Annotation of frontvm/cpu/gencpu.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * UAE - The Un*x Amiga Emulator - CPU core
        !             3:  *
        !             4:  * MC68000 emulation generator
        !             5:  *
        !             6:  * This is a fairly stupid program that generates a lot of case labels that
        !             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().
        !            13:  * The generated code is sometimes sub-optimal, an optimizing compiler should
        !            14:  * take care of this.
        !            15:  *
        !            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
        !            19:  *
        !            20:  * Adaptation to Hatari and better cpu timings by Thomas Huth
        !            21:  *
        !            22:  * This file is distributed under the GNU Public License, version 2 or at
        !            23:  * your option any later version. Read the file gpl.txt for details.
        !            24:  */
        !            25: static char rcsid[] = "Hatari $Id: gencpu.c,v 1.7 2003/03/28 16:20:37 thothy Exp $";
        !            26: 
        !            27: #include <ctype.h>
        !            28: #include <string.h>
        !            29: 
        !            30: #include "sysdeps.h"
        !            31: #include "readcpu.h"
        !            32: 
        !            33: #define BOOL_TYPE "int"
        !            34: 
        !            35: static FILE *headerfile;
        !            36: static FILE *stblfile;
        !            37: 
        !            38: static int using_prefetch;
        !            39: static int using_exception_3;
        !            40: static int cpu_level;
        !            41: 
        !            42: char exactCpuCycles[256];   /* Space to store return string for exact cpu cycles */
        !            43: 
        !            44: 
        !            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;
        !            49: 
        !            50: void write_log (const char *s, ...)
        !            51: {
        !            52:     fprintf (stderr, "%s", s);
        !            53: }
        !            54: 
        !            55: static int *opcode_map;
        !            56: static int *opcode_next_clev;
        !            57: static int *opcode_last_postfix;
        !            58: static unsigned long *counts;
        !            59: 
        !            60: static void read_counts (void)
        !            61: {
        !            62:     FILE *file;
        !            63:     unsigned long opcode, count, total;
        !            64:     char name[20];
        !            65:     int nr = 0;
        !            66:     memset (counts, 0, 65536 * sizeof *counts);
        !            67: 
        !            68:     file = fopen ("frequent.68k", "r");
        !            69:     if (file) {
        !            70:        fscanf (file, "Total: %lu\n", &total);
        !            71:        while (fscanf (file, "%lx: %lu %s\n", &opcode, &count, name) == 3) {
        !            72:            opcode_next_clev[nr] = 4;
        !            73:            opcode_last_postfix[nr] = -1;
        !            74:            opcode_map[nr++] = opcode;
        !            75:            counts[opcode] = count;
        !            76:        }
        !            77:        fclose (file);
        !            78:     }
        !            79:     if (nr == nr_cpuop_funcs)
        !            80:        return;
        !            81:     for (opcode = 0; opcode < 0x10000; opcode++) {
        !            82:        if (table68k[opcode].handler == -1 && table68k[opcode].mnemo != i_ILLG
        !            83:            && counts[opcode] == 0)
        !            84:        {
        !            85:            opcode_next_clev[nr] = 4;
        !            86:            opcode_last_postfix[nr] = -1;
        !            87:            opcode_map[nr++] = opcode;
        !            88:            counts[opcode] = count;
        !            89:        }
        !            90:     }
        !            91:     if (nr != nr_cpuop_funcs)
        !            92:        abort ();
        !            93: }
        !            94: 
        !            95: static char endlabelstr[80];
        !            96: static int endlabelno = 0;
        !            97: static int need_endlabel;
        !            98: 
        !            99: static int n_braces = 0;
        !           100: static int m68k_pc_offset = 0;
        !           101: static int insn_n_cycles;
        !           102: 
        !           103: static void start_brace (void)
        !           104: {
        !           105:     n_braces++;
        !           106:     printf ("{");
        !           107: }
        !           108: 
        !           109: static void close_brace (void)
        !           110: {
        !           111:     assert (n_braces > 0);
        !           112:     n_braces--;
        !           113:     printf ("}");
        !           114: }
        !           115: 
        !           116: static void finish_braces (void)
        !           117: {
        !           118:     while (n_braces > 0)
        !           119:        close_brace ();
        !           120: }
        !           121: 
        !           122: static void pop_braces (int to)
        !           123: {
        !           124:     while (n_braces > to)
        !           125:        close_brace ();
        !           126: }
        !           127: 
        !           128: static int bit_size (int size)
        !           129: {
        !           130:     switch (size) {
        !           131:      case sz_byte: return 8;
        !           132:      case sz_word: return 16;
        !           133:      case sz_long: return 32;
        !           134:      default: abort ();
        !           135:     }
        !           136:     return 0;
        !           137: }
        !           138: 
        !           139: static const char *bit_mask (int size)
        !           140: {
        !           141:     switch (size) {
        !           142:      case sz_byte: return "0xff";
        !           143:      case sz_word: return "0xffff";
        !           144:      case sz_long: return "0xffffffff";
        !           145:      default: abort ();
        !           146:     }
        !           147:     return 0;
        !           148: }
        !           149: 
        !           150: static const char *gen_nextilong (void)
        !           151: {
        !           152:     static char buffer[80];
        !           153:     int r = m68k_pc_offset;
        !           154:     m68k_pc_offset += 4;
        !           155: 
        !           156:     insn_n_cycles += 8;
        !           157: 
        !           158:     if (using_prefetch)
        !           159:        sprintf (buffer, "get_ilong_prefetch(%d)", r);
        !           160:     else
        !           161:        sprintf (buffer, "get_ilong(%d)", r);
        !           162:     return buffer;
        !           163: }
        !           164: 
        !           165: static const char *gen_nextiword (void)
        !           166: {
        !           167:     static char buffer[80];
        !           168:     int r = m68k_pc_offset;
        !           169:     m68k_pc_offset += 2;
        !           170: 
        !           171:     insn_n_cycles += 4;
        !           172: 
        !           173:     if (using_prefetch)
        !           174:        sprintf (buffer, "get_iword_prefetch(%d)", r);
        !           175:     else
        !           176:        sprintf (buffer, "get_iword(%d)", r);
        !           177:     return buffer;
        !           178: }
        !           179: 
        !           180: static const char *gen_nextibyte (void)
        !           181: {
        !           182:     static char buffer[80];
        !           183:     int r = m68k_pc_offset;
        !           184:     m68k_pc_offset += 2;
        !           185: 
        !           186:     insn_n_cycles += 4;
        !           187: 
        !           188:     if (using_prefetch)
        !           189:        sprintf (buffer, "get_ibyte_prefetch(%d)", r);
        !           190:     else
        !           191:        sprintf (buffer, "get_ibyte(%d)", r);
        !           192:     return buffer;
        !           193: }
        !           194: 
        !           195: static void fill_prefetch_0 (void)
        !           196: {
        !           197:     if (using_prefetch)
        !           198:        printf ("fill_prefetch_0 ();\n");
        !           199: }
        !           200: 
        !           201: static void fill_prefetch_2 (void)
        !           202: {
        !           203:     if (using_prefetch)
        !           204:        printf ("fill_prefetch_2 ();\n");
        !           205: }
        !           206: 
        !           207: static void sync_m68k_pc (void)
        !           208: {
        !           209:     if (m68k_pc_offset == 0)
        !           210:        return;
        !           211:     printf ("m68k_incpc(%d);\n", m68k_pc_offset);
        !           212:     switch (m68k_pc_offset) {
        !           213:      case 0:
        !           214:        /*fprintf (stderr, "refilling prefetch at 0\n"); */
        !           215:        break;
        !           216:      case 2:
        !           217:        fill_prefetch_2 ();
        !           218:        break;
        !           219:      default:
        !           220:        fill_prefetch_0 ();
        !           221:        break;
        !           222:     }
        !           223:     m68k_pc_offset = 0;
        !           224: }
        !           225: 
        !           226: /* getv == 1: fetch data; getv != 0: check for odd address. If movem != 0,
        !           227:  * the calling routine handles Apdi and Aipi modes.
        !           228:  * gb-- movem == 2 means the same thing but for a MOVE16 instruction */
        !           229: static void genamode (amodes mode, char *reg, wordsizes size, char *name, int getv, int movem)
        !           230: {
        !           231:     start_brace ();
        !           232:     switch (mode) {
        !           233:     case Dreg:
        !           234:        if (movem)
        !           235:            abort ();
        !           236:        if (getv == 1)
        !           237:            switch (size) {
        !           238:            case sz_byte:
        !           239:                printf ("\tuae_s8 %s = m68k_dreg(regs, %s);\n", name, reg);
        !           240:                break;
        !           241:            case sz_word:
        !           242:                printf ("\tuae_s16 %s = m68k_dreg(regs, %s);\n", name, reg);
        !           243:                break;
        !           244:            case sz_long:
        !           245:                printf ("\tuae_s32 %s = m68k_dreg(regs, %s);\n", name, reg);
        !           246:                break;
        !           247:            default:
        !           248:                abort ();
        !           249:            }
        !           250:        return;
        !           251:     case Areg:
        !           252:        if (movem)
        !           253:            abort ();
        !           254:        if (getv == 1)
        !           255:            switch (size) {
        !           256:            case sz_word:
        !           257:                printf ("\tuae_s16 %s = m68k_areg(regs, %s);\n", name, reg);
        !           258:                break;
        !           259:            case sz_long:
        !           260:                printf ("\tuae_s32 %s = m68k_areg(regs, %s);\n", name, reg);
        !           261:                break;
        !           262:            default:
        !           263:                abort ();
        !           264:            }
        !           265:        return;
        !           266:     case Aind:
        !           267:        printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg);
        !           268:        break;
        !           269:     case Aipi:
        !           270:        printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg);
        !           271:        break;
        !           272:     case Apdi:
        !           273:        insn_n_cycles += 2;
        !           274:        switch (size) {
        !           275:        case sz_byte:
        !           276:            if (movem)
        !           277:                printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg);
        !           278:            else
        !           279:                printf ("\tuaecptr %sa = m68k_areg(regs, %s) - areg_byteinc[%s];\n", name, reg, reg);
        !           280:            break;
        !           281:        case sz_word:
        !           282:            printf ("\tuaecptr %sa = m68k_areg(regs, %s) - %d;\n", name, reg, movem ? 0 : 2);
        !           283:            break;
        !           284:        case sz_long:
        !           285:            printf ("\tuaecptr %sa = m68k_areg(regs, %s) - %d;\n", name, reg, movem ? 0 : 4);
        !           286:            break;
        !           287:        default:
        !           288:            abort ();
        !           289:        }
        !           290:        break;
        !           291:     case Ad16:
        !           292:        printf ("\tuaecptr %sa = m68k_areg(regs, %s) + (uae_s32)(uae_s16)%s;\n", name, reg, gen_nextiword ());
        !           293:        break;
        !           294:     case Ad8r:
        !           295:        insn_n_cycles += 2;
        !           296:        if (cpu_level > 1) {
        !           297:            if (next_cpu_level < 1)
        !           298:                next_cpu_level = 1;
        !           299:            sync_m68k_pc ();
        !           300:            start_brace ();
        !           301:            /* This would ordinarily be done in gen_nextiword, which we bypass.  */
        !           302:            insn_n_cycles += 4;
        !           303:            printf ("\tuaecptr %sa = get_disp_ea_020(m68k_areg(regs, %s), next_iword());\n", name, reg);
        !           304:        } else
        !           305:            printf ("\tuaecptr %sa = get_disp_ea_000(m68k_areg(regs, %s), %s);\n", name, reg, gen_nextiword ());
        !           306: 
        !           307:        break;
        !           308:     case PC16:
        !           309:        printf ("\tuaecptr %sa = m68k_getpc () + %d;\n", name, m68k_pc_offset);
        !           310:        printf ("\t%sa += (uae_s32)(uae_s16)%s;\n", name, gen_nextiword ());
        !           311:        break;
        !           312:     case PC8r:
        !           313:        insn_n_cycles += 2;
        !           314:        if (cpu_level > 1) {
        !           315:            if (next_cpu_level < 1)
        !           316:                next_cpu_level = 1;
        !           317:            sync_m68k_pc ();
        !           318:            start_brace ();
        !           319:            /* This would ordinarily be done in gen_nextiword, which we bypass.  */
        !           320:            insn_n_cycles += 4;
        !           321:            printf ("\tuaecptr tmppc = m68k_getpc();\n");
        !           322:            printf ("\tuaecptr %sa = get_disp_ea_020(tmppc, next_iword());\n", name);
        !           323:        } else {
        !           324:            printf ("\tuaecptr tmppc = m68k_getpc() + %d;\n", m68k_pc_offset);
        !           325:            printf ("\tuaecptr %sa = get_disp_ea_000(tmppc, %s);\n", name, gen_nextiword ());
        !           326:        }
        !           327: 
        !           328:        break;
        !           329:     case absw:
        !           330:        printf ("\tuaecptr %sa = (uae_s32)(uae_s16)%s;\n", name, gen_nextiword ());
        !           331:        break;
        !           332:     case absl:
        !           333:        printf ("\tuaecptr %sa = %s;\n", name, gen_nextilong ());
        !           334:        break;
        !           335:     case imm:
        !           336:        if (getv != 1)
        !           337:            abort ();
        !           338:        switch (size) {
        !           339:        case sz_byte:
        !           340:            printf ("\tuae_s8 %s = %s;\n", name, gen_nextibyte ());
        !           341:            break;
        !           342:        case sz_word:
        !           343:            printf ("\tuae_s16 %s = %s;\n", name, gen_nextiword ());
        !           344:            break;
        !           345:        case sz_long:
        !           346:            printf ("\tuae_s32 %s = %s;\n", name, gen_nextilong ());
        !           347:            break;
        !           348:        default:
        !           349:            abort ();
        !           350:        }
        !           351:        return;
        !           352:     case imm0:
        !           353:        if (getv != 1)
        !           354:            abort ();
        !           355:        printf ("\tuae_s8 %s = %s;\n", name, gen_nextibyte ());
        !           356:        return;
        !           357:     case imm1:
        !           358:        if (getv != 1)
        !           359:            abort ();
        !           360:        printf ("\tuae_s16 %s = %s;\n", name, gen_nextiword ());
        !           361:        return;
        !           362:     case imm2:
        !           363:        if (getv != 1)
        !           364:            abort ();
        !           365:        printf ("\tuae_s32 %s = %s;\n", name, gen_nextilong ());
        !           366:        return;
        !           367:     case immi:
        !           368:        if (getv != 1)
        !           369:            abort ();
        !           370:        printf ("\tuae_u32 %s = %s;\n", name, reg);
        !           371:        return;
        !           372:     default:
        !           373:        abort ();
        !           374:     }
        !           375: 
        !           376:     /* We get here for all non-reg non-immediate addressing modes to
        !           377:      * actually fetch the value. */
        !           378: 
        !           379:     if (using_exception_3 && getv != 0 && size != sz_byte) {       
        !           380:        printf ("\tif ((%sa & 1) != 0) {\n", name);
        !           381:        printf ("\t\tlast_fault_for_exception_3 = %sa;\n", name);
        !           382:        printf ("\t\tlast_op_for_exception_3 = opcode;\n");
        !           383:        printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + %d;\n", m68k_pc_offset);
        !           384:        printf ("\t\tException(3, 0);\n");
        !           385:        printf ("\t\tgoto %s;\n", endlabelstr);
        !           386:        printf ("\t}\n");
        !           387:        need_endlabel = 1;
        !           388:        start_brace ();
        !           389:     }
        !           390: 
        !           391:     if (getv == 1) {
        !           392:        switch (size) {
        !           393:        case sz_byte: insn_n_cycles += 4; break;
        !           394:        case sz_word: insn_n_cycles += 4; break;
        !           395:        case sz_long: insn_n_cycles += 8; break;
        !           396:        default: abort ();
        !           397:        }
        !           398:        start_brace ();
        !           399:        switch (size) {
        !           400:        case sz_byte: printf ("\tuae_s8 %s = get_byte(%sa);\n", name, name); break;
        !           401:        case sz_word: printf ("\tuae_s16 %s = get_word(%sa);\n", name, name); break;
        !           402:        case sz_long: printf ("\tuae_s32 %s = get_long(%sa);\n", name, name); break;
        !           403:        default: abort ();
        !           404:        }
        !           405:     }
        !           406: 
        !           407:     /* We now might have to fix up the register for pre-dec or post-inc
        !           408:      * addressing modes. */
        !           409:     if (!movem)
        !           410:        switch (mode) {
        !           411:        case Aipi:
        !           412:            switch (size) {
        !           413:            case sz_byte:
        !           414:                printf ("\tm68k_areg(regs, %s) += areg_byteinc[%s];\n", reg, reg);
        !           415:                break;
        !           416:            case sz_word:
        !           417:                printf ("\tm68k_areg(regs, %s) += 2;\n", reg);
        !           418:                break;
        !           419:            case sz_long:
        !           420:                printf ("\tm68k_areg(regs, %s) += 4;\n", reg);
        !           421:                break;
        !           422:            default:
        !           423:                abort ();
        !           424:            }
        !           425:            break;
        !           426:        case Apdi:
        !           427:            printf ("\tm68k_areg (regs, %s) = %sa;\n", reg, name);
        !           428:            break;
        !           429:        default:
        !           430:            break;
        !           431:        }
        !           432: }
        !           433: 
        !           434: static void genastore (char *from, amodes mode, char *reg, wordsizes size, char *to)
        !           435: {
        !           436:     switch (mode) {
        !           437:      case Dreg:
        !           438:        switch (size) {
        !           439:         case sz_byte:
        !           440:            printf ("\tm68k_dreg(regs, %s) = (m68k_dreg(regs, %s) & ~0xff) | ((%s) & 0xff);\n", reg, reg, from);
        !           441:            break;
        !           442:         case sz_word:
        !           443:            printf ("\tm68k_dreg(regs, %s) = (m68k_dreg(regs, %s) & ~0xffff) | ((%s) & 0xffff);\n", reg, reg, from);
        !           444:            break;
        !           445:         case sz_long:
        !           446:            printf ("\tm68k_dreg(regs, %s) = (%s);\n", reg, from);
        !           447:            break;
        !           448:         default:
        !           449:            abort ();
        !           450:        }
        !           451:        break;
        !           452:      case Areg:
        !           453:        switch (size) {
        !           454:         case sz_word:
        !           455:            fprintf (stderr, "Foo\n");
        !           456:            printf ("\tm68k_areg(regs, %s) = (uae_s32)(uae_s16)(%s);\n", reg, from);
        !           457:            break;
        !           458:         case sz_long:
        !           459:            printf ("\tm68k_areg(regs, %s) = (%s);\n", reg, from);
        !           460:            break;
        !           461:         default:
        !           462:            abort ();
        !           463:        }
        !           464:        break;
        !           465:      case Aind:
        !           466:      case Aipi:
        !           467:      case Apdi:
        !           468:      case Ad16:
        !           469:      case Ad8r:
        !           470:      case absw:
        !           471:      case absl:
        !           472:      case PC16:
        !           473:      case PC8r:
        !           474:        if (using_prefetch)
        !           475:            sync_m68k_pc ();
        !           476:        switch (size) {
        !           477:         case sz_byte:
        !           478:            insn_n_cycles += 4;
        !           479:            printf ("\tput_byte(%sa,%s);\n", to, from);
        !           480:            break;
        !           481:         case sz_word:
        !           482:            insn_n_cycles += 4;
        !           483:            if (cpu_level < 2 && (mode == PC16 || mode == PC8r))
        !           484:                abort ();
        !           485:            printf ("\tput_word(%sa,%s);\n", to, from);
        !           486:            break;
        !           487:         case sz_long:
        !           488:            insn_n_cycles += 8;
        !           489:            if (cpu_level < 2 && (mode == PC16 || mode == PC8r))
        !           490:                abort ();
        !           491:            printf ("\tput_long(%sa,%s);\n", to, from);
        !           492:            break;
        !           493:         default:
        !           494:            abort ();
        !           495:        }
        !           496:        break;
        !           497:      case imm:
        !           498:      case imm0:
        !           499:      case imm1:
        !           500:      case imm2:
        !           501:      case immi:
        !           502:        abort ();
        !           503:        break;
        !           504:      default:
        !           505:        abort ();
        !           506:     }
        !           507: }
        !           508: 
        !           509: 
        !           510: static void genmovemel (uae_u16 opcode)
        !           511: {
        !           512:     char getcode[100];
        !           513:     int bMovemLong = (table68k[opcode].size == sz_long);
        !           514:     int size = bMovemLong ? 4 : 2;
        !           515: 
        !           516:     if (bMovemLong) {
        !           517:        strcpy (getcode, "get_long(srca)");
        !           518:     } else {
        !           519:        strcpy (getcode, "(uae_s32)(uae_s16)get_word(srca)");
        !           520:     }
        !           521: 
        !           522:     printf ("\tuae_u16 mask = %s;\n", gen_nextiword ());
        !           523:     printf ("\tunsigned int dmask = mask & 0xff, amask = (mask >> 8) & 0xff;\n");
        !           524:     printf ("\tretcycles = 0;\n");
        !           525:     genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 2, 1);
        !           526:     start_brace ();
        !           527:     printf ("\twhile (dmask) { m68k_dreg(regs, movem_index1[dmask]) = %s;"
        !           528:             " srca += %d; dmask = movem_next[dmask]; retcycles+=%d; }\n",
        !           529:            getcode, size, (bMovemLong ? 8 : 4));
        !           530:     printf ("\twhile (amask) { m68k_areg(regs, movem_index1[amask]) = %s;"
        !           531:             " srca += %d; amask = movem_next[amask]; retcycles+=%d; }\n",
        !           532:            getcode, size, (bMovemLong ? 8 : 4));
        !           533: 
        !           534:     if (table68k[opcode].dmode == Aipi)
        !           535:        printf ("\tm68k_areg(regs, dstreg) = srca;\n");
        !           536: 
        !           537:     /* Better cycles - experimental! (Thothy) */
        !           538:     switch(table68k[opcode].dmode)
        !           539:     {
        !           540:       case Aind:  insn_n_cycles=12; break;
        !           541:       case Aipi:  insn_n_cycles=12; break;
        !           542:       case Ad16:  insn_n_cycles=16; break;
        !           543:       case Ad8r:  insn_n_cycles=18; break;
        !           544:       case absw:  insn_n_cycles=16; break;
        !           545:       case absl:  insn_n_cycles=20; break;
        !           546:       case PC16:  insn_n_cycles=16; break;
        !           547:       case PC8r:  insn_n_cycles=18; break;
        !           548:     }
        !           549:     sprintf(exactCpuCycles," return (%i+retcycles);", insn_n_cycles);
        !           550: }
        !           551: 
        !           552: static void genmovemle (uae_u16 opcode)
        !           553: {
        !           554:     char putcode[100];
        !           555:     int bMovemLong = (table68k[opcode].size == sz_long);
        !           556:     int size = bMovemLong ? 4 : 2;
        !           557: 
        !           558:     if (bMovemLong) {
        !           559:        strcpy (putcode, "put_long(srca,");
        !           560:     } else {
        !           561:        strcpy (putcode, "put_word(srca,");
        !           562:     }
        !           563: 
        !           564:     printf ("\tuae_u16 mask = %s;\n", gen_nextiword ());
        !           565:     printf ("\tretcycles = 0;\n");
        !           566:     genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 2, 1);
        !           567:     if (using_prefetch)
        !           568:        sync_m68k_pc ();
        !           569: 
        !           570:     start_brace ();
        !           571:     if (table68k[opcode].dmode == Apdi) {
        !           572:         printf ("\tuae_u16 amask = mask & 0xff, dmask = (mask >> 8) & 0xff;\n");
        !           573:         printf ("\twhile (amask) { srca -= %d; %s m68k_areg(regs, movem_index2[amask]));"
        !           574:                 " amask = movem_next[amask]; retcycles+=%d; }\n",
        !           575:                 size, putcode, (bMovemLong ? 8 : 4));
        !           576:         printf ("\twhile (dmask) { srca -= %d; %s m68k_dreg(regs, movem_index2[dmask]));"
        !           577:                 " dmask = movem_next[dmask]; retcycles+=%d; }\n",
        !           578:                 size, putcode, (bMovemLong ? 8 : 4));
        !           579:         printf ("\tm68k_areg(regs, dstreg) = srca;\n");
        !           580:     } else {
        !           581:         printf ("\tuae_u16 dmask = mask & 0xff, amask = (mask >> 8) & 0xff;\n");
        !           582:         printf ("\twhile (dmask) { %s m68k_dreg(regs, movem_index1[dmask])); srca += %d;"
        !           583:                 " dmask = movem_next[dmask]; retcycles+=%d; }\n",
        !           584:                 putcode, size, (bMovemLong ? 8 : 4));
        !           585:         printf ("\twhile (amask) { %s m68k_areg(regs, movem_index1[amask])); srca += %d;"
        !           586:                 " amask = movem_next[amask]; retcycles+=%d; }\n",
        !           587:                 putcode, size, (bMovemLong ? 8 : 4));
        !           588:     }
        !           589: 
        !           590:     /* Better cycles - experimental! (Thothy) */
        !           591:     switch(table68k[opcode].dmode)
        !           592:     {
        !           593:       case Aind:  insn_n_cycles=8; break;
        !           594:       case Apdi:  insn_n_cycles=8; break;
        !           595:       case Ad16:  insn_n_cycles=12; break;
        !           596:       case Ad8r:  insn_n_cycles=14; break;
        !           597:       case absw:  insn_n_cycles=12; break;
        !           598:       case absl:  insn_n_cycles=16; break;
        !           599:     }
        !           600:     sprintf(exactCpuCycles," return (%i+retcycles);", insn_n_cycles);
        !           601: }
        !           602: 
        !           603: 
        !           604: static void duplicate_carry (void)
        !           605: {
        !           606:     printf ("\tCOPY_CARRY;\n");
        !           607: }
        !           608: 
        !           609: typedef enum
        !           610: {
        !           611:   flag_logical_noclobber, flag_logical, flag_add, flag_sub, flag_cmp, flag_addx, flag_subx, flag_zn,
        !           612:   flag_av, flag_sv
        !           613: }
        !           614: flagtypes;
        !           615: 
        !           616: static void genflags_normal (flagtypes type, wordsizes size, char *value, char *src, char *dst)
        !           617: {
        !           618:     char vstr[100], sstr[100], dstr[100];
        !           619:     char usstr[100], udstr[100];
        !           620:     char unsstr[100], undstr[100];
        !           621: 
        !           622:     switch (size) {
        !           623:      case sz_byte:
        !           624:        strcpy (vstr, "((uae_s8)(");
        !           625:        strcpy (usstr, "((uae_u8)(");
        !           626:        break;
        !           627:      case sz_word:
        !           628:        strcpy (vstr, "((uae_s16)(");
        !           629:        strcpy (usstr, "((uae_u16)(");
        !           630:        break;
        !           631:      case sz_long:
        !           632:        strcpy (vstr, "((uae_s32)(");
        !           633:        strcpy (usstr, "((uae_u32)(");
        !           634:        break;
        !           635:      default:
        !           636:        abort ();
        !           637:     }
        !           638:     strcpy (unsstr, usstr);
        !           639: 
        !           640:     strcpy (sstr, vstr);
        !           641:     strcpy (dstr, vstr);
        !           642:     strcat (vstr, value);
        !           643:     strcat (vstr, "))");
        !           644:     strcat (dstr, dst);
        !           645:     strcat (dstr, "))");
        !           646:     strcat (sstr, src);
        !           647:     strcat (sstr, "))");
        !           648: 
        !           649:     strcpy (udstr, usstr);
        !           650:     strcat (udstr, dst);
        !           651:     strcat (udstr, "))");
        !           652:     strcat (usstr, src);
        !           653:     strcat (usstr, "))");
        !           654: 
        !           655:     strcpy (undstr, unsstr);
        !           656:     strcat (unsstr, "-");
        !           657:     strcat (undstr, "~");
        !           658:     strcat (undstr, dst);
        !           659:     strcat (undstr, "))");
        !           660:     strcat (unsstr, src);
        !           661:     strcat (unsstr, "))");
        !           662: 
        !           663:     switch (type) {
        !           664:      case flag_logical_noclobber:
        !           665:      case flag_logical:
        !           666:      case flag_zn:
        !           667:      case flag_av:
        !           668:      case flag_sv:
        !           669:      case flag_addx:
        !           670:      case flag_subx:
        !           671:        break;
        !           672: 
        !           673:      case flag_add:
        !           674:        start_brace ();
        !           675:        printf ("uae_u32 %s = %s + %s;\n", value, dstr, sstr);
        !           676:        break;
        !           677:      case flag_sub:
        !           678:      case flag_cmp:
        !           679:        start_brace ();
        !           680:        printf ("uae_u32 %s = %s - %s;\n", value, dstr, sstr);
        !           681:        break;
        !           682:     }
        !           683: 
        !           684:     switch (type) {
        !           685:      case flag_logical_noclobber:
        !           686:      case flag_logical:
        !           687:      case flag_zn:
        !           688:        break;
        !           689: 
        !           690:      case flag_add:
        !           691:      case flag_sub:
        !           692:      case flag_addx:
        !           693:      case flag_subx:
        !           694:      case flag_cmp:
        !           695:      case flag_av:
        !           696:      case flag_sv:
        !           697:        start_brace ();
        !           698:        printf ("\t" BOOL_TYPE " flgs = %s < 0;\n", sstr);
        !           699:        printf ("\t" BOOL_TYPE " flgo = %s < 0;\n", dstr);
        !           700:        printf ("\t" BOOL_TYPE " flgn = %s < 0;\n", vstr);
        !           701:        break;
        !           702:     }
        !           703: 
        !           704:     switch (type) {
        !           705:      case flag_logical:
        !           706:        printf ("\tCLEAR_CZNV;\n");
        !           707:        printf ("\tSET_ZFLG (%s == 0);\n", vstr);
        !           708:        printf ("\tSET_NFLG (%s < 0);\n", vstr);
        !           709:        break;
        !           710:      case flag_logical_noclobber:
        !           711:        printf ("\tSET_ZFLG (%s == 0);\n", vstr);
        !           712:        printf ("\tSET_NFLG (%s < 0);\n", vstr);
        !           713:        break;
        !           714:      case flag_av:
        !           715:        printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n");
        !           716:        break;
        !           717:      case flag_sv:
        !           718:        printf ("\tSET_VFLG ((flgs ^ flgo) & (flgn ^ flgo));\n");
        !           719:        break;
        !           720:      case flag_zn:
        !           721:        printf ("\tSET_ZFLG (GET_ZFLG & (%s == 0));\n", vstr);
        !           722:        printf ("\tSET_NFLG (%s < 0);\n", vstr);
        !           723:        break;
        !           724:      case flag_add:
        !           725:        printf ("\tSET_ZFLG (%s == 0);\n", vstr);
        !           726:        printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n");
        !           727:        printf ("\tSET_CFLG (%s < %s);\n", undstr, usstr);
        !           728:        duplicate_carry ();
        !           729:        printf ("\tSET_NFLG (flgn != 0);\n");
        !           730:        break;
        !           731:      case flag_sub:
        !           732:        printf ("\tSET_ZFLG (%s == 0);\n", vstr);
        !           733:        printf ("\tSET_VFLG ((flgs ^ flgo) & (flgn ^ flgo));\n");
        !           734:        printf ("\tSET_CFLG (%s > %s);\n", usstr, udstr);
        !           735:        duplicate_carry ();
        !           736:        printf ("\tSET_NFLG (flgn != 0);\n");
        !           737:        break;
        !           738:      case flag_addx:
        !           739:        printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n"); /* minterm SON: 0x42 */
        !           740:        printf ("\tSET_CFLG (flgs ^ ((flgs ^ flgo) & (flgo ^ flgn)));\n"); /* minterm SON: 0xD4 */
        !           741:        duplicate_carry ();
        !           742:        break;
        !           743:      case flag_subx:
        !           744:        printf ("\tSET_VFLG ((flgs ^ flgo) & (flgo ^ flgn));\n"); /* minterm SON: 0x24 */
        !           745:        printf ("\tSET_CFLG (flgs ^ ((flgs ^ flgn) & (flgo ^ flgn)));\n"); /* minterm SON: 0xB2 */
        !           746:        duplicate_carry ();
        !           747:        break;
        !           748:      case flag_cmp:
        !           749:        printf ("\tSET_ZFLG (%s == 0);\n", vstr);
        !           750:        printf ("\tSET_VFLG ((flgs != flgo) && (flgn != flgo));\n");
        !           751:        printf ("\tSET_CFLG (%s > %s);\n", usstr, udstr);
        !           752:        printf ("\tSET_NFLG (flgn != 0);\n");
        !           753:        break;
        !           754:     }
        !           755: }
        !           756: 
        !           757: static void genflags (flagtypes type, wordsizes size, char *value, char *src, char *dst)
        !           758: {
        !           759:     /* Temporarily deleted 68k/ARM flag optimizations.  I'd prefer to have
        !           760:        them in the appropriate m68k.h files and use just one copy of this
        !           761:        code here.  The API can be changed if necessary.  */
        !           762: #ifdef OPTIMIZED_FLAGS
        !           763:     switch (type) {
        !           764:      case flag_add:
        !           765:      case flag_sub:
        !           766:        start_brace ();
        !           767:        printf ("\tuae_u32 %s;\n", value);
        !           768:        break;
        !           769: 
        !           770:      default:
        !           771:        break;
        !           772:     }
        !           773: 
        !           774:     /* At least some of those casts are fairly important! */
        !           775:     switch (type) {
        !           776:      case flag_logical_noclobber:
        !           777:        printf ("\t{uae_u32 oldcznv = GET_CZNV & ~(FLAGVAL_Z | FLAGVAL_N);\n");
        !           778:        if (strcmp (value, "0") == 0) {
        !           779:            printf ("\tSET_CZNV (olcznv | FLAGVAL_Z);\n");
        !           780:        } else {
        !           781:            switch (size) {
        !           782:             case sz_byte: printf ("\toptflag_testb ((uae_s8)(%s));\n", value); break;
        !           783:             case sz_word: printf ("\toptflag_testw ((uae_s16)(%s));\n", value); break;
        !           784:             case sz_long: printf ("\toptflag_testl ((uae_s32)(%s));\n", value); break;
        !           785:            }
        !           786:            printf ("\tIOR_CZNV (oldcznv);\n");
        !           787:        }
        !           788:        printf ("\t}\n");
        !           789:        return;
        !           790:      case flag_logical:
        !           791:        if (strcmp (value, "0") == 0) {
        !           792:            printf ("\tSET_CZNV (FLAGVAL_Z);\n");
        !           793:        } else {
        !           794:            switch (size) {
        !           795:             case sz_byte: printf ("\toptflag_testb ((uae_s8)(%s));\n", value); break;
        !           796:             case sz_word: printf ("\toptflag_testw ((uae_s16)(%s));\n", value); break;
        !           797:             case sz_long: printf ("\toptflag_testl ((uae_s32)(%s));\n", value); break;
        !           798:            }
        !           799:        }
        !           800:        return;
        !           801: 
        !           802:      case flag_add:
        !           803:        switch (size) {
        !           804:         case sz_byte: printf ("\toptflag_addb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
        !           805:         case sz_word: printf ("\toptflag_addw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
        !           806:         case sz_long: printf ("\toptflag_addl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
        !           807:        }
        !           808:        return;
        !           809: 
        !           810:      case flag_sub:
        !           811:        switch (size) {
        !           812:         case sz_byte: printf ("\toptflag_subb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
        !           813:         case sz_word: printf ("\toptflag_subw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
        !           814:         case sz_long: printf ("\toptflag_subl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
        !           815:        }
        !           816:        return;
        !           817: 
        !           818:      case flag_cmp:
        !           819:        switch (size) {
        !           820:         case sz_byte: printf ("\toptflag_cmpb ((uae_s8)(%s), (uae_s8)(%s));\n", src, dst); break;
        !           821:         case sz_word: printf ("\toptflag_cmpw ((uae_s16)(%s), (uae_s16)(%s));\n", src, dst); break;
        !           822:         case sz_long: printf ("\toptflag_cmpl ((uae_s32)(%s), (uae_s32)(%s));\n", src, dst); break;
        !           823:        }
        !           824:        return;
        !           825:        
        !           826:      default:
        !           827:        break;
        !           828:     }
        !           829: #endif
        !           830: 
        !           831:     genflags_normal (type, size, value, src, dst);
        !           832: }
        !           833: 
        !           834: static void force_range_for_rox (const char *var, wordsizes size)
        !           835: {
        !           836:     /* Could do a modulo operation here... which one is faster? */
        !           837:     switch (size) {
        !           838:      case sz_long:
        !           839:        printf ("\tif (%s >= 33) %s -= 33;\n", var, var);
        !           840:        break;
        !           841:      case sz_word:
        !           842:        printf ("\tif (%s >= 34) %s -= 34;\n", var, var);
        !           843:        printf ("\tif (%s >= 17) %s -= 17;\n", var, var);
        !           844:        break;
        !           845:      case sz_byte:
        !           846:        printf ("\tif (%s >= 36) %s -= 36;\n", var, var);
        !           847:        printf ("\tif (%s >= 18) %s -= 18;\n", var, var);
        !           848:        printf ("\tif (%s >= 9) %s -= 9;\n", var, var);
        !           849:        break;
        !           850:     }
        !           851: }
        !           852: 
        !           853: static const char *cmask (wordsizes size)
        !           854: {
        !           855:     switch (size) {
        !           856:      case sz_byte: return "0x80";
        !           857:      case sz_word: return "0x8000";
        !           858:      case sz_long: return "0x80000000";
        !           859:      default: abort ();
        !           860:     }
        !           861: }
        !           862: 
        !           863: static int source_is_imm1_8 (struct instr *i)
        !           864: {
        !           865:     return i->stype == 3;
        !           866: }
        !           867: 
        !           868: 
        !           869: 
        !           870: static void gen_opcode (unsigned long int opcode)
        !           871: {
        !           872: #if 0
        !           873:     char *amodenames[] = { "Dreg", "Areg", "Aind", "Aipi", "Apdi", "Ad16", "Ad8r",
        !           874:          "absw", "absl", "PC16", "PC8r", "imm", "imm0", "imm1", "imm2", "immi", "am_unknown", "am_illg"};
        !           875: #endif
        !           876: 
        !           877:     struct instr *curi = table68k + opcode;
        !           878:     insn_n_cycles = 4;
        !           879: 
        !           880:     start_brace ();
        !           881:     m68k_pc_offset = 2;
        !           882: 
        !           883:     switch (curi->plev) {
        !           884:     case 0: /* not privileged */
        !           885:        break;
        !           886:     case 1: /* unprivileged only on 68000 */
        !           887:        if (cpu_level == 0)
        !           888:            break;
        !           889:        if (next_cpu_level < 0)
        !           890:            next_cpu_level = 0;
        !           891: 
        !           892:        /* fall through */
        !           893:     case 2: /* priviledged */
        !           894:        printf ("if (!regs.s) { Exception(8,0); goto %s; }\n", endlabelstr);
        !           895:        need_endlabel = 1;
        !           896:        start_brace ();
        !           897:        break;
        !           898:     case 3: /* privileged if size == word */
        !           899:        if (curi->size == sz_byte)
        !           900:            break;
        !           901:        printf ("if (!regs.s) { Exception(8,0); goto %s; }\n", endlabelstr);
        !           902:        need_endlabel = 1;
        !           903:        start_brace ();
        !           904:        break;
        !           905:     }
        !           906: 
        !           907:     /* Build the opcodes: */
        !           908:     switch (curi->mnemo) {
        !           909:     case i_OR:
        !           910:     case i_AND:
        !           911:     case i_EOR:
        !           912:         genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           913:         genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !           914:         printf ("\tsrc %c= dst;\n", curi->mnemo == i_OR ? '|' : curi->mnemo == i_AND ? '&' : '^');
        !           915:         genflags (flag_logical, curi->size, "src", "", "");
        !           916:         genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
        !           917:         if(curi->size==sz_long && curi->dmode==Dreg)
        !           918:          {
        !           919:           insn_n_cycles += 2;
        !           920:           if(curi->smode==Dreg || curi->smode==Areg || (curi->smode>=imm && curi->smode<=immi))
        !           921:             insn_n_cycles += 2;
        !           922:          }
        !           923: #if 0
        !           924:         /* Output the CPU cycles: */
        !           925:         fprintf(stderr,"MOVE, size %i: ",curi->size);
        !           926:         fprintf(stderr," %s ->",amodenames[curi->smode]);
        !           927:         fprintf(stderr," %s ",amodenames[curi->dmode]);
        !           928:         fprintf(stderr," Cycles: %i\n",insn_n_cycles);
        !           929: #endif
        !           930:         break;
        !           931:     case i_ORSR:
        !           932:     case i_EORSR:
        !           933:         printf ("\tMakeSR();\n");
        !           934:         genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           935:         if (curi->size == sz_byte) {
        !           936:             printf ("\tsrc &= 0xFF;\n");
        !           937:         }
        !           938:         printf ("\tregs.sr %c= src;\n", curi->mnemo == i_EORSR ? '^' : '|');
        !           939:         printf ("\tMakeFromSR();\n");
        !           940:         insn_n_cycles = 20;
        !           941:         break;
        !           942:     case i_ANDSR:
        !           943:         printf ("\tMakeSR();\n");
        !           944:         genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           945:         if (curi->size == sz_byte) {
        !           946:             printf ("\tsrc |= 0xFF00;\n");
        !           947:         }
        !           948:         printf ("\tregs.sr &= src;\n");
        !           949:         printf ("\tMakeFromSR();\n");
        !           950:         insn_n_cycles = 20;
        !           951:         break;
        !           952:     case i_SUB:
        !           953:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           954:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !           955:        start_brace ();
        !           956:        genflags (flag_sub, curi->size, "newv", "src", "dst");
        !           957:        genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
        !           958:         if(curi->size==sz_long && curi->dmode==Dreg)
        !           959:          {
        !           960:           insn_n_cycles += 2;
        !           961:           if(curi->smode==Dreg || curi->smode==Areg || (curi->smode>=imm && curi->smode<=immi))
        !           962:             insn_n_cycles += 2;
        !           963:          }
        !           964:        break;
        !           965:     case i_SUBA:
        !           966:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           967:        genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
        !           968:        start_brace ();
        !           969:        printf ("\tuae_u32 newv = dst - src;\n");
        !           970:        genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
        !           971:         if(curi->size==sz_long && curi->smode!=Dreg && curi->smode!=Areg && !(curi->smode>=imm && curi->smode<=immi))
        !           972:           insn_n_cycles += 2;
        !           973:          else
        !           974:           insn_n_cycles += 4;
        !           975:        break;
        !           976:     case i_SUBX:
        !           977:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           978:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !           979:        start_brace ();
        !           980:        printf ("\tuae_u32 newv = dst - src - (GET_XFLG ? 1 : 0);\n");
        !           981:        genflags (flag_subx, curi->size, "newv", "src", "dst");
        !           982:        genflags (flag_zn, curi->size, "newv", "", "");
        !           983:        genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
        !           984:         if(curi->smode==Dreg && curi->size==sz_long)
        !           985:           insn_n_cycles=8;
        !           986:         if(curi->smode==Apdi)
        !           987:          {
        !           988:           if(curi->size==sz_long)
        !           989:             insn_n_cycles=30;
        !           990:            else
        !           991:             insn_n_cycles=18;
        !           992:          }
        !           993:        break;
        !           994:     case i_SBCD:
        !           995:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           996:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !           997:        start_brace ();
        !           998:        printf ("\tuae_u16 newv_lo = (dst & 0xF) - (src & 0xF) - (GET_XFLG ? 1 : 0);\n");
        !           999:        printf ("\tuae_u16 newv_hi = (dst & 0xF0) - (src & 0xF0);\n");
        !          1000:        printf ("\tuae_u16 newv, tmp_newv;\n");
        !          1001:        printf ("\tint bcd = 0;\n");
        !          1002:        printf ("\tnewv = tmp_newv = newv_hi + newv_lo;\n");
        !          1003:        printf ("\tif (newv_lo & 0xF0) { newv -= 6; bcd = 6; };\n");
        !          1004:        printf ("\tif ((((dst & 0xFF) - (src & 0xFF) - (GET_XFLG ? 1 : 0)) & 0x100) > 0xFF) { newv -= 0x60; }\n");
        !          1005:        printf ("\tSET_CFLG ((((dst & 0xFF) - (src & 0xFF) - bcd - (GET_XFLG ? 1 : 0)) & 0x300) > 0xFF);\n");
        !          1006:        duplicate_carry ();
        !          1007:        genflags (flag_zn, curi->size, "newv", "", "");
        !          1008:        printf ("\tSET_VFLG ((tmp_newv & 0x80) != 0 && (newv & 0x80) == 0);\n");
        !          1009:        genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
        !          1010:        if(curi->smode==Dreg)  insn_n_cycles=6;
        !          1011:        if(curi->smode==Apdi)  insn_n_cycles=18;
        !          1012:        break;
        !          1013:     case i_ADD:
        !          1014:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1015:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1016:        start_brace ();
        !          1017:        genflags (flag_add, curi->size, "newv", "src", "dst");
        !          1018:        genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
        !          1019:         if(curi->size==sz_long && curi->dmode==Dreg)
        !          1020:          {
        !          1021:           insn_n_cycles += 2;
        !          1022:           if(curi->smode==Dreg || curi->smode==Areg || (curi->smode>=imm && curi->smode<=immi))
        !          1023:             insn_n_cycles += 2;
        !          1024:          }
        !          1025:        break;
        !          1026:     case i_ADDA:
        !          1027:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1028:        genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
        !          1029:        start_brace ();
        !          1030:        printf ("\tuae_u32 newv = dst + src;\n");
        !          1031:        genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
        !          1032:         if(curi->size==sz_long && curi->smode!=Dreg && curi->smode!=Areg && !(curi->smode>=imm && curi->smode<=immi))
        !          1033:           insn_n_cycles += 2;
        !          1034:          else
        !          1035:           insn_n_cycles += 4;
        !          1036:        break;
        !          1037:     case i_ADDX:
        !          1038:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1039:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1040:        start_brace ();
        !          1041:        printf ("\tuae_u32 newv = dst + src + (GET_XFLG ? 1 : 0);\n");
        !          1042:        genflags (flag_addx, curi->size, "newv", "src", "dst");
        !          1043:        genflags (flag_zn, curi->size, "newv", "", "");
        !          1044:        genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
        !          1045:         if(curi->smode==Dreg && curi->size==sz_long)
        !          1046:           insn_n_cycles=8;
        !          1047:         if(curi->smode==Apdi)
        !          1048:          {
        !          1049:           if(curi->size==sz_long)
        !          1050:             insn_n_cycles=30;
        !          1051:            else
        !          1052:             insn_n_cycles=18;
        !          1053:          }
        !          1054:        break;
        !          1055:     case i_ABCD:
        !          1056:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1057:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1058:        start_brace ();
        !          1059:        printf ("\tuae_u16 newv_lo = (src & 0xF) + (dst & 0xF) + (GET_XFLG ? 1 : 0);\n");
        !          1060:        printf ("\tuae_u16 newv_hi = (src & 0xF0) + (dst & 0xF0);\n");
        !          1061:        printf ("\tuae_u16 newv, tmp_newv;\n");
        !          1062:        printf ("\tint cflg;\n");
        !          1063:        printf ("\tnewv = tmp_newv = newv_hi + newv_lo;");
        !          1064:        printf ("\tif (newv_lo > 9) { newv += 6; }\n");
        !          1065:        printf ("\tcflg = (newv & 0x3F0) > 0x90;\n");
        !          1066:        printf ("\tif (cflg) newv += 0x60;\n");
        !          1067:        printf ("\tSET_CFLG (cflg);\n");
        !          1068:        duplicate_carry ();
        !          1069:        genflags (flag_zn, curi->size, "newv", "", "");
        !          1070:        printf ("\tSET_VFLG ((tmp_newv & 0x80) == 0 && (newv & 0x80) != 0);\n");
        !          1071:        genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
        !          1072:        if(curi->smode==Dreg)  insn_n_cycles=6;
        !          1073:        if(curi->smode==Apdi)  insn_n_cycles=18;
        !          1074:        break;
        !          1075:     case i_NEG:
        !          1076:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1077:        start_brace ();
        !          1078:        genflags (flag_sub, curi->size, "dst", "src", "0");
        !          1079:        genastore ("dst", curi->smode, "srcreg", curi->size, "src");
        !          1080:         if(curi->size==sz_long && curi->smode==Dreg)  insn_n_cycles += 2;
        !          1081:        break;
        !          1082:     case i_NEGX:
        !          1083:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1084:        start_brace ();
        !          1085:        printf ("\tuae_u32 newv = 0 - src - (GET_XFLG ? 1 : 0);\n");
        !          1086:        genflags (flag_subx, curi->size, "newv", "src", "0");
        !          1087:        genflags (flag_zn, curi->size, "newv", "", "");
        !          1088:        genastore ("newv", curi->smode, "srcreg", curi->size, "src");
        !          1089:         if(curi->size==sz_long && curi->smode==Dreg)  insn_n_cycles += 2;
        !          1090:        break;
        !          1091:     case i_NBCD:
        !          1092:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1093:        start_brace ();
        !          1094:        printf ("\tuae_u16 newv_lo = - (src & 0xF) - (GET_XFLG ? 1 : 0);\n");
        !          1095:        printf ("\tuae_u16 newv_hi = - (src & 0xF0);\n");
        !          1096:        printf ("\tuae_u16 newv;\n");
        !          1097:        printf ("\tint cflg;\n");
        !          1098:        printf ("\tif (newv_lo > 9) { newv_lo -= 6; }\n");
        !          1099:        printf ("\tnewv = newv_hi + newv_lo;");
        !          1100:        printf ("\tcflg = (newv & 0x1F0) > 0x90;\n");
        !          1101:        printf ("\tif (cflg) newv -= 0x60;\n");
        !          1102:        printf ("\tSET_CFLG (cflg);\n");
        !          1103:        duplicate_carry();
        !          1104:        genflags (flag_zn, curi->size, "newv", "", "");
        !          1105:        genastore ("newv", curi->smode, "srcreg", curi->size, "src");
        !          1106:        if(curi->smode==Dreg)  insn_n_cycles += 2;
        !          1107:        break;
        !          1108:     case i_CLR:
        !          1109:        genamode (curi->smode, "srcreg", curi->size, "src", 2, 0);
        !          1110:        genflags (flag_logical, curi->size, "0", "", "");
        !          1111:        genastore ("0", curi->smode, "srcreg", curi->size, "src");
        !          1112:         if(curi->size==sz_long)
        !          1113:         {
        !          1114:           if(curi->smode==Dreg)
        !          1115:             insn_n_cycles += 2;
        !          1116:            else
        !          1117:             insn_n_cycles += 4;
        !          1118:         }
        !          1119:         if(curi->smode!=Dreg)
        !          1120:           insn_n_cycles += 4;
        !          1121:        break;
        !          1122:     case i_NOT:
        !          1123:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1124:        start_brace ();
        !          1125:        printf ("\tuae_u32 dst = ~src;\n");
        !          1126:        genflags (flag_logical, curi->size, "dst", "", "");
        !          1127:        genastore ("dst", curi->smode, "srcreg", curi->size, "src");
        !          1128:         if(curi->size==sz_long && curi->smode==Dreg)  insn_n_cycles += 2;
        !          1129:        break;
        !          1130:     case i_TST:
        !          1131:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1132:        genflags (flag_logical, curi->size, "src", "", "");
        !          1133:        break;
        !          1134:     case i_BTST:
        !          1135:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1136:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1137:        if (curi->size == sz_byte)
        !          1138:            printf ("\tsrc &= 7;\n");
        !          1139:        else
        !          1140:            printf ("\tsrc &= 31;\n");
        !          1141:        printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n");
        !          1142:         if(curi->dmode==Dreg)  insn_n_cycles += 2;
        !          1143:        break;
        !          1144:     case i_BCHG:
        !          1145:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1146:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1147:        if (curi->size == sz_byte)
        !          1148:            printf ("\tsrc &= 7;\n");
        !          1149:        else
        !          1150:            printf ("\tsrc &= 31;\n");
        !          1151:        printf ("\tdst ^= (1 << src);\n");
        !          1152:        printf ("\tSET_ZFLG (((uae_u32)dst & (1 << src)) >> src);\n");
        !          1153:        genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
        !          1154:         if(curi->dmode==Dreg)  insn_n_cycles += 4;
        !          1155:        break;
        !          1156:     case i_BCLR:
        !          1157:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1158:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1159:        if (curi->size == sz_byte)
        !          1160:            printf ("\tsrc &= 7;\n");
        !          1161:        else
        !          1162:            printf ("\tsrc &= 31;\n");
        !          1163:        printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n");
        !          1164:        printf ("\tdst &= ~(1 << src);\n");
        !          1165:        genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
        !          1166:         if(curi->dmode==Dreg)  insn_n_cycles += 6;
        !          1167:        break;
        !          1168:     case i_BSET:
        !          1169:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1170:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1171:        if (curi->size == sz_byte)
        !          1172:            printf ("\tsrc &= 7;\n");
        !          1173:        else
        !          1174:            printf ("\tsrc &= 31;\n");
        !          1175:        printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n");
        !          1176:        printf ("\tdst |= (1 << src);\n");
        !          1177:        genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
        !          1178:         if(curi->dmode==Dreg)  insn_n_cycles += 4;
        !          1179:        break;
        !          1180:     case i_CMPM:
        !          1181:     case i_CMP:
        !          1182:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1183:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1184:        start_brace ();
        !          1185:        genflags (flag_cmp, curi->size, "newv", "src", "dst");
        !          1186:         if(curi->size==sz_long && curi->dmode==Dreg)
        !          1187:           insn_n_cycles += 2;
        !          1188:        break;
        !          1189:     case i_CMPA:
        !          1190:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1191:        genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
        !          1192:        start_brace ();
        !          1193:        genflags (flag_cmp, sz_long, "newv", "src", "dst");
        !          1194:         insn_n_cycles += 2;
        !          1195:        break;
        !          1196:        /* The next two are coded a little unconventional, but they are doing
        !          1197:         * weird things... */
        !          1198:     case i_MVPRM:
        !          1199:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1200: 
        !          1201:        printf ("\tuaecptr memp = m68k_areg(regs, dstreg) + (uae_s32)(uae_s16)%s;\n", gen_nextiword ());
        !          1202:        if (curi->size == sz_word) {
        !          1203:            printf ("\tput_byte(memp, src >> 8); put_byte(memp + 2, src);\n");
        !          1204:        } else {
        !          1205:            printf ("\tput_byte(memp, src >> 24); put_byte(memp + 2, src >> 16);\n");
        !          1206:            printf ("\tput_byte(memp + 4, src >> 8); put_byte(memp + 6, src);\n");
        !          1207:        }
        !          1208:         if(curi->size==sz_long)  insn_n_cycles=24;  else  insn_n_cycles=16;
        !          1209:        break;
        !          1210:     case i_MVPMR:
        !          1211:        printf ("\tuaecptr memp = m68k_areg(regs, srcreg) + (uae_s32)(uae_s16)%s;\n", gen_nextiword ());
        !          1212:        genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
        !          1213:        if (curi->size == sz_word) {
        !          1214:            printf ("\tuae_u16 val = (get_byte(memp) << 8) + get_byte(memp + 2);\n");
        !          1215:        } else {
        !          1216:            printf ("\tuae_u32 val = (get_byte(memp) << 24) + (get_byte(memp + 2) << 16)\n");
        !          1217:            printf ("              + (get_byte(memp + 4) << 8) + get_byte(memp + 6);\n");
        !          1218:        }
        !          1219:        genastore ("val", curi->dmode, "dstreg", curi->size, "dst");
        !          1220:         if(curi->size==sz_long)  insn_n_cycles=24;  else  insn_n_cycles=16;
        !          1221:        break;
        !          1222:     case i_MOVE:
        !          1223:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1224:        genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
        !          1225:        genflags (flag_logical, curi->size, "src", "", "");
        !          1226:        genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
        !          1227:        break;
        !          1228:     case i_MOVEA:
        !          1229:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1230:        genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
        !          1231:        if (curi->size == sz_word) {
        !          1232:            printf ("\tuae_u32 val = (uae_s32)(uae_s16)src;\n");
        !          1233:        } else {
        !          1234:            printf ("\tuae_u32 val = src;\n");
        !          1235:        }
        !          1236:        genastore ("val", curi->dmode, "dstreg", sz_long, "dst");
        !          1237:        break;
        !          1238:     case i_MVSR2:  /* Move from SR */
        !          1239:        genamode (curi->smode, "srcreg", sz_word, "src", 2, 0);
        !          1240:        printf ("\tMakeSR();\n");
        !          1241:        if (curi->size == sz_byte)
        !          1242:            genastore ("regs.sr & 0xff", curi->smode, "srcreg", sz_word, "src");
        !          1243:        else
        !          1244:            genastore ("regs.sr", curi->smode, "srcreg", sz_word, "src");
        !          1245:         if (curi->smode==Dreg)  insn_n_cycles += 2;  else  insn_n_cycles += 4;
        !          1246:        break;
        !          1247:     case i_MV2SR:  /* Move to SR */
        !          1248:        genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
        !          1249:        if (curi->size == sz_byte)
        !          1250:            printf ("\tMakeSR();\n\tregs.sr &= 0xFF00;\n\tregs.sr |= src & 0xFF;\n");
        !          1251:        else {
        !          1252:            printf ("\tregs.sr = src;\n");
        !          1253:        }
        !          1254:        printf ("\tMakeFromSR();\n");
        !          1255:         insn_n_cycles += 8;
        !          1256:        break;
        !          1257:     case i_SWAP:
        !          1258:        genamode (curi->smode, "srcreg", sz_long, "src", 1, 0);
        !          1259:        start_brace ();
        !          1260:        printf ("\tuae_u32 dst = ((src >> 16)&0xFFFF) | ((src&0xFFFF)<<16);\n");
        !          1261:        genflags (flag_logical, sz_long, "dst", "", "");
        !          1262:        genastore ("dst", curi->smode, "srcreg", sz_long, "src");
        !          1263:        break;
        !          1264:     case i_EXG:
        !          1265:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1266:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1267:        genastore ("dst", curi->smode, "srcreg", curi->size, "src");
        !          1268:        genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
        !          1269:         insn_n_cycles = 6;
        !          1270:        break;
        !          1271:     case i_EXT:
        !          1272:        genamode (curi->smode, "srcreg", sz_long, "src", 1, 0);
        !          1273:        start_brace ();
        !          1274:        switch (curi->size) {
        !          1275:        case sz_byte: printf ("\tuae_u32 dst = (uae_s32)(uae_s8)src;\n"); break;
        !          1276:        case sz_word: printf ("\tuae_u16 dst = (uae_s16)(uae_s8)src;\n"); break;
        !          1277:        case sz_long: printf ("\tuae_u32 dst = (uae_s32)(uae_s16)src;\n"); break;
        !          1278:        default: abort ();
        !          1279:        }
        !          1280:        genflags (flag_logical,
        !          1281:                  curi->size == sz_word ? sz_word : sz_long, "dst", "", "");
        !          1282:        genastore ("dst", curi->smode, "srcreg",
        !          1283:                   curi->size == sz_word ? sz_word : sz_long, "src");
        !          1284:        break;
        !          1285:     case i_MVMEL:
        !          1286:        genmovemel (opcode);
        !          1287:        break;
        !          1288:     case i_MVMLE:
        !          1289:        genmovemle (opcode);
        !          1290:        break;
        !          1291:     case i_TRAP:
        !          1292:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1293:        sync_m68k_pc ();
        !          1294:        printf ("\tException(src+32,0);\n");
        !          1295:        m68k_pc_offset = 0;
        !          1296:        break;
        !          1297:     case i_MVR2USP:
        !          1298:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1299:        printf ("\tregs.usp = src;\n");
        !          1300:        break;
        !          1301:     case i_MVUSP2R:
        !          1302:        genamode (curi->smode, "srcreg", curi->size, "src", 2, 0);
        !          1303:        genastore ("regs.usp", curi->smode, "srcreg", curi->size, "src");
        !          1304:        break;
        !          1305:     case i_RESET:
        !          1306:        printf ("\tcustomreset();\n");
        !          1307:         insn_n_cycles = 132;    /* I am not so sure about this!? - Thothy */
        !          1308:        break;
        !          1309:     case i_NOP:
        !          1310:        break;
        !          1311:     case i_STOP:
        !          1312:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1313:        printf ("\tregs.sr = src;\n");
        !          1314:        printf ("\tMakeFromSR();\n");
        !          1315:        printf ("\tm68k_setstopped(1);\n");
        !          1316:         insn_n_cycles = 4;
        !          1317:        break;
        !          1318:     case i_RTE:
        !          1319:        if (cpu_level == 0) {
        !          1320:            genamode (Aipi, "7", sz_word, "sr", 1, 0);
        !          1321:            genamode (Aipi, "7", sz_long, "pc", 1, 0);
        !          1322:            printf ("\tregs.sr = sr; m68k_setpc_rte(pc);\n");
        !          1323:            fill_prefetch_0 ();
        !          1324:            printf ("\tMakeFromSR();\n");
        !          1325:        } else {
        !          1326:            int old_brace_level = n_braces;
        !          1327:            if (next_cpu_level < 0)
        !          1328:                next_cpu_level = 0;
        !          1329:            printf ("\tuae_u16 newsr; uae_u32 newpc; for (;;) {\n");
        !          1330:            genamode (Aipi, "7", sz_word, "sr", 1, 0);
        !          1331:            genamode (Aipi, "7", sz_long, "pc", 1, 0);
        !          1332:            genamode (Aipi, "7", sz_word, "format", 1, 0);
        !          1333:            printf ("\tnewsr = sr; newpc = pc;\n");
        !          1334:            printf ("\tif ((format & 0xF000) == 0x0000) { break; }\n");
        !          1335:            printf ("\telse if ((format & 0xF000) == 0x1000) { ; }\n");
        !          1336:            printf ("\telse if ((format & 0xF000) == 0x2000) { m68k_areg(regs, 7) += 4; break; }\n");
        !          1337:            printf ("\telse if ((format & 0xF000) == 0x8000) { m68k_areg(regs, 7) += 50; break; }\n");
        !          1338:            printf ("\telse if ((format & 0xF000) == 0x9000) { m68k_areg(regs, 7) += 12; break; }\n");
        !          1339:            printf ("\telse if ((format & 0xF000) == 0xa000) { m68k_areg(regs, 7) += 24; break; }\n");
        !          1340:            printf ("\telse if ((format & 0xF000) == 0xb000) { m68k_areg(regs, 7) += 84; break; }\n");
        !          1341:            printf ("\telse { Exception(14,0); goto %s; }\n", endlabelstr);
        !          1342:            printf ("\tregs.sr = newsr; MakeFromSR();\n}\n");
        !          1343:            pop_braces (old_brace_level);
        !          1344:            printf ("\tregs.sr = newsr; MakeFromSR();\n");
        !          1345:            printf ("\tm68k_setpc_rte(newpc);\n");
        !          1346:            fill_prefetch_0 ();
        !          1347:            need_endlabel = 1;
        !          1348:        }
        !          1349:        /* PC is set and prefetch filled. */
        !          1350:        m68k_pc_offset = 0;
        !          1351:         insn_n_cycles = 20;
        !          1352:        break;
        !          1353:     case i_RTD:
        !          1354:        genamode (Aipi, "7", sz_long, "pc", 1, 0);
        !          1355:        genamode (curi->smode, "srcreg", curi->size, "offs", 1, 0);
        !          1356:        printf ("\tm68k_areg(regs, 7) += offs;\n");
        !          1357:        printf ("\tm68k_setpc_rte(pc);\n");
        !          1358:        fill_prefetch_0 ();
        !          1359:        /* PC is set and prefetch filled. */
        !          1360:        m68k_pc_offset = 0;
        !          1361:        break;
        !          1362:     case i_LINK:
        !          1363:        genamode (Apdi, "7", sz_long, "old", 2, 0);
        !          1364:        genamode (curi->smode, "srcreg", sz_long, "src", 1, 0);
        !          1365:        genastore ("src", Apdi, "7", sz_long, "old");
        !          1366:        genastore ("m68k_areg(regs, 7)", curi->smode, "srcreg", sz_long, "src");
        !          1367:        genamode (curi->dmode, "dstreg", curi->size, "offs", 1, 0);
        !          1368:        printf ("\tm68k_areg(regs, 7) += offs;\n");
        !          1369:        break;
        !          1370:     case i_UNLK:
        !          1371:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1372:        printf ("\tm68k_areg(regs, 7) = src;\n");
        !          1373:        genamode (Aipi, "7", sz_long, "old", 1, 0);
        !          1374:        genastore ("old", curi->smode, "srcreg", curi->size, "src");
        !          1375:        break;
        !          1376:     case i_RTS:
        !          1377:        printf ("\tm68k_do_rts();\n");
        !          1378:        fill_prefetch_0 ();
        !          1379:        m68k_pc_offset = 0;
        !          1380:         insn_n_cycles = 16;
        !          1381:        break;
        !          1382:     case i_TRAPV:
        !          1383:        sync_m68k_pc ();
        !          1384:        printf ("\tif (GET_VFLG) { Exception(7,m68k_getpc()); goto %s; }\n", endlabelstr);
        !          1385:        need_endlabel = 1;
        !          1386:        break;
        !          1387:     case i_RTR:
        !          1388:        printf ("\tMakeSR();\n");
        !          1389:        genamode (Aipi, "7", sz_word, "sr", 1, 0);
        !          1390:        genamode (Aipi, "7", sz_long, "pc", 1, 0);
        !          1391:        printf ("\tregs.sr &= 0xFF00; sr &= 0xFF;\n");
        !          1392:        printf ("\tregs.sr |= sr; m68k_setpc(pc);\n");
        !          1393:        fill_prefetch_0 ();
        !          1394:        printf ("\tMakeFromSR();\n");
        !          1395:        m68k_pc_offset = 0;
        !          1396:         insn_n_cycles = 20;
        !          1397:        break;
        !          1398:     case i_JSR:
        !          1399:        genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
        !          1400:        printf ("\tm68k_do_jsr(m68k_getpc() + %d, srca);\n", m68k_pc_offset);
        !          1401:        fill_prefetch_0 ();
        !          1402:        m68k_pc_offset = 0;
        !          1403:         switch(curi->smode)
        !          1404:          {
        !          1405:           case Aind:  insn_n_cycles=16; break;
        !          1406:           case Ad16:  insn_n_cycles=18; break;
        !          1407:           case Ad8r:  insn_n_cycles=22; break;
        !          1408:           case absw:  insn_n_cycles=18; break;
        !          1409:           case absl:  insn_n_cycles=20; break;
        !          1410:           case PC16:  insn_n_cycles=18; break;
        !          1411:           case PC8r:  insn_n_cycles=22; break;
        !          1412:          }
        !          1413:        break;
        !          1414:     case i_JMP:
        !          1415:        genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
        !          1416:        printf ("\tm68k_setpc(srca);\n");
        !          1417:        fill_prefetch_0 ();
        !          1418:        m68k_pc_offset = 0;
        !          1419:         switch(curi->smode)
        !          1420:          {
        !          1421:           case Aind:  insn_n_cycles=8; break;
        !          1422:           case Ad16:  insn_n_cycles=10; break;
        !          1423:           case Ad8r:  insn_n_cycles=14; break;
        !          1424:           case absw:  insn_n_cycles=10; break;
        !          1425:           case absl:  insn_n_cycles=12; break;
        !          1426:           case PC16:  insn_n_cycles=10; break;
        !          1427:           case PC8r:  insn_n_cycles=14; break;
        !          1428:          }
        !          1429:        break;
        !          1430:     case i_BSR:
        !          1431:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1432:        printf ("\tuae_s32 s = (uae_s32)src + 2;\n");
        !          1433:        if (using_exception_3) {
        !          1434:            printf ("\tif (src & 1) {\n");
        !          1435:            printf ("\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
        !          1436:            printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + s;\n");
        !          1437:            printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
        !          1438:            printf ("\t}\n");
        !          1439:            need_endlabel = 1;
        !          1440:        }
        !          1441:        printf ("\tm68k_do_bsr(m68k_getpc() + %d, s);\n", m68k_pc_offset);
        !          1442:        fill_prefetch_0 ();
        !          1443:        m68k_pc_offset = 0;
        !          1444:         insn_n_cycles = 18;
        !          1445:        break;
        !          1446:     case i_Bcc:
        !          1447:        if (curi->size == sz_long) {
        !          1448:            if (cpu_level < 2) {
        !          1449:                printf ("\tm68k_incpc(2);\n");
        !          1450:                printf ("\tif (!cctrue(%d)) goto %s;\n", curi->cc, endlabelstr);
        !          1451:                printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
        !          1452:                printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + 1;\n");
        !          1453:                printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
        !          1454:                need_endlabel = 1;
        !          1455:            } else {
        !          1456:                if (next_cpu_level < 1)
        !          1457:                    next_cpu_level = 1;
        !          1458:            }
        !          1459:        }
        !          1460:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1461:        printf ("\tif (!cctrue(%d)) goto didnt_jump;\n", curi->cc);
        !          1462:        if (using_exception_3) {
        !          1463:            printf ("\tif (src & 1) {\n");
        !          1464:            printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
        !          1465:            printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + 2 + (uae_s32)src;\n");
        !          1466:            printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
        !          1467:            printf ("\t}\n");
        !          1468:            need_endlabel = 1;
        !          1469:        }
        !          1470:        printf ("\tm68k_incpc ((uae_s32)src + 2);\n");
        !          1471:        fill_prefetch_0 ();
        !          1472:        printf ("\treturn 10;\n");
        !          1473:        printf ("didnt_jump:;\n");
        !          1474:        need_endlabel = 1;
        !          1475:        insn_n_cycles = (curi->size == sz_byte) ? 8 : 12;
        !          1476:        break;
        !          1477:     case i_LEA:
        !          1478:        genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
        !          1479:        genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
        !          1480:        genastore ("srca", curi->dmode, "dstreg", curi->size, "dst");
        !          1481:         if(curi->smode==Ad8r || curi->smode==PC8r)
        !          1482:           insn_n_cycles += 2;
        !          1483:        break;
        !          1484:     case i_PEA:
        !          1485:        genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
        !          1486:        genamode (Apdi, "7", sz_long, "dst", 2, 0);
        !          1487:        genastore ("srca", Apdi, "7", sz_long, "dst");
        !          1488:         switch(curi->smode)
        !          1489:          {
        !          1490:           case Aind:  insn_n_cycles=12; break;
        !          1491:           case Ad16:  insn_n_cycles=16; break;
        !          1492:           case Ad8r:  insn_n_cycles=20; break;
        !          1493:           case absw:  insn_n_cycles=16; break;
        !          1494:           case absl:  insn_n_cycles=20; break;
        !          1495:           case PC16:  insn_n_cycles=16; break;
        !          1496:           case PC8r:  insn_n_cycles=20; break;
        !          1497:          }
        !          1498:        break;
        !          1499:     case i_DBcc:
        !          1500:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1501:        genamode (curi->dmode, "dstreg", curi->size, "offs", 1, 0);
        !          1502: 
        !          1503:        printf ("\tif (!cctrue(%d)) {\n\t", curi->cc);
        !          1504:        genastore ("(src-1)", curi->smode, "srcreg", curi->size, "src");
        !          1505: 
        !          1506:        printf ("\t\tif (src) {\n");
        !          1507:        if (using_exception_3) {
        !          1508:            printf ("\t\t\tif (offs & 1) {\n");
        !          1509:            printf ("\t\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
        !          1510:            printf ("\t\t\tlast_fault_for_exception_3 = m68k_getpc() + 2 + (uae_s32)offs + 2;\n");
        !          1511:            printf ("\t\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
        !          1512:            printf ("\t\t}\n");
        !          1513:            need_endlabel = 1;
        !          1514:        }
        !          1515:        printf ("\t\t\tm68k_incpc((uae_s32)offs + 2);\n");
        !          1516:        fill_prefetch_0 ();
        !          1517:        printf ("\t\t\treturn 10;\n");
        !          1518:        printf ("\t\t} else {\n\t\t\t");
        !          1519:         {
        !          1520:          int tmp_offset = m68k_pc_offset;
        !          1521:          sync_m68k_pc();              /* not so nice to call it here... */
        !          1522:          m68k_pc_offset = tmp_offset;
        !          1523:         }
        !          1524:         printf ("\t\t\treturn 14;\n");
        !          1525:         printf ("\t\t}\n");
        !          1526:        printf ("\t}\n");
        !          1527:        insn_n_cycles = 12;
        !          1528:        need_endlabel = 1;
        !          1529:        break;
        !          1530:     case i_Scc:
        !          1531:        genamode (curi->smode, "srcreg", curi->size, "src", 2, 0);
        !          1532:        start_brace ();
        !          1533:        printf ("\tint val = cctrue(%d) ? 0xff : 0;\n", curi->cc);
        !          1534:        genastore ("val", curi->smode, "srcreg", curi->size, "src");
        !          1535:         if(curi->smode!=Dreg)  insn_n_cycles += 4;
        !          1536:        break;
        !          1537:     case i_DIVU:
        !          1538:        printf ("\tuaecptr oldpc = m68k_getpc();\n");
        !          1539:        genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
        !          1540:        genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
        !          1541:        sync_m68k_pc ();
        !          1542:        /* Clear V flag when dividing by zero - Alcatraz Odyssey demo depends
        !          1543:         * on this (actually, it's doing a DIVS).  */
        !          1544:        printf ("\tif (src == 0) { SET_VFLG (0); Exception (5, oldpc); goto %s; } else {\n", endlabelstr);
        !          1545:        printf ("\tuae_u32 newv = (uae_u32)dst / (uae_u32)(uae_u16)src;\n");
        !          1546:        printf ("\tuae_u32 rem = (uae_u32)dst %% (uae_u32)(uae_u16)src;\n");
        !          1547:        /* The N flag appears to be set each time there is an overflow.
        !          1548:         * Weird. */
        !          1549:        printf ("\tif (newv > 0xffff) { SET_VFLG (1); SET_NFLG (1); SET_CFLG (0); } else\n\t{\n");
        !          1550:        genflags (flag_logical, sz_word, "newv", "", "");
        !          1551:        printf ("\tnewv = (newv & 0xffff) | ((uae_u32)rem << 16);\n");
        !          1552:        genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
        !          1553:        printf ("\t}\n");
        !          1554:        printf ("\t}\n");
        !          1555:        insn_n_cycles += 136;
        !          1556:        need_endlabel = 1;
        !          1557:        break;
        !          1558:     case i_DIVS:
        !          1559:        printf ("\tuaecptr oldpc = m68k_getpc();\n");
        !          1560:        genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
        !          1561:        genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
        !          1562:        sync_m68k_pc ();
        !          1563:        printf ("\tif (src == 0) { SET_VFLG (0); Exception(5,oldpc); goto %s; } else {\n", endlabelstr);
        !          1564:        printf ("\tuae_s32 newv = (uae_s32)dst / (uae_s32)(uae_s16)src;\n");
        !          1565:        printf ("\tuae_u16 rem = (uae_s32)dst %% (uae_s32)(uae_s16)src;\n");
        !          1566:        printf ("\tif ((newv & 0xffff8000) != 0 && (newv & 0xffff8000) != 0xffff8000) { SET_VFLG (1); SET_NFLG (1); SET_CFLG (0); } else\n\t{\n");
        !          1567:        printf ("\tif (((uae_s16)rem < 0) != ((uae_s32)dst < 0)) rem = -rem;\n");
        !          1568:        genflags (flag_logical, sz_word, "newv", "", "");
        !          1569:        printf ("\tnewv = (newv & 0xffff) | ((uae_u32)rem << 16);\n");
        !          1570:        genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
        !          1571:        printf ("\t}\n");
        !          1572:        printf ("\t}\n");
        !          1573:        insn_n_cycles += 154;
        !          1574:        need_endlabel = 1;
        !          1575:        break;
        !          1576:     case i_MULU:
        !          1577:        genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
        !          1578:        genamode (curi->dmode, "dstreg", sz_word, "dst", 1, 0);
        !          1579:        start_brace ();
        !          1580:        printf ("\tuae_u32 newv = (uae_u32)(uae_u16)dst * (uae_u32)(uae_u16)src;\n");
        !          1581:        genflags (flag_logical, sz_long, "newv", "", "");
        !          1582:        genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
        !          1583:        insn_n_cycles += 66;
        !          1584:        break;
        !          1585:     case i_MULS:
        !          1586:        genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
        !          1587:        genamode (curi->dmode, "dstreg", sz_word, "dst", 1, 0);
        !          1588:        start_brace ();
        !          1589:        printf ("\tuae_u32 newv = (uae_s32)(uae_s16)dst * (uae_s32)(uae_s16)src;\n");
        !          1590:        genflags (flag_logical, sz_long, "newv", "", "");
        !          1591:        genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
        !          1592:        insn_n_cycles += 66;
        !          1593:        break;
        !          1594:     case i_CHK:
        !          1595:        printf ("\tuaecptr oldpc = m68k_getpc();\n");
        !          1596:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1597:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1598:        printf ("\tif ((uae_s32)dst < 0) { SET_NFLG (1); Exception(6,oldpc); goto %s; }\n", endlabelstr);
        !          1599:        printf ("\telse if (dst > src) { SET_NFLG (0); Exception(6,oldpc); goto %s; }\n", endlabelstr);
        !          1600:        need_endlabel = 1;
        !          1601:         insn_n_cycles += 6;
        !          1602:        break;
        !          1603: 
        !          1604:     case i_CHK2:
        !          1605:        printf ("\tuaecptr oldpc = m68k_getpc();\n");
        !          1606:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          1607:        genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
        !          1608:        printf ("\t{uae_s32 upper,lower,reg = regs.regs[(extra >> 12) & 15];\n");
        !          1609:        switch (curi->size) {
        !          1610:        case sz_byte:
        !          1611:            printf ("\tlower=(uae_s32)(uae_s8)get_byte(dsta); upper = (uae_s32)(uae_s8)get_byte(dsta+1);\n");
        !          1612:            printf ("\tif ((extra & 0x8000) == 0) reg = (uae_s32)(uae_s8)reg;\n");
        !          1613:            break;
        !          1614:        case sz_word:
        !          1615:            printf ("\tlower=(uae_s32)(uae_s16)get_word(dsta); upper = (uae_s32)(uae_s16)get_word(dsta+2);\n");
        !          1616:            printf ("\tif ((extra & 0x8000) == 0) reg = (uae_s32)(uae_s16)reg;\n");
        !          1617:            break;
        !          1618:        case sz_long:
        !          1619:            printf ("\tlower=get_long(dsta); upper = get_long(dsta+4);\n");
        !          1620:            break;
        !          1621:        default:
        !          1622:            abort ();
        !          1623:        }
        !          1624:        printf ("\tSET_ZFLG (upper == reg || lower == reg);\n");
        !          1625:        printf ("\tSET_CFLG (lower <= upper ? reg < lower || reg > upper : reg > upper || reg < lower);\n");
        !          1626:        printf ("\tif ((extra & 0x800) && GET_CFLG) { Exception(6,oldpc); goto %s; }\n}\n", endlabelstr);
        !          1627:        need_endlabel = 1;
        !          1628:        break;
        !          1629: 
        !          1630:     case i_ASR:
        !          1631:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1632:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1633:        start_brace ();
        !          1634:        switch (curi->size) {
        !          1635:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1636:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1637:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1638:        default: abort ();
        !          1639:        }
        !          1640:        printf ("\tuae_u32 sign = (%s & val) >> %d;\n", cmask (curi->size), bit_size (curi->size) - 1);
        !          1641:        printf ("\tcnt &= 63;\n");
        !          1642:         printf ("\tretcycles = cnt;\n");
        !          1643:        printf ("\tCLEAR_CZNV;\n");
        !          1644:        printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
        !          1645:        printf ("\t\tval = %s & (uae_u32)-sign;\n", bit_mask (curi->size));
        !          1646:        printf ("\t\tSET_CFLG (sign);\n");
        !          1647:        duplicate_carry ();
        !          1648:        if (source_is_imm1_8 (curi))
        !          1649:            printf ("\t} else {\n");
        !          1650:        else
        !          1651:            printf ("\t} else if (cnt > 0) {\n");
        !          1652:        printf ("\t\tval >>= cnt - 1;\n");
        !          1653:        printf ("\t\tSET_CFLG (val & 1);\n");
        !          1654:        duplicate_carry ();
        !          1655:        printf ("\t\tval >>= 1;\n");
        !          1656:        printf ("\t\tval |= (%s << (%d - cnt)) & (uae_u32)-sign;\n",
        !          1657:                bit_mask (curi->size),
        !          1658:                bit_size (curi->size));
        !          1659:        printf ("\t\tval &= %s;\n", bit_mask (curi->size));
        !          1660:        printf ("\t}\n");
        !          1661:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1662:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1663:         if(curi->size==sz_long)
        !          1664:             strcpy(exactCpuCycles," return (8+retcycles*2);");
        !          1665:           else
        !          1666:             strcpy(exactCpuCycles," return (6+retcycles*2);");
        !          1667:        break;
        !          1668:     case i_ASL:
        !          1669:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1670:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1671:        start_brace ();
        !          1672:        switch (curi->size) {
        !          1673:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1674:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1675:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1676:        default: abort ();
        !          1677:        }
        !          1678:        printf ("\tcnt &= 63;\n");
        !          1679:         printf ("\tretcycles = cnt;\n");
        !          1680:        printf ("\tCLEAR_CZNV;\n");
        !          1681:        printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
        !          1682:        printf ("\t\tSET_VFLG (val != 0);\n");
        !          1683:        printf ("\t\tSET_CFLG (cnt == %d ? val & 1 : 0);\n",
        !          1684:                bit_size (curi->size));
        !          1685:        duplicate_carry ();
        !          1686:        printf ("\t\tval = 0;\n");
        !          1687:        if (source_is_imm1_8 (curi))
        !          1688:            printf ("\t} else {\n");
        !          1689:        else
        !          1690:            printf ("\t} else if (cnt > 0) {\n");
        !          1691:        printf ("\t\tuae_u32 mask = (%s << (%d - cnt)) & %s;\n",
        !          1692:                bit_mask (curi->size),
        !          1693:                bit_size (curi->size) - 1,
        !          1694:                bit_mask (curi->size));
        !          1695:        printf ("\t\tSET_VFLG ((val & mask) != mask && (val & mask) != 0);\n");
        !          1696:        printf ("\t\tval <<= cnt - 1;\n");
        !          1697:        printf ("\t\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1);
        !          1698:        duplicate_carry ();
        !          1699:        printf ("\t\tval <<= 1;\n");
        !          1700:        printf ("\t\tval &= %s;\n", bit_mask (curi->size));
        !          1701:        printf ("\t}\n");
        !          1702:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1703:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1704:         if(curi->size==sz_long)
        !          1705:             strcpy(exactCpuCycles," return (8+retcycles*2);");
        !          1706:           else
        !          1707:             strcpy(exactCpuCycles," return (6+retcycles*2);");
        !          1708:        break;
        !          1709:     case i_LSR:
        !          1710:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1711:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1712:        start_brace ();
        !          1713:        switch (curi->size) {
        !          1714:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1715:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1716:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1717:        default: abort ();
        !          1718:        }
        !          1719:        printf ("\tcnt &= 63;\n");
        !          1720:         printf ("\tretcycles = cnt;\n");
        !          1721:        printf ("\tCLEAR_CZNV;\n");
        !          1722:        printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
        !          1723:        printf ("\t\tSET_CFLG ((cnt == %d) & (val >> %d));\n",
        !          1724:                bit_size (curi->size), bit_size (curi->size) - 1);
        !          1725:        duplicate_carry ();
        !          1726:        printf ("\t\tval = 0;\n");
        !          1727:        if (source_is_imm1_8 (curi))
        !          1728:            printf ("\t} else {\n");
        !          1729:        else
        !          1730:            printf ("\t} else if (cnt > 0) {\n");
        !          1731:        printf ("\t\tval >>= cnt - 1;\n");
        !          1732:        printf ("\t\tSET_CFLG (val & 1);\n");
        !          1733:        duplicate_carry ();
        !          1734:        printf ("\t\tval >>= 1;\n");
        !          1735:        printf ("\t}\n");
        !          1736:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1737:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1738:         if(curi->size==sz_long)
        !          1739:             strcpy(exactCpuCycles," return (8+retcycles*2);");
        !          1740:           else
        !          1741:             strcpy(exactCpuCycles," return (6+retcycles*2);");
        !          1742:        break;
        !          1743:     case i_LSL:
        !          1744:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1745:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1746:        start_brace ();
        !          1747:        switch (curi->size) {
        !          1748:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1749:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1750:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1751:        default: abort ();
        !          1752:        }
        !          1753:        printf ("\tcnt &= 63;\n");
        !          1754:         printf ("\tretcycles = cnt;\n");
        !          1755:        printf ("\tCLEAR_CZNV;\n");
        !          1756:        printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
        !          1757:        printf ("\t\tSET_CFLG (cnt == %d ? val & 1 : 0);\n",
        !          1758:                bit_size (curi->size));
        !          1759:        duplicate_carry ();
        !          1760:        printf ("\t\tval = 0;\n");
        !          1761:        if (source_is_imm1_8 (curi))
        !          1762:            printf ("\t} else {\n");
        !          1763:        else
        !          1764:            printf ("\t} else if (cnt > 0) {\n");
        !          1765:        printf ("\t\tval <<= (cnt - 1);\n");
        !          1766:        printf ("\t\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1);
        !          1767:        duplicate_carry ();
        !          1768:        printf ("\t\tval <<= 1;\n");
        !          1769:        printf ("\tval &= %s;\n", bit_mask (curi->size));
        !          1770:        printf ("\t}\n");
        !          1771:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1772:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1773:         if(curi->size==sz_long)
        !          1774:             strcpy(exactCpuCycles," return (8+retcycles*2);");
        !          1775:           else
        !          1776:             strcpy(exactCpuCycles," return (6+retcycles*2);");
        !          1777:        break;
        !          1778:     case i_ROL:
        !          1779:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1780:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1781:        start_brace ();
        !          1782:        switch (curi->size) {
        !          1783:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1784:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1785:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1786:        default: abort ();
        !          1787:        }
        !          1788:        printf ("\tcnt &= 63;\n");
        !          1789:         printf ("\tretcycles = cnt;\n");
        !          1790:        printf ("\tCLEAR_CZNV;\n");
        !          1791:        if (source_is_imm1_8 (curi))
        !          1792:            printf ("{");
        !          1793:        else
        !          1794:            printf ("\tif (cnt > 0) {\n");
        !          1795:        printf ("\tuae_u32 loval;\n");
        !          1796:        printf ("\tcnt &= %d;\n", bit_size (curi->size) - 1);
        !          1797:        printf ("\tloval = val >> (%d - cnt);\n", bit_size (curi->size));
        !          1798:        printf ("\tval <<= cnt;\n");
        !          1799:        printf ("\tval |= loval;\n");
        !          1800:        printf ("\tval &= %s;\n", bit_mask (curi->size));
        !          1801:        printf ("\tSET_CFLG (val & 1);\n");
        !          1802:        printf ("}\n");
        !          1803:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1804:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1805:         if(curi->size==sz_long)
        !          1806:             strcpy(exactCpuCycles," return (8+retcycles*2);");
        !          1807:           else
        !          1808:             strcpy(exactCpuCycles," return (6+retcycles*2);");
        !          1809:        break;
        !          1810:     case i_ROR:
        !          1811:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1812:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1813:        start_brace ();
        !          1814:        switch (curi->size) {
        !          1815:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1816:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1817:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1818:        default: abort ();
        !          1819:        }
        !          1820:        printf ("\tcnt &= 63;\n");
        !          1821:         printf ("\tretcycles = cnt;\n");
        !          1822:        printf ("\tCLEAR_CZNV;\n");
        !          1823:        if (source_is_imm1_8 (curi))
        !          1824:            printf ("{");
        !          1825:        else
        !          1826:            printf ("\tif (cnt > 0) {");
        !          1827:        printf ("\tuae_u32 hival;\n");
        !          1828:        printf ("\tcnt &= %d;\n", bit_size (curi->size) - 1);
        !          1829:        printf ("\thival = val << (%d - cnt);\n", bit_size (curi->size));
        !          1830:        printf ("\tval >>= cnt;\n");
        !          1831:        printf ("\tval |= hival;\n");
        !          1832:        printf ("\tval &= %s;\n", bit_mask (curi->size));
        !          1833:        printf ("\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1);
        !          1834:        printf ("\t}\n");
        !          1835:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1836:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1837:         if(curi->size==sz_long)
        !          1838:             strcpy(exactCpuCycles," return (8+retcycles*2);");
        !          1839:           else
        !          1840:             strcpy(exactCpuCycles," return (6+retcycles*2);");
        !          1841:        break;
        !          1842:     case i_ROXL:
        !          1843:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1844:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1845:        start_brace ();
        !          1846:        switch (curi->size) {
        !          1847:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1848:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1849:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1850:        default: abort ();
        !          1851:        }
        !          1852:        printf ("\tcnt &= 63;\n");
        !          1853:         printf ("\tretcycles = cnt;\n");
        !          1854:        printf ("\tCLEAR_CZNV;\n");
        !          1855:        if (source_is_imm1_8 (curi))
        !          1856:            printf ("{");
        !          1857:        else {
        !          1858:            force_range_for_rox ("cnt", curi->size);
        !          1859:            printf ("\tif (cnt > 0) {\n");
        !          1860:        }
        !          1861:        printf ("\tcnt--;\n");
        !          1862:        printf ("\t{\n\tuae_u32 carry;\n");
        !          1863:        printf ("\tuae_u32 loval = val >> (%d - cnt);\n", bit_size (curi->size) - 1);
        !          1864:        printf ("\tcarry = loval & 1;\n");
        !          1865:        printf ("\tval = (((val << 1) | GET_XFLG) << cnt) | (loval >> 1);\n");
        !          1866:        printf ("\tSET_XFLG (carry);\n");
        !          1867:        printf ("\tval &= %s;\n", bit_mask (curi->size));
        !          1868:        printf ("\t} }\n");
        !          1869:        printf ("\tSET_CFLG (GET_XFLG);\n");
        !          1870:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1871:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1872:         if(curi->size==sz_long)
        !          1873:             strcpy(exactCpuCycles," return (8+retcycles*2);");
        !          1874:           else
        !          1875:             strcpy(exactCpuCycles," return (6+retcycles*2);");
        !          1876:        break;
        !          1877:     case i_ROXR:
        !          1878:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1879:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1880:        start_brace ();
        !          1881:        switch (curi->size) {
        !          1882:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1883:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1884:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1885:        default: abort ();
        !          1886:        }
        !          1887:        printf ("\tcnt &= 63;\n");
        !          1888:         printf ("\tretcycles = cnt;\n");
        !          1889:        printf ("\tCLEAR_CZNV;\n");
        !          1890:        if (source_is_imm1_8 (curi))
        !          1891:            printf ("{");
        !          1892:        else {
        !          1893:            force_range_for_rox ("cnt", curi->size);
        !          1894:            printf ("\tif (cnt > 0) {\n");
        !          1895:        }
        !          1896:        printf ("\tcnt--;\n");
        !          1897:        printf ("\t{\n\tuae_u32 carry;\n");
        !          1898:        printf ("\tuae_u32 hival = (val << 1) | GET_XFLG;\n");
        !          1899:        printf ("\thival <<= (%d - cnt);\n", bit_size (curi->size) - 1);
        !          1900:        printf ("\tval >>= cnt;\n");
        !          1901:        printf ("\tcarry = val & 1;\n");
        !          1902:        printf ("\tval >>= 1;\n");
        !          1903:        printf ("\tval |= hival;\n");
        !          1904:        printf ("\tSET_XFLG (carry);\n");
        !          1905:        printf ("\tval &= %s;\n", bit_mask (curi->size));
        !          1906:        printf ("\t} }\n");
        !          1907:        printf ("\tSET_CFLG (GET_XFLG);\n");
        !          1908:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1909:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1910:         if(curi->size==sz_long)
        !          1911:             strcpy(exactCpuCycles," return (8+retcycles*2);");
        !          1912:           else
        !          1913:             strcpy(exactCpuCycles," return (6+retcycles*2);");
        !          1914:        break;
        !          1915:     case i_ASRW:
        !          1916:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1917:        start_brace ();
        !          1918:        switch (curi->size) {
        !          1919:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1920:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1921:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1922:        default: abort ();
        !          1923:        }
        !          1924:        printf ("\tuae_u32 sign = %s & val;\n", cmask (curi->size));
        !          1925:        printf ("\tuae_u32 cflg = val & 1;\n");
        !          1926:        printf ("\tval = (val >> 1) | sign;\n");
        !          1927:        genflags (flag_logical, curi->size, "val", "", "");
        !          1928:        printf ("\tSET_CFLG (cflg);\n");
        !          1929:        duplicate_carry ();
        !          1930:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1931:        break;
        !          1932:     case i_ASLW:
        !          1933:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1934:        start_brace ();
        !          1935:        switch (curi->size) {
        !          1936:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1937:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1938:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1939:        default: abort ();
        !          1940:        }
        !          1941:        printf ("\tuae_u32 sign = %s & val;\n", cmask (curi->size));
        !          1942:        printf ("\tuae_u32 sign2;\n");
        !          1943:        printf ("\tval <<= 1;\n");
        !          1944:        genflags (flag_logical, curi->size, "val", "", "");
        !          1945:        printf ("\tsign2 = %s & val;\n", cmask (curi->size));
        !          1946:        printf ("\tSET_CFLG (sign != 0);\n");
        !          1947:        duplicate_carry ();
        !          1948: 
        !          1949:        printf ("\tSET_VFLG (GET_VFLG | (sign2 != sign));\n");
        !          1950:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1951:        break;
        !          1952:     case i_LSRW:
        !          1953:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1954:        start_brace ();
        !          1955:        switch (curi->size) {
        !          1956:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1957:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1958:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1959:        default: abort ();
        !          1960:        }
        !          1961:        printf ("\tuae_u32 carry = val & 1;\n");
        !          1962:        printf ("\tval >>= 1;\n");
        !          1963:        genflags (flag_logical, curi->size, "val", "", "");
        !          1964:        printf ("SET_CFLG (carry);\n");
        !          1965:        duplicate_carry ();
        !          1966:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1967:        break;
        !          1968:     case i_LSLW:
        !          1969:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1970:        start_brace ();
        !          1971:        switch (curi->size) {
        !          1972:        case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
        !          1973:        case sz_word: printf ("\tuae_u16 val = data;\n"); break;
        !          1974:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1975:        default: abort ();
        !          1976:        }
        !          1977:        printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size));
        !          1978:        printf ("\tval <<= 1;\n");
        !          1979:        genflags (flag_logical, curi->size, "val", "", "");
        !          1980:        printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1);
        !          1981:        duplicate_carry ();
        !          1982:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1983:        break;
        !          1984:     case i_ROLW:
        !          1985:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1986:        start_brace ();
        !          1987:        switch (curi->size) {
        !          1988:        case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
        !          1989:        case sz_word: printf ("\tuae_u16 val = data;\n"); break;
        !          1990:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1991:        default: abort ();
        !          1992:        }
        !          1993:        printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size));
        !          1994:        printf ("\tval <<= 1;\n");
        !          1995:        printf ("\tif (carry)  val |= 1;\n");
        !          1996:        genflags (flag_logical, curi->size, "val", "", "");
        !          1997:        printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1);
        !          1998:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1999:        break;
        !          2000:     case i_RORW:
        !          2001:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          2002:        start_brace ();
        !          2003:        switch (curi->size) {
        !          2004:        case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
        !          2005:        case sz_word: printf ("\tuae_u16 val = data;\n"); break;
        !          2006:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          2007:        default: abort ();
        !          2008:        }
        !          2009:        printf ("\tuae_u32 carry = val & 1;\n");
        !          2010:        printf ("\tval >>= 1;\n");
        !          2011:        printf ("\tif (carry) val |= %s;\n", cmask (curi->size));
        !          2012:        genflags (flag_logical, curi->size, "val", "", "");
        !          2013:        printf ("SET_CFLG (carry);\n");
        !          2014:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          2015:        break;
        !          2016:     case i_ROXLW:
        !          2017:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          2018:        start_brace ();
        !          2019:        switch (curi->size) {
        !          2020:        case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
        !          2021:        case sz_word: printf ("\tuae_u16 val = data;\n"); break;
        !          2022:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          2023:        default: abort ();
        !          2024:        }
        !          2025:        printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size));
        !          2026:        printf ("\tval <<= 1;\n");
        !          2027:        printf ("\tif (GET_XFLG) val |= 1;\n");
        !          2028:        genflags (flag_logical, curi->size, "val", "", "");
        !          2029:        printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1);
        !          2030:        duplicate_carry ();
        !          2031:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          2032:        break;
        !          2033:     case i_ROXRW:
        !          2034:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          2035:        start_brace ();
        !          2036:        switch (curi->size) {
        !          2037:        case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
        !          2038:        case sz_word: printf ("\tuae_u16 val = data;\n"); break;
        !          2039:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          2040:        default: abort ();
        !          2041:        }
        !          2042:        printf ("\tuae_u32 carry = val & 1;\n");
        !          2043:        printf ("\tval >>= 1;\n");
        !          2044:        printf ("\tif (GET_XFLG) val |= %s;\n", cmask (curi->size));
        !          2045:        genflags (flag_logical, curi->size, "val", "", "");
        !          2046:        printf ("SET_CFLG (carry);\n");
        !          2047:        duplicate_carry ();
        !          2048:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          2049:        break;
        !          2050:     case i_MOVEC2:
        !          2051:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          2052:        start_brace ();
        !          2053:        printf ("\tint regno = (src >> 12) & 15;\n");
        !          2054:        printf ("\tuae_u32 *regp = regs.regs + regno;\n");
        !          2055:        printf ("\tif (! m68k_movec2(src & 0xFFF, regp)) goto %s;\n", endlabelstr);
        !          2056:        break;
        !          2057:     case i_MOVE2C:
        !          2058:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          2059:        start_brace ();
        !          2060:        printf ("\tint regno = (src >> 12) & 15;\n");
        !          2061:        printf ("\tuae_u32 *regp = regs.regs + regno;\n");
        !          2062:        printf ("\tif (! m68k_move2c(src & 0xFFF, regp)) goto %s;\n", endlabelstr);
        !          2063:        break;
        !          2064:     case i_CAS:
        !          2065:     {
        !          2066:        int old_brace_level;
        !          2067:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          2068:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          2069:        start_brace ();
        !          2070:        printf ("\tint ru = (src >> 6) & 7;\n");
        !          2071:        printf ("\tint rc = src & 7;\n");
        !          2072:        genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, rc)", "dst");
        !          2073:        printf ("\tif (GET_ZFLG)");
        !          2074:        old_brace_level = n_braces;
        !          2075:        start_brace ();
        !          2076:        genastore ("(m68k_dreg(regs, ru))", curi->dmode, "dstreg", curi->size, "dst");
        !          2077:        pop_braces (old_brace_level);
        !          2078:        printf ("else");
        !          2079:        start_brace ();
        !          2080:        printf ("m68k_dreg(regs, rc) = dst;\n");
        !          2081:        pop_braces (old_brace_level);
        !          2082:     }
        !          2083:     break;
        !          2084:     case i_CAS2:
        !          2085:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          2086:        printf ("\tuae_u32 rn1 = regs.regs[(extra >> 28) & 15];\n");
        !          2087:        printf ("\tuae_u32 rn2 = regs.regs[(extra >> 12) & 15];\n");
        !          2088:        if (curi->size == sz_word) {
        !          2089:            int old_brace_level = n_braces;
        !          2090:            printf ("\tuae_u16 dst1 = get_word(rn1), dst2 = get_word(rn2);\n");
        !          2091:            genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1");
        !          2092:            printf ("\tif (GET_ZFLG) {\n");
        !          2093:            genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, extra & 7)", "dst2");
        !          2094:            printf ("\tif (GET_ZFLG) {\n");
        !          2095:            printf ("\tput_word(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n");
        !          2096:            printf ("\tput_word(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n");
        !          2097:            printf ("\t}}\n");
        !          2098:            pop_braces (old_brace_level);
        !          2099:            printf ("\tif (! GET_ZFLG) {\n");
        !          2100:            printf ("\tm68k_dreg(regs, (extra >> 22) & 7) = (m68k_dreg(regs, (extra >> 22) & 7) & ~0xffff) | (dst1 & 0xffff);\n");
        !          2101:            printf ("\tm68k_dreg(regs, (extra >> 6) & 7) = (m68k_dreg(regs, (extra >> 6) & 7) & ~0xffff) | (dst2 & 0xffff);\n");
        !          2102:            printf ("\t}\n");
        !          2103:        } else {
        !          2104:            int old_brace_level = n_braces;
        !          2105:            printf ("\tuae_u32 dst1 = get_long(rn1), dst2 = get_long(rn2);\n");
        !          2106:            genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1");
        !          2107:            printf ("\tif (GET_ZFLG) {\n");
        !          2108:            genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, extra & 7)", "dst2");
        !          2109:            printf ("\tif (GET_ZFLG) {\n");
        !          2110:            printf ("\tput_long(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n");
        !          2111:            printf ("\tput_long(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n");
        !          2112:            printf ("\t}}\n");
        !          2113:            pop_braces (old_brace_level);
        !          2114:            printf ("\tif (! GET_ZFLG) {\n");
        !          2115:            printf ("\tm68k_dreg(regs, (extra >> 22) & 7) = dst1;\n");
        !          2116:            printf ("\tm68k_dreg(regs, (extra >> 6) & 7) = dst2;\n");
        !          2117:            printf ("\t}\n");
        !          2118:        }
        !          2119:        break;
        !          2120:     case i_MOVES:              /* ignore DFC and SFC because we have no MMU */
        !          2121:     {
        !          2122:        int old_brace_level;
        !          2123:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          2124:        printf ("\tif (extra & 0x800)\n");
        !          2125:        old_brace_level = n_braces;
        !          2126:        start_brace ();
        !          2127:        printf ("\tuae_u32 src = regs.regs[(extra >> 12) & 15];\n");
        !          2128:        genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
        !          2129:        genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
        !          2130:        pop_braces (old_brace_level);
        !          2131:        printf ("else");
        !          2132:        start_brace ();
        !          2133:        genamode (curi->dmode, "dstreg", curi->size, "src", 1, 0);
        !          2134:        printf ("\tif (extra & 0x8000) {\n");
        !          2135:        switch (curi->size) {
        !          2136:        case sz_byte: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = (uae_s32)(uae_s8)src;\n"); break;
        !          2137:        case sz_word: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = (uae_s32)(uae_s16)src;\n"); break;
        !          2138:        case sz_long: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = src;\n"); break;
        !          2139:        default: abort ();
        !          2140:        }
        !          2141:        printf ("\t} else {\n");
        !          2142:        genastore ("src", Dreg, "(extra >> 12) & 7", curi->size, "");
        !          2143:        printf ("\t}\n");
        !          2144:        pop_braces (old_brace_level);
        !          2145:     }
        !          2146:     break;
        !          2147:     case i_BKPT:               /* only needed for hardware emulators */
        !          2148:        sync_m68k_pc ();
        !          2149:        printf ("\top_illg(opcode);\n");
        !          2150:        break;
        !          2151:     case i_CALLM:              /* not present in 68030 */
        !          2152:        sync_m68k_pc ();
        !          2153:        printf ("\top_illg(opcode);\n");
        !          2154:        break;
        !          2155:     case i_RTM:                /* not present in 68030 */
        !          2156:        sync_m68k_pc ();
        !          2157:        printf ("\top_illg(opcode);\n");
        !          2158:        break;
        !          2159:     case i_TRAPcc:
        !          2160:        if (curi->smode != am_unknown && curi->smode != am_illg)
        !          2161:            genamode (curi->smode, "srcreg", curi->size, "dummy", 1, 0);
        !          2162:        printf ("\tif (cctrue(%d)) { Exception(7,m68k_getpc()); goto %s; }\n", curi->cc, endlabelstr);
        !          2163:        need_endlabel = 1;
        !          2164:        break;
        !          2165:     case i_DIVL:
        !          2166:        sync_m68k_pc ();
        !          2167:        start_brace ();
        !          2168:        printf ("\tuaecptr oldpc = m68k_getpc();\n");
        !          2169:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          2170:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          2171:        sync_m68k_pc ();
        !          2172:        printf ("\tm68k_divl(opcode, dst, extra, oldpc);\n");
        !          2173:        break;
        !          2174:     case i_MULL:
        !          2175:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          2176:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          2177:        sync_m68k_pc ();
        !          2178:        printf ("\tm68k_mull(opcode, dst, extra);\n");
        !          2179:        break;
        !          2180:     case i_BFTST:
        !          2181:     case i_BFEXTU:
        !          2182:     case i_BFCHG:
        !          2183:     case i_BFEXTS:
        !          2184:     case i_BFCLR:
        !          2185:     case i_BFFFO:
        !          2186:     case i_BFSET:
        !          2187:     case i_BFINS:
        !          2188:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          2189:        genamode (curi->dmode, "dstreg", sz_long, "dst", 2, 0);
        !          2190:        start_brace ();
        !          2191:        printf ("\tuae_s32 offset = extra & 0x800 ? m68k_dreg(regs, (extra >> 6) & 7) : (extra >> 6) & 0x1f;\n");
        !          2192:        printf ("\tint width = (((extra & 0x20 ? m68k_dreg(regs, extra & 7) : extra) -1) & 0x1f) +1;\n");
        !          2193:        if (curi->dmode == Dreg) {
        !          2194:            printf ("\tuae_u32 tmp = m68k_dreg(regs, dstreg) << (offset & 0x1f);\n");
        !          2195:        } else {
        !          2196:            printf ("\tuae_u32 tmp,bf0,bf1;\n");
        !          2197:            printf ("\tdsta += (offset >> 3) | (offset & 0x80000000 ? ~0x1fffffff : 0);\n");
        !          2198:            printf ("\tbf0 = get_long(dsta);bf1 = get_byte(dsta+4) & 0xff;\n");
        !          2199:            printf ("\ttmp = (bf0 << (offset & 7)) | (bf1 >> (8 - (offset & 7)));\n");
        !          2200:        }
        !          2201:        printf ("\ttmp >>= (32 - width);\n");
        !          2202:        printf ("\tSET_NFLG (tmp & (1 << (width-1)) ? 1 : 0);\n");
        !          2203:        printf ("\tSET_ZFLG (tmp == 0); SET_VFLG (0); SET_CFLG (0);\n");
        !          2204:        switch (curi->mnemo) {
        !          2205:        case i_BFTST:
        !          2206:            break;
        !          2207:        case i_BFEXTU:
        !          2208:            printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n");
        !          2209:            break;
        !          2210:        case i_BFCHG:
        !          2211:            printf ("\ttmp = ~tmp;\n");
        !          2212:            break;
        !          2213:        case i_BFEXTS:
        !          2214:            printf ("\tif (GET_NFLG) tmp |= width == 32 ? 0 : (-1 << width);\n");
        !          2215:            printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n");
        !          2216:            break;
        !          2217:        case i_BFCLR:
        !          2218:            printf ("\ttmp = 0;\n");
        !          2219:            break;
        !          2220:        case i_BFFFO:
        !          2221:            printf ("\t{ uae_u32 mask = 1 << (width-1);\n");
        !          2222:            printf ("\twhile (mask) { if (tmp & mask) break; mask >>= 1; offset++; }}\n");
        !          2223:            printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = offset;\n");
        !          2224:            break;
        !          2225:        case i_BFSET:
        !          2226:            printf ("\ttmp = 0xffffffff;\n");
        !          2227:            break;
        !          2228:        case i_BFINS:
        !          2229:            printf ("\ttmp = m68k_dreg(regs, (extra >> 12) & 7);\n");
        !          2230:            printf ("\tSET_NFLG (tmp & (1 << (width - 1)) ? 1 : 0);\n");
        !          2231:            printf ("\tSET_ZFLG (tmp == 0);\n");
        !          2232:            break;
        !          2233:        default:
        !          2234:            break;
        !          2235:        }
        !          2236:        if (curi->mnemo == i_BFCHG
        !          2237:            || curi->mnemo == i_BFCLR
        !          2238:            || curi->mnemo == i_BFSET
        !          2239:            || curi->mnemo == i_BFINS)
        !          2240:            {
        !          2241:                printf ("\ttmp <<= (32 - width);\n");
        !          2242:                if (curi->dmode == Dreg) {
        !          2243:                    printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & ((offset & 0x1f) == 0 ? 0 :\n");
        !          2244:                    printf ("\t\t(0xffffffff << (32 - (offset & 0x1f))))) |\n");
        !          2245:                    printf ("\t\t(tmp >> (offset & 0x1f)) |\n");
        !          2246:                    printf ("\t\t(((offset & 0x1f) + width) >= 32 ? 0 :\n");
        !          2247:                    printf (" (m68k_dreg(regs, dstreg) & ((uae_u32)0xffffffff >> ((offset & 0x1f) + width))));\n");
        !          2248:                } else {
        !          2249:                    printf ("\tbf0 = (bf0 & (0xff000000 << (8 - (offset & 7)))) |\n");
        !          2250:                    printf ("\t\t(tmp >> (offset & 7)) |\n");
        !          2251:                    printf ("\t\t(((offset & 7) + width) >= 32 ? 0 :\n");
        !          2252:                    printf ("\t\t (bf0 & ((uae_u32)0xffffffff >> ((offset & 7) + width))));\n");
        !          2253:                    printf ("\tput_long(dsta,bf0 );\n");
        !          2254:                    printf ("\tif (((offset & 7) + width) > 32) {\n");
        !          2255:                    printf ("\t\tbf1 = (bf1 & (0xff >> (width - 32 + (offset & 7)))) |\n");
        !          2256:                    printf ("\t\t\t(tmp << (8 - (offset & 7)));\n");
        !          2257:                    printf ("\t\tput_byte(dsta+4,bf1);\n");
        !          2258:                    printf ("\t}\n");
        !          2259:                }
        !          2260:            }
        !          2261:        break;
        !          2262:     case i_PACK:
        !          2263:        if (curi->smode == Dreg) {
        !          2264:            printf ("\tuae_u16 val = m68k_dreg(regs, srcreg) + %s;\n", gen_nextiword ());
        !          2265:            printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffffff00) | ((val >> 4) & 0xf0) | (val & 0xf);\n");
        !          2266:        } else {
        !          2267:            printf ("\tuae_u16 val;\n");
        !          2268:            printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
        !          2269:            printf ("\tval = (uae_u16)get_byte(m68k_areg(regs, srcreg));\n");
        !          2270:            printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
        !          2271:            printf ("\tval = (val | ((uae_u16)get_byte(m68k_areg(regs, srcreg)) << 8)) + %s;\n", gen_nextiword ());
        !          2272:            printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
        !          2273:            printf ("\tput_byte(m68k_areg(regs, dstreg),((val >> 4) & 0xf0) | (val & 0xf));\n");
        !          2274:        }
        !          2275:        break;
        !          2276:     case i_UNPK:
        !          2277:        if (curi->smode == Dreg) {
        !          2278:            printf ("\tuae_u16 val = m68k_dreg(regs, srcreg);\n");
        !          2279:            printf ("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + %s;\n", gen_nextiword ());
        !          2280:            printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffff0000) | (val & 0xffff);\n");
        !          2281:        } else {
        !          2282:            printf ("\tuae_u16 val;\n");
        !          2283:            printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
        !          2284:            printf ("\tval = (uae_u16)get_byte(m68k_areg(regs, srcreg));\n");
        !          2285:            printf ("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + %s;\n", gen_nextiword ());
        !          2286:            printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
        !          2287:            printf ("\tput_byte(m68k_areg(regs, dstreg),val);\n");
        !          2288:            printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
        !          2289:            printf ("\tput_byte(m68k_areg(regs, dstreg),val >> 8);\n");
        !          2290:        }
        !          2291:        break;
        !          2292:     case i_TAS:
        !          2293:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          2294:        genflags (flag_logical, curi->size, "src", "", "");
        !          2295:        printf ("\tsrc |= 0x80;\n");
        !          2296:        genastore ("src", curi->smode, "srcreg", curi->size, "src");
        !          2297:         if( curi->smode!=Dreg )  insn_n_cycles += 2;
        !          2298:        break;
        !          2299: 
        !          2300:     default:
        !          2301:        abort ();
        !          2302:        break;
        !          2303:     }
        !          2304:     finish_braces ();
        !          2305:     sync_m68k_pc ();
        !          2306: }
        !          2307: 
        !          2308: static void generate_includes (FILE * f)
        !          2309: {
        !          2310:     fprintf (f, "#include \"sysdeps.h\"\n");
        !          2311:     fprintf (f, "#include \"hatari-glue.h\"\n");
        !          2312:     fprintf (f, "#include \"maccess.h\"\n");
        !          2313:     fprintf (f, "#include \"memory.h\"\n");
        !          2314:     fprintf (f, "#include \"newcpu.h\"\n");
        !          2315:     fprintf (f, "#include \"cputbl.h\"\n");
        !          2316:     fprintf (f, "#define CPUFUNC(x) x##_ff\n"
        !          2317:             "#ifdef NOFLAGS\n"
        !          2318:             "#include \"noflags.h\"\n"
        !          2319:             "#endif\n");
        !          2320: }
        !          2321: 
        !          2322: static int postfix;
        !          2323: 
        !          2324: static void generate_one_opcode (int rp)
        !          2325: {
        !          2326:     int i;
        !          2327:     uae_u16 smsk, dmsk;
        !          2328:     long int opcode = opcode_map[rp];
        !          2329: 
        !          2330:     exactCpuCycles[0] = 0;  /* Default: not used */
        !          2331: 
        !          2332:     if (table68k[opcode].mnemo == i_ILLG
        !          2333:        || table68k[opcode].clev > cpu_level)
        !          2334:        return;
        !          2335: 
        !          2336:     for (i = 0; lookuptab[i].name[0]; i++) {
        !          2337:        if (table68k[opcode].mnemo == lookuptab[i].mnemo)
        !          2338:            break;
        !          2339:     }
        !          2340: 
        !          2341:     if (table68k[opcode].handler != -1)
        !          2342:        return;
        !          2343: 
        !          2344:     if (opcode_next_clev[rp] != cpu_level) {
        !          2345:        fprintf (stblfile, "{ CPUFUNC(op_%lx_%d), 0, %ld }, /* %s */\n", opcode, opcode_last_postfix[rp],
        !          2346:                 opcode, lookuptab[i].name);
        !          2347:        return;
        !          2348:     }
        !          2349:     fprintf (stblfile, "{ CPUFUNC(op_%lx_%d), 0, %ld }, /* %s */\n", opcode, postfix, opcode, lookuptab[i].name);
        !          2350:     fprintf (headerfile, "extern cpuop_func op_%lx_%d_nf;\n", opcode, postfix);
        !          2351:     fprintf (headerfile, "extern cpuop_func op_%lx_%d_ff;\n", opcode, postfix);
        !          2352:     printf ("unsigned long REGPARAM2 CPUFUNC(op_%lx_%d)(uae_u32 opcode) /* %s */\n{\n", opcode, postfix, lookuptab[i].name);
        !          2353: 
        !          2354:     switch (table68k[opcode].stype) {
        !          2355:      case 0: smsk = 7; break;
        !          2356:      case 1: smsk = 255; break;
        !          2357:      case 2: smsk = 15; break;
        !          2358:      case 3: smsk = 7; break;
        !          2359:      case 4: smsk = 7; break;
        !          2360:      case 5: smsk = 63; break;
        !          2361:      case 7: smsk = 3; break;
        !          2362:      default: abort ();
        !          2363:     }
        !          2364:     dmsk = 7;
        !          2365: 
        !          2366:     next_cpu_level = -1;
        !          2367:     if (table68k[opcode].suse
        !          2368:        && table68k[opcode].smode != imm && table68k[opcode].smode != imm0
        !          2369:        && table68k[opcode].smode != imm1 && table68k[opcode].smode != imm2
        !          2370:        && table68k[opcode].smode != absw && table68k[opcode].smode != absl
        !          2371:        && table68k[opcode].smode != PC8r && table68k[opcode].smode != PC16)
        !          2372:     {
        !          2373:        if (table68k[opcode].spos == -1) {
        !          2374:            if (((int) table68k[opcode].sreg) >= 128)
        !          2375:                printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].sreg);
        !          2376:            else
        !          2377:                printf ("\tuae_u32 srcreg = %d;\n", (int) table68k[opcode].sreg);
        !          2378:        } else {
        !          2379:            char source[100];
        !          2380:            int pos = table68k[opcode].spos;
        !          2381: 
        !          2382:            if (pos)
        !          2383:                sprintf (source, "((opcode >> %d) & %d)", pos, smsk);
        !          2384:            else
        !          2385:                sprintf (source, "(opcode & %d)", smsk);
        !          2386: 
        !          2387:            if (table68k[opcode].stype == 3)
        !          2388:                printf ("\tuae_u32 srcreg = imm8_table[%s];\n", source);
        !          2389:            else if (table68k[opcode].stype == 1)
        !          2390:                printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%s;\n", source);
        !          2391:            else
        !          2392:                printf ("\tuae_u32 srcreg = %s;\n", source);
        !          2393:        }
        !          2394:     }
        !          2395:     if (table68k[opcode].duse
        !          2396:        /* Yes, the dmode can be imm, in case of LINK or DBcc */
        !          2397:        && table68k[opcode].dmode != imm && table68k[opcode].dmode != imm0
        !          2398:        && table68k[opcode].dmode != imm1 && table68k[opcode].dmode != imm2
        !          2399:        && table68k[opcode].dmode != absw && table68k[opcode].dmode != absl)
        !          2400:     {
        !          2401:        if (table68k[opcode].dpos == -1) {
        !          2402:            if (((int) table68k[opcode].dreg) >= 128)
        !          2403:                printf ("\tuae_u32 dstreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].dreg);
        !          2404:            else
        !          2405:                printf ("\tuae_u32 dstreg = %d;\n", (int) table68k[opcode].dreg);
        !          2406:        } else {
        !          2407:            int pos = table68k[opcode].dpos;
        !          2408: #if 0
        !          2409:            /* Check that we can do the little endian optimization safely.  */
        !          2410:            if (pos < 8 && (dmsk >> (8 - pos)) != 0)
        !          2411:                abort ();
        !          2412: #endif     
        !          2413:            if (pos)
        !          2414:                printf ("\tuae_u32 dstreg = (opcode >> %d) & %d;\n",
        !          2415:                        pos, dmsk);
        !          2416:            else
        !          2417:                printf ("\tuae_u32 dstreg = opcode & %d;\n", dmsk);
        !          2418:        }
        !          2419:     }
        !          2420:     need_endlabel = 0;
        !          2421:     endlabelno++;
        !          2422:     sprintf (endlabelstr, "endlabel%d", endlabelno);
        !          2423:     if(table68k[opcode].mnemo==i_ASR || table68k[opcode].mnemo==i_ASL || table68k[opcode].mnemo==i_LSR || table68k[opcode].mnemo==i_LSL
        !          2424:        || table68k[opcode].mnemo==i_ROL || table68k[opcode].mnemo==i_ROR || table68k[opcode].mnemo==i_ROXL || table68k[opcode].mnemo==i_ROXR
        !          2425:        || table68k[opcode].mnemo==i_MVMEL || table68k[opcode].mnemo==i_MVMLE)
        !          2426:       printf("\tunsigned int retcycles;\n");
        !          2427:     gen_opcode (opcode);
        !          2428:     if (need_endlabel)
        !          2429:        printf ("%s: ;\n", endlabelstr);
        !          2430:     if( strlen(exactCpuCycles) > 0 )
        !          2431:       printf("%s\n",exactCpuCycles);
        !          2432:      else
        !          2433:       printf ("return %d;\n", insn_n_cycles);
        !          2434:     printf ("}\n");
        !          2435:     opcode_next_clev[rp] = next_cpu_level;
        !          2436:     opcode_last_postfix[rp] = postfix;
        !          2437: }
        !          2438: 
        !          2439: static void generate_func (void)
        !          2440: {
        !          2441:     int i, j, rp;
        !          2442: 
        !          2443:     using_prefetch = 0;
        !          2444:     using_exception_3 = 0;
        !          2445:     for (i = 0; i < 6; i++) {
        !          2446:        cpu_level = 4 - i;
        !          2447:        if (i == 5) {
        !          2448:            cpu_level = 0;
        !          2449:            using_prefetch = 1;
        !          2450:            using_exception_3 = 1;
        !          2451:            for (rp = 0; rp < nr_cpuop_funcs; rp++)
        !          2452:                opcode_next_clev[rp] = 0;
        !          2453:        }
        !          2454: 
        !          2455:        postfix = i;
        !          2456:        fprintf (stblfile, "struct cputbl CPUFUNC(op_smalltbl_%d)[] = {\n", postfix);
        !          2457: 
        !          2458:        /* sam: this is for people with low memory (eg. me :)) */
        !          2459:        printf ("\n"
        !          2460:                 "#if !defined(PART_1) && !defined(PART_2) && "
        !          2461:                    "!defined(PART_3) && !defined(PART_4) && "
        !          2462:                    "!defined(PART_5) && !defined(PART_6) && "
        !          2463:                    "!defined(PART_7) && !defined(PART_8)"
        !          2464:                "\n"
        !          2465:                "#define PART_1 1\n"
        !          2466:                "#define PART_2 1\n"
        !          2467:                "#define PART_3 1\n"
        !          2468:                "#define PART_4 1\n"
        !          2469:                "#define PART_5 1\n"
        !          2470:                "#define PART_6 1\n"
        !          2471:                "#define PART_7 1\n"
        !          2472:                "#define PART_8 1\n"
        !          2473:                "#endif\n\n");
        !          2474:        
        !          2475:        rp = 0;
        !          2476:        for(j=1;j<=8;++j) {
        !          2477:                int k = (j*nr_cpuop_funcs)/8;
        !          2478:                printf ("#ifdef PART_%d\n",j);
        !          2479:                for (; rp < k; rp++)
        !          2480:                   generate_one_opcode (rp);
        !          2481:                printf ("#endif\n\n");
        !          2482:        }
        !          2483: 
        !          2484:        fprintf (stblfile, "{ 0, 0, 0 }};\n");
        !          2485:     }
        !          2486: 
        !          2487: }
        !          2488: 
        !          2489: int main (int argc, char **argv)
        !          2490: {
        !          2491:     read_table68k ();
        !          2492:     do_merges ();
        !          2493: 
        !          2494:     opcode_map = (int *) malloc (sizeof (int) * nr_cpuop_funcs);
        !          2495:     opcode_last_postfix = (int *) malloc (sizeof (int) * nr_cpuop_funcs);
        !          2496:     opcode_next_clev = (int *) malloc (sizeof (int) * nr_cpuop_funcs);
        !          2497:     counts = (unsigned long *) malloc (65536 * sizeof (unsigned long));
        !          2498:     read_counts ();
        !          2499: 
        !          2500:     /* It would be a lot nicer to put all in one file (we'd also get rid of
        !          2501:      * cputbl.h that way), but cpuopti can't cope.  That could be fixed, but
        !          2502:      * I don't dare to touch the 68k version.  */
        !          2503: 
        !          2504:     headerfile = fopen ("cputbl.h", "wb");
        !          2505:     stblfile = fopen ("cpustbl.c", "wb");
        !          2506:     freopen ("cpuemu.c", "wb", stdout);
        !          2507: 
        !          2508:     generate_includes (stdout);
        !          2509:     generate_includes (stblfile);
        !          2510: 
        !          2511:     generate_func ();
        !          2512: 
        !          2513:     free (table68k);
        !          2514:     return 0;
        !          2515: }

unix.superglobalmegacorp.com