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Annotation of hatari/src/uae-cpu/gencpu.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * UAE - The Un*x Amiga Emulator
        !             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: 
        !            21: #include <ctype.h>
        !            22: 
        !            23: /*
        !            24: #include "sysconfig.h"
        !            25: #include "config.h"
        !            26: #include "options.h"
        !            27: */
        !            28: #include "sysdeps.h"
        !            29: #include "readcpu.h"
        !            30: 
        !            31: #define BOOL_TYPE "int"
        !            32: 
        !            33: static FILE *headerfile;
        !            34: static FILE *stblfile;
        !            35: 
        !            36: static int using_prefetch;
        !            37: static int using_exception_3;
        !            38: static int cpu_level;
        !            39: 
        !            40: /* For the current opcode, the next lower level that will have different code.
        !            41:  * Initialized to -1 for each opcode. If it remains unchanged, indicates we
        !            42:  * are done with that opcode.  */
        !            43: static int next_cpu_level;
        !            44: 
        !            45: void write_log (const char *s, ...)
        !            46: {
        !            47:     fprintf (stderr, "%s", s);
        !            48: }
        !            49: 
        !            50: static int *opcode_map;
        !            51: static int *opcode_next_clev;
        !            52: static int *opcode_last_postfix;
        !            53: static unsigned long *counts;
        !            54: 
        !            55: static void read_counts (void)
        !            56: {
        !            57:     FILE *file;
        !            58:     unsigned long opcode, count, total;
        !            59:     char name[20];
        !            60:     int nr = 0;
        !            61:     memset (counts, 0, 65536 * sizeof *counts);
        !            62: 
        !            63:     file = fopen ("frequent.68k", "r");
        !            64:     if (file) {
        !            65:        fscanf (file, "Total: %lu\n", &total);
        !            66:        while (fscanf (file, "%lx: %lu %s\n", &opcode, &count, name) == 3) {
        !            67:            opcode_next_clev[nr] = 4;
        !            68:            opcode_last_postfix[nr] = -1;
        !            69:            opcode_map[nr++] = opcode;
        !            70:            counts[opcode] = count;
        !            71:        }
        !            72:        fclose (file);
        !            73:     }
        !            74:     if (nr == nr_cpuop_funcs)
        !            75:        return;
        !            76:     for (opcode = 0; opcode < 0x10000; opcode++) {
        !            77:        if (table68k[opcode].handler == -1 && table68k[opcode].mnemo != i_ILLG
        !            78:            && counts[opcode] == 0)
        !            79:        {
        !            80:            opcode_next_clev[nr] = 4;
        !            81:            opcode_last_postfix[nr] = -1;
        !            82:            opcode_map[nr++] = opcode;
        !            83:            counts[opcode] = count;
        !            84:        }
        !            85:     }
        !            86:     if (nr != nr_cpuop_funcs)
        !            87:        abort ();
        !            88: }
        !            89: 
        !            90: static char endlabelstr[80];
        !            91: static int endlabelno = 0;
        !            92: static int need_endlabel;
        !            93: 
        !            94: static int n_braces = 0;
        !            95: static int m68k_pc_offset = 0;
        !            96: static int insn_n_cycles;
        !            97: 
        !            98: static void start_brace (void)
        !            99: {
        !           100:     n_braces++;
        !           101:     printf ("{");
        !           102: }
        !           103: 
        !           104: static void close_brace (void)
        !           105: {
        !           106:     assert (n_braces > 0);
        !           107:     n_braces--;
        !           108:     printf ("}");
        !           109: }
        !           110: 
        !           111: static void finish_braces (void)
        !           112: {
        !           113:     while (n_braces > 0)
        !           114:        close_brace ();
        !           115: }
        !           116: 
        !           117: static void pop_braces (int to)
        !           118: {
        !           119:     while (n_braces > to)
        !           120:        close_brace ();
        !           121: }
        !           122: 
        !           123: static int bit_size (int size)
        !           124: {
        !           125:     switch (size) {
        !           126:      case sz_byte: return 8;
        !           127:      case sz_word: return 16;
        !           128:      case sz_long: return 32;
        !           129:      default: abort ();
        !           130:     }
        !           131:     return 0;
        !           132: }
        !           133: 
        !           134: static const char *bit_mask (int size)
        !           135: {
        !           136:     switch (size) {
        !           137:      case sz_byte: return "0xff";
        !           138:      case sz_word: return "0xffff";
        !           139:      case sz_long: return "0xffffffff";
        !           140:      default: abort ();
        !           141:     }
        !           142:     return 0;
        !           143: }
        !           144: 
        !           145: static const char *gen_nextilong (void)
        !           146: {
        !           147:     static char buffer[80];
        !           148:     int r = m68k_pc_offset;
        !           149:     m68k_pc_offset += 4;
        !           150: 
        !           151:     insn_n_cycles += 8;
        !           152: 
        !           153:     if (using_prefetch)
        !           154:        sprintf (buffer, "get_ilong_prefetch(%d)", r);
        !           155:     else
        !           156:        sprintf (buffer, "get_ilong(%d)", r);
        !           157:     return buffer;
        !           158: }
        !           159: 
        !           160: static const char *gen_nextiword (void)
        !           161: {
        !           162:     static char buffer[80];
        !           163:     int r = m68k_pc_offset;
        !           164:     m68k_pc_offset += 2;
        !           165: 
        !           166:     insn_n_cycles += 4;
        !           167: 
        !           168:     if (using_prefetch)
        !           169:        sprintf (buffer, "get_iword_prefetch(%d)", r);
        !           170:     else
        !           171:        sprintf (buffer, "get_iword(%d)", r);
        !           172:     return buffer;
        !           173: }
        !           174: 
        !           175: static const char *gen_nextibyte (void)
        !           176: {
        !           177:     static char buffer[80];
        !           178:     int r = m68k_pc_offset;
        !           179:     m68k_pc_offset += 2;
        !           180: 
        !           181:     insn_n_cycles += 4;
        !           182: 
        !           183:     if (using_prefetch)
        !           184:        sprintf (buffer, "get_ibyte_prefetch(%d)", r);
        !           185:     else
        !           186:        sprintf (buffer, "get_ibyte(%d)", r);
        !           187:     return buffer;
        !           188: }
        !           189: 
        !           190: static void fill_prefetch_0 (void)
        !           191: {
        !           192:     if (using_prefetch)
        !           193:        printf ("fill_prefetch_0 ();\n");
        !           194: }
        !           195: 
        !           196: static void fill_prefetch_2 (void)
        !           197: {
        !           198:     if (using_prefetch)
        !           199:        printf ("fill_prefetch_2 ();\n");
        !           200: }
        !           201: 
        !           202: static void sync_m68k_pc (void)
        !           203: {
        !           204:     if (m68k_pc_offset == 0)
        !           205:        return;
        !           206:     printf ("m68k_incpc(%d);\n", m68k_pc_offset);
        !           207:     switch (m68k_pc_offset) {
        !           208:      case 0:
        !           209:        /*fprintf (stderr, "refilling prefetch at 0\n"); */
        !           210:        break;
        !           211:      case 2:
        !           212:        fill_prefetch_2 ();
        !           213:        break;
        !           214:      default:
        !           215:        fill_prefetch_0 ();
        !           216:        break;
        !           217:     }
        !           218:     m68k_pc_offset = 0;
        !           219: }
        !           220: 
        !           221: /* getv == 1: fetch data; getv != 0: check for odd address. If movem != 0,
        !           222:  * the calling routine handles Apdi and Aipi modes. */
        !           223: static void genamode (amodes mode, char *reg, wordsizes size, char *name, int getv, int movem)
        !           224: {
        !           225:     start_brace ();
        !           226:     switch (mode) {
        !           227:     case Dreg:
        !           228:        if (movem)
        !           229:            abort ();
        !           230:        if (getv == 1)
        !           231:            switch (size) {
        !           232:            case sz_byte:
        !           233: #if defined(AMIGA) && !defined(WARPUP)
        !           234:                /* sam: I don't know why gcc.2.7.2.1 produces a code worse */
        !           235:                /* if it is not done like that: */
        !           236:                printf ("\tuae_s8 %s = ((uae_u8*)&m68k_dreg(regs, %s))[3];\n", name, reg);
        !           237: #else
        !           238:                printf ("\tuae_s8 %s = m68k_dreg(regs, %s);\n", name, reg);
        !           239: #endif
        !           240:                break;
        !           241:            case sz_word:
        !           242: #if defined(AMIGA) && !defined(WARPUP)
        !           243:                printf ("\tuae_s16 %s = ((uae_s16*)&m68k_dreg(regs, %s))[1];\n", name, reg);
        !           244: #else
        !           245:                printf ("\tuae_s16 %s = m68k_dreg(regs, %s);\n", name, reg);
        !           246: #endif
        !           247:                break;
        !           248:            case sz_long:
        !           249:                printf ("\tuae_s32 %s = m68k_dreg(regs, %s);\n", name, reg);
        !           250:                break;
        !           251:            default:
        !           252:                abort ();
        !           253:            }
        !           254:        return;
        !           255:     case Areg:
        !           256:        if (movem)
        !           257:            abort ();
        !           258:        if (getv == 1)
        !           259:            switch (size) {
        !           260:            case sz_word:
        !           261:                printf ("\tuae_s16 %s = m68k_areg(regs, %s);\n", name, reg);
        !           262:                break;
        !           263:            case sz_long:
        !           264:                printf ("\tuae_s32 %s = m68k_areg(regs, %s);\n", name, reg);
        !           265:                break;
        !           266:            default:
        !           267:                abort ();
        !           268:            }
        !           269:        return;
        !           270:     case Aind:
        !           271:        printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg);
        !           272:        break;
        !           273:     case Aipi:
        !           274:        printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg);
        !           275:        break;
        !           276:     case Apdi:
        !           277:        insn_n_cycles += 2;
        !           278:        switch (size) {
        !           279:        case sz_byte:
        !           280:            if (movem)
        !           281:                printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg);
        !           282:            else
        !           283:                printf ("\tuaecptr %sa = m68k_areg(regs, %s) - areg_byteinc[%s];\n", name, reg, reg);
        !           284:            break;
        !           285:        case sz_word:
        !           286:            printf ("\tuaecptr %sa = m68k_areg(regs, %s) - %d;\n", name, reg, movem ? 0 : 2);
        !           287:            break;
        !           288:        case sz_long:
        !           289:            printf ("\tuaecptr %sa = m68k_areg(regs, %s) - %d;\n", name, reg, movem ? 0 : 4);
        !           290:            break;
        !           291:        default:
        !           292:            abort ();
        !           293:        }
        !           294:        break;
        !           295:     case Ad16:
        !           296:        printf ("\tuaecptr %sa = m68k_areg(regs, %s) + (uae_s32)(uae_s16)%s;\n", name, reg, gen_nextiword ());
        !           297:        break;
        !           298:     case Ad8r:
        !           299:        insn_n_cycles += 2;
        !           300:        if (cpu_level > 1) {
        !           301:            if (next_cpu_level < 1)
        !           302:                next_cpu_level = 1;
        !           303:            sync_m68k_pc ();
        !           304:            start_brace ();
        !           305:            /* This would ordinarily be done in gen_nextiword, which we bypass.  */
        !           306:            insn_n_cycles += 4;
        !           307:            printf ("\tuaecptr %sa = get_disp_ea_020(m68k_areg(regs, %s), next_iword());\n", name, reg);
        !           308:        } else
        !           309:            printf ("\tuaecptr %sa = get_disp_ea_000(m68k_areg(regs, %s), %s);\n", name, reg, gen_nextiword ());
        !           310: 
        !           311:        break;
        !           312:     case PC16:
        !           313:        printf ("\tuaecptr %sa = m68k_getpc () + %d;\n", name, m68k_pc_offset);
        !           314:        printf ("\t%sa += (uae_s32)(uae_s16)%s;\n", name, gen_nextiword ());
        !           315:        break;
        !           316:     case PC8r:
        !           317:        insn_n_cycles += 2;
        !           318:        if (cpu_level > 1) {
        !           319:            if (next_cpu_level < 1)
        !           320:                next_cpu_level = 1;
        !           321:            sync_m68k_pc ();
        !           322:            start_brace ();
        !           323:            /* This would ordinarily be done in gen_nextiword, which we bypass.  */
        !           324:            insn_n_cycles += 4;
        !           325:            printf ("\tuaecptr tmppc = m68k_getpc();\n");
        !           326:            printf ("\tuaecptr %sa = get_disp_ea_020(tmppc, next_iword());\n", name);
        !           327:        } else {
        !           328:            printf ("\tuaecptr tmppc = m68k_getpc() + %d;\n", m68k_pc_offset);
        !           329:            printf ("\tuaecptr %sa = get_disp_ea_000(tmppc, %s);\n", name, gen_nextiword ());
        !           330:        }
        !           331: 
        !           332:        break;
        !           333:     case absw:
        !           334:        printf ("\tuaecptr %sa = (uae_s32)(uae_s16)%s;\n", name, gen_nextiword ());
        !           335:        break;
        !           336:     case absl:
        !           337:        printf ("\tuaecptr %sa = %s;\n", name, gen_nextilong ());
        !           338:        break;
        !           339:     case imm:
        !           340:        if (getv != 1)
        !           341:            abort ();
        !           342:        switch (size) {
        !           343:        case sz_byte:
        !           344:            printf ("\tuae_s8 %s = %s;\n", name, gen_nextibyte ());
        !           345:            break;
        !           346:        case sz_word:
        !           347:            printf ("\tuae_s16 %s = %s;\n", name, gen_nextiword ());
        !           348:            break;
        !           349:        case sz_long:
        !           350:            printf ("\tuae_s32 %s = %s;\n", name, gen_nextilong ());
        !           351:            break;
        !           352:        default:
        !           353:            abort ();
        !           354:        }
        !           355:        return;
        !           356:     case imm0:
        !           357:        if (getv != 1)
        !           358:            abort ();
        !           359:        printf ("\tuae_s8 %s = %s;\n", name, gen_nextibyte ());
        !           360:        return;
        !           361:     case imm1:
        !           362:        if (getv != 1)
        !           363:            abort ();
        !           364:        printf ("\tuae_s16 %s = %s;\n", name, gen_nextiword ());
        !           365:        return;
        !           366:     case imm2:
        !           367:        if (getv != 1)
        !           368:            abort ();
        !           369:        printf ("\tuae_s32 %s = %s;\n", name, gen_nextilong ());
        !           370:        return;
        !           371:     case immi:
        !           372:        if (getv != 1)
        !           373:            abort ();
        !           374:        printf ("\tuae_u32 %s = %s;\n", name, reg);
        !           375:        return;
        !           376:     default:
        !           377:        abort ();
        !           378:     }
        !           379: 
        !           380:     /* We get here for all non-reg non-immediate addressing modes to
        !           381:      * actually fetch the value. */
        !           382: 
        !           383:     if (using_exception_3 && getv != 0 && size != sz_byte) {       
        !           384:        printf ("\tif ((%sa & 1) != 0) {\n", name);
        !           385:        printf ("\t\tlast_fault_for_exception_3 = %sa;\n", name);
        !           386:        printf ("\t\tlast_op_for_exception_3 = opcode;\n");
        !           387:        printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + %d;\n", m68k_pc_offset);
        !           388:        printf ("\t\tException(3, 0);\n");
        !           389:        printf ("\t\tgoto %s;\n", endlabelstr);
        !           390:        printf ("\t}\n");
        !           391:        need_endlabel = 1;
        !           392:        start_brace ();
        !           393:     }
        !           394: 
        !           395:     if (getv == 1) {
        !           396:        switch (size) {
        !           397:        case sz_byte: insn_n_cycles += 4; break;
        !           398:        case sz_word: insn_n_cycles += 4; break;
        !           399:        case sz_long: insn_n_cycles += 8; break;
        !           400:        default: abort ();
        !           401:        }
        !           402:        start_brace ();
        !           403:        switch (size) {
        !           404:        case sz_byte: printf ("\tuae_s8 %s = get_byte(%sa);\n", name, name); break;
        !           405:        case sz_word: printf ("\tuae_s16 %s = get_word(%sa);\n", name, name); break;
        !           406:        case sz_long: printf ("\tuae_s32 %s = get_long(%sa);\n", name, name); break;
        !           407:        default: abort ();
        !           408:        }
        !           409:     }
        !           410: 
        !           411:     /* We now might have to fix up the register for pre-dec or post-inc
        !           412:      * addressing modes. */
        !           413:     if (!movem)
        !           414:        switch (mode) {
        !           415:        case Aipi:
        !           416:            switch (size) {
        !           417:            case sz_byte:
        !           418:                printf ("\tm68k_areg(regs, %s) += areg_byteinc[%s];\n", reg, reg);
        !           419:                break;
        !           420:            case sz_word:
        !           421:                printf ("\tm68k_areg(regs, %s) += 2;\n", reg);
        !           422:                break;
        !           423:            case sz_long:
        !           424:                printf ("\tm68k_areg(regs, %s) += 4;\n", reg);
        !           425:                break;
        !           426:            default:
        !           427:                abort ();
        !           428:            }
        !           429:            break;
        !           430:        case Apdi:
        !           431:            printf ("\tm68k_areg (regs, %s) = %sa;\n", reg, name);
        !           432:            break;
        !           433:        default:
        !           434:            break;
        !           435:        }
        !           436: }
        !           437: 
        !           438: static void genastore (char *from, amodes mode, char *reg, wordsizes size, char *to)
        !           439: {
        !           440:     switch (mode) {
        !           441:      case Dreg:
        !           442:        switch (size) {
        !           443:         case sz_byte:
        !           444:            printf ("\tm68k_dreg(regs, %s) = (m68k_dreg(regs, %s) & ~0xff) | ((%s) & 0xff);\n", reg, reg, from);
        !           445:            break;
        !           446:         case sz_word:
        !           447:            printf ("\tm68k_dreg(regs, %s) = (m68k_dreg(regs, %s) & ~0xffff) | ((%s) & 0xffff);\n", reg, reg, from);
        !           448:            break;
        !           449:         case sz_long:
        !           450:            printf ("\tm68k_dreg(regs, %s) = (%s);\n", reg, from);
        !           451:            break;
        !           452:         default:
        !           453:            abort ();
        !           454:        }
        !           455:        break;
        !           456:      case Areg:
        !           457:        switch (size) {
        !           458:         case sz_word:
        !           459:            fprintf (stderr, "Foo\n");
        !           460:            printf ("\tm68k_areg(regs, %s) = (uae_s32)(uae_s16)(%s);\n", reg, from);
        !           461:            break;
        !           462:         case sz_long:
        !           463:            printf ("\tm68k_areg(regs, %s) = (%s);\n", reg, from);
        !           464:            break;
        !           465:         default:
        !           466:            abort ();
        !           467:        }
        !           468:        break;
        !           469:      case Aind:
        !           470:      case Aipi:
        !           471:      case Apdi:
        !           472:      case Ad16:
        !           473:      case Ad8r:
        !           474:      case absw:
        !           475:      case absl:
        !           476:      case PC16:
        !           477:      case PC8r:
        !           478:        if (using_prefetch)
        !           479:            sync_m68k_pc ();
        !           480:        switch (size) {
        !           481:         case sz_byte:
        !           482:            insn_n_cycles += 4;
        !           483:            printf ("\tput_byte(%sa,%s);\n", to, from);
        !           484:            break;
        !           485:         case sz_word:
        !           486:            insn_n_cycles += 4;
        !           487:            if (cpu_level < 2 && (mode == PC16 || mode == PC8r))
        !           488:                abort ();
        !           489:            printf ("\tput_word(%sa,%s);\n", to, from);
        !           490:            break;
        !           491:         case sz_long:
        !           492:            insn_n_cycles += 8;
        !           493:            if (cpu_level < 2 && (mode == PC16 || mode == PC8r))
        !           494:                abort ();
        !           495:            printf ("\tput_long(%sa,%s);\n", to, from);
        !           496:            break;
        !           497:         default:
        !           498:            abort ();
        !           499:        }
        !           500:        break;
        !           501:      case imm:
        !           502:      case imm0:
        !           503:      case imm1:
        !           504:      case imm2:
        !           505:      case immi:
        !           506:        abort ();
        !           507:        break;
        !           508:      default:
        !           509:        abort ();
        !           510:     }
        !           511: }
        !           512: 
        !           513: static void genmovemel (uae_u16 opcode)
        !           514: {
        !           515:     char getcode[100];
        !           516:     int size = table68k[opcode].size == sz_long ? 4 : 2;
        !           517: 
        !           518:     if (table68k[opcode].size == sz_long) {
        !           519:        strcpy (getcode, "get_long(srca)");
        !           520:     } else {
        !           521:        strcpy (getcode, "(uae_s32)(uae_s16)get_word(srca)");
        !           522:     }
        !           523: 
        !           524:     printf ("\tuae_u16 mask = %s;\n", gen_nextiword ());
        !           525:     printf ("\tunsigned int dmask = mask & 0xff, amask = (mask >> 8) & 0xff;\n");
        !           526:     genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 2, 1);
        !           527:     start_brace ();
        !           528:     printf ("\twhile (dmask) { m68k_dreg(regs, movem_index1[dmask]) = %s; srca += %d; dmask = movem_next[dmask]; }\n",
        !           529:            getcode, size);
        !           530:     printf ("\twhile (amask) { m68k_areg(regs, movem_index1[amask]) = %s; srca += %d; amask = movem_next[amask]; }\n",
        !           531:            getcode, size);
        !           532: 
        !           533:     if (table68k[opcode].dmode == Aipi)
        !           534:        printf ("\tm68k_areg(regs, dstreg) = srca;\n");
        !           535: }
        !           536: 
        !           537: static void genmovemle (uae_u16 opcode)
        !           538: {
        !           539:     char putcode[100];
        !           540:     int size = table68k[opcode].size == sz_long ? 4 : 2;
        !           541:     if (table68k[opcode].size == sz_long) {
        !           542:        strcpy (putcode, "put_long(srca,");
        !           543:     } else {
        !           544:        strcpy (putcode, "put_word(srca,");
        !           545:     }
        !           546: 
        !           547:     printf ("\tuae_u16 mask = %s;\n", gen_nextiword ());
        !           548:     genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 2, 1);
        !           549:     if (using_prefetch)
        !           550:        sync_m68k_pc ();
        !           551: 
        !           552:     start_brace ();
        !           553:     if (table68k[opcode].dmode == Apdi) {
        !           554:        printf ("\tuae_u16 amask = mask & 0xff, dmask = (mask >> 8) & 0xff;\n");
        !           555:        printf ("\twhile (amask) { srca -= %d; %s m68k_areg(regs, movem_index2[amask])); amask = movem_next[amask]; }\n",
        !           556:                size, putcode);
        !           557:        printf ("\twhile (dmask) { srca -= %d; %s m68k_dreg(regs, movem_index2[dmask])); dmask = movem_next[dmask]; }\n",
        !           558:                size, putcode);
        !           559:        printf ("\tm68k_areg(regs, dstreg) = srca;\n");
        !           560:     } else {
        !           561:        printf ("\tuae_u16 dmask = mask & 0xff, amask = (mask >> 8) & 0xff;\n");
        !           562:        printf ("\twhile (dmask) { %s m68k_dreg(regs, movem_index1[dmask])); srca += %d; dmask = movem_next[dmask]; }\n",
        !           563:                putcode, size);
        !           564:        printf ("\twhile (amask) { %s m68k_areg(regs, movem_index1[amask])); srca += %d; amask = movem_next[amask]; }\n",
        !           565:                putcode, size);
        !           566:     }
        !           567: }
        !           568: 
        !           569: static void duplicate_carry (void)
        !           570: {
        !           571:     printf ("\tCOPY_CARRY;\n");
        !           572: }
        !           573: 
        !           574: typedef enum
        !           575: {
        !           576:   flag_logical_noclobber, flag_logical, flag_add, flag_sub, flag_cmp, flag_addx, flag_subx, flag_zn,
        !           577:   flag_av, flag_sv
        !           578: }
        !           579: flagtypes;
        !           580: 
        !           581: static void genflags_normal (flagtypes type, wordsizes size, char *value, char *src, char *dst)
        !           582: {
        !           583:     char vstr[100], sstr[100], dstr[100];
        !           584:     char usstr[100], udstr[100];
        !           585:     char unsstr[100], undstr[100];
        !           586: 
        !           587:     switch (size) {
        !           588:      case sz_byte:
        !           589:        strcpy (vstr, "((uae_s8)(");
        !           590:        strcpy (usstr, "((uae_u8)(");
        !           591:        break;
        !           592:      case sz_word:
        !           593:        strcpy (vstr, "((uae_s16)(");
        !           594:        strcpy (usstr, "((uae_u16)(");
        !           595:        break;
        !           596:      case sz_long:
        !           597:        strcpy (vstr, "((uae_s32)(");
        !           598:        strcpy (usstr, "((uae_u32)(");
        !           599:        break;
        !           600:      default:
        !           601:        abort ();
        !           602:     }
        !           603:     strcpy (unsstr, usstr);
        !           604: 
        !           605:     strcpy (sstr, vstr);
        !           606:     strcpy (dstr, vstr);
        !           607:     strcat (vstr, value);
        !           608:     strcat (vstr, "))");
        !           609:     strcat (dstr, dst);
        !           610:     strcat (dstr, "))");
        !           611:     strcat (sstr, src);
        !           612:     strcat (sstr, "))");
        !           613: 
        !           614:     strcpy (udstr, usstr);
        !           615:     strcat (udstr, dst);
        !           616:     strcat (udstr, "))");
        !           617:     strcat (usstr, src);
        !           618:     strcat (usstr, "))");
        !           619: 
        !           620:     strcpy (undstr, unsstr);
        !           621:     strcat (unsstr, "-");
        !           622:     strcat (undstr, "~");
        !           623:     strcat (undstr, dst);
        !           624:     strcat (undstr, "))");
        !           625:     strcat (unsstr, src);
        !           626:     strcat (unsstr, "))");
        !           627: 
        !           628:     switch (type) {
        !           629:      case flag_logical_noclobber:
        !           630:      case flag_logical:
        !           631:      case flag_zn:
        !           632:      case flag_av:
        !           633:      case flag_sv:
        !           634:      case flag_addx:
        !           635:      case flag_subx:
        !           636:        break;
        !           637: 
        !           638:      case flag_add:
        !           639:        start_brace ();
        !           640:        printf ("uae_u32 %s = %s + %s;\n", value, dstr, sstr);
        !           641:        break;
        !           642:      case flag_sub:
        !           643:      case flag_cmp:
        !           644:        start_brace ();
        !           645:        printf ("uae_u32 %s = %s - %s;\n", value, dstr, sstr);
        !           646:        break;
        !           647:     }
        !           648: 
        !           649:     switch (type) {
        !           650:      case flag_logical_noclobber:
        !           651:      case flag_logical:
        !           652:      case flag_zn:
        !           653:        break;
        !           654: 
        !           655:      case flag_add:
        !           656:      case flag_sub:
        !           657:      case flag_addx:
        !           658:      case flag_subx:
        !           659:      case flag_cmp:
        !           660:      case flag_av:
        !           661:      case flag_sv:
        !           662:        start_brace ();
        !           663:        printf ("\t" BOOL_TYPE " flgs = %s < 0;\n", sstr);
        !           664:        printf ("\t" BOOL_TYPE " flgo = %s < 0;\n", dstr);
        !           665:        printf ("\t" BOOL_TYPE " flgn = %s < 0;\n", vstr);
        !           666:        break;
        !           667:     }
        !           668: 
        !           669:     switch (type) {
        !           670:      case flag_logical:
        !           671:        printf ("\tCLEAR_CZNV;\n");
        !           672:        printf ("\tSET_ZFLG (%s == 0);\n", vstr);
        !           673:        printf ("\tSET_NFLG (%s < 0);\n", vstr);
        !           674:        break;
        !           675:      case flag_logical_noclobber:
        !           676:        printf ("\tSET_ZFLG (%s == 0);\n", vstr);
        !           677:        printf ("\tSET_NFLG (%s < 0);\n", vstr);
        !           678:        break;
        !           679:      case flag_av:
        !           680:        printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n");
        !           681:        break;
        !           682:      case flag_sv:
        !           683:        printf ("\tSET_VFLG ((flgs ^ flgo) & (flgn ^ flgo));\n");
        !           684:        break;
        !           685:      case flag_zn:
        !           686:        printf ("\tSET_ZFLG (GET_ZFLG & (%s == 0));\n", vstr);
        !           687:        printf ("\tSET_NFLG (%s < 0);\n", vstr);
        !           688:        break;
        !           689:      case flag_add:
        !           690:        printf ("\tSET_ZFLG (%s == 0);\n", vstr);
        !           691:        printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n");
        !           692:        printf ("\tSET_CFLG (%s < %s);\n", undstr, usstr);
        !           693:        duplicate_carry ();
        !           694:        printf ("\tSET_NFLG (flgn != 0);\n");
        !           695:        break;
        !           696:      case flag_sub:
        !           697:        printf ("\tSET_ZFLG (%s == 0);\n", vstr);
        !           698:        printf ("\tSET_VFLG ((flgs ^ flgo) & (flgn ^ flgo));\n");
        !           699:        printf ("\tSET_CFLG (%s > %s);\n", usstr, udstr);
        !           700:        duplicate_carry ();
        !           701:        printf ("\tSET_NFLG (flgn != 0);\n");
        !           702:        break;
        !           703:      case flag_addx:
        !           704:        printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n"); /* minterm SON: 0x42 */
        !           705:        printf ("\tSET_CFLG (flgs ^ ((flgs ^ flgo) & (flgo ^ flgn)));\n"); /* minterm SON: 0xD4 */
        !           706:        duplicate_carry ();
        !           707:        break;
        !           708:      case flag_subx:
        !           709:        printf ("\tSET_VFLG ((flgs ^ flgo) & (flgo ^ flgn));\n"); /* minterm SON: 0x24 */
        !           710:        printf ("\tSET_CFLG (flgs ^ ((flgs ^ flgn) & (flgo ^ flgn)));\n"); /* minterm SON: 0xB2 */
        !           711:        duplicate_carry ();
        !           712:        break;
        !           713:      case flag_cmp:
        !           714:        printf ("\tSET_ZFLG (%s == 0);\n", vstr);
        !           715:        printf ("\tSET_VFLG ((flgs != flgo) && (flgn != flgo));\n");
        !           716:        printf ("\tSET_CFLG (%s > %s);\n", usstr, udstr);
        !           717:        printf ("\tSET_NFLG (flgn != 0);\n");
        !           718:        break;
        !           719:     }
        !           720: }
        !           721: 
        !           722: static void genflags (flagtypes type, wordsizes size, char *value, char *src, char *dst)
        !           723: {
        !           724:     /* Temporarily deleted 68k/ARM flag optimizations.  I'd prefer to have
        !           725:        them in the appropriate m68k.h files and use just one copy of this
        !           726:        code here.  The API can be changed if necessary.  */
        !           727: #ifdef OPTIMIZED_FLAGS
        !           728:     switch (type) {
        !           729:      case flag_add:
        !           730:      case flag_sub:
        !           731:        start_brace ();
        !           732:        printf ("\tuae_u32 %s;\n", value);
        !           733:        break;
        !           734: 
        !           735:      default:
        !           736:        break;
        !           737:     }
        !           738: 
        !           739:     /* At least some of those casts are fairly important! */
        !           740:     switch (type) {
        !           741:      case flag_logical_noclobber:
        !           742:        printf ("\t{uae_u32 oldcznv = GET_CZNV & ~(FLAGVAL_Z | FLAGVAL_N);\n");
        !           743:        if (strcmp (value, "0") == 0) {
        !           744:            printf ("\tSET_CZNV (olcznv | FLAGVAL_Z);\n");
        !           745:        } else {
        !           746:            switch (size) {
        !           747:             case sz_byte: printf ("\toptflag_testb ((uae_s8)(%s));\n", value); break;
        !           748:             case sz_word: printf ("\toptflag_testw ((uae_s16)(%s));\n", value); break;
        !           749:             case sz_long: printf ("\toptflag_testl ((uae_s32)(%s));\n", value); break;
        !           750:            }
        !           751:            printf ("\tIOR_CZNV (oldcznv);\n");
        !           752:        }
        !           753:        printf ("\t}\n");
        !           754:        return;
        !           755:      case flag_logical:
        !           756:        if (strcmp (value, "0") == 0) {
        !           757:            printf ("\tSET_CZNV (FLAGVAL_Z);\n");
        !           758:        } else {
        !           759:            switch (size) {
        !           760:             case sz_byte: printf ("\toptflag_testb ((uae_s8)(%s));\n", value); break;
        !           761:             case sz_word: printf ("\toptflag_testw ((uae_s16)(%s));\n", value); break;
        !           762:             case sz_long: printf ("\toptflag_testl ((uae_s32)(%s));\n", value); break;
        !           763:            }
        !           764:        }
        !           765:        return;
        !           766: 
        !           767:      case flag_add:
        !           768:        switch (size) {
        !           769:         case sz_byte: printf ("\toptflag_addb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
        !           770:         case sz_word: printf ("\toptflag_addw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
        !           771:         case sz_long: printf ("\toptflag_addl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
        !           772:        }
        !           773:        return;
        !           774: 
        !           775:      case flag_sub:
        !           776:        switch (size) {
        !           777:         case sz_byte: printf ("\toptflag_subb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break;
        !           778:         case sz_word: printf ("\toptflag_subw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break;
        !           779:         case sz_long: printf ("\toptflag_subl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break;
        !           780:        }
        !           781:        return;
        !           782: 
        !           783:      case flag_cmp:
        !           784:        switch (size) {
        !           785:         case sz_byte: printf ("\toptflag_cmpb ((uae_s8)(%s), (uae_s8)(%s));\n", src, dst); break;
        !           786:         case sz_word: printf ("\toptflag_cmpw ((uae_s16)(%s), (uae_s16)(%s));\n", src, dst); break;
        !           787:         case sz_long: printf ("\toptflag_cmpl ((uae_s32)(%s), (uae_s32)(%s));\n", src, dst); break;
        !           788:        }
        !           789:        return;
        !           790:        
        !           791:      default:
        !           792:        break;
        !           793:     }
        !           794: #endif
        !           795: 
        !           796:     genflags_normal (type, size, value, src, dst);
        !           797: }
        !           798: 
        !           799: static void force_range_for_rox (const char *var, wordsizes size)
        !           800: {
        !           801:     /* Could do a modulo operation here... which one is faster? */
        !           802:     switch (size) {
        !           803:      case sz_long:
        !           804:        printf ("\tif (%s >= 33) %s -= 33;\n", var, var);
        !           805:        break;
        !           806:      case sz_word:
        !           807:        printf ("\tif (%s >= 34) %s -= 34;\n", var, var);
        !           808:        printf ("\tif (%s >= 17) %s -= 17;\n", var, var);
        !           809:        break;
        !           810:      case sz_byte:
        !           811:        printf ("\tif (%s >= 36) %s -= 36;\n", var, var);
        !           812:        printf ("\tif (%s >= 18) %s -= 18;\n", var, var);
        !           813:        printf ("\tif (%s >= 9) %s -= 9;\n", var, var);
        !           814:        break;
        !           815:     }
        !           816: }
        !           817: 
        !           818: static const char *cmask (wordsizes size)
        !           819: {
        !           820:     switch (size) {
        !           821:      case sz_byte: return "0x80";
        !           822:      case sz_word: return "0x8000";
        !           823:      case sz_long: return "0x80000000";
        !           824:      default: abort ();
        !           825:     }
        !           826: }
        !           827: 
        !           828: static int source_is_imm1_8 (struct instr *i)
        !           829: {
        !           830:     return i->stype == 3;
        !           831: }
        !           832: 
        !           833: static void gen_opcode (unsigned long int opcode)
        !           834: {
        !           835:     struct instr *curi = table68k + opcode;
        !           836:     insn_n_cycles = 4;
        !           837: 
        !           838:     start_brace ();
        !           839: #if 0
        !           840:     printf ("uae_u8 *m68k_pc = regs.pc_p;\n");
        !           841: #endif
        !           842:     m68k_pc_offset = 2;
        !           843:     switch (curi->plev) {
        !           844:     case 0: /* not privileged */
        !           845:        break;
        !           846:     case 1: /* unprivileged only on 68000 */
        !           847:        if (cpu_level == 0)
        !           848:            break;
        !           849:        if (next_cpu_level < 0)
        !           850:            next_cpu_level = 0;
        !           851: 
        !           852:        /* fall through */
        !           853:     case 2: /* priviledged */
        !           854:        printf ("if (!regs.s) { Exception(8,0); goto %s; }\n", endlabelstr);
        !           855:        need_endlabel = 1;
        !           856:        start_brace ();
        !           857:        break;
        !           858:     case 3: /* privileged if size == word */
        !           859:        if (curi->size == sz_byte)
        !           860:            break;
        !           861:        printf ("if (!regs.s) { Exception(8,0); goto %s; }\n", endlabelstr);
        !           862:        need_endlabel = 1;
        !           863:        start_brace ();
        !           864:        break;
        !           865:     }
        !           866:     switch (curi->mnemo) {
        !           867:     case i_OR:
        !           868:     case i_AND:
        !           869:     case i_EOR:
        !           870:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           871:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !           872:        printf ("\tsrc %c= dst;\n", curi->mnemo == i_OR ? '|' : curi->mnemo == i_AND ? '&' : '^');
        !           873:        genflags (flag_logical, curi->size, "src", "", "");
        !           874:        genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
        !           875:        break;
        !           876:     case i_ORSR:
        !           877:     case i_EORSR:
        !           878:        printf ("\tMakeSR();\n");
        !           879:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           880:        if (curi->size == sz_byte) {
        !           881:            printf ("\tsrc &= 0xFF;\n");
        !           882:        }
        !           883:        printf ("\tregs.sr %c= src;\n", curi->mnemo == i_EORSR ? '^' : '|');
        !           884:        printf ("\tMakeFromSR();\n");
        !           885:        break;
        !           886:     case i_ANDSR:
        !           887:        printf ("\tMakeSR();\n");
        !           888:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           889:        if (curi->size == sz_byte) {
        !           890:            printf ("\tsrc |= 0xFF00;\n");
        !           891:        }
        !           892:        printf ("\tregs.sr &= src;\n");
        !           893:        printf ("\tMakeFromSR();\n");
        !           894:        break;
        !           895:     case i_SUB:
        !           896:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           897:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !           898:        start_brace ();
        !           899:        genflags (flag_sub, curi->size, "newv", "src", "dst");
        !           900:        genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
        !           901:        break;
        !           902:     case i_SUBA:
        !           903:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           904:        genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
        !           905:        start_brace ();
        !           906:        printf ("\tuae_u32 newv = dst - src;\n");
        !           907:        genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
        !           908:        break;
        !           909:     case i_SUBX:
        !           910:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           911:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !           912:        start_brace ();
        !           913:        printf ("\tuae_u32 newv = dst - src - (GET_XFLG ? 1 : 0);\n");
        !           914:        genflags (flag_subx, curi->size, "newv", "src", "dst");
        !           915:        genflags (flag_zn, curi->size, "newv", "", "");
        !           916:        genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
        !           917:        break;
        !           918:     case i_SBCD:
        !           919:        /* Let's hope this works... */
        !           920:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           921:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !           922:        start_brace ();
        !           923:        printf ("\tuae_u16 newv_lo = (dst & 0xF) - (src & 0xF) - (GET_XFLG ? 1 : 0);\n");
        !           924:        printf ("\tuae_u16 newv_hi = (dst & 0xF0) - (src & 0xF0);\n");
        !           925:        printf ("\tuae_u16 newv;\n");
        !           926:        printf ("\tint cflg;\n");
        !           927:        printf ("\tif (newv_lo > 9) { newv_lo-=6; newv_hi-=0x10; }\n");
        !           928:        printf ("\tnewv = newv_hi + (newv_lo & 0xF);");
        !           929:        printf ("\tcflg = (newv_hi & 0x1F0) > 0x90;\n");
        !           930:        printf ("\tSET_CFLG (cflg);\n");
        !           931:        duplicate_carry ();
        !           932:        printf ("\tif (cflg) newv -= 0x60;\n");
        !           933:        genflags (flag_zn, curi->size, "newv", "", "");
        !           934:        genflags (flag_sv, curi->size, "newv", "src", "dst");
        !           935:        genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
        !           936:        break;
        !           937:     case i_ADD:
        !           938:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           939:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !           940:        start_brace ();
        !           941:        genflags (flag_add, curi->size, "newv", "src", "dst");
        !           942:        genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
        !           943:        break;
        !           944:     case i_ADDA:
        !           945:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           946:        genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
        !           947:        start_brace ();
        !           948:        printf ("\tuae_u32 newv = dst + src;\n");
        !           949:        genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
        !           950:        break;
        !           951:     case i_ADDX:
        !           952:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           953:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !           954:        start_brace ();
        !           955:        printf ("\tuae_u32 newv = dst + src + (GET_XFLG ? 1 : 0);\n");
        !           956:        genflags (flag_addx, curi->size, "newv", "src", "dst");
        !           957:        genflags (flag_zn, curi->size, "newv", "", "");
        !           958:        genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
        !           959:        break;
        !           960:     case i_ABCD:
        !           961:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           962:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !           963:        start_brace ();
        !           964:        printf ("\tuae_u16 newv_lo = (src & 0xF) + (dst & 0xF) + (GET_XFLG ? 1 : 0);\n");
        !           965:        printf ("\tuae_u16 newv_hi = (src & 0xF0) + (dst & 0xF0);\n");
        !           966:        printf ("\tuae_u16 newv;\n");
        !           967:        printf ("\tint cflg;\n");
        !           968:        printf ("\tif (newv_lo > 9) { newv_lo +=6; }\n");
        !           969:        printf ("\tnewv = newv_hi + newv_lo;");
        !           970:        printf ("\tcflg = (newv & 0x1F0) > 0x90;\n");
        !           971:        printf ("\tSET_CFLG (cflg);\n");
        !           972:        duplicate_carry ();
        !           973:        printf ("\tif (cflg) newv += 0x60;\n");
        !           974:        genflags (flag_zn, curi->size, "newv", "", "");
        !           975:        genflags (flag_sv, curi->size, "newv", "src", "dst");
        !           976:        genastore ("newv", curi->dmode, "dstreg", curi->size, "dst");
        !           977:        break;
        !           978:     case i_NEG:
        !           979:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           980:        start_brace ();
        !           981:        genflags (flag_sub, curi->size, "dst", "src", "0");
        !           982:        genastore ("dst", curi->smode, "srcreg", curi->size, "src");
        !           983:        break;
        !           984:     case i_NEGX:
        !           985:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           986:        start_brace ();
        !           987:        printf ("\tuae_u32 newv = 0 - src - (GET_XFLG ? 1 : 0);\n");
        !           988:        genflags (flag_subx, curi->size, "newv", "src", "0");
        !           989:        genflags (flag_zn, curi->size, "newv", "", "");
        !           990:        genastore ("newv", curi->smode, "srcreg", curi->size, "src");
        !           991:        break;
        !           992:     case i_NBCD:
        !           993:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !           994:        start_brace ();
        !           995:        printf ("\tuae_u16 newv_lo = - (src & 0xF) - (GET_XFLG ? 1 : 0);\n");
        !           996:        printf ("\tuae_u16 newv_hi = - (src & 0xF0);\n");
        !           997:        printf ("\tuae_u16 newv;\n");
        !           998:        printf ("\tint cflg;\n");
        !           999:        printf ("\tif (newv_lo > 9) { newv_lo-=6; newv_hi-=0x10; }\n");
        !          1000:        printf ("\tnewv = newv_hi + (newv_lo & 0xF);");
        !          1001:        printf ("\tcflg = cflg = (newv_hi & 0x1F0) > 0x90;\n");
        !          1002:        printf ("\tSET_CFLG (cflg);\n");
        !          1003:        duplicate_carry();
        !          1004:        printf ("\tif (cflg) newv -= 0x60;\n");
        !          1005:        genflags (flag_zn, curi->size, "newv", "", "");
        !          1006:        genastore ("newv", curi->smode, "srcreg", curi->size, "src");
        !          1007:        break;
        !          1008:     case i_CLR:
        !          1009:        genamode (curi->smode, "srcreg", curi->size, "src", 2, 0);
        !          1010:        genflags (flag_logical, curi->size, "0", "", "");
        !          1011:        genastore ("0", curi->smode, "srcreg", curi->size, "src");
        !          1012:        break;
        !          1013:     case i_NOT:
        !          1014:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1015:        start_brace ();
        !          1016:        printf ("\tuae_u32 dst = ~src;\n");
        !          1017:        genflags (flag_logical, curi->size, "dst", "", "");
        !          1018:        genastore ("dst", curi->smode, "srcreg", curi->size, "src");
        !          1019:        break;
        !          1020:     case i_TST:
        !          1021:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1022:        genflags (flag_logical, curi->size, "src", "", "");
        !          1023:        break;
        !          1024:     case i_BTST:
        !          1025:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1026:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1027:        if (curi->size == sz_byte)
        !          1028:            printf ("\tsrc &= 7;\n");
        !          1029:        else
        !          1030:            printf ("\tsrc &= 31;\n");
        !          1031:        printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n");
        !          1032:        break;
        !          1033:     case i_BCHG:
        !          1034:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1035:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1036:        if (curi->size == sz_byte)
        !          1037:            printf ("\tsrc &= 7;\n");
        !          1038:        else
        !          1039:            printf ("\tsrc &= 31;\n");
        !          1040:        printf ("\tdst ^= (1 << src);\n");
        !          1041:        printf ("\tSET_ZFLG (((uae_u32)dst & (1 << src)) >> src);\n");
        !          1042:        genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
        !          1043:        break;
        !          1044:     case i_BCLR:
        !          1045:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1046:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1047:        if (curi->size == sz_byte)
        !          1048:            printf ("\tsrc &= 7;\n");
        !          1049:        else
        !          1050:            printf ("\tsrc &= 31;\n");
        !          1051:        printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n");
        !          1052:        printf ("\tdst &= ~(1 << src);\n");
        !          1053:        genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
        !          1054:        break;
        !          1055:     case i_BSET:
        !          1056:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1057:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1058:        if (curi->size == sz_byte)
        !          1059:            printf ("\tsrc &= 7;\n");
        !          1060:        else
        !          1061:            printf ("\tsrc &= 31;\n");
        !          1062:        printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n");
        !          1063:        printf ("\tdst |= (1 << src);\n");
        !          1064:        genastore ("dst", curi->dmode, "dstreg", curi->size, "dst");
        !          1065:        break;
        !          1066:     case i_CMPM:
        !          1067:     case i_CMP:
        !          1068:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1069:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1070:        start_brace ();
        !          1071:        genflags (flag_cmp, curi->size, "newv", "src", "dst");
        !          1072:        break;
        !          1073:     case i_CMPA:
        !          1074:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1075:        genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
        !          1076:        start_brace ();
        !          1077:        genflags (flag_cmp, sz_long, "newv", "src", "dst");
        !          1078:        break;
        !          1079:        /* The next two are coded a little unconventional, but they are doing
        !          1080:         * weird things... */
        !          1081:     case i_MVPRM:
        !          1082:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1083: 
        !          1084:        printf ("\tuaecptr memp = m68k_areg(regs, dstreg) + (uae_s32)(uae_s16)%s;\n", gen_nextiword ());
        !          1085:        if (curi->size == sz_word) {
        !          1086:            printf ("\tput_byte(memp, src >> 8); put_byte(memp + 2, src);\n");
        !          1087:        } else {
        !          1088:            printf ("\tput_byte(memp, src >> 24); put_byte(memp + 2, src >> 16);\n");
        !          1089:            printf ("\tput_byte(memp + 4, src >> 8); put_byte(memp + 6, src);\n");
        !          1090:        }
        !          1091:        break;
        !          1092:     case i_MVPMR:
        !          1093:        printf ("\tuaecptr memp = m68k_areg(regs, srcreg) + (uae_s32)(uae_s16)%s;\n", gen_nextiword ());
        !          1094:        genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
        !          1095:        if (curi->size == sz_word) {
        !          1096:            printf ("\tuae_u16 val = (get_byte(memp) << 8) + get_byte(memp + 2);\n");
        !          1097:        } else {
        !          1098:            printf ("\tuae_u32 val = (get_byte(memp) << 24) + (get_byte(memp + 2) << 16)\n");
        !          1099:            printf ("              + (get_byte(memp + 4) << 8) + get_byte(memp + 6);\n");
        !          1100:        }
        !          1101:        genastore ("val", curi->dmode, "dstreg", curi->size, "dst");
        !          1102:        break;
        !          1103:     case i_MOVE:
        !          1104:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1105:        genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
        !          1106:        genflags (flag_logical, curi->size, "src", "", "");
        !          1107:        genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
        !          1108:        break;
        !          1109:     case i_MOVEA:
        !          1110:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1111:        genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
        !          1112:        if (curi->size == sz_word) {
        !          1113:            printf ("\tuae_u32 val = (uae_s32)(uae_s16)src;\n");
        !          1114:        } else {
        !          1115:            printf ("\tuae_u32 val = src;\n");
        !          1116:        }
        !          1117:        genastore ("val", curi->dmode, "dstreg", sz_long, "dst");
        !          1118:        break;
        !          1119:     case i_MVSR2:
        !          1120:        genamode (curi->smode, "srcreg", sz_word, "src", 2, 0);
        !          1121:        printf ("\tMakeSR();\n");
        !          1122:        if (curi->size == sz_byte)
        !          1123:            genastore ("regs.sr & 0xff", curi->smode, "srcreg", sz_word, "src");
        !          1124:        else
        !          1125:            genastore ("regs.sr", curi->smode, "srcreg", sz_word, "src");
        !          1126:        break;
        !          1127:     case i_MV2SR:
        !          1128:        genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
        !          1129:        if (curi->size == sz_byte)
        !          1130:            printf ("\tMakeSR();\n\tregs.sr &= 0xFF00;\n\tregs.sr |= src & 0xFF;\n");
        !          1131:        else {
        !          1132:            printf ("\tregs.sr = src;\n");
        !          1133:        }
        !          1134:        printf ("\tMakeFromSR();\n");
        !          1135:        break;
        !          1136:     case i_SWAP:
        !          1137:        genamode (curi->smode, "srcreg", sz_long, "src", 1, 0);
        !          1138:        start_brace ();
        !          1139:        printf ("\tuae_u32 dst = ((src >> 16)&0xFFFF) | ((src&0xFFFF)<<16);\n");
        !          1140:        genflags (flag_logical, sz_long, "dst", "", "");
        !          1141:        genastore ("dst", curi->smode, "srcreg", sz_long, "src");
        !          1142:        break;
        !          1143:     case i_EXG:
        !          1144:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1145:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1146:        genastore ("dst", curi->smode, "srcreg", curi->size, "src");
        !          1147:        genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
        !          1148:        break;
        !          1149:     case i_EXT:
        !          1150:        genamode (curi->smode, "srcreg", sz_long, "src", 1, 0);
        !          1151:        start_brace ();
        !          1152:        switch (curi->size) {
        !          1153:        case sz_byte: printf ("\tuae_u32 dst = (uae_s32)(uae_s8)src;\n"); break;
        !          1154:        case sz_word: printf ("\tuae_u16 dst = (uae_s16)(uae_s8)src;\n"); break;
        !          1155:        case sz_long: printf ("\tuae_u32 dst = (uae_s32)(uae_s16)src;\n"); break;
        !          1156:        default: abort ();
        !          1157:        }
        !          1158:        genflags (flag_logical,
        !          1159:                  curi->size == sz_word ? sz_word : sz_long, "dst", "", "");
        !          1160:        genastore ("dst", curi->smode, "srcreg",
        !          1161:                   curi->size == sz_word ? sz_word : sz_long, "src");
        !          1162:        break;
        !          1163:     case i_MVMEL:
        !          1164:        genmovemel (opcode);
        !          1165:        break;
        !          1166:     case i_MVMLE:
        !          1167:        genmovemle (opcode);
        !          1168:        break;
        !          1169:     case i_TRAP:
        !          1170:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1171:        sync_m68k_pc ();
        !          1172:        printf ("\tException(src+32,0);\n");
        !          1173:        m68k_pc_offset = 0;
        !          1174:        break;
        !          1175:     case i_MVR2USP:
        !          1176:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1177:        printf ("\tregs.usp = src;\n");
        !          1178:        break;
        !          1179:     case i_MVUSP2R:
        !          1180:        genamode (curi->smode, "srcreg", curi->size, "src", 2, 0);
        !          1181:        genastore ("regs.usp", curi->smode, "srcreg", curi->size, "src");
        !          1182:        break;
        !          1183:     case i_RESET:
        !          1184:        printf ("\tcustomreset();\n");
        !          1185:        break;
        !          1186:     case i_NOP:
        !          1187:        break;
        !          1188:     case i_STOP:
        !          1189:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1190:        printf ("\tregs.sr = src;\n");
        !          1191:        printf ("\tMakeFromSR();\n");
        !          1192:        printf ("\tm68k_setstopped(1);\n");
        !          1193:        break;
        !          1194:     case i_RTE:
        !          1195:        if (cpu_level == 0) {
        !          1196:            genamode (Aipi, "7", sz_word, "sr", 1, 0);
        !          1197:            genamode (Aipi, "7", sz_long, "pc", 1, 0);
        !          1198:            printf ("\tregs.sr = sr; m68k_setpc_rte(pc);\n");
        !          1199:            fill_prefetch_0 ();
        !          1200:            printf ("\tMakeFromSR();\n");
        !          1201:        } else {
        !          1202:            int old_brace_level = n_braces;
        !          1203:            if (next_cpu_level < 0)
        !          1204:                next_cpu_level = 0;
        !          1205:            printf ("\tuae_u16 newsr; uae_u32 newpc; for (;;) {\n");
        !          1206:            genamode (Aipi, "7", sz_word, "sr", 1, 0);
        !          1207:            genamode (Aipi, "7", sz_long, "pc", 1, 0);
        !          1208:            genamode (Aipi, "7", sz_word, "format", 1, 0);
        !          1209:            printf ("\tnewsr = sr; newpc = pc;\n");
        !          1210:            printf ("\tif ((format & 0xF000) == 0x0000) { break; }\n");
        !          1211:            printf ("\telse if ((format & 0xF000) == 0x1000) { ; }\n");
        !          1212:            printf ("\telse if ((format & 0xF000) == 0x2000) { m68k_areg(regs, 7) += 4; break; }\n");
        !          1213:            printf ("\telse if ((format & 0xF000) == 0x8000) { m68k_areg(regs, 7) += 50; break; }\n");
        !          1214:            printf ("\telse if ((format & 0xF000) == 0x9000) { m68k_areg(regs, 7) += 12; break; }\n");
        !          1215:            printf ("\telse if ((format & 0xF000) == 0xa000) { m68k_areg(regs, 7) += 24; break; }\n");
        !          1216:            printf ("\telse if ((format & 0xF000) == 0xb000) { m68k_areg(regs, 7) += 84; break; }\n");
        !          1217:            printf ("\telse { Exception(14,0); goto %s; }\n", endlabelstr);
        !          1218:            printf ("\tregs.sr = newsr; MakeFromSR();\n}\n");
        !          1219:            pop_braces (old_brace_level);
        !          1220:            printf ("\tregs.sr = newsr; MakeFromSR();\n");
        !          1221:            printf ("\tm68k_setpc_rte(newpc);\n");
        !          1222:            fill_prefetch_0 ();
        !          1223:            need_endlabel = 1;
        !          1224:        }
        !          1225:        /* PC is set and prefetch filled. */
        !          1226:        m68k_pc_offset = 0;
        !          1227:        break;
        !          1228:     case i_RTD:
        !          1229:        printf ("\tcompiler_flush_jsr_stack();\n");
        !          1230:        genamode (Aipi, "7", sz_long, "pc", 1, 0);
        !          1231:        genamode (curi->smode, "srcreg", curi->size, "offs", 1, 0);
        !          1232:        printf ("\tm68k_areg(regs, 7) += offs;\n");
        !          1233:        printf ("\tm68k_setpc_rte(pc);\n");
        !          1234:        fill_prefetch_0 ();
        !          1235:        /* PC is set and prefetch filled. */
        !          1236:        m68k_pc_offset = 0;
        !          1237:        break;
        !          1238:     case i_LINK:
        !          1239:        genamode (Apdi, "7", sz_long, "old", 2, 0);
        !          1240:        genamode (curi->smode, "srcreg", sz_long, "src", 1, 0);
        !          1241:        genastore ("src", Apdi, "7", sz_long, "old");
        !          1242:        genastore ("m68k_areg(regs, 7)", curi->smode, "srcreg", sz_long, "src");
        !          1243:        genamode (curi->dmode, "dstreg", curi->size, "offs", 1, 0);
        !          1244:        printf ("\tm68k_areg(regs, 7) += offs;\n");
        !          1245:        break;
        !          1246:     case i_UNLK:
        !          1247:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1248:        printf ("\tm68k_areg(regs, 7) = src;\n");
        !          1249:        genamode (Aipi, "7", sz_long, "old", 1, 0);
        !          1250:        genastore ("old", curi->smode, "srcreg", curi->size, "src");
        !          1251:        break;
        !          1252:     case i_RTS:
        !          1253:        printf ("\tm68k_do_rts();\n");
        !          1254:        fill_prefetch_0 ();
        !          1255:        m68k_pc_offset = 0;
        !          1256:        break;
        !          1257:     case i_TRAPV:
        !          1258:        sync_m68k_pc ();
        !          1259:        printf ("\tif (GET_VFLG) { Exception(7,m68k_getpc()); goto %s; }\n", endlabelstr);
        !          1260:        need_endlabel = 1;
        !          1261:        break;
        !          1262:     case i_RTR:
        !          1263:        printf ("\tcompiler_flush_jsr_stack();\n");
        !          1264:        printf ("\tMakeSR();\n");
        !          1265:        genamode (Aipi, "7", sz_word, "sr", 1, 0);
        !          1266:        genamode (Aipi, "7", sz_long, "pc", 1, 0);
        !          1267:        printf ("\tregs.sr &= 0xFF00; sr &= 0xFF;\n");
        !          1268:        printf ("\tregs.sr |= sr; m68k_setpc(pc);\n");
        !          1269:        fill_prefetch_0 ();
        !          1270:        printf ("\tMakeFromSR();\n");
        !          1271:        m68k_pc_offset = 0;
        !          1272:        break;
        !          1273:     case i_JSR:
        !          1274:        genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
        !          1275:        printf ("\tm68k_do_jsr(m68k_getpc() + %d, srca);\n", m68k_pc_offset);
        !          1276:        fill_prefetch_0 ();
        !          1277:        m68k_pc_offset = 0;
        !          1278:        break;
        !          1279:     case i_JMP:
        !          1280:        genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
        !          1281:        printf ("\tm68k_setpc(srca);\n");
        !          1282:        fill_prefetch_0 ();
        !          1283:        m68k_pc_offset = 0;
        !          1284:        break;
        !          1285:     case i_BSR:
        !          1286:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1287:        printf ("\tuae_s32 s = (uae_s32)src + 2;\n");
        !          1288:        if (using_exception_3) {
        !          1289:            printf ("\tif (src & 1) {\n");
        !          1290:            printf ("\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
        !          1291:            printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + s;\n");
        !          1292:            printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
        !          1293:            printf ("\t}\n");
        !          1294:            need_endlabel = 1;
        !          1295:        }
        !          1296:        printf ("\tm68k_do_bsr(m68k_getpc() + %d, s);\n", m68k_pc_offset);
        !          1297:        fill_prefetch_0 ();
        !          1298:        m68k_pc_offset = 0;
        !          1299:        break;
        !          1300:     case i_Bcc:
        !          1301:        if (curi->size == sz_long) {
        !          1302:            if (cpu_level < 2) {
        !          1303:                printf ("\tm68k_incpc(2);\n");
        !          1304:                printf ("\tif (!cctrue(%d)) goto %s;\n", curi->cc, endlabelstr);
        !          1305:                printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
        !          1306:                printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + 1;\n");
        !          1307:                printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
        !          1308:                need_endlabel = 1;
        !          1309:            } else {
        !          1310:                if (next_cpu_level < 1)
        !          1311:                    next_cpu_level = 1;
        !          1312:            }
        !          1313:        }
        !          1314:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1315:        printf ("\tif (!cctrue(%d)) goto didnt_jump;\n", curi->cc);
        !          1316:        if (using_exception_3) {
        !          1317:            printf ("\tif (src & 1) {\n");
        !          1318:            printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
        !          1319:            printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + 2 + (uae_s32)src;\n");
        !          1320:            printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
        !          1321:            printf ("\t}\n");
        !          1322:            need_endlabel = 1;
        !          1323:        }
        !          1324: #ifdef USE_COMPILER
        !          1325:        printf ("\tm68k_setpc_bcc(m68k_getpc() + 2 + (uae_s32)src);\n");
        !          1326: #else
        !          1327:        printf ("\tm68k_incpc ((uae_s32)src + 2);\n");
        !          1328: #endif
        !          1329:        fill_prefetch_0 ();
        !          1330:        printf ("\treturn 5;\n");
        !          1331:        printf ("didnt_jump:;\n");
        !          1332:        need_endlabel = 1;
        !          1333:        insn_n_cycles = curi->size == sz_byte ? 8 : 12;
        !          1334:        break;
        !          1335:     case i_LEA:
        !          1336:        genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
        !          1337:        genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
        !          1338:        genastore ("srca", curi->dmode, "dstreg", curi->size, "dst");
        !          1339:        break;
        !          1340:     case i_PEA:
        !          1341:        genamode (curi->smode, "srcreg", curi->size, "src", 0, 0);
        !          1342:        genamode (Apdi, "7", sz_long, "dst", 2, 0);
        !          1343:        genastore ("srca", Apdi, "7", sz_long, "dst");
        !          1344:        break;
        !          1345:     case i_DBcc:
        !          1346:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1347:        genamode (curi->dmode, "dstreg", curi->size, "offs", 1, 0);
        !          1348: 
        !          1349:        printf ("\tif (!cctrue(%d)) {\n", curi->cc);
        !          1350:        genastore ("(src-1)", curi->smode, "srcreg", curi->size, "src");
        !          1351: 
        !          1352:        printf ("\t\tif (src) {\n");
        !          1353:        if (using_exception_3) {
        !          1354:            printf ("\t\t\tif (offs & 1) {\n");
        !          1355:            printf ("\t\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n");
        !          1356:            printf ("\t\t\tlast_fault_for_exception_3 = m68k_getpc() + 2 + (uae_s32)offs + 2;\n");
        !          1357:            printf ("\t\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr);
        !          1358:            printf ("\t\t}\n");
        !          1359:            need_endlabel = 1;
        !          1360:        }
        !          1361: #ifdef USE_COMPILER
        !          1362:        printf ("\t\t\tm68k_setpc_bcc(m68k_getpc() + (uae_s32)offs + 2);\n");
        !          1363: #else
        !          1364:        printf ("\t\t\tm68k_incpc((uae_s32)offs + 2);\n");
        !          1365: #endif
        !          1366:        fill_prefetch_0 ();
        !          1367:        /* ??? Cycle count is a guess.  */
        !          1368:        printf ("\t\treturn 6;\n");
        !          1369:        printf ("\t\t}\n");
        !          1370:        printf ("\t}\n");
        !          1371:        insn_n_cycles = 12;
        !          1372:        need_endlabel = 1;
        !          1373:        break;
        !          1374:     case i_Scc:
        !          1375:        genamode (curi->smode, "srcreg", curi->size, "src", 2, 0);
        !          1376:        start_brace ();
        !          1377:        printf ("\tint val = cctrue(%d) ? 0xff : 0;\n", curi->cc);
        !          1378:        genastore ("val", curi->smode, "srcreg", curi->size, "src");
        !          1379:        break;
        !          1380:     case i_DIVU:
        !          1381:        printf ("\tuaecptr oldpc = m68k_getpc();\n");
        !          1382:        genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
        !          1383:        genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
        !          1384:        sync_m68k_pc ();
        !          1385:        /* Clear V flag when dividing by zero - Alcatraz Odyssey demo depends
        !          1386:         * on this (actually, it's doing a DIVS).  */
        !          1387:        printf ("\tif (src == 0) { SET_VFLG (0); Exception (5, oldpc); goto %s; } else {\n", endlabelstr);
        !          1388:        printf ("\tuae_u32 newv = (uae_u32)dst / (uae_u32)(uae_u16)src;\n");
        !          1389:        printf ("\tuae_u32 rem = (uae_u32)dst %% (uae_u32)(uae_u16)src;\n");
        !          1390:        /* The N flag appears to be set each time there is an overflow.
        !          1391:         * Weird. */
        !          1392:        printf ("\tif (newv > 0xffff) { SET_VFLG (1); SET_NFLG (1); SET_CFLG (0); } else\n\t{\n");
        !          1393:        genflags (flag_logical, sz_word, "newv", "", "");
        !          1394:        printf ("\tnewv = (newv & 0xffff) | ((uae_u32)rem << 16);\n");
        !          1395:        genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
        !          1396:        printf ("\t}\n");
        !          1397:        printf ("\t}\n");
        !          1398:        insn_n_cycles += 136;
        !          1399:        need_endlabel = 1;
        !          1400:        break;
        !          1401:     case i_DIVS:
        !          1402:        printf ("\tuaecptr oldpc = m68k_getpc();\n");
        !          1403:        genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
        !          1404:        genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0);
        !          1405:        sync_m68k_pc ();
        !          1406:        printf ("\tif (src == 0) { SET_VFLG (0); Exception(5,oldpc); goto %s; } else {\n", endlabelstr);
        !          1407:        printf ("\tuae_s32 newv = (uae_s32)dst / (uae_s32)(uae_s16)src;\n");
        !          1408:        printf ("\tuae_u16 rem = (uae_s32)dst %% (uae_s32)(uae_s16)src;\n");
        !          1409:        printf ("\tif ((newv & 0xffff8000) != 0 && (newv & 0xffff8000) != 0xffff8000) { SET_VFLG (1); SET_NFLG (1); SET_CFLG (0); } else\n\t{\n");
        !          1410:        printf ("\tif (((uae_s16)rem < 0) != ((uae_s32)dst < 0)) rem = -rem;\n");
        !          1411:        genflags (flag_logical, sz_word, "newv", "", "");
        !          1412:        printf ("\tnewv = (newv & 0xffff) | ((uae_u32)rem << 16);\n");
        !          1413:        genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
        !          1414:        printf ("\t}\n");
        !          1415:        printf ("\t}\n");
        !          1416:        insn_n_cycles += 154;
        !          1417:        need_endlabel = 1;
        !          1418:        break;
        !          1419:     case i_MULU:
        !          1420:        genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
        !          1421:        genamode (curi->dmode, "dstreg", sz_word, "dst", 1, 0);
        !          1422:        start_brace ();
        !          1423:        printf ("\tuae_u32 newv = (uae_u32)(uae_u16)dst * (uae_u32)(uae_u16)src;\n");
        !          1424:        genflags (flag_logical, sz_long, "newv", "", "");
        !          1425:        genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
        !          1426:        insn_n_cycles += 66;
        !          1427:        break;
        !          1428:     case i_MULS:
        !          1429:        genamode (curi->smode, "srcreg", sz_word, "src", 1, 0);
        !          1430:        genamode (curi->dmode, "dstreg", sz_word, "dst", 1, 0);
        !          1431:        start_brace ();
        !          1432:        printf ("\tuae_u32 newv = (uae_s32)(uae_s16)dst * (uae_s32)(uae_s16)src;\n");
        !          1433:        genflags (flag_logical, sz_long, "newv", "", "");
        !          1434:        genastore ("newv", curi->dmode, "dstreg", sz_long, "dst");
        !          1435:        insn_n_cycles += 66;
        !          1436:        break;
        !          1437:     case i_CHK:
        !          1438:        printf ("\tuaecptr oldpc = m68k_getpc();\n");
        !          1439:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1440:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1441:        printf ("\tif ((uae_s32)dst < 0) { SET_NFLG (1); Exception(6,oldpc); goto %s; }\n", endlabelstr);
        !          1442:        printf ("\telse if (dst > src) { SET_NFLG (0); Exception(6,oldpc); goto %s; }\n", endlabelstr);
        !          1443:        need_endlabel = 1;
        !          1444:        break;
        !          1445: 
        !          1446:     case i_CHK2:
        !          1447:        printf ("\tuaecptr oldpc = m68k_getpc();\n");
        !          1448:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          1449:        genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
        !          1450:        printf ("\t{uae_s32 upper,lower,reg = regs.regs[(extra >> 12) & 15];\n");
        !          1451:        switch (curi->size) {
        !          1452:        case sz_byte:
        !          1453:            printf ("\tlower=(uae_s32)(uae_s8)get_byte(dsta); upper = (uae_s32)(uae_s8)get_byte(dsta+1);\n");
        !          1454:            printf ("\tif ((extra & 0x8000) == 0) reg = (uae_s32)(uae_s8)reg;\n");
        !          1455:            break;
        !          1456:        case sz_word:
        !          1457:            printf ("\tlower=(uae_s32)(uae_s16)get_word(dsta); upper = (uae_s32)(uae_s16)get_word(dsta+2);\n");
        !          1458:            printf ("\tif ((extra & 0x8000) == 0) reg = (uae_s32)(uae_s16)reg;\n");
        !          1459:            break;
        !          1460:        case sz_long:
        !          1461:            printf ("\tlower=get_long(dsta); upper = get_long(dsta+4);\n");
        !          1462:            break;
        !          1463:        default:
        !          1464:            abort ();
        !          1465:        }
        !          1466:        printf ("\tSET_ZFLG (upper == reg || lower == reg);\n");
        !          1467:        printf ("\tSET_CFLG (lower <= upper ? reg < lower || reg > upper : reg > upper || reg < lower);\n");
        !          1468:        printf ("\tif ((extra & 0x800) && GET_CFLG) { Exception(6,oldpc); goto %s; }\n}\n", endlabelstr);
        !          1469:        need_endlabel = 1;
        !          1470:        break;
        !          1471: 
        !          1472:     case i_ASR:
        !          1473:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1474:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1475:        start_brace ();
        !          1476:        switch (curi->size) {
        !          1477:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1478:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1479:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1480:        default: abort ();
        !          1481:        }
        !          1482:        printf ("\tuae_u32 sign = (%s & val) >> %d;\n", cmask (curi->size), bit_size (curi->size) - 1);
        !          1483:        printf ("\tcnt &= 63;\n");
        !          1484:        printf ("\tCLEAR_CZNV;\n");
        !          1485:        printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
        !          1486:        printf ("\t\tval = %s & (uae_u32)-sign;\n", bit_mask (curi->size));
        !          1487:        printf ("\t\tSET_CFLG (sign);\n");
        !          1488:        duplicate_carry ();
        !          1489:        if (source_is_imm1_8 (curi))
        !          1490:            printf ("\t} else {\n");
        !          1491:        else
        !          1492:            printf ("\t} else if (cnt > 0) {\n");
        !          1493:        printf ("\t\tval >>= cnt - 1;\n");
        !          1494:        printf ("\t\tSET_CFLG (val & 1);\n");
        !          1495:        duplicate_carry ();
        !          1496:        printf ("\t\tval >>= 1;\n");
        !          1497:        printf ("\t\tval |= (%s << (%d - cnt)) & (uae_u32)-sign;\n",
        !          1498:                bit_mask (curi->size),
        !          1499:                bit_size (curi->size));
        !          1500:        printf ("\t\tval &= %s;\n", bit_mask (curi->size));
        !          1501:        printf ("\t}\n");
        !          1502:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1503:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1504:        break;
        !          1505:     case i_ASL:
        !          1506:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1507:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1508:        start_brace ();
        !          1509:        switch (curi->size) {
        !          1510:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1511:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1512:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1513:        default: abort ();
        !          1514:        }
        !          1515:        printf ("\tcnt &= 63;\n");
        !          1516:        printf ("\tCLEAR_CZNV;\n");
        !          1517:        printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
        !          1518:        printf ("\t\tSET_VFLG (val != 0);\n");
        !          1519:        printf ("\t\tSET_CFLG (cnt == %d ? val & 1 : 0);\n",
        !          1520:                bit_size (curi->size));
        !          1521:        duplicate_carry ();
        !          1522:        printf ("\t\tval = 0;\n");
        !          1523:        if (source_is_imm1_8 (curi))
        !          1524:            printf ("\t} else {\n");
        !          1525:        else
        !          1526:            printf ("\t} else if (cnt > 0) {\n");
        !          1527:        printf ("\t\tuae_u32 mask = (%s << (%d - cnt)) & %s;\n",
        !          1528:                bit_mask (curi->size),
        !          1529:                bit_size (curi->size) - 1,
        !          1530:                bit_mask (curi->size));
        !          1531:        printf ("\t\tSET_VFLG ((val & mask) != mask && (val & mask) != 0);\n");
        !          1532:        printf ("\t\tval <<= cnt - 1;\n");
        !          1533:        printf ("\t\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1);
        !          1534:        duplicate_carry ();
        !          1535:        printf ("\t\tval <<= 1;\n");
        !          1536:        printf ("\t\tval &= %s;\n", bit_mask (curi->size));
        !          1537:        printf ("\t}\n");
        !          1538:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1539:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1540:        break;
        !          1541:     case i_LSR:
        !          1542:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1543:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1544:        start_brace ();
        !          1545:        switch (curi->size) {
        !          1546:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1547:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1548:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1549:        default: abort ();
        !          1550:        }
        !          1551:        printf ("\tcnt &= 63;\n");
        !          1552:        printf ("\tCLEAR_CZNV;\n");
        !          1553:        printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
        !          1554:        printf ("\t\tSET_CFLG ((cnt == %d) & (val >> %d));\n",
        !          1555:                bit_size (curi->size), bit_size (curi->size) - 1);
        !          1556:        duplicate_carry ();
        !          1557:        printf ("\t\tval = 0;\n");
        !          1558:        if (source_is_imm1_8 (curi))
        !          1559:            printf ("\t} else {\n");
        !          1560:        else
        !          1561:            printf ("\t} else if (cnt > 0) {\n");
        !          1562:        printf ("\t\tval >>= cnt - 1;\n");
        !          1563:        printf ("\t\tSET_CFLG (val & 1);\n");
        !          1564:        duplicate_carry ();
        !          1565:        printf ("\t\tval >>= 1;\n");
        !          1566:        printf ("\t}\n");
        !          1567:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1568:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1569:        break;
        !          1570:     case i_LSL:
        !          1571:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1572:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1573:        start_brace ();
        !          1574:        switch (curi->size) {
        !          1575:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1576:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1577:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1578:        default: abort ();
        !          1579:        }
        !          1580:        printf ("\tcnt &= 63;\n");
        !          1581:        printf ("\tCLEAR_CZNV;\n");
        !          1582:        printf ("\tif (cnt >= %d) {\n", bit_size (curi->size));
        !          1583:        printf ("\t\tSET_CFLG (cnt == %d ? val & 1 : 0);\n",
        !          1584:                bit_size (curi->size));
        !          1585:        duplicate_carry ();
        !          1586:        printf ("\t\tval = 0;\n");
        !          1587:        if (source_is_imm1_8 (curi))
        !          1588:            printf ("\t} else {\n");
        !          1589:        else
        !          1590:            printf ("\t} else if (cnt > 0) {\n");
        !          1591:        printf ("\t\tval <<= (cnt - 1);\n");
        !          1592:        printf ("\t\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1);
        !          1593:        duplicate_carry ();
        !          1594:        printf ("\t\tval <<= 1;\n");
        !          1595:        printf ("\tval &= %s;\n", bit_mask (curi->size));
        !          1596:        printf ("\t}\n");
        !          1597:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1598:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1599:        break;
        !          1600:     case i_ROL:
        !          1601:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1602:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1603:        start_brace ();
        !          1604:        switch (curi->size) {
        !          1605:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1606:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1607:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1608:        default: abort ();
        !          1609:        }
        !          1610:        printf ("\tcnt &= 63;\n");
        !          1611:        printf ("\tCLEAR_CZNV;\n");
        !          1612:        if (source_is_imm1_8 (curi))
        !          1613:            printf ("{");
        !          1614:        else
        !          1615:            printf ("\tif (cnt > 0) {\n");
        !          1616:        printf ("\tuae_u32 loval;\n");
        !          1617:        printf ("\tcnt &= %d;\n", bit_size (curi->size) - 1);
        !          1618:        printf ("\tloval = val >> (%d - cnt);\n", bit_size (curi->size));
        !          1619:        printf ("\tval <<= cnt;\n");
        !          1620:        printf ("\tval |= loval;\n");
        !          1621:        printf ("\tval &= %s;\n", bit_mask (curi->size));
        !          1622:        printf ("\tSET_CFLG (val & 1);\n");
        !          1623:        printf ("}\n");
        !          1624:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1625:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1626:        break;
        !          1627:     case i_ROR:
        !          1628:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1629:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1630:        start_brace ();
        !          1631:        switch (curi->size) {
        !          1632:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1633:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1634:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1635:        default: abort ();
        !          1636:        }
        !          1637:        printf ("\tcnt &= 63;\n");
        !          1638:        printf ("\tCLEAR_CZNV;\n");
        !          1639:        if (source_is_imm1_8 (curi))
        !          1640:            printf ("{");
        !          1641:        else
        !          1642:            printf ("\tif (cnt > 0) {");
        !          1643:        printf ("\tuae_u32 hival;\n");
        !          1644:        printf ("\tcnt &= %d;\n", bit_size (curi->size) - 1);
        !          1645:        printf ("\thival = val << (%d - cnt);\n", bit_size (curi->size));
        !          1646:        printf ("\tval >>= cnt;\n");
        !          1647:        printf ("\tval |= hival;\n");
        !          1648:        printf ("\tval &= %s;\n", bit_mask (curi->size));
        !          1649:        printf ("\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1);
        !          1650:        printf ("\t}\n");
        !          1651:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1652:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1653:        break;
        !          1654:     case i_ROXL:
        !          1655:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1656:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1657:        start_brace ();
        !          1658:        switch (curi->size) {
        !          1659:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1660:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1661:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1662:        default: abort ();
        !          1663:        }
        !          1664:        printf ("\tcnt &= 63;\n");
        !          1665:        printf ("\tCLEAR_CZNV;\n");
        !          1666:        if (source_is_imm1_8 (curi))
        !          1667:            printf ("{");
        !          1668:        else {
        !          1669:            force_range_for_rox ("cnt", curi->size);
        !          1670:            printf ("\tif (cnt > 0) {\n");
        !          1671:        }
        !          1672:        printf ("\tcnt--;\n");
        !          1673:        printf ("\t{\n\tuae_u32 carry;\n");
        !          1674:        printf ("\tuae_u32 loval = val >> (%d - cnt);\n", bit_size (curi->size) - 1);
        !          1675:        printf ("\tcarry = loval & 1;\n");
        !          1676:        printf ("\tval = (((val << 1) | GET_XFLG) << cnt) | (loval >> 1);\n");
        !          1677:        printf ("\tSET_XFLG (carry);\n");
        !          1678:        printf ("\tval &= %s;\n", bit_mask (curi->size));
        !          1679:        printf ("\t} }\n");
        !          1680:        printf ("\tSET_CFLG (GET_XFLG);\n");
        !          1681:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1682:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1683:        break;
        !          1684:     case i_ROXR:
        !          1685:        genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0);
        !          1686:        genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0);
        !          1687:        start_brace ();
        !          1688:        switch (curi->size) {
        !          1689:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1690:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1691:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1692:        default: abort ();
        !          1693:        }
        !          1694:        printf ("\tcnt &= 63;\n");
        !          1695:        printf ("\tCLEAR_CZNV;\n");
        !          1696:        if (source_is_imm1_8 (curi))
        !          1697:            printf ("{");
        !          1698:        else {
        !          1699:            force_range_for_rox ("cnt", curi->size);
        !          1700:            printf ("\tif (cnt > 0) {\n");
        !          1701:        }
        !          1702:        printf ("\tcnt--;\n");
        !          1703:        printf ("\t{\n\tuae_u32 carry;\n");
        !          1704:        printf ("\tuae_u32 hival = (val << 1) | GET_XFLG;\n");
        !          1705:        printf ("\thival <<= (%d - cnt);\n", bit_size (curi->size) - 1);
        !          1706:        printf ("\tval >>= cnt;\n");
        !          1707:        printf ("\tcarry = val & 1;\n");
        !          1708:        printf ("\tval >>= 1;\n");
        !          1709:        printf ("\tval |= hival;\n");
        !          1710:        printf ("\tSET_XFLG (carry);\n");
        !          1711:        printf ("\tval &= %s;\n", bit_mask (curi->size));
        !          1712:        printf ("\t} }\n");
        !          1713:        printf ("\tSET_CFLG (GET_XFLG);\n");
        !          1714:        genflags (flag_logical_noclobber, curi->size, "val", "", "");
        !          1715:        genastore ("val", curi->dmode, "dstreg", curi->size, "data");
        !          1716:        break;
        !          1717:     case i_ASRW:
        !          1718:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1719:        start_brace ();
        !          1720:        switch (curi->size) {
        !          1721:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1722:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1723:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1724:        default: abort ();
        !          1725:        }
        !          1726:        printf ("\tuae_u32 sign = %s & val;\n", cmask (curi->size));
        !          1727:        printf ("\tuae_u32 cflg = val & 1;\n");
        !          1728:        printf ("\tval = (val >> 1) | sign;\n");
        !          1729:        genflags (flag_logical, curi->size, "val", "", "");
        !          1730:        printf ("\tSET_CFLG (cflg);\n");
        !          1731:        duplicate_carry ();
        !          1732:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1733:        break;
        !          1734:     case i_ASLW:
        !          1735:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1736:        start_brace ();
        !          1737:        switch (curi->size) {
        !          1738:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1739:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1740:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1741:        default: abort ();
        !          1742:        }
        !          1743:        printf ("\tuae_u32 sign = %s & val;\n", cmask (curi->size));
        !          1744:        printf ("\tuae_u32 sign2;\n");
        !          1745:        printf ("\tval <<= 1;\n");
        !          1746:        genflags (flag_logical, curi->size, "val", "", "");
        !          1747:        printf ("\tsign2 = %s & val;\n", cmask (curi->size));
        !          1748:        printf ("\tSET_CFLG (sign != 0);\n");
        !          1749:        duplicate_carry ();
        !          1750: 
        !          1751:        printf ("\tSET_VFLG (GET_VFLG | (sign2 != sign));\n");
        !          1752:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1753:        break;
        !          1754:     case i_LSRW:
        !          1755:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1756:        start_brace ();
        !          1757:        switch (curi->size) {
        !          1758:        case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break;
        !          1759:        case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break;
        !          1760:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1761:        default: abort ();
        !          1762:        }
        !          1763:        printf ("\tuae_u32 carry = val & 1;\n");
        !          1764:        printf ("\tval >>= 1;\n");
        !          1765:        genflags (flag_logical, curi->size, "val", "", "");
        !          1766:        printf ("SET_CFLG (carry);\n");
        !          1767:        duplicate_carry ();
        !          1768:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1769:        break;
        !          1770:     case i_LSLW:
        !          1771:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1772:        start_brace ();
        !          1773:        switch (curi->size) {
        !          1774:        case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
        !          1775:        case sz_word: printf ("\tuae_u16 val = data;\n"); break;
        !          1776:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1777:        default: abort ();
        !          1778:        }
        !          1779:        printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size));
        !          1780:        printf ("\tval <<= 1;\n");
        !          1781:        genflags (flag_logical, curi->size, "val", "", "");
        !          1782:        printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1);
        !          1783:        duplicate_carry ();
        !          1784:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1785:        break;
        !          1786:     case i_ROLW:
        !          1787:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1788:        start_brace ();
        !          1789:        switch (curi->size) {
        !          1790:        case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
        !          1791:        case sz_word: printf ("\tuae_u16 val = data;\n"); break;
        !          1792:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1793:        default: abort ();
        !          1794:        }
        !          1795:        printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size));
        !          1796:        printf ("\tval <<= 1;\n");
        !          1797:        printf ("\tif (carry)  val |= 1;\n");
        !          1798:        genflags (flag_logical, curi->size, "val", "", "");
        !          1799:        printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1);
        !          1800:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1801:        break;
        !          1802:     case i_RORW:
        !          1803:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1804:        start_brace ();
        !          1805:        switch (curi->size) {
        !          1806:        case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
        !          1807:        case sz_word: printf ("\tuae_u16 val = data;\n"); break;
        !          1808:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1809:        default: abort ();
        !          1810:        }
        !          1811:        printf ("\tuae_u32 carry = val & 1;\n");
        !          1812:        printf ("\tval >>= 1;\n");
        !          1813:        printf ("\tif (carry) val |= %s;\n", cmask (curi->size));
        !          1814:        genflags (flag_logical, curi->size, "val", "", "");
        !          1815:        printf ("SET_CFLG (carry);\n");
        !          1816:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1817:        break;
        !          1818:     case i_ROXLW:
        !          1819:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1820:        start_brace ();
        !          1821:        switch (curi->size) {
        !          1822:        case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
        !          1823:        case sz_word: printf ("\tuae_u16 val = data;\n"); break;
        !          1824:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1825:        default: abort ();
        !          1826:        }
        !          1827:        printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size));
        !          1828:        printf ("\tval <<= 1;\n");
        !          1829:        printf ("\tif (GET_XFLG) val |= 1;\n");
        !          1830:        genflags (flag_logical, curi->size, "val", "", "");
        !          1831:        printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1);
        !          1832:        duplicate_carry ();
        !          1833:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1834:        break;
        !          1835:     case i_ROXRW:
        !          1836:        genamode (curi->smode, "srcreg", curi->size, "data", 1, 0);
        !          1837:        start_brace ();
        !          1838:        switch (curi->size) {
        !          1839:        case sz_byte: printf ("\tuae_u8 val = data;\n"); break;
        !          1840:        case sz_word: printf ("\tuae_u16 val = data;\n"); break;
        !          1841:        case sz_long: printf ("\tuae_u32 val = data;\n"); break;
        !          1842:        default: abort ();
        !          1843:        }
        !          1844:        printf ("\tuae_u32 carry = val & 1;\n");
        !          1845:        printf ("\tval >>= 1;\n");
        !          1846:        printf ("\tif (GET_XFLG) val |= %s;\n", cmask (curi->size));
        !          1847:        genflags (flag_logical, curi->size, "val", "", "");
        !          1848:        printf ("SET_CFLG (carry);\n");
        !          1849:        duplicate_carry ();
        !          1850:        genastore ("val", curi->smode, "srcreg", curi->size, "data");
        !          1851:        break;
        !          1852:     case i_MOVEC2:
        !          1853:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1854:        start_brace ();
        !          1855:        printf ("\tint regno = (src >> 12) & 15;\n");
        !          1856:        printf ("\tuae_u32 *regp = regs.regs + regno;\n");
        !          1857:        printf ("\tif (! m68k_movec2(src & 0xFFF, regp)) goto %s;\n", endlabelstr);
        !          1858:        break;
        !          1859:     case i_MOVE2C:
        !          1860:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1861:        start_brace ();
        !          1862:        printf ("\tint regno = (src >> 12) & 15;\n");
        !          1863:        printf ("\tuae_u32 *regp = regs.regs + regno;\n");
        !          1864:        printf ("\tif (! m68k_move2c(src & 0xFFF, regp)) goto %s;\n", endlabelstr);
        !          1865:        break;
        !          1866:     case i_CAS:
        !          1867:     {
        !          1868:        int old_brace_level;
        !          1869:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          1870:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1871:        start_brace ();
        !          1872:        printf ("\tint ru = (src >> 6) & 7;\n");
        !          1873:        printf ("\tint rc = src & 7;\n");
        !          1874:        genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, rc)", "dst");
        !          1875:        printf ("\tif (GET_ZFLG)");
        !          1876:        old_brace_level = n_braces;
        !          1877:        start_brace ();
        !          1878:        genastore ("(m68k_dreg(regs, ru))", curi->dmode, "dstreg", curi->size, "dst");
        !          1879:        pop_braces (old_brace_level);
        !          1880:        printf ("else");
        !          1881:        start_brace ();
        !          1882:        printf ("m68k_dreg(regs, rc) = dst;\n");
        !          1883:        pop_braces (old_brace_level);
        !          1884:     }
        !          1885:     break;
        !          1886:     case i_CAS2:
        !          1887:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          1888:        printf ("\tuae_u32 rn1 = regs.regs[(extra >> 28) & 15];\n");
        !          1889:        printf ("\tuae_u32 rn2 = regs.regs[(extra >> 12) & 15];\n");
        !          1890:        if (curi->size == sz_word) {
        !          1891:            int old_brace_level = n_braces;
        !          1892:            printf ("\tuae_u16 dst1 = get_word(rn1), dst2 = get_word(rn2);\n");
        !          1893:            genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1");
        !          1894:            printf ("\tif (GET_ZFLG) {\n");
        !          1895:            genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, extra & 7)", "dst2");
        !          1896:            printf ("\tif (GET_ZFLG) {\n");
        !          1897:            printf ("\tput_word(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n");
        !          1898:            printf ("\tput_word(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n");
        !          1899:            printf ("\t}}\n");
        !          1900:            pop_braces (old_brace_level);
        !          1901:            printf ("\tif (! GET_ZFLG) {\n");
        !          1902:            printf ("\tm68k_dreg(regs, (extra >> 22) & 7) = (m68k_dreg(regs, (extra >> 22) & 7) & ~0xffff) | (dst1 & 0xffff);\n");
        !          1903:            printf ("\tm68k_dreg(regs, (extra >> 6) & 7) = (m68k_dreg(regs, (extra >> 6) & 7) & ~0xffff) | (dst2 & 0xffff);\n");
        !          1904:            printf ("\t}\n");
        !          1905:        } else {
        !          1906:            int old_brace_level = n_braces;
        !          1907:            printf ("\tuae_u32 dst1 = get_long(rn1), dst2 = get_long(rn2);\n");
        !          1908:            genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1");
        !          1909:            printf ("\tif (GET_ZFLG) {\n");
        !          1910:            genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, extra & 7)", "dst2");
        !          1911:            printf ("\tif (GET_ZFLG) {\n");
        !          1912:            printf ("\tput_long(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n");
        !          1913:            printf ("\tput_long(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n");
        !          1914:            printf ("\t}}\n");
        !          1915:            pop_braces (old_brace_level);
        !          1916:            printf ("\tif (! GET_ZFLG) {\n");
        !          1917:            printf ("\tm68k_dreg(regs, (extra >> 22) & 7) = dst1;\n");
        !          1918:            printf ("\tm68k_dreg(regs, (extra >> 6) & 7) = dst2;\n");
        !          1919:            printf ("\t}\n");
        !          1920:        }
        !          1921:        break;
        !          1922:     case i_MOVES:              /* ignore DFC and SFC because we have no MMU */
        !          1923:     {
        !          1924:        int old_brace_level;
        !          1925:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          1926:        printf ("\tif (extra & 0x800)\n");
        !          1927:        old_brace_level = n_braces;
        !          1928:        start_brace ();
        !          1929:        printf ("\tuae_u32 src = regs.regs[(extra >> 12) & 15];\n");
        !          1930:        genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0);
        !          1931:        genastore ("src", curi->dmode, "dstreg", curi->size, "dst");
        !          1932:        pop_braces (old_brace_level);
        !          1933:        printf ("else");
        !          1934:        start_brace ();
        !          1935:        genamode (curi->dmode, "dstreg", curi->size, "src", 1, 0);
        !          1936:        printf ("\tif (extra & 0x8000) {\n");
        !          1937:        switch (curi->size) {
        !          1938:        case sz_byte: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = (uae_s32)(uae_s8)src;\n"); break;
        !          1939:        case sz_word: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = (uae_s32)(uae_s16)src;\n"); break;
        !          1940:        case sz_long: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = src;\n"); break;
        !          1941:        default: abort ();
        !          1942:        }
        !          1943:        printf ("\t} else {\n");
        !          1944:        genastore ("src", Dreg, "(extra >> 12) & 7", curi->size, "");
        !          1945:        printf ("\t}\n");
        !          1946:        pop_braces (old_brace_level);
        !          1947:     }
        !          1948:     break;
        !          1949:     case i_BKPT:               /* only needed for hardware emulators */
        !          1950:        sync_m68k_pc ();
        !          1951:        printf ("\top_illg(opcode);\n");
        !          1952:        break;
        !          1953:     case i_CALLM:              /* not present in 68030 */
        !          1954:        sync_m68k_pc ();
        !          1955:        printf ("\top_illg(opcode);\n");
        !          1956:        break;
        !          1957:     case i_RTM:                /* not present in 68030 */
        !          1958:        sync_m68k_pc ();
        !          1959:        printf ("\top_illg(opcode);\n");
        !          1960:        break;
        !          1961:     case i_TRAPcc:
        !          1962:        if (curi->smode != am_unknown && curi->smode != am_illg)
        !          1963:            genamode (curi->smode, "srcreg", curi->size, "dummy", 1, 0);
        !          1964:        printf ("\tif (cctrue(%d)) { Exception(7,m68k_getpc()); goto %s; }\n", curi->cc, endlabelstr);
        !          1965:        need_endlabel = 1;
        !          1966:        break;
        !          1967:     case i_DIVL:
        !          1968:        sync_m68k_pc ();
        !          1969:        start_brace ();
        !          1970:        printf ("\tuaecptr oldpc = m68k_getpc();\n");
        !          1971:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          1972:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1973:        sync_m68k_pc ();
        !          1974:        printf ("\tm68k_divl(opcode, dst, extra, oldpc);\n");
        !          1975:        break;
        !          1976:     case i_MULL:
        !          1977:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          1978:        genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0);
        !          1979:        sync_m68k_pc ();
        !          1980:        printf ("\tm68k_mull(opcode, dst, extra);\n");
        !          1981:        break;
        !          1982:     case i_BFTST:
        !          1983:     case i_BFEXTU:
        !          1984:     case i_BFCHG:
        !          1985:     case i_BFEXTS:
        !          1986:     case i_BFCLR:
        !          1987:     case i_BFFFO:
        !          1988:     case i_BFSET:
        !          1989:     case i_BFINS:
        !          1990:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          1991:        genamode (curi->dmode, "dstreg", sz_long, "dst", 2, 0);
        !          1992:        start_brace ();
        !          1993:        printf ("\tuae_s32 offset = extra & 0x800 ? m68k_dreg(regs, (extra >> 6) & 7) : (extra >> 6) & 0x1f;\n");
        !          1994:        printf ("\tint width = (((extra & 0x20 ? m68k_dreg(regs, extra & 7) : extra) -1) & 0x1f) +1;\n");
        !          1995:        if (curi->dmode == Dreg) {
        !          1996:            printf ("\tuae_u32 tmp = m68k_dreg(regs, dstreg) << (offset & 0x1f);\n");
        !          1997:        } else {
        !          1998:            printf ("\tuae_u32 tmp,bf0,bf1;\n");
        !          1999:            printf ("\tdsta += (offset >> 3) | (offset & 0x80000000 ? ~0x1fffffff : 0);\n");
        !          2000:            printf ("\tbf0 = get_long(dsta);bf1 = get_byte(dsta+4) & 0xff;\n");
        !          2001:            printf ("\ttmp = (bf0 << (offset & 7)) | (bf1 >> (8 - (offset & 7)));\n");
        !          2002:        }
        !          2003:        printf ("\ttmp >>= (32 - width);\n");
        !          2004:        printf ("\tSET_NFLG (tmp & (1 << (width-1)) ? 1 : 0);\n");
        !          2005:        printf ("\tSET_ZFLG (tmp == 0); SET_VFLG (0); SET_CFLG (0);\n");
        !          2006:        switch (curi->mnemo) {
        !          2007:        case i_BFTST:
        !          2008:            break;
        !          2009:        case i_BFEXTU:
        !          2010:            printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n");
        !          2011:            break;
        !          2012:        case i_BFCHG:
        !          2013:            printf ("\ttmp = ~tmp;\n");
        !          2014:            break;
        !          2015:        case i_BFEXTS:
        !          2016:            printf ("\tif (GET_NFLG) tmp |= width == 32 ? 0 : (-1 << width);\n");
        !          2017:            printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n");
        !          2018:            break;
        !          2019:        case i_BFCLR:
        !          2020:            printf ("\ttmp = 0;\n");
        !          2021:            break;
        !          2022:        case i_BFFFO:
        !          2023:            printf ("\t{ uae_u32 mask = 1 << (width-1);\n");
        !          2024:            printf ("\twhile (mask) { if (tmp & mask) break; mask >>= 1; offset++; }}\n");
        !          2025:            printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = offset;\n");
        !          2026:            break;
        !          2027:        case i_BFSET:
        !          2028:            printf ("\ttmp = 0xffffffff;\n");
        !          2029:            break;
        !          2030:        case i_BFINS:
        !          2031:            printf ("\ttmp = m68k_dreg(regs, (extra >> 12) & 7);\n");
        !          2032:            break;
        !          2033:        default:
        !          2034:            break;
        !          2035:        }
        !          2036:        if (curi->mnemo == i_BFCHG
        !          2037:            || curi->mnemo == i_BFCLR
        !          2038:            || curi->mnemo == i_BFSET
        !          2039:            || curi->mnemo == i_BFINS)
        !          2040:            {
        !          2041:                printf ("\ttmp <<= (32 - width);\n");
        !          2042:                if (curi->dmode == Dreg) {
        !          2043:                    printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & ((offset & 0x1f) == 0 ? 0 :\n");
        !          2044:                    printf ("\t\t(0xffffffff << (32 - (offset & 0x1f))))) |\n");
        !          2045:                    printf ("\t\t(tmp >> (offset & 0x1f)) |\n");
        !          2046:                    printf ("\t\t(((offset & 0x1f) + width) >= 32 ? 0 :\n");
        !          2047:                    printf (" (m68k_dreg(regs, dstreg) & ((uae_u32)0xffffffff >> ((offset & 0x1f) + width))));\n");
        !          2048:                } else {
        !          2049:                    printf ("\tbf0 = (bf0 & (0xff000000 << (8 - (offset & 7)))) |\n");
        !          2050:                    printf ("\t\t(tmp >> (offset & 7)) |\n");
        !          2051:                    printf ("\t\t(((offset & 7) + width) >= 32 ? 0 :\n");
        !          2052:                    printf ("\t\t (bf0 & ((uae_u32)0xffffffff >> ((offset & 7) + width))));\n");
        !          2053:                    printf ("\tput_long(dsta,bf0 );\n");
        !          2054:                    printf ("\tif (((offset & 7) + width) > 32) {\n");
        !          2055:                    printf ("\t\tbf1 = (bf1 & (0xff >> (width - 32 + (offset & 7)))) |\n");
        !          2056:                    printf ("\t\t\t(tmp << (8 - (offset & 7)));\n");
        !          2057:                    printf ("\t\tput_byte(dsta+4,bf1);\n");
        !          2058:                    printf ("\t}\n");
        !          2059:                }
        !          2060:            }
        !          2061:        break;
        !          2062:     case i_PACK:
        !          2063:        if (curi->smode == Dreg) {
        !          2064:            printf ("\tuae_u16 val = m68k_dreg(regs, srcreg) + %s;\n", gen_nextiword ());
        !          2065:            printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffffff00) | ((val >> 4) & 0xf0) | (val & 0xf);\n");
        !          2066:        } else {
        !          2067:            printf ("\tuae_u16 val;\n");
        !          2068:            printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
        !          2069:            printf ("\tval = (uae_u16)get_byte(m68k_areg(regs, srcreg));\n");
        !          2070:            printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
        !          2071:            printf ("\tval = (val | ((uae_u16)get_byte(m68k_areg(regs, srcreg)) << 8)) + %s;\n", gen_nextiword ());
        !          2072:            printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
        !          2073:            printf ("\tput_byte(m68k_areg(regs, dstreg),((val >> 4) & 0xf0) | (val & 0xf));\n");
        !          2074:        }
        !          2075:        break;
        !          2076:     case i_UNPK:
        !          2077:        if (curi->smode == Dreg) {
        !          2078:            printf ("\tuae_u16 val = m68k_dreg(regs, srcreg);\n");
        !          2079:            printf ("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + %s;\n", gen_nextiword ());
        !          2080:            printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffff0000) | (val & 0xffff);\n");
        !          2081:        } else {
        !          2082:            printf ("\tuae_u16 val;\n");
        !          2083:            printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n");
        !          2084:            printf ("\tval = (uae_u16)get_byte(m68k_areg(regs, srcreg));\n");
        !          2085:            printf ("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + %s;\n", gen_nextiword ());
        !          2086:            printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
        !          2087:            printf ("\tput_byte(m68k_areg(regs, dstreg),val);\n");
        !          2088:            printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n");
        !          2089:            printf ("\tput_byte(m68k_areg(regs, dstreg),val >> 8);\n");
        !          2090:        }
        !          2091:        break;
        !          2092:     case i_TAS:
        !          2093:        genamode (curi->smode, "srcreg", curi->size, "src", 1, 0);
        !          2094:        genflags (flag_logical, curi->size, "src", "", "");
        !          2095:        printf ("\tsrc |= 0x80;\n");
        !          2096:        genastore ("src", curi->smode, "srcreg", curi->size, "src");
        !          2097:        break;
        !          2098:     case i_FPP:
        !          2099:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          2100:        sync_m68k_pc ();
        !          2101:        printf ("\tfpp_opp(opcode,extra);\n");
        !          2102:        break;
        !          2103:     case i_FDBcc:
        !          2104:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          2105:        sync_m68k_pc ();
        !          2106:        printf ("\tfdbcc_opp(opcode,extra);\n");
        !          2107:        break;
        !          2108:     case i_FScc:
        !          2109:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          2110:        sync_m68k_pc ();
        !          2111:        printf ("\tfscc_opp(opcode,extra);\n");
        !          2112:        break;
        !          2113:     case i_FTRAPcc:
        !          2114:        sync_m68k_pc ();
        !          2115:        start_brace ();
        !          2116:        printf ("\tuaecptr oldpc = m68k_getpc();\n");
        !          2117:        if (curi->smode != am_unknown && curi->smode != am_illg)
        !          2118:            genamode (curi->smode, "srcreg", curi->size, "dummy", 1, 0);
        !          2119:        sync_m68k_pc ();
        !          2120:        printf ("\tftrapcc_opp(opcode,oldpc);\n");
        !          2121:        break;
        !          2122:     case i_FBcc:
        !          2123:        sync_m68k_pc ();
        !          2124:        start_brace ();
        !          2125:        printf ("\tuaecptr pc = m68k_getpc();\n");
        !          2126:        genamode (curi->dmode, "srcreg", curi->size, "extra", 1, 0);
        !          2127:        sync_m68k_pc ();
        !          2128:        printf ("\tfbcc_opp(opcode,pc,extra);\n");
        !          2129:        break;
        !          2130:     case i_FSAVE:
        !          2131:        sync_m68k_pc ();
        !          2132:        printf ("\tfsave_opp(opcode);\n");
        !          2133:        break;
        !          2134:     case i_FRESTORE:
        !          2135:        sync_m68k_pc ();
        !          2136:        printf ("\tfrestore_opp(opcode);\n");
        !          2137:        break;
        !          2138: 
        !          2139:      case i_CINVL:
        !          2140:      case i_CINVP:
        !          2141:      case i_CINVA:
        !          2142:      case i_CPUSHL:
        !          2143:      case i_CPUSHP:
        !          2144:      case i_CPUSHA:
        !          2145:        break;
        !          2146:      case i_MOVE16:
        !          2147:        printf ("\tuaecptr mems = m68k_areg(regs, srcreg) & ~15, memd;\n");
        !          2148:        printf ("\tdstreg = (%s >> 12) & 7;\n", gen_nextiword());
        !          2149:        printf ("\tmemd = m68k_areg(regs, dstreg) & ~15;\n");
        !          2150:        printf ("\tput_long(memd, get_long(mems));\n");
        !          2151:        printf ("\tput_long(memd+4, get_long(mems+4));\n");
        !          2152:        printf ("\tput_long(memd+8, get_long(mems+8));\n");
        !          2153:        printf ("\tput_long(memd+12, get_long(mems+12));\n");
        !          2154:        printf ("\tm68k_areg(regs, srcreg) += 16;\n");
        !          2155:        printf ("\tm68k_areg(regs, dstreg) += 16;\n");
        !          2156:        break;
        !          2157: 
        !          2158:     case i_MMUOP:
        !          2159:        genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0);
        !          2160:        sync_m68k_pc ();
        !          2161:        printf ("\tmmu_op(opcode,extra);\n");
        !          2162:        break;
        !          2163:     default:
        !          2164:        abort ();
        !          2165:        break;
        !          2166:     }
        !          2167:     finish_braces ();
        !          2168:     sync_m68k_pc ();
        !          2169: }
        !          2170: 
        !          2171: static void generate_includes (FILE * f)
        !          2172: {
        !          2173:     fprintf (f, "#include \"sysdeps.h\"\n");
        !          2174:     fprintf (f, "#include \"hatari-glue.h\"\n");
        !          2175:     fprintf (f, "#include \"maccess.h\"\n");
        !          2176:     fprintf (f, "#include \"memory.h\"\n");
        !          2177:     fprintf (f, "#include \"newcpu.h\"\n");
        !          2178:     fprintf (f, "#include \"compiler.h\"\n");
        !          2179:     fprintf (f, "#include \"cputbl.h\"\n");
        !          2180: /*
        !          2181:     fprintf (f, "#include \"sysconfig.h\"\n");
        !          2182:     fprintf (f, "#include \"config.h\"\n");
        !          2183:     fprintf (f, "#include \"options.h\"\n");
        !          2184:     fprintf (f, "#include \"custom.h\"\n");
        !          2185: */
        !          2186:     fprintf (f, "#define CPUFUNC(x) x##_ff\n"
        !          2187:             "#ifdef NOFLAGS\n"
        !          2188:             "#include \"noflags.h\"\n"
        !          2189:             "#endif\n");
        !          2190: }
        !          2191: 
        !          2192: static int postfix;
        !          2193: 
        !          2194: static void generate_one_opcode (int rp)
        !          2195: {
        !          2196:     int i;
        !          2197:     uae_u16 smsk, dmsk;
        !          2198:     long int opcode = opcode_map[rp];
        !          2199: 
        !          2200:     if (table68k[opcode].mnemo == i_ILLG
        !          2201:        || table68k[opcode].clev > cpu_level)
        !          2202:        return;
        !          2203: 
        !          2204:     for (i = 0; lookuptab[i].name[0]; i++) {
        !          2205:        if (table68k[opcode].mnemo == lookuptab[i].mnemo)
        !          2206:            break;
        !          2207:     }
        !          2208: 
        !          2209:     if (table68k[opcode].handler != -1)
        !          2210:        return;
        !          2211: 
        !          2212:     if (opcode_next_clev[rp] != cpu_level) {
        !          2213:        fprintf (stblfile, "{ CPUFUNC(op_%lx_%d), 0, %ld }, /* %s */\n", opcode, opcode_last_postfix[rp],
        !          2214:                 opcode, lookuptab[i].name);
        !          2215:        return;
        !          2216:     }
        !          2217:     fprintf (stblfile, "{ CPUFUNC(op_%lx_%d), 0, %ld }, /* %s */\n", opcode, postfix, opcode, lookuptab[i].name);
        !          2218:     fprintf (headerfile, "extern cpuop_func op_%lx_%d_nf;\n", opcode, postfix);
        !          2219:     fprintf (headerfile, "extern cpuop_func op_%lx_%d_ff;\n", opcode, postfix);
        !          2220:     printf ("unsigned long REGPARAM2 CPUFUNC(op_%lx_%d)(uae_u32 opcode) /* %s */\n{\n", opcode, postfix, lookuptab[i].name);
        !          2221: 
        !          2222:     switch (table68k[opcode].stype) {
        !          2223:      case 0: smsk = 7; break;
        !          2224:      case 1: smsk = 255; break;
        !          2225:      case 2: smsk = 15; break;
        !          2226:      case 3: smsk = 7; break;
        !          2227:      case 4: smsk = 7; break;
        !          2228:      case 5: smsk = 63; break;
        !          2229:      default: abort ();
        !          2230:     }
        !          2231:     dmsk = 7;
        !          2232: 
        !          2233:     next_cpu_level = -1;
        !          2234:     if (table68k[opcode].suse
        !          2235:        && table68k[opcode].smode != imm && table68k[opcode].smode != imm0
        !          2236:        && table68k[opcode].smode != imm1 && table68k[opcode].smode != imm2
        !          2237:        && table68k[opcode].smode != absw && table68k[opcode].smode != absl
        !          2238:        && table68k[opcode].smode != PC8r && table68k[opcode].smode != PC16)
        !          2239:     {
        !          2240:        if (table68k[opcode].spos == -1) {
        !          2241:            if (((int) table68k[opcode].sreg) >= 128)
        !          2242:                printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].sreg);
        !          2243:            else
        !          2244:                printf ("\tuae_u32 srcreg = %d;\n", (int) table68k[opcode].sreg);
        !          2245:        } else {
        !          2246:            char source[100];
        !          2247:            int pos = table68k[opcode].spos;
        !          2248: 
        !          2249:            if (pos)
        !          2250:                sprintf (source, "((opcode >> %d) & %d)", pos, smsk);
        !          2251:            else
        !          2252:                sprintf (source, "(opcode & %d)", smsk);
        !          2253: 
        !          2254:            if (table68k[opcode].stype == 3)
        !          2255:                printf ("\tuae_u32 srcreg = imm8_table[%s];\n", source);
        !          2256:            else if (table68k[opcode].stype == 1)
        !          2257:                printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%s;\n", source);
        !          2258:            else
        !          2259:                printf ("\tuae_u32 srcreg = %s;\n", source);
        !          2260:        }
        !          2261:     }
        !          2262:     if (table68k[opcode].duse
        !          2263:        /* Yes, the dmode can be imm, in case of LINK or DBcc */
        !          2264:        && table68k[opcode].dmode != imm && table68k[opcode].dmode != imm0
        !          2265:        && table68k[opcode].dmode != imm1 && table68k[opcode].dmode != imm2
        !          2266:        && table68k[opcode].dmode != absw && table68k[opcode].dmode != absl)
        !          2267:     {
        !          2268:        if (table68k[opcode].dpos == -1) {
        !          2269:            if (((int) table68k[opcode].dreg) >= 128)
        !          2270:                printf ("\tuae_u32 dstreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].dreg);
        !          2271:            else
        !          2272:                printf ("\tuae_u32 dstreg = %d;\n", (int) table68k[opcode].dreg);
        !          2273:        } else {
        !          2274:            int pos = table68k[opcode].dpos;
        !          2275: #if 0
        !          2276:            /* Check that we can do the little endian optimization safely.  */
        !          2277:            if (pos < 8 && (dmsk >> (8 - pos)) != 0)
        !          2278:                abort ();
        !          2279: #endif     
        !          2280:            if (pos)
        !          2281:                printf ("\tuae_u32 dstreg = (opcode >> %d) & %d;\n",
        !          2282:                        pos, dmsk);
        !          2283:            else
        !          2284:                printf ("\tuae_u32 dstreg = opcode & %d;\n", dmsk);
        !          2285:        }
        !          2286:     }
        !          2287:     need_endlabel = 0;
        !          2288:     endlabelno++;
        !          2289:     sprintf (endlabelstr, "endlabel%d", endlabelno);
        !          2290:     gen_opcode (opcode);
        !          2291:     if (need_endlabel)
        !          2292:        printf ("%s: ;\n", endlabelstr);
        !          2293:     printf ("return %d;\n", insn_n_cycles / 2);
        !          2294:     printf ("}\n");
        !          2295:     opcode_next_clev[rp] = next_cpu_level;
        !          2296:     opcode_last_postfix[rp] = postfix;
        !          2297: }
        !          2298: 
        !          2299: static void generate_func (void)
        !          2300: {
        !          2301:     int i, j, rp;
        !          2302: 
        !          2303:     using_prefetch = 0;
        !          2304:     using_exception_3 = 0;
        !          2305:     for (i = 0; i < 6; i++) {
        !          2306:        cpu_level = 4 - i;
        !          2307:        if (i == 5) {
        !          2308:            cpu_level = 0;
        !          2309:            using_prefetch = 1;
        !          2310:            using_exception_3 = 1;
        !          2311:            for (rp = 0; rp < nr_cpuop_funcs; rp++)
        !          2312:                opcode_next_clev[rp] = 0;
        !          2313:        }
        !          2314: 
        !          2315:        postfix = i;
        !          2316:        fprintf (stblfile, "struct cputbl CPUFUNC(op_smalltbl_%d)[] = {\n", postfix);
        !          2317: 
        !          2318:        /* sam: this is for people with low memory (eg. me :)) */
        !          2319:        printf ("\n"
        !          2320:                 "#if !defined(PART_1) && !defined(PART_2) && "
        !          2321:                    "!defined(PART_3) && !defined(PART_4) && "
        !          2322:                    "!defined(PART_5) && !defined(PART_6) && "
        !          2323:                    "!defined(PART_7) && !defined(PART_8)"
        !          2324:                "\n"
        !          2325:                "#define PART_1 1\n"
        !          2326:                "#define PART_2 1\n"
        !          2327:                "#define PART_3 1\n"
        !          2328:                "#define PART_4 1\n"
        !          2329:                "#define PART_5 1\n"
        !          2330:                "#define PART_6 1\n"
        !          2331:                "#define PART_7 1\n"
        !          2332:                "#define PART_8 1\n"
        !          2333:                "#endif\n\n");
        !          2334:        
        !          2335:        rp = 0;
        !          2336:        for(j=1;j<=8;++j) {
        !          2337:                int k = (j*nr_cpuop_funcs)/8;
        !          2338:                printf ("#ifdef PART_%d\n",j);
        !          2339:                for (; rp < k; rp++)
        !          2340:                   generate_one_opcode (rp);
        !          2341:                printf ("#endif\n\n");
        !          2342:        }
        !          2343: 
        !          2344:        fprintf (stblfile, "{ 0, 0, 0 }};\n");
        !          2345:     }
        !          2346: 
        !          2347: }
        !          2348: 
        !          2349: int main (int argc, char **argv)
        !          2350: {
        !          2351:     read_table68k ();
        !          2352:     do_merges ();
        !          2353: 
        !          2354:     opcode_map = (int *) malloc (sizeof (int) * nr_cpuop_funcs);
        !          2355:     opcode_last_postfix = (int *) malloc (sizeof (int) * nr_cpuop_funcs);
        !          2356:     opcode_next_clev = (int *) malloc (sizeof (int) * nr_cpuop_funcs);
        !          2357:     counts = (unsigned long *) malloc (65536 * sizeof (unsigned long));
        !          2358:     read_counts ();
        !          2359: 
        !          2360:     /* It would be a lot nicer to put all in one file (we'd also get rid of
        !          2361:      * cputbl.h that way), but cpuopti can't cope.  That could be fixed, but
        !          2362:      * I don't dare to touch the 68k version.  */
        !          2363: 
        !          2364:     headerfile = fopen ("cputbl.h", "wb");
        !          2365:     stblfile = fopen ("cpustbl.c", "wb");
        !          2366:     freopen ("cpuemu.c", "wb", stdout);
        !          2367: 
        !          2368:     generate_includes (stdout);
        !          2369:     generate_includes (stblfile);
        !          2370: 
        !          2371:     generate_func ();
        !          2372: 
        !          2373:     free (table68k);
        !          2374:     return 0;
        !          2375: }

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