/*
  * UAE - The Un*x Amiga Emulator
  *
  * Memory management
  *
  * (c) 1995 Bernd Schmidt
  */

#include "sysconfig.h"
#include "sysdeps.h"

#include "options.h"
#include "uae.h"
#include "memory.h"
#include "ersatz.h"
#include "zfile.h"
#include "custom.h"
#include "events.h"
#include "newcpu.h"
#include "autoconf.h"
#include "savestate.h"
#include "ar.h"
#include "crc32.h"

#ifdef USE_MAPPED_MEMORY
#include <sys/mman.h>
#endif

#ifdef JIT
int canbang;

/* Set by each memory handler that does not simply access real memory.  */
int special_mem;
#endif

int ersatzkickfile;

#ifdef CD32
extern int cd32_enabled;
#endif
#ifdef CDTV
extern int cdtv_enabled;
#endif

uae_u32 allocated_chipmem;
uae_u32 allocated_fastmem;
uae_u32 allocated_bogomem;
uae_u32 allocated_gfxmem;
uae_u32 allocated_z3fastmem;
uae_u32 allocated_a3000mem;

#ifdef SAVESTATE
static size_t chip_filepos;
static size_t bogo_filepos;
static size_t rom_filepos;
#endif

addrbank *mem_banks[MEMORY_BANKS];

#ifdef JIT
/* This has two functions. It either holds a host address that, when added
   to the 68k address, gives the host address corresponding to that 68k
   address (in which case the value in this array is even), OR it holds the
   same value as mem_banks, for those banks that have baseaddr==0. In that
   case, bit 0 is set (the memory access routines will take care of it).  */

uae_u8 *baseaddr[MEMORY_BANKS];
#endif

uae_u32 chipmem_mask, kickmem_mask, extendedkickmem_mask, bogomem_mask, a3000mem_mask;

static int illegal_count;
/* A dummy bank that only contains zeros */

static uae_u32 dummy_lget (uaecptr) REGPARAM;
static uae_u32 dummy_wget (uaecptr) REGPARAM;
static uae_u32 dummy_bget (uaecptr) REGPARAM;
static void dummy_lput (uaecptr, uae_u32) REGPARAM;
static void dummy_wput (uaecptr, uae_u32) REGPARAM;
static void dummy_bput (uaecptr, uae_u32) REGPARAM;
static int dummy_check (uaecptr addr, uae_u32 size) REGPARAM;

#define MAX_ILG 20

uae_u32 REGPARAM2 dummy_lget (uaecptr addr)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_READ;
#endif
    if (currprefs.illegal_mem) {
	if (illegal_count < MAX_ILG) {
	    illegal_count++;
	    write_log ("Illegal lget at %08lx\n", addr);
	}
    }
    if (currprefs.cpu_level >= 2)
	return 0;
    return (regs.irc << 16) | regs.irc;
}

uae_u32 REGPARAM2 dummy_wget (uaecptr addr)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_READ;
#endif
    if (currprefs.illegal_mem) {
	if (illegal_count < MAX_ILG) {
	    illegal_count++;
	    write_log ("Illegal wget at %08lx\n", addr);
	}
    }
    if (currprefs.cpu_level >= 2)
	return 0;
    return regs.irc;
}

uae_u32 REGPARAM2 dummy_bget (uaecptr addr)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_READ;
#endif
    if (currprefs.illegal_mem) {
	if (illegal_count < MAX_ILG) {
	    illegal_count++;
	    write_log ("Illegal bget at %08lx\n", addr);
	}
    }
    if (currprefs.cpu_level >= 2)
	return 0;
    return (addr & 1) ? regs.irc : regs.irc >> 8;
}

void REGPARAM2 dummy_lput (uaecptr addr, uae_u32 l)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
   if (currprefs.illegal_mem) {
	if (illegal_count < MAX_ILG) {
	    illegal_count++;
	    write_log ("Illegal lput at %08lx\n", addr);
	}
    }
}
void REGPARAM2 dummy_wput (uaecptr addr, uae_u32 w)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    if (currprefs.illegal_mem) {
	if (illegal_count < MAX_ILG) {
	    illegal_count++;
	    write_log ("Illegal wput at %08lx\n", addr);
	}
    }
}
void REGPARAM2 dummy_bput (uaecptr addr, uae_u32 b)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    if (currprefs.illegal_mem) {
	if (illegal_count < MAX_ILG) {
	    illegal_count++;
	    write_log ("Illegal bput at %08lx\n", addr);
	}
    }
}

int REGPARAM2 dummy_check (uaecptr addr, uae_u32 size)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_READ;
#endif
    if (currprefs.illegal_mem) {
	if (illegal_count < MAX_ILG) {
	    illegal_count++;
	    write_log ("Illegal check at %08lx\n", addr);
	}
    }

    return 0;
}

#if defined AUTOCONFIG && defined A3000MBRES
/* A3000 "motherboard resources" bank.  */
static uae_u32 mbres_lget (uaecptr) REGPARAM;
static uae_u32 mbres_wget (uaecptr) REGPARAM;
static uae_u32 mbres_bget (uaecptr) REGPARAM;
static void mbres_lput (uaecptr, uae_u32) REGPARAM;
static void mbres_wput (uaecptr, uae_u32) REGPARAM;
static void mbres_bput (uaecptr, uae_u32) REGPARAM;
static int mbres_check (uaecptr addr, uae_u32 size) REGPARAM;

static int mbres_val = 0;

uae_u32 REGPARAM2 mbres_lget (uaecptr addr)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_READ;
#endif
    if (currprefs.illegal_mem)
	write_log ("Illegal lget at %08lx\n", addr);

    return 0;
}

uae_u32 REGPARAM2 mbres_wget (uaecptr addr)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_READ;
#endif
    if (currprefs.illegal_mem)
	write_log ("Illegal wget at %08lx\n", addr);

    return 0;
}

uae_u32 REGPARAM2 mbres_bget (uaecptr addr)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_READ;
#endif
    if (currprefs.illegal_mem)
	write_log ("Illegal bget at %08lx\n", addr);

    return (addr & 0xFFFF) == 3 ? mbres_val : 0;
}

void REGPARAM2 mbres_lput (uaecptr addr, uae_u32 l)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    if (currprefs.illegal_mem)
	write_log ("Illegal lput at %08lx\n", addr);
}
void REGPARAM2 mbres_wput (uaecptr addr, uae_u32 w)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    if (currprefs.illegal_mem)
	write_log ("Illegal wput at %08lx\n", addr);
}
void REGPARAM2 mbres_bput (uaecptr addr, uae_u32 b)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    if (currprefs.illegal_mem)
	write_log ("Illegal bput at %08lx\n", addr);

    if ((addr & 0xFFFF) == 3)
	mbres_val = b;
}

int REGPARAM2 mbres_check (uaecptr addr, uae_u32 size)
{
    if (currprefs.illegal_mem)
	write_log ("Illegal check at %08lx\n", addr);

    return 0;
}

#endif

/* Chip memory */

uae_u8 *chipmemory;

static int chipmem_check (uaecptr addr, uae_u32 size) REGPARAM;
static uae_u8 *chipmem_xlate (uaecptr addr) REGPARAM;

#if defined AGA && defined CPUEMU_6

/* AGA ce-chipram access */

static void ce2_timeout (void)
{
    wait_cpu_cycle_read (0, -1);
}

uae_u32 REGPARAM2 chipmem_lget_ce2 (uaecptr addr)
{
    uae_u32 *m;

#ifdef JIT
    special_mem |= SPECIAL_MEM_READ;
#endif
    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    m = (uae_u32 *)(chipmemory + addr);
    ce2_timeout ();
    return do_get_mem_long (m);
}

uae_u32 REGPARAM2 chipmem_wget_ce2 (uaecptr addr)
{
    uae_u16 *m;

#ifdef JIT
    special_mem |= SPECIAL_MEM_READ;
#endif
    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    m = (uae_u16 *)(chipmemory + addr);
    ce2_timeout ();
    return do_get_mem_word (m);
}

uae_u32 REGPARAM2 chipmem_bget_ce2 (uaecptr addr)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_READ;
#endif
    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    ce2_timeout ();
    return chipmemory[addr];
}

void REGPARAM2 chipmem_lput_ce2 (uaecptr addr, uae_u32 l)
{
    uae_u32 *m;

#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    m = (uae_u32 *)(chipmemory + addr);
    ce2_timeout ();
    do_put_mem_long (m, l);
}

void REGPARAM2 chipmem_wput_ce2 (uaecptr addr, uae_u32 w)
{
    uae_u16 *m;

#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    m = (uae_u16 *)(chipmemory + addr);
    ce2_timeout ();
    do_put_mem_word (m, w);
}

void REGPARAM2 chipmem_bput_ce2 (uaecptr addr, uae_u32 b)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    ce2_timeout ();
    chipmemory[addr] = b;
}

#endif

uae_u32 REGPARAM2 chipmem_lget (uaecptr addr)
{
    uae_u32 *m;

    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    m = (uae_u32 *)(chipmemory + addr);
    return do_get_mem_long (m);
}

uae_u32 REGPARAM2 chipmem_wget (uaecptr addr)
{
    uae_u16 *m;

    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    m = (uae_u16 *)(chipmemory + addr);
    return do_get_mem_word (m);
}

uae_u32 REGPARAM2 chipmem_bget (uaecptr addr)
{
    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    return chipmemory[addr];
}

void REGPARAM2 chipmem_lput (uaecptr addr, uae_u32 l)
{
    uae_u32 *m;

    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    m = (uae_u32 *)(chipmemory + addr);
    do_put_mem_long (m, l);
}


void REGPARAM2 chipmem_wput (uaecptr addr, uae_u32 w)
{
    uae_u16 *m;

    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    m = (uae_u16 *)(chipmemory + addr);
    do_put_mem_word (m, w);
}

void REGPARAM2 chipmem_bput (uaecptr addr, uae_u32 b)
{
    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    chipmemory[addr] = b;
}

int REGPARAM2 chipmem_check (uaecptr addr, uae_u32 size)
{
    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    return (addr + size) <= allocated_chipmem;
}

uae_u8 REGPARAM2 *chipmem_xlate (uaecptr addr)
{
    addr -= chipmem_start & chipmem_mask;
    addr &= chipmem_mask;
    return chipmemory + addr;
}

/* Slow memory */

static uae_u8 *bogomemory;

static uae_u32 bogomem_lget (uaecptr) REGPARAM;
static uae_u32 bogomem_wget (uaecptr) REGPARAM;
static uae_u32 bogomem_bget (uaecptr) REGPARAM;
static void bogomem_lput (uaecptr, uae_u32) REGPARAM;
static void bogomem_wput (uaecptr, uae_u32) REGPARAM;
static void bogomem_bput (uaecptr, uae_u32) REGPARAM;
static int bogomem_check (uaecptr addr, uae_u32 size) REGPARAM;
static uae_u8 *bogomem_xlate (uaecptr addr) REGPARAM;

uae_u32 REGPARAM2 bogomem_lget (uaecptr addr)
{
    uae_u32 *m;
    addr -= bogomem_start & bogomem_mask;
    addr &= bogomem_mask;
    m = (uae_u32 *)(bogomemory + addr);
    return do_get_mem_long (m);
}

uae_u32 REGPARAM2 bogomem_wget (uaecptr addr)
{
    uae_u16 *m;
    addr -= bogomem_start & bogomem_mask;
    addr &= bogomem_mask;
    m = (uae_u16 *)(bogomemory + addr);
    return do_get_mem_word (m);
}

uae_u32 REGPARAM2 bogomem_bget (uaecptr addr)
{
    addr -= bogomem_start & bogomem_mask;
    addr &= bogomem_mask;
    return bogomemory[addr];
}

void REGPARAM2 bogomem_lput (uaecptr addr, uae_u32 l)
{
    uae_u32 *m;
    addr -= bogomem_start & bogomem_mask;
    addr &= bogomem_mask;
    m = (uae_u32 *)(bogomemory + addr);
    do_put_mem_long (m, l);
}

void REGPARAM2 bogomem_wput (uaecptr addr, uae_u32 w)
{
    uae_u16 *m;
    addr -= bogomem_start & bogomem_mask;
    addr &= bogomem_mask;
    m = (uae_u16 *)(bogomemory + addr);
    do_put_mem_word (m, w);
}

void REGPARAM2 bogomem_bput (uaecptr addr, uae_u32 b)
{
    addr -= bogomem_start & bogomem_mask;
    addr &= bogomem_mask;
    bogomemory[addr] = b;
}

int REGPARAM2 bogomem_check (uaecptr addr, uae_u32 size)
{
    addr -= bogomem_start & bogomem_mask;
    addr &= bogomem_mask;
    return (addr + size) <= allocated_bogomem;
}

uae_u8 REGPARAM2 *bogomem_xlate (uaecptr addr)
{
    addr -= bogomem_start & bogomem_mask;
    addr &= bogomem_mask;
    return bogomemory + addr;
}

#ifdef AUTOCONFIG

/* A3000 motherboard fast memory */

static uae_u8 *a3000memory;

static uae_u32 a3000mem_lget (uaecptr) REGPARAM;
static uae_u32 a3000mem_wget (uaecptr) REGPARAM;
static uae_u32 a3000mem_bget (uaecptr) REGPARAM;
static void a3000mem_lput (uaecptr, uae_u32) REGPARAM;
static void a3000mem_wput (uaecptr, uae_u32) REGPARAM;
static void a3000mem_bput (uaecptr, uae_u32) REGPARAM;
static int a3000mem_check (uaecptr addr, uae_u32 size) REGPARAM;
static uae_u8 *a3000mem_xlate (uaecptr addr) REGPARAM;

uae_u32 REGPARAM2 a3000mem_lget (uaecptr addr)
{
    uae_u32 *m;
    addr -= a3000mem_start & a3000mem_mask;
    addr &= a3000mem_mask;
    m = (uae_u32 *)(a3000memory + addr);
    return do_get_mem_long (m);
}

uae_u32 REGPARAM2 a3000mem_wget (uaecptr addr)
{
    uae_u16 *m;
    addr -= a3000mem_start & a3000mem_mask;
    addr &= a3000mem_mask;
    m = (uae_u16 *)(a3000memory + addr);
    return do_get_mem_word (m);
}

uae_u32 REGPARAM2 a3000mem_bget (uaecptr addr)
{
    addr -= a3000mem_start & a3000mem_mask;
    addr &= a3000mem_mask;
    return a3000memory[addr];
}

void REGPARAM2 a3000mem_lput (uaecptr addr, uae_u32 l)
{
    uae_u32 *m;
    addr -= a3000mem_start & a3000mem_mask;
    addr &= a3000mem_mask;
    m = (uae_u32 *)(a3000memory + addr);
    do_put_mem_long (m, l);
}

void REGPARAM2 a3000mem_wput (uaecptr addr, uae_u32 w)
{
    uae_u16 *m;
    addr -= a3000mem_start & a3000mem_mask;
    addr &= a3000mem_mask;
    m = (uae_u16 *)(a3000memory + addr);
    do_put_mem_word (m, w);
}

void REGPARAM2 a3000mem_bput (uaecptr addr, uae_u32 b)
{
    addr -= a3000mem_start & a3000mem_mask;
    addr &= a3000mem_mask;
    a3000memory[addr] = b;
}

int REGPARAM2 a3000mem_check (uaecptr addr, uae_u32 size)
{
    addr -= a3000mem_start & a3000mem_mask;
    addr &= a3000mem_mask;
    return (addr + size) <= allocated_a3000mem;
}

uae_u8 REGPARAM2 *a3000mem_xlate (uaecptr addr)
{
    addr -= a3000mem_start & a3000mem_mask;
    addr &= a3000mem_mask;
    return a3000memory + addr;
}

#endif

/* Kick memory */

uae_u8 *kickmemory;
uae_u16 kickstart_version;
unsigned int kickmem_size = 0x80000;

/*
 * A1000 kickstart RAM handling
 *
 * RESET instruction unhides boot ROM and disables write protection
 * write access to boot ROM hides boot ROM and enables write protection
 *
 */
static int a1000_kickstart_mode;
static uae_u8 *a1000_bootrom;
static void a1000_handle_kickstart (int mode)
{
    if (mode == 0) {
	a1000_kickstart_mode = 0;
	memcpy (kickmemory, kickmemory + 262144, 262144);
        kickstart_version = (kickmemory[262144 + 12] << 8) | kickmemory[262144 + 13];
    } else {
	a1000_kickstart_mode = 1;
	memset (kickmemory, 0, 262144);
	memcpy (kickmemory, a1000_bootrom, 65536);
	memcpy (kickmemory + 131072, a1000_bootrom, 65536);
        kickstart_version = 0;
    }
}

void a1000_reset (void)
{
    if (a1000_bootrom)
	a1000_handle_kickstart (1);
}

static uae_u32 kickmem_lget (uaecptr) REGPARAM;
static uae_u32 kickmem_wget (uaecptr) REGPARAM;
static uae_u32 kickmem_bget (uaecptr) REGPARAM;
static void kickmem_lput (uaecptr, uae_u32) REGPARAM;
static void kickmem_wput (uaecptr, uae_u32) REGPARAM;
static void kickmem_bput (uaecptr, uae_u32) REGPARAM;
static void kickmem2_lput (uaecptr addr, uae_u32) REGPARAM;
static void kickmem2_wput (uaecptr addr, uae_u32) REGPARAM;
static void kickmem2_bput (uaecptr addr, uae_u32) REGPARAM;
static int kickmem_check (uaecptr addr, uae_u32 size) REGPARAM;
static uae_u8 *kickmem_xlate (uaecptr addr) REGPARAM;

uae_u32 REGPARAM2 kickmem_lget (uaecptr addr)
{
    uae_u32 *m;
    addr -= kickmem_start & kickmem_mask;
    addr &= kickmem_mask;
    m = (uae_u32 *)(kickmemory + addr);
    return do_get_mem_long (m);
}

uae_u32 REGPARAM2 kickmem_wget (uaecptr addr)
{
    uae_u16 *m;
    addr -= kickmem_start & kickmem_mask;
    addr &= kickmem_mask;
    m = (uae_u16 *)(kickmemory + addr);
    return do_get_mem_word (m);
}

uae_u32 REGPARAM2 kickmem_bget (uaecptr addr)
{
    addr -= kickmem_start & kickmem_mask;
    addr &= kickmem_mask;
    return kickmemory[addr];
}

void REGPARAM2 kickmem_lput (uaecptr addr, uae_u32 b)
{
    uae_u32 *m;
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    if (a1000_kickstart_mode) {
	if (addr >= 0xfc0000) {
	    addr -= kickmem_start & kickmem_mask;
	    addr &= kickmem_mask;
	    m = (uae_u32 *)(kickmemory + addr);
	    do_put_mem_long (m, b);
	    return;
	} else
	    a1000_handle_kickstart (0);
    } else if (currprefs.illegal_mem)
	write_log ("Illegal kickmem lput at %08lx\n", addr);
}

void REGPARAM2 kickmem_wput (uaecptr addr, uae_u32 b)
{
    uae_u16 *m;
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    if (a1000_kickstart_mode) {
	if (addr >= 0xfc0000) {
	    addr -= kickmem_start & kickmem_mask;
	    addr &= kickmem_mask;
	    m = (uae_u16 *)(kickmemory + addr);
	    do_put_mem_word (m, b);
	    return;
	} else
	    a1000_handle_kickstart (0);
    } else if (currprefs.illegal_mem)
	write_log ("Illegal kickmem wput at %08lx\n", addr);
}

void REGPARAM2 kickmem_bput (uaecptr addr, uae_u32 b)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    if (a1000_kickstart_mode) {
	if (addr >= 0xfc0000) {
	    addr -= kickmem_start & kickmem_mask;
	    addr &= kickmem_mask;
	    kickmemory[addr] = b;
	    return;
	} else
	    a1000_handle_kickstart (0);
    } else if (currprefs.illegal_mem)
	write_log ("Illegal kickmem lput at %08lx\n", addr);
}

void REGPARAM2 kickmem2_lput (uaecptr addr, uae_u32 l)
{
    uae_u32 *m;
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    addr -= kickmem_start & kickmem_mask;
    addr &= kickmem_mask;
    m = (uae_u32 *)(kickmemory + addr);
    do_put_mem_long (m, l);
}

void REGPARAM2 kickmem2_wput (uaecptr addr, uae_u32 w)
{
    uae_u16 *m;
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    addr -= kickmem_start & kickmem_mask;
    addr &= kickmem_mask;
    m = (uae_u16 *)(kickmemory + addr);
    do_put_mem_word (m, w);
}

void REGPARAM2 kickmem2_bput (uaecptr addr, uae_u32 b)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    addr -= kickmem_start & kickmem_mask;
    addr &= kickmem_mask;
    kickmemory[addr] = b;
}

int REGPARAM2 kickmem_check (uaecptr addr, uae_u32 size)
{
    addr -= kickmem_start & kickmem_mask;
    addr &= kickmem_mask;
    return (addr + size) <= kickmem_size;
}

uae_u8 REGPARAM2 *kickmem_xlate (uaecptr addr)
{
    addr -= kickmem_start & kickmem_mask;
    addr &= kickmem_mask;
    return kickmemory + addr;
}

/* CD32/CDTV extended kick memory */

uae_u8 *extendedkickmemory;
static unsigned int extendedkickmem_size;
static uae_u32 extendedkickmem_start;

#define EXTENDED_ROM_CD32 1
#define EXTENDED_ROM_CDTV 2

#if defined CDTV || defined CD32

static int extromtype (void)
{
    switch (extendedkickmem_size) {
    case 524288:
	return EXTENDED_ROM_CD32;
    case 262144:
	return EXTENDED_ROM_CDTV;
    }
    return 0;
}

static uae_u32 extendedkickmem_lget (uaecptr) REGPARAM;
static uae_u32 extendedkickmem_wget (uaecptr) REGPARAM;
static uae_u32 extendedkickmem_bget (uaecptr) REGPARAM;
static void extendedkickmem_lput (uaecptr, uae_u32) REGPARAM;
static void extendedkickmem_wput (uaecptr, uae_u32) REGPARAM;
static void extendedkickmem_bput (uaecptr, uae_u32) REGPARAM;
static int extendedkickmem_check (uaecptr addr, uae_u32 size) REGPARAM;
static uae_u8 *extendedkickmem_xlate (uaecptr addr) REGPARAM;

uae_u32 REGPARAM2 extendedkickmem_lget (uaecptr addr)
{
    uae_u32 *m;
    addr -= extendedkickmem_start & extendedkickmem_mask;
    addr &= extendedkickmem_mask;
    m = (uae_u32 *)(extendedkickmemory + addr);
    return do_get_mem_long (m);
}

uae_u32 REGPARAM2 extendedkickmem_wget (uaecptr addr)
{
    uae_u16 *m;
    addr -= extendedkickmem_start & extendedkickmem_mask;
    addr &= extendedkickmem_mask;
    m = (uae_u16 *)(extendedkickmemory + addr);
    return do_get_mem_word (m);
}

uae_u32 REGPARAM2 extendedkickmem_bget (uaecptr addr)
{
    addr -= extendedkickmem_start & extendedkickmem_mask;
    addr &= extendedkickmem_mask;
    return extendedkickmemory[addr];
}

void REGPARAM2 extendedkickmem_lput (uaecptr addr, uae_u32 b)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    if (currprefs.illegal_mem)
	write_log ("Illegal extendedkickmem lput at %08lx\n", addr);
}

void REGPARAM2 extendedkickmem_wput (uaecptr addr, uae_u32 b)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    if (currprefs.illegal_mem)
	write_log ("Illegal extendedkickmem wput at %08lx\n", addr);
}

void REGPARAM2 extendedkickmem_bput (uaecptr addr, uae_u32 b)
{
#ifdef JIT
    special_mem |= SPECIAL_MEM_WRITE;
#endif
    if (currprefs.illegal_mem)
	write_log ("Illegal extendedkickmem lput at %08lx\n", addr);
}

int REGPARAM2 extendedkickmem_check (uaecptr addr, uae_u32 size)
{
    addr -= extendedkickmem_start & extendedkickmem_mask;
    addr &= extendedkickmem_mask;
    return (addr + size) <= extendedkickmem_size;
}

uae_u8 REGPARAM2 *extendedkickmem_xlate (uaecptr addr)
{
    addr -= extendedkickmem_start & extendedkickmem_mask;
    addr &= extendedkickmem_mask;
    return extendedkickmemory + addr;
}

#endif

/* Default memory access functions */

int REGPARAM2 default_check (uaecptr a, uae_u32 b)
{
    return 0;
}

static int be_cnt;

uae_u8 REGPARAM2 *default_xlate (uaecptr a)
{
    if (uae_get_state () == UAE_STATE_RUNNING) {
	/* do this only in 68010+ mode, there are some tricky A500 programs.. */
	if (currprefs.cpu_level > 0 || !currprefs.cpu_compatible) {
	    if (be_cnt < 3) {
		int i, j;
		uaecptr a2 = a - 32;
		uaecptr a3 = m68k_getpc (&regs) - 32;
		write_log ("Your Amiga program just did something terribly stupid %p PC=%p\n", a, m68k_getpc (&regs));
		m68k_dumpstate (0, 0);
		for (i = 0; i < 10; i++) {
		    write_log ("%#8.8X ", i >= 5 ? a3 : a2);
		    for (j = 0; j < 16; j += 2) {
			write_log (" %#4.4X", get_word (i >= 5 ? a3 : a2));
			if (i >= 5) a3 +=2; else a2 += 2;
		    }
		    write_log ("\n");
		}
	    }
	    be_cnt++;
	    if (be_cnt > 1000) {
		uae_reset (0);
		be_cnt = 0;
	    } else {
		regs.panic = 1;
		regs.panic_pc = m68k_getpc (&regs);
		regs.panic_addr = a;
		set_special (&regs, SPCFLAG_BRK);
	    }
	}
    }
    return kickmem_xlate (0);	/* So we don't crash. */
}

/* Address banks */

addrbank dummy_bank = {
    dummy_lget, dummy_wget, dummy_bget,
    dummy_lput, dummy_wput, dummy_bput,
    default_xlate, dummy_check, NULL
};

#ifdef AUTOCONFIG
#ifdef A3000MBRES
addrbank mbres_bank = {
    mbres_lget, mbres_wget, mbres_bget,
    mbres_lput, mbres_wput, mbres_bput,
    default_xlate, mbres_check, NULL
};
#endif
#endif

addrbank chipmem_bank = {
    chipmem_lget, chipmem_wget, chipmem_bget,
    chipmem_lput, chipmem_wput, chipmem_bput,
    chipmem_xlate, chipmem_check, NULL
};

#if defined AGA && defined CPUEMU_6
addrbank chipmem_bank_ce2 = {
    chipmem_lget_ce2, chipmem_wget_ce2, chipmem_bget_ce2,
    chipmem_lput_ce2, chipmem_wput_ce2, chipmem_bput_ce2,
    chipmem_xlate, chipmem_check, NULL
};
#endif

addrbank bogomem_bank = {
    bogomem_lget, bogomem_wget, bogomem_bget,
    bogomem_lput, bogomem_wput, bogomem_bput,
    bogomem_xlate, bogomem_check, NULL
};

#ifdef AUTOCONFIG
addrbank a3000mem_bank = {
    a3000mem_lget, a3000mem_wget, a3000mem_bget,
    a3000mem_lput, a3000mem_wput, a3000mem_bput,
    a3000mem_xlate, a3000mem_check, NULL
};
#endif

addrbank kickmem_bank = {
    kickmem_lget, kickmem_wget, kickmem_bget,
    kickmem_lput, kickmem_wput, kickmem_bput,
    kickmem_xlate, kickmem_check, NULL
};

addrbank kickram_bank = {
    kickmem_lget, kickmem_wget, kickmem_bget,
    kickmem2_lput, kickmem2_wput, kickmem2_bput,
    kickmem_xlate, kickmem_check, NULL
};

#if defined CDTV || defined CD32
addrbank extendedkickmem_bank = {
    extendedkickmem_lget, extendedkickmem_wget, extendedkickmem_bget,
    extendedkickmem_lput, extendedkickmem_wput, extendedkickmem_bput,
    extendedkickmem_xlate, extendedkickmem_check, NULL
};
#endif

static int decode_cloanto_rom (uae_u8 *mem, int size, int real_size)
{
    struct zfile *keyf;
    uae_u8 *p;
    long cnt, t;
    int keysize;

    if (strlen (currprefs.keyfile) == 0) {
#ifndef SINGLEFILE
	gui_message ("No filename given for ROM key file and ROM image is an encrypted \"Amiga Forever\" ROM file.\n");
#endif
	return 0;
    } else {
	keyf = zfile_fopen (currprefs.keyfile, "rb");
        if (keyf == 0)  {
#ifdef WIN32
            keyf = zfile_fopen( "..\\shared\\rom\\rom.key", "rb" );
            if( keyf == 0 ) {
#endif
#ifndef SINGLEFILE
                gui_message ("Could not find specified ROM key-file.\n");
#endif
	        return 0;
#ifdef WIN32
            }
#endif
	}

	p = (uae_u8 *)xmalloc (524288);
	keysize = zfile_fread (p, 1, 524288, keyf);
    if (keysize == 0) {
        gui_message ("Error reading keyfile \"%s\"\n", currprefs.keyfile );
        return 0;
    }
	for (t = cnt = 0; cnt < size; cnt++, t = (t + 1) % keysize)  {
	    mem[cnt] ^= p[t];
	    if (real_size == cnt + 1)
		t = keysize - 1;
	}
	zfile_fclose (keyf);
	free (p);
    }
    return 1;
}

static int kickstart_checksum (uae_u8 *mem, int size)
{
    uae_u32 cksum = 0, prevck = 0;
    int i;
    for (i = 0; i < size; i+=4) {
	uae_u32 data = mem[i]*65536*256 + mem[i+1]*65536 + mem[i+2]*256 + mem[i+3];
	cksum += data;
	if (cksum < prevck)
	    cksum++;
	prevck = cksum;
    }
#ifndef SINGLEFILE
    if (cksum != 0xFFFFFFFFul) {
	gui_message("Kickstart checksum incorrect. You probably have a corrupted ROM image.\n");
        return 0;
    }
#endif
    return 1;
}

static int read_kickstart (struct zfile *f, uae_u8 *mem, int size, int dochecksum, int *cloanto_rom)
{
    unsigned char buffer[20];
    int i, cr = 0;

    if (cloanto_rom)
	*cloanto_rom = 0;
    i = zfile_fread (buffer, 1, 11, f);
    if (strncmp ((char *)buffer, "AMIROMTYPE1", 11) != 0) {
	zfile_fseek (f, 0, SEEK_SET);
    } else {
	cr = 1;
    }

    i = zfile_fread (mem, 1, size, f);
    zfile_fclose (f);
    if ((i != 8192 && i != 65536) && i != 131072 && i != 262144 && i != 524288) {
	gui_message ("Error while reading Kickstart.\n");
	return 0;
    }
    if (i == size / 2)
	memcpy (mem + size / 2, mem, size / 2);

    if (cr) {
	if (!decode_cloanto_rom (mem, size, i))
	    return 0;
    }

    if (i == 8192 || i == 65536) {
        a1000_bootrom = malloc (65536);
        memcpy (a1000_bootrom, kickmemory, 65536);
        a1000_handle_kickstart (1);
	i = 524288;
	dochecksum = 0;
    }
    if (dochecksum && i >= 262144) {
	if (!kickstart_checksum (mem, size))
	    return 0;
    }
    if (cloanto_rom)
	*cloanto_rom = cr;

    return i;
}


#if defined CDTV || defined CD32
static int load_extendedkickstart (void)
{
    struct zfile *f;
    int size;

    if (strlen(currprefs.romextfile) == 0)
	return 0;
    f = zfile_fopen (currprefs.romextfile, "rb");
    if (!f) {
	gui_message("No extended Kickstart ROM found");
	return 0;
    }
    zfile_fseek (f, 0, SEEK_END);
    size = zfile_ftell (f);
    if (size > 300000)
	extendedkickmem_size = 524288;
    else
	extendedkickmem_size = 262144;
    zfile_fseek (f, 0, SEEK_SET);
    switch (extromtype ()) {

    case EXTENDED_ROM_CDTV:
	extendedkickmemory = (uae_u8 *) mapped_malloc (extendedkickmem_size, "rom_f0");
	extendedkickmem_bank.baseaddr = (uae_u8 *) extendedkickmemory;
	break;
    case EXTENDED_ROM_CD32:
	extendedkickmemory = (uae_u8 *) mapped_malloc (extendedkickmem_size, "rom_e0");
	extendedkickmem_bank.baseaddr = (uae_u8 *) extendedkickmemory;
	break;
    }
    read_kickstart (f, extendedkickmemory, extendedkickmem_size,  0, 0);
    extendedkickmem_mask = extendedkickmem_size - 1;
    return 1;
}
#endif

static void kickstart_fix_checksum (uae_u8 *mem, int size)
{
    uae_u32 cksum = 0, prevck = 0;
    int i, ch = size == 524288 ? 0x7ffe8 : 0x3e;

    mem[ch] = 0;
    mem[ch + 1] = 0;
    mem[ch + 2] = 0;
    mem[ch + 3] = 0;
    for (i = 0; i < size; i+=4) {
	uae_u32 data = (mem[i] << 24) | (mem[i + 1] << 16) | (mem[i + 2] << 8) | mem[i + 3];
	cksum += data;
	if (cksum < prevck)
	    cksum++;
	prevck = cksum;
    }
    cksum ^= 0xffffffff;
    mem[ch++] = cksum >> 24;
    mem[ch++] = cksum >> 16;
    mem[ch++] = cksum >> 8;
    mem[ch++] = cksum >> 0;
}

static int load_kickstart (void)
{
    struct zfile *f = zfile_fopen (currprefs.romfile, "rb");

    if (f == NULL) {
#if defined TARGET_AMIGAOS && TARGET_M68K
# define USE_UAE_ERSATZ "USE_UAE_ERSATZ"
	if (!getenv (USE_UAE_ERSATZ)) {
	    write_log ("Using current ROM. (create ENV:%s to "
		       "use uae's ROM replacement)\n", USE_UAE_ERSATZ);
	    memcpy (kickmemory, (char*)0x1000000 - kickmem_size, kickmem_size);
	    kickmem_mask = kickmem_size - 1;
	    kickstart_checksum (kickmemory, kickmem_size);
	    goto chk_sum;
	} else
	    return 0;
#else
	return 0;
#endif
    }

    if (f != NULL) {
	int size = read_kickstart (f, kickmemory, 0x80000, 1, &cloanto_rom);
	if (size == 0)
	    return 0;
	kickmem_mask = size - 1;
    }

#if defined TARGET_AMIGAOS && TARGET_M68K
    chk_sum:
#endif

    if (currprefs.kickshifter && kickmem_size >= 524288) {
	/* Patch Kickstart ROM for ShapeShifter - from Christian Bauer.
	 * Changes 'lea $400,a0' and 'lea $1000,a0' to 'lea $3000,a0' for
	 * ShapeShifter compatability.
	*/
	int i;
	uae_u8 kickshift1[] = { 0x41, 0xf8, 0x04, 0x00 };
	uae_u8 kickshift2[] = { 0x41, 0xf8, 0x10, 0x00 };
	uae_u8 kickshift3[] = { 0x43, 0xf8, 0x04, 0x00 };

	for (i = 0x200; i < 0x300; i++) {
	    if (!memcmp (kickmemory + i, kickshift1, sizeof (kickshift1)) ||
	    !memcmp (kickmemory + i, kickshift2, sizeof (kickshift2)) ||
	    !memcmp (kickmemory + i, kickshift3, sizeof (kickshift3))) {
		kickmemory[i + 2] = 0x30;
	        write_log ("Kickstart KickShifted @ %#4.4X\n", i);
	    }
	}
	kickstart_fix_checksum (kickmemory, kickmem_size);
    }
    kickstart_version = (kickmemory[12] << 8) | kickmemory[13];
    return 1;
}

#ifndef NATMEM_OFFSET

uae_u8 *mapped_malloc (size_t s, const char *file)
{
    return malloc (s);
}

void mapped_free (uae_u8 *p)
{
    free (p);
}

#else

#include <sys/ipc.h>
#include <sys/shm.h>
#include <unistd.h>
#include <sys/mman.h>

shmpiece *shm_start;

static void dumplist(void)
{
    shmpiece *x = shm_start;
    write_log ("Start Dump:\n");
    while (x) {
	write_log ("this=%p,Native %p,id %d,prev=%p,next=%p,size=0x%08x\n",
		x, x->native_address, x->id, x->prev, x->next, x->size);
	x = x->next;
    }
    write_log ("End Dump:\n");
}

/*
 * find_shmpiece()
 *
 * Locate the shmpiece node describing the block of memory mapped
 * at the *host* address <base>.
 * Returns a pointer to shmpiece describing that block if found.
 * If nothing is mapped at <base> then, direct memory access will
 * be disabled for the VM and 0 will be returned.
 */
static shmpiece *find_shmpiece (uae_u8 *base)
{
    shmpiece *x = shm_start;

    while (x && x->native_address != base)
	x = x->next;
    if (!x) {
	write_log ("NATMEM: Failure to find mapping at %p\n",base);
//	dumplist ();
	canbang = 0;
	return 0;
    }
    return x;
}

/*
 * delete_shmmaps()
 *
 * Unmap any memory blocks remapped in the VM address range
 * <start> to <start+size> via add_shmmaps().
 * Any anomalies found when processing this range, will cause direct
 * memory access to be disabled in the VM.
 */
static void delete_shmmaps (uae_u32 start, uae_u32 size)
{
    if (!canbang)
	return;

    while (size) {
	uae_u8 *base = mem_banks[bankindex (start)]->baseaddr; // find host address of start of this block of memory
	if (base) {
	    shmpiece *x;
	    base = ((uae_u8*)NATMEM_OFFSET)+start; // get host address it has been remapped at

	    x = find_shmpiece (base); // and locate the corresponding shmpiece node
	    if (!x)
		return;

	    if (x->size > size) {
	        // Bail out: the memory mapped here isn't the size we were expecting
		write_log ("NATMEM: Failure to delete mapping at %08x(size %08x, delsize %08x)\n",start,x->size,size);
		dumplist ();
		canbang = 0;
		return;
	    }
	    shmdt (x->native_address);
	    size -= x->size;
	    start += x->size;
	    if (x->next)
		x->next->prev = x->prev;	/* remove this one from the list */
	    if (x->prev)
		x->prev->next = x->next;
	    else
		shm_start = x->next;
	    free (x);
	} else {
	    /* no host memory mapped at that address - try next bank */
	    size -= 0x10000;
	    start += 0x10000;
	}
    }
}

/* add_shmmaps()
 *
 * Map the block of shared memory attached to bank <what> in host
 * memory so that it can be accessed by the VM using direct memory
 * access at the VM address <start>.
 */
static void add_shmmaps (uae_u32 start, addrbank *what)
{
    shmpiece *x = shm_start;
    shmpiece *y;
    uae_u8 *base = what->baseaddr; // Host address of memory in this bank

    if (!canbang)
	return;
    if (!base)
	return; // Nothing to do. There is no actual host memory attached to this bank.

    x = find_shmpiece (base); // Find the block's current shmpiece node.
    if (!x)
	return;
    y = malloc (sizeof (shmpiece)); // Create another shmpiece node for the new mapping
    *y = *x;
    base = ((uae_u8 *) NATMEM_OFFSET) + start;
    y->native_address = shmat (y->id, base, 0);
    if (y->native_address == (void *) -1) {
	write_log ("NATMEM: Failure to map existing at %08x(%p):%d\n",start,base,errno);
	dumplist ();
	canbang = 0;
	return;
    }
    y->next = shm_start;
    y->prev = NULL;
    if (y->next)
	y->next->prev = y;
    shm_start = y;
}

/*
 * mapped_malloc()
 *
 * Allocate <size> bytes of memory for the VM.
 * If VM supports direct memory access, allocate the memory
 * in such a way (using shared memory) that it can later be
 * remapped to a different host address and thus support direct
 * access via the VM.
 * This will also create a valid shmpiece node describing
 * this block of memory, and add to the global list of shared memory
 * blocks.
 * If allocation of remappable shared memory fails for some reason,
 * direct memory access will be disabled and memory allocated via
 * malloc().
 */
uae_u8 *mapped_malloc (size_t s, const char *file)
{
    int id;
    void *answer;
    shmpiece *x;

    if (!canbang)
	return malloc (s);

#ifdef WIN32
    id = shmget (IPC_PRIVATE, s, 0x1ff, file);
#else
    id = shmget (IPC_PRIVATE, s, 0x1ff);
#endif
    if (id == -1) {
        // Failed to allocate new shared mem segment, so turn
	// off direct memory access and fall back on regular malloc()
	write_log ("NATMEM: shmget() failed with size 0x%08lx. Disabling direct memory access.\n", s);
	canbang = 0;
	return mapped_malloc (s, file);
    }
    answer = shmat (id, 0, 0); // Attach this segment at an arbitrary address - use
                               // add_shmmap() to map it where it needs to be later.
    shmctl (id, IPC_RMID, NULL);
    if (answer != (void *) -1) {
	x = malloc (sizeof (shmpiece));
	x->native_address = answer;
	x->id = id;
	x->size = s;
	x->next = shm_start;
	x->prev = NULL;
	if (x->next)
	    x->next->prev = x;
	shm_start = x;
    } else {
        // Failed to attach segment - turn off direct memory
	// access for the VM and fall back on malloc().
        canbang = 0;
        answer = mapped_malloc (s, file);
    }
    return answer;
}

#ifndef WIN32
void mapped_free (uae_u8 *base)
{
    shmpiece *x;

    if (shm_start && (x = find_shmpiece (base))) {
	shmdt (x->native_address); /* shm segment is already marked as destroyed */
	if (x->next)
	    x->next->prev = x->prev;        /* remove this one from the list */
	if (x->prev)
	    x->prev->next = x->next;
	else
	    shm_start = x->next;
	free (x);
     }
     else
	/* No shmpiece corresponding to address <base> so assume
	 * it was allocated via malloc(). */
	free (base);
}
#endif
#endif

static void init_mem_banks (void)
{
    int i;
    for (i = 0; i < MEMORY_BANKS; i++)
	put_mem_bank (i << 16, &dummy_bank, 0);
// This won't work here after deleting all the bank information - Rich.
//#ifdef NATMEM_OFFSET
//    delete_shmmaps (0, 0xFFFF0000);
//#endif
}

void clearexec (void)
{
    if (chipmemory)
	memset (chipmemory + 4, 0,  4);
}

static void allocate_memory (void)
{
    if (allocated_chipmem != currprefs.chipmem_size) {
	if (chipmemory)
	    mapped_free (chipmemory);
	chipmemory = 0;

	allocated_chipmem = currprefs.chipmem_size;
	chipmem_mask = allocated_chipmem - 1;

	chipmemory = mapped_malloc (allocated_chipmem, "chip");
	if (chipmemory == 0) {
	    write_log ("Fatal error: out of memory for chipmem.\n");
	    allocated_chipmem = 0;
	} else
	clearexec ();
    }

    if (allocated_bogomem != currprefs.bogomem_size) {
	if (bogomemory)
	    mapped_free (bogomemory);
	bogomemory = 0;

	allocated_bogomem = currprefs.bogomem_size;
	bogomem_mask = allocated_bogomem - 1;

	if (allocated_bogomem) {
	    bogomemory = mapped_malloc (allocated_bogomem, "bogo");
	    if (bogomemory == 0) {
		write_log ("Out of memory for bogomem.\n");
		allocated_bogomem = 0;
	    }
	}
	clearexec ();
    }
#ifdef AUTOCONFIG
    if (allocated_a3000mem != currprefs.a3000mem_size) {
	if (a3000memory)
	    mapped_free (a3000memory);
	a3000memory = 0;

	allocated_a3000mem = currprefs.a3000mem_size;
	a3000mem_mask = allocated_a3000mem - 1;

	if (allocated_a3000mem) {
	    a3000memory = mapped_malloc (allocated_a3000mem, "a3000");
	    if (a3000memory == 0) {
		write_log ("Out of memory for a3000mem.\n");
		allocated_a3000mem = 0;
	    }
	}
	clearexec ();
    }
#endif
#ifdef SAVESTATE
    if (savestate_state == STATE_RESTORE) {
	restore_ram (chip_filepos, chipmemory);
	if (allocated_bogomem > 0)
    	    restore_ram (bogo_filepos, bogomemory);
    }
#endif
    chipmem_bank.baseaddr = chipmemory;
#if defined  AGA && CPUEMU_6
    chipmem_bank_ce2.baseaddr = chipmemory;
#endif
    bogomem_bank.baseaddr = bogomemory;
}

void map_overlay (int chip)
{
    int i = allocated_chipmem > 0x200000 ? (allocated_chipmem >> 16) : 32;
    addrbank *cb;

    cb = &chipmem_bank;
#if defined AGA && CPUEMU_6
    if (currprefs.cpu_cycle_exact && currprefs.cpu_level >= 2)
	cb = &chipmem_bank_ce2;
#endif
    if (chip)
	map_banks (cb, 0, i, allocated_chipmem);
    else
	map_banks (&kickmem_bank, 0, i, 0x80000);
    if (savestate_state != STATE_RESTORE && savestate_state != STATE_REWIND)
        m68k_setpc (&regs, m68k_getpc (&regs));
}

void memory_reset (void)
{
    unsigned int bnk;

#ifdef NATMEM_OFFSET
    delete_shmmaps (0, 0xFFFF0000);
#endif

    be_cnt = 0;
    currprefs.chipmem_size = changed_prefs.chipmem_size;
    currprefs.bogomem_size = changed_prefs.bogomem_size;
    currprefs.a3000mem_size = changed_prefs.a3000mem_size;

    init_mem_banks ();
    allocate_memory ();

    if (strlen (currprefs.romfile) == 0 || strcmp (currprefs.romfile, changed_prefs.romfile) != 0
	|| strcmp (currprefs.keyfile, changed_prefs.keyfile) != 0)
    {
	if (strlen (changed_prefs.romfile) == 0) {
#ifdef AUTOCONFIG
	    init_ersatz_rom (kickmemory);
	    kickmem_mask = kickmem_size - 1;
	    ersatzkickfile = 1;
#else
	    gui_message ("No Kickstart image selected\n");
	    uae_restart (-1, NULL);
	    return;
#endif
	} else {
	    ersatzkickfile = 0;
	    memcpy (currprefs.romfile, changed_prefs.romfile, sizeof currprefs.romfile);
	    memcpy (currprefs.keyfile, changed_prefs.keyfile, sizeof currprefs.keyfile);
            if (savestate_state != STATE_RESTORE)
		clearexec ();
#if defined CDTV || defined CD32
            load_extendedkickstart ();
#endif
	    if (!load_kickstart ()) {
		gui_message ("Failed to load Kickstart image '%s'\n", currprefs.romfile);
		uae_restart (-1, NULL);
		return;
	    }
	}
    }

    /* Map custom chips at at 0xC00000 - 0xDFFFFF */
    map_banks (&custom_bank, 0xC0, 32, 0);

    /* Map CIAs at 0xA00000 - 0xBFFFFF */
    map_banks (&cia_bank, 0xA0, 32, 0);

    /* Map "nothing" from top of ZorroII memory to 0x9FFFFF.
     *
     * This should be redundant because the entire memory map
     * has already been initialized to "nothing" above.
     */
    bnk = allocated_chipmem >> 16;
    if (bnk < 0x20 + (currprefs.fastmem_size >> 16))
	bnk = 0x20 + (currprefs.fastmem_size >> 16);
    map_banks (&dummy_bank, bnk, 0xA0 - bnk, 0);

    /* Map "slow" memory from at 0xC00000 to max 0xDBFFFF, or 0xCFFFFF on an AGA machine. */
    if (bogomemory != 0) {
	int t = allocated_bogomem >> 16;
	if (t > 0x1C)
	    t = 0x1C;
	if (t > 0x10 && ((currprefs.chipset_mask & CSMASK_AGA) || currprefs.cpu_level >= 2))
	    t = 0x10;
	map_banks (&bogomem_bank, 0xC0, t, 0);
    }

    /* Real-time clock at 0xDC0000 - 0xDCFFFF. */
    map_banks (&clock_bank, 0xDC, 1, 0);

#ifdef A3000MBRES
    map_banks (&mbres_bank, 0xDE, 1, 0);
#endif

#ifdef AUTOCONFIG
    /* 32-bit memory on A3000 motherboard. */
    if (a3000memory != 0)
	map_banks (&a3000mem_bank, a3000mem_start >> 16, allocated_a3000mem >> 16,
		   allocated_a3000mem);
#endif

    /* Map UAE 'boot rom' at 0xF00000 - 0xF0FFFF. */
    map_banks (&rtarea_bank, RTAREA_BASE >> 16, 1, 0);

    /* Map primary Kickstart at 0xF80000 - 0xFFFFFF. */
    map_banks (&kickmem_bank, 0xF8, 8, 0);
    if (currprefs.maprom)
	map_banks (&kickram_bank, currprefs.maprom >> 16, 8, 0);

    if (a1000_bootrom)
        a1000_handle_kickstart (1);

#ifdef AUTOCONFIG
    /* Map Autoconfig space at 0xE80000 - 0xE8FFFF. */
    map_banks (&expamem_bank, 0xE8, 1, 0);
#endif

    /* Map chip memory from 0x0 to 0x1FFFFF or to size of
     * chip memory if more than 2 MB. */
    map_overlay (1);

#ifdef CDTV
    cdtv_enabled = 0;
#endif
#ifdef CD32
    cd32_enabled = 0;
#endif

#if defined CDTV || CD32
    switch (extromtype ()) {

#ifdef CDTV
    case EXTENDED_ROM_CDTV:
	map_banks (&extendedkickmem_bank, 0xF0, 4, 0);
	cdtv_enabled = 1;
	break;
#endif
#ifdef CD32
    case EXTENDED_ROM_CD32:
	map_banks (&extendedkickmem_bank, 0xE0, 8, 0);
	cd32_enabled = 1;
	break;
#endif
    default:
#else
    {
#endif
	if (cloanto_rom && !currprefs.maprom)
	    map_banks (&kickmem_bank, 0xE0, 8, 0);
    }

#ifdef ACTION_REPLAY
    action_replay_memory_reset();
    #ifdef ACTION_REPLAY_HRTMON
    hrtmon_map_banks();
    #endif

    #ifndef ACTION_REPLAY_HIDE_CARTRIDGES
    #ifdef ACTION_REPLAY
    action_replay_map_banks();
    #endif
    #endif
#endif
}

void memory_init (void)
{
    allocated_chipmem = 0;
    allocated_bogomem = 0;
    kickmemory = 0;
    extendedkickmemory = 0;
    extendedkickmem_size = 0;
    chipmemory = 0;
#ifdef AUTOCONFIG
    allocated_a3000mem = 0;
    a3000memory = 0;
#endif
    bogomemory = 0;

    kickmemory = mapped_malloc (kickmem_size, "kick");
    memset (kickmemory, 0, kickmem_size);
    kickmem_bank.baseaddr = kickmemory;
    currprefs.romfile[0] = 0;
    currprefs.keyfile[0] = 0;
#ifdef AUTOCONFIG
    init_ersatz_rom (kickmemory);
    ersatzkickfile = 1;
#endif

#ifdef ACTION_REPLAY
    action_replay_load();
    action_replay_init(1);

    #ifdef ACTION_REPLAY_HRTM
    hrtmon_load(1);
    #endif
#endif

    init_mem_banks ();
}

void memory_cleanup (void)
{
#ifdef NATMEM_OFFSET
    delete_shmmaps (0, 0xFFFF0000);
#endif

#ifdef AUTOCONFIG
    if (a3000memory)
	mapped_free (a3000memory);
    a3000memory = 0;
#endif
    if (bogomemory)
	mapped_free (bogomemory);
    if (kickmemory)
	mapped_free (kickmemory);
    if (a1000_bootrom)
	free (a1000_bootrom);
    if (chipmemory)
	mapped_free (chipmemory);

    bogomemory = 0;
    kickmemory = 0;
    a1000_bootrom = 0;
    chipmemory = 0;

    allocated_chipmem = 0;
    allocated_fastmem = 0;
    allocated_bogomem = 0;
    allocated_a3000mem = 0;

    #ifdef ACTION_REPLAY
    action_replay_cleanup();
    #endif

    if (rtarea)
	mapped_free (rtarea);
    rtarea = 0;
}

void map_banks (addrbank *bank, int start, int size, int realsize)
{
    int bnr;
    unsigned long int hioffs = 0, endhioffs = 0x100;
    addrbank *orgbank = bank;
    uae_u32 realstart = start;

    flush_icache (1);		/* Sure don't want to keep any old mappings around! */
#ifdef NATMEM_OFFSET
    delete_shmmaps (start << 16, size << 16);
#endif

    if (!realsize)
	realsize = size << 16;

    if ((size << 16) < realsize) {
	//write_log ("Please report to bmeyer@cs.monash.edu.au, and mention:\n");
	write_log ("Broken mapping, size=%x, realsize=%x\n", size, realsize);
	write_log ("Start is %x\n", start);
	write_log ("Reducing memory sizes, especially chipmem, may fix this problem\n");
	abort ();
    }

#ifndef ADDRESS_SPACE_24BIT
    if (start >= 0x100) {
	int real_left = 0;
	for (bnr = start; bnr < start + size; bnr++) {
	    if (!real_left) {
		realstart = bnr;
		real_left = realsize >> 16;
#ifdef NATMEM_OFFSET
		add_shmmaps (realstart << 16, bank);
#endif
	    }
	    put_mem_bank (bnr << 16, bank, realstart << 16);
	    real_left--;
	}
	return;
    }
#endif
    if (currprefs.address_space_24)
	endhioffs = 0x10000;
#ifdef ADDRESS_SPACE_24BIT
    endhioffs = 0x100;
#endif
    for (hioffs = 0; hioffs < endhioffs; hioffs += 0x100) {
	int real_left = 0;
	for (bnr = start; bnr < start + size; bnr++) {
	    if (!real_left) {
		realstart = bnr + hioffs;
		real_left = realsize >> 16;
#ifdef NATMEM_OFFSET
		add_shmmaps (realstart << 16, bank);
#endif
	    }
	    put_mem_bank ((bnr + hioffs) << 16, bank, realstart << 16);
	    real_left--;
	}
    }
}

#ifdef SAVESTATE

/* memory save/restore code */

uae_u8 *save_cram (uae_u32 *len)
{
    *len = allocated_chipmem;
    return chipmemory;
}

uae_u8 *save_bram (uae_u32 *len)
{
    *len = allocated_bogomem;
    return bogomemory;
}

void restore_cram (uae_u32 len, size_t filepos)
{
    chip_filepos = filepos;
    changed_prefs.chipmem_size = len;
}

void restore_bram (uae_u32 len, size_t filepos)
{
    bogo_filepos = filepos;
    changed_prefs.bogomem_size = len;
}

const uae_u8 *restore_rom (const uae_u8 *src)
{
    restore_u32 ();
    restore_u32 ();
    restore_u32 ();
    restore_u32 ();
    restore_u32 ();
    src += strlen ((const char *) src) + 1;
    if (src[0]) {
	if (zfile_exists ((const char *) src))
	    strncpy (changed_prefs.romfile, (const char *) src, 255);
        src += strlen ((const char *) src) + 1;
    }
    return src;
}

uae_u8 *save_rom (int first, uae_u32 *len, uae_u8 *dstptr)
{
    static int count;
    uae_u8 *dst, *dstbak;
    uae_u8 *mem_real_start;
    int mem_start, mem_size, mem_type, i, saverom;

    saverom = 0;
    if (first)
	count = 0;
    for (;;) {
	mem_type = count;
	switch (count) {
	case 0:		/* Kickstart ROM */
	    mem_start = 0xf80000;
	    mem_real_start = kickmemory;
	    mem_size = kickmem_size;
	    /* 256KB or 512KB ROM? */
	    for (i = 0; i < mem_size / 2 - 4; i++) {
		if (longget (i + mem_start) != longget (i + mem_start + mem_size / 2))
		    break;
	    }
	    if (i == mem_size / 2 - 4) {
		mem_size /= 2;
		mem_start += 262144;
	    }
	    mem_type = 0;
	    break;
	default:
	    return 0;
	}
	count++;
	if (mem_size)
	    break;
    }
    if (dstptr)
	dstbak = dst = dstptr;
    else
        dstbak = dst = malloc (4 + 4 + 4 + 4 + 4 + mem_size);
    save_u32 (mem_start);
    save_u32 (mem_size);
    save_u32 (mem_type);
    save_u32 (longget (mem_start + 12));	/* version+revision */
    save_u32 (get_crc32 (kickmemory, mem_size));
    sprintf ((char *) dst, "Kickstart %d.%d", wordget (mem_start + 12), wordget (mem_start + 14));
    dst += strlen ((const char *) dst) + 1;
    strcpy ((char *) dst, currprefs.romfile);/* rom image name */
    dst += strlen ((const char *) dst) + 1;
    if (saverom) {
	for (i = 0; i < mem_size; i++)
	    *dst++ = byteget (mem_start + i);
    }
    *len = dst - dstbak;
    return dstbak;
}

#endif /* SAVESTATE */