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