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1.1.1.3 root 1: /*
1.1 root 2: * UAE - The Un*x Amiga Emulator
3: *
4: * MC68000 emulation generator
5: *
1.1.1.3 root 6: * This is a fairly stupid program that generates a lot of case labels that
1.1 root 7: * can be #included in a switch statement.
8: * As an alternative, it can generate functions that handle specific
9: * MC68000 instructions, plus a prototype header file and a function pointer
10: * array to look up the function for an opcode.
11: * Error checking is bad, an illegal table68k file will cause the program to
12: * call abort().
1.1.1.3 root 13: * The generated code is sometimes sub-optimal, an optimizing compiler should
1.1 root 14: * take care of this.
1.1.1.3 root 15: *
1.1 root 16: * Copyright 1995, 1996 Bernd Schmidt
17: */
18:
19: #include "sysconfig.h"
20: #include "sysdeps.h"
21: #include <ctype.h>
22:
23: #include "config.h"
24: #include "options.h"
25: #include "readcpu.h"
26:
27: #define BOOL_TYPE "int"
28:
1.1.1.3 root 29: static FILE *headerfile;
30: static FILE *stblfile;
31:
32: static int using_prefetch;
33: static int using_exception_3;
34: static int cpu_level;
35:
36: /* For the current opcode, the next lower level that will have different code.
37: * Initialized to -1 for each opcode. If it remains unchanged, indicates we
38: * are done with that opcode. */
39: static int next_cpu_level;
1.1 root 40:
1.1.1.5 ! root 41: void write_log (const char *s, ...)
1.1 root 42: {
1.1.1.3 root 43: fprintf (stderr, "%s", s);
1.1 root 44: }
45:
1.1.1.3 root 46: static int *opcode_map;
47: static int *opcode_next_clev;
48: static int *opcode_last_postfix;
49: static unsigned long *counts;
50:
1.1.1.5 ! root 51: struct amode_queue
! 52: {
! 53: struct amode_queue *next;
! 54: char *buf;
! 55: unsigned int done:1;
! 56: };
! 57:
! 58: static struct amode_queue *aq_head;
! 59:
! 60: static void read_counts (void)
1.1 root 61: {
62: FILE *file;
1.1.1.5 ! root 63: unsigned long opcode, count, total;
1.1 root 64: char name[20];
1.1.1.5 ! root 65: int nr = 0;
1.1.1.3 root 66: memset (counts, 0, 65536 * sizeof *counts);
1.1 root 67:
1.1.1.3 root 68: file = fopen ("frequent.68k", "r");
69: if (file) {
70: fscanf (file, "Total: %lu\n", &total);
1.1.1.5 ! root 71: while (fscanf (file, "%lx: %lu %s\n", &opcode, &count, name) == 3) {
1.1.1.3 root 72: opcode_next_clev[nr] = 3;
73: opcode_last_postfix[nr] = -1;
74: opcode_map[nr++] = opcode;
75: counts[opcode] = count;
76: }
77: fclose (file);
78: }
79: if (nr == nr_cpuop_funcs)
80: return;
81: for (opcode = 0; opcode < 0x10000; opcode++) {
82: if (table68k[opcode].handler == -1 && table68k[opcode].mnemo != i_ILLG
83: && counts[opcode] == 0)
1.1 root 84: {
1.1.1.3 root 85: opcode_next_clev[nr] = 3;
86: opcode_last_postfix[nr] = -1;
87: opcode_map[nr++] = opcode;
88: counts[opcode] = count;
1.1 root 89: }
90: }
1.1.1.3 root 91: if (nr != nr_cpuop_funcs)
92: abort ();
1.1 root 93: }
94:
1.1.1.3 root 95: static char endlabelstr[80];
96: static int endlabelno = 0;
1.1.1.5 ! root 97: static int need_endlabel;
1.1 root 98:
99: static int n_braces = 0;
1.1.1.3 root 100: static int m68k_pc_offset = 0;
1.1.1.5 ! root 101: static int insn_n_cycles;
1.1 root 102:
1.1.1.5 ! root 103: static void start_brace (void)
1.1 root 104: {
105: n_braces++;
1.1.1.3 root 106: printf ("{");
1.1 root 107: }
108:
1.1.1.5 ! root 109: static void close_brace (void)
1.1 root 110: {
111: assert (n_braces > 0);
112: n_braces--;
1.1.1.3 root 113: printf ("}");
1.1 root 114: }
115:
1.1.1.5 ! root 116: static void finish_braces (void)
1.1 root 117: {
118: while (n_braces > 0)
1.1.1.5 ! root 119: close_brace ();
1.1 root 120: }
121:
1.1.1.5 ! root 122: static void pop_braces (int to)
1.1 root 123: {
124: while (n_braces > to)
1.1.1.5 ! root 125: close_brace ();
1.1 root 126: }
127:
1.1.1.5 ! root 128: static int bit_size (int size)
1.1 root 129: {
1.1.1.5 ! root 130: switch (size) {
! 131: case sz_byte: return 8;
! 132: case sz_word: return 16;
! 133: case sz_long: return 32;
! 134: default: abort ();
1.1 root 135: }
136: return 0;
137: }
138:
1.1.1.5 ! root 139: static const char *bit_mask (int size)
1.1 root 140: {
1.1.1.5 ! root 141: switch (size) {
1.1.1.3 root 142: case sz_byte: return "0xff";
143: case sz_word: return "0xffff";
144: case sz_long: return "0xffffffff";
1.1.1.5 ! root 145: default: abort ();
1.1 root 146: }
147: return 0;
148: }
149:
1.1.1.3 root 150: static const char *gen_nextilong (void)
151: {
152: static char buffer[80];
153: int r = m68k_pc_offset;
154: m68k_pc_offset += 4;
1.1.1.5 ! root 155:
! 156: insn_n_cycles += 4;
! 157:
! 158: if (using_prefetch)
! 159: sprintf (buffer, "get_ilong_prefetch(%d)", r);
! 160: else
! 161: sprintf (buffer, "get_ilong(%d)", r);
1.1.1.3 root 162: return buffer;
163: }
164:
165: static const char *gen_nextiword (void)
166: {
167: static char buffer[80];
168: int r = m68k_pc_offset;
169: m68k_pc_offset += 2;
1.1.1.5 ! root 170:
! 171: insn_n_cycles += 2;
! 172:
! 173: if (using_prefetch)
! 174: sprintf (buffer, "get_iword_prefetch(%d)", r);
! 175: else
! 176: sprintf (buffer, "get_iword(%d)", r);
1.1.1.3 root 177: return buffer;
178: }
179:
180: static const char *gen_nextibyte (void)
181: {
182: static char buffer[80];
183: int r = m68k_pc_offset;
184: m68k_pc_offset += 2;
1.1.1.5 ! root 185:
! 186: insn_n_cycles += 2;
! 187:
! 188: if (using_prefetch)
! 189: sprintf (buffer, "get_ibyte_prefetch(%d)", r);
! 190: else
! 191: sprintf (buffer, "get_ibyte(%d)", r);
1.1.1.3 root 192: return buffer;
193: }
194:
195: static void fill_prefetch_0 (void)
196: {
197: if (using_prefetch)
198: printf ("fill_prefetch_0 ();\n");
199: }
200:
201: static void fill_prefetch_2 (void)
202: {
203: if (using_prefetch)
204: printf ("fill_prefetch_2 ();\n");
205: }
206:
1.1.1.5 ! root 207: /* To allow the compiler to generate better code, we try to pre-schedule
! 208: * the C code we generate to put addressing mode generation code that is
! 209: * likely to require many registers earlier than code that is likely to
! 210: * use fewer registers. */
! 211:
! 212: #define DO_QUEUEING 1
! 213:
! 214:
! 215: #if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 6
! 216: static void queue_amode (const char *, ...) __attribute__ ((format (printf, 1, 2)));
! 217: #endif
! 218:
! 219: static void queue_amode (const char *fmt, ...)
! 220: {
! 221: char buf[160];
! 222: struct amode_queue *prev, **aqp;
! 223: va_list ap;
! 224: va_start (ap, fmt);
! 225:
! 226: #if DO_QUEUEING
! 227: #ifdef HAVE_VSPRINTF
! 228: vsprintf (buf, fmt, ap);
! 229: #else
! 230: {
! 231: int x1, x2, x3, x4, x5, x6, x7, x8;
! 232: x1 = va_arg (ap, int);
! 233: x2 = va_arg (ap, int);
! 234: x3 = va_arg (ap, int);
! 235: x4 = va_arg (ap, int);
! 236: x5 = va_arg (ap, int);
! 237: x6 = va_arg (ap, int);
! 238: x7 = va_arg (ap, int);
! 239: x8 = va_arg (ap, int);
! 240: sprintf (buf, fmt, x1, x2, x3, x4, x5, x6, x7, x8);
! 241: }
! 242: #endif
! 243: aqp = &aq_head;
! 244: prev = 0;
! 245: while (*aqp != 0)
! 246: prev = *aqp, aqp = &(*aqp)->next;
! 247: if (prev != 0 && ! prev->done) {
! 248: char *tmpbuf = prev->buf;
! 249: prev->buf = (char *) xmalloc (strlen (tmpbuf) + strlen (buf) + 1);
! 250: strcpy (prev->buf, tmpbuf);
! 251: strcat (prev->buf, buf);
! 252: } else {
! 253: struct amode_queue *tmp = (struct amode_queue *) xmalloc (sizeof *tmp);
! 254: tmp->next = 0;
! 255: tmp->buf = my_strdup (buf);
! 256: *aqp = tmp;
! 257: }
! 258: #else
! 259: start_brace ();
! 260: vprintf (fmt, ap);
! 261: #endif
! 262: }
! 263:
! 264: static void done_queue (void)
! 265: {
! 266: struct amode_queue *prev, **aqp;
! 267: aqp = &aq_head;
! 268: prev = 0;
! 269: while (*aqp != 0)
! 270: prev = *aqp, aqp = &(*aqp)->next;
! 271: if (prev)
! 272: prev->done = 1;
! 273: }
! 274:
! 275: static void flush_amodes (void)
! 276: {
! 277: while (aq_head != 0) {
! 278: struct amode_queue *q = aq_head;
! 279: aq_head = q->next;
! 280: start_brace ();
! 281: printf (q->buf);
! 282: free (q->buf);
! 283: free (q);
! 284: }
! 285: }
! 286:
1.1.1.3 root 287: static void sync_m68k_pc (void)
288: {
1.1.1.5 ! root 289: flush_amodes ();
1.1.1.3 root 290: if (m68k_pc_offset == 0)
291: return;
292: printf ("m68k_incpc(%d);\n", m68k_pc_offset);
293: switch (m68k_pc_offset) {
294: case 0:
1.1.1.5 ! root 295: /*fprintf (stderr, "refilling prefetch at 0\n"); */
1.1.1.3 root 296: break;
297: case 2:
1.1.1.5 ! root 298: fill_prefetch_2 ();
1.1.1.3 root 299: break;
300: default:
1.1.1.5 ! root 301: fill_prefetch_0 ();
1.1.1.3 root 302: break;
303: }
304: m68k_pc_offset = 0;
305: }
306:
307: /* getv == 1: fetch data; getv != 0: check for odd address. If movem != 0,
1.1.1.5 ! root 308: * the calling routine handles Apdi and Aipi modes. */
1.1.1.3 root 309: static void genamode (amodes mode, char *reg, wordsizes size, char *name, int getv, int movem)
1.1 root 310: {
1.1.1.5 ! root 311: int queued = 0;
! 312:
! 313: switch (mode) {
1.1 root 314: case Dreg:
315: if (movem)
1.1.1.5 ! root 316: abort ();
! 317: start_brace ();
1.1.1.3 root 318: if (getv == 1)
1.1.1.5 ! root 319: switch (size) {
1.1 root 320: case sz_byte:
1.1.1.2 root 321: #ifdef AMIGA
322: /* sam: I don't know why gcc.2.7.2.1 produces a code worse */
323: /* if it is not done like that: */
1.1.1.3 root 324: printf ("\tuae_s8 %s = ((uae_u8*)&m68k_dreg(regs, %s))[3];\n", name, reg);
1.1.1.2 root 325: #else
1.1.1.3 root 326: printf ("\tuae_s8 %s = m68k_dreg(regs, %s);\n", name, reg);
1.1.1.2 root 327: #endif
1.1 root 328: break;
329: case sz_word:
1.1.1.2 root 330: #ifdef AMIGA
1.1.1.3 root 331: printf ("\tuae_s16 %s = ((uae_s16*)&m68k_dreg(regs, %s))[1];\n", name, reg);
1.1.1.2 root 332: #else
1.1.1.3 root 333: printf ("\tuae_s16 %s = m68k_dreg(regs, %s);\n", name, reg);
1.1.1.2 root 334: #endif
1.1 root 335: break;
336: case sz_long:
1.1.1.3 root 337: printf ("\tuae_s32 %s = m68k_dreg(regs, %s);\n", name, reg);
1.1 root 338: break;
1.1.1.5 ! root 339: default:
! 340: abort ();
1.1 root 341: }
1.1.1.3 root 342: return;
1.1 root 343: case Areg:
344: if (movem)
1.1.1.5 ! root 345: abort ();
! 346: start_brace ();
1.1.1.3 root 347: if (getv == 1)
1.1.1.5 ! root 348: switch (size) {
1.1 root 349: case sz_word:
1.1.1.3 root 350: printf ("\tuae_s16 %s = m68k_areg(regs, %s);\n", name, reg);
1.1 root 351: break;
352: case sz_long:
1.1.1.3 root 353: printf ("\tuae_s32 %s = m68k_areg(regs, %s);\n", name, reg);
1.1 root 354: break;
1.1.1.5 ! root 355: default:
! 356: abort ();
1.1 root 357: }
1.1.1.3 root 358: return;
1.1 root 359: case Aind:
1.1.1.5 ! root 360: start_brace ();
1.1.1.3 root 361: printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg);
1.1 root 362: break;
363: case Aipi:
1.1.1.5 ! root 364: start_brace ();
1.1.1.3 root 365: printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg);
1.1 root 366: break;
367: case Apdi:
1.1.1.5 ! root 368: start_brace ();
! 369: switch (size) {
1.1 root 370: case sz_byte:
1.1.1.3 root 371: if (movem)
372: printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg);
373: else
374: printf ("\tuaecptr %sa = m68k_areg(regs, %s) - areg_byteinc[%s];\n", name, reg, reg);
1.1 root 375: break;
376: case sz_word:
1.1.1.3 root 377: printf ("\tuaecptr %sa = m68k_areg(regs, %s) - %d;\n", name, reg, movem ? 0 : 2);
1.1 root 378: break;
379: case sz_long:
1.1.1.3 root 380: printf ("\tuaecptr %sa = m68k_areg(regs, %s) - %d;\n", name, reg, movem ? 0 : 4);
1.1 root 381: break;
1.1.1.5 ! root 382: default:
! 383: abort ();
1.1 root 384: }
385: break;
386: case Ad16:
1.1.1.5 ! root 387: start_brace ();
! 388: printf ("\tuaecptr %sa = m68k_areg(regs, %s) + (uae_s32)(uae_s16)%s;\n", name, reg, gen_nextiword ());
1.1 root 389: break;
390: case Ad8r:
1.1.1.3 root 391: if (cpu_level > 1) {
392: if (next_cpu_level < 1)
393: next_cpu_level = 1;
1.1.1.5 ! root 394: sync_m68k_pc ();
! 395: start_brace ();
1.1.1.3 root 396: printf ("\tuaecptr %sa = get_disp_ea_020(m68k_areg(regs, %s), next_iword());\n", name, reg);
1.1.1.5 ! root 397: } else {
! 398: start_brace ();
! 399: printf ("\tuaecptr %sa = get_disp_ea_000(m68k_areg(regs, %s), %s);\n", name, reg, gen_nextiword ());
! 400: }
1.1 root 401: break;
402: case PC16:
1.1.1.5 ! root 403: queue_amode ("\tuaecptr %sa = m68k_getpc () + %d;\n", name, m68k_pc_offset);
! 404: queue_amode ("\t%sa += (uae_s32)(uae_s16)%s;\n", name, gen_nextiword ());
! 405: queued = 1;
1.1 root 406: break;
407: case PC8r:
1.1.1.3 root 408: if (cpu_level > 1) {
409: if (next_cpu_level < 1)
410: next_cpu_level = 1;
1.1.1.5 ! root 411: flush_amodes ();
! 412: sync_m68k_pc ();
! 413: start_brace ();
1.1.1.3 root 414: printf ("\tuaecptr tmppc = m68k_getpc();\n");
415: printf ("\tuaecptr %sa = get_disp_ea_020(tmppc, next_iword());\n", name);
416: } else {
1.1.1.5 ! root 417: queue_amode ("\tuaecptr tmppc = m68k_getpc() + %d;\n", m68k_pc_offset);
! 418: queue_amode ("\tuaecptr %sa = get_disp_ea_000(tmppc, %s);\n", name, gen_nextiword ());
! 419: queued = 1;
1.1 root 420: }
1.1.1.3 root 421:
1.1 root 422: break;
423: case absw:
1.1.1.5 ! root 424: queue_amode ("\tuaecptr %sa = (uae_s32)(uae_s16)%s;\n", name, gen_nextiword ());
! 425: queued = 1;
1.1 root 426: break;
427: case absl:
1.1.1.5 ! root 428: queue_amode ("\tuaecptr %sa = %s;\n", name, gen_nextilong ());
! 429: queued = 1;
1.1 root 430: break;
431: case imm:
1.1.1.3 root 432: if (getv != 1)
433: abort ();
1.1.1.5 ! root 434: switch (size) {
1.1.1.3 root 435: case sz_byte:
1.1.1.5 ! root 436: queue_amode ("\tuae_s8 %s = %s;\n", name, gen_nextibyte ());
1.1.1.3 root 437: break;
438: case sz_word:
1.1.1.5 ! root 439: queue_amode ("\tuae_s16 %s = %s;\n", name, gen_nextiword ());
1.1.1.3 root 440: break;
441: case sz_long:
1.1.1.5 ! root 442: queue_amode ("\tuae_s32 %s = %s;\n", name, gen_nextilong ());
1.1.1.3 root 443: break;
1.1.1.5 ! root 444: default:
! 445: abort ();
1.1.1.3 root 446: }
447: return;
448: case imm0:
1.1.1.5 ! root 449: if (getv != 1)
! 450: abort ();
! 451: queue_amode ("\tuae_s8 %s = %s;\n", name, gen_nextibyte ());
1.1.1.3 root 452: return;
453: case imm1:
1.1.1.5 ! root 454: if (getv != 1)
! 455: abort ();
! 456: queue_amode ("\tuae_s16 %s = %s;\n", name, gen_nextiword ());
1.1.1.3 root 457: return;
458: case imm2:
1.1.1.5 ! root 459: if (getv != 1)
! 460: abort ();
! 461: queue_amode ("\tuae_s32 %s = %s;\n", name, gen_nextilong ());
1.1.1.3 root 462: return;
463: case immi:
1.1.1.5 ! root 464: if (getv != 1)
! 465: abort ();
1.1.1.3 root 466: printf ("\tuae_u32 %s = %s;\n", name, reg);
467: return;
468: default:
1.1.1.5 ! root 469: abort ();
1.1.1.3 root 470: }
471:
1.1.1.5 ! root 472: if (queued)
! 473: done_queue ();
! 474:
1.1.1.3 root 475: /* We get here for all non-reg non-immediate addressing modes to
476: * actually fetch the value. */
477:
478: if (using_exception_3 && getv != 0 && size != sz_byte) {
1.1.1.5 ! root 479: if (queued) {
! 480: flush_amodes ();
! 481: queued = 0;
! 482: }
! 483:
1.1.1.3 root 484: printf ("\tif ((%sa & 1) != 0) {\n", name);
485: printf ("\t\tlast_fault_for_exception_3 = %sa;\n", name);
1.1.1.5 ! root 486: printf ("\t\tlast_op_for_exception_3 = opcode;\n");
1.1.1.3 root 487: printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + %d;\n", m68k_pc_offset);
488: printf ("\t\tException(3, 0);\n");
489: printf ("\t\tgoto %s;\n", endlabelstr);
490: printf ("\t}\n");
1.1.1.5 ! root 491: need_endlabel = 1;
1.1.1.3 root 492: start_brace ();
493: }
494: /* We now might have to fix up the register for pre-dec or post-inc
495: * addressing modes. */
496: if (!movem)
497: switch (mode) {
498: case Aipi:
1.1.1.5 ! root 499: if (queued)
! 500: abort ();
! 501: switch (size) {
1.1 root 502: case sz_byte:
1.1.1.3 root 503: printf ("\tm68k_areg(regs, %s) += areg_byteinc[%s];\n", reg, reg);
1.1 root 504: break;
505: case sz_word:
1.1.1.3 root 506: printf ("\tm68k_areg(regs, %s) += 2;\n", reg);
1.1 root 507: break;
508: case sz_long:
1.1.1.3 root 509: printf ("\tm68k_areg(regs, %s) += 4;\n", reg);
1.1 root 510: break;
1.1.1.5 ! root 511: default:
! 512: abort ();
1.1 root 513: }
1.1.1.3 root 514: break;
515: case Apdi:
1.1.1.5 ! root 516: if (queued)
! 517: abort ();
1.1.1.3 root 518: printf ("\tm68k_areg (regs, %s) = %sa;\n", reg, name);
519: break;
520: default:
521: break;
522: }
1.1.1.5 ! root 523: if (getv == 1) {
! 524: switch (size) {
! 525: case sz_byte: insn_n_cycles += 2; break;
! 526: case sz_word: insn_n_cycles += 2; break;
! 527: case sz_long: insn_n_cycles += 4; break;
! 528: default: abort ();
! 529: }
! 530: if (queued)
! 531: switch (size) {
! 532: case sz_byte: queue_amode ("\tuae_s8 %s = get_byte(%sa);\n", name, name); break;
! 533: case sz_word: queue_amode ("\tuae_s16 %s = get_word(%sa);\n", name, name); break;
! 534: case sz_long: queue_amode ("\tuae_s32 %s = get_long(%sa);\n", name, name); break;
! 535: default: abort ();
! 536: }
! 537: else {
! 538: start_brace ();
! 539: switch (size) {
! 540: case sz_byte: printf ("\tuae_s8 %s = get_byte(%sa);\n", name, name); break;
! 541: case sz_word: printf ("\tuae_s16 %s = get_word(%sa);\n", name, name); break;
! 542: case sz_long: printf ("\tuae_s32 %s = get_long(%sa);\n", name, name); break;
! 543: default: abort ();
! 544: }
! 545: }
! 546: }
1.1 root 547: }
548:
1.1.1.3 root 549: static void genastore (char *from, amodes mode, char *reg, wordsizes size, char *to)
1.1 root 550: {
1.1.1.5 ! root 551: switch (mode) {
1.1 root 552: case Dreg:
1.1.1.5 ! root 553: switch (size) {
1.1 root 554: case sz_byte:
1.1.1.3 root 555: printf ("\tm68k_dreg(regs, %s) = (m68k_dreg(regs, %s) & ~0xff) | ((%s) & 0xff);\n", reg, reg, from);
1.1 root 556: break;
557: case sz_word:
1.1.1.3 root 558: printf ("\tm68k_dreg(regs, %s) = (m68k_dreg(regs, %s) & ~0xffff) | ((%s) & 0xffff);\n", reg, reg, from);
1.1 root 559: break;
560: case sz_long:
1.1.1.3 root 561: printf ("\tm68k_dreg(regs, %s) = (%s);\n", reg, from);
1.1 root 562: break;
1.1.1.5 ! root 563: default:
! 564: abort ();
1.1 root 565: }
566: break;
567: case Areg:
1.1.1.5 ! root 568: switch (size) {
1.1 root 569: case sz_word:
1.1.1.3 root 570: fprintf (stderr, "Foo\n");
571: printf ("\tm68k_areg(regs, %s) = (uae_s32)(uae_s16)(%s);\n", reg, from);
1.1 root 572: break;
573: case sz_long:
1.1.1.3 root 574: printf ("\tm68k_areg(regs, %s) = (%s);\n", reg, from);
1.1 root 575: break;
1.1.1.5 ! root 576: default:
! 577: abort ();
1.1 root 578: }
579: break;
580: case Aind:
581: case Aipi:
582: case Apdi:
583: case Ad16:
584: case Ad8r:
585: case absw:
586: case absl:
587: case PC16:
588: case PC8r:
1.1.1.3 root 589: if (using_prefetch)
1.1.1.5 ! root 590: sync_m68k_pc ();
! 591: switch (size) {
1.1 root 592: case sz_byte:
1.1.1.5 ! root 593: insn_n_cycles += 2;
1.1.1.3 root 594: printf ("\tput_byte(%sa,%s);\n", to, from);
1.1 root 595: break;
596: case sz_word:
1.1.1.5 ! root 597: insn_n_cycles += 2;
! 598: if (cpu_level < 2 && (mode == PC16 || mode == PC8r))
! 599: abort ();
1.1.1.3 root 600: printf ("\tput_word(%sa,%s);\n", to, from);
1.1 root 601: break;
602: case sz_long:
1.1.1.5 ! root 603: insn_n_cycles += 4;
! 604: if (cpu_level < 2 && (mode == PC16 || mode == PC8r))
! 605: abort ();
1.1.1.3 root 606: printf ("\tput_long(%sa,%s);\n", to, from);
1.1 root 607: break;
1.1.1.5 ! root 608: default:
! 609: abort ();
1.1 root 610: }
611: break;
612: case imm:
613: case imm0:
614: case imm1:
615: case imm2:
616: case immi:
1.1.1.5 ! root 617: abort ();
1.1 root 618: break;
1.1.1.3 root 619: default:
1.1.1.5 ! root 620: abort ();
1.1 root 621: }
622: }
623:
1.1.1.5 ! root 624: static void genmovemel (uae_u16 opcode)
1.1 root 625: {
626: char getcode[100];
627: int size = table68k[opcode].size == sz_long ? 4 : 2;
1.1.1.3 root 628:
629: if (table68k[opcode].size == sz_long) {
1.1.1.5 ! root 630: strcpy (getcode, "get_long(srca)");
1.1.1.3 root 631: } else {
1.1.1.5 ! root 632: strcpy (getcode, "(uae_s32)(uae_s16)get_word(srca)");
1.1 root 633: }
1.1.1.3 root 634:
1.1.1.5 ! root 635: printf ("\tuae_u16 mask = %s;\n", gen_nextiword ());
1.1.1.3 root 636: printf ("\tunsigned int dmask = mask & 0xff, amask = (mask >> 8) & 0xff;\n");
637: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 2, 1);
1.1.1.5 ! root 638: flush_amodes ();
! 639: start_brace ();
1.1.1.3 root 640: printf ("\twhile (dmask) { m68k_dreg(regs, movem_index1[dmask]) = %s; srca += %d; dmask = movem_next[dmask]; }\n",
1.1.1.5 ! root 641: getcode, size);
1.1.1.3 root 642: printf ("\twhile (amask) { m68k_areg(regs, movem_index1[amask]) = %s; srca += %d; amask = movem_next[amask]; }\n",
1.1.1.5 ! root 643: getcode, size);
1.1 root 644:
645: if (table68k[opcode].dmode == Aipi)
1.1.1.3 root 646: printf ("\tm68k_areg(regs, dstreg) = srca;\n");
1.1 root 647: }
648:
1.1.1.5 ! root 649: static void genmovemle (uae_u16 opcode)
1.1 root 650: {
651: char putcode[100];
652: int size = table68k[opcode].size == sz_long ? 4 : 2;
653: if (table68k[opcode].size == sz_long) {
1.1.1.5 ! root 654: strcpy (putcode, "put_long(srca,");
1.1.1.3 root 655: } else {
1.1.1.5 ! root 656: strcpy (putcode, "put_word(srca,");
1.1 root 657: }
1.1.1.3 root 658:
1.1.1.5 ! root 659: printf ("\tuae_u16 mask = %s;\n", gen_nextiword ());
1.1.1.3 root 660: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 2, 1);
1.1.1.5 ! root 661: flush_amodes ();
1.1.1.3 root 662: if (using_prefetch)
1.1.1.5 ! root 663: sync_m68k_pc ();
1.1.1.3 root 664:
1.1.1.5 ! root 665: start_brace ();
1.1 root 666: if (table68k[opcode].dmode == Apdi) {
1.1.1.3 root 667: printf ("\tuae_u16 amask = mask & 0xff, dmask = (mask >> 8) & 0xff;\n");
668: printf ("\twhile (amask) { srca -= %d; %s m68k_areg(regs, movem_index2[amask])); amask = movem_next[amask]; }\n",
1.1.1.5 ! root 669: size, putcode);
1.1.1.3 root 670: printf ("\twhile (dmask) { srca -= %d; %s m68k_dreg(regs, movem_index2[dmask])); dmask = movem_next[dmask]; }\n",
1.1.1.5 ! root 671: size, putcode);
1.1.1.3 root 672: printf ("\tm68k_areg(regs, dstreg) = srca;\n");
1.1.1.2 root 673: } else {
1.1.1.3 root 674: printf ("\tuae_u16 dmask = mask & 0xff, amask = (mask >> 8) & 0xff;\n");
675: printf ("\twhile (dmask) { %s m68k_dreg(regs, movem_index1[dmask])); srca += %d; dmask = movem_next[dmask]; }\n",
1.1.1.5 ! root 676: putcode, size);
1.1.1.3 root 677: printf ("\twhile (amask) { %s m68k_areg(regs, movem_index1[amask])); srca += %d; amask = movem_next[amask]; }\n",
1.1.1.5 ! root 678: putcode, size);
1.1 root 679: }
680: }
681:
682: typedef enum {
683: flag_logical, flag_add, flag_sub, flag_cmp, flag_addx, flag_subx, flag_zn,
684: flag_av, flag_sv
685: } flagtypes;
686:
1.1.1.5 ! root 687: static void genflags_normal (flagtypes type, wordsizes size, char *value, char *src, char *dst)
1.1 root 688: {
1.1.1.5 ! root 689: char vstr[100], sstr[100], dstr[100];
! 690: char usstr[100], udstr[100];
! 691: char unsstr[100], undstr[100];
1.1 root 692:
1.1.1.5 ! root 693: switch (size) {
1.1 root 694: case sz_byte:
1.1.1.5 ! root 695: strcpy (vstr, "((uae_s8)(");
! 696: strcpy (usstr, "((uae_u8)(");
1.1 root 697: break;
698: case sz_word:
1.1.1.5 ! root 699: strcpy (vstr, "((uae_s16)(");
! 700: strcpy (usstr, "((uae_u16)(");
1.1 root 701: break;
702: case sz_long:
1.1.1.5 ! root 703: strcpy (vstr, "((uae_s32)(");
! 704: strcpy (usstr, "((uae_u32)(");
1.1 root 705: break;
706: default:
1.1.1.5 ! root 707: abort ();
1.1 root 708: }
1.1.1.5 ! root 709: strcpy (unsstr, usstr);
1.1 root 710:
1.1.1.5 ! root 711: strcpy (sstr, vstr);
! 712: strcpy (dstr, vstr);
! 713: strcat (vstr, value);
! 714: strcat (vstr, "))");
! 715: strcat (dstr, dst);
! 716: strcat (dstr, "))");
! 717: strcat (sstr, src);
! 718: strcat (sstr, "))");
! 719:
! 720: strcpy (udstr, usstr);
! 721: strcat (udstr, dst);
! 722: strcat (udstr, "))");
! 723: strcat (usstr, src);
! 724: strcat (usstr, "))");
! 725:
! 726: strcpy (undstr, unsstr);
! 727: strcat (unsstr, "-");
! 728: strcat (undstr, "~");
! 729: strcat (undstr, dst);
! 730: strcat (undstr, "))");
! 731: strcat (unsstr, src);
! 732: strcat (unsstr, "))");
1.1 root 733:
734: switch (type) {
735: case flag_logical:
736: case flag_zn:
737: case flag_av:
738: case flag_sv:
739: case flag_addx:
740: case flag_subx:
741: break;
1.1.1.3 root 742:
1.1 root 743: case flag_add:
1.1.1.5 ! root 744: start_brace ();
1.1.1.3 root 745: printf ("uae_u32 %s = %s + %s;\n", value, dstr, sstr);
1.1 root 746: break;
747: case flag_sub:
748: case flag_cmp:
1.1.1.5 ! root 749: start_brace ();
1.1.1.3 root 750: printf ("uae_u32 %s = %s - %s;\n", value, dstr, sstr);
1.1 root 751: break;
752: }
753:
754:
755: switch (type) {
756: case flag_logical:
757: case flag_zn:
758: break;
1.1.1.3 root 759:
1.1 root 760: case flag_add:
761: case flag_sub:
762: case flag_addx:
763: case flag_subx:
764: case flag_cmp:
765: case flag_av:
766: case flag_sv:
1.1.1.5 ! root 767: start_brace ();
! 768: printf ("\t" BOOL_TYPE " flgs = %s < 0;\n", sstr);
! 769: printf ("\t" BOOL_TYPE " flgo = %s < 0;\n", dstr);
! 770: printf ("\t" BOOL_TYPE " flgn = %s < 0;\n", vstr);
1.1 root 771: break;
772: }
1.1.1.3 root 773:
1.1.1.5 ! root 774: switch (type) {
1.1 root 775: case flag_logical:
1.1.1.3 root 776: printf ("\tVFLG = CFLG = 0;\n");
777: printf ("\tZFLG = %s == 0;\n", vstr);
778: printf ("\tNFLG = %s < 0;\n", vstr);
1.1 root 779: break;
780: case flag_av:
1.1.1.5 ! root 781: printf ("\tVFLG = (flgs ^ flgn) & (flgo ^ flgn);\n");
1.1 root 782: break;
783: case flag_sv:
1.1.1.5 ! root 784: printf ("\tVFLG = (flgs ^ flgo) & (flgn ^ flgo);\n");
1.1 root 785: break;
786: case flag_zn:
1.1.1.3 root 787: printf ("\tif (%s != 0) ZFLG = 0;\n", vstr);
788: printf ("\tNFLG = %s < 0;\n", vstr);
1.1 root 789: break;
790: case flag_add:
1.1.1.3 root 791: printf ("\tZFLG = %s == 0;\n", vstr);
1.1.1.5 ! root 792: printf ("\tVFLG = (flgs ^ flgn) & (flgo ^ flgn);\n");
1.1.1.3 root 793: printf ("\tCFLG = XFLG = %s < %s;\n", undstr, usstr);
794: printf ("\tNFLG = flgn != 0;\n");
1.1 root 795: break;
796: case flag_sub:
1.1.1.3 root 797: printf ("\tZFLG = %s == 0;\n", vstr);
1.1.1.5 ! root 798: printf ("\tVFLG = (flgs ^ flgo) & (flgn ^ flgo);\n");
1.1.1.3 root 799: printf ("\tCFLG = XFLG = %s > %s;\n", usstr, udstr);
800: printf ("\tNFLG = flgn != 0;\n");
1.1 root 801: break;
802: case flag_addx:
1.1.1.5 ! root 803: #if 0
! 804: printf ("\tVFLG = (flgs && flgo && !flgn) || (!flgs && !flgo && flgn);\n"); /* minterm SON: 0x42 */
! 805: printf ("\tXFLG = CFLG = (flgs && flgo) || (!flgn && (flgo || flgs));\n"); /* minterm SON: 0xD4 */
! 806: #else
! 807: printf ("\tVFLG = (flgs ^ flgn) & (flgo ^ flgn);\n"); /* minterm SON: 0x42 */
! 808: printf ("\tXFLG = CFLG = flgs ^ ((flgs ^ flgo) & (flgo ^ flgn));\n"); /* minterm SON: 0xD4 */
! 809: #endif
1.1 root 810: break;
811: case flag_subx:
1.1.1.5 ! root 812: #if 0
! 813: printf ("\tVFLG = (!flgs && flgo && !flgn) || (flgs && !flgo && flgn);\n"); /* minterm SON: 0x24 */
! 814: printf ("\tXFLG = CFLG = (flgs && !flgo) || (flgn && (!flgo || flgs));\n"); /* minterm SON: 0xB2 */
! 815: #else
! 816: printf ("\tVFLG = (flgs ^ flgo) & (flgo ^ flgn);\n"); /* minterm SON: 0x24 */
! 817: printf ("\tXFLG = CFLG = flgs ^ ((flgs ^ flgn) & (flgo ^ flgn));\n"); /* minterm SON: 0xB2 */
! 818: #endif
1.1 root 819: break;
820: case flag_cmp:
1.1.1.3 root 821: printf ("\tZFLG = %s == 0;\n", vstr);
822: printf ("\tVFLG = (flgs != flgo) && (flgn != flgo);\n");
823: printf ("\tCFLG = %s > %s;\n", usstr, udstr);
824: printf ("\tNFLG = flgn != 0;\n");
1.1 root 825: break;
826: }
827: }
828:
1.1.1.5 ! root 829: static void genflags (flagtypes type, wordsizes size, char *value, char *src, char *dst)
1.1 root 830: {
1.1.1.3 root 831: #ifdef X86_ASSEMBLY
1.1.1.5 ! root 832: start_brace ();
1.1.1.3 root 833: printf ("\tuae_u32 scratch;\n");
1.1 root 834: switch (type) {
1.1.1.5 ! root 835: case flag_add:
! 836: case flag_sub:
! 837: start_brace ();
1.1.1.3 root 838: printf ("\tuae_u32 %s;\n", value);
1.1 root 839: break;
840:
1.1.1.3 root 841: default:
1.1 root 842: break;
843: }
844:
1.1.1.3 root 845: /* At least some of those casts are fairly important! */
1.1.1.5 ! root 846: switch (type) {
1.1 root 847: case flag_logical:
1.1.1.5 ! root 848: if (strcmp (value, "0") == 0) {
1.1.1.3 root 849: printf ("\t*(uae_u32 *)®flags = 64;\n");
1.1 root 850: } else {
1.1.1.5 ! root 851: switch (size) {
1.1.1.3 root 852: case sz_byte: printf ("\tx86_flag_testb ((uae_s8)(%s));\n", value); break;
853: case sz_word: printf ("\tx86_flag_testw ((uae_s16)(%s));\n", value); break;
854: case sz_long: printf ("\tx86_flag_testl ((uae_s32)(%s));\n", value); break;
1.1 root 855: }
856: }
857: return;
858:
859: case flag_add:
1.1.1.5 ! root 860: switch (size) {
1.1.1.3 root 861: case sz_byte: printf ("\tx86_flag_addb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
862: case sz_word: printf ("\tx86_flag_addw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
863: case sz_long: printf ("\tx86_flag_addl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
1.1 root 864: }
865: return;
866:
867: case flag_sub:
1.1.1.5 ! root 868: switch (size) {
1.1.1.3 root 869: case sz_byte: printf ("\tx86_flag_subb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
870: case sz_word: printf ("\tx86_flag_subw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
871: case sz_long: printf ("\tx86_flag_subl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
1.1 root 872: }
873: return;
874:
875: case flag_cmp:
1.1.1.5 ! root 876: switch (size) {
1.1.1.3 root 877: case sz_byte: printf ("\tx86_flag_cmpb ((uae_s8)(%s), (uae_s8)(%s));\n", src, dst); break;
878: case sz_word: printf ("\tx86_flag_cmpw ((uae_s16)(%s), (uae_s16)(%s));\n", src, dst); break;
879: case sz_long: printf ("\tx86_flag_cmpl ((uae_s32)(%s), (uae_s32)(%s));\n", src, dst); break;
1.1 root 880: }
881: return;
1.1.1.5 ! root 882:
1.1.1.3 root 883: default:
884: break;
1.1 root 885: }
1.1.1.2 root 886: #elif defined(M68K_FLAG_OPT)
1.1.1.3 root 887: /* sam: here I'm cloning what X86_ASSEMBLY does */
888: #define EXT(size) (size==sz_byte?"b":(size==sz_word?"w":"l"))
889: #define CAST(size) (size==sz_byte?"uae_s8":(size==sz_word?"uae_s16":"uae_s32"))
1.1.1.2 root 890: switch (type) {
1.1.1.5 ! root 891: case flag_add:
! 892: case flag_sub:
! 893: start_brace ();
1.1.1.3 root 894: printf ("\tuae_u32 %s;\n", value);
1.1.1.2 root 895: break;
896:
1.1.1.3 root 897: default:
1.1.1.2 root 898: break;
899: }
900:
1.1.1.5 ! root 901: switch (type) {
1.1.1.2 root 902: case flag_logical:
1.1.1.5 ! root 903: if (strcmp (value, "0") == 0) {
! 904: printf ("\t*(uae_u16 *)®flags = 4;\n"); /* Z = 1 */
1.1.1.2 root 905: } else {
1.1.1.5 ! root 906: printf ("\tm68k_flag_tst (%s, (%s)(%s));\n",
! 907: EXT (size), CAST (size), value);
1.1.1.2 root 908: }
909: return;
910:
911: case flag_add:
1.1.1.3 root 912: printf ("\t{uae_u16 ccr;\n");
1.1.1.5 ! root 913: printf ("\tm68k_flag_add (%s, (%s)%s, (%s)(%s), (%s)(%s));\n",
! 914: EXT (size), CAST (size), value, CAST (size), src, CAST (size), dst);
1.1.1.3 root 915: printf ("\t((uae_u16*)®flags)[1]=((uae_u16*)®flags)[0]=ccr;}\n");
1.1.1.2 root 916: return;
917:
918: case flag_sub:
1.1.1.3 root 919: printf ("\t{uae_u16 ccr;\n");
1.1.1.5 ! root 920: printf ("\tm68k_flag_sub (%s, (%s)%s, (%s)(%s), (%s)(%s));\n",
! 921: EXT (size), CAST (size), value, CAST (size), src, CAST (size), dst);
1.1.1.3 root 922: printf ("\t((uae_u16*)®flags)[1]=((uae_u16*)®flags)[0]=ccr;}\n");
1.1.1.2 root 923: return;
924:
925: case flag_cmp:
1.1.1.5 ! root 926: printf ("\tm68k_flag_cmp (%s, (%s)(%s), (%s)(%s));\n",
! 927: EXT (size), CAST (size), src, CAST (size), dst);
1.1.1.2 root 928: return;
1.1.1.3 root 929:
930: default:
931: break;
1.1.1.2 root 932: }
1.1.1.3 root 933: #elif defined(ACORN_FLAG_OPT) && defined(__GNUC_MINOR__)
934: /*
935: * This is new. Might be quite buggy.
936: */
1.1.1.5 ! root 937: switch (type) {
! 938: case flag_av:
! 939: case flag_sv:
! 940: case flag_zn:
! 941: case flag_addx:
! 942: case flag_subx:
! 943: break;
! 944:
! 945: case flag_logical:
! 946: if (strcmp (value, "0") == 0) {
! 947: /* v=c=n=0 z=1 */
! 948: printf ("\t*(ULONG*)®flags = 0x40000000;\n");
1.1.1.3 root 949: return;
1.1.1.5 ! root 950: } else {
! 951: start_brace ();
! 952: switch (size) {
! 953: case sz_byte:
! 954: printf ("\tUBYTE ccr;\n");
! 955: printf ("\tULONG shift;\n");
! 956: printf ("\t__asm__(\"mov %%2,%%1,lsl#24\n\ttst %%2,%%2\n\tmov %%0,r15,lsr#24\n\tbic %%0,%%0,#0x30\"\n"
! 957: "\t: \"=r\" (ccr) : \"r\" (%s), \"r\" (shift) : \"cc\" );\n", value);
! 958: printf ("\t*((UBYTE*)®flags+3) = ccr;\n");
! 959: return;
! 960: case sz_word:
! 961: printf ("\tUBYTE ccr;\n");
! 962: printf ("\tULONG shift;\n");
! 963: printf ("\t__asm__(\"mov %%2,%%1,lsl#16\n\ttst %%2,%%2\n\tmov %%0,r15,lsr#24\n\tbic %%0,%%0,#0x30\"\n"
! 964: "\t: \"=r\" (ccr) : \"r\" ((WORD)%s), \"r\" (shift) : \"cc\" );\n", value);
! 965: printf ("\t*((UBYTE*)®flags+3) = ccr;\n");
! 966: return;
! 967: case sz_long:
! 968: printf ("\tUBYTE ccr;\n");
! 969: printf ("\t__asm__(\"tst %%1,%%1\n\tmov %%0,r15,lsr#24\n\tbic %%0,%%0,#0x30\"\n"
! 970: "\t: \"=r\" (ccr) : \"r\" ((LONG)%s) : \"cc\" );\n", value);
! 971: printf ("\t*((UBYTE*)®flags+3) = ccr;\n");
! 972: return;
! 973: }
1.1.1.3 root 974: }
1.1.1.5 ! root 975: break;
! 976: case flag_add:
! 977: if (strcmp (dst, "0") == 0) {
! 978: printf ("/* Error! Hier muss Peter noch was machen !!! (ADD-Flags) */");
! 979: } else {
! 980: start_brace ();
! 981: switch (size) {
! 982: case sz_byte:
! 983: printf ("\tULONG ccr, shift, %s;\n", value);
! 984: printf ("\t__asm__(\"mov %%4,%%3,lsl#24\n\tadds %%0,%%4,%%2,lsl#24\n\tmov %%0,%%0,asr#24\n\tmov %%1,r15\n\torr %%1,%%1,%%1,lsr#29\"\n"
! 985: "\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" (%s), \"r\" (%s), \"r\" (shift) : \"cc\" );\n", value, src, dst);
! 986: printf ("\t*(ULONG*)®flags = ccr;\n");
! 987: return;
! 988: case sz_word:
! 989: printf ("\tULONG ccr, shift, %s;\n", value);
! 990: printf ("\t__asm__(\"mov %%4,%%3,lsl#16\n\tadds %%0,%%4,%%2,lsl#16\n\tmov %%0,%%0,asr#16\n\tmov %%1,r15\n\torr %%1,%%1,%%1,lsr#29\"\n"
! 991: "\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" ((WORD)%s), \"r\" ((WORD)%s), \"r\" (shift) : \"cc\" );\n", value, src, dst);
! 992: printf ("\t*(ULONG*)®flags = ccr;\n");
! 993: return;
! 994: case sz_long:
! 995: printf ("\tULONG ccr, %s;\n", value);
! 996: printf ("\t__asm__(\"adds %%0,%%3,%%2\n\tmov %%1,r15\n\torr %%1,%%1,%%1,lsr#29\"\n"
! 997: "\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" ((LONG)%s), \"r\" ((LONG)%s) : \"cc\" );\n", value, src, dst);
! 998: printf ("\t*(ULONG*)®flags = ccr;\n");
! 999: return;
! 1000: }
1.1.1.3 root 1001: }
1.1.1.5 ! root 1002: break;
! 1003: case flag_sub:
! 1004: if (strcmp (dst, "0") == 0) {
! 1005: printf ("/* Error! Hier muss Peter noch was machen !!! (SUB-Flags) */");
! 1006: } else {
! 1007: start_brace ();
! 1008: switch (size) {
! 1009: case sz_byte:
! 1010: printf ("\tULONG ccr, shift, %s;\n", value);
! 1011: printf ("\t__asm__(\"mov %%4,%%3,lsl#24\n\tsubs %%0,%%4,%%2,lsl#24\n\tmov %%0,%%0,asr#24\n\tmov %%1,r15\n\teor %%1,%%1,#0x20000000\n\torr %%1,%%1,%%1,lsr#29\"\n"
! 1012: "\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" (%s), \"r\" (%s), \"r\" (shift) : \"cc\" );\n", value, src, dst);
! 1013: printf ("\t*(ULONG*)®flags = ccr;\n");
! 1014: return;
! 1015: case sz_word:
! 1016: printf ("\tULONG ccr, shift, %s;\n", value);
! 1017: printf ("\t__asm__(\"mov %%4,%%3,lsl#16\n\tsubs %%0,%%4,%%2,lsl#16\n\tmov %%0,%%0,asr#16\n\tmov %%1,r15\n\teor %%1,%%1,#0x20000000\n\torr %%1,%%1,%%1,lsr#29\"\n"
! 1018: "\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" ((WORD)%s), \"r\" ((WORD)%s), \"r\" (shift) : \"cc\" );\n", value, src, dst);
! 1019: printf ("\t*(ULONG*)®flags = ccr;\n");
! 1020: return;
! 1021: case sz_long:
! 1022: printf ("\tULONG ccr, %s;\n", value);
! 1023: printf ("\t__asm__(\"subs %%0,%%3,%%2\n\tmov %%1,r15\n\teor %%1,%%1,#0x20000000\n\torr %%1,%%1,%%1,lsr#29\"\n"
! 1024: "\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" ((LONG)%s), \"r\" ((LONG)%s) : \"cc\" );\n", value, src, dst);
! 1025: printf ("\t*(ULONG*)®flags = ccr;\n");
! 1026: return;
! 1027: }
1.1.1.3 root 1028: }
1.1.1.5 ! root 1029: break;
! 1030: case flag_cmp:
! 1031: if (strcmp (dst, "0") == 0) {
! 1032: printf ("/*Error! Hier muss Peter noch was machen !!! (CMP-Flags)*/");
! 1033: } else {
! 1034: start_brace ();
! 1035: switch (size) {
! 1036: case sz_byte:
! 1037: printf ("\tULONG shift, ccr;\n");
! 1038: printf ("\t__asm__(\"mov %%3,%%2,lsl#24\n\tcmp %%3,%%1,lsl#24\n\tmov %%0,r15,lsr#24\n\teor %%0,%%0,#0x20\"\n"
! 1039: "\t: \"=r\" (ccr) : \"r\" (%s), \"r\" (%s), \"r\" (shift) : \"cc\" );\n", src, dst);
! 1040: printf ("\t*((UBYTE*)®flags+3) = ccr;\n");
! 1041: return;
! 1042: case sz_word:
! 1043: printf ("\tULONG shift, ccr;\n");
! 1044: printf ("\t__asm__(\"mov %%3,%%2,lsl#16\n\tcmp %%3,%%1,lsl#16\n\tmov %%0,r15,lsr#24\n\teor %%0,%%0,#0x20\"\n"
! 1045: "\t: \"=r\" (ccr) : \"r\" ((WORD)%s), \"r\" ((WORD)%s), \"r\" (shift) : \"cc\" );\n", src, dst);
! 1046: printf ("\t*((UBYTE*)®flags+3) = ccr;\n");
! 1047: return;
! 1048: case sz_long:
! 1049: printf ("\tULONG ccr;\n");
! 1050: printf ("\t__asm__(\"cmp %%2,%%1\n\tmov %%0,r15,lsr#24\n\teor %%0,%%0,#0x20\"\n"
! 1051: "\t: \"=r\" (ccr) : \"r\" ((LONG)%s), \"r\" ((LONG)%s) : \"cc\" );\n", src, dst);
! 1052: printf ("\t*((UBYTE*)®flags+3) = ccr;\n");
! 1053: /*printf ("\tprintf (\"%%08x %%08x %%08x\\n\", %s, %s, *((ULONG*)®flags));\n", src, dst); */
! 1054: return;
! 1055: }
! 1056: }
! 1057: break;
! 1058: }
1.1 root 1059: #endif
1.1.1.5 ! root 1060: genflags_normal (type, size, value, src, dst);
1.1 root 1061: }
1.1.1.3 root 1062:
1.1.1.5 ! root 1063: static void gen_opcode (unsigned long int opcode)
1.1 root 1064: {
1.1.1.5 ! root 1065: aq_head = 0;
! 1066: insn_n_cycles = 2;
! 1067:
1.1 root 1068: start_brace ();
1.1.1.3 root 1069: #if 0
1070: printf ("uae_u8 *m68k_pc = regs.pc_p;\n");
1071: #endif
1072: m68k_pc_offset = 2;
1.1 root 1073: switch (table68k[opcode].plev) {
1.1.1.3 root 1074: case 0: /* not privileged */
1.1 root 1075: break;
1.1.1.3 root 1076: case 1: /* unprivileged only on 68000 */
1077: if (cpu_level == 0)
1.1 root 1078: break;
1.1.1.3 root 1079: if (next_cpu_level < 0)
1080: next_cpu_level = 0;
1081:
1.1.1.5 ! root 1082: /* fall through */
1.1 root 1083: case 2: /* priviledged */
1.1.1.3 root 1084: printf ("if (!regs.s) { Exception(8,0); goto %s; }\n", endlabelstr);
1.1.1.5 ! root 1085: need_endlabel = 1;
! 1086: start_brace ();
1.1 root 1087: break;
1.1.1.3 root 1088: case 3: /* privileged if size == word */
1.1 root 1089: if (table68k[opcode].size == sz_byte)
1090: break;
1.1.1.3 root 1091: printf ("if (!regs.s) { Exception(8,0); goto %s; }\n", endlabelstr);
1.1.1.5 ! root 1092: need_endlabel = 1;
! 1093: start_brace ();
1.1 root 1094: break;
1095: }
1.1.1.5 ! root 1096: switch (table68k[opcode].mnemo) {
1.1 root 1097: case i_OR:
1.1.1.3 root 1098: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1099: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1100: flush_amodes ();
1.1.1.3 root 1101: printf ("\tsrc |= dst;\n");
1.1.1.5 ! root 1102: genflags (flag_logical, table68k[opcode].size, "src", "", "");
1.1.1.3 root 1103: genastore ("src", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1104: break;
1105: case i_AND:
1.1.1.3 root 1106: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1107: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1108: flush_amodes ();
1.1.1.3 root 1109: printf ("\tsrc &= dst;\n");
1.1.1.5 ! root 1110: genflags (flag_logical, table68k[opcode].size, "src", "", "");
1.1.1.3 root 1111: genastore ("src", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1112: break;
1113: case i_EOR:
1.1.1.3 root 1114: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1115: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1116: flush_amodes ();
1.1.1.3 root 1117: printf ("\tsrc ^= dst;\n");
1.1.1.5 ! root 1118: genflags (flag_logical, table68k[opcode].size, "src", "", "");
1.1.1.3 root 1119: genastore ("src", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1120: break;
1121: case i_ORSR:
1.1.1.3 root 1122: printf ("\tMakeSR();\n");
1123: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1124: flush_amodes ();
1.1 root 1125: if (table68k[opcode].size == sz_byte) {
1.1.1.3 root 1126: printf ("\tsrc &= 0xFF;\n");
1.1 root 1127: }
1.1.1.3 root 1128: printf ("\tregs.sr |= src;\n");
1129: printf ("\tMakeFromSR();\n");
1.1 root 1130: break;
1.1.1.3 root 1131: case i_ANDSR:
1132: printf ("\tMakeSR();\n");
1133: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1134: flush_amodes ();
1.1 root 1135: if (table68k[opcode].size == sz_byte) {
1.1.1.3 root 1136: printf ("\tsrc |= 0xFF00;\n");
1.1 root 1137: }
1.1.1.3 root 1138: printf ("\tregs.sr &= src;\n");
1139: printf ("\tMakeFromSR();\n");
1.1 root 1140: break;
1141: case i_EORSR:
1.1.1.3 root 1142: printf ("\tMakeSR();\n");
1143: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1144: flush_amodes ();
1.1 root 1145: if (table68k[opcode].size == sz_byte) {
1.1.1.3 root 1146: printf ("\tsrc &= 0xFF;\n");
1.1 root 1147: }
1.1.1.3 root 1148: printf ("\tregs.sr ^= src;\n");
1149: printf ("\tMakeFromSR();\n");
1.1 root 1150: break;
1.1.1.3 root 1151: case i_SUB:
1152: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1153: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1154: flush_amodes ();
1.1 root 1155: start_brace ();
1.1.1.5 ! root 1156: genflags (flag_sub, table68k[opcode].size, "newv", "src", "dst");
1.1.1.3 root 1157: genastore ("newv", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1158: break;
1159: case i_SUBA:
1.1.1.3 root 1160: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1161: genamode (table68k[opcode].dmode, "dstreg", sz_long, "dst", 1, 0);
1.1.1.5 ! root 1162: flush_amodes ();
1.1 root 1163: start_brace ();
1.1.1.3 root 1164: printf ("\tuae_u32 newv = dst - src;\n");
1165: genastore ("newv", table68k[opcode].dmode, "dstreg", sz_long, "dst");
1.1 root 1166: break;
1167: case i_SUBX:
1.1.1.3 root 1168: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1169: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1170: flush_amodes ();
1.1 root 1171: start_brace ();
1.1.1.3 root 1172: printf ("\tuae_u32 newv = dst - src - (XFLG ? 1 : 0);\n");
1.1.1.5 ! root 1173: genflags (flag_subx, table68k[opcode].size, "newv", "src", "dst");
! 1174: genflags (flag_zn, table68k[opcode].size, "newv", "", "");
1.1.1.3 root 1175: genastore ("newv", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1176: break;
1177: case i_SBCD:
1178: /* Let's hope this works... */
1.1.1.3 root 1179: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1180: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1181: flush_amodes ();
1.1 root 1182: start_brace ();
1.1.1.3 root 1183: printf ("\tuae_u16 newv_lo = (dst & 0xF) - (src & 0xF) - (XFLG ? 1 : 0);\n");
1184: printf ("\tuae_u16 newv_hi = (dst & 0xF0) - (src & 0xF0);\n");
1185: printf ("\tuae_u16 newv;\n");
1186: printf ("\tif (newv_lo > 9) { newv_lo-=6; newv_hi-=0x10; }\n");
1187: printf ("\tnewv = newv_hi + (newv_lo & 0xF);");
1188: printf ("\tCFLG = XFLG = (newv_hi & 0x1F0) > 0x90;\n");
1189: printf ("\tif (CFLG) newv -= 0x60;\n");
1.1.1.5 ! root 1190: genflags (flag_zn, table68k[opcode].size, "newv", "", "");
! 1191: genflags (flag_sv, table68k[opcode].size, "newv", "src", "dst");
1.1.1.3 root 1192: genastore ("newv", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1193: break;
1194: case i_ADD:
1.1.1.3 root 1195: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1196: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1197: flush_amodes ();
1.1 root 1198: start_brace ();
1.1.1.5 ! root 1199: genflags (flag_add, table68k[opcode].size, "newv", "src", "dst");
1.1.1.3 root 1200: genastore ("newv", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1201: break;
1.1.1.3 root 1202: case i_ADDA:
1203: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1204: genamode (table68k[opcode].dmode, "dstreg", sz_long, "dst", 1, 0);
1.1.1.5 ! root 1205: flush_amodes ();
1.1 root 1206: start_brace ();
1.1.1.3 root 1207: printf ("\tuae_u32 newv = dst + src;\n");
1208: genastore ("newv", table68k[opcode].dmode, "dstreg", sz_long, "dst");
1.1 root 1209: break;
1210: case i_ADDX:
1.1.1.3 root 1211: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1212: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1213: flush_amodes ();
1.1 root 1214: start_brace ();
1.1.1.3 root 1215: printf ("\tuae_u32 newv = dst + src + (XFLG ? 1 : 0);\n");
1.1.1.5 ! root 1216: genflags (flag_addx, table68k[opcode].size, "newv", "src", "dst");
! 1217: genflags (flag_zn, table68k[opcode].size, "newv", "", "");
1.1.1.3 root 1218: genastore ("newv", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1219: break;
1220: case i_ABCD:
1.1.1.3 root 1221: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1222: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1223: flush_amodes ();
1.1 root 1224: start_brace ();
1.1.1.3 root 1225: printf ("\tuae_u16 newv_lo = (src & 0xF) + (dst & 0xF) + (XFLG ? 1 : 0);\n");
1226: printf ("\tuae_u16 newv_hi = (src & 0xF0) + (dst & 0xF0);\n");
1227: printf ("\tuae_u16 newv;\n");
1228: printf ("\tif (newv_lo > 9) { newv_lo +=6; }\n");
1229: printf ("\tnewv = newv_hi + newv_lo;");
1230: printf ("\tCFLG = XFLG = (newv & 0x1F0) > 0x90;\n");
1231: printf ("\tif (CFLG) newv += 0x60;\n");
1.1.1.5 ! root 1232: genflags (flag_zn, table68k[opcode].size, "newv", "", "");
! 1233: genflags (flag_sv, table68k[opcode].size, "newv", "src", "dst");
1.1.1.3 root 1234: genastore ("newv", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1235: break;
1236: case i_NEG:
1.1.1.3 root 1237: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1238: flush_amodes ();
1.1 root 1239: start_brace ();
1.1.1.5 ! root 1240: genflags (flag_sub, table68k[opcode].size, "dst", "src", "0");
! 1241: genastore ("dst", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src");
1.1 root 1242: break;
1243: case i_NEGX:
1.1.1.3 root 1244: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1245: flush_amodes ();
1.1 root 1246: start_brace ();
1.1.1.3 root 1247: printf ("\tuae_u32 newv = 0 - src - (XFLG ? 1 : 0);\n");
1.1.1.5 ! root 1248: genflags (flag_subx, table68k[opcode].size, "newv", "src", "0");
! 1249: genflags (flag_zn, table68k[opcode].size, "newv", "", "");
1.1.1.3 root 1250: genastore ("newv", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src");
1.1 root 1251: break;
1.1.1.3 root 1252: case i_NBCD:
1253: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1254: flush_amodes ();
1.1 root 1255: start_brace ();
1.1.1.3 root 1256: printf ("\tuae_u16 newv_lo = - (src & 0xF) - (XFLG ? 1 : 0);\n");
1257: printf ("\tuae_u16 newv_hi = - (src & 0xF0);\n");
1258: printf ("\tuae_u16 newv;\n");
1259: printf ("\tif (newv_lo > 9) { newv_lo-=6; newv_hi-=0x10; }\n");
1260: printf ("\tnewv = newv_hi + (newv_lo & 0xF);");
1261: printf ("\tCFLG = XFLG = (newv_hi & 0x1F0) > 0x90;\n");
1262: printf ("\tif (CFLG) newv -= 0x60;\n");
1.1.1.5 ! root 1263: genflags (flag_zn, table68k[opcode].size, "newv", "", "");
1.1.1.3 root 1264: genastore ("newv", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src");
1.1 root 1265: break;
1.1.1.3 root 1266: case i_CLR:
1267: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 2, 0);
1.1.1.5 ! root 1268: flush_amodes ();
! 1269: genflags (flag_logical, table68k[opcode].size, "0", "", "");
! 1270: genastore ("0", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src");
1.1 root 1271: break;
1.1.1.3 root 1272: case i_NOT:
1273: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1274: flush_amodes ();
1.1 root 1275: start_brace ();
1.1.1.3 root 1276: printf ("\tuae_u32 dst = ~src;\n");
1.1.1.5 ! root 1277: genflags (flag_logical, table68k[opcode].size, "dst", "", "");
! 1278: genastore ("dst", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src");
1.1 root 1279: break;
1280: case i_TST:
1.1.1.3 root 1281: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1282: flush_amodes ();
! 1283: genflags (flag_logical, table68k[opcode].size, "src", "", "");
1.1 root 1284: break;
1285: case i_BTST:
1.1.1.3 root 1286: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1287: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1288: flush_amodes ();
1.1 root 1289: if (table68k[opcode].size == sz_byte)
1.1.1.3 root 1290: printf ("\tsrc &= 7;\n");
1.1 root 1291: else
1.1.1.3 root 1292: printf ("\tsrc &= 31;\n");
1293: printf ("\tZFLG = !(dst & (1 << src));\n");
1.1 root 1294: break;
1295: case i_BCHG:
1.1.1.3 root 1296: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1297: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1298: flush_amodes ();
1.1 root 1299: if (table68k[opcode].size == sz_byte)
1.1.1.3 root 1300: printf ("\tsrc &= 7;\n");
1.1 root 1301: else
1.1.1.3 root 1302: printf ("\tsrc &= 31;\n");
1303: printf ("\tZFLG = !(dst & (1 << src));\n");
1304: printf ("\tdst ^= (1 << src);\n");
1305: genastore ("dst", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1306: break;
1307: case i_BCLR:
1.1.1.3 root 1308: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1309: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1310: flush_amodes ();
1.1 root 1311: if (table68k[opcode].size == sz_byte)
1.1.1.3 root 1312: printf ("\tsrc &= 7;\n");
1.1 root 1313: else
1.1.1.3 root 1314: printf ("\tsrc &= 31;\n");
1315: printf ("\tZFLG = !(dst & (1 << src));\n");
1316: printf ("\tdst &= ~(1 << src);\n");
1317: genastore ("dst", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1318: break;
1319: case i_BSET:
1.1.1.3 root 1320: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1321: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1322: flush_amodes ();
1.1 root 1323: if (table68k[opcode].size == sz_byte)
1.1.1.3 root 1324: printf ("\tsrc &= 7;\n");
1.1 root 1325: else
1.1.1.3 root 1326: printf ("\tsrc &= 31;\n");
1327: printf ("\tZFLG = !(dst & (1 << src));\n");
1328: printf ("\tdst |= (1 << src);\n");
1329: genastore ("dst", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1330: break;
1331: case i_CMPM:
1332: case i_CMP:
1.1.1.3 root 1333: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1334: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1335: flush_amodes ();
1.1 root 1336: start_brace ();
1.1.1.5 ! root 1337: genflags (flag_cmp, table68k[opcode].size, "newv", "src", "dst");
1.1 root 1338: break;
1.1.1.3 root 1339: case i_CMPA:
1340: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1341: genamode (table68k[opcode].dmode, "dstreg", sz_long, "dst", 1, 0);
1.1.1.5 ! root 1342: flush_amodes ();
1.1 root 1343: start_brace ();
1.1.1.5 ! root 1344: genflags (flag_cmp, sz_long, "newv", "src", "dst");
1.1 root 1345: break;
1346: /* The next two are coded a little unconventional, but they are doing
1347: * weird things... */
1348: case i_MVPRM:
1.1.1.3 root 1349: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1350: flush_amodes ();
! 1351:
! 1352: printf ("\tuaecptr memp = m68k_areg(regs, dstreg) + (uae_s32)(uae_s16)%s;\n", gen_nextiword ());
1.1 root 1353: if (table68k[opcode].size == sz_word) {
1.1.1.3 root 1354: printf ("\tput_byte(memp, src >> 8); put_byte(memp + 2, src);\n");
1.1 root 1355: } else {
1.1.1.3 root 1356: printf ("\tput_byte(memp, src >> 24); put_byte(memp + 2, src >> 16);\n");
1357: printf ("\tput_byte(memp + 4, src >> 8); put_byte(memp + 6, src);\n");
1.1 root 1358: }
1359: break;
1.1.1.3 root 1360: case i_MVPMR:
1.1.1.5 ! root 1361: printf ("\tuaecptr memp = m68k_areg(regs, srcreg) + (uae_s32)(uae_s16)%s;\n", gen_nextiword ());
1.1.1.3 root 1362: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 2, 0);
1.1.1.5 ! root 1363: flush_amodes ();
1.1 root 1364: if (table68k[opcode].size == sz_word) {
1.1.1.3 root 1365: printf ("\tuae_u16 val = (get_byte(memp) << 8) + get_byte(memp + 2);\n");
1.1 root 1366: } else {
1.1.1.3 root 1367: printf ("\tuae_u32 val = (get_byte(memp) << 24) + (get_byte(memp + 2) << 16)\n");
1368: printf (" + (get_byte(memp + 4) << 8) + get_byte(memp + 6);\n");
1.1 root 1369: }
1.1.1.3 root 1370: genastore ("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1371: break;
1372: case i_MOVE:
1.1.1.3 root 1373: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1374: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 2, 0);
1.1.1.5 ! root 1375: flush_amodes ();
! 1376: genflags (flag_logical, table68k[opcode].size, "src", "", "");
1.1.1.3 root 1377: genastore ("src", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1378: break;
1379: case i_MOVEA:
1.1.1.3 root 1380: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1381: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 2, 0);
1.1.1.5 ! root 1382: flush_amodes ();
1.1 root 1383: if (table68k[opcode].size == sz_word) {
1.1.1.3 root 1384: printf ("\tuae_u32 val = (uae_s32)(uae_s16)src;\n");
1.1 root 1385: } else {
1.1.1.3 root 1386: printf ("\tuae_u32 val = src;\n");
1.1 root 1387: }
1.1.1.3 root 1388: genastore ("val", table68k[opcode].dmode, "dstreg", sz_long, "dst");
1.1 root 1389: break;
1.1.1.3 root 1390: case i_MVSR2:
1391: genamode (table68k[opcode].smode, "srcreg", sz_word, "src", 2, 0);
1.1.1.5 ! root 1392: flush_amodes ();
1.1.1.3 root 1393: printf ("\tMakeSR();\n");
1.1 root 1394: if (table68k[opcode].size == sz_byte)
1.1.1.3 root 1395: genastore ("regs.sr & 0xff", table68k[opcode].smode, "srcreg", sz_word, "src");
1.1 root 1396: else
1.1.1.3 root 1397: genastore ("regs.sr", table68k[opcode].smode, "srcreg", sz_word, "src");
1.1 root 1398: break;
1399: case i_MV2SR:
1.1.1.3 root 1400: genamode (table68k[opcode].smode, "srcreg", sz_word, "src", 1, 0);
1.1.1.5 ! root 1401: flush_amodes ();
1.1 root 1402: if (table68k[opcode].size == sz_byte)
1.1.1.3 root 1403: printf ("\tMakeSR();\n\tregs.sr &= 0xFF00;\n\tregs.sr |= src & 0xFF;\n");
1404: else {
1405: printf ("\tregs.sr = src;\n");
1.1 root 1406: }
1.1.1.3 root 1407: printf ("\tMakeFromSR();\n");
1.1 root 1408: break;
1.1.1.3 root 1409: case i_SWAP:
1410: genamode (table68k[opcode].smode, "srcreg", sz_long, "src", 1, 0);
1.1.1.5 ! root 1411: flush_amodes ();
1.1 root 1412: start_brace ();
1.1.1.3 root 1413: printf ("\tuae_u32 dst = ((src >> 16)&0xFFFF) | ((src&0xFFFF)<<16);\n");
1.1.1.5 ! root 1414: genflags (flag_logical, sz_long, "dst", "", "");
! 1415: genastore ("dst", table68k[opcode].smode, "srcreg", sz_long, "src");
1.1 root 1416: break;
1417: case i_EXG:
1.1.1.3 root 1418: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1419: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1420: flush_amodes ();
! 1421: genastore ("dst", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src");
! 1422: genastore ("src", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1423: break;
1424: case i_EXT:
1.1.1.3 root 1425: genamode (table68k[opcode].smode, "srcreg", sz_long, "src", 1, 0);
1.1.1.5 ! root 1426: flush_amodes ();
1.1 root 1427: start_brace ();
1.1.1.5 ! root 1428: switch (table68k[opcode].size) {
1.1.1.3 root 1429: case sz_byte: printf ("\tuae_u32 dst = (uae_s32)(uae_s8)src;\n"); break;
1430: case sz_word: printf ("\tuae_u16 dst = (uae_s16)(uae_s8)src;\n"); break;
1431: case sz_long: printf ("\tuae_u32 dst = (uae_s32)(uae_s16)src;\n"); break;
1.1.1.5 ! root 1432: default: abort ();
1.1 root 1433: }
1.1.1.5 ! root 1434: genflags (flag_logical,
! 1435: table68k[opcode].size == sz_word ? sz_word : sz_long, "dst", "", "");
! 1436: genastore ("dst", table68k[opcode].smode, "srcreg",
! 1437: table68k[opcode].size == sz_word ? sz_word : sz_long, "src");
1.1 root 1438: break;
1439: case i_MVMEL:
1.1.1.5 ! root 1440: genmovemel (opcode);
1.1 root 1441: break;
1442: case i_MVMLE:
1.1.1.5 ! root 1443: genmovemle (opcode);
1.1 root 1444: break;
1445: case i_TRAP:
1.1.1.3 root 1446: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1447: flush_amodes ();
! 1448: sync_m68k_pc ();
1.1.1.3 root 1449: printf ("\tException(src+32,0);\n");
1450: m68k_pc_offset = 0;
1.1 root 1451: break;
1452: case i_MVR2USP:
1.1.1.3 root 1453: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1454: flush_amodes ();
1.1.1.3 root 1455: printf ("\tregs.usp = src;\n");
1.1 root 1456: break;
1.1.1.3 root 1457: case i_MVUSP2R:
1458: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 2, 0);
1.1.1.5 ! root 1459: flush_amodes ();
1.1.1.3 root 1460: genastore ("regs.usp", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src");
1.1 root 1461: break;
1462: case i_RESET:
1.1.1.3 root 1463: printf ("\tcustomreset();\n");
1.1 root 1464: break;
1465: case i_NOP:
1466: break;
1467: case i_STOP:
1.1.1.3 root 1468: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1469: flush_amodes ();
1.1.1.3 root 1470: printf ("\tregs.sr = src;\n");
1471: printf ("\tMakeFromSR();\n");
1472: printf ("\tm68k_setstopped(1);\n");
1.1 root 1473: break;
1474: case i_RTE:
1.1.1.3 root 1475: if (cpu_level == 0) {
1476: genamode (Aipi, "7", sz_word, "sr", 1, 0);
1477: genamode (Aipi, "7", sz_long, "pc", 1, 0);
1.1.1.5 ! root 1478: flush_amodes ();
1.1.1.3 root 1479: printf ("\tregs.sr = sr; m68k_setpc_rte(pc);\n");
1480: fill_prefetch_0 ();
1481: printf ("\tMakeFromSR();\n");
1482: } else {
1.1 root 1483: int old_brace_level = n_braces;
1.1.1.3 root 1484: if (next_cpu_level < 0)
1485: next_cpu_level = 0;
1486: printf ("\tuae_u16 newsr; uae_u32 newpc; for (;;) {\n");
1487: genamode (Aipi, "7", sz_word, "sr", 1, 0);
1488: genamode (Aipi, "7", sz_long, "pc", 1, 0);
1489: genamode (Aipi, "7", sz_word, "format", 1, 0);
1.1.1.5 ! root 1490: flush_amodes ();
1.1.1.3 root 1491: printf ("\tnewsr = sr; newpc = pc;\n");
1492: printf ("\tif ((format & 0xF000) == 0x0000) { break; }\n");
1493: printf ("\telse if ((format & 0xF000) == 0x1000) { ; }\n");
1494: printf ("\telse if ((format & 0xF000) == 0x2000) { m68k_areg(regs, 7) += 4; break; }\n");
1495: printf ("\telse if ((format & 0xF000) == 0x8000) { m68k_areg(regs, 7) += 50; break; }\n");
1496: printf ("\telse if ((format & 0xF000) == 0x9000) { m68k_areg(regs, 7) += 12; break; }\n");
1497: printf ("\telse if ((format & 0xF000) == 0xa000) { m68k_areg(regs, 7) += 24; break; }\n");
1498: printf ("\telse if ((format & 0xF000) == 0xb000) { m68k_areg(regs, 7) += 84; break; }\n");
1499: printf ("\telse { Exception(14,0); goto %s; }\n", endlabelstr);
1500: printf ("\tregs.sr = newsr; MakeFromSR();\n}\n");
1.1 root 1501: pop_braces (old_brace_level);
1.1.1.3 root 1502: printf ("\tregs.sr = newsr; MakeFromSR();\n");
1503: printf ("\tm68k_setpc_rte(newpc);\n");
1504: fill_prefetch_0 ();
1.1.1.5 ! root 1505: need_endlabel = 1;
1.1 root 1506: }
1.1.1.3 root 1507: /* PC is set and prefetch filled. */
1508: m68k_pc_offset = 0;
1.1 root 1509: break;
1510: case i_RTD:
1.1.1.3 root 1511: printf ("\tcompiler_flush_jsr_stack();\n");
1512: genamode (Aipi, "7", sz_long, "pc", 1, 0);
1513: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "offs", 1, 0);
1.1.1.5 ! root 1514: flush_amodes ();
1.1.1.3 root 1515: printf ("\tm68k_areg(regs, 7) += offs;\n");
1516: printf ("\tm68k_setpc_rte(pc);\n");
1517: fill_prefetch_0 ();
1518: /* PC is set and prefetch filled. */
1519: m68k_pc_offset = 0;
1.1 root 1520: break;
1521: case i_LINK:
1.1.1.3 root 1522: genamode (Apdi, "7", sz_long, "old", 2, 0);
1523: genamode (table68k[opcode].smode, "srcreg", sz_long, "src", 1, 0);
1.1.1.5 ! root 1524: flush_amodes ();
1.1.1.3 root 1525: genastore ("src", Apdi, "7", sz_long, "old");
1526: genastore ("m68k_areg(regs, 7)", table68k[opcode].smode, "srcreg", sz_long, "src");
1527: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "offs", 1, 0);
1.1.1.5 ! root 1528: flush_amodes ();
1.1.1.3 root 1529: printf ("\tm68k_areg(regs, 7) += offs;\n");
1.1 root 1530: break;
1531: case i_UNLK:
1.1.1.3 root 1532: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1533: flush_amodes ();
1.1.1.3 root 1534: printf ("\tm68k_areg(regs, 7) = src;\n");
1535: genamode (Aipi, "7", sz_long, "old", 1, 0);
1.1.1.5 ! root 1536: flush_amodes ();
1.1.1.3 root 1537: genastore ("old", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src");
1.1 root 1538: break;
1539: case i_RTS:
1.1.1.3 root 1540: printf ("\tm68k_do_rts();\n");
1541: fill_prefetch_0 ();
1542: m68k_pc_offset = 0;
1.1 root 1543: break;
1544: case i_TRAPV:
1.1.1.3 root 1545: sync_m68k_pc ();
1546: printf ("\tif(VFLG) { Exception(7,m68k_getpc()); goto %s; }\n", endlabelstr);
1.1.1.5 ! root 1547: need_endlabel = 1;
1.1 root 1548: break;
1.1.1.2 root 1549: case i_RTR:
1.1.1.3 root 1550: printf ("\tcompiler_flush_jsr_stack();\n");
1551: printf ("\tMakeSR();\n");
1552: genamode (Aipi, "7", sz_word, "sr", 1, 0);
1553: genamode (Aipi, "7", sz_long, "pc", 1, 0);
1.1.1.5 ! root 1554: flush_amodes ();
1.1.1.3 root 1555: printf ("\tregs.sr &= 0xFF00; sr &= 0xFF;\n");
1556: printf ("\tregs.sr |= sr; m68k_setpc(pc);\n");
1557: fill_prefetch_0 ();
1558: printf ("\tMakeFromSR();\n");
1559: m68k_pc_offset = 0;
1.1 root 1560: break;
1561: case i_JSR:
1.1.1.3 root 1562: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 0, 0);
1.1.1.5 ! root 1563: flush_amodes ();
1.1.1.3 root 1564: printf ("\tm68k_do_jsr(m68k_getpc() + %d, srca);\n", m68k_pc_offset);
1565: fill_prefetch_0 ();
1566: m68k_pc_offset = 0;
1567: break;
1568: case i_JMP:
1569: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 0, 0);
1.1.1.5 ! root 1570: flush_amodes ();
1.1.1.3 root 1571: printf ("\tm68k_setpc(srca);\n");
1572: fill_prefetch_0 ();
1573: m68k_pc_offset = 0;
1.1 root 1574: break;
1575: case i_BSR:
1.1.1.3 root 1576: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1577: flush_amodes ();
1.1.1.3 root 1578: printf ("\tuae_s32 s = (uae_s32)src + 2;\n");
1579: if (using_exception_3) {
1580: printf ("\tif (src & 1) {\n");
1581: printf ("\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
1582: printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + s;\n");
1583: printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
1584: printf ("\t}\n");
1.1.1.5 ! root 1585: need_endlabel = 1;
1.1.1.3 root 1586: }
1587: printf ("\tm68k_do_bsr(m68k_getpc() + %d, s);\n", m68k_pc_offset);
1588: fill_prefetch_0 ();
1589: m68k_pc_offset = 0;
1.1 root 1590: break;
1591: case i_Bcc:
1.1.1.3 root 1592: if (table68k[opcode].size == sz_long) {
1593: if (cpu_level < 2) {
1594: printf ("\tm68k_incpc(2);\n");
1595: printf ("\tif (!cctrue(%d)) goto %s;\n", table68k[opcode].cc, endlabelstr);
1596: printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
1597: printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + 1;\n");
1598: printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
1.1.1.5 ! root 1599: need_endlabel = 1;
1.1.1.3 root 1600: } else {
1601: if (next_cpu_level < 1)
1602: next_cpu_level = 1;
1603: }
1604: }
1605: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 1606: flush_amodes ();
1.1.1.3 root 1607: printf ("\tif (!cctrue(%d)) goto didnt_jump;\n", table68k[opcode].cc);
1608: if (using_exception_3) {
1609: printf ("\tif (src & 1) {\n");
1610: printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
1611: printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + 2 + (uae_s32)src;\n");
1612: printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
1613: printf ("\t}\n");
1.1.1.5 ! root 1614: need_endlabel = 1;
1.1.1.3 root 1615: }
1.1 root 1616: #ifdef USE_COMPILER
1.1.1.3 root 1617: printf ("\tm68k_setpc_bcc(m68k_getpc() + 2 + (uae_s32)src);\n");
1.1 root 1618: #else
1.1.1.3 root 1619: printf ("\tm68k_incpc ((uae_s32)src + 2);\n");
1.1 root 1620: #endif
1.1.1.3 root 1621: fill_prefetch_0 ();
1622: printf ("\tgoto %s;\n", endlabelstr);
1623: printf ("didnt_jump:;\n");
1.1.1.5 ! root 1624: need_endlabel = 1;
1.1 root 1625: break;
1626: case i_LEA:
1.1.1.3 root 1627: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 0, 0);
1628: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 2, 0);
1.1.1.5 ! root 1629: flush_amodes ();
1.1.1.3 root 1630: genastore ("srca", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 1631: break;
1632: case i_PEA:
1.1.1.3 root 1633: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 0, 0);
1634: genamode (Apdi, "7", sz_long, "dst", 2, 0);
1.1.1.5 ! root 1635: flush_amodes ();
1.1.1.3 root 1636: genastore ("srca", Apdi, "7", sz_long, "dst");
1.1 root 1637: break;
1638: case i_DBcc:
1.1.1.3 root 1639: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1640: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "offs", 1, 0);
1.1.1.5 ! root 1641: flush_amodes ();
1.1.1.3 root 1642:
1643: printf ("\tif (!cctrue(%d)) {\n", table68k[opcode].cc);
1644: genastore ("(src-1)", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src");
1645:
1646: printf ("\t\tif (src) {\n");
1647: if (using_exception_3) {
1648: printf ("\t\t\tif (offs & 1) {\n");
1649: printf ("\t\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
1650: printf ("\t\t\tlast_fault_for_exception_3 = m68k_getpc() + 2 + (uae_s32)offs + 2;\n");
1651: printf ("\t\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
1652: printf ("\t\t}\n");
1.1.1.5 ! root 1653: need_endlabel = 1;
1.1.1.3 root 1654: }
1.1 root 1655: #ifdef USE_COMPILER
1.1.1.3 root 1656: printf ("\t\t\tm68k_setpc_bcc(m68k_getpc() + (uae_s32)offs + 2);\n");
1.1 root 1657: #else
1.1.1.3 root 1658: printf ("\t\t\tm68k_incpc((uae_s32)offs + 2);\n");
1.1 root 1659: #endif
1.1.1.3 root 1660: fill_prefetch_0 ();
1661: printf ("\t\tgoto %s;\n", endlabelstr);
1662: printf ("\t\t}\n");
1663: printf ("\t}\n");
1.1.1.5 ! root 1664: need_endlabel = 1;
1.1 root 1665: break;
1.1.1.3 root 1666: case i_Scc:
1667: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 2, 0);
1.1.1.5 ! root 1668: flush_amodes ();
1.1 root 1669: start_brace ();
1.1.1.3 root 1670: printf ("\tint val = cctrue(%d) ? 0xff : 0;\n", table68k[opcode].cc);
1.1.1.5 ! root 1671: genastore ("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src");
1.1 root 1672: break;
1673: case i_DIVU:
1.1.1.3 root 1674: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1675: genamode (table68k[opcode].smode, "srcreg", sz_word, "src", 1, 0);
1676: genamode (table68k[opcode].dmode, "dstreg", sz_long, "dst", 1, 0);
1.1.1.5 ! root 1677: flush_amodes ();
1.1.1.3 root 1678: printf ("\tif(src == 0) { Exception(5,oldpc); goto %s; } else {\n", endlabelstr);
1679: printf ("\tuae_u32 newv = (uae_u32)dst / (uae_u32)(uae_u16)src;\n");
1680: printf ("\tuae_u32 rem = (uae_u32)dst %% (uae_u32)(uae_u16)src;\n");
1.1 root 1681: /* The N flag appears to be set each time there is an overflow.
1682: * Weird. */
1.1.1.3 root 1683: printf ("\tif (newv > 0xffff) { VFLG = NFLG = 1; CFLG = 0; } else\n\t{\n");
1.1.1.5 ! root 1684: genflags (flag_logical, sz_word, "newv", "", "");
1.1.1.3 root 1685: printf ("\tnewv = (newv & 0xffff) | ((uae_u32)rem << 16);\n");
1.1.1.5 ! root 1686: genastore ("newv", table68k[opcode].dmode, "dstreg", sz_long, "dst");
1.1.1.3 root 1687: printf ("\t}\n");
1688: printf ("\t}\n");
1.1.1.5 ! root 1689: insn_n_cycles += 68;
! 1690: need_endlabel = 1;
1.1.1.3 root 1691: break;
1692: case i_DIVS:
1693: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1694: genamode (table68k[opcode].smode, "srcreg", sz_word, "src", 1, 0);
1695: genamode (table68k[opcode].dmode, "dstreg", sz_long, "dst", 1, 0);
1.1.1.5 ! root 1696: flush_amodes ();
1.1.1.3 root 1697: printf ("\tif(src == 0) { Exception(5,oldpc); goto %s; } else {\n", endlabelstr);
1698: printf ("\tuae_s32 newv = (uae_s32)dst / (uae_s32)(uae_s16)src;\n");
1699: printf ("\tuae_u16 rem = (uae_s32)dst %% (uae_s32)(uae_s16)src;\n");
1700: printf ("\tif ((newv & 0xffff8000) != 0 && (newv & 0xffff8000) != 0xffff8000) { VFLG = NFLG = 1; CFLG = 0; } else\n\t{\n");
1701: printf ("\tif (((uae_s16)rem < 0) != ((uae_s32)dst < 0)) rem = -rem;\n");
1.1.1.5 ! root 1702: genflags (flag_logical, sz_word, "newv", "", "");
1.1.1.3 root 1703: printf ("\tnewv = (newv & 0xffff) | ((uae_u32)rem << 16);\n");
1.1.1.5 ! root 1704: genastore ("newv", table68k[opcode].dmode, "dstreg", sz_long, "dst");
1.1.1.3 root 1705: printf ("\t}\n");
1706: printf ("\t}\n");
1.1.1.5 ! root 1707: insn_n_cycles += 72;
! 1708: need_endlabel = 1;
1.1.1.3 root 1709: break;
1710: case i_MULU:
1711: genamode (table68k[opcode].smode, "srcreg", sz_word, "src", 1, 0);
1712: genamode (table68k[opcode].dmode, "dstreg", sz_word, "dst", 1, 0);
1.1.1.5 ! root 1713: flush_amodes ();
1.1 root 1714: start_brace ();
1.1.1.3 root 1715: printf ("\tuae_u32 newv = (uae_u32)(uae_u16)dst * (uae_u32)(uae_u16)src;\n");
1.1.1.5 ! root 1716: genflags (flag_logical, sz_long, "newv", "", "");
! 1717: genastore ("newv", table68k[opcode].dmode, "dstreg", sz_long, "dst");
! 1718: insn_n_cycles += 32;
1.1 root 1719: break;
1720: case i_MULS:
1.1.1.3 root 1721: genamode (table68k[opcode].smode, "srcreg", sz_word, "src", 1, 0);
1722: genamode (table68k[opcode].dmode, "dstreg", sz_word, "dst", 1, 0);
1.1.1.5 ! root 1723: flush_amodes ();
1.1 root 1724: start_brace ();
1.1.1.3 root 1725: printf ("\tuae_u32 newv = (uae_s32)(uae_s16)dst * (uae_s32)(uae_s16)src;\n");
1.1.1.5 ! root 1726: genflags (flag_logical, sz_long, "newv", "", "");
! 1727: genastore ("newv", table68k[opcode].dmode, "dstreg", sz_long, "dst");
! 1728: insn_n_cycles += 32;
1.1 root 1729: break;
1730: case i_CHK:
1.1.1.3 root 1731: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1732: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1733: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 1734: flush_amodes ();
1.1.1.3 root 1735: printf ("\tif ((uae_s32)dst < 0) { NFLG=1; Exception(6,oldpc); goto %s; }\n", endlabelstr);
1736: printf ("\telse if (dst > src) { NFLG=0; Exception(6,oldpc); goto %s; }\n", endlabelstr);
1.1.1.5 ! root 1737: need_endlabel = 1;
1.1 root 1738: break;
1.1.1.3 root 1739:
1.1 root 1740: case i_CHK2:
1.1.1.3 root 1741: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1 root 1742: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0);
1.1.1.3 root 1743: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 2, 0);
1.1.1.5 ! root 1744: flush_amodes ();
1.1.1.3 root 1745: printf ("\t{uae_s32 upper,lower,reg = regs.regs[(extra >> 12) & 15];\n");
1.1 root 1746: switch (table68k[opcode].size) {
1.1.1.3 root 1747: case sz_byte:
1748: printf ("\tlower=(uae_s32)(uae_s8)get_byte(dsta); upper = (uae_s32)(uae_s8)get_byte(dsta+1);\n");
1749: printf ("\tif ((extra & 0x8000) == 0) reg = (uae_s32)(uae_s8)reg;\n");
1750: break;
1751: case sz_word:
1752: printf ("\tlower=(uae_s32)(uae_s16)get_word(dsta); upper = (uae_s32)(uae_s16)get_word(dsta+2);\n");
1753: printf ("\tif ((extra & 0x8000) == 0) reg = (uae_s32)(uae_s16)reg;\n");
1754: break;
1755: case sz_long:
1756: printf ("\tlower=get_long(dsta); upper = get_long(dsta+4);\n");
1757: break;
1758: default:
1.1.1.5 ! root 1759: abort ();
1.1.1.3 root 1760: }
1761: printf ("\tZFLG=upper == reg || lower == reg;\n");
1762: printf ("\tCFLG=lower <= upper ? reg < lower || reg > upper : reg > upper || reg < lower;\n");
1763: printf ("\tif ((extra & 0x800) && CFLG) { Exception(6,oldpc); goto %s; }\n}\n", endlabelstr);
1.1.1.5 ! root 1764: need_endlabel = 1;
1.1.1.3 root 1765: break;
1766:
1767: case i_ASR:
1768: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0);
1769: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 1770: flush_amodes ();
1.1.1.3 root 1771: start_brace ();
1.1.1.5 ! root 1772: switch (table68k[opcode].size) {
1.1.1.3 root 1773: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1774: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1775: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 1776: default: abort ();
1.1 root 1777: }
1.1.1.5 ! root 1778: switch (table68k[opcode].size) {
1.1.1.3 root 1779: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
1780: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
1781: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 1782: default: abort ();
1.1.1.3 root 1783: }
1784: printf ("\tuae_u32 sign = cmask & val;\n");
1785: printf ("\tcnt &= 63;\n");
1786: printf ("\tVFLG = 0;\n");
1787: printf ("\tif (!cnt) { CFLG = 0; } else {\n");
1.1.1.5 ! root 1788: printf ("\tif (cnt >= %d) {\n", bit_size (table68k[opcode].size));
! 1789: printf ("\t\tval = sign ? %s : 0;\n", bit_mask (table68k[opcode].size));
1.1.1.3 root 1790: printf ("\t\tCFLG=XFLG= sign ? 1 : 0;\n");
1791: printf ("\t} else {\n");
1792: printf ("\t\tCFLG=XFLG=(val >> (cnt-1)) & 1;\n");
1793: printf ("\t\tval >>= cnt;\n");
1794: printf ("\t\tif (sign) val |= %s << (%d - cnt);\n",
1.1.1.5 ! root 1795: bit_mask (table68k[opcode].size),
! 1796: bit_size (table68k[opcode].size));
1.1.1.3 root 1797: printf ("\t}}\n");
1798: printf ("\tNFLG = sign != 0;\n");
1799: printf ("\tZFLG = val == 0;\n");
1800: genastore ("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data");
1.1 root 1801: break;
1802: case i_ASL:
1.1.1.3 root 1803: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0);
1804: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 1805: flush_amodes ();
1.1 root 1806: start_brace ();
1.1.1.5 ! root 1807: switch (table68k[opcode].size) {
1.1.1.3 root 1808: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1809: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1810: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 1811: default: abort ();
1.1 root 1812: }
1.1.1.5 ! root 1813: switch (table68k[opcode].size) {
1.1.1.3 root 1814: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
1815: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
1816: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 1817: default: abort ();
1.1 root 1818: }
1.1.1.3 root 1819: printf ("\tcnt &= 63;\n");
1820: printf ("\tVFLG = 0;\n");
1821: printf ("\tif (!cnt) { CFLG = 0; } else {\n");
1.1.1.5 ! root 1822: printf ("\tif (cnt >= %d) {\n", bit_size (table68k[opcode].size));
1.1.1.3 root 1823: printf ("\t\tVFLG = val != 0;\n");
1824: printf ("\t\tCFLG=XFLG = cnt == %d ? val & 1 : 0;\n",
1.1.1.5 ! root 1825: bit_size (table68k[opcode].size));
1.1.1.3 root 1826: printf ("\t\tval = 0;\n");
1827: printf ("\t} else {\n");
1828: printf ("\t\tuae_u32 mask = (%s << (%d - cnt)) & %s;\n",
1.1.1.5 ! root 1829: bit_mask (table68k[opcode].size),
! 1830: bit_size (table68k[opcode].size) - 1,
! 1831: bit_mask (table68k[opcode].size));
1.1.1.3 root 1832: printf ("\t\tCFLG=XFLG=(val << (cnt-1)) & cmask ? 1 : 0;\n");
1833: printf ("\t\tVFLG = (val & mask) != mask && (val & mask) != 0;\n");
1834: printf ("\t\tval <<= cnt;\n");
1835: printf ("\t}}\n");
1836: printf ("\tNFLG = (val&cmask) != 0;\n");
1837: printf ("\tZFLG = val == 0;\n");
1838: genastore ("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data");
1.1 root 1839: break;
1840: case i_LSR:
1.1.1.3 root 1841: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0);
1842: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 1843: flush_amodes ();
1.1 root 1844: start_brace ();
1.1.1.5 ! root 1845: switch (table68k[opcode].size) {
1.1.1.3 root 1846: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1847: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1848: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 1849: default: abort ();
1.1 root 1850: }
1.1.1.5 ! root 1851: switch (table68k[opcode].size) {
1.1.1.3 root 1852: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
1853: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
1854: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 1855: default: abort ();
1.1 root 1856: }
1.1.1.3 root 1857: printf ("\tcnt &= 63;\n");
1858: printf ("\tif (!cnt) { CFLG = 0; } else {\n");
1.1.1.5 ! root 1859: printf ("\tif (cnt >= %d) {\n", bit_size (table68k[opcode].size));
1.1.1.3 root 1860: printf ("\t\tCFLG=XFLG = cnt == %d ? (val & cmask ? 1 : 0) : 0;\n",
1.1.1.5 ! root 1861: bit_size (table68k[opcode].size));
1.1.1.3 root 1862: printf ("\t\tval = 0;\n");
1863: printf ("\t} else {\n");
1864: printf ("\t\tCFLG=XFLG=(val >> (cnt-1)) & 1;\n");
1865: printf ("\t\tval >>= cnt;\n");
1866: printf ("\t}}\n");
1867: printf ("\tNFLG = (val & cmask) != 0; ZFLG = val == 0; VFLG = 0;\n");
1868: genastore ("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data");
1.1 root 1869: break;
1870: case i_LSL:
1.1.1.3 root 1871: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0);
1872: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 1873: flush_amodes ();
1.1 root 1874: start_brace ();
1.1.1.5 ! root 1875: switch (table68k[opcode].size) {
1.1.1.3 root 1876: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1877: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1878: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 1879: default: abort ();
1.1 root 1880: }
1.1.1.5 ! root 1881: switch (table68k[opcode].size) {
1.1.1.3 root 1882: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
1883: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
1884: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 1885: default: abort ();
1.1 root 1886: }
1.1.1.3 root 1887: printf ("\tcnt &= 63;\n");
1888: printf ("\tif (!cnt) { CFLG = 0; } else {\n");
1.1.1.5 ! root 1889: printf ("\tif (cnt >= %d) {\n", bit_size (table68k[opcode].size));
1.1.1.3 root 1890: printf ("\t\tCFLG=XFLG = cnt == %d ? val & 1 : 0;\n",
1.1.1.5 ! root 1891: bit_size (table68k[opcode].size));
1.1.1.3 root 1892: printf ("\t\tval = 0;\n");
1893: printf ("\t} else {\n");
1894: printf ("\t\tCFLG=XFLG=(val << (cnt-1)) & cmask ? 1 : 0;\n");
1895: printf ("\t\tval <<= cnt;\n");
1896: printf ("\t}}\n");
1897: printf ("\tNFLG = (val & cmask) != 0; ZFLG = val == 0; VFLG = 0;\n");
1898: genastore ("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data");
1.1 root 1899: break;
1900: case i_ROL:
1.1.1.3 root 1901: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0);
1902: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 1903: flush_amodes ();
1.1 root 1904: start_brace ();
1.1.1.5 ! root 1905: switch (table68k[opcode].size) {
1.1.1.3 root 1906: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1907: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1908: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 1909: default: abort ();
1.1 root 1910: }
1.1.1.5 ! root 1911: switch (table68k[opcode].size) {
1.1.1.3 root 1912: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
1913: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
1914: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 1915: default: abort ();
1.1 root 1916: }
1.1.1.3 root 1917: printf ("\tcnt &= 63;\n");
1918: printf ("\tif (!cnt) { CFLG = 0; } else {\n");
1919: printf ("\tuae_u32 carry;\n");
1920: printf ("\tfor(;cnt;--cnt){\n");
1921: printf ("\tcarry=val&cmask; val <<= 1;\n");
1922: printf ("\tif(carry) val |= 1;\n");
1923: printf ("\t}\n");
1924: printf ("\tCFLG = carry!=0;\n}\n");
1925: printf ("\tNFLG = (val & cmask) != 0; ZFLG = val == 0; VFLG = 0;\n");
1926: genastore ("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data");
1.1 root 1927: break;
1928: case i_ROR:
1.1.1.3 root 1929: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0);
1930: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 1931: flush_amodes ();
1.1 root 1932: start_brace ();
1.1.1.5 ! root 1933: switch (table68k[opcode].size) {
1.1.1.3 root 1934: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1935: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1936: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 1937: default: abort ();
1.1 root 1938: }
1.1.1.5 ! root 1939: switch (table68k[opcode].size) {
1.1.1.3 root 1940: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
1941: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
1942: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 1943: default: abort ();
1.1 root 1944: }
1.1.1.3 root 1945: printf ("\tcnt &= 63;\n");
1946: printf ("\tif (!cnt) { CFLG = 0; } else {");
1947: printf ("\tuae_u32 carry;\n");
1948: printf ("\tfor(;cnt;--cnt){\n");
1949: printf ("\tcarry=val&1; val = val >> 1;\n");
1950: printf ("\tif(carry) val |= cmask;\n");
1951: printf ("\t}\n");
1952: printf ("\tCFLG = carry;\n}\n");
1953: printf ("\tNFLG = (val & cmask) != 0; ZFLG = val == 0; VFLG = 0;\n");
1954: genastore ("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data");
1.1 root 1955: break;
1.1.1.3 root 1956: case i_ROXL:
1957: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0);
1958: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 1959: flush_amodes ();
1.1 root 1960: start_brace ();
1.1.1.5 ! root 1961: switch (table68k[opcode].size) {
1.1.1.3 root 1962: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1963: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1964: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 1965: default: abort ();
1.1 root 1966: }
1.1.1.5 ! root 1967: switch (table68k[opcode].size) {
1.1.1.3 root 1968: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
1969: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
1970: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 1971: default: abort ();
1.1 root 1972: }
1.1.1.3 root 1973: printf ("\tuae_u32 carry;\n");
1974: printf ("\tcnt &= 63;\n");
1975: printf ("\tfor(;cnt;--cnt){\n");
1976: printf ("\tcarry=val&cmask; val <<= 1;\n");
1977: printf ("\tif(XFLG) val |= 1;\n");
1978: printf ("\tXFLG = carry != 0;\n");
1979: printf ("\t}\n");
1980: printf ("\tCFLG = XFLG;\n");
1981: printf ("\tNFLG = (val & cmask) != 0; ZFLG = val == 0; VFLG = 0;\n");
1982: genastore ("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data");
1.1 root 1983: break;
1984: case i_ROXR:
1.1.1.3 root 1985: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0);
1986: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 1987: flush_amodes ();
1.1 root 1988: start_brace ();
1.1.1.5 ! root 1989: switch (table68k[opcode].size) {
1.1.1.3 root 1990: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1991: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1992: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 1993: default: abort ();
1.1 root 1994: }
1.1.1.5 ! root 1995: switch (table68k[opcode].size) {
1.1.1.3 root 1996: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
1997: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
1998: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 1999: default: abort ();
1.1 root 2000: }
1.1.1.3 root 2001: printf ("\tuae_u32 carry;\n");
2002: printf ("\tcnt &= 63;\n");
2003: printf ("\tfor(;cnt;--cnt){\n");
2004: printf ("\tcarry=val&1; val >>= 1;\n");
2005: printf ("\tif(XFLG) val |= cmask;\n");
2006: printf ("\tXFLG = carry;\n");
2007: printf ("\t}\n");
2008: printf ("\tCFLG = XFLG;\n");
2009: printf ("\tNFLG = (val & cmask) != 0; ZFLG = val == 0; VFLG = 0;\n");
2010: genastore ("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data");
1.1 root 2011: break;
2012: case i_ASRW:
1.1.1.3 root 2013: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 2014: flush_amodes ();
1.1.1.3 root 2015: printf ("\tVFLG = 0;\n");
1.1 root 2016: start_brace ();
1.1.1.5 ! root 2017: switch (table68k[opcode].size) {
1.1.1.3 root 2018: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2019: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2020: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 2021: default: abort ();
1.1 root 2022: }
1.1.1.5 ! root 2023: switch (table68k[opcode].size) {
1.1.1.3 root 2024: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
2025: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
2026: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 2027: default: abort ();
1.1 root 2028: }
1.1.1.3 root 2029: printf ("\tuae_u32 sign = cmask & val;\n");
2030: printf ("\tCFLG=XFLG=val&1; val = (val >> 1) | sign;\n");
2031: printf ("\tNFLG = sign != 0;\n");
2032: printf ("\tZFLG = val == 0;\n");
2033: genastore ("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data");
1.1 root 2034: break;
2035: case i_ASLW:
1.1.1.3 root 2036: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 2037: flush_amodes ();
1.1.1.3 root 2038: printf ("\tVFLG = 0;\n");
1.1 root 2039: start_brace ();
1.1.1.5 ! root 2040: switch (table68k[opcode].size) {
1.1.1.3 root 2041: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2042: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2043: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 2044: default: abort ();
1.1 root 2045: }
1.1.1.5 ! root 2046: switch (table68k[opcode].size) {
1.1.1.3 root 2047: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
2048: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
2049: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 2050: default: abort ();
1.1 root 2051: }
1.1.1.3 root 2052: printf ("\tuae_u32 sign = cmask & val;\n");
2053: printf ("\tCFLG=XFLG=(val&cmask)!=0; val <<= 1;\n");
2054: printf ("\tif ((val&cmask)!=sign) VFLG=1;\n");
2055: printf ("\tNFLG = (val&cmask) != 0;\n");
2056: printf ("\tZFLG = val == 0;\n");
2057: genastore ("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data");
1.1 root 2058: break;
2059: case i_LSRW:
1.1.1.3 root 2060: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 2061: flush_amodes ();
1.1 root 2062: start_brace ();
1.1.1.5 ! root 2063: switch (table68k[opcode].size) {
1.1.1.3 root 2064: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2065: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2066: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 2067: default: abort ();
1.1 root 2068: }
1.1.1.3 root 2069: printf ("\tuae_u32 carry = val&1;\n");
2070: printf ("\tval >>= 1;\n");
1.1.1.5 ! root 2071: genflags (flag_logical, table68k[opcode].size, "val", "", "");
1.1.1.3 root 2072: printf ("CFLG = XFLG = carry!=0;\n");
2073: genastore ("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data");
1.1 root 2074: break;
2075: case i_LSLW:
1.1.1.3 root 2076: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 2077: flush_amodes ();
1.1 root 2078: start_brace ();
1.1.1.5 ! root 2079: switch (table68k[opcode].size) {
1.1.1.3 root 2080: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2081: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2082: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 2083: default: abort ();
1.1 root 2084: }
1.1.1.5 ! root 2085: switch (table68k[opcode].size) {
1.1.1.3 root 2086: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
2087: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
2088: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 2089: default: abort ();
1.1 root 2090: }
1.1.1.3 root 2091: printf ("\tuae_u32 carry = val&cmask;\n");
2092: printf ("\tval <<= 1;\n");
1.1.1.5 ! root 2093: genflags (flag_logical, table68k[opcode].size, "val", "", "");
1.1.1.3 root 2094: printf ("CFLG = XFLG = carry!=0;\n");
2095: genastore ("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data");
1.1 root 2096: break;
2097: case i_ROLW:
1.1.1.3 root 2098: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 2099: flush_amodes ();
1.1 root 2100: start_brace ();
1.1.1.5 ! root 2101: switch (table68k[opcode].size) {
1.1.1.3 root 2102: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2103: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2104: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 2105: default: abort ();
1.1 root 2106: }
1.1.1.5 ! root 2107: switch (table68k[opcode].size) {
1.1.1.3 root 2108: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
2109: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
2110: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 2111: default: abort ();
1.1 root 2112: }
1.1.1.3 root 2113: printf ("\tuae_u32 carry = val&cmask;\n");
2114: printf ("\tval <<= 1;\n");
2115: printf ("\tif(carry) val |= 1;\n");
1.1.1.5 ! root 2116: genflags (flag_logical, table68k[opcode].size, "val", "", "");
1.1.1.3 root 2117: printf ("CFLG = carry!=0;\n");
2118: genastore ("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data");
1.1 root 2119: break;
2120: case i_RORW:
1.1.1.3 root 2121: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 2122: flush_amodes ();
1.1 root 2123: start_brace ();
1.1.1.5 ! root 2124: switch (table68k[opcode].size) {
1.1.1.3 root 2125: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2126: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2127: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 2128: default: abort ();
1.1 root 2129: }
1.1.1.3 root 2130: printf ("\tuae_u32 carry = val&1;\n");
1.1.1.5 ! root 2131: switch (table68k[opcode].size) {
1.1.1.3 root 2132: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
2133: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
2134: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 2135: default: abort ();
1.1 root 2136: }
1.1.1.3 root 2137: printf ("\tval >>= 1;\n");
2138: printf ("\tif(carry) val |= cmask;\n");
1.1.1.5 ! root 2139: genflags (flag_logical, table68k[opcode].size, "val", "", "");
1.1.1.3 root 2140: printf ("CFLG = carry!=0;\n");
2141: genastore ("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data");
1.1 root 2142: break;
2143: case i_ROXLW:
1.1.1.3 root 2144: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 2145: flush_amodes ();
1.1 root 2146: start_brace ();
1.1.1.5 ! root 2147: switch (table68k[opcode].size) {
1.1.1.3 root 2148: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2149: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2150: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 2151: default: abort ();
1.1 root 2152: }
1.1.1.5 ! root 2153: switch (table68k[opcode].size) {
1.1.1.3 root 2154: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
2155: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
2156: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 2157: default: abort ();
1.1 root 2158: }
1.1.1.3 root 2159: printf ("\tuae_u32 carry = val&cmask;\n");
2160: printf ("\tval <<= 1;\n");
2161: printf ("\tif(XFLG) val |= 1;\n");
2162: printf ("\tXFLG = carry != 0;\n");
1.1.1.5 ! root 2163: genflags (flag_logical, table68k[opcode].size, "val", "", "");
1.1.1.3 root 2164: printf ("XFLG = CFLG = carry!=0;\n");
2165: genastore ("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data");
1.1 root 2166: break;
2167: case i_ROXRW:
1.1.1.3 root 2168: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0);
1.1.1.5 ! root 2169: flush_amodes ();
1.1 root 2170: start_brace ();
1.1.1.5 ! root 2171: switch (table68k[opcode].size) {
1.1.1.3 root 2172: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2173: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2174: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 ! root 2175: default: abort ();
1.1 root 2176: }
1.1.1.3 root 2177: printf ("\tuae_u32 carry = val&1;\n");
1.1.1.5 ! root 2178: switch (table68k[opcode].size) {
1.1.1.3 root 2179: case sz_byte: printf ("\tuae_u32 cmask = 0x80;\n"); break;
2180: case sz_word: printf ("\tuae_u32 cmask = 0x8000;\n"); break;
2181: case sz_long: printf ("\tuae_u32 cmask = 0x80000000;\n"); break;
1.1.1.5 ! root 2182: default: abort ();
1.1 root 2183: }
1.1.1.3 root 2184: printf ("\tval >>= 1;\n");
2185: printf ("\tif(XFLG) val |= cmask;\n");
2186: printf ("\tXFLG = carry != 0;\n");
1.1.1.5 ! root 2187: genflags (flag_logical, table68k[opcode].size, "val", "", "");
1.1.1.3 root 2188: printf ("XFLG = CFLG = carry!=0;\n");
2189: genastore ("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data");
1.1 root 2190: break;
2191: case i_MOVEC2:
2192: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 2193: flush_amodes ();
! 2194: start_brace ();
1.1.1.3 root 2195: printf ("\tint regno = (src >> 12) & 15;\n");
2196: printf ("\tuae_u32 *regp = regs.regs + regno;\n");
2197: printf ("\tm68k_movec2(src & 0xFFF, regp);\n");
1.1 root 2198: break;
2199: case i_MOVE2C:
2200: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 2201: flush_amodes ();
! 2202: start_brace ();
1.1.1.3 root 2203: printf ("\tint regno = (src >> 12) & 15;\n");
2204: printf ("\tuae_u32 *regp = regs.regs + regno;\n");
2205: printf ("\tm68k_move2c(src & 0xFFF, regp);\n");
1.1 root 2206: break;
2207: case i_CAS:
2208: {
2209: int old_brace_level;
2210: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
2211: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 2212: flush_amodes ();
! 2213: start_brace ();
1.1.1.3 root 2214: printf ("\tint ru = (src >> 6) & 7;\n");
2215: printf ("\tint rc = src & 7;\n");
1.1.1.5 ! root 2216: genflags (flag_cmp, table68k[opcode].size, "newv", "m68k_dreg(regs, rc)", "dst");
1.1.1.3 root 2217: printf ("\tif (ZFLG)");
1.1 root 2218: old_brace_level = n_braces;
2219: start_brace ();
1.1.1.5 ! root 2220: genastore ("(m68k_dreg(regs, ru))", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 2221: pop_braces (old_brace_level);
1.1.1.3 root 2222: printf ("else");
1.1 root 2223: start_brace ();
1.1.1.3 root 2224: printf ("m68k_dreg(regs, rc) = dst;\n");
1.1 root 2225: pop_braces (old_brace_level);
2226: }
2227: break;
2228: case i_CAS2:
2229: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0);
1.1.1.5 ! root 2230: flush_amodes ();
1.1.1.3 root 2231: printf ("\tuae_u32 rn1 = regs.regs[(extra >> 28) & 7];\n");
2232: printf ("\tuae_u32 rn2 = regs.regs[(extra >> 12) & 7];\n");
1.1 root 2233: if (table68k[opcode].size == sz_word) {
1.1.1.5 ! root 2234: int old_brace_level = n_braces;
! 2235: printf ("\tuae_u16 dst1 = get_word(rn1), dst2 = get_word(rn2);\n");
! 2236: genflags (flag_cmp, table68k[opcode].size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1");
! 2237: printf ("\tif (ZFLG) {\n");
! 2238: genflags (flag_cmp, table68k[opcode].size, "newv", "m68k_dreg(regs, extra & 7)", "dst2");
! 2239: printf ("\tif (ZFLG) {\n");
! 2240: printf ("\tput_word(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n");
! 2241: printf ("\tput_word(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n");
! 2242: printf ("\t}}\n");
! 2243: pop_braces (old_brace_level);
! 2244: printf ("\tif (!ZFLG) {\n");
! 2245: printf ("\tm68k_dreg(regs, (extra >> 22) & 7) = (m68k_dreg(regs, (extra >> 22) & 7) & ~0xffff) | (dst1 & 0xffff);\n");
! 2246: printf ("\tm68k_dreg(regs, (extra >> 6) & 7) = (m68k_dreg(regs, (extra >> 6) & 7) & ~0xffff) | (dst2 & 0xffff);\n");
! 2247: printf ("\t}\n");
1.1 root 2248: } else {
1.1.1.5 ! root 2249: int old_brace_level = n_braces;
! 2250: printf ("\tuae_u32 dst1 = get_long(rn1), dst2 = get_long(rn2);\n");
! 2251: genflags (flag_cmp, table68k[opcode].size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1");
! 2252: printf ("\tif (ZFLG) {\n");
! 2253: genflags (flag_cmp, table68k[opcode].size, "newv", "m68k_dreg(regs, extra & 7)", "dst2");
! 2254: printf ("\tif (ZFLG) {\n");
! 2255: printf ("\tput_long(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n");
! 2256: printf ("\tput_long(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n");
! 2257: printf ("\t}}\n");
! 2258: pop_braces (old_brace_level);
! 2259: printf ("\tif (!ZFLG) {\n");
! 2260: printf ("\tm68k_dreg(regs, (extra >> 22) & 7) = dst1;\n");
! 2261: printf ("\tm68k_dreg(regs, (extra >> 6) & 7) = dst2;\n");
! 2262: printf ("\t}\n");
1.1 root 2263: }
2264: break;
1.1.1.5 ! root 2265: case i_MOVES: /* ignore DFC and SFC because we have no MMU */
1.1 root 2266: {
2267: int old_brace_level;
2268: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0);
1.1.1.5 ! root 2269: flush_amodes ();
1.1.1.3 root 2270: printf ("\tif (extra & 0x800)\n");
1.1 root 2271: old_brace_level = n_braces;
2272: start_brace ();
1.1.1.3 root 2273: printf ("\tuae_u32 src = regs.regs[(extra >> 12) & 15];\n");
2274: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 2, 0);
1.1.1.5 ! root 2275: flush_amodes ();
1.1.1.3 root 2276: genastore ("src", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst");
1.1 root 2277: pop_braces (old_brace_level);
1.1.1.3 root 2278: printf ("else");
1.1 root 2279: start_brace ();
1.1.1.3 root 2280: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 2281: flush_amodes ();
1.1.1.3 root 2282: printf ("\tif (extra & 0x8000) {\n");
1.1.1.5 ! root 2283: switch (table68k[opcode].size) {
1.1.1.3 root 2284: case sz_byte: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = (uae_s32)(uae_s8)src;\n"); break;
2285: case sz_word: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = (uae_s32)(uae_s16)src;\n"); break;
2286: case sz_long: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = src;\n"); break;
1.1.1.5 ! root 2287: default: abort ();
1.1 root 2288: }
1.1.1.3 root 2289: printf ("\t} else {\n");
2290: genastore ("src", Dreg, "(extra >> 12) & 7", table68k[opcode].size, "");
2291: printf ("\t}\n");
1.1 root 2292: pop_braces (old_brace_level);
2293: }
2294: break;
1.1.1.5 ! root 2295: case i_BKPT: /* only needed for hardware emulators */
! 2296: sync_m68k_pc ();
1.1.1.3 root 2297: printf ("\top_illg(opcode);\n");
1.1 root 2298: break;
1.1.1.5 ! root 2299: case i_CALLM: /* not present in 68030 */
! 2300: sync_m68k_pc ();
1.1.1.3 root 2301: printf ("\top_illg(opcode);\n");
1.1 root 2302: break;
1.1.1.5 ! root 2303: case i_RTM: /* not present in 68030 */
! 2304: sync_m68k_pc ();
1.1.1.3 root 2305: printf ("\top_illg(opcode);\n");
1.1 root 2306: break;
2307: case i_TRAPcc:
2308: if (table68k[opcode].smode != am_unknown && table68k[opcode].smode != am_illg)
2309: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "dummy", 1, 0);
1.1.1.5 ! root 2310: flush_amodes ();
1.1.1.3 root 2311: printf ("\tif (cctrue(%d)) { Exception(7,m68k_getpc()); goto %s; }\n", table68k[opcode].cc, endlabelstr);
1.1.1.5 ! root 2312: need_endlabel = 1;
1.1 root 2313: break;
2314: case i_DIVL:
1.1.1.3 root 2315: sync_m68k_pc ();
2316: start_brace ();
2317: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1 root 2318: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0);
2319: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 2320: flush_amodes ();
! 2321: sync_m68k_pc ();
1.1.1.3 root 2322: printf ("\tm68k_divl(opcode, dst, extra, oldpc);\n");
1.1 root 2323: break;
2324: case i_MULL:
2325: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0);
2326: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0);
1.1.1.5 ! root 2327: flush_amodes ();
! 2328: sync_m68k_pc ();
1.1.1.3 root 2329: printf ("\tm68k_mull(opcode, dst, extra);\n");
1.1 root 2330: break;
2331: case i_BFTST:
2332: case i_BFEXTU:
2333: case i_BFCHG:
2334: case i_BFEXTS:
2335: case i_BFCLR:
2336: case i_BFFFO:
2337: case i_BFSET:
2338: case i_BFINS:
2339: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0);
1.1.1.3 root 2340: genamode (table68k[opcode].dmode, "dstreg", sz_long, "dst", 2, 0);
1.1.1.5 ! root 2341: flush_amodes ();
! 2342: start_brace ();
1.1.1.3 root 2343: printf ("\tuae_s32 offset = extra & 0x800 ? m68k_dreg(regs, (extra >> 6) & 7) : (extra >> 6) & 0x1f;\n");
2344: printf ("\tint width = (((extra & 0x20 ? m68k_dreg(regs, extra & 7) : extra) -1) & 0x1f) +1;\n");
1.1 root 2345: if (table68k[opcode].dmode == Dreg) {
1.1.1.3 root 2346: printf ("\tuae_u32 tmp = m68k_dreg(regs, dstreg) << (offset & 0x1f);\n");
2347: } else {
2348: printf ("\tuae_u32 tmp,bf0,bf1;\n");
2349: printf ("\tdsta += (offset >> 3) | (offset & 0x80000000 ? ~0x1fffffff : 0);\n");
2350: printf ("\tbf0 = get_long(dsta);bf1 = get_byte(dsta+4) & 0xff;\n");
2351: printf ("\ttmp = (bf0 << (offset & 7)) | (bf1 >> (8 - (offset & 7)));\n");
2352: }
2353: printf ("\ttmp >>= (32 - width);\n");
2354: printf ("\tNFLG = tmp & (1 << (width-1)) ? 1 : 0;ZFLG = tmp == 0;VFLG = 0;CFLG = 0;\n");
1.1.1.5 ! root 2355: switch (table68k[opcode].mnemo) {
1.1.1.3 root 2356: case i_BFTST:
2357: break;
2358: case i_BFEXTU:
2359: printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n");
2360: break;
2361: case i_BFCHG:
2362: printf ("\ttmp = ~tmp;\n");
2363: break;
2364: case i_BFEXTS:
2365: printf ("\tif (NFLG) tmp |= width == 32 ? 0 : (-1 << width);\n");
2366: printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n");
2367: break;
2368: case i_BFCLR:
2369: printf ("\ttmp = 0;\n");
2370: break;
2371: case i_BFFFO:
2372: printf ("\t{ uae_u32 mask = 1 << (width-1);\n");
2373: printf ("\twhile (mask) { if (tmp & mask) break; mask >>= 1; offset++; }}\n");
2374: printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = offset;\n");
2375: break;
2376: case i_BFSET:
2377: printf ("\ttmp = 0xffffffff;\n");
2378: break;
2379: case i_BFINS:
2380: printf ("\ttmp = m68k_dreg(regs, (extra >> 12) & 7);\n");
2381: break;
2382: default:
2383: break;
1.1 root 2384: }
1.1.1.5 ! root 2385: if (table68k[opcode].mnemo == i_BFCHG
! 2386: || table68k[opcode].mnemo == i_BFCLR
! 2387: || table68k[opcode].mnemo == i_BFSET
! 2388: || table68k[opcode].mnemo == i_BFINS)
! 2389: {
! 2390: printf ("\ttmp <<= (32 - width);\n");
! 2391: if (table68k[opcode].dmode == Dreg) {
! 2392: printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & ((offset & 0x1f) == 0 ? 0 :\n");
! 2393: printf ("\t\t(0xffffffff << (32 - (offset & 0x1f))))) |\n");
! 2394: printf ("\t\t(tmp >> (offset & 0x1f)) |\n");
! 2395: printf ("\t\t(((offset & 0x1f) + width) >= 32 ? 0 :\n");
! 2396: printf (" (m68k_dreg(regs, dstreg) & ((uae_u32)0xffffffff >> ((offset & 0x1f) + width))));\n");
! 2397: } else {
! 2398: printf ("\tbf0 = (bf0 & (0xff000000 << (8 - (offset & 7)))) |\n");
! 2399: printf ("\t\t(tmp >> (offset & 7)) |\n");
! 2400: printf ("\t\t(((offset & 7) + width) >= 32 ? 0 :\n");
! 2401: printf ("\t\t (bf0 & ((uae_u32)0xffffffff >> ((offset & 7) + width))));\n");
! 2402: printf ("\tput_long(dsta,bf0 );\n");
! 2403: printf ("\tif (((offset & 7) + width) > 32) {\n");
! 2404: printf ("\t\tbf1 = (bf1 & (0xff >> (width - 32 + (offset & 7)))) |\n");
! 2405: printf ("\t\t\t(tmp << (8 - (offset & 7)));\n");
! 2406: printf ("\t\tput_byte(dsta+4,bf1);\n");
! 2407: printf ("\t}\n");
! 2408: }
1.1 root 2409: }
2410: break;
2411: case i_PACK:
2412: if (table68k[opcode].smode == Dreg) {
1.1.1.5 ! root 2413: printf ("\tuae_u16 val = m68k_dreg(regs, srcreg) + %s;\n", gen_nextiword ());
1.1.1.3 root 2414: printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffffff00) | ((val >> 4) & 0xf0) | (val & 0xf);\n");
2415: } else {
2416: printf ("\tuae_u16 val;\n");
2417: printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
2418: printf ("\tval = (uae_u16)get_byte(m68k_areg(regs, srcreg));\n");
2419: printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
1.1.1.5 ! root 2420: printf ("\tval = (val | ((uae_u16)get_byte(m68k_areg(regs, srcreg)) << 8)) + %s;\n", gen_nextiword ());
1.1.1.3 root 2421: printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
2422: printf ("\tput_byte(m68k_areg(regs, dstreg),((val >> 4) & 0xf0) | (val & 0xf));\n");
1.1 root 2423: }
2424: break;
2425: case i_UNPK:
2426: if (table68k[opcode].smode == Dreg) {
1.1.1.3 root 2427: printf ("\tuae_u16 val = m68k_dreg(regs, srcreg);\n");
1.1.1.5 ! root 2428: printf ("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + %s;\n", gen_nextiword ());
1.1.1.3 root 2429: printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffff0000) | (val & 0xffff);\n");
2430: } else {
2431: printf ("\tuae_u16 val;\n");
2432: printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
2433: printf ("\tval = (uae_u16)get_byte(m68k_areg(regs, srcreg));\n");
1.1.1.5 ! root 2434: printf ("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + %s;\n", gen_nextiword ());
1.1.1.3 root 2435: printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
2436: printf ("\tput_byte(m68k_areg(regs, dstreg),val);\n");
2437: printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
2438: printf ("\tput_byte(m68k_areg(regs, dstreg),val >> 8);\n");
1.1 root 2439: }
2440: break;
2441: case i_TAS:
1.1.1.3 root 2442: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0);
1.1.1.5 ! root 2443: flush_amodes ();
! 2444: genflags (flag_logical, table68k[opcode].size, "src", "", "");
1.1.1.3 root 2445: printf ("\tsrc |= 0x80;\n");
2446: genastore ("src", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src");
1.1 root 2447: break;
2448: case i_FPP:
2449: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0);
1.1.1.5 ! root 2450: flush_amodes ();
! 2451: sync_m68k_pc ();
1.1.1.3 root 2452: printf ("\tfpp_opp(opcode,extra);\n");
1.1 root 2453: break;
2454: case i_FDBcc:
2455: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0);
1.1.1.5 ! root 2456: flush_amodes ();
! 2457: sync_m68k_pc ();
1.1.1.3 root 2458: printf ("\tfdbcc_opp(opcode,extra);\n");
1.1 root 2459: break;
2460: case i_FScc:
2461: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0);
1.1.1.5 ! root 2462: flush_amodes ();
! 2463: sync_m68k_pc ();
1.1.1.3 root 2464: printf ("\tfscc_opp(opcode,extra);\n");
1.1 root 2465: break;
2466: case i_FTRAPcc:
1.1.1.5 ! root 2467: sync_m68k_pc ();
! 2468: start_brace ();
1.1.1.3 root 2469: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1 root 2470: if (table68k[opcode].smode != am_unknown && table68k[opcode].smode != am_illg)
2471: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "dummy", 1, 0);
1.1.1.5 ! root 2472: flush_amodes ();
! 2473: sync_m68k_pc ();
1.1.1.3 root 2474: printf ("\tftrapcc_opp(opcode,oldpc);\n");
1.1 root 2475: break;
2476: case i_FBcc:
1.1.1.5 ! root 2477: sync_m68k_pc ();
! 2478: start_brace ();
1.1.1.3 root 2479: printf ("\tuaecptr pc = m68k_getpc();\n");
1.1 root 2480: genamode (table68k[opcode].dmode, "srcreg", table68k[opcode].size, "extra", 1, 0);
1.1.1.5 ! root 2481: flush_amodes ();
! 2482: sync_m68k_pc ();
1.1.1.3 root 2483: printf ("\tfbcc_opp(opcode,pc,extra);\n");
1.1 root 2484: break;
2485: case i_FSAVE:
1.1.1.5 ! root 2486: sync_m68k_pc ();
1.1.1.3 root 2487: printf ("\tfsave_opp(opcode);\n");
1.1 root 2488: break;
2489: case i_FRESTORE:
1.1.1.5 ! root 2490: sync_m68k_pc ();
1.1.1.3 root 2491: printf ("\tfrestore_opp(opcode);\n");
1.1 root 2492: break;
2493: case i_MMUOP:
2494: genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0);
1.1.1.5 ! root 2495: flush_amodes ();
! 2496: sync_m68k_pc ();
1.1.1.3 root 2497: printf ("\tmmu_op(opcode,extra);\n");
1.1 root 2498: break;
2499: default:
1.1.1.5 ! root 2500: abort ();
1.1 root 2501: break;
1.1.1.5 ! root 2502: }
1.1 root 2503: finish_braces ();
1.1.1.3 root 2504: sync_m68k_pc ();
1.1 root 2505: }
2506:
1.1.1.5 ! root 2507: static void generate_includes (FILE * f)
1.1.1.3 root 2508: {
2509: fprintf (f, "#include \"sysconfig.h\"\n");
2510: fprintf (f, "#include \"sysdeps.h\"\n");
2511: fprintf (f, "#include \"config.h\"\n");
2512: fprintf (f, "#include \"options.h\"\n");
2513: fprintf (f, "#include \"machdep/m68k.h\"\n");
2514: fprintf (f, "#include \"memory.h\"\n");
2515: fprintf (f, "#include \"custom.h\"\n");
2516: fprintf (f, "#include \"readcpu.h\"\n");
2517: fprintf (f, "#include \"newcpu.h\"\n");
2518: fprintf (f, "#include \"compiler.h\"\n");
2519: fprintf (f, "#include \"cputbl.h\"\n");
2520: }
2521:
2522: static int postfix;
2523:
2524: static void generate_one_opcode (int rp)
1.1 root 2525: {
2526: int i;
1.1.1.3 root 2527: uae_u16 smsk, dmsk;
2528: long int opcode = opcode_map[rp];
1.1 root 2529:
1.1.1.3 root 2530: if (table68k[opcode].mnemo == i_ILLG
2531: || table68k[opcode].clev > cpu_level)
2532: return;
1.1 root 2533:
1.1.1.5 ! root 2534: for (i = 0; lookuptab[i].name[0]; i++) {
1.1.1.3 root 2535: if (table68k[opcode].mnemo == lookuptab[i].mnemo)
2536: break;
2537: }
1.1 root 2538:
1.1.1.3 root 2539: if (table68k[opcode].handler != -1)
2540: return;
1.1 root 2541:
1.1.1.3 root 2542: if (opcode_next_clev[rp] != cpu_level) {
2543: fprintf (stblfile, "{ op_%lx_%d, 0, %ld }, /* %s */\n", opcode, opcode_last_postfix[rp],
2544: opcode, lookuptab[i].name);
2545: return;
2546: }
2547: fprintf (stblfile, "{ op_%lx_%d, 0, %ld }, /* %s */\n", opcode, postfix, opcode, lookuptab[i].name);
2548: fprintf (headerfile, "extern cpuop_func op_%lx_%d;\n", opcode, postfix);
1.1.1.5 ! root 2549: printf ("unsigned long REGPARAM2 op_%lx_%d(uae_u32 opcode) /* %s */\n{\n", opcode, postfix, lookuptab[i].name);
1.1.1.3 root 2550:
2551: switch (table68k[opcode].stype) {
2552: case 0: smsk = 7; break;
2553: case 1: smsk = 255; break;
2554: case 2: smsk = 15; break;
2555: case 3: smsk = 7; break;
2556: case 4: smsk = 7; break;
2557: case 5: smsk = 63; break;
1.1.1.5 ! root 2558: default: abort ();
1.1.1.3 root 2559: }
2560: dmsk = 7;
2561:
2562: next_cpu_level = -1;
2563: if (table68k[opcode].suse
1.1.1.5 ! root 2564: && table68k[opcode].smode != imm && table68k[opcode].smode != imm0
1.1.1.3 root 2565: && table68k[opcode].smode != imm1 && table68k[opcode].smode != imm2
2566: && table68k[opcode].smode != absw && table68k[opcode].smode != absl
2567: && table68k[opcode].smode != PC8r && table68k[opcode].smode != PC16)
2568: {
2569: if (table68k[opcode].spos == -1) {
1.1.1.5 ! root 2570: if (((int) table68k[opcode].sreg) >= 128)
! 2571: printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].sreg);
1.1.1.3 root 2572: else
1.1.1.5 ! root 2573: printf ("\tuae_u32 srcreg = %d;\n", (int) table68k[opcode].sreg);
1.1.1.3 root 2574: } else {
2575: char source[100];
1.1.1.5 ! root 2576:
! 2577: /* Check that we can do the little endian optimization safely. */
! 2578: if (table68k[opcode].spos < 8 && (smsk << table68k[opcode].spos) > 255)
! 2579: abort ();
1.1.1.3 root 2580:
1.1.1.5 ! root 2581: printf ("#ifdef HAVE_GET_WORD_UNSWAPPED\n");
! 2582:
! 2583: if (table68k[opcode].spos != 8)
! 2584: sprintf (source, "((opcode >> %d) & %d)", (int) table68k[opcode].spos ^ 8, smsk);
! 2585: else
! 2586: sprintf (source, "(opcode & %d)", smsk);
! 2587:
! 2588: if (table68k[opcode].stype == 3)
! 2589: printf ("\tuae_u32 srcreg = imm8_table[%s];\n", source);
! 2590: else if (table68k[opcode].stype == 1)
! 2591: printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%s;\n", source);
! 2592: else
! 2593: printf ("\tuae_u32 srcreg = %s;\n", source);
! 2594:
! 2595: printf ("#else\n");
! 2596:
1.1.1.3 root 2597: if (table68k[opcode].spos)
1.1.1.5 ! root 2598: sprintf (source, "((opcode >> %d) & %d)", (int) table68k[opcode].spos, smsk);
1.1.1.3 root 2599: else
1.1.1.5 ! root 2600: sprintf (source, "(opcode & %d)", smsk);
! 2601:
1.1.1.3 root 2602: if (table68k[opcode].stype == 3)
2603: printf ("\tuae_u32 srcreg = imm8_table[%s];\n", source);
2604: else if (table68k[opcode].stype == 1)
2605: printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%s;\n", source);
2606: else
2607: printf ("\tuae_u32 srcreg = %s;\n", source);
1.1.1.5 ! root 2608:
! 2609: printf ("#endif\n");
1.1 root 2610: }
1.1.1.3 root 2611: }
2612: if (table68k[opcode].duse
2613: /* Yes, the dmode can be imm, in case of LINK or DBcc */
1.1.1.5 ! root 2614: && table68k[opcode].dmode != imm && table68k[opcode].dmode != imm0
1.1.1.3 root 2615: && table68k[opcode].dmode != imm1 && table68k[opcode].dmode != imm2
1.1.1.5 ! root 2616: && table68k[opcode].dmode != absw && table68k[opcode].dmode != absl)
! 2617: {
1.1.1.3 root 2618: if (table68k[opcode].dpos == -1) {
1.1.1.5 ! root 2619: if (((int) table68k[opcode].dreg) >= 128)
! 2620: printf ("\tuae_u32 dstreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].dreg);
1.1.1.3 root 2621: else
1.1.1.5 ! root 2622: printf ("\tuae_u32 dstreg = %d;\n", (int) table68k[opcode].dreg);
1.1.1.3 root 2623: } else {
1.1.1.5 ! root 2624: int pos = table68k[opcode].dpos;
! 2625: /* Check that we can do the little endian optimization safely. */
! 2626: if (pos < 8 && (dmsk << pos) > 255)
! 2627: abort ();
! 2628:
! 2629: printf ("#ifdef HAVE_GET_WORD_UNSWAPPED\n");
! 2630:
! 2631: if (pos != 8)
! 2632: printf ("\tuae_u32 dstreg = (opcode >> %d) & %d;\n",
! 2633: pos ^ 8, dmsk);
! 2634: else
! 2635: printf ("\tuae_u32 dstreg = opcode & %d;\n", dmsk);
! 2636:
! 2637: printf ("#else\n");
! 2638:
! 2639: if (pos)
1.1.1.3 root 2640: printf ("\tuae_u32 dstreg = (opcode >> %d) & %d;\n",
1.1.1.5 ! root 2641: pos, dmsk);
1.1.1.3 root 2642: else
2643: printf ("\tuae_u32 dstreg = opcode & %d;\n", dmsk);
1.1.1.5 ! root 2644:
! 2645: printf ("#endif\n");
1.1 root 2646: }
2647: }
1.1.1.5 ! root 2648: need_endlabel = 0;
1.1.1.3 root 2649: endlabelno++;
2650: sprintf (endlabelstr, "endlabel%d", endlabelno);
2651: gen_opcode (opcode);
1.1.1.5 ! root 2652: if (need_endlabel)
! 2653: printf ("%s: (void)0;\n", endlabelstr);
! 2654: printf ("return %d;\n", insn_n_cycles);
1.1.1.3 root 2655: printf ("}\n");
2656: opcode_next_clev[rp] = next_cpu_level;
2657: opcode_last_postfix[rp] = postfix;
1.1 root 2658: }
2659:
1.1.1.3 root 2660: static void generate_func (void)
1.1 root 2661: {
1.1.1.5 ! root 2662: int i, j, rp;
1.1 root 2663:
1.1.1.3 root 2664: using_prefetch = 0;
2665: using_exception_3 = 0;
2666: for (i = 0; i < 5; i++) {
2667: cpu_level = 3 - i;
2668: if (i == 4) {
2669: cpu_level = 0;
2670: using_prefetch = 1;
2671: using_exception_3 = 1;
2672: for (rp = 0; rp < nr_cpuop_funcs; rp++)
2673: opcode_next_clev[rp] = 0;
2674: }
2675: postfix = i;
2676: fprintf (stblfile, "struct cputbl op_smalltbl_%d[] = {\n", postfix);
2677:
1.1.1.5 ! root 2678: /* sam: this is for people with low memory (eg. me :)) */
! 2679: printf ("\n"
! 2680: "#if !defined(PART_1) && !defined(PART_2) && "
! 2681: "!defined(PART_3) && !defined(PART_4) && "
! 2682: "!defined(PART_5) && !defined(PART_6) && "
! 2683: "!defined(PART_7) && !defined(PART_8)"
! 2684: "\n"
! 2685: "#define PART_1 1\n"
! 2686: "#define PART_2 1\n"
! 2687: "#define PART_3 1\n"
! 2688: "#define PART_4 1\n"
! 2689: "#define PART_5 1\n"
! 2690: "#define PART_6 1\n"
! 2691: "#define PART_7 1\n"
! 2692: "#define PART_8 1\n"
! 2693: "#endif\n\n");
! 2694:
! 2695: rp = 0;
! 2696: for(j=1;j<=8;++j) {
! 2697: int k = (j*nr_cpuop_funcs)/8;
! 2698: printf ("#ifdef PART_%d\n",j);
! 2699: for (; rp < k; rp++)
! 2700: generate_one_opcode (rp);
! 2701: printf ("#endif\n\n");
! 2702: }
! 2703:
1.1.1.3 root 2704: fprintf (stblfile, "{ 0, 0, 0 }};\n");
1.1 root 2705: }
2706:
2707: }
2708:
1.1.1.3 root 2709: int main (int argc, char **argv)
1.1.1.5 ! root 2710: {
1.1 root 2711: read_table68k ();
2712: do_merges ();
1.1.1.3 root 2713:
1.1.1.5 ! root 2714: opcode_map = (int *) xmalloc (sizeof (int) * nr_cpuop_funcs);
! 2715: opcode_last_postfix = (int *) xmalloc (sizeof (int) * nr_cpuop_funcs);
! 2716: opcode_next_clev = (int *) xmalloc (sizeof (int) * nr_cpuop_funcs);
! 2717: counts = (unsigned long *) xmalloc (65536 * sizeof (unsigned long));
! 2718: read_counts ();
1.1.1.3 root 2719:
2720: /* It would be a lot nicer to put all in one file (we'd also get rid of
2721: * cputbl.h that way), but cpuopti can't cope. That could be fixed, but
2722: * I don't dare to touch the 68k version. */
1.1.1.5 ! root 2723:
1.1.1.3 root 2724: headerfile = fopen ("cputbl.h", "wb");
2725: stblfile = fopen ("cpustbl.c", "wb");
2726: freopen ("cpuemu.c", "wb", stdout);
2727:
2728: generate_includes (stdout);
2729: generate_includes (stblfile);
2730:
2731: generate_func ();
2732:
2733: free (table68k);
1.1 root 2734: return 0;
2735: }
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