Annotation of uae/src/expansion.c, revision 1.1.1.11

1.1.1.11! root        1:  /*
1.1       root        2:   * UAE - The Un*x Amiga Emulator
                      3:   *
1.1.1.3   root        4:   * AutoConfig (tm) Expansions (ZorroII/III)
                      5:   *
                      6:   * Copyright 1996,1997 Stefan Reinauer <[email protected]>
                      7:   * Copyright 1997 Brian King <[email protected]>
                      8:   *   - added gfxcard code
                      9:   *
1.1       root       10:   */
                     11: 
                     12: #include "sysconfig.h"
                     13: #include "sysdeps.h"
                     14: 
                     15: #include "config.h"
                     16: #include "options.h"
1.1.1.3   root       17: #include "uae.h"
1.1       root       18: #include "memory.h"
                     19: #include "autoconf.h"
1.1.1.3   root       20: #include "picasso96.h"
1.1.1.8   root       21: #include "savestate.h"
1.1       root       22: 
1.1.1.3   root       23: #define MAX_EXPANSION_BOARDS   8
1.1       root       24: 
1.1.1.3   root       25: /* ********************************************************** */
1.1       root       26: /* 00 / 02 */
1.1.1.3   root       27: /* er_Type */
                     28: 
                     29: #define Z2_MEM_8MB     0x00 /* Size of Memory Block */
                     30: #define Z2_MEM_4MB     0x07
                     31: #define Z2_MEM_2MB     0x06
                     32: #define Z2_MEM_1MB     0x05
                     33: #define Z2_MEM_512KB   0x04
                     34: #define Z2_MEM_256KB   0x03
                     35: #define Z2_MEM_128KB   0x02
                     36: #define Z2_MEM_64KB    0x01
                     37: /* extended definitions */
                     38: #define Z2_MEM_16MB    0x00
                     39: #define Z2_MEM_32MB    0x01
                     40: #define Z2_MEM_64MB    0x02
                     41: #define Z2_MEM_128MB   0x03
                     42: #define Z2_MEM_256MB   0x04
                     43: #define Z2_MEM_512MB   0x05
                     44: #define Z2_MEM_1GB     0x06
                     45: 
                     46: #define chainedconfig  0x08 /* Next config is part of the same card */
                     47: #define rom_card       0x10 /* ROM vector is valid */
                     48: #define add_memory     0x20 /* Link RAM into free memory list */
1.1       root       49: 
1.1.1.3   root       50: #define zorroII                0xc0 /* Type of Expansion Card */
                     51: #define zorroIII       0x80
1.1       root       52: 
                     53: /* ********************************************************** */
1.1.1.3   root       54: /* 04 - 06 & 10-16 */
1.1       root       55: 
1.1.1.3   root       56: /* Manufacturer */
                     57: #define commodore_g     513 /* Commodore Braunschweig (Germany) */
                     58: #define commodore       514 /* Commodore West Chester */
                     59: #define gvp            2017 /* GVP */
                     60: #define ass            2102 /* Advanced Systems & Software */
                     61: #define hackers_id     2011 /* Special ID for test cards */
                     62: 
                     63: /* Card Type */
                     64: #define commodore_a2091             3 /* A2091 / A590 Card from C= */
                     65: #define commodore_a2091_ram 10 /* A2091 / A590 Ram on HD-Card */
                     66: #define commodore_a2232            70 /* A2232 Multiport Expansion */
                     67: #define ass_nexus_scsi      1 /* Nexus SCSI Controller */
1.1       root       68: 
1.1.1.3   root       69: #define gvp_series_2_scsi   11
                     70: #define gvp_iv_24_gfx      32
1.1       root       71: 
1.1.1.3   root       72: /* ********************************************************** */
                     73: /* 08 - 0A  */
                     74: /* er_Flags */
                     75: #define Z3_MEM_64KB    0x02
                     76: #define Z3_MEM_128KB   0x03
                     77: #define Z3_MEM_256KB   0x04
                     78: #define Z3_MEM_512KB   0x05
                     79: #define Z3_MEM_1MB     0x06 /* Zorro III card subsize */
                     80: #define Z3_MEM_2MB     0x07
                     81: #define Z3_MEM_4MB     0x08
                     82: #define Z3_MEM_6MB     0x09
                     83: #define Z3_MEM_8MB     0x0a
                     84: #define Z3_MEM_10MB    0x0b
                     85: #define Z3_MEM_12MB    0x0c
                     86: #define Z3_MEM_14MB    0x0d
                     87: #define Z3_MEM_16MB    0x00
                     88: #define Z3_MEM_AUTO    0x01
                     89: #define Z3_MEM_defunct1        0x0e
                     90: #define Z3_MEM_defunct2        0x0f
                     91: 
                     92: #define force_z3       0x10 /* *MUST* be set if card is Z3 */
                     93: #define ext_size       0x20 /* Use extended size table for bits 0-2 of er_Type */
                     94: #define no_shutup      0x40 /* Card cannot receive Shut_up_forever */
                     95: #define care_addr      0x80 /* Adress HAS to be $200000-$9fffff */
1.1       root       96: 
                     97: /* ********************************************************** */
1.1.1.3   root       98: /* 40-42 */
                     99: /* ec_interrupt (unused) */
1.1       root      100: 
1.1.1.3   root      101: #define enable_irq     0x01 /* enable Interrupt */
                    102: #define reset_card     0x04 /* Reset of Expansion Card - must be 0 */
                    103: #define card_int2      0x10 /* READ ONLY: IRQ 2 active */
                    104: #define card_irq6      0x20 /* READ ONLY: IRQ 6 active */
                    105: #define card_irq7      0x40 /* READ ONLY: IRQ 7 active */
                    106: #define does_irq       0x80 /* READ ONLY: Card currently throws IRQ */
1.1       root      107: 
                    108: /* ********************************************************** */
                    109: 
1.1.1.3   root      110: /* ROM defines (DiagVec) */
                    111: 
                    112: #define rom_4bit       (0x00<<14) /* ROM width */
                    113: #define rom_8bit       (0x01<<14)
                    114: #define rom_16bit      (0x02<<14)
                    115: 
                    116: #define rom_never      (0x00<<12) /* Never run Boot Code */
                    117: #define rom_install    (0x01<<12) /* run code at install time */
                    118: #define rom_binddrv    (0x02<<12) /* run code with binddrivers */
                    119: 
                    120: uaecptr ROM_filesys_resname = 0, ROM_filesys_resid = 0;
                    121: uaecptr ROM_filesys_diagentry = 0;
                    122: uaecptr ROM_hardfile_resname = 0, ROM_hardfile_resid = 0;
                    123: uaecptr ROM_hardfile_init = 0;
1.1       root      124: 
                    125: /* ********************************************************** */
                    126: 
1.1.1.3   root      127: static void (*card_init[MAX_EXPANSION_BOARDS]) (void);
                    128: static void (*card_map[MAX_EXPANSION_BOARDS]) (void);
1.1       root      129: 
1.1.1.3   root      130: static int ecard = 0;
1.1       root      131: 
                    132: /* ********************************************************** */
                    133: 
1.1.1.3   root      134: /* Please note: ZorroIII implementation seems to work different
                    135:  * than described in the HRM. This claims that ZorroIII config
                    136:  * address is 0xff000000 while the ZorroII config space starts
1.1.1.11! root      137:  * at 0x00e80000. In reality, both, Z2 and Z3 cards are
1.1.1.3   root      138:  * configured in the ZorroII config space. Kickstart 3.1 doesn't
                    139:  * even do a single read or write access to the ZorroIII space.
                    140:  * The original Amiga include files tell the same as the HRM.
                    141:  * ZorroIII: If you set ext_size in er_Flags and give a Z2-size
                    142:  * in er_Type you can very likely add some ZorroII address space
                    143:  * to a ZorroIII card on a real Amiga. This is not implemented
                    144:  * yet.
                    145:  *  -- Stefan
1.1.1.11! root      146:  *
1.1.1.3   root      147:  * Surprising that 0xFF000000 isn't used. Maybe it depends on the
                    148:  * ROM. Anyway, the HRM says that Z3 cards may appear in Z2 config
                    149:  * space, so what we are doing here is correct.
                    150:  *  -- Bernd
                    151:  */
1.1       root      152: 
1.1.1.3   root      153: /* Autoconfig address space at 0xE80000 */
                    154: static uae_u8 expamem[65536];
1.1       root      155: 
1.1.1.3   root      156: static uae_u8 expamem_lo;
                    157: static uae_u16 expamem_hi;
1.1       root      158: 
1.1.1.2   root      159: /*
1.1.1.3   root      160:  *  Dummy entries to show that there's no card in a slot
1.1.1.2   root      161:  */
1.1       root      162: 
1.1.1.3   root      163: static void expamem_map_clear (void)
                    164: {
1.1.1.10  root      165:     write_log ("expamem_map_clear() got called. Shouldn't happen.\n");
1.1.1.3   root      166: }
                    167: 
                    168: static void expamem_init_clear (void)
                    169: {
                    170:     memset (expamem, 0xff, sizeof expamem);
                    171: }
1.1.1.10  root      172: static void expamem_init_clear2 (void)
                    173: {
                    174:     expamem_init_clear();
                    175:     ecard = MAX_EXPANSION_BOARDS - 1;
                    176: }
1.1       root      177: 
1.1.1.4   root      178: static uae_u32 expamem_lget (uaecptr) REGPARAM;
                    179: static uae_u32 expamem_wget (uaecptr) REGPARAM;
                    180: static uae_u32 expamem_bget (uaecptr) REGPARAM;
                    181: static void expamem_lput (uaecptr, uae_u32) REGPARAM;
                    182: static void expamem_wput (uaecptr, uae_u32) REGPARAM;
                    183: static void expamem_bput (uaecptr, uae_u32) REGPARAM;
1.1       root      184: 
1.1.1.3   root      185: addrbank expamem_bank = {
                    186:     expamem_lget, expamem_wget, expamem_bget,
                    187:     expamem_lput, expamem_wput, expamem_bput,
1.1.1.8   root      188:     default_xlate, default_check, NULL
1.1.1.3   root      189: };
1.1       root      190: 
1.1.1.4   root      191: static uae_u32 REGPARAM2 expamem_lget (uaecptr addr)
1.1       root      192: {
1.1.1.7   root      193:     special_mem |= S_READ;
1.1.1.4   root      194:     write_log ("warning: READ.L from address $%lx \n", addr);
1.1.1.3   root      195:     return 0xfffffffful;
1.1       root      196: }
                    197: 
1.1.1.4   root      198: static uae_u32 REGPARAM2 expamem_wget (uaecptr addr)
1.1       root      199: {
1.1.1.7   root      200:     special_mem |= S_READ;
1.1.1.4   root      201:     write_log ("warning: READ.W from address $%lx \n", addr);
1.1.1.3   root      202:     return 0xffff;
                    203: }
                    204: 
1.1.1.4   root      205: static uae_u32 REGPARAM2 expamem_bget (uaecptr addr)
1.1.1.3   root      206: {
1.1.1.7   root      207:     special_mem |= S_READ;
1.1.1.3   root      208:     addr &= 0xFFFF;
                    209:     return expamem[addr];
1.1       root      210: }
                    211: 
1.1.1.3   root      212: static void REGPARAM2 expamem_write (uaecptr addr, uae_u32 value)
1.1       root      213: {
1.1.1.7   root      214:     special_mem |= S_WRITE;
1.1.1.3   root      215:     addr &= 0xffff;
                    216:     if (addr == 00 || addr == 02 || addr == 0x40 || addr == 0x42) {
                    217:        expamem[addr] = (value & 0xf0);
                    218:        expamem[addr + 2] = (value & 0x0f) << 4;
                    219:     } else {
                    220:        expamem[addr] = ~(value & 0xf0);
                    221:        expamem[addr + 2] = ~((value & 0x0f) << 4);
                    222:     }
                    223: }
                    224: 
1.1.1.4   root      225: static int REGPARAM2 expamem_type (void)
1.1.1.3   root      226: {
                    227:     return ((expamem[0] | expamem[2] >> 4) & 0xc0);
                    228: }
                    229: 
1.1.1.4   root      230: static void REGPARAM2 expamem_lput (uaecptr addr, uae_u32 value)
1.1.1.3   root      231: {
1.1.1.7   root      232:     special_mem |= S_WRITE;
1.1.1.4   root      233:     write_log ("warning: WRITE.L to address $%lx : value $%lx\n", addr, value);
1.1.1.3   root      234: }
                    235: 
1.1.1.4   root      236: static void REGPARAM2 expamem_wput (uaecptr addr, uae_u32 value)
1.1.1.3   root      237: {
1.1.1.7   root      238:     special_mem |= S_WRITE;
1.1.1.3   root      239:     if (expamem_type() != zorroIII)
1.1.1.4   root      240:        write_log ("warning: WRITE.W to address $%lx : value $%x\n", addr, value);
1.1.1.3   root      241:     else {
                    242:        switch (addr & 0xff) {
                    243:         case 0x44:
                    244:            if (expamem_type() == zorroIII) {
                    245:                expamem_hi = value;
                    246:                (*card_map[ecard]) ();
1.1.1.4   root      247:                write_log ("   Card %d (Zorro%s) done.\n", ecard + 1, expamem_type() == 0xc0 ? "II" : "III");
1.1.1.3   root      248:                ++ecard;
1.1.1.6   root      249:                if (ecard < MAX_EXPANSION_BOARDS)
1.1.1.3   root      250:                    (*card_init[ecard]) ();
                    251:                else
1.1.1.10  root      252:                    expamem_init_clear2 ();
1.1.1.3   root      253:            }
                    254:            break;
                    255:        }
                    256:     }
                    257: }
                    258: 
1.1.1.4   root      259: static void REGPARAM2 expamem_bput (uaecptr addr, uae_u32 value)
1.1.1.3   root      260: {
1.1.1.7   root      261:     special_mem |= S_WRITE;
1.1.1.3   root      262:     switch (addr & 0xff) {
                    263:      case 0x30:
                    264:      case 0x32:
                    265:        expamem_hi = 0;
                    266:        expamem_lo = 0;
                    267:        expamem_write (0x48, 0x00);
                    268:        break;
                    269: 
                    270:      case 0x48:
                    271:        if (expamem_type () == zorroII) {
                    272:            expamem_hi = value & 0xFF;
                    273:            (*card_map[ecard]) ();
1.1.1.4   root      274:            write_log ("   Card %d (Zorro%s) done.\n", ecard + 1, expamem_type() == 0xc0 ? "II" : "III");
1.1.1.3   root      275:            ++ecard;
1.1.1.6   root      276:            if (ecard < MAX_EXPANSION_BOARDS)
1.1.1.3   root      277:                (*card_init[ecard]) ();
                    278:            else
1.1.1.10  root      279:                expamem_init_clear2 ();
1.1.1.3   root      280:        } else if (expamem_type() == zorroIII)
                    281:            expamem_lo = value;
                    282:        break;
                    283: 
                    284:      case 0x4a:
                    285:        if (expamem_type () == zorroII)
                    286:            expamem_lo = value;
                    287:        break;
                    288: 
                    289:      case 0x4c:
1.1.1.4   root      290:        write_log ("   Card %d (Zorro %s) had no success.\n", ecard + 1, expamem_type() == 0xc0 ? "II" : "III");
1.1.1.3   root      291:        ++ecard;
1.1.1.6   root      292:        if (ecard < MAX_EXPANSION_BOARDS)
1.1.1.3   root      293:            (*card_init[ecard]) ();
                    294:        else
1.1.1.10  root      295:            expamem_init_clear2 ();
1.1.1.3   root      296:        break;
                    297:     }
                    298: }
                    299: 
                    300: /* ********************************************************** */
                    301: 
                    302: /*
                    303:  *  Fast Memory
                    304:  */
                    305: 
                    306: static uae_u32 fastmem_mask;
                    307: 
1.1.1.4   root      308: static uae_u32 fastmem_lget (uaecptr) REGPARAM;
                    309: static uae_u32 fastmem_wget (uaecptr) REGPARAM;
                    310: static uae_u32 fastmem_bget (uaecptr) REGPARAM;
                    311: static void fastmem_lput (uaecptr, uae_u32) REGPARAM;
                    312: static void fastmem_wput (uaecptr, uae_u32) REGPARAM;
                    313: static void fastmem_bput (uaecptr, uae_u32) REGPARAM;
                    314: static int fastmem_check (uaecptr addr, uae_u32 size) REGPARAM;
                    315: static uae_u8 *fastmem_xlate (uaecptr addr) REGPARAM;
1.1.1.3   root      316: 
                    317: static uae_u32 fastmem_start; /* Determined by the OS */
                    318: static uae_u8 *fastmemory = NULL;
                    319: 
1.1.1.4   root      320: uae_u32 REGPARAM2 fastmem_lget (uaecptr addr)
1.1.1.3   root      321: {
                    322:     uae_u8 *m;
1.1       root      323:     addr -= fastmem_start & fastmem_mask;
                    324:     addr &= fastmem_mask;
                    325:     m = fastmemory + addr;
1.1.1.3   root      326:     return do_get_mem_long ((uae_u32 *)m);
1.1       root      327: }
                    328: 
1.1.1.4   root      329: uae_u32 REGPARAM2 fastmem_wget (uaecptr addr)
1.1       root      330: {
1.1.1.3   root      331:     uae_u8 *m;
1.1       root      332:     addr -= fastmem_start & fastmem_mask;
                    333:     addr &= fastmem_mask;
                    334:     m = fastmemory + addr;
1.1.1.3   root      335:     return do_get_mem_word ((uae_u16 *)m);
1.1       root      336: }
                    337: 
1.1.1.4   root      338: uae_u32 REGPARAM2 fastmem_bget (uaecptr addr)
1.1       root      339: {
                    340:     addr -= fastmem_start & fastmem_mask;
                    341:     addr &= fastmem_mask;
                    342:     return fastmemory[addr];
                    343: }
                    344: 
1.1.1.4   root      345: void REGPARAM2 fastmem_lput (uaecptr addr, uae_u32 l)
1.1       root      346: {
1.1.1.3   root      347:     uae_u8 *m;
1.1       root      348:     addr -= fastmem_start & fastmem_mask;
                    349:     addr &= fastmem_mask;
                    350:     m = fastmemory + addr;
1.1.1.3   root      351:     do_put_mem_long ((uae_u32 *)m, l);
1.1       root      352: }
                    353: 
1.1.1.4   root      354: void REGPARAM2 fastmem_wput (uaecptr addr, uae_u32 w)
1.1       root      355: {
1.1.1.3   root      356:     uae_u8 *m;
1.1       root      357:     addr -= fastmem_start & fastmem_mask;
                    358:     addr &= fastmem_mask;
                    359:     m = fastmemory + addr;
1.1.1.3   root      360:     do_put_mem_word ((uae_u16 *)m, w);
1.1       root      361: }
                    362: 
1.1.1.4   root      363: void REGPARAM2 fastmem_bput (uaecptr addr, uae_u32 b)
1.1       root      364: {
                    365:     addr -= fastmem_start & fastmem_mask;
                    366:     addr &= fastmem_mask;
                    367:     fastmemory[addr] = b;
                    368: }
                    369: 
1.1.1.4   root      370: static int REGPARAM2 fastmem_check (uaecptr addr, uae_u32 size)
1.1       root      371: {
                    372:     addr -= fastmem_start & fastmem_mask;
                    373:     addr &= fastmem_mask;
1.1.1.4   root      374:     return (addr + size) <= allocated_fastmem;
1.1       root      375: }
                    376: 
1.1.1.4   root      377: static uae_u8 REGPARAM2 *fastmem_xlate (uaecptr addr)
1.1       root      378: {
                    379:     addr -= fastmem_start & fastmem_mask;
                    380:     addr &= fastmem_mask;
                    381:     return fastmemory + addr;
                    382: }
                    383: 
                    384: addrbank fastmem_bank = {
                    385:     fastmem_lget, fastmem_wget, fastmem_bget,
                    386:     fastmem_lput, fastmem_wput, fastmem_bput,
1.1.1.8   root      387:     fastmem_xlate, fastmem_check, NULL
1.1       root      388: };
                    389: 
                    390: 
                    391: /*
                    392:  * Filesystem device ROM
1.1.1.3   root      393:  * This is very simple, the Amiga shouldn't be doing things with it.
1.1       root      394:  */
                    395: 
1.1.1.4   root      396: static uae_u32 filesys_lget (uaecptr) REGPARAM;
                    397: static uae_u32 filesys_wget (uaecptr) REGPARAM;
                    398: static uae_u32 filesys_bget (uaecptr) REGPARAM;
                    399: static void filesys_lput (uaecptr, uae_u32) REGPARAM;
                    400: static void filesys_wput (uaecptr, uae_u32) REGPARAM;
                    401: static void filesys_bput (uaecptr, uae_u32) REGPARAM;
1.1       root      402: 
1.1.1.3   root      403: static uae_u32 filesys_start; /* Determined by the OS */
1.1.1.8   root      404: uae_u8 *filesysory;
1.1       root      405: 
1.1.1.4   root      406: uae_u32 REGPARAM2 filesys_lget (uaecptr addr)
1.1       root      407: {
1.1.1.3   root      408:     uae_u8 *m;
1.1.1.7   root      409:     special_mem |= S_READ;
1.1       root      410:     addr -= filesys_start & 65535;
                    411:     addr &= 65535;
                    412:     m = filesysory + addr;
1.1.1.3   root      413:     return do_get_mem_long ((uae_u32 *)m);
1.1       root      414: }
                    415: 
1.1.1.4   root      416: uae_u32 REGPARAM2 filesys_wget (uaecptr addr)
1.1       root      417: {
1.1.1.3   root      418:     uae_u8 *m;
1.1.1.7   root      419:     special_mem |= S_READ;
1.1       root      420:     addr -= filesys_start & 65535;
                    421:     addr &= 65535;
                    422:     m = filesysory + addr;
1.1.1.3   root      423:     return do_get_mem_word ((uae_u16 *)m);
1.1       root      424: }
                    425: 
1.1.1.4   root      426: uae_u32 REGPARAM2 filesys_bget (uaecptr addr)
1.1       root      427: {
1.1.1.7   root      428:     special_mem |= S_READ;
1.1       root      429:     addr -= filesys_start & 65535;
                    430:     addr &= 65535;
                    431:     return filesysory[addr];
                    432: }
                    433: 
1.1.1.4   root      434: static void REGPARAM2 filesys_lput (uaecptr addr, uae_u32 l)
1.1       root      435: {
1.1.1.7   root      436:     special_mem |= S_WRITE;
1.1.1.3   root      437:     write_log ("filesys_lput called\n");
1.1       root      438: }
                    439: 
1.1.1.4   root      440: static void REGPARAM2 filesys_wput (uaecptr addr, uae_u32 w)
1.1       root      441: {
1.1.1.7   root      442:     special_mem |= S_WRITE;
1.1.1.3   root      443:     write_log ("filesys_wput called\n");
1.1       root      444: }
                    445: 
1.1.1.4   root      446: static void REGPARAM2 filesys_bput (uaecptr addr, uae_u32 b)
1.1       root      447: {
1.1.1.7   root      448:     special_mem |= S_WRITE;
1.1.1.10  root      449:     write_log ("filesys_bput called. This usually means that you are using\n");
                    450:     write_log ("Kickstart 1.2. Please give UAE the \"-a\" option next time\n");
                    451:     write_log ("you start it. If you are _not_ using Kickstart 1.2, then\n");
                    452:     write_log ("there's a bug somewhere.\n");
                    453:     write_log ("Exiting...\n");
1.1.1.3   root      454:     uae_quit ();
1.1       root      455: }
                    456: 
                    457: addrbank filesys_bank = {
                    458:     filesys_lget, filesys_wget, filesys_bget,
                    459:     filesys_lput, filesys_wput, filesys_bput,
1.1.1.8   root      460:     default_xlate, default_check, NULL
1.1       root      461: };
                    462: 
1.1.1.3   root      463: /*
                    464:  *  Z3fastmem Memory
                    465:  */
1.1       root      466: 
                    467: 
1.1.1.3   root      468: static uae_u32 z3fastmem_mask;
1.1       root      469: 
1.1.1.4   root      470: static uae_u32 z3fastmem_lget (uaecptr) REGPARAM;
                    471: static uae_u32 z3fastmem_wget (uaecptr) REGPARAM;
                    472: static uae_u32 z3fastmem_bget (uaecptr) REGPARAM;
                    473: static void z3fastmem_lput (uaecptr, uae_u32) REGPARAM;
                    474: static void z3fastmem_wput (uaecptr, uae_u32) REGPARAM;
                    475: static void z3fastmem_bput (uaecptr, uae_u32) REGPARAM;
                    476: static int z3fastmem_check (uaecptr addr, uae_u32 size) REGPARAM;
                    477: static uae_u8 *z3fastmem_xlate (uaecptr addr) REGPARAM;
1.1.1.3   root      478: 
                    479: static uae_u32 z3fastmem_start; /* Determined by the OS */
                    480: static uae_u8 *z3fastmem = NULL;
1.1       root      481: 
1.1.1.4   root      482: uae_u32 REGPARAM2 z3fastmem_lget (uaecptr addr)
1.1       root      483: {
1.1.1.3   root      484:     uae_u8 *m;
                    485:     addr -= z3fastmem_start & z3fastmem_mask;
                    486:     addr &= z3fastmem_mask;
                    487:     m = z3fastmem + addr;
                    488:     return do_get_mem_long ((uae_u32 *)m);
1.1       root      489: }
                    490: 
1.1.1.4   root      491: uae_u32 REGPARAM2 z3fastmem_wget (uaecptr addr)
1.1       root      492: {
1.1.1.3   root      493:     uae_u8 *m;
                    494:     addr -= z3fastmem_start & z3fastmem_mask;
                    495:     addr &= z3fastmem_mask;
                    496:     m = z3fastmem + addr;
                    497:     return do_get_mem_word ((uae_u16 *)m);
1.1       root      498: }
                    499: 
1.1.1.4   root      500: uae_u32 REGPARAM2 z3fastmem_bget (uaecptr addr)
1.1       root      501: {
1.1.1.3   root      502:     addr -= z3fastmem_start & z3fastmem_mask;
                    503:     addr &= z3fastmem_mask;
                    504:     return z3fastmem[addr];
1.1       root      505: }
                    506: 
1.1.1.4   root      507: void REGPARAM2 z3fastmem_lput (uaecptr addr, uae_u32 l)
1.1       root      508: {
1.1.1.3   root      509:     uae_u8 *m;
                    510:     addr -= z3fastmem_start & z3fastmem_mask;
                    511:     addr &= z3fastmem_mask;
                    512:     m = z3fastmem + addr;
                    513:     do_put_mem_long ((uae_u32 *)m, l);
1.1       root      514: }
                    515: 
1.1.1.4   root      516: void REGPARAM2 z3fastmem_wput (uaecptr addr, uae_u32 w)
1.1       root      517: {
1.1.1.3   root      518:     uae_u8 *m;
                    519:     addr -= z3fastmem_start & z3fastmem_mask;
                    520:     addr &= z3fastmem_mask;
                    521:     m = z3fastmem + addr;
                    522:     do_put_mem_word ((uae_u16 *)m, w);
1.1       root      523: }
                    524: 
1.1.1.4   root      525: void REGPARAM2 z3fastmem_bput (uaecptr addr, uae_u32 b)
1.1       root      526: {
1.1.1.3   root      527:     addr -= z3fastmem_start & z3fastmem_mask;
                    528:     addr &= z3fastmem_mask;
                    529:     z3fastmem[addr] = b;
1.1       root      530: }
                    531: 
1.1.1.4   root      532: static int REGPARAM2 z3fastmem_check (uaecptr addr, uae_u32 size)
1.1       root      533: {
1.1.1.3   root      534:     addr -= z3fastmem_start & z3fastmem_mask;
                    535:     addr &= z3fastmem_mask;
1.1.1.4   root      536:     return (addr + size) <= allocated_z3fastmem;
1.1       root      537: }
                    538: 
1.1.1.4   root      539: static uae_u8 REGPARAM2 *z3fastmem_xlate (uaecptr addr)
1.1       root      540: {
1.1.1.3   root      541:     addr -= z3fastmem_start & z3fastmem_mask;
                    542:     addr &= z3fastmem_mask;
                    543:     return z3fastmem + addr;
                    544: }
1.1       root      545: 
1.1.1.3   root      546: addrbank z3fastmem_bank = {
                    547:     z3fastmem_lget, z3fastmem_wget, z3fastmem_bget,
                    548:     z3fastmem_lput, z3fastmem_wput, z3fastmem_bput,
1.1.1.8   root      549:     z3fastmem_xlate, z3fastmem_check, NULL
1.1.1.3   root      550: };
1.1       root      551: 
1.1.1.3   root      552: /* Z3-based UAEGFX-card */
                    553: uae_u32 gfxmem_mask; /* for memory.c */
                    554: uae_u8 *gfxmemory;
                    555: uae_u32 gfxmem_start;
1.1       root      556: 
1.1.1.3   root      557: /* ********************************************************** */
1.1       root      558: 
1.1.1.2   root      559: /*
1.1       root      560:  *     Expansion Card (ZORRO II) for 1/2/4/8 MB of Fast Memory
1.1.1.2   root      561:  */
1.1       root      562: 
1.1.1.3   root      563: static void expamem_map_fastcard (void)
1.1       root      564: {
1.1.1.3   root      565:     fastmem_start = ((expamem_hi | (expamem_lo >> 4)) << 16);
1.1.1.8   root      566:     map_banks (&fastmem_bank, fastmem_start >> 16, allocated_fastmem >> 16, allocated_fastmem);
1.1.1.4   root      567:     write_log ("Fastcard: mapped @$%lx: %dMB fast memory\n", fastmem_start, allocated_fastmem >> 20);
1.1       root      568: }
                    569: 
1.1.1.3   root      570: static void expamem_init_fastcard (void)
1.1       root      571: {
                    572:     expamem_init_clear();
1.1.1.4   root      573:     if (allocated_fastmem == 0x100000)
1.1.1.3   root      574:        expamem_write (0x00, Z2_MEM_1MB + add_memory + zorroII);
1.1.1.4   root      575:     else if (allocated_fastmem == 0x200000)
1.1.1.3   root      576:        expamem_write (0x00, Z2_MEM_2MB + add_memory + zorroII);
1.1.1.4   root      577:     else if (allocated_fastmem == 0x400000)
1.1.1.3   root      578:        expamem_write (0x00, Z2_MEM_4MB + add_memory + zorroII);
1.1.1.4   root      579:     else if (allocated_fastmem == 0x800000)
1.1.1.3   root      580:        expamem_write (0x00, Z2_MEM_8MB + add_memory + zorroII);
1.1       root      581: 
                    582:     expamem_write (0x08, care_addr);
                    583: 
                    584:     expamem_write (0x04, 1);
1.1.1.3   root      585: 
1.1       root      586:     expamem_write (0x10, hackers_id >> 8);
1.1.1.3   root      587:     expamem_write (0x14, hackers_id & 0xff);
1.1       root      588: 
                    589:     expamem_write (0x18, 0x00); /* ser.no. Byte 0 */
                    590:     expamem_write (0x1c, 0x00); /* ser.no. Byte 1 */
                    591:     expamem_write (0x20, 0x00); /* ser.no. Byte 2 */
                    592:     expamem_write (0x24, 0x01); /* ser.no. Byte 3 */
                    593: 
1.1.1.3   root      594:     expamem_write (0x28, 0x00); /* Rom-Offset hi */
                    595:     expamem_write (0x2c, 0x00); /* ROM-Offset lo */
1.1       root      596: 
                    597:     expamem_write (0x40, 0x00); /* Ctrl/Statusreg.*/
                    598: }
                    599: 
1.1.1.3   root      600: /* ********************************************************** */
                    601: 
1.1.1.11! root      602: /*
1.1       root      603:  * Filesystem device
                    604:  */
                    605: 
1.1.1.3   root      606: static void expamem_map_filesys (void)
1.1       root      607: {
1.1.1.3   root      608:     uaecptr a;
                    609: 
                    610:     filesys_start = ((expamem_hi | (expamem_lo >> 4)) << 16);
1.1.1.8   root      611:     map_banks (&filesys_bank, filesys_start >> 16, 1, 0);
1.1.1.5   root      612:     write_log ("Filesystem: mapped memory @$%lx.\n", filesys_start);
1.1.1.3   root      613:     /* 68k code needs to know this. */
                    614:     a = here ();
1.1.1.10  root      615:     org (RTAREA_BASE+0xFFFC);
1.1.1.3   root      616:     dl (filesys_start + 0x2000);
                    617:     org (a);
1.1       root      618: }
                    619: 
1.1.1.3   root      620: static void expamem_init_filesys (void)
1.1       root      621: {
1.1.1.5   root      622:     /* struct DiagArea - the size has to be large enough to store several device ROMTags */
                    623:     uae_u8 diagarea[] = { 0x90, 0x00, /* da_Config, da_Flags */
1.1.1.11! root      624:                          0x02, 0x00, /* da_Size */
        !           625:                          0x01, 0x00, /* da_DiagPoint */
        !           626:                          0x01, 0x06  /* da_BootPoint */
1.1.1.5   root      627:     };
1.1       root      628: 
                    629:     expamem_init_clear();
1.1.1.3   root      630:     expamem_write (0x00, Z2_MEM_64KB | rom_card | zorroII);
1.1       root      631: 
1.1.1.3   root      632:     expamem_write (0x08, no_shutup);
1.1       root      633: 
                    634:     expamem_write (0x04, 2);
                    635:     expamem_write (0x10, hackers_id >> 8);
1.1.1.3   root      636:     expamem_write (0x14, hackers_id & 0xff);
1.1       root      637: 
                    638:     expamem_write (0x18, 0x00); /* ser.no. Byte 0 */
                    639:     expamem_write (0x1c, 0x00); /* ser.no. Byte 1 */
                    640:     expamem_write (0x20, 0x00); /* ser.no. Byte 2 */
                    641:     expamem_write (0x24, 0x01); /* ser.no. Byte 3 */
                    642: 
1.1.1.5   root      643:     /* er_InitDiagVec */
1.1.1.3   root      644:     expamem_write (0x28, 0x10); /* Rom-Offset hi */
                    645:     expamem_write (0x2c, 0x00); /* ROM-Offset lo */
1.1       root      646: 
                    647:     expamem_write (0x40, 0x00); /* Ctrl/Statusreg.*/
                    648: 
                    649:     /* Build a DiagArea */
1.1.1.3   root      650:     memcpy (expamem + 0x1000, diagarea, sizeof diagarea);
                    651: 
1.1       root      652:     /* Call DiagEntry */
1.1.1.3   root      653:     do_put_mem_word ((uae_u16 *)(expamem + 0x1100), 0x4EF9); /* JMP */
                    654:     do_put_mem_long ((uae_u32 *)(expamem + 0x1102), ROM_filesys_diagentry);
                    655: 
1.1       root      656:     /* What comes next is a plain bootblock */
1.1.1.3   root      657:     do_put_mem_word ((uae_u16 *)(expamem + 0x1106), 0x4EF9); /* JMP */
                    658:     do_put_mem_long ((uae_u32 *)(expamem + 0x1108), EXPANSION_bootcode);
                    659: 
                    660:     memcpy (filesysory, expamem, 0x3000);
1.1       root      661: }
                    662: 
1.1.1.2   root      663: /*
1.1.1.3   root      664:  * Zorro III expansion memory
1.1.1.2   root      665:  */
1.1       root      666: 
1.1.1.3   root      667: static void expamem_map_z3fastmem (void)
1.1       root      668: {
1.1.1.3   root      669:     z3fastmem_start = ((expamem_hi | (expamem_lo >> 4)) << 16);
1.1.1.8   root      670:     map_banks (&z3fastmem_bank, z3fastmem_start >> 16, currprefs.z3fastmem_size >> 16,
                    671:               allocated_z3fastmem);
1.1.1.3   root      672: 
1.1.1.4   root      673:     write_log ("Fastmem (32bit): mapped @$%lx: %d MB Zorro III fast memory \n",
                    674:               z3fastmem_start, allocated_z3fastmem / 0x100000);
1.1.1.3   root      675: }
                    676: 
                    677: static void expamem_init_z3fastmem (void)
                    678: {
1.1.1.4   root      679:     int code = (allocated_z3fastmem == 0x100000 ? Z2_MEM_1MB
                    680:                : allocated_z3fastmem == 0x200000 ? Z2_MEM_2MB
                    681:                : allocated_z3fastmem == 0x400000 ? Z2_MEM_4MB
                    682:                : allocated_z3fastmem == 0x800000 ? Z2_MEM_8MB
                    683:                : allocated_z3fastmem == 0x1000000 ? Z2_MEM_16MB
                    684:                : allocated_z3fastmem == 0x2000000 ? Z2_MEM_32MB
                    685:                : allocated_z3fastmem == 0x4000000 ? Z2_MEM_64MB
                    686:                : allocated_z3fastmem == 0x8000000 ? Z2_MEM_128MB
                    687:                : allocated_z3fastmem == 0x10000000 ? Z2_MEM_256MB
                    688:                : allocated_z3fastmem == 0x20000000 ? Z2_MEM_512MB
1.1.1.3   root      689:                : Z2_MEM_1GB);
                    690:     expamem_init_clear();
                    691:     expamem_write (0x00, add_memory | zorroIII | code);
                    692: 
1.1.1.4   root      693:     expamem_write (0x08, no_shutup | force_z3 | (allocated_z3fastmem > 0x800000 ? ext_size : Z3_MEM_AUTO));
1.1.1.3   root      694: 
                    695:     expamem_write (0x04, 3);
                    696: 
                    697:     expamem_write (0x10, hackers_id >> 8);
                    698:     expamem_write (0x14, hackers_id & 0xff);
                    699: 
                    700:     expamem_write (0x18, 0x00); /* ser.no. Byte 0 */
                    701:     expamem_write (0x1c, 0x00); /* ser.no. Byte 1 */
                    702:     expamem_write (0x20, 0x00); /* ser.no. Byte 2 */
                    703:     expamem_write (0x24, 0x01); /* ser.no. Byte 3 */
                    704: 
                    705:     expamem_write (0x28, 0x00); /* Rom-Offset hi */
                    706:     expamem_write (0x2c, 0x00); /* ROM-Offset lo */
                    707: 
                    708:     expamem_write (0x40, 0x00); /* Ctrl/Statusreg.*/
1.1       root      709: }
                    710: 
1.1.1.3   root      711: #ifdef PICASSO96
                    712: /*
                    713:  *  Fake Graphics Card (ZORRO III) - BDK
                    714:  */
                    715: 
                    716: static void expamem_map_gfxcard (void)
1.1       root      717: {
1.1.1.3   root      718:     gfxmem_start = ((expamem_hi | (expamem_lo >> 4)) << 16);
1.1.1.8   root      719:     map_banks (&gfxmem_bank, gfxmem_start >> 16, allocated_gfxmem >> 16, allocated_gfxmem);
1.1.1.4   root      720:     write_log ("UAEGFX-card: mapped @$%lx \n", gfxmem_start);
1.1       root      721: }
1.1.1.3   root      722: 
                    723: static void expamem_init_gfxcard (void)
                    724: {
                    725:     expamem_init_clear();
                    726:     expamem_write (0x00, zorroIII);
                    727: 
1.1.1.4   root      728:     switch (allocated_gfxmem) {
1.1.1.3   root      729:      case 0x00100000:
                    730:        expamem_write (0x08, no_shutup | force_z3 | Z3_MEM_1MB);
                    731:        break;
                    732:      case 0x00200000:
                    733:        expamem_write (0x08, no_shutup | force_z3 | Z3_MEM_2MB);
                    734:        break;
                    735:      case 0x00400000:
                    736:        expamem_write (0x08, no_shutup | force_z3 | Z3_MEM_4MB);
                    737:        break;
                    738:      case 0x00800000:
                    739:        expamem_write (0x08, no_shutup | force_z3 | Z3_MEM_8MB);
                    740:        break;
                    741:     }
                    742: 
                    743:     expamem_write (0x04, 96);
                    744: 
                    745:     expamem_write (0x10, hackers_id >> 8);
                    746:     expamem_write (0x14, hackers_id & 0xff);
                    747: 
                    748:     expamem_write (0x18, 0x00); /* ser.no. Byte 0 */
                    749:     expamem_write (0x1c, 0x00); /* ser.no. Byte 1 */
                    750:     expamem_write (0x20, 0x00); /* ser.no. Byte 2 */
                    751:     expamem_write (0x24, 0x01); /* ser.no. Byte 3 */
                    752: 
                    753:     expamem_write (0x28, 0x00); /* Rom-Offset hi */
                    754:     expamem_write (0x2c, 0x00); /* ROM-Offset lo */
                    755: 
                    756:     expamem_write (0x40, 0x00); /* Ctrl/Statusreg.*/
                    757: }
                    758: #endif
                    759: 
1.1.1.8   root      760: static long fast_filepos, z3_filepos;
                    761: 
                    762: static void allocate_expamem (void)
                    763: {
                    764:     currprefs.fastmem_size = changed_prefs.fastmem_size;
                    765:     currprefs.z3fastmem_size = changed_prefs.z3fastmem_size;
                    766:     currprefs.gfxmem_size = changed_prefs.gfxmem_size;
                    767: 
                    768:     if (allocated_fastmem != currprefs.fastmem_size) {
                    769:        if (fastmemory)
1.1.1.9   root      770:            mapped_free (fastmemory);
1.1.1.8   root      771:        fastmemory = 0;
                    772:        allocated_fastmem = currprefs.fastmem_size;
                    773:        fastmem_mask = allocated_fastmem - 1;
                    774: 
                    775:        if (allocated_fastmem) {
                    776:            fastmemory = mapped_malloc (allocated_fastmem, "fast");
                    777:            if (fastmemory == 0) {
                    778:                write_log ("Out of memory for fastmem card.\n");
                    779:                allocated_fastmem = 0;
                    780:            }
                    781:        }
                    782:     }
1.1.1.11! root      783:     if (currprefs.address_space_24) {
1.1.1.8   root      784:        if (z3fastmem)
1.1.1.9   root      785:            mapped_free (z3fastmem);
1.1.1.8   root      786:        z3fastmem = 0;
1.1.1.11! root      787:        allocated_z3fastmem = 0;
1.1.1.8   root      788:        if (gfxmemory)
1.1.1.9   root      789:            mapped_free (gfxmemory);
1.1.1.8   root      790:        gfxmemory = 0;
1.1.1.11! root      791:        allocated_gfxmem = 0;
        !           792:     } else {
        !           793:        if (allocated_z3fastmem != currprefs.z3fastmem_size) {
        !           794:            if (z3fastmem)
        !           795:                mapped_free (z3fastmem);
        !           796:            z3fastmem = 0;
        !           797: 
        !           798:            allocated_z3fastmem = currprefs.z3fastmem_size;
        !           799:            z3fastmem_mask = allocated_z3fastmem - 1;
        !           800: 
        !           801:            if (allocated_z3fastmem) {
        !           802:                z3fastmem = mapped_malloc (allocated_z3fastmem, "z3");
        !           803:                if (z3fastmem == 0) {
        !           804:                    write_log ("Out of memory for 32 bit fast memory.\n");
        !           805:                    allocated_z3fastmem = 0;
        !           806:                }
        !           807:            }
        !           808:        }
        !           809:        if (allocated_gfxmem != currprefs.gfxmem_size) {
        !           810:            if (gfxmemory)
        !           811:                mapped_free (gfxmemory);
        !           812:            gfxmemory = 0;
        !           813: 
        !           814:            allocated_gfxmem = currprefs.gfxmem_size;
        !           815:            gfxmem_mask = allocated_gfxmem - 1;
        !           816: 
        !           817:            if (allocated_gfxmem) {
        !           818:                gfxmemory = mapped_malloc (allocated_gfxmem, "gfx");
        !           819:                if (gfxmemory == 0) {
        !           820:                    write_log ("Out of memory for graphics card memory\n");
        !           821:                    allocated_gfxmem = 0;
        !           822:                }
1.1.1.8   root      823:            }
                    824:        }
                    825:     }
                    826:     z3fastmem_bank.baseaddr = z3fastmem;
                    827:     fastmem_bank.baseaddr = fastmemory;
                    828: 
                    829:     if (savestate_state == STATE_RESTORE) {
                    830:        if (allocated_fastmem > 0) {
                    831:            fseek (savestate_file, fast_filepos, SEEK_SET);
                    832:            fread (fastmemory, 1, allocated_fastmem, savestate_file);
                    833:            map_banks (&fastmem_bank, fastmem_start >> 16, currprefs.fastmem_size >> 16,
                    834:                       allocated_fastmem);
                    835:        }
                    836:        if (allocated_z3fastmem > 0) {
                    837:            fseek (savestate_file, z3_filepos, SEEK_SET);
                    838:            fread (z3fastmem, 1, allocated_z3fastmem, savestate_file);
                    839:            map_banks (&z3fastmem_bank, z3fastmem_start >> 16, currprefs.z3fastmem_size >> 16,
                    840:                       allocated_z3fastmem);
                    841:        }
                    842:     }
                    843: }
                    844: 
                    845: void expamem_reset (void)
1.1.1.3   root      846: {
1.1.1.8   root      847:     int do_mount = 1;
1.1.1.3   root      848:     int cardno = 0;
                    849:     ecard = 0;
                    850: 
1.1.1.8   root      851:     allocate_expamem ();
                    852: 
                    853:     /* check if Kickstart version is below 1.3 */
                    854:     if (! ersatzkickfile
                    855:        && (/* Kickstart 1.0 & 1.1! */
                    856:            get_word (0xF8000C) == 0xFFFF
                    857:            /* Kickstart < 1.3 */
                    858:            || get_word (0xF8000C) < 34))
                    859:     {
                    860:        /* warn user */
                    861:        write_log ("Kickstart version is below 1.3!  Disabling autoconfig devices.\n");
                    862:        do_mount = 0;
                    863:     }
1.1.1.10  root      864:     /* No need for filesystem stuff if there aren't any mounted.  */
                    865:     if (nr_units (currprefs.mountinfo) == 0)
                    866:        do_mount = 0;
1.1.1.8   root      867: 
1.1.1.3   root      868:     if (fastmemory != NULL) {
                    869:        card_init[cardno] = expamem_init_fastcard;
                    870:        card_map[cardno++] = expamem_map_fastcard;
                    871:     }
                    872:     if (z3fastmem != NULL) {
                    873:        card_init[cardno] = expamem_init_z3fastmem;
                    874:        card_map[cardno++] = expamem_map_z3fastmem;
                    875:     }
                    876: #ifdef PICASSO96
                    877:     if (gfxmemory != NULL) {
                    878:        card_init[cardno] = expamem_init_gfxcard;
                    879:        card_map[cardno++] = expamem_map_gfxcard;
                    880:     }
                    881: #endif
1.1.1.8   root      882:     if (do_mount && ! ersatzkickfile) {
1.1.1.3   root      883:        card_init[cardno] = expamem_init_filesys;
                    884:        card_map[cardno++] = expamem_map_filesys;
                    885:     }
                    886:     while (cardno < MAX_EXPANSION_BOARDS) {
                    887:        card_init[cardno] = expamem_init_clear;
                    888:        card_map[cardno++] = expamem_map_clear;
                    889:     }
                    890: 
                    891:     (*card_init[0]) ();
                    892: }
                    893: 
1.1.1.4   root      894: void expansion_init (void)
1.1.1.3   root      895: {
1.1.1.8   root      896:     z3fastmem = 0;
                    897:     gfxmemory = 0;
                    898:     fastmemory = 0;
                    899:     allocated_z3fastmem = 0;
                    900:     allocated_gfxmem = 0;
                    901:     allocated_fastmem = 0;
                    902: 
                    903:     allocate_expamem ();
                    904: 
                    905:     filesysory = (uae_u8 *) mapped_malloc (0x10000, "filesys");
                    906:     if (!filesysory) {
                    907:        write_log ("virtual memory exhausted (filesysory)!\n");
                    908:        exit (0);
1.1.1.3   root      909:     }
1.1.1.8   root      910:     filesys_bank.baseaddr = (uae_u8*)filesysory;
1.1.1.3   root      911: }
                    912: 
1.1.1.9   root      913: void expansion_cleanup (void)
                    914: {
                    915:     if (fastmemory)
                    916:        mapped_free (fastmemory);
                    917:     if (z3fastmem)
                    918:        mapped_free (z3fastmem);
                    919:     if (gfxmemory)
                    920:        mapped_free (gfxmemory);
                    921:     if (filesysory)
                    922:        mapped_free (filesysory);
                    923:     fastmemory = 0;
                    924:     z3fastmem = 0;
                    925:     gfxmemory = 0;
                    926:     filesysory = 0;
                    927: }
                    928: 
1.1.1.8   root      929: /* State save/restore code.  */
                    930: 
                    931: uae_u8 *save_fram (int *len)
                    932: {
                    933:     *len = allocated_fastmem;
                    934:     return fastmemory;
                    935: }
                    936: 
                    937: uae_u8 *save_zram (int *len)
                    938: {
                    939:     *len = allocated_z3fastmem;
                    940:     return z3fastmem;
                    941: }
                    942: 
                    943: void restore_fram (int len, long filepos)
                    944: {
                    945:     fast_filepos = filepos;
                    946:     changed_prefs.fastmem_size = len;
                    947: }
                    948: 
                    949: void restore_zram (int len, long filepos)
                    950: {
                    951:     z3_filepos = filepos;
                    952:     changed_prefs.z3fastmem_size = len;
                    953: }
                    954: 
1.1.1.11! root      955: uae_u8 *save_expansion (int *len, uae_u8 *dstptr)
1.1.1.8   root      956: {
1.1.1.11! root      957:     static uae_u8 t[20];
        !           958:     uae_u8 *dst = t, *dstbak = t;
        !           959:     if (dstptr)
        !           960:        dst = dstbak = dstptr;
1.1.1.8   root      961:     save_u32 (fastmem_start);
                    962:     save_u32 (z3fastmem_start);
                    963:     *len = 8;
                    964:     return dst;
                    965: }
                    966: 
                    967: uae_u8 *restore_expansion (uae_u8 *src)
                    968: {
                    969:     fastmem_start = restore_u32 ();
                    970:     z3fastmem_start = restore_u32 ();
                    971:     return src;
                    972: }

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