src/uae_cpu/memory.cpp

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

#include <stdio.h>
#include <stdlib.h>

#include "sysdeps.h"

#include "cpu_emulation.h"
#include "m68k.h"
#include "memory.h"
#include "readcpu.h"
#include "newcpu.h"
#include "main.h"
#include "video.h"

#if !REAL_ADDRESSING && !DIRECT_ADDRESSING

static bool illegal_mem = false;

#ifdef SAVE_MEMORY_BANKS
addrbank *mem_banks[65536];
#else
addrbank mem_banks[65536];
#endif

#ifdef WORDS_BIGENDIAN
# define swap_words(X) (X)
#else
# define swap_words(X) (((X) >> 16) | ((X) << 16))
#endif

#ifdef NO_INLINE_MEMORY_ACCESS
__inline__ uae_u32 longget (uaecptr addr)
{
    return call_mem_get_func (get_mem_bank (addr).lget, addr);
}
__inline__ uae_u32 wordget (uaecptr addr)
{
    return call_mem_get_func (get_mem_bank (addr).wget, addr);
}
__inline__ uae_u32 byteget (uaecptr addr)
{
    return call_mem_get_func (get_mem_bank (addr).bget, addr);
}
__inline__ void longput (uaecptr addr, uae_u32 l)
{
    call_mem_put_func (get_mem_bank (addr).lput, addr, l);
}
__inline__ void wordput (uaecptr addr, uae_u32 w)
{
    call_mem_put_func (get_mem_bank (addr).wput, addr, w);
}
__inline__ void byteput (uaecptr addr, uae_u32 b)
{
    call_mem_put_func (get_mem_bank (addr).bput, addr, b);
}
#endif

/* A dummy bank that only contains zeros */

static uae_u32 REGPARAM2 dummy_lget (uaecptr) REGPARAM;
static uae_u32 REGPARAM2 dummy_wget (uaecptr) REGPARAM;
static uae_u32 REGPARAM2 dummy_bget (uaecptr) REGPARAM;
static void REGPARAM2 dummy_lput (uaecptr, uae_u32) REGPARAM;
static void REGPARAM2 dummy_wput (uaecptr, uae_u32) REGPARAM;
static void REGPARAM2 dummy_bput (uaecptr, uae_u32) REGPARAM;
static int REGPARAM2 dummy_check (uaecptr addr, uae_u32 size) REGPARAM;

uae_u32 REGPARAM2 dummy_lget (uaecptr addr)
{
    if (illegal_mem)
        write_log ("Illegal lget at %08lx\n", addr);

    return 0;
}

uae_u32 REGPARAM2 dummy_wget (uaecptr addr)
{
    if (illegal_mem)
        write_log ("Illegal wget at %08lx\n", addr);

    return 0;
}

uae_u32 REGPARAM2 dummy_bget (uaecptr addr)
{
    if (illegal_mem)
        write_log ("Illegal bget at %08lx\n", addr);

    return 0;
}

void REGPARAM2 dummy_lput (uaecptr addr, uae_u32 l)
{
    if (illegal_mem)
        write_log ("Illegal lput at %08lx\n", addr);
}
void REGPARAM2 dummy_wput (uaecptr addr, uae_u32 w)
{
    if (illegal_mem)
        write_log ("Illegal wput at %08lx\n", addr);
}
void REGPARAM2 dummy_bput (uaecptr addr, uae_u32 b)
{
    if (illegal_mem)
        write_log ("Illegal bput at %08lx\n", addr);
}

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

    return 0;
}

/* Mac RAM (32 bit addressing) */

static uae_u32 REGPARAM2 ram_lget(uaecptr) REGPARAM;
static uae_u32 REGPARAM2 ram_wget(uaecptr) REGPARAM;
static uae_u32 REGPARAM2 ram_bget(uaecptr) REGPARAM;
static void REGPARAM2 ram_lput(uaecptr, uae_u32) REGPARAM;
static void REGPARAM2 ram_wput(uaecptr, uae_u32) REGPARAM;
static void REGPARAM2 ram_bput(uaecptr, uae_u32) REGPARAM;
static int REGPARAM2 ram_check(uaecptr addr, uae_u32 size) REGPARAM;
static uae_u8 *REGPARAM2 ram_xlate(uaecptr addr) REGPARAM;

static uae_u32 RAMBaseDiff;     // RAMBaseHost - RAMBaseMac

uae_u32 REGPARAM2 ram_lget(uaecptr addr)
{
    uae_u32 *m;
    m = (uae_u32 *)(RAMBaseDiff + addr);
    return do_get_mem_long(m);
}

uae_u32 REGPARAM2 ram_wget(uaecptr addr)
{
    uae_u16 *m;
    m = (uae_u16 *)(RAMBaseDiff + addr);
    return do_get_mem_word(m);
}

uae_u32 REGPARAM2 ram_bget(uaecptr addr)
{
    return (uae_u32)*(uae_u8 *)(RAMBaseDiff + addr);
}

void REGPARAM2 ram_lput(uaecptr addr, uae_u32 l)
{
    uae_u32 *m;
    m = (uae_u32 *)(RAMBaseDiff + addr);
    do_put_mem_long(m, l);
}

void REGPARAM2 ram_wput(uaecptr addr, uae_u32 w)
{
    uae_u16 *m;
    m = (uae_u16 *)(RAMBaseDiff + addr);
    do_put_mem_word(m, w);
}

void REGPARAM2 ram_bput(uaecptr addr, uae_u32 b)
{
        *(uae_u8 *)(RAMBaseDiff + addr) = b;
}

int REGPARAM2 ram_check(uaecptr addr, uae_u32 size)
{
    return (addr - RAMBaseMac + size) < RAMSize;
}

uae_u8 *REGPARAM2 ram_xlate(uaecptr addr)
{
    return (uae_u8 *)(RAMBaseDiff + addr);
}

/* Mac RAM (24 bit addressing) */

static uae_u32 REGPARAM2 ram24_lget(uaecptr) REGPARAM;
static uae_u32 REGPARAM2 ram24_wget(uaecptr) REGPARAM;
static uae_u32 REGPARAM2 ram24_bget(uaecptr) REGPARAM;
static void REGPARAM2 ram24_lput(uaecptr, uae_u32) REGPARAM;
static void REGPARAM2 ram24_wput(uaecptr, uae_u32) REGPARAM;
static void REGPARAM2 ram24_bput(uaecptr, uae_u32) REGPARAM;
static int REGPARAM2 ram24_check(uaecptr addr, uae_u32 size) REGPARAM;
static uae_u8 *REGPARAM2 ram24_xlate(uaecptr addr) REGPARAM;

uae_u32 REGPARAM2 ram24_lget(uaecptr addr)
{
    uae_u32 *m;
    m = (uae_u32 *)(RAMBaseDiff + (addr & 0xffffff));
    return do_get_mem_long(m);
}

uae_u32 REGPARAM2 ram24_wget(uaecptr addr)
{
    uae_u16 *m;
    m = (uae_u16 *)(RAMBaseDiff + (addr & 0xffffff));
    return do_get_mem_word(m);
}

uae_u32 REGPARAM2 ram24_bget(uaecptr addr)
{
    return (uae_u32)*(uae_u8 *)(RAMBaseDiff + (addr & 0xffffff));
}

void REGPARAM2 ram24_lput(uaecptr addr, uae_u32 l)
{
    uae_u32 *m;
    m = (uae_u32 *)(RAMBaseDiff + (addr & 0xffffff));
    do_put_mem_long(m, l);
}

void REGPARAM2 ram24_wput(uaecptr addr, uae_u32 w)
{
    uae_u16 *m;
    m = (uae_u16 *)(RAMBaseDiff + (addr & 0xffffff));
    do_put_mem_word(m, w);
}

void REGPARAM2 ram24_bput(uaecptr addr, uae_u32 b)
{
        *(uae_u8 *)(RAMBaseDiff + (addr & 0xffffff)) = b;
}

int REGPARAM2 ram24_check(uaecptr addr, uae_u32 size)
{
    return ((addr & 0xffffff) - RAMBaseMac + size) < RAMSize;
}

uae_u8 *REGPARAM2 ram24_xlate(uaecptr addr)
{
    return (uae_u8 *)(RAMBaseDiff + (addr & 0xffffff));
}

/* Mac ROM (32 bit addressing) */

static uae_u32 REGPARAM2 rom_lget(uaecptr) REGPARAM;
static uae_u32 REGPARAM2 rom_wget(uaecptr) REGPARAM;
static uae_u32 REGPARAM2 rom_bget(uaecptr) REGPARAM;
static void REGPARAM2 rom_lput(uaecptr, uae_u32) REGPARAM;
static void REGPARAM2 rom_wput(uaecptr, uae_u32) REGPARAM;
static void REGPARAM2 rom_bput(uaecptr, uae_u32) REGPARAM;
static int REGPARAM2 rom_check(uaecptr addr, uae_u32 size) REGPARAM;
static uae_u8 *REGPARAM2 rom_xlate(uaecptr addr) REGPARAM;

static uae_u32 ROMBaseDiff;     // ROMBaseHost - ROMBaseMac

uae_u32 REGPARAM2 rom_lget(uaecptr addr)
{
    uae_u32 *m;
    m = (uae_u32 *)(ROMBaseDiff + addr);
    return do_get_mem_long(m);
}

uae_u32 REGPARAM2 rom_wget(uaecptr addr)
{
    uae_u16 *m;
    m = (uae_u16 *)(ROMBaseDiff + addr);
    return do_get_mem_word(m);
}

uae_u32 REGPARAM2 rom_bget(uaecptr addr)
{
    return (uae_u32)*(uae_u8 *)(ROMBaseDiff + addr);
}

void REGPARAM2 rom_lput(uaecptr addr, uae_u32 b)
{
    if (illegal_mem)
        write_log ("Illegal ROM lput at %08lx\n", addr);
}

void REGPARAM2 rom_wput(uaecptr addr, uae_u32 b)
{
    if (illegal_mem)
        write_log ("Illegal ROM wput at %08lx\n", addr);
}

void REGPARAM2 rom_bput(uaecptr addr, uae_u32 b)
{
    if (illegal_mem)
        write_log ("Illegal ROM bput at %08lx\n", addr);
}

int REGPARAM2 rom_check(uaecptr addr, uae_u32 size)
{
    return (addr - ROMBaseMac + size) < ROMSize;
}

uae_u8 *REGPARAM2 rom_xlate(uaecptr addr)
{
    return (uae_u8 *)(ROMBaseDiff + addr);
}

/* Mac ROM (24 bit addressing) */

static uae_u32 REGPARAM2 rom24_lget(uaecptr) REGPARAM;
static uae_u32 REGPARAM2 rom24_wget(uaecptr) REGPARAM;
static uae_u32 REGPARAM2 rom24_bget(uaecptr) REGPARAM;
static int REGPARAM2 rom24_check(uaecptr addr, uae_u32 size) REGPARAM;
static uae_u8 *REGPARAM2 rom24_xlate(uaecptr addr) REGPARAM;

uae_u32 REGPARAM2 rom24_lget(uaecptr addr)
{
    uae_u32 *m;
    m = (uae_u32 *)(ROMBaseDiff + (addr & 0xffffff));
    return do_get_mem_long(m);
}

uae_u32 REGPARAM2 rom24_wget(uaecptr addr)
{
    uae_u16 *m;
    m = (uae_u16 *)(ROMBaseDiff + (addr & 0xffffff));
    return do_get_mem_word(m);
}

uae_u32 REGPARAM2 rom24_bget(uaecptr addr)
{
    return (uae_u32)*(uae_u8 *)(ROMBaseDiff + (addr & 0xffffff));
}

int REGPARAM2 rom24_check(uaecptr addr, uae_u32 size)
{
    return ((addr & 0xffffff) - ROMBaseMac + size) < ROMSize;
}

uae_u8 *REGPARAM2 rom24_xlate(uaecptr addr)
{
    return (uae_u8 *)(ROMBaseDiff + (addr & 0xffffff));
}

/* Frame buffer */

static uae_u32 REGPARAM2 frame_direct_lget(uaecptr) REGPARAM;
static uae_u32 REGPARAM2 frame_direct_wget(uaecptr) REGPARAM;
static uae_u32 REGPARAM2 frame_direct_bget(uaecptr) REGPARAM;
static void REGPARAM2 frame_direct_lput(uaecptr, uae_u32) REGPARAM;
static void REGPARAM2 frame_direct_wput(uaecptr, uae_u32) REGPARAM;
static void REGPARAM2 frame_direct_bput(uaecptr, uae_u32) REGPARAM;

static uae_u32 REGPARAM2 frame_host_555_lget(uaecptr) REGPARAM;
static uae_u32 REGPARAM2 frame_host_555_wget(uaecptr) REGPARAM;
static void REGPARAM2 frame_host_555_lput(uaecptr, uae_u32) REGPARAM;
static void REGPARAM2 frame_host_555_wput(uaecptr, uae_u32) REGPARAM;

static uae_u32 REGPARAM2 frame_host_565_lget(uaecptr) REGPARAM;
static uae_u32 REGPARAM2 frame_host_565_wget(uaecptr) REGPARAM;
static void REGPARAM2 frame_host_565_lput(uaecptr, uae_u32) REGPARAM;
static void REGPARAM2 frame_host_565_wput(uaecptr, uae_u32) REGPARAM;

static uae_u32 REGPARAM2 frame_host_888_lget(uaecptr) REGPARAM;
static void REGPARAM2 frame_host_888_lput(uaecptr, uae_u32) REGPARAM;

static int REGPARAM2 frame_check(uaecptr addr, uae_u32 size) REGPARAM;
static uae_u8 *REGPARAM2 frame_xlate(uaecptr addr) REGPARAM;

static uae_u32 FrameBaseDiff;   // MacFrameBaseHost - MacFrameBaseMac

uae_u32 REGPARAM2 frame_direct_lget(uaecptr addr)
{
    uae_u32 *m;
    m = (uae_u32 *)(FrameBaseDiff + addr);
    return do_get_mem_long(m);
}

uae_u32 REGPARAM2 frame_direct_wget(uaecptr addr)
{
    uae_u16 *m;
    m = (uae_u16 *)(FrameBaseDiff + addr);
    return do_get_mem_word(m);
}

uae_u32 REGPARAM2 frame_direct_bget(uaecptr addr)
{
    return (uae_u32)*(uae_u8 *)(FrameBaseDiff + addr);
}

void REGPARAM2 frame_direct_lput(uaecptr addr, uae_u32 l)
{
    uae_u32 *m;
    m = (uae_u32 *)(FrameBaseDiff + addr);
    do_put_mem_long(m, l);
}

void REGPARAM2 frame_direct_wput(uaecptr addr, uae_u32 w)
{
    uae_u16 *m;
    m = (uae_u16 *)(FrameBaseDiff + addr);
    do_put_mem_word(m, w);
}

void REGPARAM2 frame_direct_bput(uaecptr addr, uae_u32 b)
{
    *(uae_u8 *)(FrameBaseDiff + addr) = b;
}

uae_u32 REGPARAM2 frame_host_555_lget(uaecptr addr)
{
    uae_u32 *m, l;
    m = (uae_u32 *)(FrameBaseDiff + addr);
    l = *m;
        return swap_words(l);
}

uae_u32 REGPARAM2 frame_host_555_wget(uaecptr addr)
{
    uae_u16 *m;
    m = (uae_u16 *)(FrameBaseDiff + addr);
    return *m;
}

void REGPARAM2 frame_host_555_lput(uaecptr addr, uae_u32 l)
{
    uae_u32 *m;
    m = (uae_u32 *)(FrameBaseDiff + addr);
    *m = swap_words(l);
}

void REGPARAM2 frame_host_555_wput(uaecptr addr, uae_u32 w)
{
    uae_u16 *m;
    m = (uae_u16 *)(FrameBaseDiff + addr);
    *m = w;
}

uae_u32 REGPARAM2 frame_host_565_lget(uaecptr addr)
{
    uae_u32 *m, l;
    m = (uae_u32 *)(FrameBaseDiff + addr);
    l = *m;
    l = (l & 0x001f001f) | ((l >> 1) & 0x7fe07fe0);
    return swap_words(l);
}

uae_u32 REGPARAM2 frame_host_565_wget(uaecptr addr)
{
    uae_u16 *m, w;
    m = (uae_u16 *)(FrameBaseDiff + addr);
    w = *m;
    return (w & 0x1f) | ((w >> 1) & 0x7fe0);
}

void REGPARAM2 frame_host_565_lput(uaecptr addr, uae_u32 l)
{
    uae_u32 *m;
    m = (uae_u32 *)(FrameBaseDiff + addr);
    l = (l & 0x001f001f) | ((l << 1) & 0xffc0ffc0);
    *m = swap_words(l);
}

void REGPARAM2 frame_host_565_wput(uaecptr addr, uae_u32 w)
{
    uae_u16 *m;
    m = (uae_u16 *)(FrameBaseDiff + addr);
    *m = (w & 0x1f) | ((w << 1) & 0xffc0);
}

uae_u32 REGPARAM2 frame_host_888_lget(uaecptr addr)
{
    uae_u32 *m, l;
    m = (uae_u32 *)(FrameBaseDiff + addr);
    return *m;
}

void REGPARAM2 frame_host_888_lput(uaecptr addr, uae_u32 l)
{
    uae_u32 *m;
    m = (uae_u32 *)(MacFrameBaseHost + addr - MacFrameBaseMac);
    *m = l;
}

int REGPARAM2 frame_check(uaecptr addr, uae_u32 size)
{
    return (addr - MacFrameBaseMac + size) < MacFrameSize;
}

uae_u8 *REGPARAM2 frame_xlate(uaecptr addr)
{
    return (uae_u8 *)(FrameBaseDiff + addr);
}

/* Default memory access functions */

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

uae_u8 *REGPARAM2 default_xlate (uaecptr a)
{
    write_log("Your Mac program just did something terribly stupid\n");
    return NULL;
}

/* Address banks */

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

addrbank ram_bank = {
    ram_lget, ram_wget, ram_bget,
    ram_lput, ram_wput, ram_bput,
    ram_xlate, ram_check
};

addrbank ram24_bank = {
    ram24_lget, ram24_wget, ram24_bget,
    ram24_lput, ram24_wput, ram24_bput,
    ram24_xlate, ram24_check
};

addrbank rom_bank = {
    rom_lget, rom_wget, rom_bget,
    rom_lput, rom_wput, rom_bput,
    rom_xlate, rom_check
};

addrbank rom24_bank = {
    rom24_lget, rom24_wget, rom24_bget,
    rom_lput, rom_wput, rom_bput,
    rom24_xlate, rom24_check
};

addrbank frame_direct_bank = {
    frame_direct_lget, frame_direct_wget, frame_direct_bget,
    frame_direct_lput, frame_direct_wput, frame_direct_bput,
    frame_xlate, frame_check
};

addrbank frame_host_555_bank = {
    frame_host_555_lget, frame_host_555_wget, frame_direct_bget,
    frame_host_555_lput, frame_host_555_wput, frame_direct_bput,
    frame_xlate, frame_check
};

addrbank frame_host_565_bank = {
    frame_host_565_lget, frame_host_565_wget, frame_direct_bget,
    frame_host_565_lput, frame_host_565_wput, frame_direct_bput,
    frame_xlate, frame_check
};

addrbank frame_host_888_bank = {
    frame_host_888_lget, frame_direct_wget, frame_direct_bget,
    frame_host_888_lput, frame_direct_wput, frame_direct_bput,
    frame_xlate, frame_check
};

void memory_init(void)
{
        for(long i=0; i<65536; i++)
                put_mem_bank(i<<16, &dummy_bank);

        // Limit RAM size to not overlap ROM
        uint32 ram_size = RAMSize > ROMBaseMac ? ROMBaseMac : RAMSize;

        RAMBaseDiff = (uae_u32)RAMBaseHost - (uae_u32)RAMBaseMac;
        ROMBaseDiff = (uae_u32)ROMBaseHost - (uae_u32)ROMBaseMac;
        FrameBaseDiff = (uae_u32)MacFrameBaseHost - (uae_u32)MacFrameBaseMac;

        // Map RAM and ROM
        if (TwentyFourBitAddressing) {
                map_banks(&ram24_bank, RAMBaseMac >> 16, ram_size >> 16);
                map_banks(&rom24_bank, ROMBaseMac >> 16, ROMSize >> 16);
        } else {
                map_banks(&ram_bank, RAMBaseMac >> 16, ram_size >> 16);
                map_banks(&rom_bank, ROMBaseMac >> 16, ROMSize >> 16);
        }

        // Map frame buffer
        switch (MacFrameLayout) {
                case FLAYOUT_DIRECT:
                        map_banks(&frame_direct_bank, MacFrameBaseMac >> 16, (MacFrameSize >> 16) + 1);
                        break;
                case FLAYOUT_HOST_555:
                        map_banks(&frame_host_555_bank, MacFrameBaseMac >> 16, (MacFrameSize >> 16) + 1);
                        break;
                case FLAYOUT_HOST_565:
                        map_banks(&frame_host_565_bank, MacFrameBaseMac >> 16, (MacFrameSize >> 16) + 1);
                        break;
                case FLAYOUT_HOST_888:
                        map_banks(&frame_host_888_bank, MacFrameBaseMac >> 16, (MacFrameSize >> 16) + 1);
                        break;
        }
}

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

    if (start >= 0x100) {
        for (bnr = start; bnr < start + size; bnr++)
            put_mem_bank (bnr << 16, bank);
        return;
    }
    if (TwentyFourBitAddressing) endhioffs = 0x10000;
    for (hioffs = 0; hioffs < endhioffs; hioffs += 0x100)
        for (bnr = start; bnr < start+size; bnr++)
            put_mem_bank((bnr + hioffs) << 16, bank);
}

#endif /* !REAL_ADDRESSING && !DIRECT_ADDRESSING */

Revision:	1.5
Committed:	2001-07-14T15:02:49Z (23 years, 4 months ago) by cebix
Branch:	MAIN
CVS Tags:	snapshot-15012002
Changes since 1.4:	+0 -5 lines
Log Message:	- 1-bit mode under X11 always uses default visual - fixed possible crash in driver_window dtor (image data would be freed twice, once by XDestroyImage() and once in driver_base dtor) - fixed compilation problems with banked memory - fixed typos
#	User	Rev	Content
1	cebix	1.1	/*
2			* UAE - The Un*x Amiga Emulator
3			*
4			* Memory management
5			*
6			* (c) 1995 Bernd Schmidt
7			*/
8
9			#include <stdio.h>
10			#include <stdlib.h>
11
12			#include "sysdeps.h"
13
14			#include "cpu_emulation.h"
15			#include "m68k.h"
16			#include "memory.h"
17			#include "readcpu.h"
18			#include "newcpu.h"
19			#include "main.h"
20			#include "video.h"
21
22	gbeauche	1.3	#if !REAL_ADDRESSING && !DIRECT_ADDRESSING
23
24	cebix	1.1	static bool illegal_mem = false;
25
26			#ifdef SAVE_MEMORY_BANKS
27			addrbank *mem_banks[65536];
28			#else
29			addrbank mem_banks[65536];
30			#endif
31
32	gbeauche	1.3	#ifdef WORDS_BIGENDIAN
33			# define swap_words(X) (X)
34			#else
35			# define swap_words(X) (((X) >> 16) \| ((X) << 16))
36			#endif
37
38	cebix	1.1	#ifdef NO_INLINE_MEMORY_ACCESS
39			__inline__ uae_u32 longget (uaecptr addr)
40			{
41			return call_mem_get_func (get_mem_bank (addr).lget, addr);
42			}
43			__inline__ uae_u32 wordget (uaecptr addr)
44			{
45			return call_mem_get_func (get_mem_bank (addr).wget, addr);
46			}
47			__inline__ uae_u32 byteget (uaecptr addr)
48			{
49			return call_mem_get_func (get_mem_bank (addr).bget, addr);
50			}
51			__inline__ void longput (uaecptr addr, uae_u32 l)
52			{
53			call_mem_put_func (get_mem_bank (addr).lput, addr, l);
54			}
55			__inline__ void wordput (uaecptr addr, uae_u32 w)
56			{
57			call_mem_put_func (get_mem_bank (addr).wput, addr, w);
58			}
59			__inline__ void byteput (uaecptr addr, uae_u32 b)
60			{
61			call_mem_put_func (get_mem_bank (addr).bput, addr, b);
62			}
63			#endif
64
65			/* A dummy bank that only contains zeros */
66
67			static uae_u32 REGPARAM2 dummy_lget (uaecptr) REGPARAM;
68			static uae_u32 REGPARAM2 dummy_wget (uaecptr) REGPARAM;
69			static uae_u32 REGPARAM2 dummy_bget (uaecptr) REGPARAM;
70			static void REGPARAM2 dummy_lput (uaecptr, uae_u32) REGPARAM;
71			static void REGPARAM2 dummy_wput (uaecptr, uae_u32) REGPARAM;
72			static void REGPARAM2 dummy_bput (uaecptr, uae_u32) REGPARAM;
73			static int REGPARAM2 dummy_check (uaecptr addr, uae_u32 size) REGPARAM;
74
75			uae_u32 REGPARAM2 dummy_lget (uaecptr addr)
76			{
77			if (illegal_mem)
78			write_log ("Illegal lget at %08lx\n", addr);
79
80			return 0;
81			}
82
83			uae_u32 REGPARAM2 dummy_wget (uaecptr addr)
84			{
85			if (illegal_mem)
86			write_log ("Illegal wget at %08lx\n", addr);
87
88			return 0;
89			}
90
91			uae_u32 REGPARAM2 dummy_bget (uaecptr addr)
92			{
93			if (illegal_mem)
94			write_log ("Illegal bget at %08lx\n", addr);
95
96			return 0;
97			}
98
99			void REGPARAM2 dummy_lput (uaecptr addr, uae_u32 l)
100			{
101			if (illegal_mem)
102			write_log ("Illegal lput at %08lx\n", addr);
103			}
104			void REGPARAM2 dummy_wput (uaecptr addr, uae_u32 w)
105			{
106			if (illegal_mem)
107			write_log ("Illegal wput at %08lx\n", addr);
108			}
109			void REGPARAM2 dummy_bput (uaecptr addr, uae_u32 b)
110			{
111			if (illegal_mem)
112			write_log ("Illegal bput at %08lx\n", addr);
113			}
114
115			int REGPARAM2 dummy_check (uaecptr addr, uae_u32 size)
116			{
117			if (illegal_mem)
118			write_log ("Illegal check at %08lx\n", addr);
119
120			return 0;
121			}
122
123			/* Mac RAM (32 bit addressing) */
124
125			static uae_u32 REGPARAM2 ram_lget(uaecptr) REGPARAM;
126			static uae_u32 REGPARAM2 ram_wget(uaecptr) REGPARAM;
127			static uae_u32 REGPARAM2 ram_bget(uaecptr) REGPARAM;
128			static void REGPARAM2 ram_lput(uaecptr, uae_u32) REGPARAM;
129			static void REGPARAM2 ram_wput(uaecptr, uae_u32) REGPARAM;
130			static void REGPARAM2 ram_bput(uaecptr, uae_u32) REGPARAM;
131			static int REGPARAM2 ram_check(uaecptr addr, uae_u32 size) REGPARAM;
132			static uae_u8 *REGPARAM2 ram_xlate(uaecptr addr) REGPARAM;
133
134			static uae_u32 RAMBaseDiff; // RAMBaseHost - RAMBaseMac
135
136			uae_u32 REGPARAM2 ram_lget(uaecptr addr)
137			{
138			uae_u32 *m;
139			m = (uae_u32 *)(RAMBaseDiff + addr);
140			return do_get_mem_long(m);
141			}
142
143			uae_u32 REGPARAM2 ram_wget(uaecptr addr)
144			{
145			uae_u16 *m;
146			m = (uae_u16 *)(RAMBaseDiff + addr);
147			return do_get_mem_word(m);
148			}
149
150			uae_u32 REGPARAM2 ram_bget(uaecptr addr)
151			{
152			return (uae_u32)(uae_u8 )(RAMBaseDiff + addr);
153			}
154
155			void REGPARAM2 ram_lput(uaecptr addr, uae_u32 l)
156			{
157			uae_u32 *m;
158			m = (uae_u32 *)(RAMBaseDiff + addr);
159			do_put_mem_long(m, l);
160			}
161
162			void REGPARAM2 ram_wput(uaecptr addr, uae_u32 w)
163			{
164			uae_u16 *m;
165			m = (uae_u16 *)(RAMBaseDiff + addr);
166			do_put_mem_word(m, w);
167			}
168
169			void REGPARAM2 ram_bput(uaecptr addr, uae_u32 b)
170			{
171			(uae_u8 )(RAMBaseDiff + addr) = b;
172			}
173
174			int REGPARAM2 ram_check(uaecptr addr, uae_u32 size)
175			{
176			return (addr - RAMBaseMac + size) < RAMSize;
177			}
178
179			uae_u8 *REGPARAM2 ram_xlate(uaecptr addr)
180			{
181			return (uae_u8 *)(RAMBaseDiff + addr);
182			}
183
184			/* Mac RAM (24 bit addressing) */
185
186			static uae_u32 REGPARAM2 ram24_lget(uaecptr) REGPARAM;
187			static uae_u32 REGPARAM2 ram24_wget(uaecptr) REGPARAM;
188			static uae_u32 REGPARAM2 ram24_bget(uaecptr) REGPARAM;
189			static void REGPARAM2 ram24_lput(uaecptr, uae_u32) REGPARAM;
190			static void REGPARAM2 ram24_wput(uaecptr, uae_u32) REGPARAM;
191			static void REGPARAM2 ram24_bput(uaecptr, uae_u32) REGPARAM;
192			static int REGPARAM2 ram24_check(uaecptr addr, uae_u32 size) REGPARAM;
193			static uae_u8 *REGPARAM2 ram24_xlate(uaecptr addr) REGPARAM;
194
195			uae_u32 REGPARAM2 ram24_lget(uaecptr addr)
196			{
197			uae_u32 *m;
198			m = (uae_u32 *)(RAMBaseDiff + (addr & 0xffffff));
199			return do_get_mem_long(m);
200			}
201
202			uae_u32 REGPARAM2 ram24_wget(uaecptr addr)
203			{
204			uae_u16 *m;
205			m = (uae_u16 *)(RAMBaseDiff + (addr & 0xffffff));
206			return do_get_mem_word(m);
207			}
208
209			uae_u32 REGPARAM2 ram24_bget(uaecptr addr)
210			{
211			return (uae_u32)(uae_u8 )(RAMBaseDiff + (addr & 0xffffff));
212			}
213
214			void REGPARAM2 ram24_lput(uaecptr addr, uae_u32 l)
215			{
216			uae_u32 *m;
217			m = (uae_u32 *)(RAMBaseDiff + (addr & 0xffffff));
218			do_put_mem_long(m, l);
219			}
220
221			void REGPARAM2 ram24_wput(uaecptr addr, uae_u32 w)
222			{
223			uae_u16 *m;
224			m = (uae_u16 *)(RAMBaseDiff + (addr & 0xffffff));
225			do_put_mem_word(m, w);
226			}
227
228			void REGPARAM2 ram24_bput(uaecptr addr, uae_u32 b)
229			{
230			(uae_u8 )(RAMBaseDiff + (addr & 0xffffff)) = b;
231			}
232
233			int REGPARAM2 ram24_check(uaecptr addr, uae_u32 size)
234			{
235			return ((addr & 0xffffff) - RAMBaseMac + size) < RAMSize;
236			}
237
238			uae_u8 *REGPARAM2 ram24_xlate(uaecptr addr)
239			{
240			return (uae_u8 *)(RAMBaseDiff + (addr & 0xffffff));
241			}
242
243			/* Mac ROM (32 bit addressing) */
244
245			static uae_u32 REGPARAM2 rom_lget(uaecptr) REGPARAM;
246			static uae_u32 REGPARAM2 rom_wget(uaecptr) REGPARAM;
247			static uae_u32 REGPARAM2 rom_bget(uaecptr) REGPARAM;
248			static void REGPARAM2 rom_lput(uaecptr, uae_u32) REGPARAM;
249			static void REGPARAM2 rom_wput(uaecptr, uae_u32) REGPARAM;
250			static void REGPARAM2 rom_bput(uaecptr, uae_u32) REGPARAM;
251			static int REGPARAM2 rom_check(uaecptr addr, uae_u32 size) REGPARAM;
252			static uae_u8 *REGPARAM2 rom_xlate(uaecptr addr) REGPARAM;
253
254			static uae_u32 ROMBaseDiff; // ROMBaseHost - ROMBaseMac
255
256			uae_u32 REGPARAM2 rom_lget(uaecptr addr)
257			{
258			uae_u32 *m;
259			m = (uae_u32 *)(ROMBaseDiff + addr);
260			return do_get_mem_long(m);
261			}
262
263			uae_u32 REGPARAM2 rom_wget(uaecptr addr)
264			{
265			uae_u16 *m;
266			m = (uae_u16 *)(ROMBaseDiff + addr);
267			return do_get_mem_word(m);
268			}
269
270			uae_u32 REGPARAM2 rom_bget(uaecptr addr)
271			{
272			return (uae_u32)(uae_u8 )(ROMBaseDiff + addr);
273			}
274
275			void REGPARAM2 rom_lput(uaecptr addr, uae_u32 b)
276			{
277			if (illegal_mem)
278			write_log ("Illegal ROM lput at %08lx\n", addr);
279			}
280
281			void REGPARAM2 rom_wput(uaecptr addr, uae_u32 b)
282			{
283			if (illegal_mem)
284			write_log ("Illegal ROM wput at %08lx\n", addr);
285			}
286
287			void REGPARAM2 rom_bput(uaecptr addr, uae_u32 b)
288			{
289			if (illegal_mem)
290			write_log ("Illegal ROM bput at %08lx\n", addr);
291			}
292
293			int REGPARAM2 rom_check(uaecptr addr, uae_u32 size)
294			{
295			return (addr - ROMBaseMac + size) < ROMSize;
296			}
297
298			uae_u8 *REGPARAM2 rom_xlate(uaecptr addr)
299			{
300			return (uae_u8 *)(ROMBaseDiff + addr);
301			}
302
303			/* Mac ROM (24 bit addressing) */
304
305			static uae_u32 REGPARAM2 rom24_lget(uaecptr) REGPARAM;
306			static uae_u32 REGPARAM2 rom24_wget(uaecptr) REGPARAM;
307			static uae_u32 REGPARAM2 rom24_bget(uaecptr) REGPARAM;
308			static int REGPARAM2 rom24_check(uaecptr addr, uae_u32 size) REGPARAM;
309			static uae_u8 *REGPARAM2 rom24_xlate(uaecptr addr) REGPARAM;
310
311			uae_u32 REGPARAM2 rom24_lget(uaecptr addr)
312			{
313			uae_u32 *m;
314			m = (uae_u32 *)(ROMBaseDiff + (addr & 0xffffff));
315			return do_get_mem_long(m);
316			}
317
318			uae_u32 REGPARAM2 rom24_wget(uaecptr addr)
319			{
320			uae_u16 *m;
321			m = (uae_u16 *)(ROMBaseDiff + (addr & 0xffffff));
322			return do_get_mem_word(m);
323			}
324
325			uae_u32 REGPARAM2 rom24_bget(uaecptr addr)
326			{
327			return (uae_u32)(uae_u8 )(ROMBaseDiff + (addr & 0xffffff));
328			}
329
330			int REGPARAM2 rom24_check(uaecptr addr, uae_u32 size)
331			{
332			return ((addr & 0xffffff) - ROMBaseMac + size) < ROMSize;
333			}
334
335			uae_u8 *REGPARAM2 rom24_xlate(uaecptr addr)
336			{
337			return (uae_u8 *)(ROMBaseDiff + (addr & 0xffffff));
338			}
339
340			/* Frame buffer */
341
342			static uae_u32 REGPARAM2 frame_direct_lget(uaecptr) REGPARAM;
343			static uae_u32 REGPARAM2 frame_direct_wget(uaecptr) REGPARAM;
344			static uae_u32 REGPARAM2 frame_direct_bget(uaecptr) REGPARAM;
345			static void REGPARAM2 frame_direct_lput(uaecptr, uae_u32) REGPARAM;
346			static void REGPARAM2 frame_direct_wput(uaecptr, uae_u32) REGPARAM;
347			static void REGPARAM2 frame_direct_bput(uaecptr, uae_u32) REGPARAM;
348
349			static uae_u32 REGPARAM2 frame_host_555_lget(uaecptr) REGPARAM;
350			static uae_u32 REGPARAM2 frame_host_555_wget(uaecptr) REGPARAM;
351			static void REGPARAM2 frame_host_555_lput(uaecptr, uae_u32) REGPARAM;
352			static void REGPARAM2 frame_host_555_wput(uaecptr, uae_u32) REGPARAM;
353
354			static uae_u32 REGPARAM2 frame_host_565_lget(uaecptr) REGPARAM;
355			static uae_u32 REGPARAM2 frame_host_565_wget(uaecptr) REGPARAM;
356			static void REGPARAM2 frame_host_565_lput(uaecptr, uae_u32) REGPARAM;
357			static void REGPARAM2 frame_host_565_wput(uaecptr, uae_u32) REGPARAM;
358
359			static uae_u32 REGPARAM2 frame_host_888_lget(uaecptr) REGPARAM;
360			static void REGPARAM2 frame_host_888_lput(uaecptr, uae_u32) REGPARAM;
361
362			static int REGPARAM2 frame_check(uaecptr addr, uae_u32 size) REGPARAM;
363			static uae_u8 *REGPARAM2 frame_xlate(uaecptr addr) REGPARAM;
364
365			static uae_u32 FrameBaseDiff; // MacFrameBaseHost - MacFrameBaseMac
366
367			uae_u32 REGPARAM2 frame_direct_lget(uaecptr addr)
368			{
369			uae_u32 *m;
370			m = (uae_u32 *)(FrameBaseDiff + addr);
371			return do_get_mem_long(m);
372			}
373
374			uae_u32 REGPARAM2 frame_direct_wget(uaecptr addr)
375			{
376			uae_u16 *m;
377			m = (uae_u16 *)(FrameBaseDiff + addr);
378			return do_get_mem_word(m);
379			}
380
381			uae_u32 REGPARAM2 frame_direct_bget(uaecptr addr)
382			{
383			return (uae_u32)(uae_u8 )(FrameBaseDiff + addr);
384			}
385
386			void REGPARAM2 frame_direct_lput(uaecptr addr, uae_u32 l)
387			{
388			uae_u32 *m;
389			m = (uae_u32 *)(FrameBaseDiff + addr);
390			do_put_mem_long(m, l);
391			}
392
393			void REGPARAM2 frame_direct_wput(uaecptr addr, uae_u32 w)
394			{
395			uae_u16 *m;
396			m = (uae_u16 *)(FrameBaseDiff + addr);
397			do_put_mem_word(m, w);
398			}
399
400			void REGPARAM2 frame_direct_bput(uaecptr addr, uae_u32 b)
401			{
402			(uae_u8 )(FrameBaseDiff + addr) = b;
403			}
404
405			uae_u32 REGPARAM2 frame_host_555_lget(uaecptr addr)
406			{
407			uae_u32 *m, l;
408			m = (uae_u32 *)(FrameBaseDiff + addr);
409			l = *m;
410	gbeauche	1.3	return swap_words(l);
411	cebix	1.1	}
412
413			uae_u32 REGPARAM2 frame_host_555_wget(uaecptr addr)
414			{
415			uae_u16 *m;
416			m = (uae_u16 *)(FrameBaseDiff + addr);
417			return *m;
418			}
419
420			void REGPARAM2 frame_host_555_lput(uaecptr addr, uae_u32 l)
421			{
422			uae_u32 *m;
423			m = (uae_u32 *)(FrameBaseDiff + addr);
424	gbeauche	1.3	*m = swap_words(l);
425	cebix	1.1	}
426
427			void REGPARAM2 frame_host_555_wput(uaecptr addr, uae_u32 w)
428			{
429			uae_u16 *m;
430			m = (uae_u16 *)(FrameBaseDiff + addr);
431			*m = w;
432			}
433
434			uae_u32 REGPARAM2 frame_host_565_lget(uaecptr addr)
435			{
436			uae_u32 *m, l;
437			m = (uae_u32 *)(FrameBaseDiff + addr);
438			l = *m;
439			l = (l & 0x001f001f) \| ((l >> 1) & 0x7fe07fe0);
440	gbeauche	1.3	return swap_words(l);
441	cebix	1.1	}
442
443			uae_u32 REGPARAM2 frame_host_565_wget(uaecptr addr)
444			{
445			uae_u16 *m, w;
446			m = (uae_u16 *)(FrameBaseDiff + addr);
447			w = *m;
448			return (w & 0x1f) \| ((w >> 1) & 0x7fe0);
449			}
450
451			void REGPARAM2 frame_host_565_lput(uaecptr addr, uae_u32 l)
452			{
453			uae_u32 *m;
454			m = (uae_u32 *)(FrameBaseDiff + addr);
455			l = (l & 0x001f001f) \| ((l << 1) & 0xffc0ffc0);
456	gbeauche	1.3	*m = swap_words(l);
457	cebix	1.1	}
458
459			void REGPARAM2 frame_host_565_wput(uaecptr addr, uae_u32 w)
460			{
461			uae_u16 *m;
462			m = (uae_u16 *)(FrameBaseDiff + addr);
463			*m = (w & 0x1f) \| ((w << 1) & 0xffc0);
464			}
465
466			uae_u32 REGPARAM2 frame_host_888_lget(uaecptr addr)
467			{
468			uae_u32 *m, l;
469			m = (uae_u32 *)(FrameBaseDiff + addr);
470			return *m;
471			}
472
473			void REGPARAM2 frame_host_888_lput(uaecptr addr, uae_u32 l)
474			{
475			uae_u32 *m;
476			m = (uae_u32 *)(MacFrameBaseHost + addr - MacFrameBaseMac);
477			*m = l;
478			}
479
480			int REGPARAM2 frame_check(uaecptr addr, uae_u32 size)
481			{
482			return (addr - MacFrameBaseMac + size) < MacFrameSize;
483			}
484
485			uae_u8 *REGPARAM2 frame_xlate(uaecptr addr)
486			{
487			return (uae_u8 *)(FrameBaseDiff + addr);
488			}
489
490			/* Default memory access functions */
491
492			int REGPARAM2 default_check (uaecptr a, uae_u32 b)
493			{
494			return 0;
495			}
496
497			uae_u8 *REGPARAM2 default_xlate (uaecptr a)
498			{
499			write_log("Your Mac program just did something terribly stupid\n");
500			return NULL;
501			}
502
503			/* Address banks */
504
505			addrbank dummy_bank = {
506			dummy_lget, dummy_wget, dummy_bget,
507			dummy_lput, dummy_wput, dummy_bput,
508			default_xlate, dummy_check
509			};
510
511			addrbank ram_bank = {
512			ram_lget, ram_wget, ram_bget,
513			ram_lput, ram_wput, ram_bput,
514			ram_xlate, ram_check
515			};
516
517			addrbank ram24_bank = {
518			ram24_lget, ram24_wget, ram24_bget,
519			ram24_lput, ram24_wput, ram24_bput,
520			ram24_xlate, ram24_check
521			};
522
523			addrbank rom_bank = {
524			rom_lget, rom_wget, rom_bget,
525			rom_lput, rom_wput, rom_bput,
526			rom_xlate, rom_check
527			};
528
529			addrbank rom24_bank = {
530			rom24_lget, rom24_wget, rom24_bget,
531			rom_lput, rom_wput, rom_bput,
532			rom24_xlate, rom24_check
533			};
534
535			addrbank frame_direct_bank = {
536			frame_direct_lget, frame_direct_wget, frame_direct_bget,
537			frame_direct_lput, frame_direct_wput, frame_direct_bput,
538			frame_xlate, frame_check
539			};
540
541			addrbank frame_host_555_bank = {
542			frame_host_555_lget, frame_host_555_wget, frame_direct_bget,
543			frame_host_555_lput, frame_host_555_wput, frame_direct_bput,
544			frame_xlate, frame_check
545			};
546
547			addrbank frame_host_565_bank = {
548			frame_host_565_lget, frame_host_565_wget, frame_direct_bget,
549			frame_host_565_lput, frame_host_565_wput, frame_direct_bput,
550			frame_xlate, frame_check
551			};
552
553			addrbank frame_host_888_bank = {
554			frame_host_888_lget, frame_direct_wget, frame_direct_bget,
555			frame_host_888_lput, frame_direct_wput, frame_direct_bput,
556			frame_xlate, frame_check
557			};
558
559			void memory_init(void)
560			{
561	cebix	1.4	for(long i=0; i<65536; i++)
562	cebix	1.1	put_mem_bank(i<<16, &dummy_bank);
563
564			// Limit RAM size to not overlap ROM
565			uint32 ram_size = RAMSize > ROMBaseMac ? ROMBaseMac : RAMSize;
566
567	cebix	1.2	RAMBaseDiff = (uae_u32)RAMBaseHost - (uae_u32)RAMBaseMac;
568			ROMBaseDiff = (uae_u32)ROMBaseHost - (uae_u32)ROMBaseMac;
569			FrameBaseDiff = (uae_u32)MacFrameBaseHost - (uae_u32)MacFrameBaseMac;
570
571			// Map RAM and ROM
572	cebix	1.1	if (TwentyFourBitAddressing) {
573			map_banks(&ram24_bank, RAMBaseMac >> 16, ram_size >> 16);
574			map_banks(&rom24_bank, ROMBaseMac >> 16, ROMSize >> 16);
575			} else {
576			map_banks(&ram_bank, RAMBaseMac >> 16, ram_size >> 16);
577			map_banks(&rom_bank, ROMBaseMac >> 16, ROMSize >> 16);
578			}
579
580	cebix	1.2	// Map frame buffer
581	cebix	1.1	switch (MacFrameLayout) {
582			case FLAYOUT_DIRECT:
583			map_banks(&frame_direct_bank, MacFrameBaseMac >> 16, (MacFrameSize >> 16) + 1);
584			break;
585			case FLAYOUT_HOST_555:
586			map_banks(&frame_host_555_bank, MacFrameBaseMac >> 16, (MacFrameSize >> 16) + 1);
587			break;
588			case FLAYOUT_HOST_565:
589			map_banks(&frame_host_565_bank, MacFrameBaseMac >> 16, (MacFrameSize >> 16) + 1);
590			break;
591			case FLAYOUT_HOST_888:
592			map_banks(&frame_host_888_bank, MacFrameBaseMac >> 16, (MacFrameSize >> 16) + 1);
593			break;
594			}
595			}
596
597			void map_banks(addrbank *bank, int start, int size)
598			{
599			int bnr;
600			unsigned long int hioffs = 0, endhioffs = 0x100;
601
602			if (start >= 0x100) {
603			for (bnr = start; bnr < start + size; bnr++)
604			put_mem_bank (bnr << 16, bank);
605			return;
606			}
607			if (TwentyFourBitAddressing) endhioffs = 0x10000;
608			for (hioffs = 0; hioffs < endhioffs; hioffs += 0x100)
609			for (bnr = start; bnr < start+size; bnr++)
610			put_mem_bank((bnr + hioffs) << 16, bank);
611			}
612	gbeauche	1.3
613			#endif /* !REAL_ADDRESSING && !DIRECT_ADDRESSING */
614