
1301 | ||
1302 | /** 1110 000w immm dest ROT.size #IMM,dest */ | |
1303 | ||
1304 | dc = decode_srcdest4 (dest, w); | |
1305 | rot_op (dc, 0, IMM4()); | |
1306 | ||
1307 | /** 0111 010w 0110 dest ROT.size R1H,dest */ | |
1308 | ||
1309 | dc = decode_srcdest4 (dest, w); | |
1310 | rot_op (dc, 0, sign_ext (get_reg (r1h), 8)); | |
1311 | ||
1312 | /** 1111 0011 RTS */ | |
1313 | ||
1314 | put_reg (pc, mem_get_psi (get_reg (sp))); | |
1315 | put_reg (sp, get_reg (sp) + 3); | |
1316 | ||
1317 | /** 0111 011w 0111 dest SBB.size #IMM,dest */ | |
1318 | ||
1319 | dc = decode_srcdest4 (dest, w); | |
1320 | imm = IMM(w); | |
1321 | MATH_OP (dc, imm, !carry, -, >= 0); | |
1322 | ||
1323 | /** 1011 100w srcx dest SBB.size src,dest */ | |
1324 | ||
1325 | sc = decode_srcdest4(srcx, w); | |
1326 | dc = decode_srcdest4(dest, w); | |
1327 | b = get_src (sc); | |
1328 | MATH_OP (dc, b, !carry, -, >= 0); | |
1329 | ||
1330 | /** 1111 000w immm dest SHA.size #IMM, dest */ | |
1331 | ||
1332 | dc = decode_srcdest4(dest, w); | |
1333 | shift_op (dc, 1, IMM4()); | |
1334 | ||
1335 | /** 0111 010w 1111 dest SHA.size R1H,dest */ | |
1336 | ||
1337 | dc = decode_srcdest4(dest, w); | |
1338 | a = sign_ext (get_reg (r1h), 8); | |
1339 | shift_op (dc, 1, a); | |
1340 | ||
1341 | /** 1110 1011 101d immm SHA.L #IMM, dest */ | |
1342 | ||
1343 | dc = reg_sd (d ? r3r1 : r2r0); | |
1344 | shift_op (dc, 1, IMM4()); | |
1345 | ||
1346 | /** 1110 1011 001d 0001 SHA.L R1H,dest */ | |
1347 | ||
1348 | dc = reg_sd (d ? r3r1 : r2r0); | |
1349 | a = sign_ext (get_reg (r1h), 8); | |
1350 | shift_op (dc, 1, a); | |
1351 | ||
1352 | /** 1110 100w immm dest SHL.size #IMM, dest */ | |
1353 | ||
1354 | dc = decode_srcdest4(dest, w); | |
1355 | shift_op (dc, 0, IMM4()); | |
1356 | ||
1357 | /** 0111 010w 1110 dest SHL.size R1H,dest */ | |
1358 | ||
1359 | dc = decode_srcdest4(dest, w); | |
1360 | a = sign_ext (get_reg (r1h), 8); | |
1361 | shift_op (dc, 0, a); | |
1362 | ||
1363 | /** 1110 1011 100d immm SHL.L #IMM,dest */ | |
1364 | ||
1365 | dc = reg_sd (d ? r3r1 : r2r0); | |
1366 | shift_op (dc, 0, IMM4()); | |
1367 | ||
1368 | /** 1110 1011 000d 0001 SHL.L R1H,dest */ | |
1369 | ||
1370 | dc = reg_sd (d ? r3r1 : r2r0); | |
1371 | a = sign_ext (get_reg (r1h), 8); | |
1372 | shift_op (dc, 0, a); | |
1373 | ||
1374 | /** 0111 110w 1110 100b SMOVB.size */ | |
1375 | ||
1376 | int count = get_reg (r3); | |
1377 | int s1 = get_reg (a0) + (get_reg (r1h) << 16); | |
1378 | int s2 = get_reg (a1); | |
1379 | int inc = (w ? 2 : 1) * (b ? -1 : 1); | |
1380 | ||
1381 | while (count) | |
1382 | { | |
1383 | if (w) | |
1384 | { | |
1385 | v = mem_get_hi (s1); | |
1386 | mem_put_hi (s2, v); | |
1387 | } | |
1388 | else | |
1389 | { | |
1390 | v = mem_get_qi (s1); | |
1391 | mem_put_qi (s2, v); | |
1392 | } | |
1393 | s1 += inc; | |
1394 | s2 += inc; | |
1395 | count --; | |
1396 | } | |
1397 | put_reg (r3, count); | |
1398 | put_reg (a0, s1 & 0xffff); | |
1399 | put_reg (a1, s2); | |
1400 | put_reg (r1h, s1 >> 16); | |
1401 | ||
1402 | /** 0111 110w 1110 1010 SSTR.size */ | |
1403 | ||
1404 | int count = get_reg (r3); | |
1405 | int s1 = get_reg (a1); | |
1406 | v = get_reg (w ? r0 : r0h); | |
1407 | ||
1408 | while (count) | |
1409 | { | |
1410 | if (w) | |
1411 | { | |
1412 | mem_put_hi (s1, v); | |
1413 | s1 += 2; | |
1414 | } | |
1415 | else | |
1416 | { | |
1417 | mem_put_qi (s1, v); | |
1418 | s1 += 1; | |
1419 | } | |
1420 | count --; | |
1421 | } | |
1422 | put_reg (r3, count); | |
1423 | put_reg (a1, s1); | |
1424 | ||
1425 | /** 0111 1011 1src dest STC src,dest */ | |
1426 | ||
1427 | dc = decode_srcdest4 (dest, 1); | |
1428 | sc = decode_cr (src); | |
1429 | put_dest (dc, get_src(sc)); | |
1430 | ||
1431 | /** 0111 1100 1100 dest STC PC,dest */ | |
1432 | ||
1433 | dc = decode_srcdest4 (dest, 1); | |
1434 | dc.bytes = 3; | |
1435 | put_dest (dc, orig_pc); | |
1436 | ||
1437 | /** 0111 1101 1111 0000 STCTX abs16,abs20 */ | |
1438 | ||
1439 | NOTYET(); | |
1440 | ||
1441 | /** 0111 010w 0000 srcx STE.size src,abs20 */ | |
1442 | ||
1443 | sc = decode_srcdest4 (srcx, w); | |
1444 | a = IMM(2); | |
1445 | v = get_src (sc); | |
1446 | if (w) | |
1447 | mem_put_hi (a, v); | |
1448 | else | |
1449 | mem_put_qi (a, v); | |
1450 | if (srcx == 4 || srcx == 5) | |
1451 | { | |
1452 | v = get_reg (sc.u.reg); | |
1453 | set_sz (v, 2); | |
1454 | } | |
1455 | else | |
1456 | set_sz (v, w+1); | |
1457 | ||
1458 | /** 0111 010w 0001 srcx STE.size src,disp20[a0] */ | |
1459 | ||
1460 | sc = decode_srcdest4 (srcx, w); | |
1461 | a = get_reg(a0) + IMM(2); | |
1462 | v = get_src (sc); | |
1463 | if (w) | |
1464 | mem_put_hi (a, v); | |
1465 | else | |
1466 | mem_put_qi (a, v); | |
1467 | if (srcx == 4 || srcx == 5) | |
1468 | { | |
1469 | v = get_reg (sc.u.reg); | |
1470 | set_sz (v, 2); | |
1471 | } | |
1472 | else | |
1473 | set_sz (v, w+1); | |
1474 | ||
1475 | /** 0111 010w 0010 srcx STE.size src,[a1a0] */ | |
1476 | ||
1477 | sc = decode_srcdest4 (srcx, w); | |
1478 | a = get_reg(a1a0); | |
1479 | v = get_src (sc); | |
1480 | if (w) | |
1481 | mem_put_hi (a, v); | |
1482 | else | |
1483 | mem_put_qi (a, v); | |
1484 | if (srcx == 4 || srcx == 5) | |
1485 | { | |
1486 | v = get_reg (sc.u.reg); | |
1487 | set_sz (v, 2); | |
1488 | } | |
1489 | else | |
1490 | set_sz (v, w+1); | |
1491 | ||
1492 | /** 1101 0dst STNZ #IMM8,dest */ | |
1493 | ||
1494 | imm = IMM(0); | |
1495 | dc = decode_dest3(dst, 0); | |
1496 | if (!FLAG_Z) | |
1497 | put_dest (dc, imm); | |
1498 | ||
1499 | /** 1100 1dst STZ #IMM8,dest */ | |
1500 | ||
1501 | imm = IMM(0); | |
1502 | dc = decode_dest3(dst, 0); | |
1503 | if (FLAG_Z) | |
1504 | put_dest (dc, imm); | |
1505 | ||
1506 | /** 1101 1dst STZX #IMM81,#IMM82,dest */ | |
1507 | ||
1508 | a = IMM(0); | |
1509 | dc = decode_dest3(dst, 0); | |
1510 | b = IMM(0); | |
1511 | if (FLAG_Z) | |
1512 | put_dest (dc, a); | |
1513 | else | |
1514 | put_dest (dc, b); | |
1515 | ||
1516 | /** 0111 011w 0101 dest SUB.size:G #IMM,dest */ | |
1517 | ||
1518 | dc = decode_srcdest4 (dest, w); | |
1519 | imm = IMM(w); | |
1520 | MATH_OP (dc, imm, 0, -, >= 0); | |
1521 | ||
1522 | /** 1000 1dst SUB.B:S #IMM8,dest */ | |
1523 | ||
1524 | imm = IMM(0); | |
1525 | dc = decode_dest3 (dst, 0); | |
1526 | MATH_OP (dc, imm, 0, -, >= 0); | |
1527 | ||
1528 | /** 1010 100w srcx dest SUB.size:G src,dest */ | |
1529 | ||
1530 | sc = decode_srcdest4(srcx, w); | |
1531 | dc = decode_srcdest4(dest, w); | |
1532 | b = get_src (sc); | |
f4f21c20 | 1533 | MATH_OP (dc, b, 0, -, >= 0); |
d45a4bef JB |
1534 | |
1535 | /** 0010 1d sr SUB.B:S src,R0L/R0H */ | |
1536 | ||
1537 | sc = decode_src2 (sr, 0, d); | |
1538 | dc = decode_dest1 (d, 0); | |
1539 | b = get_src (sc); | |
f4f21c20 | 1540 | MATH_OP (dc, b, 0, -, >= 0); |
d45a4bef JB |
1541 | |
1542 | /** 0111 011w 0000 dest TST.size #IMM, dest */ | |
1543 | ||
1544 | UNARY_UOP; | |
1545 | imm = IMM(w); | |
1546 | tprintf ("%x & %x = %x\n", v, imm, v & imm); | |
1547 | v &= imm; | |
1548 | set_sz (v, w+1); | |
1549 | ||
1550 | /** 1000 000w srcx dest TST.size src,dest */ | |
1551 | ||
1552 | BINARY_UOP; | |
1553 | tprintf ("%x & %x = %x\n", a, b, a & b); | |
1554 | v = a & b; | |
1555 | set_sz (v, w+1); | |
1556 | ||
1557 | /** 1111 1111 UND */ | |
1558 | ||
1559 | trigger_fixed_interrupt (0xffdc); | |
1560 | ||
1561 | /** 0111 1101 1111 0011 WAIT */ | |
1562 | ||
1563 | tprintf("waiting...\n"); | |
1564 | ||
1565 | /** 0111 101w 00sr dest XCHG.size src,dest */ | |
1566 | ||
1567 | sc = decode_srcdest4 (sr, w); | |
1568 | dc = decode_srcdest4 (dest, w); | |
1569 | a = get_src (sc); | |
1570 | b = get_src (dc); | |
1571 | put_dest (dc, a); | |
1572 | put_dest (sc, b); | |
1573 | ||
1574 | /** 0111 011w 0001 dest XOR.size #IMM,dest */ | |
1575 | ||
1576 | UNARY_UOP; | |
1577 | imm = IMM(w); | |
1578 | tprintf ("%x ^ %x = %x\n", v, imm, v ^ imm); | |
1579 | v ^= imm; | |
1580 | set_sz (v, w+1); | |
1581 | put_dest (dc, v); | |
1582 | ||
1583 | /** 1000 100w srcx dest XOR.size src,dest */ | |
1584 | ||
1585 | BINARY_UOP; | |
1586 | tprintf ("%x ^ %x = %x\n", a, b, a ^ b); | |
1587 | v = a ^ b; | |
1588 | set_sz (v, w+1); | |
1589 | put_dest (dc, v); | |
1590 | ||
1591 | /** OP */ | |
1592 | /** */ | |
1593 | ||
1594 | return step_result; | |
1595 | } |