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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:
1.1.1.7 ! root 565: static void duplicate_carry (void)
! 566: {
! 567: printf ("\tCOPY_CARRY;\n");
! 568: }
! 569:
1.1 root 570: typedef enum {
1.1.1.7 ! root 571: flag_logical_noclobber, flag_logical, flag_add, flag_sub, flag_cmp, flag_addx, flag_subx, flag_zn,
1.1 root 572: flag_av, flag_sv
573: } flagtypes;
574:
1.1.1.5 root 575: static void genflags_normal (flagtypes type, wordsizes size, char *value, char *src, char *dst)
1.1 root 576: {
1.1.1.5 root 577: char vstr[100], sstr[100], dstr[100];
578: char usstr[100], udstr[100];
579: char unsstr[100], undstr[100];
1.1 root 580:
1.1.1.5 root 581: switch (size) {
1.1 root 582: case sz_byte:
1.1.1.5 root 583: strcpy (vstr, "((uae_s8)(");
584: strcpy (usstr, "((uae_u8)(");
1.1 root 585: break;
586: case sz_word:
1.1.1.5 root 587: strcpy (vstr, "((uae_s16)(");
588: strcpy (usstr, "((uae_u16)(");
1.1 root 589: break;
590: case sz_long:
1.1.1.5 root 591: strcpy (vstr, "((uae_s32)(");
592: strcpy (usstr, "((uae_u32)(");
1.1 root 593: break;
594: default:
1.1.1.5 root 595: abort ();
1.1 root 596: }
1.1.1.5 root 597: strcpy (unsstr, usstr);
1.1 root 598:
1.1.1.5 root 599: strcpy (sstr, vstr);
600: strcpy (dstr, vstr);
601: strcat (vstr, value);
602: strcat (vstr, "))");
603: strcat (dstr, dst);
604: strcat (dstr, "))");
605: strcat (sstr, src);
606: strcat (sstr, "))");
607:
608: strcpy (udstr, usstr);
609: strcat (udstr, dst);
610: strcat (udstr, "))");
611: strcat (usstr, src);
612: strcat (usstr, "))");
613:
614: strcpy (undstr, unsstr);
615: strcat (unsstr, "-");
616: strcat (undstr, "~");
617: strcat (undstr, dst);
618: strcat (undstr, "))");
619: strcat (unsstr, src);
620: strcat (unsstr, "))");
1.1 root 621:
622: switch (type) {
1.1.1.7 ! root 623: case flag_logical_noclobber:
1.1 root 624: case flag_logical:
625: case flag_zn:
626: case flag_av:
627: case flag_sv:
628: case flag_addx:
629: case flag_subx:
630: break;
1.1.1.3 root 631:
1.1 root 632: case flag_add:
1.1.1.5 root 633: start_brace ();
1.1.1.3 root 634: printf ("uae_u32 %s = %s + %s;\n", value, dstr, sstr);
1.1 root 635: break;
636: case flag_sub:
637: case flag_cmp:
1.1.1.5 root 638: start_brace ();
1.1.1.3 root 639: printf ("uae_u32 %s = %s - %s;\n", value, dstr, sstr);
1.1 root 640: break;
641: }
642:
643: switch (type) {
1.1.1.7 ! root 644: case flag_logical_noclobber:
1.1 root 645: case flag_logical:
646: case flag_zn:
647: break;
1.1.1.3 root 648:
1.1 root 649: case flag_add:
650: case flag_sub:
651: case flag_addx:
652: case flag_subx:
653: case flag_cmp:
654: case flag_av:
655: case flag_sv:
1.1.1.5 root 656: start_brace ();
657: printf ("\t" BOOL_TYPE " flgs = %s < 0;\n", sstr);
658: printf ("\t" BOOL_TYPE " flgo = %s < 0;\n", dstr);
659: printf ("\t" BOOL_TYPE " flgn = %s < 0;\n", vstr);
1.1 root 660: break;
661: }
1.1.1.3 root 662:
1.1.1.5 root 663: switch (type) {
1.1 root 664: case flag_logical:
1.1.1.7 ! root 665: printf ("\tCLEAR_CZNV;\n");
! 666: printf ("\tSET_ZFLG (%s == 0);\n", vstr);
! 667: printf ("\tSET_NFLG (%s < 0);\n", vstr);
! 668: break;
! 669: case flag_logical_noclobber:
! 670: printf ("\tSET_ZFLG (%s == 0);\n", vstr);
! 671: printf ("\tSET_NFLG (%s < 0);\n", vstr);
1.1 root 672: break;
673: case flag_av:
1.1.1.7 ! root 674: printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n");
1.1 root 675: break;
676: case flag_sv:
1.1.1.7 ! root 677: printf ("\tSET_VFLG ((flgs ^ flgo) & (flgn ^ flgo));\n");
1.1 root 678: break;
679: case flag_zn:
1.1.1.7 ! root 680: printf ("\tSET_ZFLG (GET_ZFLG & (%s == 0));\n", vstr);
! 681: printf ("\tSET_NFLG (%s < 0);\n", vstr);
1.1 root 682: break;
683: case flag_add:
1.1.1.7 ! root 684: printf ("\tSET_ZFLG (%s == 0);\n", vstr);
! 685: printf ("\tVFLG = (flgs ^ flgn) & (flgo ^ flgn));\n");
! 686: printf ("\tSET_CFLG (%s < %s);\n", undstr, usstr);
! 687: duplicate_carry ();
! 688: printf ("\tSET_NFLG (flgn != 0);\n");
1.1 root 689: break;
690: case flag_sub:
1.1.1.7 ! root 691: printf ("\tSET_ZFLG (%s == 0);\n", vstr);
! 692: printf ("\tSET_VFLG ((flgs ^ flgo) & (flgn ^ flgo));\n");
! 693: printf ("\tSET_CFLG (%s > %s);\n", usstr, udstr);
! 694: printf ("\tSET_NFLG (flgn != 0);\n");
1.1 root 695: break;
696: case flag_addx:
1.1.1.7 ! root 697: printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n"); /* minterm SON: 0x42 */
! 698: printf ("\tSET_CFLG (flgs ^ ((flgs ^ flgo) & (flgo ^ flgn)));\n"); /* minterm SON: 0xD4 */
! 699: duplicate_carry ();
1.1 root 700: break;
701: case flag_subx:
1.1.1.7 ! root 702: printf ("\tSET_VFLG ((flgs ^ flgo) & (flgo ^ flgn));\n"); /* minterm SON: 0x24 */
! 703: printf ("\tSET_CFLG (flgs ^ ((flgs ^ flgn) & (flgo ^ flgn)));\n"); /* minterm SON: 0xB2 */
! 704: duplicate_carry ();
1.1 root 705: break;
706: case flag_cmp:
1.1.1.7 ! root 707: printf ("\tSET_ZFLG (%s == 0);\n", vstr);
! 708: printf ("\tSET_VFLG ((flgs != flgo) && (flgn != flgo));\n");
! 709: printf ("\tSET_CFLG (%s > %s);\n", usstr, udstr);
! 710: printf ("\tSET_NFLG (flgn != 0);\n");
1.1 root 711: break;
712: }
713: }
714:
1.1.1.5 root 715: static void genflags (flagtypes type, wordsizes size, char *value, char *src, char *dst)
1.1 root 716: {
1.1.1.3 root 717: #ifdef X86_ASSEMBLY
1.1 root 718: switch (type) {
1.1.1.5 root 719: case flag_add:
720: case flag_sub:
721: start_brace ();
1.1.1.3 root 722: printf ("\tuae_u32 %s;\n", value);
1.1 root 723: break;
724:
1.1.1.3 root 725: default:
1.1 root 726: break;
727: }
728:
1.1.1.3 root 729: /* At least some of those casts are fairly important! */
1.1.1.5 root 730: switch (type) {
1.1.1.7 ! root 731: case flag_logical_noclobber:
! 732: printf ("\t{uae_u32 oldcznv = regflags.cznv & ~0xC0;\n");
! 733: if (strcmp (value, "0") == 0) {
! 734: printf ("\tregflags.cznv = olcznv | 64;\n");
! 735: } else {
! 736: switch (size) {
! 737: case sz_byte: printf ("\tx86_flag_testb ((uae_s8)(%s));\n", value); break;
! 738: case sz_word: printf ("\tx86_flag_testw ((uae_s16)(%s));\n", value); break;
! 739: case sz_long: printf ("\tx86_flag_testl ((uae_s32)(%s));\n", value); break;
! 740: }
! 741: printf ("\tregflags.cznv |= oldcznv;\n");
! 742: }
! 743: printf ("\t}\n");
! 744: return;
1.1 root 745: case flag_logical:
1.1.1.5 root 746: if (strcmp (value, "0") == 0) {
1.1.1.7 ! root 747: printf ("\tregflags.cznv = 64;\n");
1.1 root 748: } else {
1.1.1.5 root 749: switch (size) {
1.1.1.3 root 750: case sz_byte: printf ("\tx86_flag_testb ((uae_s8)(%s));\n", value); break;
751: case sz_word: printf ("\tx86_flag_testw ((uae_s16)(%s));\n", value); break;
752: case sz_long: printf ("\tx86_flag_testl ((uae_s32)(%s));\n", value); break;
1.1 root 753: }
754: }
755: return;
756:
757: case flag_add:
1.1.1.5 root 758: switch (size) {
1.1.1.3 root 759: case sz_byte: printf ("\tx86_flag_addb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
760: case sz_word: printf ("\tx86_flag_addw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
761: case sz_long: printf ("\tx86_flag_addl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
1.1 root 762: }
763: return;
764:
765: case flag_sub:
1.1.1.5 root 766: switch (size) {
1.1.1.3 root 767: case sz_byte: printf ("\tx86_flag_subb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
768: case sz_word: printf ("\tx86_flag_subw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
769: case sz_long: printf ("\tx86_flag_subl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
1.1 root 770: }
771: return;
772:
773: case flag_cmp:
1.1.1.5 root 774: switch (size) {
1.1.1.3 root 775: case sz_byte: printf ("\tx86_flag_cmpb ((uae_s8)(%s), (uae_s8)(%s));\n", src, dst); break;
776: case sz_word: printf ("\tx86_flag_cmpw ((uae_s16)(%s), (uae_s16)(%s));\n", src, dst); break;
777: case sz_long: printf ("\tx86_flag_cmpl ((uae_s32)(%s), (uae_s32)(%s));\n", src, dst); break;
1.1 root 778: }
779: return;
1.1.1.5 root 780:
1.1.1.3 root 781: default:
782: break;
1.1 root 783: }
1.1.1.2 root 784: #elif defined(M68K_FLAG_OPT)
1.1.1.3 root 785: /* sam: here I'm cloning what X86_ASSEMBLY does */
786: #define EXT(size) (size==sz_byte?"b":(size==sz_word?"w":"l"))
787: #define CAST(size) (size==sz_byte?"uae_s8":(size==sz_word?"uae_s16":"uae_s32"))
1.1.1.2 root 788: switch (type) {
1.1.1.5 root 789: case flag_add:
790: case flag_sub:
791: start_brace ();
1.1.1.3 root 792: printf ("\tuae_u32 %s;\n", value);
1.1.1.2 root 793: break;
794:
1.1.1.3 root 795: default:
1.1.1.2 root 796: break;
797: }
798:
1.1.1.5 root 799: switch (type) {
1.1.1.2 root 800: case flag_logical:
1.1.1.5 root 801: if (strcmp (value, "0") == 0) {
802: printf ("\t*(uae_u16 *)®flags = 4;\n"); /* Z = 1 */
1.1.1.2 root 803: } else {
1.1.1.5 root 804: printf ("\tm68k_flag_tst (%s, (%s)(%s));\n",
805: EXT (size), CAST (size), value);
1.1.1.2 root 806: }
807: return;
808:
809: case flag_add:
1.1.1.3 root 810: printf ("\t{uae_u16 ccr;\n");
1.1.1.5 root 811: printf ("\tm68k_flag_add (%s, (%s)%s, (%s)(%s), (%s)(%s));\n",
812: EXT (size), CAST (size), value, CAST (size), src, CAST (size), dst);
1.1.1.3 root 813: printf ("\t((uae_u16*)®flags)[1]=((uae_u16*)®flags)[0]=ccr;}\n");
1.1.1.2 root 814: return;
815:
816: case flag_sub:
1.1.1.3 root 817: printf ("\t{uae_u16 ccr;\n");
1.1.1.5 root 818: printf ("\tm68k_flag_sub (%s, (%s)%s, (%s)(%s), (%s)(%s));\n",
819: EXT (size), CAST (size), value, CAST (size), src, CAST (size), dst);
1.1.1.3 root 820: printf ("\t((uae_u16*)®flags)[1]=((uae_u16*)®flags)[0]=ccr;}\n");
1.1.1.2 root 821: return;
822:
823: case flag_cmp:
1.1.1.5 root 824: printf ("\tm68k_flag_cmp (%s, (%s)(%s), (%s)(%s));\n",
825: EXT (size), CAST (size), src, CAST (size), dst);
1.1.1.2 root 826: return;
1.1.1.3 root 827:
828: default:
829: break;
1.1.1.2 root 830: }
1.1.1.3 root 831: #elif defined(ACORN_FLAG_OPT) && defined(__GNUC_MINOR__)
832: /*
833: * This is new. Might be quite buggy.
834: */
1.1.1.5 root 835: switch (type) {
836: case flag_av:
837: case flag_sv:
838: case flag_zn:
839: case flag_addx:
840: case flag_subx:
841: break;
842:
843: case flag_logical:
844: if (strcmp (value, "0") == 0) {
845: /* v=c=n=0 z=1 */
846: printf ("\t*(ULONG*)®flags = 0x40000000;\n");
1.1.1.3 root 847: return;
1.1.1.5 root 848: } else {
849: start_brace ();
850: switch (size) {
851: case sz_byte:
852: printf ("\tUBYTE ccr;\n");
853: printf ("\tULONG shift;\n");
854: printf ("\t__asm__(\"mov %%2,%%1,lsl#24\n\ttst %%2,%%2\n\tmov %%0,r15,lsr#24\n\tbic %%0,%%0,#0x30\"\n"
855: "\t: \"=r\" (ccr) : \"r\" (%s), \"r\" (shift) : \"cc\" );\n", value);
856: printf ("\t*((UBYTE*)®flags+3) = ccr;\n");
857: return;
858: case sz_word:
859: printf ("\tUBYTE ccr;\n");
860: printf ("\tULONG shift;\n");
861: printf ("\t__asm__(\"mov %%2,%%1,lsl#16\n\ttst %%2,%%2\n\tmov %%0,r15,lsr#24\n\tbic %%0,%%0,#0x30\"\n"
862: "\t: \"=r\" (ccr) : \"r\" ((WORD)%s), \"r\" (shift) : \"cc\" );\n", value);
863: printf ("\t*((UBYTE*)®flags+3) = ccr;\n");
864: return;
865: case sz_long:
866: printf ("\tUBYTE ccr;\n");
867: printf ("\t__asm__(\"tst %%1,%%1\n\tmov %%0,r15,lsr#24\n\tbic %%0,%%0,#0x30\"\n"
868: "\t: \"=r\" (ccr) : \"r\" ((LONG)%s) : \"cc\" );\n", value);
869: printf ("\t*((UBYTE*)®flags+3) = ccr;\n");
870: return;
871: }
1.1.1.3 root 872: }
1.1.1.5 root 873: break;
874: case flag_add:
875: if (strcmp (dst, "0") == 0) {
876: printf ("/* Error! Hier muss Peter noch was machen !!! (ADD-Flags) */");
877: } else {
878: start_brace ();
879: switch (size) {
880: case sz_byte:
881: printf ("\tULONG ccr, shift, %s;\n", value);
882: 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"
883: "\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" (%s), \"r\" (%s), \"r\" (shift) : \"cc\" );\n", value, src, dst);
884: printf ("\t*(ULONG*)®flags = ccr;\n");
885: return;
886: case sz_word:
887: printf ("\tULONG ccr, shift, %s;\n", value);
888: 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"
889: "\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" ((WORD)%s), \"r\" ((WORD)%s), \"r\" (shift) : \"cc\" );\n", value, src, dst);
890: printf ("\t*(ULONG*)®flags = ccr;\n");
891: return;
892: case sz_long:
893: printf ("\tULONG ccr, %s;\n", value);
894: printf ("\t__asm__(\"adds %%0,%%3,%%2\n\tmov %%1,r15\n\torr %%1,%%1,%%1,lsr#29\"\n"
895: "\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" ((LONG)%s), \"r\" ((LONG)%s) : \"cc\" );\n", value, src, dst);
896: printf ("\t*(ULONG*)®flags = ccr;\n");
897: return;
898: }
1.1.1.3 root 899: }
1.1.1.5 root 900: break;
901: case flag_sub:
902: if (strcmp (dst, "0") == 0) {
903: printf ("/* Error! Hier muss Peter noch was machen !!! (SUB-Flags) */");
904: } else {
905: start_brace ();
906: switch (size) {
907: case sz_byte:
908: printf ("\tULONG ccr, shift, %s;\n", value);
909: 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"
910: "\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" (%s), \"r\" (%s), \"r\" (shift) : \"cc\" );\n", value, src, dst);
911: printf ("\t*(ULONG*)®flags = ccr;\n");
912: return;
913: case sz_word:
914: printf ("\tULONG ccr, shift, %s;\n", value);
915: 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"
916: "\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" ((WORD)%s), \"r\" ((WORD)%s), \"r\" (shift) : \"cc\" );\n", value, src, dst);
917: printf ("\t*(ULONG*)®flags = ccr;\n");
918: return;
919: case sz_long:
920: printf ("\tULONG ccr, %s;\n", value);
921: printf ("\t__asm__(\"subs %%0,%%3,%%2\n\tmov %%1,r15\n\teor %%1,%%1,#0x20000000\n\torr %%1,%%1,%%1,lsr#29\"\n"
922: "\t: \"=r\" (%s), \"=r\" (ccr) : \"r\" ((LONG)%s), \"r\" ((LONG)%s) : \"cc\" );\n", value, src, dst);
923: printf ("\t*(ULONG*)®flags = ccr;\n");
924: return;
925: }
1.1.1.3 root 926: }
1.1.1.5 root 927: break;
928: case flag_cmp:
929: if (strcmp (dst, "0") == 0) {
930: printf ("/*Error! Hier muss Peter noch was machen !!! (CMP-Flags)*/");
931: } else {
932: start_brace ();
933: switch (size) {
934: case sz_byte:
935: printf ("\tULONG shift, ccr;\n");
936: 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"
937: "\t: \"=r\" (ccr) : \"r\" (%s), \"r\" (%s), \"r\" (shift) : \"cc\" );\n", src, dst);
938: printf ("\t*((UBYTE*)®flags+3) = ccr;\n");
939: return;
940: case sz_word:
941: printf ("\tULONG shift, ccr;\n");
942: 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"
943: "\t: \"=r\" (ccr) : \"r\" ((WORD)%s), \"r\" ((WORD)%s), \"r\" (shift) : \"cc\" );\n", src, dst);
944: printf ("\t*((UBYTE*)®flags+3) = ccr;\n");
945: return;
946: case sz_long:
947: printf ("\tULONG ccr;\n");
948: printf ("\t__asm__(\"cmp %%2,%%1\n\tmov %%0,r15,lsr#24\n\teor %%0,%%0,#0x20\"\n"
949: "\t: \"=r\" (ccr) : \"r\" ((LONG)%s), \"r\" ((LONG)%s) : \"cc\" );\n", src, dst);
950: printf ("\t*((UBYTE*)®flags+3) = ccr;\n");
951: /*printf ("\tprintf (\"%%08x %%08x %%08x\\n\", %s, %s, *((ULONG*)®flags));\n", src, dst); */
952: return;
953: }
954: }
955: break;
956: }
1.1 root 957: #endif
1.1.1.5 root 958: genflags_normal (type, size, value, src, dst);
1.1 root 959: }
1.1.1.3 root 960:
1.1.1.7 ! root 961: static void force_range_for_rox (const char *var, wordsizes size)
! 962: {
! 963: /* Could do a modulo operation here... which one is faster? */
! 964: switch (size) {
! 965: case sz_long:
! 966: printf ("\tif (%s >= 33) %s -= 33;\n", var, var);
! 967: break;
! 968: case sz_word:
! 969: printf ("\tif (%s >= 34) %s -= 34;\n", var, var);
! 970: printf ("\tif (%s >= 17) %s -= 17;\n", var, var);
! 971: break;
! 972: case sz_byte:
! 973: printf ("\tif (%s >= 36) %s -= 36;\n", var, var);
! 974: printf ("\tif (%s >= 18) %s -= 18;\n", var, var);
! 975: printf ("\tif (%s >= 9) %s -= 9;\n", var, var);
! 976: break;
! 977: }
! 978: }
! 979:
! 980: static const char *cmask (wordsizes size)
! 981: {
! 982: switch (size) {
! 983: case sz_byte: return "0x80";
! 984: case sz_word: return "0x8000";
! 985: case sz_long: return "0x80000000";
! 986: default: abort ();
! 987: }
! 988: }
! 989:
! 990: static int source_is_imm1_8 (struct instr *i)
! 991: {
! 992: return i->stype == 3;
! 993: }
! 994:
1.1.1.5 root 995: static void gen_opcode (unsigned long int opcode)
1.1 root 996: {
1.1.1.7 ! root 997: struct instr *curi = table68k + opcode;
1.1.1.5 root 998: insn_n_cycles = 2;
999:
1.1 root 1000: start_brace ();
1.1.1.3 root 1001: #if 0
1002: printf ("uae_u8 *m68k_pc = regs.pc_p;\n");
1003: #endif
1004: m68k_pc_offset = 2;
1.1.1.7 ! root 1005: switch (curi->plev) {
1.1.1.3 root 1006: case 0: /* not privileged */
1.1 root 1007: break;
1.1.1.3 root 1008: case 1: /* unprivileged only on 68000 */
1009: if (cpu_level == 0)
1.1 root 1010: break;
1.1.1.3 root 1011: if (next_cpu_level < 0)
1012: next_cpu_level = 0;
1013:
1.1.1.5 root 1014: /* fall through */
1.1 root 1015: case 2: /* priviledged */
1.1.1.3 root 1016: printf ("if (!regs.s) { Exception(8,0); goto %s; }\n", endlabelstr);
1.1.1.5 root 1017: need_endlabel = 1;
1018: start_brace ();
1.1 root 1019: break;
1.1.1.3 root 1020: case 3: /* privileged if size == word */
1.1.1.7 ! root 1021: if (curi->size == sz_byte)
1.1 root 1022: break;
1.1.1.3 root 1023: printf ("if (!regs.s) { Exception(8,0); goto %s; }\n", endlabelstr);
1.1.1.5 root 1024: need_endlabel = 1;
1025: start_brace ();
1.1 root 1026: break;
1027: }
1.1.1.7 ! root 1028: switch (curi->mnemo) {
1.1 root 1029: case i_OR:
1030: case i_AND:
1031: case i_EOR:
1.1.1.7 ! root 1032: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1033: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
! 1034: printf ("\tsrc %c= dst;\n", curi->mnemo == i_OR ? '|' : curi->mnemo == i_AND ? '&' : '^');
! 1035: genflags (flag_logical, curi->size, "src", "", "");
! 1036: genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1037: break;
1038: case i_ORSR:
1.1.1.7 ! root 1039: case i_EORSR:
1.1.1.3 root 1040: printf ("\tMakeSR();\n");
1.1.1.7 ! root 1041: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1042: if (curi->size == sz_byte) {
1.1.1.3 root 1043: printf ("\tsrc &= 0xFF;\n");
1.1 root 1044: }
1.1.1.7 ! root 1045: printf ("\tregs.sr %c= src;\n", curi->mnemo == i_EORSR ? '^' : '|');
1.1.1.3 root 1046: printf ("\tMakeFromSR();\n");
1.1 root 1047: break;
1.1.1.3 root 1048: case i_ANDSR:
1049: printf ("\tMakeSR();\n");
1.1.1.7 ! root 1050: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1051: if (curi->size == sz_byte) {
1.1.1.3 root 1052: printf ("\tsrc |= 0xFF00;\n");
1.1 root 1053: }
1.1.1.3 root 1054: printf ("\tregs.sr &= src;\n");
1055: printf ("\tMakeFromSR();\n");
1.1 root 1056: break;
1.1.1.3 root 1057: case i_SUB:
1.1.1.7 ! root 1058: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1059: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
1.1 root 1060: start_brace ();
1.1.1.7 ! root 1061: genflags (flag_sub, curi->size, "newv", "src", "dst");
! 1062: genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1063: break;
1064: case i_SUBA:
1.1.1.7 ! root 1065: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1066: genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
1.1 root 1067: start_brace ();
1.1.1.3 root 1068: printf ("\tuae_u32 newv = dst - src;\n");
1.1.1.7 ! root 1069: genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
1.1 root 1070: break;
1071: case i_SUBX:
1.1.1.7 ! root 1072: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1073: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
1.1 root 1074: start_brace ();
1.1.1.7 ! root 1075: printf ("\tuae_u32 newv = dst - src - (GET_XFLG ? 1 : 0);\n");
! 1076: genflags (flag_subx, curi->size, "newv", "src", "dst");
! 1077: genflags (flag_zn, curi->size, "newv", "", "");
! 1078: genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1079: break;
1080: case i_SBCD:
1081: /* Let's hope this works... */
1.1.1.7 ! root 1082: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1083: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
1.1 root 1084: start_brace ();
1.1.1.7 ! root 1085: printf ("\tuae_u16 newv_lo = (dst & 0xF) - (src & 0xF) - (GET_XFLG ? 1 : 0);\n");
1.1.1.3 root 1086: printf ("\tuae_u16 newv_hi = (dst & 0xF0) - (src & 0xF0);\n");
1087: printf ("\tuae_u16 newv;\n");
1.1.1.7 ! root 1088: printf ("\tint cflg;\n");
1.1.1.3 root 1089: printf ("\tif (newv_lo > 9) { newv_lo-=6; newv_hi-=0x10; }\n");
1090: printf ("\tnewv = newv_hi + (newv_lo & 0xF);");
1.1.1.7 ! root 1091: printf ("\tSET_CFLG (cflg = (newv_hi & 0x1F0) > 0x90);\n");
! 1092: duplicate_carry ();
! 1093: printf ("\tif (cflg) newv -= 0x60;\n");
! 1094: genflags (flag_zn, curi->size, "newv", "", "");
! 1095: genflags (flag_sv, curi->size, "newv", "src", "dst");
! 1096: genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1097: break;
1098: case i_ADD:
1.1.1.7 ! root 1099: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1100: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
1.1 root 1101: start_brace ();
1.1.1.7 ! root 1102: genflags (flag_add, curi->size, "newv", "src", "dst");
! 1103: genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1104: break;
1.1.1.3 root 1105: case i_ADDA:
1.1.1.7 ! root 1106: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1107: genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
1.1 root 1108: start_brace ();
1.1.1.3 root 1109: printf ("\tuae_u32 newv = dst + src;\n");
1.1.1.7 ! root 1110: genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
1.1 root 1111: break;
1112: case i_ADDX:
1.1.1.7 ! root 1113: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1114: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
1.1 root 1115: start_brace ();
1.1.1.7 ! root 1116: printf ("\tuae_u32 newv = dst + src + (GET_XFLG ? 1 : 0);\n");
! 1117: genflags (flag_addx, curi->size, "newv", "src", "dst");
! 1118: genflags (flag_zn, curi->size, "newv", "", "");
! 1119: genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1120: break;
1121: case i_ABCD:
1.1.1.7 ! root 1122: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1123: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
1.1 root 1124: start_brace ();
1.1.1.7 ! root 1125: printf ("\tuae_u16 newv_lo = (src & 0xF) + (dst & 0xF) + (GET_XFLG ? 1 : 0);\n");
1.1.1.3 root 1126: printf ("\tuae_u16 newv_hi = (src & 0xF0) + (dst & 0xF0);\n");
1127: printf ("\tuae_u16 newv;\n");
1.1.1.7 ! root 1128: printf ("\tint cflg;\n");
1.1.1.3 root 1129: printf ("\tif (newv_lo > 9) { newv_lo +=6; }\n");
1130: printf ("\tnewv = newv_hi + newv_lo;");
1.1.1.7 ! root 1131: printf ("\tSET_CFLG (cflg = (newv & 0x1F0) > 0x90);\n");
! 1132: duplicate_carry ();
! 1133: printf ("\tif (cflg) newv += 0x60;\n");
! 1134: genflags (flag_zn, curi->size, "newv", "", "");
! 1135: genflags (flag_sv, curi->size, "newv", "src", "dst");
! 1136: genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1137: break;
1138: case i_NEG:
1.1.1.7 ! root 1139: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
1.1 root 1140: start_brace ();
1.1.1.7 ! root 1141: genflags (flag_sub, curi->size, "dst", "src", "0");
! 1142: genastore ("dst", curi->smode, "srcreg", curi->size, "src");
1.1 root 1143: break;
1144: case i_NEGX:
1.1.1.7 ! root 1145: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
1.1 root 1146: start_brace ();
1.1.1.7 ! root 1147: printf ("\tuae_u32 newv = 0 - src - (GET_XFLG ? 1 : 0);\n");
! 1148: genflags (flag_subx, curi->size, "newv", "src", "0");
! 1149: genflags (flag_zn, curi->size, "newv", "", "");
! 1150: genastore ("newv", curi->smode, "srcreg", curi->size, "src");
1.1 root 1151: break;
1.1.1.3 root 1152: case i_NBCD:
1.1.1.7 ! root 1153: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
1.1 root 1154: start_brace ();
1.1.1.7 ! root 1155: printf ("\tuae_u16 newv_lo = - (src & 0xF) - (GET_XFLG ? 1 : 0);\n");
1.1.1.3 root 1156: printf ("\tuae_u16 newv_hi = - (src & 0xF0);\n");
1157: printf ("\tuae_u16 newv;\n");
1.1.1.7 ! root 1158: printf ("\tint cflg;\n");
1.1.1.3 root 1159: printf ("\tif (newv_lo > 9) { newv_lo-=6; newv_hi-=0x10; }\n");
1160: printf ("\tnewv = newv_hi + (newv_lo & 0xF);");
1.1.1.7 ! root 1161: printf ("\tSET_CFLG (cflg = (newv_hi & 0x1F0) > 0x90);\n");
! 1162: printf ("\tif (cflg) newv -= 0x60;\n");
! 1163: genflags (flag_zn, curi->size, "newv", "", "");
! 1164: genastore ("newv", curi->smode, "srcreg", curi->size, "src");
1.1 root 1165: break;
1.1.1.3 root 1166: case i_CLR:
1.1.1.7 ! root 1167: genamode (curi->smode, "srcreg", curi->size, "src", 2, 0);
! 1168: genflags (flag_logical, curi->size, "0", "", "");
! 1169: genastore ("0", curi->smode, "srcreg", curi->size, "src");
1.1 root 1170: break;
1.1.1.3 root 1171: case i_NOT:
1.1.1.7 ! root 1172: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
1.1 root 1173: start_brace ();
1.1.1.3 root 1174: printf ("\tuae_u32 dst = ~src;\n");
1.1.1.7 ! root 1175: genflags (flag_logical, curi->size, "dst", "", "");
! 1176: genastore ("dst", curi->smode, "srcreg", curi->size, "src");
1.1 root 1177: break;
1178: case i_TST:
1.1.1.7 ! root 1179: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1180: genflags (flag_logical, curi->size, "src", "", "");
1.1 root 1181: break;
1182: case i_BTST:
1.1.1.7 ! root 1183: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1184: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
! 1185: if (curi->size == sz_byte)
1.1.1.3 root 1186: printf ("\tsrc &= 7;\n");
1.1 root 1187: else
1.1.1.3 root 1188: printf ("\tsrc &= 31;\n");
1.1.1.7 ! root 1189: printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n");
1.1 root 1190: break;
1191: case i_BCHG:
1.1.1.7 ! root 1192: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1193: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
! 1194: if (curi->size == sz_byte)
1.1.1.3 root 1195: printf ("\tsrc &= 7;\n");
1.1 root 1196: else
1.1.1.3 root 1197: printf ("\tsrc &= 31;\n");
1198: printf ("\tdst ^= (1 << src);\n");
1.1.1.7 ! root 1199: printf ("\tSET_ZFLG ((dst & (1 << src)) >> src);\n");
! 1200: genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1201: break;
1202: case i_BCLR:
1.1.1.7 ! root 1203: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1204: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
! 1205: if (curi->size == sz_byte)
1.1.1.3 root 1206: printf ("\tsrc &= 7;\n");
1.1 root 1207: else
1.1.1.3 root 1208: printf ("\tsrc &= 31;\n");
1.1.1.7 ! root 1209: printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n");
1.1.1.3 root 1210: printf ("\tdst &= ~(1 << src);\n");
1.1.1.7 ! root 1211: genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1212: break;
1213: case i_BSET:
1.1.1.7 ! root 1214: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1215: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
! 1216: if (curi->size == sz_byte)
1.1.1.3 root 1217: printf ("\tsrc &= 7;\n");
1.1 root 1218: else
1.1.1.3 root 1219: printf ("\tsrc &= 31;\n");
1.1.1.7 ! root 1220: printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n");
1.1.1.3 root 1221: printf ("\tdst |= (1 << src);\n");
1.1.1.7 ! root 1222: genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1223: break;
1224: case i_CMPM:
1225: case i_CMP:
1.1.1.7 ! root 1226: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1227: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
1.1 root 1228: start_brace ();
1.1.1.7 ! root 1229: genflags (flag_cmp, curi->size, "newv", "src", "dst");
1.1 root 1230: break;
1.1.1.3 root 1231: case i_CMPA:
1.1.1.7 ! root 1232: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1233: genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
1.1 root 1234: start_brace ();
1.1.1.5 root 1235: genflags (flag_cmp, sz_long, "newv", "src", "dst");
1.1 root 1236: break;
1237: /* The next two are coded a little unconventional, but they are doing
1238: * weird things... */
1239: case i_MVPRM:
1.1.1.7 ! root 1240: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
1.1.1.5 root 1241:
1242: printf ("\tuaecptr memp = m68k_areg(regs, dstreg) + (uae_s32)(uae_s16)%s;\n", gen_nextiword ());
1.1.1.7 ! root 1243: if (curi->size == sz_word) {
1.1.1.3 root 1244: printf ("\tput_byte(memp, src >> 8); put_byte(memp + 2, src);\n");
1.1 root 1245: } else {
1.1.1.3 root 1246: printf ("\tput_byte(memp, src >> 24); put_byte(memp + 2, src >> 16);\n");
1247: printf ("\tput_byte(memp + 4, src >> 8); put_byte(memp + 6, src);\n");
1.1 root 1248: }
1249: break;
1.1.1.3 root 1250: case i_MVPMR:
1.1.1.5 root 1251: printf ("\tuaecptr memp = m68k_areg(regs, srcreg) + (uae_s32)(uae_s16)%s;\n", gen_nextiword ());
1.1.1.7 ! root 1252: genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
! 1253: if (curi->size == sz_word) {
1.1.1.3 root 1254: printf ("\tuae_u16 val = (get_byte(memp) << 8) + get_byte(memp + 2);\n");
1.1 root 1255: } else {
1.1.1.3 root 1256: printf ("\tuae_u32 val = (get_byte(memp) << 24) + (get_byte(memp + 2) << 16)\n");
1257: printf (" + (get_byte(memp + 4) << 8) + get_byte(memp + 6);\n");
1.1 root 1258: }
1.1.1.7 ! root 1259: genastore ("val", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1260: break;
1261: case i_MOVE:
1.1.1.7 ! root 1262: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1263: genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
! 1264: genflags (flag_logical, curi->size, "src", "", "");
! 1265: genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1266: break;
1267: case i_MOVEA:
1.1.1.7 ! root 1268: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1269: genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
! 1270: if (curi->size == sz_word) {
1.1.1.3 root 1271: printf ("\tuae_u32 val = (uae_s32)(uae_s16)src;\n");
1.1 root 1272: } else {
1.1.1.3 root 1273: printf ("\tuae_u32 val = src;\n");
1.1 root 1274: }
1.1.1.7 ! root 1275: genastore ("val", curi->dmode, "dstreg", sz_long, "dst");
1.1 root 1276: break;
1.1.1.3 root 1277: case i_MVSR2:
1.1.1.7 ! root 1278: genamode (curi->smode, "srcreg", sz_word, "src", 2, 0);
1.1.1.3 root 1279: printf ("\tMakeSR();\n");
1.1.1.7 ! root 1280: if (curi->size == sz_byte)
! 1281: genastore ("regs.sr & 0xff", curi->smode, "srcreg", sz_word, "src");
1.1 root 1282: else
1.1.1.7 ! root 1283: genastore ("regs.sr", curi->smode, "srcreg", sz_word, "src");
1.1 root 1284: break;
1285: case i_MV2SR:
1.1.1.7 ! root 1286: genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
! 1287: if (curi->size == sz_byte)
1.1.1.3 root 1288: printf ("\tMakeSR();\n\tregs.sr &= 0xFF00;\n\tregs.sr |= src & 0xFF;\n");
1289: else {
1290: printf ("\tregs.sr = src;\n");
1.1 root 1291: }
1.1.1.3 root 1292: printf ("\tMakeFromSR();\n");
1.1 root 1293: break;
1.1.1.3 root 1294: case i_SWAP:
1.1.1.7 ! root 1295: genamode (curi->smode, "srcreg", sz_long, "src", 1, 0);
1.1 root 1296: start_brace ();
1.1.1.3 root 1297: printf ("\tuae_u32 dst = ((src >> 16)&0xFFFF) | ((src&0xFFFF)<<16);\n");
1.1.1.5 root 1298: genflags (flag_logical, sz_long, "dst", "", "");
1.1.1.7 ! root 1299: genastore ("dst", curi->smode, "srcreg", sz_long, "src");
1.1 root 1300: break;
1301: case i_EXG:
1.1.1.7 ! root 1302: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1303: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
! 1304: genastore ("dst", curi->smode, "srcreg", curi->size, "src");
! 1305: genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1306: break;
1307: case i_EXT:
1.1.1.7 ! root 1308: genamode (curi->smode, "srcreg", sz_long, "src", 1, 0);
1.1 root 1309: start_brace ();
1.1.1.7 ! root 1310: switch (curi->size) {
1.1.1.3 root 1311: case sz_byte: printf ("\tuae_u32 dst = (uae_s32)(uae_s8)src;\n"); break;
1312: case sz_word: printf ("\tuae_u16 dst = (uae_s16)(uae_s8)src;\n"); break;
1313: case sz_long: printf ("\tuae_u32 dst = (uae_s32)(uae_s16)src;\n"); break;
1.1.1.5 root 1314: default: abort ();
1.1 root 1315: }
1.1.1.5 root 1316: genflags (flag_logical,
1.1.1.7 ! root 1317: curi->size == sz_word ? sz_word : sz_long, "dst", "", "");
! 1318: genastore ("dst", curi->smode, "srcreg",
! 1319: curi->size == sz_word ? sz_word : sz_long, "src");
1.1 root 1320: break;
1321: case i_MVMEL:
1.1.1.5 root 1322: genmovemel (opcode);
1.1 root 1323: break;
1324: case i_MVMLE:
1.1.1.5 root 1325: genmovemle (opcode);
1.1 root 1326: break;
1327: case i_TRAP:
1.1.1.7 ! root 1328: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
1.1.1.5 root 1329: sync_m68k_pc ();
1.1.1.3 root 1330: printf ("\tException(src+32,0);\n");
1331: m68k_pc_offset = 0;
1.1 root 1332: break;
1333: case i_MVR2USP:
1.1.1.7 ! root 1334: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
1.1.1.3 root 1335: printf ("\tregs.usp = src;\n");
1.1 root 1336: break;
1.1.1.3 root 1337: case i_MVUSP2R:
1.1.1.7 ! root 1338: genamode (curi->smode, "srcreg", curi->size, "src", 2, 0);
! 1339: genastore ("regs.usp", curi->smode, "srcreg", curi->size, "src");
1.1 root 1340: break;
1341: case i_RESET:
1.1.1.3 root 1342: printf ("\tcustomreset();\n");
1.1 root 1343: break;
1344: case i_NOP:
1345: break;
1346: case i_STOP:
1.1.1.7 ! root 1347: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
1.1.1.3 root 1348: printf ("\tregs.sr = src;\n");
1349: printf ("\tMakeFromSR();\n");
1350: printf ("\tm68k_setstopped(1);\n");
1.1 root 1351: break;
1352: case i_RTE:
1.1.1.3 root 1353: if (cpu_level == 0) {
1354: genamode (Aipi, "7", sz_word, "sr", 1, 0);
1355: genamode (Aipi, "7", sz_long, "pc", 1, 0);
1356: printf ("\tregs.sr = sr; m68k_setpc_rte(pc);\n");
1357: fill_prefetch_0 ();
1358: printf ("\tMakeFromSR();\n");
1359: } else {
1.1 root 1360: int old_brace_level = n_braces;
1.1.1.3 root 1361: if (next_cpu_level < 0)
1362: next_cpu_level = 0;
1363: printf ("\tuae_u16 newsr; uae_u32 newpc; for (;;) {\n");
1364: genamode (Aipi, "7", sz_word, "sr", 1, 0);
1365: genamode (Aipi, "7", sz_long, "pc", 1, 0);
1366: genamode (Aipi, "7", sz_word, "format", 1, 0);
1367: printf ("\tnewsr = sr; newpc = pc;\n");
1368: printf ("\tif ((format & 0xF000) == 0x0000) { break; }\n");
1369: printf ("\telse if ((format & 0xF000) == 0x1000) { ; }\n");
1370: printf ("\telse if ((format & 0xF000) == 0x2000) { m68k_areg(regs, 7) += 4; break; }\n");
1371: printf ("\telse if ((format & 0xF000) == 0x8000) { m68k_areg(regs, 7) += 50; break; }\n");
1372: printf ("\telse if ((format & 0xF000) == 0x9000) { m68k_areg(regs, 7) += 12; break; }\n");
1373: printf ("\telse if ((format & 0xF000) == 0xa000) { m68k_areg(regs, 7) += 24; break; }\n");
1374: printf ("\telse if ((format & 0xF000) == 0xb000) { m68k_areg(regs, 7) += 84; break; }\n");
1375: printf ("\telse { Exception(14,0); goto %s; }\n", endlabelstr);
1376: printf ("\tregs.sr = newsr; MakeFromSR();\n}\n");
1.1 root 1377: pop_braces (old_brace_level);
1.1.1.3 root 1378: printf ("\tregs.sr = newsr; MakeFromSR();\n");
1379: printf ("\tm68k_setpc_rte(newpc);\n");
1380: fill_prefetch_0 ();
1.1.1.5 root 1381: need_endlabel = 1;
1.1 root 1382: }
1.1.1.3 root 1383: /* PC is set and prefetch filled. */
1384: m68k_pc_offset = 0;
1.1 root 1385: break;
1386: case i_RTD:
1.1.1.3 root 1387: printf ("\tcompiler_flush_jsr_stack();\n");
1388: genamode (Aipi, "7", sz_long, "pc", 1, 0);
1.1.1.7 ! root 1389: genamode (curi->smode, "srcreg", curi->size, "offs", 1, 0);
1.1.1.3 root 1390: printf ("\tm68k_areg(regs, 7) += offs;\n");
1391: printf ("\tm68k_setpc_rte(pc);\n");
1392: fill_prefetch_0 ();
1393: /* PC is set and prefetch filled. */
1394: m68k_pc_offset = 0;
1.1 root 1395: break;
1396: case i_LINK:
1.1.1.3 root 1397: genamode (Apdi, "7", sz_long, "old", 2, 0);
1.1.1.7 ! root 1398: genamode (curi->smode, "srcreg", sz_long, "src", 1, 0);
1.1.1.3 root 1399: genastore ("src", Apdi, "7", sz_long, "old");
1.1.1.7 ! root 1400: genastore ("m68k_areg(regs, 7)", curi->smode, "srcreg", sz_long, "src");
! 1401: genamode (curi->dmode, "dstreg", curi->size, "offs", 1, 0);
1.1.1.3 root 1402: printf ("\tm68k_areg(regs, 7) += offs;\n");
1.1 root 1403: break;
1404: case i_UNLK:
1.1.1.7 ! root 1405: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
1.1.1.3 root 1406: printf ("\tm68k_areg(regs, 7) = src;\n");
1407: genamode (Aipi, "7", sz_long, "old", 1, 0);
1.1.1.7 ! root 1408: genastore ("old", curi->smode, "srcreg", curi->size, "src");
1.1 root 1409: break;
1410: case i_RTS:
1.1.1.3 root 1411: printf ("\tm68k_do_rts();\n");
1412: fill_prefetch_0 ();
1413: m68k_pc_offset = 0;
1.1 root 1414: break;
1415: case i_TRAPV:
1.1.1.3 root 1416: sync_m68k_pc ();
1.1.1.7 ! root 1417: printf ("\tif (GET_VFLG) { Exception(7,m68k_getpc()); goto %s; }\n", endlabelstr);
1.1.1.5 root 1418: need_endlabel = 1;
1.1 root 1419: break;
1.1.1.2 root 1420: case i_RTR:
1.1.1.3 root 1421: printf ("\tcompiler_flush_jsr_stack();\n");
1422: printf ("\tMakeSR();\n");
1423: genamode (Aipi, "7", sz_word, "sr", 1, 0);
1424: genamode (Aipi, "7", sz_long, "pc", 1, 0);
1425: printf ("\tregs.sr &= 0xFF00; sr &= 0xFF;\n");
1426: printf ("\tregs.sr |= sr; m68k_setpc(pc);\n");
1427: fill_prefetch_0 ();
1428: printf ("\tMakeFromSR();\n");
1429: m68k_pc_offset = 0;
1.1 root 1430: break;
1431: case i_JSR:
1.1.1.7 ! root 1432: genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
1.1.1.3 root 1433: printf ("\tm68k_do_jsr(m68k_getpc() + %d, srca);\n", m68k_pc_offset);
1434: fill_prefetch_0 ();
1435: m68k_pc_offset = 0;
1436: break;
1437: case i_JMP:
1.1.1.7 ! root 1438: genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
1.1.1.3 root 1439: printf ("\tm68k_setpc(srca);\n");
1440: fill_prefetch_0 ();
1441: m68k_pc_offset = 0;
1.1 root 1442: break;
1443: case i_BSR:
1.1.1.7 ! root 1444: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
1.1.1.3 root 1445: printf ("\tuae_s32 s = (uae_s32)src + 2;\n");
1446: if (using_exception_3) {
1447: printf ("\tif (src & 1) {\n");
1448: printf ("\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
1449: printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + s;\n");
1450: printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
1451: printf ("\t}\n");
1.1.1.5 root 1452: need_endlabel = 1;
1.1.1.3 root 1453: }
1454: printf ("\tm68k_do_bsr(m68k_getpc() + %d, s);\n", m68k_pc_offset);
1455: fill_prefetch_0 ();
1456: m68k_pc_offset = 0;
1.1 root 1457: break;
1458: case i_Bcc:
1.1.1.7 ! root 1459: if (curi->size == sz_long) {
1.1.1.3 root 1460: if (cpu_level < 2) {
1461: printf ("\tm68k_incpc(2);\n");
1.1.1.7 ! root 1462: printf ("\tif (!cctrue(%d)) goto %s;\n", curi->cc, endlabelstr);
1.1.1.3 root 1463: printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
1464: printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + 1;\n");
1465: printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
1.1.1.5 root 1466: need_endlabel = 1;
1.1.1.3 root 1467: } else {
1468: if (next_cpu_level < 1)
1469: next_cpu_level = 1;
1470: }
1471: }
1.1.1.7 ! root 1472: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1473: printf ("\tif (!cctrue(%d)) goto didnt_jump;\n", curi->cc);
1.1.1.3 root 1474: if (using_exception_3) {
1475: printf ("\tif (src & 1) {\n");
1476: printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
1477: printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + 2 + (uae_s32)src;\n");
1478: printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
1479: printf ("\t}\n");
1.1.1.5 root 1480: need_endlabel = 1;
1.1.1.3 root 1481: }
1.1 root 1482: #ifdef USE_COMPILER
1.1.1.3 root 1483: printf ("\tm68k_setpc_bcc(m68k_getpc() + 2 + (uae_s32)src);\n");
1.1 root 1484: #else
1.1.1.3 root 1485: printf ("\tm68k_incpc ((uae_s32)src + 2);\n");
1.1 root 1486: #endif
1.1.1.3 root 1487: fill_prefetch_0 ();
1488: printf ("\tgoto %s;\n", endlabelstr);
1489: printf ("didnt_jump:;\n");
1.1.1.5 root 1490: need_endlabel = 1;
1.1 root 1491: break;
1492: case i_LEA:
1.1.1.7 ! root 1493: genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
! 1494: genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
! 1495: genastore ("srca", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1496: break;
1497: case i_PEA:
1.1.1.7 ! root 1498: genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
1.1.1.3 root 1499: genamode (Apdi, "7", sz_long, "dst", 2, 0);
1500: genastore ("srca", Apdi, "7", sz_long, "dst");
1.1 root 1501: break;
1502: case i_DBcc:
1.1.1.7 ! root 1503: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1504: genamode (curi->dmode, "dstreg", curi->size, "offs", 1, 0);
1.1.1.3 root 1505:
1.1.1.7 ! root 1506: printf ("\tif (!cctrue(%d)) {\n", curi->cc);
! 1507: genastore ("(src-1)", curi->smode, "srcreg", curi->size, "src");
1.1.1.3 root 1508:
1509: printf ("\t\tif (src) {\n");
1510: if (using_exception_3) {
1511: printf ("\t\t\tif (offs & 1) {\n");
1512: printf ("\t\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
1513: printf ("\t\t\tlast_fault_for_exception_3 = m68k_getpc() + 2 + (uae_s32)offs + 2;\n");
1514: printf ("\t\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
1515: printf ("\t\t}\n");
1.1.1.5 root 1516: need_endlabel = 1;
1.1.1.3 root 1517: }
1.1 root 1518: #ifdef USE_COMPILER
1.1.1.3 root 1519: printf ("\t\t\tm68k_setpc_bcc(m68k_getpc() + (uae_s32)offs + 2);\n");
1.1 root 1520: #else
1.1.1.3 root 1521: printf ("\t\t\tm68k_incpc((uae_s32)offs + 2);\n");
1.1 root 1522: #endif
1.1.1.3 root 1523: fill_prefetch_0 ();
1524: printf ("\t\tgoto %s;\n", endlabelstr);
1525: printf ("\t\t}\n");
1526: printf ("\t}\n");
1.1.1.5 root 1527: need_endlabel = 1;
1.1 root 1528: break;
1.1.1.3 root 1529: case i_Scc:
1.1.1.7 ! root 1530: genamode (curi->smode, "srcreg", curi->size, "src", 2, 0);
1.1 root 1531: start_brace ();
1.1.1.7 ! root 1532: printf ("\tint val = cctrue(%d) ? 0xff : 0;\n", curi->cc);
! 1533: genastore ("val", curi->smode, "srcreg", curi->size, "src");
1.1 root 1534: break;
1535: case i_DIVU:
1.1.1.3 root 1536: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.7 ! root 1537: genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
! 1538: genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
1.1.1.3 root 1539: printf ("\tif(src == 0) { Exception(5,oldpc); goto %s; } else {\n", endlabelstr);
1540: printf ("\tuae_u32 newv = (uae_u32)dst / (uae_u32)(uae_u16)src;\n");
1541: printf ("\tuae_u32 rem = (uae_u32)dst %% (uae_u32)(uae_u16)src;\n");
1.1 root 1542: /* The N flag appears to be set each time there is an overflow.
1543: * Weird. */
1.1.1.7 ! root 1544: printf ("\tif (newv > 0xffff) { SET_VFLG (1); SET_NFLG (1); SET_CFLG (0); } else\n\t{\n");
1.1.1.5 root 1545: genflags (flag_logical, sz_word, "newv", "", "");
1.1.1.3 root 1546: printf ("\tnewv = (newv & 0xffff) | ((uae_u32)rem << 16);\n");
1.1.1.7 ! root 1547: genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
1.1.1.3 root 1548: printf ("\t}\n");
1549: printf ("\t}\n");
1.1.1.5 root 1550: insn_n_cycles += 68;
1551: need_endlabel = 1;
1.1.1.3 root 1552: break;
1553: case i_DIVS:
1554: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.7 ! root 1555: genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
! 1556: genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
1.1.1.3 root 1557: printf ("\tif(src == 0) { Exception(5,oldpc); goto %s; } else {\n", endlabelstr);
1558: printf ("\tuae_s32 newv = (uae_s32)dst / (uae_s32)(uae_s16)src;\n");
1559: printf ("\tuae_u16 rem = (uae_s32)dst %% (uae_s32)(uae_s16)src;\n");
1.1.1.7 ! root 1560: printf ("\tif ((newv & 0xffff8000) != 0 && (newv & 0xffff8000) != 0xffff8000) { SET_VFLG (1); SET_NFLG (1); SET_CFLG (0); } else\n\t{\n");
1.1.1.3 root 1561: printf ("\tif (((uae_s16)rem < 0) != ((uae_s32)dst < 0)) rem = -rem;\n");
1.1.1.5 root 1562: genflags (flag_logical, sz_word, "newv", "", "");
1.1.1.3 root 1563: printf ("\tnewv = (newv & 0xffff) | ((uae_u32)rem << 16);\n");
1.1.1.7 ! root 1564: genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
1.1.1.3 root 1565: printf ("\t}\n");
1566: printf ("\t}\n");
1.1.1.5 root 1567: insn_n_cycles += 72;
1568: need_endlabel = 1;
1.1.1.3 root 1569: break;
1570: case i_MULU:
1.1.1.7 ! root 1571: genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
! 1572: genamode (curi->dmode, "dstreg", sz_word, "dst", 1, 0);
1.1 root 1573: start_brace ();
1.1.1.3 root 1574: printf ("\tuae_u32 newv = (uae_u32)(uae_u16)dst * (uae_u32)(uae_u16)src;\n");
1.1.1.5 root 1575: genflags (flag_logical, sz_long, "newv", "", "");
1.1.1.7 ! root 1576: genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
1.1.1.5 root 1577: insn_n_cycles += 32;
1.1 root 1578: break;
1579: case i_MULS:
1.1.1.7 ! root 1580: genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
! 1581: genamode (curi->dmode, "dstreg", sz_word, "dst", 1, 0);
1.1 root 1582: start_brace ();
1.1.1.3 root 1583: printf ("\tuae_u32 newv = (uae_s32)(uae_s16)dst * (uae_s32)(uae_s16)src;\n");
1.1.1.5 root 1584: genflags (flag_logical, sz_long, "newv", "", "");
1.1.1.7 ! root 1585: genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
1.1.1.5 root 1586: insn_n_cycles += 32;
1.1 root 1587: break;
1588: case i_CHK:
1.1.1.3 root 1589: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.7 ! root 1590: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 1591: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
! 1592: printf ("\tif ((uae_s32)dst < 0) { SET_NFLG (1); Exception(6,oldpc); goto %s; }\n", endlabelstr);
! 1593: printf ("\telse if (dst > src) { SET_NFLG (0); Exception(6,oldpc); goto %s; }\n", endlabelstr);
1.1.1.5 root 1594: need_endlabel = 1;
1.1 root 1595: break;
1.1.1.3 root 1596:
1.1 root 1597: case i_CHK2:
1.1.1.3 root 1598: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.7 ! root 1599: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
! 1600: genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
1.1.1.3 root 1601: printf ("\t{uae_s32 upper,lower,reg = regs.regs[(extra >> 12) & 15];\n");
1.1.1.7 ! root 1602: switch (curi->size) {
1.1.1.3 root 1603: case sz_byte:
1604: printf ("\tlower=(uae_s32)(uae_s8)get_byte(dsta); upper = (uae_s32)(uae_s8)get_byte(dsta+1);\n");
1605: printf ("\tif ((extra & 0x8000) == 0) reg = (uae_s32)(uae_s8)reg;\n");
1606: break;
1607: case sz_word:
1608: printf ("\tlower=(uae_s32)(uae_s16)get_word(dsta); upper = (uae_s32)(uae_s16)get_word(dsta+2);\n");
1609: printf ("\tif ((extra & 0x8000) == 0) reg = (uae_s32)(uae_s16)reg;\n");
1610: break;
1611: case sz_long:
1612: printf ("\tlower=get_long(dsta); upper = get_long(dsta+4);\n");
1613: break;
1614: default:
1.1.1.5 root 1615: abort ();
1.1.1.3 root 1616: }
1.1.1.7 ! root 1617: printf ("\tSET_ZFLG (upper == reg || lower == reg);\n");
! 1618: printf ("\tSET_CFLG (lower <= upper ? reg < lower || reg > upper : reg > upper || reg < lower);\n");
! 1619: printf ("\tif ((extra & 0x800) && GET_CFLG) { Exception(6,oldpc); goto %s; }\n}\n", endlabelstr);
1.1.1.5 root 1620: need_endlabel = 1;
1.1.1.3 root 1621: break;
1622:
1623: case i_ASR:
1.1.1.7 ! root 1624: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
! 1625: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
1.1.1.3 root 1626: start_brace ();
1.1.1.7 ! root 1627: switch (curi->size) {
! 1628: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
! 1629: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1.1.1.3 root 1630: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1631: default: abort ();
1.1 root 1632: }
1.1.1.7 ! root 1633: printf ("\tuae_u32 sign = (%s & val) >> %d;\n", cmask (curi->size), bit_size (curi->size) - 1);
1.1.1.3 root 1634: printf ("\tcnt &= 63;\n");
1.1.1.7 ! root 1635: printf ("\tCLEAR_CZNV;\n");
! 1636: printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
! 1637: printf ("\t\tval = %s & (uae_u32)-sign;\n", bit_mask (curi->size));
! 1638: printf ("\t\tSET_CFLG (sign);\n");
! 1639: duplicate_carry ();
! 1640: if (source_is_imm1_8 (curi))
! 1641: printf ("\t} else {\n");
! 1642: else
! 1643: printf ("\t} else if (cnt > 0) {\n");
! 1644: printf ("\t\tval >>= cnt - 1;\n");
! 1645: printf ("\t\tSET_CFLG (val & 1);\n");
! 1646: duplicate_carry ();
! 1647: printf ("\t\tval >>= 1;\n");
! 1648: printf ("\t\tval |= (%s << (%d - cnt)) & (uae_u32)-sign;\n",
! 1649: bit_mask (curi->size),
! 1650: bit_size (curi->size));
! 1651: printf ("\t\tval &= %s;\n", bit_mask (curi->size));
! 1652: printf ("\t}\n");
! 1653: genflags (flag_logical_noclobber, curi->size, "val", "", "");
! 1654: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1655: break;
1656: case i_ASL:
1.1.1.7 ! root 1657: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
! 1658: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
1.1 root 1659: start_brace ();
1.1.1.7 ! root 1660: switch (curi->size) {
! 1661: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
! 1662: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1.1.1.3 root 1663: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1664: default: abort ();
1.1 root 1665: }
1.1.1.3 root 1666: printf ("\tcnt &= 63;\n");
1.1.1.7 ! root 1667: printf ("\tCLEAR_CZNV;\n");
! 1668: printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
! 1669: printf ("\t\tSET_VFLG (val != 0);\n");
! 1670: printf ("\t\tSET_CFLG (cnt == %d ? val & 1 : 0);\n",
! 1671: bit_size (curi->size));
! 1672: duplicate_carry ();
1.1.1.3 root 1673: printf ("\t\tval = 0;\n");
1.1.1.7 ! root 1674: if (source_is_imm1_8 (curi))
! 1675: printf ("\t} else {\n");
! 1676: else
! 1677: printf ("\t} else if (cnt > 0) {\n");
1.1.1.3 root 1678: printf ("\t\tuae_u32 mask = (%s << (%d - cnt)) & %s;\n",
1.1.1.7 ! root 1679: bit_mask (curi->size),
! 1680: bit_size (curi->size) - 1,
! 1681: bit_mask (curi->size));
! 1682: printf ("\t\tSET_VFLG ((val & mask) != mask && (val & mask) != 0);\n");
! 1683: printf ("\t\tval <<= cnt - 1;\n");
! 1684: printf ("\t\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1);
! 1685: duplicate_carry ();
! 1686: printf ("\t\tval <<= 1;\n");
! 1687: printf ("\t\tval &= %s;\n", bit_mask (curi->size));
! 1688: printf ("\t}\n");
! 1689: genflags (flag_logical_noclobber, curi->size, "val", "", "");
! 1690: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1691: break;
1692: case i_LSR:
1.1.1.7 ! root 1693: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
! 1694: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
1.1 root 1695: start_brace ();
1.1.1.7 ! root 1696: switch (curi->size) {
! 1697: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
! 1698: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1.1.1.3 root 1699: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1700: default: abort ();
1.1 root 1701: }
1.1.1.3 root 1702: printf ("\tcnt &= 63;\n");
1.1.1.7 ! root 1703: printf ("\tCLEAR_CZNV;\n");
! 1704: printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
! 1705: printf ("\t\tSET_CFLG ((cnt == %d) & (val >> %d));\n",
! 1706: bit_size (curi->size), bit_size (curi->size) - 1);
! 1707: duplicate_carry ();
1.1.1.3 root 1708: printf ("\t\tval = 0;\n");
1.1.1.7 ! root 1709: if (source_is_imm1_8 (curi))
! 1710: printf ("\t} else {\n");
! 1711: else
! 1712: printf ("\t} else if (cnt > 0) {\n");
! 1713: printf ("\t\tval >>= cnt - 1;\n");
! 1714: printf ("\t\tSET_CFLG (val & 1);\n");
! 1715: duplicate_carry ();
! 1716: printf ("\t\tval >>= 1;\n");
! 1717: printf ("\t}\n");
! 1718: genflags (flag_logical_noclobber, curi->size, "val", "", "");
! 1719: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1720: break;
1721: case i_LSL:
1.1.1.7 ! root 1722: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
! 1723: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
1.1 root 1724: start_brace ();
1.1.1.7 ! root 1725: switch (curi->size) {
! 1726: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
! 1727: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1.1.1.3 root 1728: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1729: default: abort ();
1.1 root 1730: }
1.1.1.3 root 1731: printf ("\tcnt &= 63;\n");
1.1.1.7 ! root 1732: printf ("\tCLEAR_CZNV;\n");
! 1733: printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
! 1734: printf ("\t\tSET_CFLG (cnt == %d ? val & 1 : 0);\n",
! 1735: bit_size (curi->size));
! 1736: duplicate_carry ();
1.1.1.3 root 1737: printf ("\t\tval = 0;\n");
1.1.1.7 ! root 1738: if (source_is_imm1_8 (curi))
! 1739: printf ("\t} else {\n");
! 1740: else
! 1741: printf ("\t} else if (cnt > 0) {\n");
! 1742: printf ("\t\tval <<= (cnt - 1);\n");
! 1743: printf ("\t\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1);
! 1744: duplicate_carry ();
! 1745: printf ("\t\tval <<= 1;\n");
! 1746: printf ("\tval &= %s;\n", bit_mask (curi->size));
! 1747: printf ("\t}\n");
! 1748: genflags (flag_logical_noclobber, curi->size, "val", "", "");
! 1749: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1750: break;
1751: case i_ROL:
1.1.1.7 ! root 1752: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
! 1753: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
1.1 root 1754: start_brace ();
1.1.1.7 ! root 1755: switch (curi->size) {
! 1756: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
! 1757: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1.1.1.3 root 1758: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1759: default: abort ();
1.1 root 1760: }
1.1.1.3 root 1761: printf ("\tcnt &= 63;\n");
1.1.1.7 ! root 1762: printf ("\tCLEAR_CZNV;\n");
! 1763: if (source_is_imm1_8 (curi))
! 1764: printf ("{");
! 1765: else
! 1766: printf ("\tif (cnt > 0) {\n");
! 1767: printf ("\tuae_u32 loval;\n");
! 1768: printf ("\tcnt &= %d;\n", bit_size (curi->size) - 1);
! 1769: printf ("\tloval = val >> (%d - cnt);\n", bit_size (curi->size));
! 1770: printf ("\tval <<= cnt;\n");
! 1771: printf ("\tval |= loval;\n");
! 1772: printf ("\tval &= %s;\n", bit_mask (curi->size));
! 1773: printf ("\tSET_CFLG (val & 1);\n");
! 1774: printf ("}\n");
! 1775: genflags (flag_logical_noclobber, curi->size, "val", "", "");
! 1776: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1777: break;
1778: case i_ROR:
1.1.1.7 ! root 1779: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
! 1780: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
1.1 root 1781: start_brace ();
1.1.1.7 ! root 1782: switch (curi->size) {
! 1783: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
! 1784: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1.1.1.3 root 1785: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1786: default: abort ();
1.1 root 1787: }
1.1.1.3 root 1788: printf ("\tcnt &= 63;\n");
1.1.1.7 ! root 1789: printf ("\tCLEAR_CZNV;\n");
! 1790: if (source_is_imm1_8 (curi))
! 1791: printf ("{");
! 1792: else
! 1793: printf ("\tif (cnt > 0) {");
! 1794: printf ("\tuae_u32 hival;\n");
! 1795: printf ("\tcnt &= %d;\n", bit_size (curi->size) - 1);
! 1796: printf ("\thival = val << (%d - cnt);\n", bit_size (curi->size));
! 1797: printf ("\tval >>= cnt;\n");
! 1798: printf ("\tval |= hival;\n");
! 1799: printf ("\tval &= %s;\n", bit_mask (curi->size));
! 1800: printf ("\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1);
1.1.1.3 root 1801: printf ("\t}\n");
1.1.1.7 ! root 1802: genflags (flag_logical_noclobber, curi->size, "val", "", "");
! 1803: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1804: break;
1.1.1.3 root 1805: case i_ROXL:
1.1.1.7 ! root 1806: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
! 1807: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
1.1 root 1808: start_brace ();
1.1.1.7 ! root 1809: switch (curi->size) {
! 1810: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
! 1811: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1.1.1.3 root 1812: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1813: default: abort ();
1.1 root 1814: }
1.1.1.3 root 1815: printf ("\tcnt &= 63;\n");
1.1.1.7 ! root 1816: printf ("\tCLEAR_CZNV;\n");
! 1817: if (! source_is_imm1_8 (curi))
! 1818: force_range_for_rox ("cnt", curi->size);
! 1819: if (source_is_imm1_8 (curi))
! 1820: printf ("{");
! 1821: else
! 1822: printf ("\tif (cnt > 0) {\n");
! 1823: printf ("\tcnt--;\n");
! 1824: printf ("\t{\n\tuae_u32 carry;\n");
! 1825: printf ("\tuae_u32 loval = val >> (%d - cnt);\n", bit_size (curi->size) - 1);
! 1826: printf ("\tcarry = loval & 1;\n");
! 1827: printf ("\tval = (((val << 1) | GET_XFLG) << cnt) | (loval >> 1);\n");
! 1828: printf ("\tSET_XFLG (carry);\n");
! 1829: printf ("\tval &= %s;\n", bit_mask (curi->size));
! 1830: printf ("\t} }\n");
! 1831: printf ("\tSET_CFLG (GET_XFLG);\n");
! 1832: genflags (flag_logical_noclobber, curi->size, "val", "", "");
! 1833: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1834: break;
1835: case i_ROXR:
1.1.1.7 ! root 1836: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
! 1837: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
1.1 root 1838: start_brace ();
1.1.1.7 ! root 1839: switch (curi->size) {
! 1840: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
! 1841: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1.1.1.3 root 1842: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1843: default: abort ();
1.1 root 1844: }
1.1.1.3 root 1845: printf ("\tcnt &= 63;\n");
1.1.1.7 ! root 1846: printf ("\tCLEAR_CZNV;\n");
! 1847: if (! source_is_imm1_8 (curi))
! 1848: force_range_for_rox ("cnt", curi->size);
! 1849: if (source_is_imm1_8 (curi))
! 1850: printf ("{");
! 1851: else
! 1852: printf ("\tif (cnt > 0) {\n");
! 1853: printf ("\tcnt--;\n");
! 1854: printf ("\t{\n\tuae_u32 carry;\n");
! 1855: printf ("\tuae_u32 hival = (val << 1) | GET_XFLG;\n");
! 1856: printf ("\thival <<= (%d - cnt);\n", bit_size (curi->size) - 1);
! 1857: printf ("\tval >>= cnt;\n");
! 1858: printf ("\tcarry = val & 1;\n");
! 1859: printf ("\tval >>= 1;\n");
! 1860: printf ("\tval |= hival;\n");
! 1861: printf ("\tSET_XFLG (carry);\n");
! 1862: printf ("\tval &= %s;\n", bit_mask (curi->size));
! 1863: printf ("\t} }\n");
! 1864: printf ("\tSET_CFLG (GET_XFLG);\n");
! 1865: genflags (flag_logical_noclobber, curi->size, "val", "", "");
! 1866: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1867: break;
1868: case i_ASRW:
1.1.1.7 ! root 1869: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
1.1 root 1870: start_brace ();
1.1.1.7 ! root 1871: switch (curi->size) {
! 1872: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
! 1873: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1.1.1.3 root 1874: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1875: default: abort ();
1.1 root 1876: }
1.1.1.7 ! root 1877: printf ("\tuae_u32 sign = %s & val;\n", cmask (curi->size));
! 1878: printf ("\tuae_u32 cflg = val & 1;\n");
! 1879: printf ("\tval = (val >> 1) | sign;\n");
! 1880: genflags (flag_logical, curi->size, "val", "", "");
! 1881: printf ("\tSET_CFLG (cflg);\n");
! 1882: duplicate_carry ();
! 1883: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 1884: break;
1885: case i_ASLW:
1.1.1.7 ! root 1886: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
1.1 root 1887: start_brace ();
1.1.1.7 ! root 1888: switch (curi->size) {
! 1889: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
! 1890: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1.1.1.3 root 1891: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1892: default: abort ();
1.1 root 1893: }
1.1.1.7 ! root 1894: printf ("\tuae_u32 sign = %s & val;\n", cmask (curi->size));
! 1895: printf ("\tuae_u32 sign2;\n");
! 1896: printf ("\tval <<= 1;\n");
! 1897: genflags (flag_logical, curi->size, "val", "", "");
! 1898: printf ("\tsign2 = %s & val;\n", cmask (curi->size));
! 1899: printf ("\tSET_CFLG (sign != 0);\n");
! 1900: duplicate_carry ();
! 1901:
! 1902: printf ("\tSET_VFLG (GET_VFLG | (sign2 != sign));\n");
! 1903: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 1904: break;
1905: case i_LSRW:
1.1.1.7 ! root 1906: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
1.1 root 1907: start_brace ();
1.1.1.7 ! root 1908: switch (curi->size) {
! 1909: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
! 1910: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1.1.1.3 root 1911: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1912: default: abort ();
1.1 root 1913: }
1.1.1.7 ! root 1914: printf ("\tuae_u32 carry = val & 1;\n");
1.1.1.3 root 1915: printf ("\tval >>= 1;\n");
1.1.1.7 ! root 1916: genflags (flag_logical, curi->size, "val", "", "");
! 1917: printf ("SET_CFLG (carry);\n");
! 1918: duplicate_carry ();
! 1919: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 1920: break;
1921: case i_LSLW:
1.1.1.7 ! root 1922: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
1.1 root 1923: start_brace ();
1.1.1.7 ! root 1924: switch (curi->size) {
1.1.1.3 root 1925: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1926: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1927: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1928: default: abort ();
1.1 root 1929: }
1.1.1.7 ! root 1930: printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size));
1.1.1.3 root 1931: printf ("\tval <<= 1;\n");
1.1.1.7 ! root 1932: genflags (flag_logical, curi->size, "val", "", "");
! 1933: printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1);
! 1934: duplicate_carry ();
! 1935: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 1936: break;
1937: case i_ROLW:
1.1.1.7 ! root 1938: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
1.1 root 1939: start_brace ();
1.1.1.7 ! root 1940: switch (curi->size) {
1.1.1.3 root 1941: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1942: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1943: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1944: default: abort ();
1.1 root 1945: }
1.1.1.7 ! root 1946: printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size));
1.1.1.3 root 1947: printf ("\tval <<= 1;\n");
1.1.1.7 ! root 1948: printf ("\tif (carry) val |= 1;\n");
! 1949: genflags (flag_logical, curi->size, "val", "", "");
! 1950: printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1);
! 1951: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 1952: break;
1953: case i_RORW:
1.1.1.7 ! root 1954: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
1.1 root 1955: start_brace ();
1.1.1.7 ! root 1956: switch (curi->size) {
1.1.1.3 root 1957: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1958: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1959: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1960: default: abort ();
1.1 root 1961: }
1.1.1.7 ! root 1962: printf ("\tuae_u32 carry = val & 1;\n");
1.1.1.3 root 1963: printf ("\tval >>= 1;\n");
1.1.1.7 ! root 1964: printf ("\tif (carry) val |= %s;\n", cmask (curi->size));
! 1965: genflags (flag_logical, curi->size, "val", "", "");
! 1966: printf ("SET_CFLG (carry);\n");
! 1967: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 1968: break;
1969: case i_ROXLW:
1.1.1.7 ! root 1970: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
1.1 root 1971: start_brace ();
1.1.1.7 ! root 1972: switch (curi->size) {
1.1.1.3 root 1973: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1974: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1975: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1976: default: abort ();
1.1 root 1977: }
1.1.1.7 ! root 1978: printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size));
1.1.1.3 root 1979: printf ("\tval <<= 1;\n");
1.1.1.7 ! root 1980: printf ("\tif (GET_XFLG) val |= 1;\n");
! 1981: genflags (flag_logical, curi->size, "val", "", "");
! 1982: printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1);
! 1983: duplicate_carry ();
! 1984: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 1985: break;
1986: case i_ROXRW:
1.1.1.7 ! root 1987: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
1.1 root 1988: start_brace ();
1.1.1.7 ! root 1989: switch (curi->size) {
1.1.1.3 root 1990: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
1991: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
1992: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1.1.1.5 root 1993: default: abort ();
1.1 root 1994: }
1.1.1.7 ! root 1995: printf ("\tuae_u32 carry = val & 1;\n");
1.1.1.3 root 1996: printf ("\tval >>= 1;\n");
1.1.1.7 ! root 1997: printf ("\tif (GET_XFLG) val |= %s;\n", cmask (curi->size));
! 1998: genflags (flag_logical, curi->size, "val", "", "");
! 1999: printf ("SET_CFLG (carry);\n");
! 2000: duplicate_carry ();
! 2001: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 2002: break;
2003: case i_MOVEC2:
1.1.1.7 ! root 2004: genamode (curi->smode, "srcreg", curi->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_movec2(src & 0xFFF, regp);\n");
1.1 root 2009: break;
2010: case i_MOVE2C:
1.1.1.7 ! root 2011: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
1.1.1.5 root 2012: start_brace ();
1.1.1.3 root 2013: printf ("\tint regno = (src >> 12) & 15;\n");
2014: printf ("\tuae_u32 *regp = regs.regs + regno;\n");
2015: printf ("\tm68k_move2c(src & 0xFFF, regp);\n");
1.1 root 2016: break;
2017: case i_CAS:
2018: {
2019: int old_brace_level;
1.1.1.7 ! root 2020: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 2021: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
1.1.1.5 root 2022: start_brace ();
1.1.1.3 root 2023: printf ("\tint ru = (src >> 6) & 7;\n");
2024: printf ("\tint rc = src & 7;\n");
1.1.1.7 ! root 2025: genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, rc)", "dst");
! 2026: printf ("\tif (GET_ZFLG)");
1.1 root 2027: old_brace_level = n_braces;
2028: start_brace ();
1.1.1.7 ! root 2029: genastore ("(m68k_dreg(regs, ru))", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 2030: pop_braces (old_brace_level);
1.1.1.3 root 2031: printf ("else");
1.1 root 2032: start_brace ();
1.1.1.3 root 2033: printf ("m68k_dreg(regs, rc) = dst;\n");
1.1 root 2034: pop_braces (old_brace_level);
2035: }
2036: break;
2037: case i_CAS2:
1.1.1.7 ! root 2038: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
1.1.1.3 root 2039: printf ("\tuae_u32 rn1 = regs.regs[(extra >> 28) & 7];\n");
2040: printf ("\tuae_u32 rn2 = regs.regs[(extra >> 12) & 7];\n");
1.1.1.7 ! root 2041: if (curi->size == sz_word) {
1.1.1.5 root 2042: int old_brace_level = n_braces;
2043: printf ("\tuae_u16 dst1 = get_word(rn1), dst2 = get_word(rn2);\n");
1.1.1.7 ! root 2044: genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1");
! 2045: printf ("\tif (GET_ZFLG) {\n");
! 2046: genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, extra & 7)", "dst2");
! 2047: printf ("\tif (GET_ZFLG) {\n");
1.1.1.5 root 2048: printf ("\tput_word(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n");
2049: printf ("\tput_word(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n");
2050: printf ("\t}}\n");
2051: pop_braces (old_brace_level);
1.1.1.7 ! root 2052: printf ("\tif (! GET_ZFLG) {\n");
1.1.1.5 root 2053: printf ("\tm68k_dreg(regs, (extra >> 22) & 7) = (m68k_dreg(regs, (extra >> 22) & 7) & ~0xffff) | (dst1 & 0xffff);\n");
2054: printf ("\tm68k_dreg(regs, (extra >> 6) & 7) = (m68k_dreg(regs, (extra >> 6) & 7) & ~0xffff) | (dst2 & 0xffff);\n");
2055: printf ("\t}\n");
1.1 root 2056: } else {
1.1.1.5 root 2057: int old_brace_level = n_braces;
2058: printf ("\tuae_u32 dst1 = get_long(rn1), dst2 = get_long(rn2);\n");
1.1.1.7 ! root 2059: genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1");
! 2060: printf ("\tif (GET_ZFLG) {\n");
! 2061: genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, extra & 7)", "dst2");
! 2062: printf ("\tif (GET_ZFLG) {\n");
1.1.1.5 root 2063: printf ("\tput_long(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n");
2064: printf ("\tput_long(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n");
2065: printf ("\t}}\n");
2066: pop_braces (old_brace_level);
1.1.1.7 ! root 2067: printf ("\tif (! GET_ZFLG) {\n");
1.1.1.5 root 2068: printf ("\tm68k_dreg(regs, (extra >> 22) & 7) = dst1;\n");
2069: printf ("\tm68k_dreg(regs, (extra >> 6) & 7) = dst2;\n");
2070: printf ("\t}\n");
1.1 root 2071: }
2072: break;
1.1.1.5 root 2073: case i_MOVES: /* ignore DFC and SFC because we have no MMU */
1.1 root 2074: {
2075: int old_brace_level;
1.1.1.7 ! root 2076: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
1.1.1.3 root 2077: printf ("\tif (extra & 0x800)\n");
1.1 root 2078: old_brace_level = n_braces;
2079: start_brace ();
1.1.1.3 root 2080: printf ("\tuae_u32 src = regs.regs[(extra >> 12) & 15];\n");
1.1.1.7 ! root 2081: genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
! 2082: genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 2083: pop_braces (old_brace_level);
1.1.1.3 root 2084: printf ("else");
1.1 root 2085: start_brace ();
1.1.1.7 ! root 2086: genamode (curi->dmode, "dstreg", curi->size, "src", 1, 0);
1.1.1.3 root 2087: printf ("\tif (extra & 0x8000) {\n");
1.1.1.7 ! root 2088: switch (curi->size) {
1.1.1.3 root 2089: case sz_byte: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = (uae_s32)(uae_s8)src;\n"); break;
2090: case sz_word: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = (uae_s32)(uae_s16)src;\n"); break;
2091: case sz_long: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = src;\n"); break;
1.1.1.5 root 2092: default: abort ();
1.1 root 2093: }
1.1.1.3 root 2094: printf ("\t} else {\n");
1.1.1.7 ! root 2095: genastore ("src", Dreg, "(extra >> 12) & 7", curi->size, "");
1.1.1.3 root 2096: printf ("\t}\n");
1.1 root 2097: pop_braces (old_brace_level);
2098: }
2099: break;
1.1.1.5 root 2100: case i_BKPT: /* only needed for hardware emulators */
2101: sync_m68k_pc ();
1.1.1.3 root 2102: printf ("\top_illg(opcode);\n");
1.1 root 2103: break;
1.1.1.5 root 2104: case i_CALLM: /* not present in 68030 */
2105: sync_m68k_pc ();
1.1.1.3 root 2106: printf ("\top_illg(opcode);\n");
1.1 root 2107: break;
1.1.1.5 root 2108: case i_RTM: /* not present in 68030 */
2109: sync_m68k_pc ();
1.1.1.3 root 2110: printf ("\top_illg(opcode);\n");
1.1 root 2111: break;
2112: case i_TRAPcc:
1.1.1.7 ! root 2113: if (curi->smode != am_unknown && curi->smode != am_illg)
! 2114: genamode (curi->smode, "srcreg", curi->size, "dummy", 1, 0);
! 2115: printf ("\tif (cctrue(%d)) { Exception(7,m68k_getpc()); goto %s; }\n", curi->cc, endlabelstr);
1.1.1.5 root 2116: need_endlabel = 1;
1.1 root 2117: break;
2118: case i_DIVL:
1.1.1.3 root 2119: sync_m68k_pc ();
2120: start_brace ();
2121: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.7 ! root 2122: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
! 2123: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
1.1.1.5 root 2124: sync_m68k_pc ();
1.1.1.3 root 2125: printf ("\tm68k_divl(opcode, dst, extra, oldpc);\n");
1.1 root 2126: break;
2127: case i_MULL:
1.1.1.7 ! root 2128: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
! 2129: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
1.1.1.5 root 2130: sync_m68k_pc ();
1.1.1.3 root 2131: printf ("\tm68k_mull(opcode, dst, extra);\n");
1.1 root 2132: break;
2133: case i_BFTST:
2134: case i_BFEXTU:
2135: case i_BFCHG:
2136: case i_BFEXTS:
2137: case i_BFCLR:
2138: case i_BFFFO:
2139: case i_BFSET:
2140: case i_BFINS:
1.1.1.7 ! root 2141: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
! 2142: genamode (curi->dmode, "dstreg", sz_long, "dst", 2, 0);
1.1.1.5 root 2143: start_brace ();
1.1.1.3 root 2144: printf ("\tuae_s32 offset = extra & 0x800 ? m68k_dreg(regs, (extra >> 6) & 7) : (extra >> 6) & 0x1f;\n");
2145: printf ("\tint width = (((extra & 0x20 ? m68k_dreg(regs, extra & 7) : extra) -1) & 0x1f) +1;\n");
1.1.1.7 ! root 2146: if (curi->dmode == Dreg) {
1.1.1.3 root 2147: printf ("\tuae_u32 tmp = m68k_dreg(regs, dstreg) << (offset & 0x1f);\n");
2148: } else {
2149: printf ("\tuae_u32 tmp,bf0,bf1;\n");
2150: printf ("\tdsta += (offset >> 3) | (offset & 0x80000000 ? ~0x1fffffff : 0);\n");
2151: printf ("\tbf0 = get_long(dsta);bf1 = get_byte(dsta+4) & 0xff;\n");
2152: printf ("\ttmp = (bf0 << (offset & 7)) | (bf1 >> (8 - (offset & 7)));\n");
2153: }
2154: printf ("\ttmp >>= (32 - width);\n");
1.1.1.7 ! root 2155: printf ("\tSET_NFLG (tmp & (1 << (width-1)) ? 1 : 0);\n");
! 2156: printf ("\tSET_ZFLG (tmp == 0); SET_VFLG (0); SET_CFLG (0);\n");
! 2157: switch (curi->mnemo) {
1.1.1.3 root 2158: case i_BFTST:
2159: break;
2160: case i_BFEXTU:
2161: printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n");
2162: break;
2163: case i_BFCHG:
2164: printf ("\ttmp = ~tmp;\n");
2165: break;
2166: case i_BFEXTS:
1.1.1.7 ! root 2167: printf ("\tif (GET_NFLG) tmp |= width == 32 ? 0 : (-1 << width);\n");
1.1.1.3 root 2168: printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n");
2169: break;
2170: case i_BFCLR:
2171: printf ("\ttmp = 0;\n");
2172: break;
2173: case i_BFFFO:
2174: printf ("\t{ uae_u32 mask = 1 << (width-1);\n");
2175: printf ("\twhile (mask) { if (tmp & mask) break; mask >>= 1; offset++; }}\n");
2176: printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = offset;\n");
2177: break;
2178: case i_BFSET:
2179: printf ("\ttmp = 0xffffffff;\n");
2180: break;
2181: case i_BFINS:
2182: printf ("\ttmp = m68k_dreg(regs, (extra >> 12) & 7);\n");
2183: break;
2184: default:
2185: break;
1.1 root 2186: }
1.1.1.7 ! root 2187: if (curi->mnemo == i_BFCHG
! 2188: || curi->mnemo == i_BFCLR
! 2189: || curi->mnemo == i_BFSET
! 2190: || curi->mnemo == i_BFINS)
1.1.1.5 root 2191: {
2192: printf ("\ttmp <<= (32 - width);\n");
1.1.1.7 ! root 2193: if (curi->dmode == Dreg) {
1.1.1.5 root 2194: printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & ((offset & 0x1f) == 0 ? 0 :\n");
2195: printf ("\t\t(0xffffffff << (32 - (offset & 0x1f))))) |\n");
2196: printf ("\t\t(tmp >> (offset & 0x1f)) |\n");
2197: printf ("\t\t(((offset & 0x1f) + width) >= 32 ? 0 :\n");
2198: printf (" (m68k_dreg(regs, dstreg) & ((uae_u32)0xffffffff >> ((offset & 0x1f) + width))));\n");
2199: } else {
2200: printf ("\tbf0 = (bf0 & (0xff000000 << (8 - (offset & 7)))) |\n");
2201: printf ("\t\t(tmp >> (offset & 7)) |\n");
2202: printf ("\t\t(((offset & 7) + width) >= 32 ? 0 :\n");
2203: printf ("\t\t (bf0 & ((uae_u32)0xffffffff >> ((offset & 7) + width))));\n");
2204: printf ("\tput_long(dsta,bf0 );\n");
2205: printf ("\tif (((offset & 7) + width) > 32) {\n");
2206: printf ("\t\tbf1 = (bf1 & (0xff >> (width - 32 + (offset & 7)))) |\n");
2207: printf ("\t\t\t(tmp << (8 - (offset & 7)));\n");
2208: printf ("\t\tput_byte(dsta+4,bf1);\n");
2209: printf ("\t}\n");
2210: }
1.1 root 2211: }
2212: break;
2213: case i_PACK:
1.1.1.7 ! root 2214: if (curi->smode == Dreg) {
1.1.1.5 root 2215: printf ("\tuae_u16 val = m68k_dreg(regs, srcreg) + %s;\n", gen_nextiword ());
1.1.1.3 root 2216: printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffffff00) | ((val >> 4) & 0xf0) | (val & 0xf);\n");
2217: } else {
2218: printf ("\tuae_u16 val;\n");
2219: printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
2220: printf ("\tval = (uae_u16)get_byte(m68k_areg(regs, srcreg));\n");
2221: printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
1.1.1.5 root 2222: printf ("\tval = (val | ((uae_u16)get_byte(m68k_areg(regs, srcreg)) << 8)) + %s;\n", gen_nextiword ());
1.1.1.3 root 2223: printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
2224: printf ("\tput_byte(m68k_areg(regs, dstreg),((val >> 4) & 0xf0) | (val & 0xf));\n");
1.1 root 2225: }
2226: break;
2227: case i_UNPK:
1.1.1.7 ! root 2228: if (curi->smode == Dreg) {
1.1.1.3 root 2229: printf ("\tuae_u16 val = m68k_dreg(regs, srcreg);\n");
1.1.1.5 root 2230: printf ("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + %s;\n", gen_nextiword ());
1.1.1.3 root 2231: printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffff0000) | (val & 0xffff);\n");
2232: } else {
2233: printf ("\tuae_u16 val;\n");
2234: printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
2235: printf ("\tval = (uae_u16)get_byte(m68k_areg(regs, srcreg));\n");
1.1.1.5 root 2236: printf ("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + %s;\n", gen_nextiword ());
1.1.1.3 root 2237: printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
2238: printf ("\tput_byte(m68k_areg(regs, dstreg),val);\n");
2239: printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
2240: printf ("\tput_byte(m68k_areg(regs, dstreg),val >> 8);\n");
1.1 root 2241: }
2242: break;
2243: case i_TAS:
1.1.1.7 ! root 2244: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
! 2245: genflags (flag_logical, curi->size, "src", "", "");
1.1.1.3 root 2246: printf ("\tsrc |= 0x80;\n");
1.1.1.7 ! root 2247: genastore ("src", curi->smode, "srcreg", curi->size, "src");
1.1 root 2248: break;
2249: case i_FPP:
1.1.1.7 ! root 2250: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
1.1.1.5 root 2251: sync_m68k_pc ();
1.1.1.6 root 2252: swap_opcode ();
1.1.1.3 root 2253: printf ("\tfpp_opp(opcode,extra);\n");
1.1 root 2254: break;
2255: case i_FDBcc:
1.1.1.7 ! root 2256: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
1.1.1.5 root 2257: sync_m68k_pc ();
1.1.1.6 root 2258: swap_opcode ();
1.1.1.3 root 2259: printf ("\tfdbcc_opp(opcode,extra);\n");
1.1 root 2260: break;
2261: case i_FScc:
1.1.1.7 ! root 2262: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
1.1.1.5 root 2263: sync_m68k_pc ();
1.1.1.6 root 2264: swap_opcode ();
1.1.1.3 root 2265: printf ("\tfscc_opp(opcode,extra);\n");
1.1 root 2266: break;
2267: case i_FTRAPcc:
1.1.1.5 root 2268: sync_m68k_pc ();
2269: start_brace ();
1.1.1.3 root 2270: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.7 ! root 2271: if (curi->smode != am_unknown && curi->smode != am_illg)
! 2272: genamode (curi->smode, "srcreg", curi->size, "dummy", 1, 0);
1.1.1.5 root 2273: sync_m68k_pc ();
1.1.1.6 root 2274: swap_opcode ();
1.1.1.3 root 2275: printf ("\tftrapcc_opp(opcode,oldpc);\n");
1.1 root 2276: break;
2277: case i_FBcc:
1.1.1.5 root 2278: sync_m68k_pc ();
2279: start_brace ();
1.1.1.3 root 2280: printf ("\tuaecptr pc = m68k_getpc();\n");
1.1.1.7 ! root 2281: genamode (curi->dmode, "srcreg", curi->size, "extra", 1, 0);
1.1.1.5 root 2282: sync_m68k_pc ();
1.1.1.6 root 2283: swap_opcode ();
1.1.1.3 root 2284: printf ("\tfbcc_opp(opcode,pc,extra);\n");
1.1 root 2285: break;
2286: case i_FSAVE:
1.1.1.5 root 2287: sync_m68k_pc ();
1.1.1.6 root 2288: swap_opcode ();
1.1.1.3 root 2289: printf ("\tfsave_opp(opcode);\n");
1.1 root 2290: break;
2291: case i_FRESTORE:
1.1.1.5 root 2292: sync_m68k_pc ();
1.1.1.6 root 2293: swap_opcode ();
1.1.1.3 root 2294: printf ("\tfrestore_opp(opcode);\n");
1.1 root 2295: break;
2296: case i_MMUOP:
1.1.1.7 ! root 2297: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
1.1.1.5 root 2298: sync_m68k_pc ();
1.1.1.6 root 2299: swap_opcode ();
1.1.1.3 root 2300: printf ("\tmmu_op(opcode,extra);\n");
1.1 root 2301: break;
2302: default:
1.1.1.5 root 2303: abort ();
1.1 root 2304: break;
1.1.1.5 root 2305: }
1.1 root 2306: finish_braces ();
1.1.1.3 root 2307: sync_m68k_pc ();
1.1 root 2308: }
2309:
1.1.1.5 root 2310: static void generate_includes (FILE * f)
1.1.1.3 root 2311: {
2312: fprintf (f, "#include \"sysconfig.h\"\n");
2313: fprintf (f, "#include \"sysdeps.h\"\n");
2314: fprintf (f, "#include \"config.h\"\n");
2315: fprintf (f, "#include \"options.h\"\n");
2316: fprintf (f, "#include \"memory.h\"\n");
2317: fprintf (f, "#include \"custom.h\"\n");
2318: fprintf (f, "#include \"readcpu.h\"\n");
2319: fprintf (f, "#include \"newcpu.h\"\n");
2320: fprintf (f, "#include \"compiler.h\"\n");
2321: fprintf (f, "#include \"cputbl.h\"\n");
2322: }
2323:
2324: static int postfix;
2325:
2326: static void generate_one_opcode (int rp)
1.1 root 2327: {
2328: int i;
1.1.1.3 root 2329: uae_u16 smsk, dmsk;
2330: long int opcode = opcode_map[rp];
1.1 root 2331:
1.1.1.3 root 2332: if (table68k[opcode].mnemo == i_ILLG
2333: || table68k[opcode].clev > cpu_level)
2334: return;
1.1 root 2335:
1.1.1.5 root 2336: for (i = 0; lookuptab[i].name[0]; i++) {
1.1.1.3 root 2337: if (table68k[opcode].mnemo == lookuptab[i].mnemo)
2338: break;
2339: }
1.1 root 2340:
1.1.1.3 root 2341: if (table68k[opcode].handler != -1)
2342: return;
1.1 root 2343:
1.1.1.3 root 2344: if (opcode_next_clev[rp] != cpu_level) {
2345: fprintf (stblfile, "{ op_%lx_%d, 0, %ld }, /* %s */\n", opcode, opcode_last_postfix[rp],
2346: opcode, lookuptab[i].name);
2347: return;
2348: }
2349: fprintf (stblfile, "{ op_%lx_%d, 0, %ld }, /* %s */\n", opcode, postfix, opcode, lookuptab[i].name);
2350: fprintf (headerfile, "extern cpuop_func op_%lx_%d;\n", opcode, postfix);
1.1.1.5 root 2351: printf ("unsigned long REGPARAM2 op_%lx_%d(uae_u32 opcode) /* %s */\n{\n", opcode, postfix, lookuptab[i].name);
1.1.1.3 root 2352:
2353: switch (table68k[opcode].stype) {
2354: case 0: smsk = 7; break;
2355: case 1: smsk = 255; break;
2356: case 2: smsk = 15; break;
2357: case 3: smsk = 7; break;
2358: case 4: smsk = 7; break;
2359: case 5: smsk = 63; break;
1.1.1.5 root 2360: default: abort ();
1.1.1.3 root 2361: }
2362: dmsk = 7;
2363:
2364: next_cpu_level = -1;
2365: if (table68k[opcode].suse
1.1.1.5 root 2366: && table68k[opcode].smode != imm && table68k[opcode].smode != imm0
1.1.1.3 root 2367: && table68k[opcode].smode != imm1 && table68k[opcode].smode != imm2
2368: && table68k[opcode].smode != absw && table68k[opcode].smode != absl
2369: && table68k[opcode].smode != PC8r && table68k[opcode].smode != PC16)
2370: {
2371: if (table68k[opcode].spos == -1) {
1.1.1.5 root 2372: if (((int) table68k[opcode].sreg) >= 128)
2373: printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].sreg);
1.1.1.3 root 2374: else
1.1.1.5 root 2375: printf ("\tuae_u32 srcreg = %d;\n", (int) table68k[opcode].sreg);
1.1.1.3 root 2376: } else {
2377: char source[100];
1.1.1.6 root 2378: int pos = table68k[opcode].spos;
1.1.1.5 root 2379:
1.1.1.6 root 2380: #if 0
1.1.1.5 root 2381: /* Check that we can do the little endian optimization safely. */
1.1.1.6 root 2382: if (pos < 8 && (smsk >> (8 - pos)) != 0)
1.1.1.5 root 2383: abort ();
1.1.1.6 root 2384: #endif
1.1.1.5 root 2385: printf ("#ifdef HAVE_GET_WORD_UNSWAPPED\n");
2386:
1.1.1.6 root 2387: if (pos < 8 && (smsk >> (8 - pos)) != 0)
2388: sprintf (source, "(((opcode >> %d) | (opcode << %d)) & %d)",
2389: pos ^ 8, 8 - pos, dmsk);
2390: else if (pos != 8)
2391: sprintf (source, "((opcode >> %d) & %d)", pos ^ 8, smsk);
1.1.1.5 root 2392: else
2393: sprintf (source, "(opcode & %d)", smsk);
2394:
2395: if (table68k[opcode].stype == 3)
2396: printf ("\tuae_u32 srcreg = imm8_table[%s];\n", source);
2397: else if (table68k[opcode].stype == 1)
2398: printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%s;\n", source);
2399: else
2400: printf ("\tuae_u32 srcreg = %s;\n", source);
2401:
2402: printf ("#else\n");
2403:
1.1.1.6 root 2404: if (pos)
2405: sprintf (source, "((opcode >> %d) & %d)", pos, smsk);
1.1.1.3 root 2406: else
1.1.1.5 root 2407: sprintf (source, "(opcode & %d)", smsk);
2408:
1.1.1.3 root 2409: if (table68k[opcode].stype == 3)
2410: printf ("\tuae_u32 srcreg = imm8_table[%s];\n", source);
2411: else if (table68k[opcode].stype == 1)
2412: printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%s;\n", source);
2413: else
2414: printf ("\tuae_u32 srcreg = %s;\n", source);
1.1.1.5 root 2415:
2416: printf ("#endif\n");
1.1 root 2417: }
1.1.1.3 root 2418: }
2419: if (table68k[opcode].duse
2420: /* Yes, the dmode can be imm, in case of LINK or DBcc */
1.1.1.5 root 2421: && table68k[opcode].dmode != imm && table68k[opcode].dmode != imm0
1.1.1.3 root 2422: && table68k[opcode].dmode != imm1 && table68k[opcode].dmode != imm2
1.1.1.5 root 2423: && table68k[opcode].dmode != absw && table68k[opcode].dmode != absl)
2424: {
1.1.1.3 root 2425: if (table68k[opcode].dpos == -1) {
1.1.1.5 root 2426: if (((int) table68k[opcode].dreg) >= 128)
2427: printf ("\tuae_u32 dstreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].dreg);
1.1.1.3 root 2428: else
1.1.1.5 root 2429: printf ("\tuae_u32 dstreg = %d;\n", (int) table68k[opcode].dreg);
1.1.1.3 root 2430: } else {
1.1.1.5 root 2431: int pos = table68k[opcode].dpos;
1.1.1.6 root 2432: #if 0
1.1.1.5 root 2433: /* Check that we can do the little endian optimization safely. */
1.1.1.6 root 2434: if (pos < 8 && (dmsk >> (8 - pos)) != 0)
1.1.1.5 root 2435: abort ();
1.1.1.6 root 2436: #endif
1.1.1.5 root 2437: printf ("#ifdef HAVE_GET_WORD_UNSWAPPED\n");
2438:
1.1.1.6 root 2439: if (pos < 8 && (dmsk >> (8 - pos)) != 0)
2440: printf ("\tuae_u32 dstreg = ((opcode >> %d) | (opcode << %d)) & %d;\n",
2441: pos ^ 8, 8 - pos, dmsk);
2442: else if (pos != 8)
1.1.1.5 root 2443: printf ("\tuae_u32 dstreg = (opcode >> %d) & %d;\n",
2444: pos ^ 8, dmsk);
2445: else
2446: printf ("\tuae_u32 dstreg = opcode & %d;\n", dmsk);
2447:
2448: printf ("#else\n");
2449:
2450: if (pos)
1.1.1.3 root 2451: printf ("\tuae_u32 dstreg = (opcode >> %d) & %d;\n",
1.1.1.5 root 2452: pos, dmsk);
1.1.1.3 root 2453: else
2454: printf ("\tuae_u32 dstreg = opcode & %d;\n", dmsk);
1.1.1.5 root 2455:
2456: printf ("#endif\n");
1.1 root 2457: }
2458: }
1.1.1.5 root 2459: need_endlabel = 0;
1.1.1.3 root 2460: endlabelno++;
2461: sprintf (endlabelstr, "endlabel%d", endlabelno);
2462: gen_opcode (opcode);
1.1.1.5 root 2463: if (need_endlabel)
1.1.1.6 root 2464: printf ("%s: ;\n", endlabelstr);
1.1.1.5 root 2465: printf ("return %d;\n", insn_n_cycles);
1.1.1.3 root 2466: printf ("}\n");
2467: opcode_next_clev[rp] = next_cpu_level;
2468: opcode_last_postfix[rp] = postfix;
1.1 root 2469: }
2470:
1.1.1.3 root 2471: static void generate_func (void)
1.1 root 2472: {
1.1.1.5 root 2473: int i, j, rp;
1.1 root 2474:
1.1.1.3 root 2475: using_prefetch = 0;
2476: using_exception_3 = 0;
2477: for (i = 0; i < 5; i++) {
2478: cpu_level = 3 - i;
2479: if (i == 4) {
2480: cpu_level = 0;
2481: using_prefetch = 1;
2482: using_exception_3 = 1;
2483: for (rp = 0; rp < nr_cpuop_funcs; rp++)
2484: opcode_next_clev[rp] = 0;
2485: }
2486: postfix = i;
2487: fprintf (stblfile, "struct cputbl op_smalltbl_%d[] = {\n", postfix);
2488:
1.1.1.5 root 2489: /* sam: this is for people with low memory (eg. me :)) */
2490: printf ("\n"
2491: "#if !defined(PART_1) && !defined(PART_2) && "
2492: "!defined(PART_3) && !defined(PART_4) && "
2493: "!defined(PART_5) && !defined(PART_6) && "
2494: "!defined(PART_7) && !defined(PART_8)"
2495: "\n"
2496: "#define PART_1 1\n"
2497: "#define PART_2 1\n"
2498: "#define PART_3 1\n"
2499: "#define PART_4 1\n"
2500: "#define PART_5 1\n"
2501: "#define PART_6 1\n"
2502: "#define PART_7 1\n"
2503: "#define PART_8 1\n"
2504: "#endif\n\n");
2505:
2506: rp = 0;
2507: for(j=1;j<=8;++j) {
2508: int k = (j*nr_cpuop_funcs)/8;
2509: printf ("#ifdef PART_%d\n",j);
2510: for (; rp < k; rp++)
2511: generate_one_opcode (rp);
2512: printf ("#endif\n\n");
2513: }
2514:
1.1.1.3 root 2515: fprintf (stblfile, "{ 0, 0, 0 }};\n");
1.1 root 2516: }
2517:
2518: }
2519:
1.1.1.3 root 2520: int main (int argc, char **argv)
1.1.1.5 root 2521: {
1.1 root 2522: read_table68k ();
2523: do_merges ();
1.1.1.3 root 2524:
1.1.1.5 root 2525: opcode_map = (int *) xmalloc (sizeof (int) * nr_cpuop_funcs);
2526: opcode_last_postfix = (int *) xmalloc (sizeof (int) * nr_cpuop_funcs);
2527: opcode_next_clev = (int *) xmalloc (sizeof (int) * nr_cpuop_funcs);
2528: counts = (unsigned long *) xmalloc (65536 * sizeof (unsigned long));
2529: read_counts ();
1.1.1.3 root 2530:
2531: /* It would be a lot nicer to put all in one file (we'd also get rid of
2532: * cputbl.h that way), but cpuopti can't cope. That could be fixed, but
2533: * I don't dare to touch the 68k version. */
1.1.1.5 root 2534:
1.1.1.3 root 2535: headerfile = fopen ("cputbl.h", "wb");
2536: stblfile = fopen ("cpustbl.c", "wb");
2537: freopen ("cpuemu.c", "wb", stdout);
2538:
2539: generate_includes (stdout);
2540: generate_includes (stblfile);
2541:
2542: generate_func ();
2543:
2544: free (table68k);
1.1 root 2545: return 0;
2546: }
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