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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: *
1.1.1.11 root 16: * The source for the insn timings is Markt & Technik's Amiga Magazin 8/1992.
17: *
18: * Copyright 1995, 1996, 1997, 1998, 1999, 2000 Bernd Schmidt
1.1 root 19: */
20:
21: #include "sysconfig.h"
22: #include "sysdeps.h"
23: #include <ctype.h>
24:
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;
1.1.1.17 root 34: static int using_ce = 0;
1.1.1.3 root 35: static int cpu_level;
36:
1.1.1.17 root 37: /* Flags for genamode. */
38: #define GF_APDI 1
39: #define GF_AD8R 2
40: #define GF_PC8R 4
41: #define GF_AA 7
42: #define GF_NOREFILL 8
43: #define GF_PREFETCH 16
44:
1.1.1.3 root 45: /* For the current opcode, the next lower level that will have different code.
46: * Initialized to -1 for each opcode. If it remains unchanged, indicates we
47: * are done with that opcode. */
48: static int next_cpu_level;
1.1 root 49:
1.1.1.3 root 50: static int *opcode_map;
51: static int *opcode_next_clev;
52: static int *opcode_last_postfix;
53: static unsigned long *counts;
54:
1.1.1.5 root 55: static void read_counts (void)
1.1 root 56: {
57: FILE *file;
1.1.1.5 root 58: unsigned long opcode, count, total;
1.1 root 59: char name[20];
1.1.1.5 root 60: int nr = 0;
1.1.1.3 root 61: memset (counts, 0, 65536 * sizeof *counts);
1.1 root 62:
1.1.1.3 root 63: file = fopen ("frequent.68k", "r");
64: if (file) {
65: fscanf (file, "Total: %lu\n", &total);
1.1.1.5 root 66: while (fscanf (file, "%lx: %lu %s\n", &opcode, &count, name) == 3) {
1.1.1.12 root 67: opcode_next_clev[nr] = 4;
1.1.1.3 root 68: opcode_last_postfix[nr] = -1;
69: opcode_map[nr++] = opcode;
70: counts[opcode] = count;
71: }
72: fclose (file);
73: }
74: if (nr == nr_cpuop_funcs)
75: return;
76: for (opcode = 0; opcode < 0x10000; opcode++) {
77: if (table68k[opcode].handler == -1 && table68k[opcode].mnemo != i_ILLG
78: && counts[opcode] == 0)
1.1 root 79: {
1.1.1.12 root 80: opcode_next_clev[nr] = 4;
1.1.1.3 root 81: opcode_last_postfix[nr] = -1;
82: opcode_map[nr++] = opcode;
83: counts[opcode] = count;
1.1 root 84: }
85: }
1.1.1.3 root 86: if (nr != nr_cpuop_funcs)
87: abort ();
1.1 root 88: }
89:
1.1.1.3 root 90: static char endlabelstr[80];
91: static int endlabelno = 0;
1.1.1.5 root 92: static int need_endlabel;
1.1 root 93:
94: static int n_braces = 0;
1.1.1.3 root 95: static int m68k_pc_offset = 0;
1.1.1.5 root 96: static int insn_n_cycles;
1.1 root 97:
1.1.1.17 root 98: static void returncycles (char *s, int cycles)
99: {
100: if (using_ce) return;
101: printf ("%sreturn %d * %d;\n", s, cycles, CYCLE_UNIT / 2);
102: }
103:
104: static int isreg (amodes mode)
105: {
106: if (mode == Dreg || mode == Areg)
107: return 1;
108: return 0;
109: }
110:
1.1.1.5 root 111: static void start_brace (void)
1.1 root 112: {
113: n_braces++;
1.1.1.3 root 114: printf ("{");
1.1 root 115: }
116:
1.1.1.5 root 117: static void close_brace (void)
1.1 root 118: {
119: assert (n_braces > 0);
120: n_braces--;
1.1.1.3 root 121: printf ("}");
1.1 root 122: }
123:
1.1.1.5 root 124: static void finish_braces (void)
1.1 root 125: {
126: while (n_braces > 0)
1.1.1.5 root 127: close_brace ();
1.1 root 128: }
129:
1.1.1.5 root 130: static void pop_braces (int to)
1.1 root 131: {
132: while (n_braces > to)
1.1.1.5 root 133: close_brace ();
1.1 root 134: }
135:
1.1.1.5 root 136: static int bit_size (int size)
1.1 root 137: {
1.1.1.5 root 138: switch (size) {
139: case sz_byte: return 8;
140: case sz_word: return 16;
141: case sz_long: return 32;
142: default: abort ();
1.1 root 143: }
144: return 0;
145: }
146:
1.1.1.5 root 147: static const char *bit_mask (int size)
1.1 root 148: {
1.1.1.5 root 149: switch (size) {
1.1.1.3 root 150: case sz_byte: return "0xff";
151: case sz_word: return "0xffff";
152: case sz_long: return "0xffffffff";
1.1.1.5 root 153: default: abort ();
1.1 root 154: }
155: return 0;
156: }
157:
1.1.1.17 root 158: static void gen_nextilong (char *type, char *name, int norefill)
1.1.1.3 root 159: {
160: int r = m68k_pc_offset;
161: m68k_pc_offset += 4;
1.1.1.5 root 162:
1.1.1.17 root 163: if (using_ce) {
1.1.1.18 root 164: printf ("\t%s %s;\n", type, name);
1.1.1.17 root 165: /* we must do this because execution order of (something | something2) is not defined */
166: if (norefill) {
167: printf ("\t%s = get_word_ce_prefetch (%d) << 16;\n", name, r + 2);
168: printf ("\t%s |= regs.irc;\n", name);
169: } else {
170: printf ("\t%s = get_word_ce_prefetch (%d) << 16;\n", name, r + 2);
171: printf ("\t%s |= get_word_ce_prefetch (%d);\n", name, r + 4);
172: }
173: } else {
1.1.1.18 root 174: if (using_prefetch) {
1.1.1.17 root 175: if (norefill) {
1.1.1.18 root 176: printf ("\t%s %s;\n", type, name);
1.1.1.17 root 177: printf ("\t%s = get_word_prefetch (%d) << 16;\n", name, r + 2);
178: printf ("\t%s |= regs.irc;\n", name);
179: insn_n_cycles += 4;
180: } else
181: printf ("\t%s %s = get_long_prefetch (%d);\n", type, name, r + 2);
182: insn_n_cycles += 8;
183: } else {
184: insn_n_cycles += 8;
185: printf ("\t%s %s = get_ilong (%d);\n", type, name, r);
186: }
187: }
1.1.1.3 root 188: }
189:
1.1.1.17 root 190: static const char *gen_nextiword (int norefill)
1.1.1.3 root 191: {
192: static char buffer[80];
193: int r = m68k_pc_offset;
194: m68k_pc_offset += 2;
1.1.1.5 root 195:
1.1.1.17 root 196: if (using_ce) {
197: if (norefill)
198: strcpy (buffer, "regs.irc");
199: else
200: sprintf (buffer, "get_word_ce_prefetch (%d)", r + 2);
201: } else {
202: if (using_prefetch) {
203: if (norefill) {
204: sprintf (buffer, "regs.irc", r);
205: } else {
206: sprintf (buffer, "get_word_prefetch (%d)", r + 2);
207: insn_n_cycles += 4;
208: }
209: } else {
210: sprintf (buffer, "get_iword (%d)", r);
1.1.1.18 root 211: insn_n_cycles += 4;
1.1.1.17 root 212: }
213: }
1.1.1.3 root 214: return buffer;
215: }
216:
1.1.1.17 root 217: static const char *gen_nextibyte (int norefill)
1.1.1.3 root 218: {
219: static char buffer[80];
220: int r = m68k_pc_offset;
221: m68k_pc_offset += 2;
1.1.1.5 root 222:
1.1.1.17 root 223: if (using_ce) {
224: if (norefill)
225: strcpy (buffer, "(uae_u8)regs.irc");
226: else
227: sprintf (buffer, "(uae_u8)get_word_ce_prefetch (%d)", r + 2);
228: } else {
1.1.1.18 root 229: insn_n_cycles += 4;
1.1.1.17 root 230: if (using_prefetch) {
231: if (norefill) {
232: sprintf (buffer, "(uae_u8)regs.irc", r);
233: } else {
234: sprintf (buffer, "(uae_u8)get_word_prefetch (%d)", r + 2);
1.1.1.18 root 235: insn_n_cycles += 4;
1.1.1.17 root 236: }
237: } else {
238: sprintf (buffer, "get_ibyte (%d)", r);
1.1.1.18 root 239: insn_n_cycles += 4;
1.1.1.17 root 240: }
241: }
242: return buffer;
243: }
1.1.1.5 root 244:
1.1.1.17 root 245: static void irc2ir (void)
246: {
247: if (!using_prefetch)
248: return;
249: printf ("\tregs.ir = regs.irc;\n");
250: }
251:
252: static int did_prefetch;
253:
254: static void fill_prefetch_2 (void)
255: {
256: if (!using_prefetch)
257: return;
258: if (using_ce)
259: printf ("\tget_word_ce_prefetch (%d);\n", m68k_pc_offset + 2);
1.1.1.5 root 260: else
1.1.1.17 root 261: printf ("\tget_word_prefetch (%d);\n", m68k_pc_offset + 2);
262: did_prefetch = 1;
263: insn_n_cycles += 4;
264: }
265:
266: static void fill_prefetch_1 (int o, int needcycles)
267: {
268: if (!using_prefetch)
269: return;
270: if (using_ce) {
271: if (needcycles) {
272: printf ("\tlostcycles = get_word_ce_prefetch_cycles (%d);\n", o);
273: } else {
274: printf ("\tget_word_ce_prefetch (%d);\n", o);
275: }
276: } else {
277: printf ("\tget_word_prefetch (%d);\n", o);
278: }
279: did_prefetch = 1;
280: insn_n_cycles += 4;
281: }
282:
283: static void fill_prefetch_full (void)
284: {
285: fill_prefetch_1 (0, 0);
286: irc2ir ();
287: fill_prefetch_1 (2, 0);
1.1.1.3 root 288: }
289:
290: static void fill_prefetch_0 (void)
291: {
1.1.1.17 root 292: if (!using_prefetch)
293: return;
294: if (using_ce)
295: printf ("\tget_word_ce_prefetch (0);\n");
296: else
297: printf ("\tget_word_prefetch (0);\n");
298: did_prefetch = 1;
299: insn_n_cycles += 4;
1.1.1.19 root 300: }
1.1.1.17 root 301:
302: static void fill_prefetch_next_1 (needcycles)
303: {
304: if (needcycles && using_ce) {
305: printf ("\tint lostcycles;\n");
306: }
307: irc2ir ();
308: fill_prefetch_1 (m68k_pc_offset + 2, needcycles);
1.1.1.19 root 309: }
1.1.1.17 root 310:
311: static void fill_prefetch_next (void)
312: {
313: fill_prefetch_next_1 (0);
314: }
315: static void fill_prefetch_next_cycles (void)
316: {
317: fill_prefetch_next_1 (1);
1.1.1.3 root 318: }
319:
1.1.1.17 root 320: static void fill_prefetch_next_delay (int extracycles)
1.1.1.3 root 321: {
1.1.1.17 root 322: if (!using_prefetch)
323: return;
324: if (using_ce) {
325: if (extracycles > 0) {
326: printf("\t{\n");
327: fill_prefetch_next_cycles ();
328: printf("\tif ((%d + 4) * %d > lostcycles) do_cycles_ce ((%d + 4) * %d - lostcycles);\n",
329: extracycles, CYCLE_UNIT / 2, extracycles, CYCLE_UNIT / 2);
330: printf("\t}\n");
331: } else {
332: fill_prefetch_next ();
333: }
334: } else {
335: fill_prefetch_next ();
336: }
337: }
338:
339: static void fill_prefetch_finish (void)
340: {
341: if (did_prefetch || !using_prefetch)
342: return;
343: fill_prefetch_1 (m68k_pc_offset, 0);
1.1.1.3 root 344: }
345:
346: static void sync_m68k_pc (void)
347: {
348: if (m68k_pc_offset == 0)
349: return;
1.1.1.17 root 350: printf ("\tm68k_incpc (%d);\n", m68k_pc_offset);
1.1.1.3 root 351: m68k_pc_offset = 0;
352: }
353:
354: /* getv == 1: fetch data; getv != 0: check for odd address. If movem != 0,
1.1.1.14 root 355: * the calling routine handles Apdi and Aipi modes.
356: * gb-- movem == 2 means the same thing but for a MOVE16 instruction */
1.1.1.17 root 357: static void genamode (amodes mode, char *reg, wordsizes size, char *name, int getv, int movem, int flags)
1.1 root 358: {
1.1.1.17 root 359: char namea[100];
360: int m68k_pc_offset_last = m68k_pc_offset;
361:
362: sprintf (namea, "%sa", name);
363:
1.1.1.6 root 364: start_brace ();
1.1.1.5 root 365: switch (mode) {
1.1.1.11 root 366: case Dreg:
1.1 root 367: if (movem)
1.1.1.5 root 368: abort ();
1.1.1.3 root 369: if (getv == 1)
1.1.1.5 root 370: switch (size) {
1.1.1.11 root 371: case sz_byte:
1.1.1.8 root 372: #if defined(AMIGA) && !defined(WARPUP)
1.1.1.2 root 373: /* sam: I don't know why gcc.2.7.2.1 produces a code worse */
374: /* if it is not done like that: */
1.1.1.3 root 375: printf ("\tuae_s8 %s = ((uae_u8*)&m68k_dreg(regs, %s))[3];\n", name, reg);
1.1.1.2 root 376: #else
1.1.1.3 root 377: printf ("\tuae_s8 %s = m68k_dreg(regs, %s);\n", name, reg);
1.1.1.2 root 378: #endif
1.1 root 379: break;
1.1.1.11 root 380: case sz_word:
1.1.1.8 root 381: #if defined(AMIGA) && !defined(WARPUP)
1.1.1.3 root 382: printf ("\tuae_s16 %s = ((uae_s16*)&m68k_dreg(regs, %s))[1];\n", name, reg);
1.1.1.2 root 383: #else
1.1.1.3 root 384: printf ("\tuae_s16 %s = m68k_dreg(regs, %s);\n", name, reg);
1.1.1.2 root 385: #endif
1.1 root 386: break;
1.1.1.11 root 387: case sz_long:
1.1.1.3 root 388: printf ("\tuae_s32 %s = m68k_dreg(regs, %s);\n", name, reg);
1.1 root 389: break;
1.1.1.11 root 390: default:
1.1.1.5 root 391: abort ();
1.1 root 392: }
1.1.1.3 root 393: return;
1.1.1.11 root 394: case Areg:
1.1 root 395: if (movem)
1.1.1.5 root 396: abort ();
1.1.1.3 root 397: if (getv == 1)
1.1.1.5 root 398: switch (size) {
1.1.1.11 root 399: case sz_word:
1.1.1.3 root 400: printf ("\tuae_s16 %s = m68k_areg(regs, %s);\n", name, reg);
1.1 root 401: break;
1.1.1.11 root 402: case sz_long:
1.1.1.3 root 403: printf ("\tuae_s32 %s = m68k_areg(regs, %s);\n", name, reg);
1.1 root 404: break;
1.1.1.11 root 405: default:
1.1.1.5 root 406: abort ();
1.1 root 407: }
1.1.1.3 root 408: return;
1.1.1.11 root 409: case Aind:
1.1.1.3 root 410: printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg);
1.1 root 411: break;
1.1.1.11 root 412: case Aipi:
1.1.1.3 root 413: printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg);
1.1 root 414: break;
1.1.1.11 root 415: case Apdi:
416: insn_n_cycles += 2;
1.1.1.5 root 417: switch (size) {
1.1.1.11 root 418: case sz_byte:
1.1.1.3 root 419: if (movem)
420: printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg);
421: else
422: printf ("\tuaecptr %sa = m68k_areg(regs, %s) - areg_byteinc[%s];\n", name, reg, reg);
1.1 root 423: break;
1.1.1.11 root 424: case sz_word:
1.1.1.3 root 425: printf ("\tuaecptr %sa = m68k_areg(regs, %s) - %d;\n", name, reg, movem ? 0 : 2);
1.1 root 426: break;
1.1.1.11 root 427: case sz_long:
1.1.1.3 root 428: printf ("\tuaecptr %sa = m68k_areg(regs, %s) - %d;\n", name, reg, movem ? 0 : 4);
1.1 root 429: break;
1.1.1.11 root 430: default:
1.1.1.5 root 431: abort ();
1.1 root 432: }
433: break;
1.1.1.11 root 434: case Ad16:
1.1.1.17 root 435: printf ("\tuaecptr %sa = m68k_areg(regs, %s) + (uae_s32)(uae_s16)%s;\n", name, reg, gen_nextiword (flags & GF_NOREFILL));
1.1 root 436: break;
1.1.1.11 root 437: case Ad8r:
438: insn_n_cycles += 2;
1.1.1.3 root 439: if (cpu_level > 1) {
440: if (next_cpu_level < 1)
441: next_cpu_level = 1;
1.1.1.5 root 442: sync_m68k_pc ();
443: start_brace ();
1.1.1.11 root 444: /* This would ordinarily be done in gen_nextiword, which we bypass. */
445: insn_n_cycles += 4;
1.1.1.3 root 446: printf ("\tuaecptr %sa = get_disp_ea_020(m68k_areg(regs, %s), next_iword());\n", name, reg);
1.1.1.6 root 447: } else
1.1.1.17 root 448: printf ("\tuaecptr %sa = get_disp_ea_000(m68k_areg(regs, %s), %s);\n", name, reg, gen_nextiword (flags & GF_NOREFILL));
1.1.1.6 root 449:
1.1 root 450: break;
1.1.1.11 root 451: case PC16:
1.1.1.6 root 452: printf ("\tuaecptr %sa = m68k_getpc () + %d;\n", name, m68k_pc_offset);
1.1.1.17 root 453: printf ("\t%sa += (uae_s32)(uae_s16)%s;\n", name, gen_nextiword (flags & GF_NOREFILL));
1.1 root 454: break;
1.1.1.11 root 455: case PC8r:
456: insn_n_cycles += 2;
1.1.1.3 root 457: if (cpu_level > 1) {
458: if (next_cpu_level < 1)
459: next_cpu_level = 1;
1.1.1.5 root 460: sync_m68k_pc ();
461: start_brace ();
1.1.1.11 root 462: /* This would ordinarily be done in gen_nextiword, which we bypass. */
463: insn_n_cycles += 4;
1.1.1.3 root 464: printf ("\tuaecptr tmppc = m68k_getpc();\n");
465: printf ("\tuaecptr %sa = get_disp_ea_020(tmppc, next_iword());\n", name);
466: } else {
1.1.1.6 root 467: printf ("\tuaecptr tmppc = m68k_getpc() + %d;\n", m68k_pc_offset);
1.1.1.17 root 468: printf ("\tuaecptr %sa = get_disp_ea_000(tmppc, %s);\n", name, gen_nextiword (flags & GF_NOREFILL));
1.1 root 469: }
1.1.1.3 root 470:
1.1 root 471: break;
1.1.1.11 root 472: case absw:
1.1.1.17 root 473: printf ("\tuaecptr %sa = (uae_s32)(uae_s16)%s;\n", name, gen_nextiword (flags & GF_NOREFILL));
1.1 root 474: break;
1.1.1.11 root 475: case absl:
1.1.1.17 root 476: gen_nextilong ("uaecptr", namea, flags & GF_NOREFILL);
1.1 root 477: break;
1.1.1.11 root 478: case imm:
1.1.1.3 root 479: if (getv != 1)
480: abort ();
1.1.1.5 root 481: switch (size) {
1.1.1.11 root 482: case sz_byte:
1.1.1.17 root 483: printf ("\tuae_s8 %s = %s;\n", name, gen_nextibyte (flags & GF_NOREFILL));
1.1.1.3 root 484: break;
1.1.1.11 root 485: case sz_word:
1.1.1.17 root 486: printf ("\tuae_s16 %s = %s;\n", name, gen_nextiword (flags & GF_NOREFILL));
1.1.1.3 root 487: break;
1.1.1.11 root 488: case sz_long:
1.1.1.17 root 489: gen_nextilong ("uae_s32", name, flags & GF_NOREFILL);
1.1.1.3 root 490: break;
1.1.1.11 root 491: default:
1.1.1.5 root 492: abort ();
1.1.1.3 root 493: }
494: return;
1.1.1.11 root 495: case imm0:
1.1.1.5 root 496: if (getv != 1)
497: abort ();
1.1.1.17 root 498: printf ("\tuae_s8 %s = %s;\n", name, gen_nextibyte (flags & GF_NOREFILL));
1.1.1.3 root 499: return;
1.1.1.11 root 500: case imm1:
1.1.1.5 root 501: if (getv != 1)
502: abort ();
1.1.1.17 root 503: printf ("\tuae_s16 %s = %s;\n", name, gen_nextiword (flags & GF_NOREFILL));
1.1.1.3 root 504: return;
1.1.1.11 root 505: case imm2:
1.1.1.5 root 506: if (getv != 1)
507: abort ();
1.1.1.17 root 508: gen_nextilong ("uae_s32", name, flags & GF_NOREFILL);
1.1.1.3 root 509: return;
1.1.1.11 root 510: case immi:
1.1.1.5 root 511: if (getv != 1)
512: abort ();
1.1.1.3 root 513: printf ("\tuae_u32 %s = %s;\n", name, reg);
514: return;
1.1.1.11 root 515: default:
1.1.1.5 root 516: abort ();
1.1.1.3 root 517: }
518:
519: /* We get here for all non-reg non-immediate addressing modes to
520: * actually fetch the value. */
521:
1.1.1.19 root 522: if (using_prefetch && using_exception_3 && getv != 0 && size != sz_byte) {
1.1.1.17 root 523: printf ("\tif (%sa & 1) {\n", name);
524: if (using_prefetch)
525: printf ("\t\texception3 (opcode, m68k_getpc() + %d, %sa);\n", m68k_pc_offset + 2, name);
526: else
1.1.1.19 root 527: printf ("\t\texception3 (opcode, m68k_getpc() + %d, %sa);\n", m68k_pc_offset_last, name);
1.1.1.3 root 528: printf ("\t\tgoto %s;\n", endlabelstr);
529: printf ("\t}\n");
1.1.1.5 root 530: need_endlabel = 1;
1.1.1.3 root 531: start_brace ();
532: }
1.1.1.6 root 533:
1.1.1.17 root 534: if (flags & GF_PREFETCH)
535: fill_prefetch_next ();
536:
1.1.1.6 root 537: if (getv == 1) {
538: switch (size) {
1.1.1.11 root 539: case sz_byte: insn_n_cycles += 4; break;
540: case sz_word: insn_n_cycles += 4; break;
541: case sz_long: insn_n_cycles += 8; break;
542: default: abort ();
1.1.1.6 root 543: }
544: start_brace ();
545: switch (size) {
1.1.1.11 root 546: case sz_byte: printf ("\tuae_s8 %s = get_byte(%sa);\n", name, name); break;
547: case sz_word: printf ("\tuae_s16 %s = get_word(%sa);\n", name, name); break;
548: case sz_long: printf ("\tuae_s32 %s = get_long(%sa);\n", name, name); break;
549: default: abort ();
1.1.1.6 root 550: }
551: }
552:
1.1.1.3 root 553: /* We now might have to fix up the register for pre-dec or post-inc
554: * addressing modes. */
555: if (!movem)
556: switch (mode) {
1.1.1.11 root 557: case Aipi:
1.1.1.5 root 558: switch (size) {
1.1.1.11 root 559: case sz_byte:
1.1.1.3 root 560: printf ("\tm68k_areg(regs, %s) += areg_byteinc[%s];\n", reg, reg);
1.1 root 561: break;
1.1.1.11 root 562: case sz_word:
1.1.1.3 root 563: printf ("\tm68k_areg(regs, %s) += 2;\n", reg);
1.1 root 564: break;
1.1.1.11 root 565: case sz_long:
1.1.1.3 root 566: printf ("\tm68k_areg(regs, %s) += 4;\n", reg);
1.1 root 567: break;
1.1.1.11 root 568: default:
1.1.1.5 root 569: abort ();
1.1 root 570: }
1.1.1.3 root 571: break;
1.1.1.11 root 572: case Apdi:
1.1.1.3 root 573: printf ("\tm68k_areg (regs, %s) = %sa;\n", reg, name);
574: break;
1.1.1.11 root 575: default:
1.1.1.3 root 576: break;
577: }
1.1 root 578: }
579:
1.1.1.3 root 580: static void genastore (char *from, amodes mode, char *reg, wordsizes size, char *to)
1.1 root 581: {
1.1.1.5 root 582: switch (mode) {
1.1 root 583: case Dreg:
1.1.1.5 root 584: switch (size) {
1.1 root 585: case sz_byte:
1.1.1.3 root 586: printf ("\tm68k_dreg(regs, %s) = (m68k_dreg(regs, %s) & ~0xff) | ((%s) & 0xff);\n", reg, reg, from);
1.1 root 587: break;
588: case sz_word:
1.1.1.3 root 589: printf ("\tm68k_dreg(regs, %s) = (m68k_dreg(regs, %s) & ~0xffff) | ((%s) & 0xffff);\n", reg, reg, from);
1.1 root 590: break;
591: case sz_long:
1.1.1.3 root 592: printf ("\tm68k_dreg(regs, %s) = (%s);\n", reg, from);
1.1 root 593: break;
1.1.1.5 root 594: default:
595: abort ();
1.1 root 596: }
597: break;
598: case Areg:
1.1.1.5 root 599: switch (size) {
1.1 root 600: case sz_word:
1.1.1.16 root 601: write_log ("Foo\n");
1.1.1.3 root 602: printf ("\tm68k_areg(regs, %s) = (uae_s32)(uae_s16)(%s);\n", reg, from);
1.1 root 603: break;
604: case sz_long:
1.1.1.3 root 605: printf ("\tm68k_areg(regs, %s) = (%s);\n", reg, from);
1.1 root 606: break;
1.1.1.5 root 607: default:
608: abort ();
1.1 root 609: }
610: break;
611: case Aind:
612: case Aipi:
613: case Apdi:
614: case Ad16:
615: case Ad8r:
616: case absw:
617: case absl:
618: case PC16:
619: case PC8r:
1.1.1.3 root 620: if (using_prefetch)
1.1.1.5 root 621: sync_m68k_pc ();
622: switch (size) {
1.1 root 623: case sz_byte:
1.1.1.11 root 624: insn_n_cycles += 4;
1.1.1.3 root 625: printf ("\tput_byte(%sa,%s);\n", to, from);
1.1 root 626: break;
627: case sz_word:
1.1.1.11 root 628: insn_n_cycles += 4;
1.1.1.5 root 629: if (cpu_level < 2 && (mode == PC16 || mode == PC8r))
630: abort ();
1.1.1.3 root 631: printf ("\tput_word(%sa,%s);\n", to, from);
1.1 root 632: break;
633: case sz_long:
1.1.1.11 root 634: insn_n_cycles += 8;
1.1.1.5 root 635: if (cpu_level < 2 && (mode == PC16 || mode == PC8r))
636: abort ();
1.1.1.3 root 637: printf ("\tput_long(%sa,%s);\n", to, from);
1.1 root 638: break;
1.1.1.5 root 639: default:
640: abort ();
1.1 root 641: }
642: break;
643: case imm:
644: case imm0:
645: case imm1:
646: case imm2:
647: case immi:
1.1.1.5 root 648: abort ();
1.1 root 649: break;
1.1.1.3 root 650: default:
1.1.1.5 root 651: abort ();
1.1 root 652: }
653: }
654:
1.1.1.5 root 655: static void genmovemel (uae_u16 opcode)
1.1 root 656: {
657: char getcode[100];
658: int size = table68k[opcode].size == sz_long ? 4 : 2;
1.1.1.3 root 659:
660: if (table68k[opcode].size == sz_long) {
1.1.1.5 root 661: strcpy (getcode, "get_long(srca)");
1.1.1.3 root 662: } else {
1.1.1.5 root 663: strcpy (getcode, "(uae_s32)(uae_s16)get_word(srca)");
1.1 root 664: }
1.1.1.3 root 665:
1.1.1.17 root 666: printf ("\tuae_u16 mask = %s;\n", gen_nextiword (0));
1.1.1.3 root 667: printf ("\tunsigned int dmask = mask & 0xff, amask = (mask >> 8) & 0xff;\n");
1.1.1.17 root 668: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 2, 1, 0);
1.1.1.5 root 669: start_brace ();
1.1.1.3 root 670: printf ("\twhile (dmask) { m68k_dreg(regs, movem_index1[dmask]) = %s; srca += %d; dmask = movem_next[dmask]; }\n",
1.1.1.5 root 671: getcode, size);
1.1.1.3 root 672: printf ("\twhile (amask) { m68k_areg(regs, movem_index1[amask]) = %s; srca += %d; amask = movem_next[amask]; }\n",
1.1.1.5 root 673: getcode, size);
1.1 root 674:
675: if (table68k[opcode].dmode == Aipi)
1.1.1.3 root 676: printf ("\tm68k_areg(regs, dstreg) = srca;\n");
1.1 root 677: }
678:
1.1.1.5 root 679: static void genmovemle (uae_u16 opcode)
1.1 root 680: {
681: char putcode[100];
682: int size = table68k[opcode].size == sz_long ? 4 : 2;
683: if (table68k[opcode].size == sz_long) {
1.1.1.5 root 684: strcpy (putcode, "put_long(srca,");
1.1.1.3 root 685: } else {
1.1.1.5 root 686: strcpy (putcode, "put_word(srca,");
1.1 root 687: }
1.1.1.3 root 688:
1.1.1.17 root 689: printf ("\tuae_u16 mask = %s;\n", gen_nextiword (0));
690: genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 2, 1, 0);
1.1.1.3 root 691: if (using_prefetch)
1.1.1.5 root 692: sync_m68k_pc ();
1.1.1.3 root 693:
1.1.1.5 root 694: start_brace ();
1.1 root 695: if (table68k[opcode].dmode == Apdi) {
1.1.1.3 root 696: printf ("\tuae_u16 amask = mask & 0xff, dmask = (mask >> 8) & 0xff;\n");
697: printf ("\twhile (amask) { srca -= %d; %s m68k_areg(regs, movem_index2[amask])); amask = movem_next[amask]; }\n",
1.1.1.5 root 698: size, putcode);
1.1.1.3 root 699: printf ("\twhile (dmask) { srca -= %d; %s m68k_dreg(regs, movem_index2[dmask])); dmask = movem_next[dmask]; }\n",
1.1.1.5 root 700: size, putcode);
1.1.1.3 root 701: printf ("\tm68k_areg(regs, dstreg) = srca;\n");
1.1.1.2 root 702: } else {
1.1.1.3 root 703: printf ("\tuae_u16 dmask = mask & 0xff, amask = (mask >> 8) & 0xff;\n");
704: printf ("\twhile (dmask) { %s m68k_dreg(regs, movem_index1[dmask])); srca += %d; dmask = movem_next[dmask]; }\n",
1.1.1.5 root 705: putcode, size);
1.1.1.3 root 706: printf ("\twhile (amask) { %s m68k_areg(regs, movem_index1[amask])); srca += %d; amask = movem_next[amask]; }\n",
1.1.1.5 root 707: putcode, size);
1.1 root 708: }
709: }
710:
1.1.1.17 root 711: static void duplicate_carry (int n)
1.1.1.7 root 712: {
1.1.1.17 root 713: while (n-- != 0)
714: printf ("\t");
715: printf ("COPY_CARRY;\n");
1.1.1.7 root 716: }
717:
1.1.1.12 root 718: typedef enum
719: {
720: flag_logical_noclobber, flag_logical, flag_add, flag_sub, flag_cmp, flag_addx, flag_subx, flag_zn,
721: flag_av, flag_sv
722: }
723: flagtypes;
1.1 root 724:
1.1.1.5 root 725: static void genflags_normal (flagtypes type, wordsizes size, char *value, char *src, char *dst)
1.1 root 726: {
1.1.1.5 root 727: char vstr[100], sstr[100], dstr[100];
728: char usstr[100], udstr[100];
729: char unsstr[100], undstr[100];
1.1 root 730:
1.1.1.5 root 731: switch (size) {
1.1 root 732: case sz_byte:
1.1.1.5 root 733: strcpy (vstr, "((uae_s8)(");
734: strcpy (usstr, "((uae_u8)(");
1.1 root 735: break;
736: case sz_word:
1.1.1.5 root 737: strcpy (vstr, "((uae_s16)(");
738: strcpy (usstr, "((uae_u16)(");
1.1 root 739: break;
740: case sz_long:
1.1.1.5 root 741: strcpy (vstr, "((uae_s32)(");
742: strcpy (usstr, "((uae_u32)(");
1.1 root 743: break;
744: default:
1.1.1.5 root 745: abort ();
1.1 root 746: }
1.1.1.5 root 747: strcpy (unsstr, usstr);
1.1 root 748:
1.1.1.5 root 749: strcpy (sstr, vstr);
750: strcpy (dstr, vstr);
751: strcat (vstr, value);
752: strcat (vstr, "))");
753: strcat (dstr, dst);
754: strcat (dstr, "))");
755: strcat (sstr, src);
756: strcat (sstr, "))");
757:
758: strcpy (udstr, usstr);
759: strcat (udstr, dst);
760: strcat (udstr, "))");
761: strcat (usstr, src);
762: strcat (usstr, "))");
763:
764: strcpy (undstr, unsstr);
765: strcat (unsstr, "-");
766: strcat (undstr, "~");
767: strcat (undstr, dst);
768: strcat (undstr, "))");
769: strcat (unsstr, src);
770: strcat (unsstr, "))");
1.1 root 771:
772: switch (type) {
1.1.1.7 root 773: case flag_logical_noclobber:
1.1 root 774: case flag_logical:
775: case flag_zn:
776: case flag_av:
777: case flag_sv:
778: case flag_addx:
779: case flag_subx:
780: break;
1.1.1.3 root 781:
1.1 root 782: case flag_add:
1.1.1.5 root 783: start_brace ();
1.1.1.3 root 784: printf ("uae_u32 %s = %s + %s;\n", value, dstr, sstr);
1.1 root 785: break;
786: case flag_sub:
787: case flag_cmp:
1.1.1.5 root 788: start_brace ();
1.1.1.3 root 789: printf ("uae_u32 %s = %s - %s;\n", value, dstr, sstr);
1.1 root 790: break;
791: }
792:
793: switch (type) {
1.1.1.7 root 794: case flag_logical_noclobber:
1.1 root 795: case flag_logical:
796: case flag_zn:
797: break;
1.1.1.3 root 798:
1.1 root 799: case flag_add:
800: case flag_sub:
801: case flag_addx:
802: case flag_subx:
803: case flag_cmp:
804: case flag_av:
805: case flag_sv:
1.1.1.5 root 806: start_brace ();
807: printf ("\t" BOOL_TYPE " flgs = %s < 0;\n", sstr);
808: printf ("\t" BOOL_TYPE " flgo = %s < 0;\n", dstr);
809: printf ("\t" BOOL_TYPE " flgn = %s < 0;\n", vstr);
1.1 root 810: break;
811: }
1.1.1.3 root 812:
1.1.1.5 root 813: switch (type) {
1.1 root 814: case flag_logical:
1.1.1.7 root 815: printf ("\tCLEAR_CZNV;\n");
816: printf ("\tSET_ZFLG (%s == 0);\n", vstr);
817: printf ("\tSET_NFLG (%s < 0);\n", vstr);
818: break;
819: case flag_logical_noclobber:
820: printf ("\tSET_ZFLG (%s == 0);\n", vstr);
821: printf ("\tSET_NFLG (%s < 0);\n", vstr);
1.1 root 822: break;
823: case flag_av:
1.1.1.7 root 824: printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n");
1.1 root 825: break;
826: case flag_sv:
1.1.1.7 root 827: printf ("\tSET_VFLG ((flgs ^ flgo) & (flgn ^ flgo));\n");
1.1 root 828: break;
829: case flag_zn:
1.1.1.7 root 830: printf ("\tSET_ZFLG (GET_ZFLG & (%s == 0));\n", vstr);
831: printf ("\tSET_NFLG (%s < 0);\n", vstr);
1.1 root 832: break;
833: case flag_add:
1.1.1.7 root 834: printf ("\tSET_ZFLG (%s == 0);\n", vstr);
1.1.1.8 root 835: printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n");
1.1.1.7 root 836: printf ("\tSET_CFLG (%s < %s);\n", undstr, usstr);
1.1.1.17 root 837: duplicate_carry (0);
1.1.1.7 root 838: printf ("\tSET_NFLG (flgn != 0);\n");
1.1 root 839: break;
840: case flag_sub:
1.1.1.7 root 841: printf ("\tSET_ZFLG (%s == 0);\n", vstr);
842: printf ("\tSET_VFLG ((flgs ^ flgo) & (flgn ^ flgo));\n");
843: printf ("\tSET_CFLG (%s > %s);\n", usstr, udstr);
1.1.1.17 root 844: duplicate_carry (0);
1.1.1.7 root 845: printf ("\tSET_NFLG (flgn != 0);\n");
1.1 root 846: break;
847: case flag_addx:
1.1.1.7 root 848: printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n"); /* minterm SON: 0x42 */
849: printf ("\tSET_CFLG (flgs ^ ((flgs ^ flgo) & (flgo ^ flgn)));\n"); /* minterm SON: 0xD4 */
1.1.1.17 root 850: duplicate_carry (0);
1.1 root 851: break;
852: case flag_subx:
1.1.1.7 root 853: printf ("\tSET_VFLG ((flgs ^ flgo) & (flgo ^ flgn));\n"); /* minterm SON: 0x24 */
854: printf ("\tSET_CFLG (flgs ^ ((flgs ^ flgn) & (flgo ^ flgn)));\n"); /* minterm SON: 0xB2 */
1.1.1.17 root 855: duplicate_carry (0);
1.1 root 856: break;
857: case flag_cmp:
1.1.1.7 root 858: printf ("\tSET_ZFLG (%s == 0);\n", vstr);
859: printf ("\tSET_VFLG ((flgs != flgo) && (flgn != flgo));\n");
860: printf ("\tSET_CFLG (%s > %s);\n", usstr, udstr);
861: printf ("\tSET_NFLG (flgn != 0);\n");
1.1 root 862: break;
863: }
864: }
865:
1.1.1.5 root 866: static void genflags (flagtypes type, wordsizes size, char *value, char *src, char *dst)
1.1 root 867: {
1.1.1.11 root 868: /* Temporarily deleted 68k/ARM flag optimizations. I'd prefer to have
869: them in the appropriate m68k.h files and use just one copy of this
870: code here. The API can be changed if necessary. */
871: #ifdef OPTIMIZED_FLAGS
1.1 root 872: switch (type) {
1.1.1.5 root 873: case flag_add:
874: case flag_sub:
875: start_brace ();
1.1.1.3 root 876: printf ("\tuae_u32 %s;\n", value);
1.1 root 877: break;
878:
1.1.1.3 root 879: default:
1.1 root 880: break;
881: }
882:
1.1.1.3 root 883: /* At least some of those casts are fairly important! */
1.1.1.5 root 884: switch (type) {
1.1.1.7 root 885: case flag_logical_noclobber:
1.1.1.11 root 886: printf ("\t{uae_u32 oldcznv = GET_CZNV & ~(FLAGVAL_Z | FLAGVAL_N);\n");
1.1.1.7 root 887: if (strcmp (value, "0") == 0) {
1.1.1.11 root 888: printf ("\tSET_CZNV (olcznv | FLAGVAL_Z);\n");
1.1.1.7 root 889: } else {
890: switch (size) {
1.1.1.11 root 891: case sz_byte: printf ("\toptflag_testb ((uae_s8)(%s));\n", value); break;
892: case sz_word: printf ("\toptflag_testw ((uae_s16)(%s));\n", value); break;
893: case sz_long: printf ("\toptflag_testl ((uae_s32)(%s));\n", value); break;
1.1.1.7 root 894: }
1.1.1.11 root 895: printf ("\tIOR_CZNV (oldcznv);\n");
1.1.1.7 root 896: }
897: printf ("\t}\n");
898: return;
1.1 root 899: case flag_logical:
1.1.1.5 root 900: if (strcmp (value, "0") == 0) {
1.1.1.11 root 901: printf ("\tSET_CZNV (FLAGVAL_Z);\n");
1.1 root 902: } else {
1.1.1.5 root 903: switch (size) {
1.1.1.11 root 904: case sz_byte: printf ("\toptflag_testb ((uae_s8)(%s));\n", value); break;
905: case sz_word: printf ("\toptflag_testw ((uae_s16)(%s));\n", value); break;
906: case sz_long: printf ("\toptflag_testl ((uae_s32)(%s));\n", value); break;
1.1 root 907: }
908: }
909: return;
910:
911: case flag_add:
1.1.1.5 root 912: switch (size) {
1.1.1.11 root 913: case sz_byte: printf ("\toptflag_addb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
914: case sz_word: printf ("\toptflag_addw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
915: case sz_long: printf ("\toptflag_addl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
1.1 root 916: }
917: return;
918:
919: case flag_sub:
1.1.1.5 root 920: switch (size) {
1.1.1.11 root 921: case sz_byte: printf ("\toptflag_subb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
922: case sz_word: printf ("\toptflag_subw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
923: case sz_long: printf ("\toptflag_subl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
1.1 root 924: }
925: return;
926:
927: case flag_cmp:
1.1.1.5 root 928: switch (size) {
1.1.1.11 root 929: case sz_byte: printf ("\toptflag_cmpb ((uae_s8)(%s), (uae_s8)(%s));\n", src, dst); break;
930: case sz_word: printf ("\toptflag_cmpw ((uae_s16)(%s), (uae_s16)(%s));\n", src, dst); break;
931: case sz_long: printf ("\toptflag_cmpl ((uae_s32)(%s), (uae_s32)(%s));\n", src, dst); break;
1.1 root 932: }
933: return;
1.1.1.19 root 934:
1.1.1.3 root 935: default:
936: break;
1.1 root 937: }
938: #endif
1.1.1.11 root 939:
1.1.1.5 root 940: genflags_normal (type, size, value, src, dst);
1.1 root 941: }
1.1.1.3 root 942:
1.1.1.7 root 943: static void force_range_for_rox (const char *var, wordsizes size)
944: {
945: /* Could do a modulo operation here... which one is faster? */
946: switch (size) {
947: case sz_long:
948: printf ("\tif (%s >= 33) %s -= 33;\n", var, var);
949: break;
950: case sz_word:
951: printf ("\tif (%s >= 34) %s -= 34;\n", var, var);
952: printf ("\tif (%s >= 17) %s -= 17;\n", var, var);
953: break;
954: case sz_byte:
955: printf ("\tif (%s >= 36) %s -= 36;\n", var, var);
956: printf ("\tif (%s >= 18) %s -= 18;\n", var, var);
957: printf ("\tif (%s >= 9) %s -= 9;\n", var, var);
958: break;
959: }
960: }
961:
962: static const char *cmask (wordsizes size)
963: {
964: switch (size) {
965: case sz_byte: return "0x80";
966: case sz_word: return "0x8000";
967: case sz_long: return "0x80000000";
968: default: abort ();
969: }
970: }
971:
972: static int source_is_imm1_8 (struct instr *i)
973: {
974: return i->stype == 3;
975: }
976:
1.1.1.5 root 977: static void gen_opcode (unsigned long int opcode)
1.1 root 978: {
1.1.1.7 root 979: struct instr *curi = table68k + opcode;
1.1.1.17 root 980: int tmpc = 0;
1.1.1.11 root 981: insn_n_cycles = 4;
1.1.1.5 root 982:
1.1 root 983: start_brace ();
1.1.1.3 root 984: #if 0
985: printf ("uae_u8 *m68k_pc = regs.pc_p;\n");
986: #endif
987: m68k_pc_offset = 2;
1.1.1.7 root 988: switch (curi->plev) {
1.1.1.11 root 989: case 0: /* not privileged */
1.1 root 990: break;
1.1.1.11 root 991: case 1: /* unprivileged only on 68000 */
1.1.1.3 root 992: if (cpu_level == 0)
1.1 root 993: break;
1.1.1.3 root 994: if (next_cpu_level < 0)
995: next_cpu_level = 0;
996:
1.1.1.5 root 997: /* fall through */
1.1.1.11 root 998: case 2: /* priviledged */
1.1.1.3 root 999: printf ("if (!regs.s) { Exception(8,0); goto %s; }\n", endlabelstr);
1.1.1.5 root 1000: need_endlabel = 1;
1001: start_brace ();
1.1 root 1002: break;
1.1.1.11 root 1003: case 3: /* privileged if size == word */
1.1.1.7 root 1004: if (curi->size == sz_byte)
1.1 root 1005: break;
1.1.1.3 root 1006: printf ("if (!regs.s) { Exception(8,0); goto %s; }\n", endlabelstr);
1.1.1.5 root 1007: need_endlabel = 1;
1008: start_brace ();
1.1 root 1009: break;
1010: }
1.1.1.7 root 1011: switch (curi->mnemo) {
1.1.1.11 root 1012: case i_OR:
1013: case i_AND:
1014: case i_EOR:
1.1.1.17 root 1015: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1016: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
1.1.1.7 root 1017: printf ("\tsrc %c= dst;\n", curi->mnemo == i_OR ? '|' : curi->mnemo == i_AND ? '&' : '^');
1018: genflags (flag_logical, curi->size, "src", "", "");
1.1.1.17 root 1019: if (curi->size == sz_long && isreg (curi->dmode))
1020: tmpc += curi->mnemo == i_AND ? 2 : 4;
1021: fill_prefetch_next_delay (tmpc);
1.1.1.7 root 1022: genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1023: break;
1.1.1.11 root 1024: case i_ORSR:
1025: case i_EORSR:
1.1.1.3 root 1026: printf ("\tMakeSR();\n");
1.1.1.17 root 1027: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1.1.1.7 root 1028: if (curi->size == sz_byte) {
1.1.1.3 root 1029: printf ("\tsrc &= 0xFF;\n");
1.1 root 1030: }
1.1.1.18 root 1031: fill_prefetch_next_delay (4);
1.1.1.7 root 1032: printf ("\tregs.sr %c= src;\n", curi->mnemo == i_EORSR ? '^' : '|');
1.1.1.3 root 1033: printf ("\tMakeFromSR();\n");
1.1 root 1034: break;
1.1.1.11 root 1035: case i_ANDSR:
1.1.1.3 root 1036: printf ("\tMakeSR();\n");
1.1.1.17 root 1037: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1.1.1.7 root 1038: if (curi->size == sz_byte) {
1.1.1.3 root 1039: printf ("\tsrc |= 0xFF00;\n");
1.1 root 1040: }
1.1.1.18 root 1041: fill_prefetch_next_delay (4);
1.1.1.3 root 1042: printf ("\tregs.sr &= src;\n");
1043: printf ("\tMakeFromSR();\n");
1.1 root 1044: break;
1.1.1.11 root 1045: case i_SUB:
1.1.1.17 root 1046: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1047: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
1048: if (isreg (curi->dmode)) {
1049: if (curi->dmode == Dreg && curi->size == sz_long)
1050: tmpc += (curi->smode == imm || curi->smode == immi) ? 4 : 2;
1051: }
1.1.1.18 root 1052: fill_prefetch_next_delay (tmpc);
1.1 root 1053: start_brace ();
1.1.1.7 root 1054: genflags (flag_sub, curi->size, "newv", "src", "dst");
1055: genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1056: break;
1.1.1.11 root 1057: case i_SUBA:
1.1.1.17 root 1058: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1059: genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0, 0);
1060: if (isreg (curi->dmode) && curi->dmode == Areg) {
1061: tmpc += curi->size == sz_long ? 2 : 4;
1062: if (curi->size == sz_long)
1063: tmpc += (isreg (curi->smode) || curi->smode == imm) ? 2 : 0;
1064: }
1065: fill_prefetch_next_delay (tmpc);
1.1 root 1066: start_brace ();
1.1.1.3 root 1067: printf ("\tuae_u32 newv = dst - src;\n");
1.1.1.7 root 1068: genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
1.1 root 1069: break;
1.1.1.11 root 1070: case i_SUBX:
1.1.1.17 root 1071: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, GF_AA);
1072: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, GF_AA);
1073: if ((isreg (curi->smode) && curi->size == sz_long) || !isreg (curi->smode))
1074: tmpc += 2;
1.1.1.18 root 1075: fill_prefetch_next_delay (tmpc);
1.1 root 1076: start_brace ();
1.1.1.7 root 1077: printf ("\tuae_u32 newv = dst - src - (GET_XFLG ? 1 : 0);\n");
1078: genflags (flag_subx, curi->size, "newv", "src", "dst");
1079: genflags (flag_zn, curi->size, "newv", "", "");
1080: genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1081: break;
1.1.1.11 root 1082: case i_SBCD:
1.1.1.17 root 1083: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, GF_AA);
1084: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, GF_AA);
1.1.1.18 root 1085: fill_prefetch_next ();
1.1 root 1086: start_brace ();
1.1.1.7 root 1087: printf ("\tuae_u16 newv_lo = (dst & 0xF) - (src & 0xF) - (GET_XFLG ? 1 : 0);\n");
1.1.1.3 root 1088: printf ("\tuae_u16 newv_hi = (dst & 0xF0) - (src & 0xF0);\n");
1.1.1.14 root 1089: printf ("\tuae_u16 newv, tmp_newv;\n");
1090: printf ("\tint bcd = 0;\n");
1091: printf ("\tnewv = tmp_newv = newv_hi + newv_lo;\n");
1092: printf ("\tif (newv_lo & 0xF0) { newv -= 6; bcd = 6; };\n");
1093: printf ("\tif ((((dst & 0xFF) - (src & 0xFF) - (GET_XFLG ? 1 : 0)) & 0x100) > 0xFF) { newv -= 0x60; }\n");
1094: printf ("\tSET_CFLG ((((dst & 0xFF) - (src & 0xFF) - bcd - (GET_XFLG ? 1 : 0)) & 0x300) > 0xFF);\n");
1.1.1.17 root 1095: duplicate_carry (0);
1.1.1.7 root 1096: genflags (flag_zn, curi->size, "newv", "", "");
1.1.1.14 root 1097: printf ("\tSET_VFLG ((tmp_newv & 0x80) != 0 && (newv & 0x80) == 0);\n");
1.1.1.7 root 1098: genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1099: break;
1.1.1.11 root 1100: case i_ADD:
1.1.1.17 root 1101: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1102: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
1103: if (isreg (curi->dmode)) {
1104: if (curi->dmode == Dreg && curi->size == sz_long)
1.1.1.18 root 1105: tmpc += (curi->smode == imm || curi->smode == immi) ? 4 : 2;
1.1.1.17 root 1106: }
1.1.1.18 root 1107: fill_prefetch_next_delay (tmpc);
1.1 root 1108: start_brace ();
1.1.1.7 root 1109: genflags (flag_add, curi->size, "newv", "src", "dst");
1110: genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1111: break;
1.1.1.11 root 1112: case i_ADDA:
1.1.1.17 root 1113: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1114: genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0, 0);
1115: if (isreg (curi->dmode) && curi->dmode == Areg) {
1116: tmpc += curi->size == sz_long ? 2 : 4;
1117: if (curi->size == sz_long)
1118: tmpc += (isreg (curi->smode) || curi->smode == imm) ? 2 : 0;
1119: }
1.1.1.18 root 1120: fill_prefetch_next_delay (tmpc);
1.1 root 1121: start_brace ();
1.1.1.3 root 1122: printf ("\tuae_u32 newv = dst + src;\n");
1.1.1.7 root 1123: genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
1.1 root 1124: break;
1.1.1.11 root 1125: case i_ADDX:
1.1.1.17 root 1126: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, GF_AA);
1127: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, GF_AA);
1128: if ((isreg (curi->smode) && curi->size == sz_long) || !isreg (curi->smode))
1129: tmpc += 2;
1.1.1.18 root 1130: fill_prefetch_next_delay (tmpc);
1.1 root 1131: start_brace ();
1.1.1.7 root 1132: printf ("\tuae_u32 newv = dst + src + (GET_XFLG ? 1 : 0);\n");
1133: genflags (flag_addx, curi->size, "newv", "src", "dst");
1134: genflags (flag_zn, curi->size, "newv", "", "");
1135: genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1136: break;
1.1.1.11 root 1137: case i_ABCD:
1.1.1.17 root 1138: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, GF_AA);
1139: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, GF_AA);
1.1.1.18 root 1140: fill_prefetch_next ();
1.1 root 1141: start_brace ();
1.1.1.7 root 1142: printf ("\tuae_u16 newv_lo = (src & 0xF) + (dst & 0xF) + (GET_XFLG ? 1 : 0);\n");
1.1.1.3 root 1143: printf ("\tuae_u16 newv_hi = (src & 0xF0) + (dst & 0xF0);\n");
1.1.1.14 root 1144: printf ("\tuae_u16 newv, tmp_newv;\n");
1.1.1.7 root 1145: printf ("\tint cflg;\n");
1.1.1.14 root 1146: printf ("\tnewv = tmp_newv = newv_hi + newv_lo;");
1147: printf ("\tif (newv_lo > 9) { newv += 6; }\n");
1148: printf ("\tcflg = (newv & 0x3F0) > 0x90;\n");
1149: printf ("\tif (cflg) newv += 0x60;\n");
1.1.1.12 root 1150: printf ("\tSET_CFLG (cflg);\n");
1.1.1.17 root 1151: duplicate_carry (0);
1.1.1.7 root 1152: genflags (flag_zn, curi->size, "newv", "", "");
1.1.1.14 root 1153: printf ("\tSET_VFLG ((tmp_newv & 0x80) == 0 && (newv & 0x80) != 0);\n");
1.1.1.7 root 1154: genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1155: break;
1.1.1.11 root 1156: case i_NEG:
1.1.1.17 root 1157: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1158: if (isreg (curi->smode) && curi->size == sz_long) tmpc += 2;
1.1.1.18 root 1159: fill_prefetch_next_delay (tmpc);
1.1 root 1160: start_brace ();
1.1.1.7 root 1161: genflags (flag_sub, curi->size, "dst", "src", "0");
1162: genastore ("dst", curi->smode, "srcreg", curi->size, "src");
1.1 root 1163: break;
1.1.1.11 root 1164: case i_NEGX:
1.1.1.17 root 1165: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1166: if (isreg (curi->smode) && curi->size == sz_long) tmpc += 2;
1.1.1.18 root 1167: fill_prefetch_next_delay (tmpc);
1.1 root 1168: start_brace ();
1.1.1.7 root 1169: printf ("\tuae_u32 newv = 0 - src - (GET_XFLG ? 1 : 0);\n");
1170: genflags (flag_subx, curi->size, "newv", "src", "0");
1171: genflags (flag_zn, curi->size, "newv", "", "");
1172: genastore ("newv", curi->smode, "srcreg", curi->size, "src");
1.1 root 1173: break;
1.1.1.11 root 1174: case i_NBCD:
1.1.1.17 root 1175: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1176: if (isreg (curi->smode)) tmpc += 2;
1.1.1.18 root 1177: fill_prefetch_next_delay (tmpc);
1.1 root 1178: start_brace ();
1.1.1.7 root 1179: printf ("\tuae_u16 newv_lo = - (src & 0xF) - (GET_XFLG ? 1 : 0);\n");
1.1.1.3 root 1180: printf ("\tuae_u16 newv_hi = - (src & 0xF0);\n");
1181: printf ("\tuae_u16 newv;\n");
1.1.1.7 root 1182: printf ("\tint cflg;\n");
1.1.1.14 root 1183: printf ("\tif (newv_lo > 9) { newv_lo -= 6; }\n");
1184: printf ("\tnewv = newv_hi + newv_lo;");
1185: printf ("\tcflg = (newv & 0x1F0) > 0x90;\n");
1186: printf ("\tif (cflg) newv -= 0x60;\n");
1.1.1.12 root 1187: printf ("\tSET_CFLG (cflg);\n");
1.1.1.17 root 1188: duplicate_carry (0);
1.1.1.7 root 1189: genflags (flag_zn, curi->size, "newv", "", "");
1190: genastore ("newv", curi->smode, "srcreg", curi->size, "src");
1.1 root 1191: break;
1.1.1.11 root 1192: case i_CLR:
1.1.1.17 root 1193: genamode (curi->smode, "srcreg", curi->size, "src", cpu_level == 0 ? 1 : 2, 0, 0);
1194: if (isreg (curi->smode) && curi->size == sz_long) tmpc += 2;
1.1.1.18 root 1195: fill_prefetch_next_delay (tmpc);
1.1.1.7 root 1196: genflags (flag_logical, curi->size, "0", "", "");
1197: genastore ("0", curi->smode, "srcreg", curi->size, "src");
1.1 root 1198: break;
1.1.1.11 root 1199: case i_NOT:
1.1.1.17 root 1200: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1201: if (isreg (curi->smode) && curi->size == sz_long) tmpc += 2;
1.1.1.18 root 1202: fill_prefetch_next_delay (tmpc);
1.1 root 1203: start_brace ();
1.1.1.3 root 1204: printf ("\tuae_u32 dst = ~src;\n");
1.1.1.7 root 1205: genflags (flag_logical, curi->size, "dst", "", "");
1206: genastore ("dst", curi->smode, "srcreg", curi->size, "src");
1.1 root 1207: break;
1.1.1.11 root 1208: case i_TST:
1.1.1.17 root 1209: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1.1.1.18 root 1210: fill_prefetch_next ();
1.1.1.7 root 1211: genflags (flag_logical, curi->size, "src", "", "");
1.1 root 1212: break;
1.1.1.11 root 1213: case i_BTST:
1.1.1.17 root 1214: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1215: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
1216: if (isreg (curi->dmode)) tmpc += 2;
1.1.1.18 root 1217: fill_prefetch_next_delay (tmpc);
1.1.1.7 root 1218: if (curi->size == sz_byte)
1.1.1.3 root 1219: printf ("\tsrc &= 7;\n");
1.1 root 1220: else
1.1.1.3 root 1221: printf ("\tsrc &= 31;\n");
1.1.1.7 root 1222: printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n");
1.1 root 1223: break;
1.1.1.11 root 1224: case i_BCHG:
1.1.1.17 root 1225: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1226: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
1227: if (isreg (curi->dmode)) tmpc += 4;
1.1.1.18 root 1228: fill_prefetch_next_delay (tmpc);
1.1.1.7 root 1229: if (curi->size == sz_byte)
1.1.1.3 root 1230: printf ("\tsrc &= 7;\n");
1.1 root 1231: else
1.1.1.3 root 1232: printf ("\tsrc &= 31;\n");
1233: printf ("\tdst ^= (1 << src);\n");
1.1.1.9 root 1234: printf ("\tSET_ZFLG (((uae_u32)dst & (1 << src)) >> src);\n");
1.1.1.7 root 1235: genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1236: break;
1.1.1.11 root 1237: case i_BCLR:
1.1.1.17 root 1238: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1239: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
1240: if (isreg (curi->dmode)) tmpc += 4;
1.1.1.18 root 1241: fill_prefetch_next_delay (tmpc);
1.1.1.7 root 1242: if (curi->size == sz_byte)
1.1.1.3 root 1243: printf ("\tsrc &= 7;\n");
1.1 root 1244: else
1.1.1.3 root 1245: printf ("\tsrc &= 31;\n");
1.1.1.7 root 1246: printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n");
1.1.1.3 root 1247: printf ("\tdst &= ~(1 << src);\n");
1.1.1.7 root 1248: genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1249: break;
1.1.1.11 root 1250: case i_BSET:
1.1.1.17 root 1251: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1252: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
1253: if (isreg (curi->dmode)) tmpc += 4;
1.1.1.18 root 1254: fill_prefetch_next_delay (tmpc);
1.1.1.7 root 1255: if (curi->size == sz_byte)
1.1.1.3 root 1256: printf ("\tsrc &= 7;\n");
1.1 root 1257: else
1.1.1.3 root 1258: printf ("\tsrc &= 31;\n");
1.1.1.7 root 1259: printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n");
1.1.1.3 root 1260: printf ("\tdst |= (1 << src);\n");
1.1.1.7 root 1261: genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1262: break;
1.1.1.11 root 1263: case i_CMPM:
1.1.1.17 root 1264: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, GF_AA);
1265: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, GF_AA);
1.1.1.18 root 1266: fill_prefetch_next ();
1.1.1.17 root 1267: start_brace ();
1268: genflags (flag_cmp, curi->size, "newv", "src", "dst");
1269: break;
1.1.1.11 root 1270: case i_CMP:
1.1.1.17 root 1271: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1272: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
1273: if (isreg (curi->dmode)) {
1274: if (curi->dmode == Areg || (curi->dmode == Dreg && curi->size == sz_long))
1275: tmpc += 2;
1276: }
1.1.1.18 root 1277: fill_prefetch_next_delay (tmpc);
1.1 root 1278: start_brace ();
1.1.1.7 root 1279: genflags (flag_cmp, curi->size, "newv", "src", "dst");
1.1 root 1280: break;
1.1.1.11 root 1281: case i_CMPA:
1.1.1.17 root 1282: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1283: genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0, 0);
1284: if (isreg (curi->dmode)) {
1285: if (curi->dmode == Areg || (curi->dmode == Dreg && curi->size == sz_long))
1286: tmpc += 2;
1287: }
1.1.1.18 root 1288: fill_prefetch_next_delay (tmpc);
1.1 root 1289: start_brace ();
1.1.1.5 root 1290: genflags (flag_cmp, sz_long, "newv", "src", "dst");
1.1 root 1291: break;
1292: /* The next two are coded a little unconventional, but they are doing
1293: * weird things... */
1.1.1.11 root 1294: case i_MVPRM:
1.1.1.17 root 1295: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1296: printf ("\tuaecptr memp = m68k_areg(regs, dstreg) + (uae_s32)(uae_s16)%s;\n", gen_nextiword (0));
1.1.1.18 root 1297: fill_prefetch_next ();
1.1.1.7 root 1298: if (curi->size == sz_word) {
1.1.1.3 root 1299: printf ("\tput_byte(memp, src >> 8); put_byte(memp + 2, src);\n");
1.1 root 1300: } else {
1.1.1.3 root 1301: printf ("\tput_byte(memp, src >> 24); put_byte(memp + 2, src >> 16);\n");
1302: printf ("\tput_byte(memp + 4, src >> 8); put_byte(memp + 6, src);\n");
1.1 root 1303: }
1304: break;
1.1.1.11 root 1305: case i_MVPMR:
1.1.1.17 root 1306: printf ("\tuaecptr memp = m68k_areg(regs, srcreg) + (uae_s32)(uae_s16)%s;\n", gen_nextiword (0));
1307: genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0, 0);
1.1.1.7 root 1308: if (curi->size == sz_word) {
1.1.1.3 root 1309: printf ("\tuae_u16 val = (get_byte(memp) << 8) + get_byte(memp + 2);\n");
1.1 root 1310: } else {
1.1.1.3 root 1311: printf ("\tuae_u32 val = (get_byte(memp) << 24) + (get_byte(memp + 2) << 16)\n");
1312: printf (" + (get_byte(memp + 4) << 8) + get_byte(memp + 6);\n");
1.1 root 1313: }
1.1.1.17 root 1314: fill_prefetch_next ();
1.1.1.7 root 1315: genastore ("val", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1316: break;
1.1.1.11 root 1317: case i_MOVE:
1.1.1.17 root 1318: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1319: genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0, GF_APDI);
1.1.1.7 root 1320: genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
1.1.1.17 root 1321: genflags (flag_logical, curi->size, "src", "", "");
1322: sync_m68k_pc ();
1323: fill_prefetch_next ();
1.1 root 1324: break;
1.1.1.11 root 1325: case i_MOVEA:
1.1.1.17 root 1326: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1327: genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0, GF_APDI);
1.1.1.7 root 1328: if (curi->size == sz_word) {
1.1.1.3 root 1329: printf ("\tuae_u32 val = (uae_s32)(uae_s16)src;\n");
1.1 root 1330: } else {
1.1.1.3 root 1331: printf ("\tuae_u32 val = src;\n");
1.1 root 1332: }
1.1.1.18 root 1333: fill_prefetch_next ();
1.1.1.7 root 1334: genastore ("val", curi->dmode, "dstreg", sz_long, "dst");
1.1 root 1335: break;
1.1.1.11 root 1336: case i_MVSR2:
1.1.1.17 root 1337: genamode (curi->smode, "srcreg", sz_word, "src", 2, 0, 0);
1338: if (isreg (curi->smode)) tmpc += 2;
1.1.1.18 root 1339: fill_prefetch_next_delay (tmpc);
1.1.1.3 root 1340: printf ("\tMakeSR();\n");
1.1.1.7 root 1341: if (curi->size == sz_byte)
1342: genastore ("regs.sr & 0xff", curi->smode, "srcreg", sz_word, "src");
1.1 root 1343: else
1.1.1.7 root 1344: genastore ("regs.sr", curi->smode, "srcreg", sz_word, "src");
1.1 root 1345: break;
1.1.1.11 root 1346: case i_MV2SR:
1.1.1.17 root 1347: genamode (curi->smode, "srcreg", sz_word, "src", 1, 0, 0);
1348: if (curi->size == sz_byte) {
1349: tmpc += 8;
1.1.1.3 root 1350: printf ("\tMakeSR();\n\tregs.sr &= 0xFF00;\n\tregs.sr |= src & 0xFF;\n");
1.1.1.17 root 1351: } else {
1352: tmpc += 4;
1.1.1.3 root 1353: printf ("\tregs.sr = src;\n");
1.1 root 1354: }
1.1.1.18 root 1355: fill_prefetch_next_delay (tmpc);
1.1.1.3 root 1356: printf ("\tMakeFromSR();\n");
1.1 root 1357: break;
1.1.1.11 root 1358: case i_SWAP:
1.1.1.17 root 1359: genamode (curi->smode, "srcreg", sz_long, "src", 1, 0, 0);
1.1.1.18 root 1360: fill_prefetch_next ();
1.1 root 1361: start_brace ();
1.1.1.3 root 1362: printf ("\tuae_u32 dst = ((src >> 16)&0xFFFF) | ((src&0xFFFF)<<16);\n");
1.1.1.5 root 1363: genflags (flag_logical, sz_long, "dst", "", "");
1.1.1.7 root 1364: genastore ("dst", curi->smode, "srcreg", sz_long, "src");
1.1 root 1365: break;
1.1.1.11 root 1366: case i_EXG:
1.1.1.17 root 1367: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1368: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
1.1.1.18 root 1369: fill_prefetch_next_delay (2);
1.1.1.7 root 1370: genastore ("dst", curi->smode, "srcreg", curi->size, "src");
1371: genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1372: break;
1.1.1.11 root 1373: case i_EXT:
1.1.1.17 root 1374: genamode (curi->smode, "srcreg", sz_long, "src", 1, 0, 0);
1.1.1.18 root 1375: fill_prefetch_next ();
1.1 root 1376: start_brace ();
1.1.1.7 root 1377: switch (curi->size) {
1.1.1.11 root 1378: case sz_byte: printf ("\tuae_u32 dst = (uae_s32)(uae_s8)src;\n"); break;
1379: case sz_word: printf ("\tuae_u16 dst = (uae_s16)(uae_s8)src;\n"); break;
1380: case sz_long: printf ("\tuae_u32 dst = (uae_s32)(uae_s16)src;\n"); break;
1381: default: abort ();
1.1 root 1382: }
1.1.1.5 root 1383: genflags (flag_logical,
1.1.1.7 root 1384: curi->size == sz_word ? sz_word : sz_long, "dst", "", "");
1385: genastore ("dst", curi->smode, "srcreg",
1386: curi->size == sz_word ? sz_word : sz_long, "src");
1.1 root 1387: break;
1.1.1.11 root 1388: case i_MVMEL:
1.1.1.5 root 1389: genmovemel (opcode);
1.1.1.18 root 1390: fill_prefetch_next ();
1.1 root 1391: break;
1.1.1.11 root 1392: case i_MVMLE:
1.1.1.5 root 1393: genmovemle (opcode);
1.1.1.18 root 1394: fill_prefetch_next ();
1.1 root 1395: break;
1.1.1.11 root 1396: case i_TRAP:
1.1.1.17 root 1397: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1.1.1.5 root 1398: sync_m68k_pc ();
1.1.1.3 root 1399: printf ("\tException(src+32,0);\n");
1.1.1.17 root 1400: did_prefetch = 1;
1.1.1.3 root 1401: m68k_pc_offset = 0;
1.1 root 1402: break;
1.1.1.11 root 1403: case i_MVR2USP:
1.1.1.17 root 1404: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1.1.1.18 root 1405: fill_prefetch_next ();
1.1.1.3 root 1406: printf ("\tregs.usp = src;\n");
1.1 root 1407: break;
1.1.1.11 root 1408: case i_MVUSP2R:
1.1.1.17 root 1409: genamode (curi->smode, "srcreg", curi->size, "src", 2, 0, 0);
1.1.1.18 root 1410: fill_prefetch_next ();
1.1.1.7 root 1411: genastore ("regs.usp", curi->smode, "srcreg", curi->size, "src");
1.1 root 1412: break;
1.1.1.11 root 1413: case i_RESET:
1.1.1.18 root 1414: fill_prefetch_next ();
1.1.1.17 root 1415: printf ("\tcpureset();\n");
1.1 root 1416: break;
1.1.1.11 root 1417: case i_NOP:
1.1.1.18 root 1418: fill_prefetch_next ();
1.1 root 1419: break;
1.1.1.11 root 1420: case i_STOP:
1.1.1.17 root 1421: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1.1.1.3 root 1422: printf ("\tregs.sr = src;\n");
1423: printf ("\tMakeFromSR();\n");
1424: printf ("\tm68k_setstopped(1);\n");
1.1.1.17 root 1425: sync_m68k_pc ();
1426: fill_prefetch_full ();
1.1 root 1427: break;
1.1.1.11 root 1428: case i_RTE:
1.1.1.3 root 1429: if (cpu_level == 0) {
1.1.1.17 root 1430: genamode (Aipi, "7", sz_word, "sr", 1, 0, GF_NOREFILL);
1431: genamode (Aipi, "7", sz_long, "pc", 1, 0, GF_NOREFILL);
1432: printf ("\tregs.sr = sr; m68k_setpc (pc);\n");
1.1.1.3 root 1433: printf ("\tMakeFromSR();\n");
1434: } else {
1.1 root 1435: int old_brace_level = n_braces;
1.1.1.3 root 1436: if (next_cpu_level < 0)
1437: next_cpu_level = 0;
1438: printf ("\tuae_u16 newsr; uae_u32 newpc; for (;;) {\n");
1.1.1.17 root 1439: genamode (Aipi, "7", sz_word, "sr", 1, 0, 0);
1440: genamode (Aipi, "7", sz_long, "pc", 1, 0, 0);
1441: genamode (Aipi, "7", sz_word, "format", 1, 0, 0);
1.1.1.3 root 1442: printf ("\tnewsr = sr; newpc = pc;\n");
1443: printf ("\tif ((format & 0xF000) == 0x0000) { break; }\n");
1444: printf ("\telse if ((format & 0xF000) == 0x1000) { ; }\n");
1445: printf ("\telse if ((format & 0xF000) == 0x2000) { m68k_areg(regs, 7) += 4; break; }\n");
1446: printf ("\telse if ((format & 0xF000) == 0x8000) { m68k_areg(regs, 7) += 50; break; }\n");
1447: printf ("\telse if ((format & 0xF000) == 0x9000) { m68k_areg(regs, 7) += 12; break; }\n");
1448: printf ("\telse if ((format & 0xF000) == 0xa000) { m68k_areg(regs, 7) += 24; break; }\n");
1449: printf ("\telse if ((format & 0xF000) == 0xb000) { m68k_areg(regs, 7) += 84; break; }\n");
1450: printf ("\telse { Exception(14,0); goto %s; }\n", endlabelstr);
1451: printf ("\tregs.sr = newsr; MakeFromSR();\n}\n");
1.1 root 1452: pop_braces (old_brace_level);
1.1.1.3 root 1453: printf ("\tregs.sr = newsr; MakeFromSR();\n");
1.1.1.17 root 1454: printf ("\tif (newpc & 1)\n");
1455: printf ("\t\texception3 (0x%04.4X, m68k_getpc(), newpc);\n", opcode);
1456: printf ("\telse\n");
1457: printf ("\t\tm68k_setpc (newpc);\n");
1.1.1.5 root 1458: need_endlabel = 1;
1.1 root 1459: }
1.1.1.3 root 1460: /* PC is set and prefetch filled. */
1461: m68k_pc_offset = 0;
1.1.1.17 root 1462: fill_prefetch_full ();
1.1 root 1463: break;
1.1.1.11 root 1464: case i_RTD:
1.1.1.17 root 1465: genamode (Aipi, "7", sz_long, "pc", 1, 0, 0);
1466: genamode (curi->smode, "srcreg", curi->size, "offs", 1, 0, 0);
1.1.1.3 root 1467: printf ("\tm68k_areg(regs, 7) += offs;\n");
1.1.1.18 root 1468: printf ("\tif (pc & 1)\n");
1469: printf ("\t\texception3 (0x%04.4X, m68k_getpc(), pc);\n", opcode);
1470: printf ("\telse\n");
1.1.1.17 root 1471: printf ("\t\tm68k_setpc (pc);\n");
1.1.1.3 root 1472: /* PC is set and prefetch filled. */
1473: m68k_pc_offset = 0;
1.1.1.17 root 1474: fill_prefetch_full ();
1.1 root 1475: break;
1.1.1.11 root 1476: case i_LINK:
1.1.1.17 root 1477: genamode (Apdi, "7", sz_long, "old", 2, 0, 0);
1478: genamode (curi->smode, "srcreg", sz_long, "src", 1, 0, 0);
1.1.1.3 root 1479: genastore ("src", Apdi, "7", sz_long, "old");
1.1.1.7 root 1480: genastore ("m68k_areg(regs, 7)", curi->smode, "srcreg", sz_long, "src");
1.1.1.17 root 1481: genamode (curi->dmode, "dstreg", curi->size, "offs", 1, 0, 0);
1.1.1.3 root 1482: printf ("\tm68k_areg(regs, 7) += offs;\n");
1.1.1.18 root 1483: fill_prefetch_next ();
1.1 root 1484: break;
1.1.1.11 root 1485: case i_UNLK:
1.1.1.17 root 1486: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1.1.1.3 root 1487: printf ("\tm68k_areg(regs, 7) = src;\n");
1.1.1.17 root 1488: genamode (Aipi, "7", sz_long, "old", 1, 0, 0);
1.1.1.18 root 1489: fill_prefetch_next ();
1.1.1.7 root 1490: genastore ("old", curi->smode, "srcreg", curi->size, "src");
1.1 root 1491: break;
1.1.1.11 root 1492: case i_RTS:
1.1.1.3 root 1493: printf ("\tm68k_do_rts();\n");
1494: m68k_pc_offset = 0;
1.1.1.17 root 1495: fill_prefetch_full ();
1.1 root 1496: break;
1.1.1.11 root 1497: case i_TRAPV:
1.1.1.3 root 1498: sync_m68k_pc ();
1.1.1.17 root 1499: printf ("\tif (GET_VFLG) {\n");
1500: printf ("\t\tException (7, m68k_getpc ());\n");
1501: printf ("\t\tgoto %s;\n", endlabelstr);
1502: printf ("\t}\n");
1.1.1.18 root 1503: fill_prefetch_next ();
1.1.1.5 root 1504: need_endlabel = 1;
1.1 root 1505: break;
1.1.1.11 root 1506: case i_RTR:
1.1.1.3 root 1507: printf ("\tMakeSR();\n");
1.1.1.17 root 1508: genamode (Aipi, "7", sz_word, "sr", 1, 0, 0);
1509: genamode (Aipi, "7", sz_long, "pc", 1, 0, 0);
1.1.1.3 root 1510: printf ("\tregs.sr &= 0xFF00; sr &= 0xFF;\n");
1511: printf ("\tregs.sr |= sr; m68k_setpc(pc);\n");
1512: printf ("\tMakeFromSR();\n");
1513: m68k_pc_offset = 0;
1.1.1.17 root 1514: fill_prefetch_full ();
1.1 root 1515: break;
1.1.1.11 root 1516: case i_JSR:
1.1.1.17 root 1517: genamode (curi->smode, "srcreg", curi->size, "src", 0, 0, GF_AA|GF_NOREFILL);
1518: start_brace ();
1519: printf ("\tuaecptr oldpc = m68k_getpc() + %d;\n", m68k_pc_offset);
1520: if (using_exception_3) {
1521: printf ("\tif (srca & 1) {\n");
1522: printf ("\t\texception3i (opcode, oldpc, srca);\n");
1523: printf ("\t\tgoto %s;\n", endlabelstr);
1524: printf ("\t}\n");
1525: need_endlabel = 1;
1526: }
1527: printf ("\tm68k_setpc (srca);\n");
1.1.1.3 root 1528: m68k_pc_offset = 0;
1.1.1.17 root 1529: fill_prefetch_1 (0, 0);
1.1.1.18 root 1530: printf("\tm68k_areg (regs, 7) -= 4;\n");
1.1.1.17 root 1531: printf("\tput_long (m68k_areg (regs, 7), oldpc);\n");
1.1.1.18 root 1532: fill_prefetch_next ();
1.1.1.3 root 1533: break;
1.1.1.11 root 1534: case i_JMP:
1.1.1.17 root 1535: genamode (curi->smode, "srcreg", curi->size, "src", 0, 0, GF_AA|GF_NOREFILL);
1536: if (using_exception_3) {
1537: printf ("\tif (srca & 1) {\n");
1538: printf ("\t\texception3i (opcode, m68k_getpc() + 6, srca);\n");
1539: printf ("\t\tgoto %s;\n", endlabelstr);
1540: printf ("\t}\n");
1541: need_endlabel = 1;
1542: }
1.1.1.3 root 1543: printf ("\tm68k_setpc(srca);\n");
1544: m68k_pc_offset = 0;
1.1.1.17 root 1545: fill_prefetch_full ();
1.1 root 1546: break;
1.1.1.11 root 1547: case i_BSR:
1.1.1.17 root 1548: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, GF_AA|GF_NOREFILL);
1.1.1.3 root 1549: printf ("\tuae_s32 s = (uae_s32)src + 2;\n");
1550: if (using_exception_3) {
1551: printf ("\tif (src & 1) {\n");
1.1.1.17 root 1552: printf ("\t\texception3i (opcode, m68k_getpc() + 2, m68k_getpc() + s);\n");
1553: printf ("\t\tgoto %s;\n", endlabelstr);
1.1.1.3 root 1554: printf ("\t}\n");
1.1.1.5 root 1555: need_endlabel = 1;
1.1.1.3 root 1556: }
1557: printf ("\tm68k_do_bsr(m68k_getpc() + %d, s);\n", m68k_pc_offset);
1558: m68k_pc_offset = 0;
1.1.1.17 root 1559: fill_prefetch_full ();
1.1 root 1560: break;
1.1.1.11 root 1561: case i_Bcc:
1.1.1.7 root 1562: if (curi->size == sz_long) {
1.1.1.3 root 1563: if (cpu_level < 2) {
1.1.1.17 root 1564: printf ("\tif (cctrue(%d)) {\n", curi->cc, endlabelstr);
1565: printf ("\t\texception3i (opcode, m68k_getpc() + 2, m68k_getpc() + 1);\n");
1566: printf ("\t\tgoto %s;\n", endlabelstr);
1567: printf ("\t}\n");
1568: sync_m68k_pc ();
1.1.1.18 root 1569: irc2ir ();
1.1.1.17 root 1570: fill_prefetch_2 ();
1571: printf ("\tgoto %s;\n", endlabelstr);
1.1.1.5 root 1572: need_endlabel = 1;
1.1.1.3 root 1573: } else {
1574: if (next_cpu_level < 1)
1575: next_cpu_level = 1;
1576: }
1577: }
1.1.1.17 root 1578: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, GF_AA|GF_NOREFILL);
1.1.1.7 root 1579: printf ("\tif (!cctrue(%d)) goto didnt_jump;\n", curi->cc);
1.1.1.3 root 1580: if (using_exception_3) {
1581: printf ("\tif (src & 1) {\n");
1.1.1.17 root 1582: printf ("\t\texception3i (opcode, m68k_getpc() + 2, m68k_getpc() + 2 + (uae_s32)src);\n");
1583: printf ("\t\tgoto %s;\n", endlabelstr);
1.1.1.3 root 1584: printf ("\t}\n");
1.1.1.5 root 1585: need_endlabel = 1;
1.1.1.3 root 1586: }
1.1.1.17 root 1587: if (using_prefetch) {
1588: if (curi->size == sz_byte) {
1589: printf ("\tm68k_incpc ((uae_s32)src + 2);\n");
1590: } else {
1591: printf ("\tm68k_incpc ((uae_s32)src + 2);\n");
1592: }
1593: fill_prefetch_full ();
1594: if (using_ce)
1595: printf ("\treturn;\n");
1596: else
1597: printf ("\treturn 10 * %d;\n", CYCLE_UNIT / 2);
1598: } else {
1599: printf ("\tm68k_incpc ((uae_s32)src + 2);\n");
1600: returncycles ("\t", 10);
1601: }
1.1.1.3 root 1602: printf ("didnt_jump:;\n");
1.1.1.5 root 1603: need_endlabel = 1;
1.1.1.17 root 1604: sync_m68k_pc ();
1605: if (curi->size == sz_byte) {
1606: irc2ir ();
1607: fill_prefetch_2 ();
1608: } else
1609: fill_prefetch_full ();
1.1.1.11 root 1610: insn_n_cycles = curi->size == sz_byte ? 8 : 12;
1.1 root 1611: break;
1.1.1.11 root 1612: case i_LEA:
1.1.1.17 root 1613: genamode (curi->smode, "srcreg", curi->size, "src", 0, 0, GF_AA);
1614: genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0, GF_AA);
1615: if (curi->smode == Ad8r || curi->smode == PC8r)
1616: tmpc += 4;
1.1.1.18 root 1617: fill_prefetch_next_delay (tmpc);
1.1.1.7 root 1618: genastore ("srca", curi->dmode, "dstreg", curi->size, "dst");
1.1 root 1619: break;
1.1.1.11 root 1620: case i_PEA:
1.1.1.17 root 1621: genamode (curi->smode, "srcreg", curi->size, "src", 0, 0, GF_AA);
1622: genamode (Apdi, "7", sz_long, "dst", 2, 0, GF_AA);
1623: if (curi->smode == Ad8r || curi->smode == PC8r)
1624: tmpc += 4;
1.1.1.18 root 1625: fill_prefetch_next_delay (tmpc);
1.1.1.3 root 1626: genastore ("srca", Apdi, "7", sz_long, "dst");
1.1 root 1627: break;
1.1.1.11 root 1628: case i_DBcc:
1.1.1.17 root 1629: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, GF_AA|GF_NOREFILL);
1630: genamode (curi->dmode, "dstreg", curi->size, "offs", 1, 0, GF_AA|GF_NOREFILL);
1.1.1.3 root 1631:
1.1.1.17 root 1632: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.7 root 1633: printf ("\tif (!cctrue(%d)) {\n", curi->cc);
1.1.1.17 root 1634: printf ("\t\tm68k_incpc((uae_s32)offs + 2);\n");
1635: printf ("\t"); fill_prefetch_1 (0, 0);
1636: printf ("\t"); genastore ("(src-1)", curi->smode, "srcreg", curi->size, "src");
1.1.1.3 root 1637:
1638: printf ("\t\tif (src) {\n");
1639: if (using_exception_3) {
1640: printf ("\t\t\tif (offs & 1) {\n");
1.1.1.17 root 1641: printf ("\t\t\t\texception3i (opcode, m68k_getpc() + 2, m68k_getpc() + 2 + (uae_s32)offs + 2);\n");
1642: printf ("\t\t\t\tgoto %s;\n", endlabelstr);
1643: printf ("\t\t\t}\n");
1.1.1.5 root 1644: need_endlabel = 1;
1.1.1.3 root 1645: }
1.1.1.17 root 1646: irc2ir ();
1647: fill_prefetch_1 (2, 0);
1648: returncycles ("\t\t\t", 12);
1.1.1.3 root 1649: printf ("\t\t}\n");
1.1.1.17 root 1650: printf ("\t} else {\n");
1.1.1.3 root 1651: printf ("\t}\n");
1.1.1.17 root 1652: printf ("\tm68k_setpc (oldpc + %d);\n", m68k_pc_offset);
1653: m68k_pc_offset = 0;
1654: fill_prefetch_full ();
1.1.1.11 root 1655: insn_n_cycles = 12;
1.1.1.5 root 1656: need_endlabel = 1;
1.1 root 1657: break;
1.1.1.11 root 1658: case i_Scc:
1.1.1.17 root 1659: genamode (curi->smode, "srcreg", curi->size, "src", cpu_level == 0 ? 1 : 2, 0, 0);
1.1 root 1660: start_brace ();
1.1.1.18 root 1661: fill_prefetch_next_cycles ();
1.1.1.7 root 1662: printf ("\tint val = cctrue(%d) ? 0xff : 0;\n", curi->cc);
1663: genastore ("val", curi->smode, "srcreg", curi->size, "src");
1.1 root 1664: break;
1.1.1.11 root 1665: case i_DIVU:
1.1.1.3 root 1666: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.17 root 1667: genamode (curi->smode, "srcreg", sz_word, "src", 1, 0, 0);
1668: genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0, 0);
1.1.1.18 root 1669: fill_prefetch_next_cycles ();
1.1.1.10 root 1670: sync_m68k_pc ();
1.1.1.17 root 1671: printf ("\tCLEAR_CZNV;\n");
1672: printf ("\tif (src == 0) {\n");
1673: if (cpu_level > 0) {
1674: /* 68020 sets V when dividing by zero and N if dst is negative
1675: * 68000 clears both
1676: */
1677: printf("\t\tSET_VFLG (1);\n");
1678: printf("\t\tif (dst < 0) SET_NFLG (1);\n");
1.1.1.19 root 1679: }
1.1.1.17 root 1680: printf ("\t\tException (5, oldpc);\n");
1681: printf ("\t\tgoto %s;\n", endlabelstr);
1682: printf ("\t} else {\n");
1683: printf ("\t\tuae_u32 newv = (uae_u32)dst / (uae_u32)(uae_u16)src;\n");
1684: printf ("\t\tuae_u32 rem = (uae_u32)dst %% (uae_u32)(uae_u16)src;\n");
1685: if (using_ce) {
1686: printf ("\t\tint cycles = 138 * %d - lostcycles;\n", CYCLE_UNIT / 2);
1687: }
1.1 root 1688: /* The N flag appears to be set each time there is an overflow.
1.1.1.17 root 1689: * Weird. but 68020 only sets N when dst is negative.. */
1690: printf ("\t\tif (newv > 0xffff) {\n");
1691: printf ("\t\t\tSET_VFLG (1);\n");
1692: #ifdef UNDEF68020
1693: if (cpu_level >= 2)
1694: printf ("\t\t\tif (currprefs.cpu_level == 0 || dst < 0) SET_NFLG (1);\n");
1695: else /* ??? some 68000 revisions may not set NFLG when overflow happens.. */
1696: #endif
1697: printf ("\t\t\tSET_NFLG (1);\n");
1698: printf ("\t\t} else {\n");
1699: printf ("\t\t"); genflags (flag_logical, sz_word, "newv", "", "");
1700: printf ("\t\t\tnewv = (newv & 0xffff) | ((uae_u32)rem << 16);\n");
1701: printf ("\t\t"); genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
1702: printf ("\t\t}\n");
1.1.1.3 root 1703: printf ("\t}\n");
1.1.1.11 root 1704: insn_n_cycles += 136;
1.1.1.5 root 1705: need_endlabel = 1;
1.1.1.3 root 1706: break;
1.1.1.11 root 1707: case i_DIVS:
1.1.1.3 root 1708: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.17 root 1709: genamode (curi->smode, "srcreg", sz_word, "src", 1, 0, 0);
1710: genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0, 0);
1711: fill_prefetch_next_cycles ();
1.1.1.10 root 1712: sync_m68k_pc ();
1.1.1.17 root 1713: printf ("\tCLEAR_CZNV;\n");
1714: printf ("\tif (src == 0) {\n");
1715: if (cpu_level > 0) {
1716: /* 68020 sets V when dividing by zero. Z is also set.
1717: * 68000 clears both
1718: */
1719: printf("\t\tSET_VFLG (1);\n");
1720: printf("\t\tSET_ZFLG (1);\n");
1721: }
1722: printf ("\t\tException (5, oldpc);\n");
1723: printf ("\t\tgoto %s;\n", endlabelstr);
1724: printf ("\t} else {\n");
1725: printf ("\t\tuae_s32 newv = (uae_s32)dst / (uae_s32)(uae_s16)src;\n");
1726: printf ("\t\tuae_u16 rem = (uae_s32)dst %% (uae_s32)(uae_s16)src;\n");
1727: if (using_ce) {
1728: printf ("\t\tint cycles = 156 * %d - lostcycles;\n", CYCLE_UNIT / 2);
1729: }
1730: printf ("\t\tif ((newv & 0xffff8000) != 0 && (newv & 0xffff8000) != 0xffff8000) {\n");
1731: printf ("\t\t\tSET_VFLG (1);\n");
1732: #ifdef UNDEF68020
1733: if (cpu_level > 0)
1734: printf ("\t\t\tif (currprefs.cpu_level == 0) SET_NFLG (1);\n");
1735: else
1736: #endif
1737: printf ("\t\t\tSET_NFLG (1);\n");
1738: printf ("\t\t} else {\n");
1739: printf ("\t\t\tif (((uae_s16)rem < 0) != ((uae_s32)dst < 0)) rem = -rem;\n");
1.1.1.5 root 1740: genflags (flag_logical, sz_word, "newv", "", "");
1.1.1.17 root 1741: printf ("\t\t\tnewv = (newv & 0xffff) | ((uae_u32)rem << 16);\n");
1742: printf ("\t\t"); genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
1743: printf ("\t\t}\n");
1.1.1.3 root 1744: printf ("\t}\n");
1.1.1.11 root 1745: insn_n_cycles += 154;
1.1.1.5 root 1746: need_endlabel = 1;
1.1.1.3 root 1747: break;
1.1.1.11 root 1748: case i_MULU:
1.1.1.17 root 1749: genamode (curi->smode, "srcreg", sz_word, "src", 1, 0, 0);
1750: genamode (curi->dmode, "dstreg", sz_word, "dst", 1, 0, 0);
1.1.1.18 root 1751: fill_prefetch_next_cycles ();
1.1 root 1752: start_brace ();
1.1.1.3 root 1753: printf ("\tuae_u32 newv = (uae_u32)(uae_u16)dst * (uae_u32)(uae_u16)src;\n");
1.1.1.5 root 1754: genflags (flag_logical, sz_long, "newv", "", "");
1.1.1.7 root 1755: genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
1.1.1.17 root 1756: sync_m68k_pc ();
1.1.1.11 root 1757: insn_n_cycles += 66;
1.1 root 1758: break;
1.1.1.11 root 1759: case i_MULS:
1.1.1.17 root 1760: genamode (curi->smode, "srcreg", sz_word, "src", 1, 0, 0);
1761: genamode (curi->dmode, "dstreg", sz_word, "dst", 1, 0, 0);
1.1.1.18 root 1762: fill_prefetch_next_cycles ();
1.1 root 1763: start_brace ();
1.1.1.3 root 1764: printf ("\tuae_u32 newv = (uae_s32)(uae_s16)dst * (uae_s32)(uae_s16)src;\n");
1.1.1.5 root 1765: genflags (flag_logical, sz_long, "newv", "", "");
1.1.1.7 root 1766: genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
1.1.1.11 root 1767: insn_n_cycles += 66;
1.1 root 1768: break;
1.1.1.11 root 1769: case i_CHK:
1.1.1.3 root 1770: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.17 root 1771: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1772: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
1773: sync_m68k_pc ();
1.1.1.18 root 1774: fill_prefetch_next_delay (6);
1.1.1.17 root 1775: printf ("\tif ((uae_s32)dst < 0) {\n");
1776: printf ("\t\tSET_NFLG (1);\n");
1777: printf ("\t\tException (6, oldpc);\n");
1778: printf ("\t\tgoto %s;\n", endlabelstr);
1779: printf ("\t} else if (dst > src) {\n");
1780: printf ("\t\tSET_NFLG (0);\n");
1781: printf ("\t\tException (6, oldpc);\n");
1782: printf ("\t\tgoto %s;\n", endlabelstr);
1783: printf ("\t}\n");
1.1.1.5 root 1784: need_endlabel = 1;
1.1 root 1785: break;
1.1.1.3 root 1786:
1.1.1.11 root 1787: case i_CHK2:
1.1.1.3 root 1788: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.17 root 1789: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0, 0);
1790: genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0, 0);
1.1.1.18 root 1791: fill_prefetch_0 ();
1.1.1.3 root 1792: printf ("\t{uae_s32 upper,lower,reg = regs.regs[(extra >> 12) & 15];\n");
1.1.1.7 root 1793: switch (curi->size) {
1.1.1.11 root 1794: case sz_byte:
1.1.1.3 root 1795: printf ("\tlower=(uae_s32)(uae_s8)get_byte(dsta); upper = (uae_s32)(uae_s8)get_byte(dsta+1);\n");
1796: printf ("\tif ((extra & 0x8000) == 0) reg = (uae_s32)(uae_s8)reg;\n");
1797: break;
1.1.1.11 root 1798: case sz_word:
1.1.1.3 root 1799: printf ("\tlower=(uae_s32)(uae_s16)get_word(dsta); upper = (uae_s32)(uae_s16)get_word(dsta+2);\n");
1800: printf ("\tif ((extra & 0x8000) == 0) reg = (uae_s32)(uae_s16)reg;\n");
1801: break;
1.1.1.11 root 1802: case sz_long:
1.1.1.3 root 1803: printf ("\tlower=get_long(dsta); upper = get_long(dsta+4);\n");
1804: break;
1.1.1.11 root 1805: default:
1.1.1.5 root 1806: abort ();
1.1.1.3 root 1807: }
1.1.1.7 root 1808: printf ("\tSET_ZFLG (upper == reg || lower == reg);\n");
1809: printf ("\tSET_CFLG (lower <= upper ? reg < lower || reg > upper : reg > upper || reg < lower);\n");
1810: printf ("\tif ((extra & 0x800) && GET_CFLG) { Exception(6,oldpc); goto %s; }\n}\n", endlabelstr);
1.1.1.5 root 1811: need_endlabel = 1;
1.1.1.3 root 1812: break;
1813:
1.1.1.11 root 1814: case i_ASR:
1.1.1.17 root 1815: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0, 0);
1816: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0, 0);
1817: fill_prefetch_next_cycles ();
1.1.1.3 root 1818: start_brace ();
1.1.1.7 root 1819: switch (curi->size) {
1.1.1.11 root 1820: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
1821: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1822: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1823: default: abort ();
1.1 root 1824: }
1.1.1.7 root 1825: printf ("\tuae_u32 sign = (%s & val) >> %d;\n", cmask (curi->size), bit_size (curi->size) - 1);
1.1.1.3 root 1826: printf ("\tcnt &= 63;\n");
1.1.1.7 root 1827: printf ("\tCLEAR_CZNV;\n");
1828: printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
1829: printf ("\t\tval = %s & (uae_u32)-sign;\n", bit_mask (curi->size));
1830: printf ("\t\tSET_CFLG (sign);\n");
1.1.1.17 root 1831: duplicate_carry (0);
1.1.1.7 root 1832: if (source_is_imm1_8 (curi))
1833: printf ("\t} else {\n");
1834: else
1835: printf ("\t} else if (cnt > 0) {\n");
1836: printf ("\t\tval >>= cnt - 1;\n");
1837: printf ("\t\tSET_CFLG (val & 1);\n");
1.1.1.17 root 1838: duplicate_carry (0);
1.1.1.7 root 1839: printf ("\t\tval >>= 1;\n");
1840: printf ("\t\tval |= (%s << (%d - cnt)) & (uae_u32)-sign;\n",
1841: bit_mask (curi->size),
1842: bit_size (curi->size));
1843: printf ("\t\tval &= %s;\n", bit_mask (curi->size));
1844: printf ("\t}\n");
1845: genflags (flag_logical_noclobber, curi->size, "val", "", "");
1846: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1847: break;
1.1.1.11 root 1848: case i_ASL:
1.1.1.17 root 1849: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0, 0);
1850: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0, 0);
1851: fill_prefetch_next_cycles ();
1.1 root 1852: start_brace ();
1.1.1.7 root 1853: switch (curi->size) {
1.1.1.11 root 1854: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
1855: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1856: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1857: default: abort ();
1.1 root 1858: }
1.1.1.3 root 1859: printf ("\tcnt &= 63;\n");
1.1.1.7 root 1860: printf ("\tCLEAR_CZNV;\n");
1861: printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
1862: printf ("\t\tSET_VFLG (val != 0);\n");
1863: printf ("\t\tSET_CFLG (cnt == %d ? val & 1 : 0);\n",
1864: bit_size (curi->size));
1.1.1.17 root 1865: duplicate_carry (0);
1.1.1.3 root 1866: printf ("\t\tval = 0;\n");
1.1.1.7 root 1867: if (source_is_imm1_8 (curi))
1868: printf ("\t} else {\n");
1869: else
1870: printf ("\t} else if (cnt > 0) {\n");
1.1.1.3 root 1871: printf ("\t\tuae_u32 mask = (%s << (%d - cnt)) & %s;\n",
1.1.1.7 root 1872: bit_mask (curi->size),
1873: bit_size (curi->size) - 1,
1874: bit_mask (curi->size));
1875: printf ("\t\tSET_VFLG ((val & mask) != mask && (val & mask) != 0);\n");
1876: printf ("\t\tval <<= cnt - 1;\n");
1877: printf ("\t\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1);
1.1.1.17 root 1878: duplicate_carry (0);
1.1.1.7 root 1879: printf ("\t\tval <<= 1;\n");
1880: printf ("\t\tval &= %s;\n", bit_mask (curi->size));
1881: printf ("\t}\n");
1882: genflags (flag_logical_noclobber, curi->size, "val", "", "");
1883: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1884: break;
1.1.1.11 root 1885: case i_LSR:
1.1.1.17 root 1886: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0, 0);
1887: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0, 0);
1888: fill_prefetch_next_cycles ();
1.1 root 1889: start_brace ();
1.1.1.7 root 1890: switch (curi->size) {
1.1.1.11 root 1891: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
1892: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1893: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1894: default: abort ();
1.1 root 1895: }
1.1.1.3 root 1896: printf ("\tcnt &= 63;\n");
1.1.1.7 root 1897: printf ("\tCLEAR_CZNV;\n");
1898: printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
1899: printf ("\t\tSET_CFLG ((cnt == %d) & (val >> %d));\n",
1900: bit_size (curi->size), bit_size (curi->size) - 1);
1.1.1.17 root 1901: duplicate_carry (0);
1.1.1.3 root 1902: printf ("\t\tval = 0;\n");
1.1.1.7 root 1903: if (source_is_imm1_8 (curi))
1904: printf ("\t} else {\n");
1905: else
1906: printf ("\t} else if (cnt > 0) {\n");
1907: printf ("\t\tval >>= cnt - 1;\n");
1908: printf ("\t\tSET_CFLG (val & 1);\n");
1.1.1.17 root 1909: duplicate_carry (0);
1.1.1.7 root 1910: printf ("\t\tval >>= 1;\n");
1911: printf ("\t}\n");
1912: genflags (flag_logical_noclobber, curi->size, "val", "", "");
1913: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1914: break;
1.1.1.11 root 1915: case i_LSL:
1.1.1.17 root 1916: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0, 0);
1917: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0, 0);
1918: fill_prefetch_next_cycles ();
1.1 root 1919: start_brace ();
1.1.1.7 root 1920: switch (curi->size) {
1.1.1.11 root 1921: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
1922: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1923: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1924: default: abort ();
1.1 root 1925: }
1.1.1.3 root 1926: printf ("\tcnt &= 63;\n");
1.1.1.7 root 1927: printf ("\tCLEAR_CZNV;\n");
1928: printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
1929: printf ("\t\tSET_CFLG (cnt == %d ? val & 1 : 0);\n",
1930: bit_size (curi->size));
1.1.1.17 root 1931: duplicate_carry (0);
1.1.1.3 root 1932: printf ("\t\tval = 0;\n");
1.1.1.7 root 1933: if (source_is_imm1_8 (curi))
1934: printf ("\t} else {\n");
1935: else
1936: printf ("\t} else if (cnt > 0) {\n");
1937: printf ("\t\tval <<= (cnt - 1);\n");
1938: printf ("\t\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1);
1.1.1.17 root 1939: duplicate_carry (0);
1.1.1.7 root 1940: printf ("\t\tval <<= 1;\n");
1941: printf ("\tval &= %s;\n", bit_mask (curi->size));
1942: printf ("\t}\n");
1943: genflags (flag_logical_noclobber, curi->size, "val", "", "");
1944: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1945: break;
1.1.1.11 root 1946: case i_ROL:
1.1.1.17 root 1947: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0, 0);
1948: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0, 0);
1949: fill_prefetch_next_cycles ();
1.1 root 1950: start_brace ();
1.1.1.7 root 1951: switch (curi->size) {
1.1.1.11 root 1952: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
1953: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1954: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1955: default: abort ();
1.1 root 1956: }
1.1.1.3 root 1957: printf ("\tcnt &= 63;\n");
1.1.1.7 root 1958: printf ("\tCLEAR_CZNV;\n");
1959: if (source_is_imm1_8 (curi))
1960: printf ("{");
1961: else
1962: printf ("\tif (cnt > 0) {\n");
1963: printf ("\tuae_u32 loval;\n");
1964: printf ("\tcnt &= %d;\n", bit_size (curi->size) - 1);
1965: printf ("\tloval = val >> (%d - cnt);\n", bit_size (curi->size));
1966: printf ("\tval <<= cnt;\n");
1967: printf ("\tval |= loval;\n");
1968: printf ("\tval &= %s;\n", bit_mask (curi->size));
1969: printf ("\tSET_CFLG (val & 1);\n");
1970: printf ("}\n");
1971: genflags (flag_logical_noclobber, curi->size, "val", "", "");
1972: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 1973: break;
1.1.1.11 root 1974: case i_ROR:
1.1.1.17 root 1975: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0, 0);
1976: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0, 0);
1977: fill_prefetch_next_cycles ();
1.1 root 1978: start_brace ();
1.1.1.7 root 1979: switch (curi->size) {
1.1.1.11 root 1980: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
1981: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
1982: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
1983: default: abort ();
1.1 root 1984: }
1.1.1.3 root 1985: printf ("\tcnt &= 63;\n");
1.1.1.7 root 1986: printf ("\tCLEAR_CZNV;\n");
1987: if (source_is_imm1_8 (curi))
1988: printf ("{");
1989: else
1990: printf ("\tif (cnt > 0) {");
1991: printf ("\tuae_u32 hival;\n");
1992: printf ("\tcnt &= %d;\n", bit_size (curi->size) - 1);
1993: printf ("\thival = val << (%d - cnt);\n", bit_size (curi->size));
1994: printf ("\tval >>= cnt;\n");
1995: printf ("\tval |= hival;\n");
1996: printf ("\tval &= %s;\n", bit_mask (curi->size));
1997: printf ("\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1);
1.1.1.3 root 1998: printf ("\t}\n");
1.1.1.7 root 1999: genflags (flag_logical_noclobber, curi->size, "val", "", "");
2000: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 2001: break;
1.1.1.11 root 2002: case i_ROXL:
1.1.1.17 root 2003: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0, 0);
2004: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0, 0);
2005: fill_prefetch_next_cycles ();
1.1 root 2006: start_brace ();
1.1.1.7 root 2007: switch (curi->size) {
1.1.1.11 root 2008: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
2009: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
2010: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
2011: default: abort ();
1.1 root 2012: }
1.1.1.3 root 2013: printf ("\tcnt &= 63;\n");
1.1.1.7 root 2014: printf ("\tCLEAR_CZNV;\n");
2015: if (source_is_imm1_8 (curi))
2016: printf ("{");
1.1.1.12 root 2017: else {
2018: force_range_for_rox ("cnt", curi->size);
1.1.1.7 root 2019: printf ("\tif (cnt > 0) {\n");
1.1.1.12 root 2020: }
1.1.1.7 root 2021: printf ("\tcnt--;\n");
2022: printf ("\t{\n\tuae_u32 carry;\n");
2023: printf ("\tuae_u32 loval = val >> (%d - cnt);\n", bit_size (curi->size) - 1);
2024: printf ("\tcarry = loval & 1;\n");
2025: printf ("\tval = (((val << 1) | GET_XFLG) << cnt) | (loval >> 1);\n");
2026: printf ("\tSET_XFLG (carry);\n");
2027: printf ("\tval &= %s;\n", bit_mask (curi->size));
2028: printf ("\t} }\n");
2029: printf ("\tSET_CFLG (GET_XFLG);\n");
2030: genflags (flag_logical_noclobber, curi->size, "val", "", "");
2031: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 2032: break;
1.1.1.11 root 2033: case i_ROXR:
1.1.1.17 root 2034: genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0, 0);
2035: genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0, 0);
2036: fill_prefetch_next_cycles ();
1.1 root 2037: start_brace ();
1.1.1.7 root 2038: switch (curi->size) {
1.1.1.11 root 2039: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
2040: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
2041: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
2042: default: abort ();
1.1 root 2043: }
1.1.1.3 root 2044: printf ("\tcnt &= 63;\n");
1.1.1.7 root 2045: printf ("\tCLEAR_CZNV;\n");
2046: if (source_is_imm1_8 (curi))
2047: printf ("{");
1.1.1.12 root 2048: else {
2049: force_range_for_rox ("cnt", curi->size);
1.1.1.7 root 2050: printf ("\tif (cnt > 0) {\n");
1.1.1.12 root 2051: }
1.1.1.7 root 2052: printf ("\tcnt--;\n");
2053: printf ("\t{\n\tuae_u32 carry;\n");
2054: printf ("\tuae_u32 hival = (val << 1) | GET_XFLG;\n");
2055: printf ("\thival <<= (%d - cnt);\n", bit_size (curi->size) - 1);
2056: printf ("\tval >>= cnt;\n");
2057: printf ("\tcarry = val & 1;\n");
2058: printf ("\tval >>= 1;\n");
2059: printf ("\tval |= hival;\n");
2060: printf ("\tSET_XFLG (carry);\n");
2061: printf ("\tval &= %s;\n", bit_mask (curi->size));
2062: printf ("\t} }\n");
2063: printf ("\tSET_CFLG (GET_XFLG);\n");
2064: genflags (flag_logical_noclobber, curi->size, "val", "", "");
2065: genastore ("val", curi->dmode, "dstreg", curi->size, "data");
1.1 root 2066: break;
1.1.1.11 root 2067: case i_ASRW:
1.1.1.17 root 2068: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0, 0);
2069: fill_prefetch_next ();
1.1 root 2070: start_brace ();
1.1.1.7 root 2071: switch (curi->size) {
1.1.1.11 root 2072: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
2073: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
2074: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
2075: default: abort ();
1.1 root 2076: }
1.1.1.7 root 2077: printf ("\tuae_u32 sign = %s & val;\n", cmask (curi->size));
2078: printf ("\tuae_u32 cflg = val & 1;\n");
2079: printf ("\tval = (val >> 1) | sign;\n");
2080: genflags (flag_logical, curi->size, "val", "", "");
2081: printf ("\tSET_CFLG (cflg);\n");
1.1.1.17 root 2082: duplicate_carry (0);
1.1.1.7 root 2083: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 2084: break;
1.1.1.11 root 2085: case i_ASLW:
1.1.1.17 root 2086: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0, 0);
2087: fill_prefetch_next ();
1.1 root 2088: start_brace ();
1.1.1.7 root 2089: switch (curi->size) {
1.1.1.11 root 2090: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
2091: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
2092: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
2093: default: abort ();
1.1 root 2094: }
1.1.1.7 root 2095: printf ("\tuae_u32 sign = %s & val;\n", cmask (curi->size));
2096: printf ("\tuae_u32 sign2;\n");
2097: printf ("\tval <<= 1;\n");
2098: genflags (flag_logical, curi->size, "val", "", "");
2099: printf ("\tsign2 = %s & val;\n", cmask (curi->size));
2100: printf ("\tSET_CFLG (sign != 0);\n");
1.1.1.17 root 2101: duplicate_carry (0);
1.1.1.7 root 2102:
2103: printf ("\tSET_VFLG (GET_VFLG | (sign2 != sign));\n");
2104: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 2105: break;
1.1.1.11 root 2106: case i_LSRW:
1.1.1.17 root 2107: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0, 0);
2108: fill_prefetch_next ();
1.1 root 2109: start_brace ();
1.1.1.7 root 2110: switch (curi->size) {
1.1.1.11 root 2111: case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
2112: case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
2113: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
2114: default: abort ();
1.1 root 2115: }
1.1.1.7 root 2116: printf ("\tuae_u32 carry = val & 1;\n");
1.1.1.3 root 2117: printf ("\tval >>= 1;\n");
1.1.1.7 root 2118: genflags (flag_logical, curi->size, "val", "", "");
2119: printf ("SET_CFLG (carry);\n");
1.1.1.17 root 2120: duplicate_carry (0);
1.1.1.7 root 2121: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 2122: break;
1.1.1.11 root 2123: case i_LSLW:
1.1.1.17 root 2124: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0, 0);
2125: fill_prefetch_next ();
1.1 root 2126: start_brace ();
1.1.1.7 root 2127: switch (curi->size) {
1.1.1.11 root 2128: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2129: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2130: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
2131: default: abort ();
1.1 root 2132: }
1.1.1.7 root 2133: printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size));
1.1.1.3 root 2134: printf ("\tval <<= 1;\n");
1.1.1.7 root 2135: genflags (flag_logical, curi->size, "val", "", "");
2136: printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1);
1.1.1.17 root 2137: duplicate_carry (0);
1.1.1.7 root 2138: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 2139: break;
1.1.1.11 root 2140: case i_ROLW:
1.1.1.17 root 2141: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0, 0);
2142: fill_prefetch_next ();
1.1 root 2143: start_brace ();
1.1.1.7 root 2144: switch (curi->size) {
1.1.1.11 root 2145: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2146: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2147: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
2148: default: abort ();
1.1 root 2149: }
1.1.1.7 root 2150: printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size));
1.1.1.3 root 2151: printf ("\tval <<= 1;\n");
1.1.1.7 root 2152: printf ("\tif (carry) val |= 1;\n");
2153: genflags (flag_logical, curi->size, "val", "", "");
2154: printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1);
2155: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 2156: break;
1.1.1.11 root 2157: case i_RORW:
1.1.1.17 root 2158: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0, 0);
2159: fill_prefetch_next ();
1.1 root 2160: start_brace ();
1.1.1.7 root 2161: switch (curi->size) {
1.1.1.11 root 2162: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2163: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2164: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
2165: default: abort ();
1.1 root 2166: }
1.1.1.7 root 2167: printf ("\tuae_u32 carry = val & 1;\n");
1.1.1.3 root 2168: printf ("\tval >>= 1;\n");
1.1.1.7 root 2169: printf ("\tif (carry) val |= %s;\n", cmask (curi->size));
2170: genflags (flag_logical, curi->size, "val", "", "");
2171: printf ("SET_CFLG (carry);\n");
2172: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 2173: break;
1.1.1.11 root 2174: case i_ROXLW:
1.1.1.17 root 2175: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0, 0);
2176: fill_prefetch_next ();
1.1 root 2177: start_brace ();
1.1.1.7 root 2178: switch (curi->size) {
1.1.1.11 root 2179: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2180: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2181: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
2182: default: abort ();
1.1 root 2183: }
1.1.1.7 root 2184: printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size));
1.1.1.3 root 2185: printf ("\tval <<= 1;\n");
1.1.1.7 root 2186: printf ("\tif (GET_XFLG) val |= 1;\n");
2187: genflags (flag_logical, curi->size, "val", "", "");
2188: printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1);
1.1.1.17 root 2189: duplicate_carry (0);
1.1.1.7 root 2190: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 2191: break;
1.1.1.11 root 2192: case i_ROXRW:
1.1.1.17 root 2193: genamode (curi->smode, "srcreg", curi->size, "data", 1, 0, 0);
2194: fill_prefetch_next ();
1.1 root 2195: start_brace ();
1.1.1.7 root 2196: switch (curi->size) {
1.1.1.11 root 2197: case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
2198: case sz_word: printf ("\tuae_u16 val = data;\n"); break;
2199: case sz_long: printf ("\tuae_u32 val = data;\n"); break;
2200: default: abort ();
1.1 root 2201: }
1.1.1.7 root 2202: printf ("\tuae_u32 carry = val & 1;\n");
1.1.1.3 root 2203: printf ("\tval >>= 1;\n");
1.1.1.7 root 2204: printf ("\tif (GET_XFLG) val |= %s;\n", cmask (curi->size));
2205: genflags (flag_logical, curi->size, "val", "", "");
2206: printf ("SET_CFLG (carry);\n");
1.1.1.17 root 2207: duplicate_carry (0);
1.1.1.7 root 2208: genastore ("val", curi->smode, "srcreg", curi->size, "data");
1.1 root 2209: break;
1.1.1.11 root 2210: case i_MOVEC2:
1.1.1.17 root 2211: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
2212: fill_prefetch_next ();
1.1.1.5 root 2213: start_brace ();
1.1.1.3 root 2214: printf ("\tint regno = (src >> 12) & 15;\n");
2215: printf ("\tuae_u32 *regp = regs.regs + regno;\n");
1.1.1.9 root 2216: printf ("\tif (! m68k_movec2(src & 0xFFF, regp)) goto %s;\n", endlabelstr);
1.1 root 2217: break;
1.1.1.11 root 2218: case i_MOVE2C:
1.1.1.17 root 2219: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
2220: fill_prefetch_next ();
1.1.1.5 root 2221: start_brace ();
1.1.1.3 root 2222: printf ("\tint regno = (src >> 12) & 15;\n");
2223: printf ("\tuae_u32 *regp = regs.regs + regno;\n");
1.1.1.9 root 2224: printf ("\tif (! m68k_move2c(src & 0xFFF, regp)) goto %s;\n", endlabelstr);
1.1 root 2225: break;
1.1.1.11 root 2226: case i_CAS:
2227: {
2228: int old_brace_level;
1.1.1.17 root 2229: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
2230: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
2231: fill_prefetch_0 ();
1.1.1.11 root 2232: start_brace ();
2233: printf ("\tint ru = (src >> 6) & 7;\n");
2234: printf ("\tint rc = src & 7;\n");
2235: genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, rc)", "dst");
2236: printf ("\tif (GET_ZFLG)");
2237: old_brace_level = n_braces;
2238: start_brace ();
2239: genastore ("(m68k_dreg(regs, ru))", curi->dmode, "dstreg", curi->size, "dst");
2240: pop_braces (old_brace_level);
2241: printf ("else");
2242: start_brace ();
2243: printf ("m68k_dreg(regs, rc) = dst;\n");
2244: pop_braces (old_brace_level);
2245: }
2246: break;
2247: case i_CAS2:
1.1.1.17 root 2248: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0, 0);
1.1.1.8 root 2249: printf ("\tuae_u32 rn1 = regs.regs[(extra >> 28) & 15];\n");
2250: printf ("\tuae_u32 rn2 = regs.regs[(extra >> 12) & 15];\n");
1.1.1.7 root 2251: if (curi->size == sz_word) {
1.1.1.5 root 2252: int old_brace_level = n_braces;
2253: printf ("\tuae_u16 dst1 = get_word(rn1), dst2 = get_word(rn2);\n");
1.1.1.7 root 2254: genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1");
2255: printf ("\tif (GET_ZFLG) {\n");
2256: genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, extra & 7)", "dst2");
2257: printf ("\tif (GET_ZFLG) {\n");
1.1.1.5 root 2258: printf ("\tput_word(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n");
2259: printf ("\tput_word(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n");
2260: printf ("\t}}\n");
2261: pop_braces (old_brace_level);
1.1.1.7 root 2262: printf ("\tif (! GET_ZFLG) {\n");
1.1.1.5 root 2263: printf ("\tm68k_dreg(regs, (extra >> 22) & 7) = (m68k_dreg(regs, (extra >> 22) & 7) & ~0xffff) | (dst1 & 0xffff);\n");
2264: printf ("\tm68k_dreg(regs, (extra >> 6) & 7) = (m68k_dreg(regs, (extra >> 6) & 7) & ~0xffff) | (dst2 & 0xffff);\n");
2265: printf ("\t}\n");
1.1 root 2266: } else {
1.1.1.5 root 2267: int old_brace_level = n_braces;
2268: printf ("\tuae_u32 dst1 = get_long(rn1), dst2 = get_long(rn2);\n");
1.1.1.7 root 2269: genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1");
2270: printf ("\tif (GET_ZFLG) {\n");
2271: genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, extra & 7)", "dst2");
2272: printf ("\tif (GET_ZFLG) {\n");
1.1.1.5 root 2273: printf ("\tput_long(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n");
2274: printf ("\tput_long(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n");
2275: printf ("\t}}\n");
2276: pop_braces (old_brace_level);
1.1.1.7 root 2277: printf ("\tif (! GET_ZFLG) {\n");
1.1.1.5 root 2278: printf ("\tm68k_dreg(regs, (extra >> 22) & 7) = dst1;\n");
2279: printf ("\tm68k_dreg(regs, (extra >> 6) & 7) = dst2;\n");
2280: printf ("\t}\n");
1.1 root 2281: }
2282: break;
1.1.1.11 root 2283: case i_MOVES: /* ignore DFC and SFC because we have no MMU */
2284: {
2285: int old_brace_level;
1.1.1.17 root 2286: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0, 0);
1.1.1.11 root 2287: printf ("\tif (extra & 0x800)\n");
2288: old_brace_level = n_braces;
2289: start_brace ();
2290: printf ("\tuae_u32 src = regs.regs[(extra >> 12) & 15];\n");
1.1.1.17 root 2291: genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0, 0);
1.1.1.11 root 2292: genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
2293: pop_braces (old_brace_level);
2294: printf ("else");
2295: start_brace ();
1.1.1.17 root 2296: genamode (curi->dmode, "dstreg", curi->size, "src", 1, 0, 0);
1.1.1.11 root 2297: printf ("\tif (extra & 0x8000) {\n");
2298: switch (curi->size) {
2299: case sz_byte: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = (uae_s32)(uae_s8)src;\n"); break;
2300: case sz_word: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = (uae_s32)(uae_s16)src;\n"); break;
2301: case sz_long: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = src;\n"); break;
2302: default: abort ();
1.1 root 2303: }
1.1.1.11 root 2304: printf ("\t} else {\n");
2305: genastore ("src", Dreg, "(extra >> 12) & 7", curi->size, "");
2306: printf ("\t}\n");
2307: pop_braces (old_brace_level);
2308: }
2309: break;
2310: case i_BKPT: /* only needed for hardware emulators */
1.1.1.5 root 2311: sync_m68k_pc ();
1.1.1.3 root 2312: printf ("\top_illg(opcode);\n");
1.1 root 2313: break;
1.1.1.11 root 2314: case i_CALLM: /* not present in 68030 */
1.1.1.5 root 2315: sync_m68k_pc ();
1.1.1.3 root 2316: printf ("\top_illg(opcode);\n");
1.1 root 2317: break;
1.1.1.11 root 2318: case i_RTM: /* not present in 68030 */
1.1.1.5 root 2319: sync_m68k_pc ();
1.1.1.3 root 2320: printf ("\top_illg(opcode);\n");
1.1 root 2321: break;
1.1.1.11 root 2322: case i_TRAPcc:
1.1.1.7 root 2323: if (curi->smode != am_unknown && curi->smode != am_illg)
1.1.1.17 root 2324: genamode (curi->smode, "srcreg", curi->size, "dummy", 1, 0, 0);
2325: fill_prefetch_0 ();
1.1.1.7 root 2326: printf ("\tif (cctrue(%d)) { Exception(7,m68k_getpc()); goto %s; }\n", curi->cc, endlabelstr);
1.1.1.5 root 2327: need_endlabel = 1;
1.1 root 2328: break;
1.1.1.11 root 2329: case i_DIVL:
1.1.1.3 root 2330: sync_m68k_pc ();
2331: start_brace ();
2332: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.17 root 2333: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0, 0);
2334: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
1.1.1.5 root 2335: sync_m68k_pc ();
1.1.1.3 root 2336: printf ("\tm68k_divl(opcode, dst, extra, oldpc);\n");
1.1 root 2337: break;
1.1.1.11 root 2338: case i_MULL:
1.1.1.17 root 2339: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0, 0);
2340: genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0, 0);
1.1.1.5 root 2341: sync_m68k_pc ();
1.1.1.3 root 2342: printf ("\tm68k_mull(opcode, dst, extra);\n");
1.1 root 2343: break;
1.1.1.11 root 2344: case i_BFTST:
2345: case i_BFEXTU:
2346: case i_BFCHG:
2347: case i_BFEXTS:
2348: case i_BFCLR:
2349: case i_BFFFO:
2350: case i_BFSET:
2351: case i_BFINS:
1.1.1.17 root 2352: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0, 0);
2353: genamode (curi->dmode, "dstreg", sz_long, "dst", 2, 0, 0);
1.1.1.5 root 2354: start_brace ();
1.1.1.3 root 2355: printf ("\tuae_s32 offset = extra & 0x800 ? m68k_dreg(regs, (extra >> 6) & 7) : (extra >> 6) & 0x1f;\n");
2356: printf ("\tint width = (((extra & 0x20 ? m68k_dreg(regs, extra & 7) : extra) -1) & 0x1f) +1;\n");
1.1.1.7 root 2357: if (curi->dmode == Dreg) {
1.1.1.3 root 2358: printf ("\tuae_u32 tmp = m68k_dreg(regs, dstreg) << (offset & 0x1f);\n");
2359: } else {
2360: printf ("\tuae_u32 tmp,bf0,bf1;\n");
2361: printf ("\tdsta += (offset >> 3) | (offset & 0x80000000 ? ~0x1fffffff : 0);\n");
2362: printf ("\tbf0 = get_long(dsta);bf1 = get_byte(dsta+4) & 0xff;\n");
2363: printf ("\ttmp = (bf0 << (offset & 7)) | (bf1 >> (8 - (offset & 7)));\n");
2364: }
2365: printf ("\ttmp >>= (32 - width);\n");
1.1.1.7 root 2366: printf ("\tSET_NFLG (tmp & (1 << (width-1)) ? 1 : 0);\n");
2367: printf ("\tSET_ZFLG (tmp == 0); SET_VFLG (0); SET_CFLG (0);\n");
2368: switch (curi->mnemo) {
1.1.1.11 root 2369: case i_BFTST:
1.1.1.3 root 2370: break;
1.1.1.11 root 2371: case i_BFEXTU:
1.1.1.3 root 2372: printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n");
2373: break;
1.1.1.11 root 2374: case i_BFCHG:
1.1.1.3 root 2375: printf ("\ttmp = ~tmp;\n");
2376: break;
1.1.1.11 root 2377: case i_BFEXTS:
1.1.1.7 root 2378: printf ("\tif (GET_NFLG) tmp |= width == 32 ? 0 : (-1 << width);\n");
1.1.1.3 root 2379: printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n");
2380: break;
1.1.1.11 root 2381: case i_BFCLR:
1.1.1.3 root 2382: printf ("\ttmp = 0;\n");
2383: break;
1.1.1.11 root 2384: case i_BFFFO:
1.1.1.3 root 2385: printf ("\t{ uae_u32 mask = 1 << (width-1);\n");
2386: printf ("\twhile (mask) { if (tmp & mask) break; mask >>= 1; offset++; }}\n");
2387: printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = offset;\n");
2388: break;
1.1.1.11 root 2389: case i_BFSET:
1.1.1.3 root 2390: printf ("\ttmp = 0xffffffff;\n");
2391: break;
1.1.1.11 root 2392: case i_BFINS:
1.1.1.3 root 2393: printf ("\ttmp = m68k_dreg(regs, (extra >> 12) & 7);\n");
1.1.1.15 root 2394: printf ("\tSET_NFLG (tmp & (1 << (width - 1)) ? 1 : 0);\n");
2395: printf ("\tSET_ZFLG (tmp == 0);\n");
1.1.1.3 root 2396: break;
1.1.1.11 root 2397: default:
1.1.1.3 root 2398: break;
1.1 root 2399: }
1.1.1.7 root 2400: if (curi->mnemo == i_BFCHG
2401: || curi->mnemo == i_BFCLR
2402: || curi->mnemo == i_BFSET
2403: || curi->mnemo == i_BFINS)
1.1.1.11 root 2404: {
2405: printf ("\ttmp <<= (32 - width);\n");
2406: if (curi->dmode == Dreg) {
2407: printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & ((offset & 0x1f) == 0 ? 0 :\n");
2408: printf ("\t\t(0xffffffff << (32 - (offset & 0x1f))))) |\n");
2409: printf ("\t\t(tmp >> (offset & 0x1f)) |\n");
2410: printf ("\t\t(((offset & 0x1f) + width) >= 32 ? 0 :\n");
2411: printf (" (m68k_dreg(regs, dstreg) & ((uae_u32)0xffffffff >> ((offset & 0x1f) + width))));\n");
2412: } else {
2413: printf ("\tbf0 = (bf0 & (0xff000000 << (8 - (offset & 7)))) |\n");
2414: printf ("\t\t(tmp >> (offset & 7)) |\n");
2415: printf ("\t\t(((offset & 7) + width) >= 32 ? 0 :\n");
2416: printf ("\t\t (bf0 & ((uae_u32)0xffffffff >> ((offset & 7) + width))));\n");
2417: printf ("\tput_long(dsta,bf0 );\n");
2418: printf ("\tif (((offset & 7) + width) > 32) {\n");
2419: printf ("\t\tbf1 = (bf1 & (0xff >> (width - 32 + (offset & 7)))) |\n");
2420: printf ("\t\t\t(tmp << (8 - (offset & 7)));\n");
2421: printf ("\t\tput_byte(dsta+4,bf1);\n");
2422: printf ("\t}\n");
2423: }
1.1.1.5 root 2424: }
1.1 root 2425: break;
1.1.1.11 root 2426: case i_PACK:
1.1.1.7 root 2427: if (curi->smode == Dreg) {
1.1.1.17 root 2428: printf ("\tuae_u16 val = m68k_dreg(regs, srcreg) + %s;\n", gen_nextiword (0));
1.1.1.3 root 2429: printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffffff00) | ((val >> 4) & 0xf0) | (val & 0xf);\n");
2430: } else {
2431: printf ("\tuae_u16 val;\n");
2432: printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
2433: printf ("\tval = (uae_u16)get_byte(m68k_areg(regs, srcreg));\n");
2434: printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
1.1.1.17 root 2435: printf ("\tval = (val | ((uae_u16)get_byte(m68k_areg(regs, srcreg)) << 8)) + %s;\n", gen_nextiword (0));
1.1.1.3 root 2436: printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
2437: printf ("\tput_byte(m68k_areg(regs, dstreg),((val >> 4) & 0xf0) | (val & 0xf));\n");
1.1 root 2438: }
2439: break;
1.1.1.11 root 2440: case i_UNPK:
1.1.1.7 root 2441: if (curi->smode == Dreg) {
1.1.1.3 root 2442: printf ("\tuae_u16 val = m68k_dreg(regs, srcreg);\n");
1.1.1.17 root 2443: printf ("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + %s;\n", gen_nextiword (0));
1.1.1.3 root 2444: printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffff0000) | (val & 0xffff);\n");
2445: } else {
2446: printf ("\tuae_u16 val;\n");
2447: printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
2448: printf ("\tval = (uae_u16)get_byte(m68k_areg(regs, srcreg));\n");
1.1.1.17 root 2449: printf ("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + %s;\n", gen_nextiword (0));
1.1.1.3 root 2450: printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
2451: printf ("\tput_byte(m68k_areg(regs, dstreg),val);\n");
2452: printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
2453: printf ("\tput_byte(m68k_areg(regs, dstreg),val >> 8);\n");
1.1 root 2454: }
2455: break;
1.1.1.11 root 2456: case i_TAS:
1.1.1.17 root 2457: genamode (curi->smode, "srcreg", curi->size, "src", 1, 0, 0);
1.1.1.7 root 2458: genflags (flag_logical, curi->size, "src", "", "");
1.1.1.17 root 2459: if (!isreg (curi->smode))
2460: tmpc += 2;
1.1.1.18 root 2461: fill_prefetch_next_delay (tmpc);
1.1.1.3 root 2462: printf ("\tsrc |= 0x80;\n");
1.1.1.7 root 2463: genastore ("src", curi->smode, "srcreg", curi->size, "src");
1.1 root 2464: break;
1.1.1.11 root 2465: case i_FPP:
1.1.1.17 root 2466: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0, 0);
1.1.1.5 root 2467: sync_m68k_pc ();
1.1.1.3 root 2468: printf ("\tfpp_opp(opcode,extra);\n");
1.1 root 2469: break;
1.1.1.11 root 2470: case i_FDBcc:
1.1.1.17 root 2471: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0, 0);
1.1.1.5 root 2472: sync_m68k_pc ();
1.1.1.3 root 2473: printf ("\tfdbcc_opp(opcode,extra);\n");
1.1 root 2474: break;
1.1.1.11 root 2475: case i_FScc:
1.1.1.17 root 2476: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0, 0);
1.1.1.5 root 2477: sync_m68k_pc ();
1.1.1.3 root 2478: printf ("\tfscc_opp(opcode,extra);\n");
1.1 root 2479: break;
1.1.1.11 root 2480: case i_FTRAPcc:
1.1.1.5 root 2481: sync_m68k_pc ();
2482: start_brace ();
1.1.1.3 root 2483: printf ("\tuaecptr oldpc = m68k_getpc();\n");
1.1.1.7 root 2484: if (curi->smode != am_unknown && curi->smode != am_illg)
1.1.1.17 root 2485: genamode (curi->smode, "srcreg", curi->size, "dummy", 1, 0, 0);
1.1.1.5 root 2486: sync_m68k_pc ();
1.1.1.3 root 2487: printf ("\tftrapcc_opp(opcode,oldpc);\n");
1.1 root 2488: break;
1.1.1.11 root 2489: case i_FBcc:
1.1.1.5 root 2490: sync_m68k_pc ();
2491: start_brace ();
1.1.1.3 root 2492: printf ("\tuaecptr pc = m68k_getpc();\n");
1.1.1.17 root 2493: genamode (curi->dmode, "srcreg", curi->size, "extra", 1, 0, 0);
1.1.1.5 root 2494: sync_m68k_pc ();
1.1.1.3 root 2495: printf ("\tfbcc_opp(opcode,pc,extra);\n");
1.1 root 2496: break;
1.1.1.11 root 2497: case i_FSAVE:
1.1.1.5 root 2498: sync_m68k_pc ();
1.1.1.3 root 2499: printf ("\tfsave_opp(opcode);\n");
1.1 root 2500: break;
1.1.1.11 root 2501: case i_FRESTORE:
1.1.1.5 root 2502: sync_m68k_pc ();
1.1.1.3 root 2503: printf ("\tfrestore_opp(opcode);\n");
1.1 root 2504: break;
1.1.1.12 root 2505:
2506: case i_CINVL:
2507: case i_CINVP:
2508: case i_CINVA:
2509: case i_CPUSHL:
2510: case i_CPUSHP:
2511: case i_CPUSHA:
2512: break;
2513: case i_MOVE16:
1.1.1.14 root 2514: if ((opcode & 0xfff8) == 0xf620) {
2515: /* MOVE16 (Ax)+,(Ay)+ */
2516: printf ("\tuaecptr mems = m68k_areg(regs, srcreg) & ~15, memd;\n");
1.1.1.17 root 2517: printf ("\tdstreg = (%s >> 12) & 7;\n", gen_nextiword (0));
1.1.1.14 root 2518: printf ("\tmemd = m68k_areg(regs, dstreg) & ~15;\n");
2519: printf ("\tput_long(memd, get_long(mems));\n");
2520: printf ("\tput_long(memd+4, get_long(mems+4));\n");
2521: printf ("\tput_long(memd+8, get_long(mems+8));\n");
2522: printf ("\tput_long(memd+12, get_long(mems+12));\n");
2523: printf ("\tif (srcreg != dstreg)\n");
2524: printf ("\tm68k_areg(regs, srcreg) += 16;\n");
2525: printf ("\tm68k_areg(regs, dstreg) += 16;\n");
2526: } else {
2527: /* Other variants */
1.1.1.17 root 2528: genamode (curi->smode, "srcreg", curi->size, "mems", 0, 2, 0);
2529: genamode (curi->dmode, "dstreg", curi->size, "memd", 0, 2, 0);
1.1.1.14 root 2530: printf ("\tmemsa &= ~15;\n");
2531: printf ("\tmemda &= ~15;\n");
2532: printf ("\tput_long(memda, get_long(memsa));\n");
2533: printf ("\tput_long(memda+4, get_long(memsa+4));\n");
2534: printf ("\tput_long(memda+8, get_long(memsa+8));\n");
2535: printf ("\tput_long(memda+12, get_long(memsa+12));\n");
2536: if ((opcode & 0xfff8) == 0xf600)
1.1.1.18 root 2537: printf ("\tm68k_areg(regs, srcreg) += 16;\n");
1.1.1.14 root 2538: else if ((opcode & 0xfff8) == 0xf608)
2539: printf ("\tm68k_areg(regs, dstreg) += 16;\n");
2540: }
2541: break;
1.1.1.12 root 2542:
1.1.1.11 root 2543: case i_MMUOP:
1.1.1.17 root 2544: genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0, 0);
1.1.1.5 root 2545: sync_m68k_pc ();
1.1.1.3 root 2546: printf ("\tmmu_op(opcode,extra);\n");
1.1 root 2547: break;
1.1.1.11 root 2548: default:
1.1.1.5 root 2549: abort ();
1.1 root 2550: break;
1.1.1.5 root 2551: }
1.1 root 2552: finish_braces ();
1.1.1.17 root 2553: fill_prefetch_finish ();
1.1.1.3 root 2554: sync_m68k_pc ();
1.1.1.17 root 2555: did_prefetch = 0;
1.1 root 2556: }
2557:
1.1.1.5 root 2558: static void generate_includes (FILE * f)
1.1.1.3 root 2559: {
2560: fprintf (f, "#include \"sysconfig.h\"\n");
2561: fprintf (f, "#include \"sysdeps.h\"\n");
2562: fprintf (f, "#include \"options.h\"\n");
2563: fprintf (f, "#include \"memory.h\"\n");
2564: fprintf (f, "#include \"custom.h\"\n");
2565: fprintf (f, "#include \"newcpu.h\"\n");
1.1.1.17 root 2566: fprintf (f, "#include \"cpu_prefetch.h\"\n");
1.1.1.3 root 2567: fprintf (f, "#include \"cputbl.h\"\n");
1.1.1.19 root 2568:
1.1.1.12 root 2569: fprintf (f, "#define CPUFUNC(x) x##_ff\n"
2570: "#ifdef NOFLAGS\n"
2571: "#include \"noflags.h\"\n"
2572: "#endif\n");
1.1.1.3 root 2573: }
2574:
2575: static int postfix;
2576:
2577: static void generate_one_opcode (int rp)
1.1 root 2578: {
2579: int i;
1.1.1.3 root 2580: uae_u16 smsk, dmsk;
2581: long int opcode = opcode_map[rp];
1.1 root 2582:
1.1.1.3 root 2583: if (table68k[opcode].mnemo == i_ILLG
2584: || table68k[opcode].clev > cpu_level)
2585: return;
1.1 root 2586:
1.1.1.5 root 2587: for (i = 0; lookuptab[i].name[0]; i++) {
1.1.1.3 root 2588: if (table68k[opcode].mnemo == lookuptab[i].mnemo)
2589: break;
2590: }
1.1 root 2591:
1.1.1.3 root 2592: if (table68k[opcode].handler != -1)
2593: return;
1.1 root 2594:
1.1.1.3 root 2595: if (opcode_next_clev[rp] != cpu_level) {
1.1.1.12 root 2596: fprintf (stblfile, "{ CPUFUNC(op_%lx_%d), 0, %ld }, /* %s */\n", opcode, opcode_last_postfix[rp],
1.1.1.3 root 2597: opcode, lookuptab[i].name);
2598: return;
2599: }
1.1.1.12 root 2600: fprintf (stblfile, "{ CPUFUNC(op_%lx_%d), 0, %ld }, /* %s */\n", opcode, postfix, opcode, lookuptab[i].name);
2601: fprintf (headerfile, "extern cpuop_func op_%lx_%d_nf;\n", opcode, postfix);
2602: fprintf (headerfile, "extern cpuop_func op_%lx_%d_ff;\n", opcode, postfix);
2603: printf ("unsigned long REGPARAM2 CPUFUNC(op_%lx_%d)(uae_u32 opcode) /* %s */\n{\n", opcode, postfix, lookuptab[i].name);
1.1.1.3 root 2604:
2605: switch (table68k[opcode].stype) {
1.1.1.14 root 2606: case 0: smsk = 7; break;
2607: case 1: smsk = 255; break;
2608: case 2: smsk = 15; break;
2609: case 3: smsk = 7; break;
2610: case 4: smsk = 7; break;
2611: case 5: smsk = 63; break;
2612: case 7: smsk = 3; break;
2613: default: abort ();
1.1.1.3 root 2614: }
2615: dmsk = 7;
2616:
2617: next_cpu_level = -1;
2618: if (table68k[opcode].suse
1.1.1.5 root 2619: && table68k[opcode].smode != imm && table68k[opcode].smode != imm0
1.1.1.3 root 2620: && table68k[opcode].smode != imm1 && table68k[opcode].smode != imm2
2621: && table68k[opcode].smode != absw && table68k[opcode].smode != absl
2622: && table68k[opcode].smode != PC8r && table68k[opcode].smode != PC16)
2623: {
2624: if (table68k[opcode].spos == -1) {
1.1.1.5 root 2625: if (((int) table68k[opcode].sreg) >= 128)
2626: printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].sreg);
1.1.1.3 root 2627: else
1.1.1.5 root 2628: printf ("\tuae_u32 srcreg = %d;\n", (int) table68k[opcode].sreg);
1.1.1.3 root 2629: } else {
2630: char source[100];
1.1.1.6 root 2631: int pos = table68k[opcode].spos;
1.1.1.5 root 2632:
1.1.1.6 root 2633: if (pos)
2634: sprintf (source, "((opcode >> %d) & %d)", pos, smsk);
1.1.1.3 root 2635: else
1.1.1.5 root 2636: sprintf (source, "(opcode & %d)", smsk);
2637:
1.1.1.3 root 2638: if (table68k[opcode].stype == 3)
2639: printf ("\tuae_u32 srcreg = imm8_table[%s];\n", source);
2640: else if (table68k[opcode].stype == 1)
2641: printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%s;\n", source);
2642: else
2643: printf ("\tuae_u32 srcreg = %s;\n", source);
1.1 root 2644: }
1.1.1.3 root 2645: }
2646: if (table68k[opcode].duse
2647: /* Yes, the dmode can be imm, in case of LINK or DBcc */
1.1.1.5 root 2648: && table68k[opcode].dmode != imm && table68k[opcode].dmode != imm0
1.1.1.3 root 2649: && table68k[opcode].dmode != imm1 && table68k[opcode].dmode != imm2
1.1.1.5 root 2650: && table68k[opcode].dmode != absw && table68k[opcode].dmode != absl)
2651: {
1.1.1.3 root 2652: if (table68k[opcode].dpos == -1) {
1.1.1.5 root 2653: if (((int) table68k[opcode].dreg) >= 128)
2654: printf ("\tuae_u32 dstreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].dreg);
1.1.1.3 root 2655: else
1.1.1.5 root 2656: printf ("\tuae_u32 dstreg = %d;\n", (int) table68k[opcode].dreg);
1.1.1.3 root 2657: } else {
1.1.1.5 root 2658: int pos = table68k[opcode].dpos;
1.1.1.6 root 2659: #if 0
1.1.1.5 root 2660: /* Check that we can do the little endian optimization safely. */
1.1.1.6 root 2661: if (pos < 8 && (dmsk >> (8 - pos)) != 0)
1.1.1.5 root 2662: abort ();
1.1.1.19 root 2663: #endif
1.1.1.5 root 2664: if (pos)
1.1.1.3 root 2665: printf ("\tuae_u32 dstreg = (opcode >> %d) & %d;\n",
1.1.1.5 root 2666: pos, dmsk);
1.1.1.3 root 2667: else
2668: printf ("\tuae_u32 dstreg = opcode & %d;\n", dmsk);
1.1 root 2669: }
2670: }
1.1.1.5 root 2671: need_endlabel = 0;
1.1.1.3 root 2672: endlabelno++;
2673: sprintf (endlabelstr, "endlabel%d", endlabelno);
2674: gen_opcode (opcode);
1.1.1.5 root 2675: if (need_endlabel)
1.1.1.6 root 2676: printf ("%s: ;\n", endlabelstr);
1.1.1.13 root 2677: printf ("return %d;\n", insn_n_cycles * CYCLE_UNIT / 2);
1.1.1.3 root 2678: printf ("}\n");
2679: opcode_next_clev[rp] = next_cpu_level;
2680: opcode_last_postfix[rp] = postfix;
1.1 root 2681: }
2682:
1.1.1.3 root 2683: static void generate_func (void)
1.1 root 2684: {
1.1.1.5 root 2685: int i, j, rp;
1.1 root 2686:
1.1.1.3 root 2687: using_prefetch = 0;
2688: using_exception_3 = 0;
1.1.1.12 root 2689: for (i = 0; i < 6; i++) {
2690: cpu_level = 4 - i;
2691: if (i == 5) {
1.1.1.3 root 2692: cpu_level = 0;
2693: using_prefetch = 1;
2694: using_exception_3 = 1;
2695: for (rp = 0; rp < nr_cpuop_funcs; rp++)
2696: opcode_next_clev[rp] = 0;
2697: }
1.1.1.12 root 2698:
1.1.1.3 root 2699: postfix = i;
1.1.1.12 root 2700: fprintf (stblfile, "struct cputbl CPUFUNC(op_smalltbl_%d)[] = {\n", postfix);
1.1.1.3 root 2701:
1.1.1.5 root 2702: /* sam: this is for people with low memory (eg. me :)) */
2703: printf ("\n"
1.1.1.18 root 2704: "#if !defined(PART_1) && !defined(PART_2) && "
1.1.1.19 root 2705: "!defined(PART_3) && !defined(PART_4) && "
1.1.1.5 root 2706: "!defined(PART_5) && !defined(PART_6) && "
2707: "!defined(PART_7) && !defined(PART_8)"
2708: "\n"
1.1.1.18 root 2709: "#define PART_1 1\n"
2710: "#define PART_2 1\n"
2711: "#define PART_3 1\n"
2712: "#define PART_4 1\n"
2713: "#define PART_5 1\n"
2714: "#define PART_6 1\n"
2715: "#define PART_7 1\n"
2716: "#define PART_8 1\n"
2717: "#endif\n\n");
1.1.1.19 root 2718:
1.1.1.5 root 2719: rp = 0;
1.1.1.18 root 2720: for(j = 1; j <= 8; ++j) {
2721: int k = (j * nr_cpuop_funcs) / 8;
1.1.1.5 root 2722: printf ("#ifdef PART_%d\n",j);
2723: for (; rp < k; rp++)
2724: generate_one_opcode (rp);
2725: printf ("#endif\n\n");
2726: }
2727:
1.1.1.3 root 2728: fprintf (stblfile, "{ 0, 0, 0 }};\n");
1.1 root 2729: }
2730: }
2731:
1.1.1.3 root 2732: int main (int argc, char **argv)
1.1.1.5 root 2733: {
1.1 root 2734: read_table68k ();
2735: do_merges ();
1.1.1.3 root 2736:
1.1.1.5 root 2737: opcode_map = (int *) xmalloc (sizeof (int) * nr_cpuop_funcs);
2738: opcode_last_postfix = (int *) xmalloc (sizeof (int) * nr_cpuop_funcs);
2739: opcode_next_clev = (int *) xmalloc (sizeof (int) * nr_cpuop_funcs);
2740: counts = (unsigned long *) xmalloc (65536 * sizeof (unsigned long));
2741: read_counts ();
1.1.1.3 root 2742:
2743: /* It would be a lot nicer to put all in one file (we'd also get rid of
2744: * cputbl.h that way), but cpuopti can't cope. That could be fixed, but
2745: * I don't dare to touch the 68k version. */
1.1.1.5 root 2746:
1.1.1.3 root 2747: headerfile = fopen ("cputbl.h", "wb");
2748: stblfile = fopen ("cpustbl.c", "wb");
2749: freopen ("cpuemu.c", "wb", stdout);
2750:
2751: generate_includes (stdout);
2752: generate_includes (stblfile);
2753:
2754: generate_func ();
2755:
2756: free (table68k);
1.1 root 2757: return 0;
2758: }
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