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WinUAE/savestate.cpp
Toni Wilen 9bd3fb205a fs-uae portability patch
2012-05-13 17:33:52 +03:00

2024 lines
44 KiB
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/*
* UAE - The Un*x Amiga Emulator
*
* Save/restore emulator state
*
* (c) 1999-2001 Toni Wilen
*
* see below for ASF-structure
*/
/* Features:
*
* - full CPU state (68000/68010/68020/68030/68040/68060)
* - FPU (68881/68882/68040/68060)
* - full CIA-A and CIA-B state (with all internal registers)
* - saves all custom registers and audio internal state.
* - Chip, Bogo, Fast, Z3 and Picasso96 RAM supported
* - disk drive type, imagefile, track and motor state
* - Kickstart ROM version, address and size is saved. This data is not used during restore yet.
* - Action Replay state is saved
*/
/* Notes:
*
* - blitter state is not saved, blitter is forced to finish immediately if it
* was active
* - disk DMA state is completely saved
* - does not ask for statefile name and description. Currently uses DF0's disk
* image name (".adf" is replaced with ".asf")
* - only Amiga state is restored, harddisk support, autoconfig, expansion boards etc..
* are not saved/restored (and probably never will).
* - use this for saving games that can't be saved to disk
*/
/* Usage :
*
* save:
*
* set savestate_state = STATE_DOSAVE, savestate_filename = "..."
*
* restore:
*
* set savestate_state = STATE_DORESTORE, savestate_filename = "..."
*
*/
#define OPEN_LOG 0
#include "sysconfig.h"
#include "sysdeps.h"
#include "options.h"
#include "memory.h"
#include "zfile.h"
#include "ar.h"
#include "autoconf.h"
#include "custom.h"
#include "newcpu.h"
#include "savestate.h"
#include "uae.h"
#include "gui.h"
#include "audio.h"
#include "filesys.h"
#include "inputrecord.h"
#include "disk.h"
int savestate_state = 0;
static int savestate_first_capture;
static bool new_blitter = false;
static int replaycounter;
struct zfile *savestate_file;
static int savestate_docompress, savestate_specialdump, savestate_nodialogs;
TCHAR savestate_fname[MAX_DPATH];
#define STATEFILE_ALLOC_SIZE 600000
static int statefile_alloc;
static int staterecords_max = 1000;
static int staterecords_first = 0;
static struct zfile *staterecord_statefile;
struct staterecord
{
int len;
int inuse;
uae_u8 *cpu;
uae_u8 *data;
uae_u8 *end;
int inprecoffset;
};
static struct staterecord **staterecords;
static void state_incompatible_warn (void)
{
static int warned;
int dowarn = 0;
int i;
#ifdef BSDSOCKET
if (currprefs.socket_emu)
dowarn = 1;
#endif
#ifdef UAESERIAL
if (currprefs.uaeserial)
dowarn = 1;
#endif
#ifdef SCSIEMU
if (currprefs.scsi)
dowarn = 1;
#endif
#ifdef CATWEASEL
if (currprefs.catweasel)
dowarn = 1;
#endif
#ifdef FILESYS
for(i = 0; i < currprefs.mountitems; i++) {
struct mountedinfo mi;
int type = get_filesys_unitconfig (&currprefs, i, &mi);
if (mi.ismounted && type != FILESYS_VIRTUAL && type != FILESYS_HARDFILE && type != FILESYS_HARDFILE_RDB)
dowarn = 1;
}
#endif
if (!warned && dowarn) {
warned = 1;
notify_user (NUMSG_STATEHD);
}
}
/* functions for reading/writing bytes, shorts and longs in big-endian
* format independent of host machine's endianess */
static uae_u8 *storepos;
void save_store_pos_func (uae_u8 **dstp)
{
storepos = *dstp;
*dstp += 4;
}
void save_store_size_func (uae_u8 **dstp)
{
uae_u8 *p = storepos;
save_u32_func (&p, *dstp - storepos);
}
void restore_store_pos_func (uae_u8 **srcp)
{
storepos = *srcp;
*srcp += 4;
}
void restore_store_size_func (uae_u8 **srcp)
{
uae_u8 *p = storepos;
uae_u32 len = restore_u32_func (&p);
*srcp = storepos + len;
}
void save_u32_func (uae_u8 **dstp, uae_u32 v)
{
uae_u8 *dst = *dstp;
*dst++ = (uae_u8)(v >> 24);
*dst++ = (uae_u8)(v >> 16);
*dst++ = (uae_u8)(v >> 8);
*dst++ = (uae_u8)(v >> 0);
*dstp = dst;
}
void save_u64_func (uae_u8 **dstp, uae_u64 v)
{
save_u32_func (dstp, (uae_u32)(v >> 32));
save_u32_func (dstp, (uae_u32)v);
}
void save_u16_func (uae_u8 **dstp, uae_u16 v)
{
uae_u8 *dst = *dstp;
*dst++ = (uae_u8)(v >> 8);
*dst++ = (uae_u8)(v >> 0);
*dstp = dst;
}
void save_u8_func (uae_u8 **dstp, uae_u8 v)
{
uae_u8 *dst = *dstp;
*dst++ = v;
*dstp = dst;
}
void save_string_func (uae_u8 **dstp, const TCHAR *from)
{
uae_u8 *dst = *dstp;
char *s, *s2;
s2 = s = uutf8 (from);
while (s && *s)
*dst++ = *s++;
*dst++ = 0;
*dstp = dst;
xfree (s2);
}
void save_path_func (uae_u8 **dstp, const TCHAR *from, int type)
{
save_string_func (dstp, from);
}
uae_u32 restore_u32_func (uae_u8 **dstp)
{
uae_u32 v;
uae_u8 *dst = *dstp;
v = (dst[0] << 24) | (dst[1] << 16) | (dst[2] << 8) | (dst[3]);
*dstp = dst + 4;
return v;
}
uae_u64 restore_u64_func (uae_u8 **dstp)
{
uae_u64 v;
v = restore_u32_func (dstp);
v <<= 32;
v |= restore_u32_func (dstp);
return v;
}
uae_u16 restore_u16_func (uae_u8 **dstp)
{
uae_u16 v;
uae_u8 *dst = *dstp;
v=(dst[0] << 8) | (dst[1]);
*dstp = dst + 2;
return v;
}
uae_u8 restore_u8_func (uae_u8 **dstp)
{
uae_u8 v;
uae_u8 *dst = *dstp;
v = dst[0];
*dstp = dst + 1;
return v;
}
TCHAR *restore_string_func (uae_u8 **dstp)
{
int len;
uae_u8 v;
uae_u8 *dst = *dstp;
char *top, *to;
TCHAR *s;
len = strlen ((char*)dst) + 1;
top = to = xmalloc (char, len);
do {
v = *dst++;
*top++ = v;
} while (v);
*dstp = dst;
s = utf8u (to);
xfree (to);
return s;
}
TCHAR *restore_path_func (uae_u8 **dstp, int type)
{
TCHAR *newpath;
TCHAR *s;
TCHAR *out = NULL;
TCHAR tmp[MAX_DPATH], tmp2[MAX_DPATH];
s = restore_string_func (dstp);
if (s[0] == 0)
return s;
if (zfile_exists (s))
return s;
if (type == SAVESTATE_PATH_HD)
return s;
getfilepart (tmp, sizeof tmp / sizeof (TCHAR), s);
if (zfile_exists (tmp)) {
xfree (s);
return my_strdup (tmp);
}
for (int i = 0; i < MAX_PATHS; i++) {
newpath = NULL;
if (type == SAVESTATE_PATH_FLOPPY)
newpath = currprefs.path_floppy.path[i];
else if (type == SAVESTATE_PATH_VDIR || type == SAVESTATE_PATH_HDF)
newpath = currprefs.path_hardfile.path[i];
else if (type == SAVESTATE_PATH_CD)
newpath = currprefs.path_cd.path[i];
if (newpath == NULL || newpath[0] == 0)
break;
_tcscpy (tmp2, newpath);
fixtrailing (tmp2);
_tcscat (tmp2, tmp);
fullpath (tmp2, sizeof tmp2 / sizeof (TCHAR));
if (zfile_exists (tmp2)) {
xfree (s);
return my_strdup (tmp2);
}
}
getpathpart (tmp2, sizeof tmp2 / sizeof (TCHAR), savestate_fname);
_tcscat (tmp2, tmp);
if (zfile_exists (tmp2)) {
xfree (s);
return my_strdup (tmp2);
}
return s;
}
/* read and write IFF-style hunks */
static void save_chunk (struct zfile *f, uae_u8 *chunk, size_t len, TCHAR *name, int compress)
{
uae_u8 tmp[8], *dst;
uae_u8 zero[4]= { 0, 0, 0, 0 };
uae_u32 flags;
size_t pos;
size_t chunklen, len2;
char *s;
if (!chunk)
return;
if (compress < 0) {
zfile_fwrite (chunk, 1, len, f);
return;
}
/* chunk name */
s = ua (name);
zfile_fwrite (s, 1, 4, f);
xfree (s);
pos = zfile_ftell (f);
/* chunk size */
dst = &tmp[0];
chunklen = len + 4 + 4 + 4;
save_u32 (chunklen);
zfile_fwrite (&tmp[0], 1, 4, f);
/* chunk flags */
flags = 0;
dst = &tmp[0];
save_u32 (flags | compress);
zfile_fwrite (&tmp[0], 1, 4, f);
/* chunk data */
if (compress) {
int tmplen = len;
size_t opos;
dst = &tmp[0];
save_u32 (len);
opos = zfile_ftell (f);
zfile_fwrite (&tmp[0], 1, 4, f);
len = zfile_zcompress (f, chunk, len);
if (len > 0) {
zfile_fseek (f, pos, SEEK_SET);
dst = &tmp[0];
save_u32 (len + 4 + 4 + 4 + 4);
zfile_fwrite (&tmp[0], 1, 4, f);
zfile_fseek (f, 0, SEEK_END);
} else {
len = tmplen;
compress = 0;
zfile_fseek (f, opos, SEEK_SET);
dst = &tmp[0];
save_u32 (flags);
zfile_fwrite (&tmp[0], 1, 4, f);
}
}
if (!compress)
zfile_fwrite (chunk, 1, len, f);
/* alignment */
len2 = 4 - (len & 3);
if (len2)
zfile_fwrite (zero, 1, len2, f);
write_log (_T("Chunk '%s' chunk size %d (%d)\n"), name, chunklen, len);
}
static uae_u8 *restore_chunk (struct zfile *f, TCHAR *name, size_t *len, size_t *totallen, size_t *filepos)
{
uae_u8 tmp[6], dummy[4], *mem, *src;
uae_u32 flags;
int len2;
*totallen = 0;
/* chunk name */
zfile_fread (tmp, 1, 4, f);
tmp[4] = 0;
au_copy (name, 5, (char*)tmp);
/* chunk size */
zfile_fread (tmp, 1, 4, f);
src = tmp;
len2 = restore_u32 () - 4 - 4 - 4;
if (len2 < 0)
len2 = 0;
*len = len2;
if (len2 == 0) {
*filepos = zfile_ftell (f);
return 0;
}
/* chunk flags */
zfile_fread (tmp, 1, 4, f);
src = tmp;
flags = restore_u32 ();
*totallen = *len;
if (flags & 1) {
zfile_fread (tmp, 1, 4, f);
src = tmp;
*totallen = restore_u32 ();
*filepos = zfile_ftell (f) - 4 - 4 - 4;
len2 -= 4;
} else {
*filepos = zfile_ftell (f) - 4 - 4;
}
/* chunk data. RAM contents will be loaded during the reset phase,
no need to malloc multiple megabytes here. */
if (_tcscmp (name, _T("CRAM")) != 0
&& _tcscmp (name, _T("BRAM")) != 0
&& _tcscmp (name, _T("FRAM")) != 0
&& _tcscmp (name, _T("ZRAM")) != 0
&& _tcscmp (name, _T("ZCRM")) != 0
&& _tcscmp (name, _T("PRAM")) != 0
&& _tcscmp (name, _T("A3K1")) != 0
&& _tcscmp (name, _T("A3K2")) != 0)
{
/* extra bytes at the end needed to handle old statefiles that now have new fields */
mem = xcalloc (uae_u8, *totallen + 100);
if (!mem)
return NULL;
if (flags & 1) {
zfile_zuncompress (mem, *totallen, f, len2);
} else {
zfile_fread (mem, 1, len2, f);
}
} else {
mem = 0;
zfile_fseek (f, len2, SEEK_CUR);
}
/* alignment */
len2 = 4 - (len2 & 3);
if (len2)
zfile_fread (dummy, 1, len2, f);
return mem;
}
void restore_ram (size_t filepos, uae_u8 *memory)
{
uae_u8 tmp[8];
uae_u8 *src = tmp;
int size, fullsize;
uae_u32 flags;
if (filepos == 0 || memory == NULL)
return;
zfile_fseek (savestate_file, filepos, SEEK_SET);
zfile_fread (tmp, 1, sizeof tmp, savestate_file);
size = restore_u32 ();
flags = restore_u32 ();
size -= 4 + 4 + 4;
if (flags & 1) {
zfile_fread (tmp, 1, 4, savestate_file);
src = tmp;
fullsize = restore_u32 ();
size -= 4;
zfile_zuncompress (memory, fullsize, savestate_file, size);
} else {
zfile_fread (memory, 1, size, savestate_file);
}
}
static uae_u8 *restore_log (uae_u8 *src)
{
#if OPEN_LOG > 0
TCHAR *s = utf8u (src);
write_log (_T("%s\n"), s);
xfree (s);
#endif
src += strlen ((char*)src) + 1;
return src;
}
static void restore_header (uae_u8 *src)
{
TCHAR *emuname, *emuversion, *description;
restore_u32 ();
emuname = restore_string ();
emuversion = restore_string ();
description = restore_string ();
write_log (_T("Saved with: '%s %s', description: '%s'\n"),
emuname, emuversion, description);
xfree (description);
xfree (emuversion);
xfree (emuname);
}
/* restore all subsystems */
void restore_state (const TCHAR *filename)
{
struct zfile *f;
uae_u8 *chunk,*end;
TCHAR name[5];
size_t len, totallen;
size_t filepos, filesize;
int z3num;
chunk = 0;
f = zfile_fopen (filename, _T("rb"), ZFD_NORMAL);
if (!f)
goto error;
zfile_fseek (f, 0, SEEK_END);
filesize = zfile_ftell (f);
zfile_fseek (f, 0, SEEK_SET);
savestate_state = STATE_RESTORE;
savestate_init ();
chunk = restore_chunk (f, name, &len, &totallen, &filepos);
if (!chunk || _tcsncmp (name, _T("ASF "), 4)) {
write_log (_T("%s is not an AmigaStateFile\n"), filename);
goto error;
}
write_log (_T("STATERESTORE:\n"));
config_changed = 1;
savestate_file = f;
restore_header (chunk);
xfree (chunk);
changed_prefs.bogomem_size = 0;
changed_prefs.chipmem_size = 0;
changed_prefs.fastmem_size = 0;
changed_prefs.z3fastmem_size = 0;
changed_prefs.z3fastmem2_size = 0;
changed_prefs.mbresmem_low_size = 0;
changed_prefs.mbresmem_high_size = 0;
z3num = 0;
for (;;) {
name[0] = 0;
chunk = end = restore_chunk (f, name, &len, &totallen, &filepos);
write_log (_T("Chunk '%s' size %d (%d)\n"), name, len, totallen);
if (!_tcscmp (name, _T("END "))) {
#ifdef _DEBUG
if (filesize > filepos + 8)
continue;
#endif
break;
}
if (!_tcscmp (name, _T("CRAM"))) {
restore_cram (totallen, filepos);
continue;
} else if (!_tcscmp (name, _T("BRAM"))) {
restore_bram (totallen, filepos);
continue;
} else if (!_tcscmp (name, _T("A3K1"))) {
restore_a3000lram (totallen, filepos);
continue;
} else if (!_tcscmp (name, _T("A3K2"))) {
restore_a3000hram (totallen, filepos);
continue;
#ifdef AUTOCONFIG
} else if (!_tcscmp (name, _T("FRAM"))) {
restore_fram (totallen, filepos);
continue;
} else if (!_tcscmp (name, _T("ZRAM"))) {
restore_zram (totallen, filepos, z3num++);
continue;
} else if (!_tcscmp (name, _T("ZCRM"))) {
restore_zram (totallen, filepos, -1);
continue;
} else if (!_tcscmp (name, _T("BORO"))) {
restore_bootrom (totallen, filepos);
continue;
#endif
#ifdef PICASSO96
} else if (!_tcscmp (name, _T("PRAM"))) {
restore_pram (totallen, filepos);
continue;
#endif
} else if (!_tcscmp (name, _T("CYCS"))) {
end = restore_cycles (chunk);
} else if (!_tcscmp (name, _T("CPU "))) {
end = restore_cpu (chunk);
} else if (!_tcscmp (name, _T("CPUX")))
end = restore_cpu_extra (chunk);
else if (!_tcscmp (name, _T("CPUT")))
end = restore_cpu_trace (chunk);
#ifdef FPUEMU
else if (!_tcscmp (name, _T("FPU ")))
end = restore_fpu (chunk);
#endif
#ifdef MMUEMU
else if (!_tcscmp (name, _T("MMU ")))
end = restore_mmu (chunk);
#endif
else if (!_tcscmp (name, _T("AGAC")))
end = restore_custom_agacolors (chunk);
else if (!_tcscmp (name, _T("SPR0")))
end = restore_custom_sprite (0, chunk);
else if (!_tcscmp (name, _T("SPR1")))
end = restore_custom_sprite (1, chunk);
else if (!_tcscmp (name, _T("SPR2")))
end = restore_custom_sprite (2, chunk);
else if (!_tcscmp (name, _T("SPR3")))
end = restore_custom_sprite (3, chunk);
else if (!_tcscmp (name, _T("SPR4")))
end = restore_custom_sprite (4, chunk);
else if (!_tcscmp (name, _T("SPR5")))
end = restore_custom_sprite (5, chunk);
else if (!_tcscmp (name, _T("SPR6")))
end = restore_custom_sprite (6, chunk);
else if (!_tcscmp (name, _T("SPR7")))
end = restore_custom_sprite (7, chunk);
else if (!_tcscmp (name, _T("CIAA")))
end = restore_cia (0, chunk);
else if (!_tcscmp (name, _T("CIAB")))
end = restore_cia (1, chunk);
else if (!_tcscmp (name, _T("CHIP")))
end = restore_custom (chunk);
else if (!_tcscmp (name, _T("CINP")))
end = restore_input (chunk);
else if (!_tcscmp (name, _T("CHPX")))
end = restore_custom_extra (chunk);
else if (!_tcscmp (name, _T("CHPD")))
end = restore_custom_event_delay (chunk);
else if (!_tcscmp (name, _T("AUD0")))
end = restore_audio (0, chunk);
else if (!_tcscmp (name, _T("AUD1")))
end = restore_audio (1, chunk);
else if (!_tcscmp (name, _T("AUD2")))
end = restore_audio (2, chunk);
else if (!_tcscmp (name, _T("AUD3")))
end = restore_audio (3, chunk);
else if (!_tcscmp (name, _T("BLIT")))
end = restore_blitter (chunk);
else if (!_tcscmp (name, _T("BLTX")))
end = restore_blitter_new (chunk);
else if (!_tcscmp (name, _T("DISK")))
end = restore_floppy (chunk);
else if (!_tcscmp (name, _T("DSK0")))
end = restore_disk (0, chunk);
else if (!_tcscmp (name, _T("DSK1")))
end = restore_disk (1, chunk);
else if (!_tcscmp (name, _T("DSK2")))
end = restore_disk (2, chunk);
else if (!_tcscmp (name, _T("DSK3")))
end = restore_disk (3, chunk);
else if (!_tcscmp (name, _T("DSD0")))
end = restore_disk2 (0, chunk);
else if (!_tcscmp (name, _T("DSD1")))
end = restore_disk2 (1, chunk);
else if (!_tcscmp (name, _T("DSD2")))
end = restore_disk2 (2, chunk);
else if (!_tcscmp (name, _T("DSD3")))
end = restore_disk2 (3, chunk);
else if (!_tcscmp (name, _T("KEYB")))
end = restore_keyboard (chunk);
#ifdef AUTOCONFIG
else if (!_tcscmp (name, _T("EXPA")))
end = restore_expansion (chunk);
#endif
else if (!_tcscmp (name, _T("ROM ")))
end = restore_rom (chunk);
#ifdef PICASSO96
else if (!_tcscmp (name, _T("P96 ")))
end = restore_p96 (chunk);
#endif
#ifdef ACTION_REPLAY
else if (!_tcscmp (name, _T("ACTR")))
end = restore_action_replay (chunk);
else if (!_tcscmp (name, _T("HRTM")))
end = restore_hrtmon (chunk);
#endif
#ifdef FILESYS
else if (!_tcscmp (name, _T("FSYS")))
end = restore_filesys (chunk);
else if (!_tcscmp (name, _T("FSYC")))
end = restore_filesys_common (chunk);
#endif
#ifdef CD32
else if (!_tcscmp (name, _T("CD32")))
end = restore_akiko (chunk);
#endif
#ifdef CDTV
else if (!_tcscmp (name, _T("CDTV")))
end = restore_cdtv (chunk);
else if (!_tcscmp (name, _T("DMAC")))
end = restore_dmac (chunk);
#endif
else if (!_tcscmp (name, _T("GAYL")))
end = restore_gayle (chunk);
else if (!_tcscmp (name, _T("IDE ")))
end = restore_ide (chunk);
else if (!_tcsncmp (name, _T("CDU"), 3))
end = restore_cd (name[3] - '0', chunk);
#ifdef A2065
else if (!_tcsncmp (name, _T("2065"), 4))
end = restore_a2065 (chunk);
#endif
else if (!_tcsncmp (name, _T("DMWP"), 4))
end = restore_debug_memwatch (chunk);
else if (!_tcscmp (name, _T("CONF")))
end = restore_configuration (chunk);
else if (!_tcscmp (name, _T("LOG ")))
end = restore_log (chunk);
else {
end = chunk + len;
write_log (_T("unknown chunk '%s' size %d bytes\n"), name, len);
}
if (end == NULL)
write_log (_T("Chunk '%s', size %d bytes was not accepted!\n"),
name, len);
else if (totallen != end - chunk)
write_log (_T("Chunk '%s' total size %d bytes but read %d bytes!\n"),
name, totallen, end - chunk);
xfree (chunk);
}
target_addtorecent (filename, 0);
return;
error:
savestate_state = 0;
savestate_file = 0;
if (chunk)
xfree (chunk);
if (f)
zfile_fclose (f);
}
void savestate_restore_finish (void)
{
if (!isrestore ())
return;
zfile_fclose (savestate_file);
savestate_file = 0;
restore_cpu_finish ();
restore_audio_finish ();
restore_disk_finish ();
restore_blitter_finish ();
restore_akiko_finish ();
#ifdef CDTV
restore_cdtv_finish ();
#endif
#ifdef PICASSO96
restore_p96_finish ();
#endif
#ifdef A2065
restore_a2065_finish ();
#endif
restore_cia_finish ();
restore_debug_memwatch_finish ();
savestate_state = 0;
init_hz_full ();
audio_activate ();
}
/* 1=compressed,2=not compressed,3=ram dump,4=audio dump */
void savestate_initsave (const TCHAR *filename, int mode, int nodialogs, bool save)
{
if (filename == NULL) {
savestate_fname[0] = 0;
savestate_docompress = 0;
savestate_specialdump = 0;
savestate_nodialogs = 0;
return;
}
_tcscpy (savestate_fname, filename);
savestate_docompress = (mode == 1) ? 1 : 0;
savestate_specialdump = (mode == 3) ? 1 : (mode == 4) ? 2 : 0;
savestate_nodialogs = nodialogs;
new_blitter = false;
if (save) {
savestate_free ();
inprec_close (true);
}
}
static void save_rams (struct zfile *f, int comp)
{
uae_u8 *dst;
int len;
dst = save_cram (&len);
save_chunk (f, dst, len, _T("CRAM"), comp);
dst = save_bram (&len);
save_chunk (f, dst, len, _T("BRAM"), comp);
dst = save_a3000lram (&len);
save_chunk (f, dst, len, _T("A3K1"), comp);
dst = save_a3000hram (&len);
save_chunk (f, dst, len, _T("A3K2"), comp);
#ifdef AUTOCONFIG
dst = save_fram (&len);
save_chunk (f, dst, len, _T("FRAM"), comp);
dst = save_zram (&len, 0);
save_chunk (f, dst, len, _T("ZRAM"), comp);
dst = save_zram (&len, 1);
save_chunk (f, dst, len, _T("ZRAM"), comp);
dst = save_zram (&len, -1);
save_chunk (f, dst, len, _T("ZCRM"), comp);
dst = save_bootrom (&len);
save_chunk (f, dst, len, _T("BORO"), comp);
#endif
#ifdef PICASSO96
dst = save_pram (&len);
save_chunk (f, dst, len, _T("PRAM"), comp);
#endif
}
/* Save all subsystems */
static int save_state_internal (struct zfile *f, const TCHAR *description, int comp, bool savepath)
{
uae_u8 endhunk[] = { 'E', 'N', 'D', ' ', 0, 0, 0, 8 };
uae_u8 header[1000];
TCHAR tmp[100];
uae_u8 *dst;
TCHAR name[5];
int i, len;
write_log (_T("STATESAVE (%s):\n"), f ? zfile_getname (f) : _T("<internal>"));
dst = header;
save_u32 (0);
save_string (_T("UAE"));
_stprintf (tmp, _T("%d.%d.%d"), UAEMAJOR, UAEMINOR, UAESUBREV);
save_string (tmp);
save_string (description);
save_chunk (f, header, dst-header, _T("ASF "), 0);
dst = save_cycles (&len, 0);
save_chunk (f, dst, len, _T("CYCS"), 0);
xfree (dst);
dst = save_cpu (&len, 0);
save_chunk (f, dst, len, _T("CPU "), 0);
xfree (dst);
dst = save_cpu_extra (&len, 0);
save_chunk (f, dst, len, _T("CPUX"), 0);
xfree (dst);
dst = save_cpu_trace (&len, 0);
save_chunk (f, dst, len, _T("CPUT"), 0);
xfree (dst);
#ifdef FPUEMU
dst = save_fpu (&len,0 );
save_chunk (f, dst, len, _T("FPU "), 0);
xfree (dst);
#endif
#ifdef MMUEMU
dst = save_mmu (&len, 0);
save_chunk (f, dst, len, _T("MMU "), 0);
xfree (dst);
#endif
_tcscpy(name, _T("DSKx"));
for (i = 0; i < 4; i++) {
dst = save_disk (i, &len, 0, savepath);
if (dst) {
name[3] = i + '0';
save_chunk (f, dst, len, name, 0);
xfree (dst);
}
}
_tcscpy(name, _T("DSDx"));
for (i = 0; i < 4; i++) {
dst = save_disk2 (i, &len, 0);
if (dst) {
name[3] = i + '0';
save_chunk (f, dst, len, name, comp);
xfree (dst);
}
}
dst = save_floppy (&len, 0);
save_chunk (f, dst, len, _T("DISK"), 0);
xfree (dst);
dst = save_custom (&len, 0, 0);
save_chunk (f, dst, len, _T("CHIP"), 0);
xfree (dst);
dst = save_custom_extra (&len, 0);
save_chunk (f, dst, len, _T("CHPX"), 0);
xfree (dst);
dst = save_custom_event_delay (&len, 0);
save_chunk (f, dst, len, _T("CHPD"), 0);
xfree (dst);
dst = save_blitter_new (&len, 0);
save_chunk (f, dst, len, _T("BLTX"), 0);
xfree (dst);
if (new_blitter == false) {
dst = save_blitter (&len, 0);
save_chunk (f, dst, len, _T("BLIT"), 0);
xfree (dst);
}
dst = save_input (&len, 0);
save_chunk (f, dst, len, _T("CINP"), 0);
xfree (dst);
dst = save_custom_agacolors (&len, 0);
save_chunk (f, dst, len, _T("AGAC"), 0);
xfree (dst);
_tcscpy (name, _T("SPRx"));
for (i = 0; i < 8; i++) {
dst = save_custom_sprite (i, &len, 0);
name[3] = i + '0';
save_chunk (f, dst, len, name, 0);
xfree (dst);
}
_tcscpy (name, _T("AUDx"));
for (i = 0; i < 4; i++) {
dst = save_audio (i, &len, 0);
name[3] = i + '0';
save_chunk (f, dst, len, name, 0);
xfree (dst);
}
dst = save_cia (0, &len, 0);
save_chunk (f, dst, len, _T("CIAA"), 0);
xfree (dst);
dst = save_cia (1, &len, 0);
save_chunk (f, dst, len, _T("CIAB"), 0);
xfree (dst);
dst = save_keyboard (&len, NULL);
save_chunk (f, dst, len, _T("KEYB"), 0);
xfree (dst);
#ifdef AUTOCONFIG
dst = save_expansion (&len, 0);
save_chunk (f, dst, len, _T("EXPA"), 0);
#endif
#ifdef A2065
dst = save_a2065 (&len, NULL);
save_chunk (f, dst, len, _T("2065"), 0);
#endif
#ifdef PICASSO96
dst = save_p96 (&len, 0);
save_chunk (f, dst, len, _T("P96 "), 0);
#endif
save_rams (f, comp);
dst = save_rom (1, &len, 0);
do {
if (!dst)
break;
save_chunk (f, dst, len, _T("ROM "), 0);
xfree (dst);
} while ((dst = save_rom (0, &len, 0)));
#ifdef CD32
dst = save_akiko (&len, NULL);
save_chunk (f, dst, len, _T("CD32"), 0);
xfree (dst);
#endif
#ifdef CDTV
dst = save_cdtv (&len, NULL);
save_chunk (f, dst, len, _T("CDTV"), 0);
xfree (dst);
dst = save_dmac (&len, NULL);
save_chunk (f, dst, len, _T("DMAC"), 0);
xfree (dst);
#endif
#ifdef ACTION_REPLAY
dst = save_action_replay (&len, NULL);
save_chunk (f, dst, len, _T("ACTR"), comp);
dst = save_hrtmon (&len, NULL);
save_chunk (f, dst, len, _T("HRTM"), comp);
#endif
#ifdef FILESYS
dst = save_filesys_common (&len);
if (dst) {
save_chunk (f, dst, len, _T("FSYC"), 0);
for (i = 0; i < nr_units (); i++) {
dst = save_filesys (i, &len);
if (dst) {
save_chunk (f, dst, len, _T("FSYS"), 0);
xfree (dst);
}
}
}
#endif
dst = save_gayle (&len, NULL);
if (dst) {
save_chunk (f, dst, len, _T("GAYL"), 0);
xfree(dst);
}
for (i = 0; i < 4; i++) {
dst = save_ide (i, &len, NULL);
if (dst) {
save_chunk (f, dst, len, _T("IDE "), 0);
xfree (dst);
}
}
for (i = 0; i < MAX_TOTAL_SCSI_DEVICES; i++) {
dst = save_cd (i, &len);
if (dst) {
_stprintf (name, _T("CDU%d"), i);
save_chunk (f, dst, len, name, 0);
}
}
dst = save_debug_memwatch (&len, NULL);
if (dst) {
save_chunk (f, dst, len, _T("DMWP"), 0);
xfree(dst);
}
/* add fake END tag, makes it easy to strip CONF and LOG hunks */
/* move this if you want to use CONF or LOG hunks when restoring state */
zfile_fwrite (endhunk, 1, 8, f);
dst = save_configuration (&len);
if (dst) {
save_chunk (f, dst, len, _T("CONF"), comp);
xfree(dst);
}
len = 30000;
dst = save_log (TRUE, &len);
if (dst) {
save_chunk (f, dst, len, _T("LOG "), comp);
xfree (dst);
}
zfile_fwrite (endhunk, 1, 8, f);
return 1;
}
int save_state (const TCHAR *filename, const TCHAR *description)
{
struct zfile *f;
int comp = savestate_docompress;
if (!savestate_specialdump && !savestate_nodialogs) {
state_incompatible_warn ();
if (!save_filesys_cando ()) {
gui_message (_T("Filesystem active. Try again later."));
return -1;
}
}
new_blitter = false;
savestate_nodialogs = 0;
custom_prepare_savestate ();
f = zfile_fopen (filename, _T("w+b"), 0);
if (!f)
return 0;
if (savestate_specialdump) {
size_t pos;
if (savestate_specialdump == 2)
write_wavheader (f, 0, 22050);
pos = zfile_ftell (f);
save_rams (f, -1);
if (savestate_specialdump == 2) {
int len, len2, i;
uae_u8 *tmp;
len = zfile_ftell (f) - pos;
tmp = xmalloc (uae_u8, len);
zfile_fseek(f, pos, SEEK_SET);
len2 = zfile_fread (tmp, 1, len, f);
for (i = 0; i < len2; i++)
tmp[i] += 0x80;
write_wavheader (f, len, 22050);
zfile_fwrite (tmp, len2, 1, f);
xfree (tmp);
}
zfile_fclose (f);
return 1;
}
int v = save_state_internal (f, description, comp, true);
if (v)
write_log (_T("Save of '%s' complete\n"), filename);
zfile_fclose (f);
savestate_state = 0;
return v;
}
void savestate_quick (int slot, int save)
{
int i, len = _tcslen (savestate_fname);
i = len - 1;
while (i >= 0 && savestate_fname[i] != '_')
i--;
if (i < len - 6 || i <= 0) { /* "_?.uss" */
i = len - 1;
while (i >= 0 && savestate_fname[i] != '.')
i--;
if (i <= 0) {
write_log (_T("savestate name skipped '%s'\n"), savestate_fname);
return;
}
}
_tcscpy (savestate_fname + i, _T(".uss"));
if (slot > 0)
_stprintf (savestate_fname + i, _T("_%d.uss"), slot);
if (save) {
write_log (_T("saving '%s'\n"), savestate_fname);
savestate_docompress = 1;
save_state (savestate_fname, _T(""));
} else {
if (!zfile_exists (savestate_fname)) {
write_log (_T("staterestore, file '%s' not found\n"), savestate_fname);
return;
}
savestate_state = STATE_DORESTORE;
write_log (_T("staterestore starting '%s'\n"), savestate_fname);
}
}
bool savestate_check (void)
{
if (vpos == 0 && !savestate_state) {
if (hsync_counter == 0 && input_play == INPREC_PLAY_NORMAL)
savestate_memorysave ();
savestate_capture (0);
}
if (savestate_state == STATE_DORESTORE) {
savestate_state = STATE_RESTORE;
return true;
} else if (savestate_state == STATE_DOREWIND) {
savestate_state = STATE_REWIND;
return true;
}
return false;
}
static int rewindmode;
static struct staterecord *canrewind (int pos)
{
if (pos < 0)
pos += staterecords_max;
if (!staterecords)
return 0;
if (staterecords[pos] == NULL)
return NULL;
if (staterecords[pos]->inuse == 0)
return NULL;
if ((pos + 1) % staterecords_max == staterecords_first)
return NULL;
return staterecords[pos];
}
int savestate_dorewind (int pos)
{
rewindmode = pos;
if (pos < 0)
pos = replaycounter - 1;
if (canrewind (pos)) {
savestate_state = STATE_DOREWIND;
write_log (_T("dorewind %d (%010d/%03d) -> %d\n"), replaycounter - 1, hsync_counter, vsync_counter, pos);
return 1;
}
return 0;
}
#if 0
void savestate_listrewind (void)
{
int i = replaycounter;
int cnt;
uae_u8 *p;
uae_u32 pc;
cnt = 1;
for (;;) {
struct staterecord *st;
st = &staterecords[i];
if (!st->start)
break;
p = st->cpu + 17 * 4;
pc = restore_u32_func (&p);
console_out_f (_T("%d: PC=%08X %c\n"), cnt, pc, regs.pc == pc ? '*' : ' ');
cnt++;
i--;
if (i < 0)
i += MAX_STATERECORDS;
}
}
#endif
void savestate_rewind (void)
{
int len, i, dummy;
uae_u8 *p, *p2;
struct staterecord *st;
int pos;
bool rewind = false;
if (hsync_counter % currprefs.statecapturerate <= 25 && rewindmode <= -2) {
pos = replaycounter - 2;
rewind = true;
} else {
pos = replaycounter - 1;
}
st = canrewind (pos);
if (!st) {
rewind = false;
pos = replaycounter - 1;
st = canrewind (pos);
if (!st)
return;
}
p = st->data;
p2 = st->end;
write_log (_T("rewinding %d -> %d\n"), replaycounter - 1, pos);
hsync_counter = restore_u32_func (&p);
vsync_counter = restore_u32_func (&p);
p = restore_cpu (p);
p = restore_cycles (p);
p = restore_cpu_extra (p);
if (restore_u32_func (&p))
p = restore_cpu_trace (p);
#ifdef FPUEMU
if (restore_u32_func (&p))
p = restore_fpu (p);
#endif
for (i = 0; i < 4; i++) {
p = restore_disk (i, p);
if (restore_u32_func (&p))
p = restore_disk2 (i, p);
}
p = restore_floppy (p);
p = restore_custom (p);
p = restore_custom_extra (p);
if (restore_u32_func (&p))
p = restore_custom_event_delay (p);
p = restore_blitter_new (p);
p = restore_custom_agacolors (p);
for (i = 0; i < 8; i++) {
p = restore_custom_sprite (i, p);
}
for (i = 0; i < 4; i++) {
p = restore_audio (i, p);
}
p = restore_cia (0, p);
p = restore_cia (1, p);
p = restore_keyboard (p);
p = restore_inputstate (p);
#ifdef AUTOCONFIG
p = restore_expansion (p);
#endif
#ifdef PICASSO96
if (restore_u32_func (&p))
p = restore_p96 (p);
#endif
len = restore_u32_func (&p);
memcpy (chipmemory, p, currprefs.chipmem_size > len ? len : currprefs.chipmem_size);
p += len;
len = restore_u32_func (&p);
memcpy (save_bram (&dummy), p, currprefs.bogomem_size > len ? len : currprefs.bogomem_size);
p += len;
#ifdef AUTOCONFIG
len = restore_u32_func (&p);
memcpy (save_fram (&dummy), p, currprefs.fastmem_size > len ? len : currprefs.fastmem_size);
p += len;
len = restore_u32_func (&p);
memcpy (save_zram (&dummy, 0), p, currprefs.z3fastmem_size > len ? len : currprefs.z3fastmem_size);
p += len;
#endif
#ifdef ACTION_REPLAY
if (restore_u32_func (&p))
p = restore_action_replay (p);
if (restore_u32_func (&p))
p = restore_hrtmon (p);
#endif
#ifdef CD32
if (restore_u32_func (&p))
p = restore_akiko (p);
#endif
#ifdef CDTV
if (restore_u32_func (&p))
p = restore_cdtv (p);
if (restore_u32_func (&p))
p = restore_dmac (p);
#endif
if (restore_u32_func (&p))
p = restore_gayle (p);
for (i = 0; i < 4; i++) {
if (restore_u32_func (&p))
p = restore_ide (p);
}
p += 4;
if (p != p2) {
gui_message (_T("reload failure, address mismatch %p != %p"), p, p2);
uae_reset (0);
return;
}
inprec_setposition (st->inprecoffset, pos);
write_log (_T("state %d restored. (%010d/%03d)\n"), pos, hsync_counter, vsync_counter);
if (rewind) {
replaycounter--;
if (replaycounter < 0)
replaycounter += staterecords_max;
st = canrewind (replaycounter);
st->inuse = 0;
}
}
#define BS 10000
STATIC_INLINE int bufcheck (struct staterecord *sr, uae_u8 *p, int len)
{
if (p - sr->data + BS + len >= sr->len)
return 1;
return 0;
}
void savestate_memorysave (void)
{
new_blitter = true;
// create real statefile in memory too for later saving
zfile_fclose (staterecord_statefile);
staterecord_statefile = zfile_fopen_empty (NULL, _T("statefile.inp.uss"));
if (staterecord_statefile)
save_state_internal (staterecord_statefile, _T("rerecording"), 1, false);
}
void savestate_capture (int force)
{
uae_u8 *p, *p2, *p3, *dst;
int i, len, tlen, retrycnt;
struct staterecord *st;
bool firstcapture = false;
#ifdef FILESYS
if (nr_units ())
return;
#endif
if (!staterecords)
return;
if (!input_record)
return;
if (currprefs.statecapturerate && hsync_counter == 0 && input_record == INPREC_RECORD_START && savestate_first_capture > 0) {
// first capture
force = true;
firstcapture = true;
} else if (savestate_first_capture < 0) {
force = true;
firstcapture = false;
}
if (!force) {
if (currprefs.statecapturerate <= 0)
return;
if (hsync_counter % currprefs.statecapturerate)
return;
}
savestate_first_capture = false;
retrycnt = 0;
retry2:
st = staterecords[replaycounter];
if (st == NULL) {
st = (struct staterecord*)xmalloc (uae_u8, statefile_alloc);
st->len = statefile_alloc;
} else if (retrycnt > 0) {
write_log (_T("realloc %d -> %d\n"), st->len, st->len + STATEFILE_ALLOC_SIZE);
st->len += STATEFILE_ALLOC_SIZE;
st = (struct staterecord*)xrealloc (uae_u8, st, st->len);
}
if (st->len > statefile_alloc)
statefile_alloc = st->len;
st->inuse = 0;
st->data = (uae_u8*)(st + 1);
staterecords[replaycounter] = st;
retrycnt++;
p = p2 = st->data;
tlen = 0;
save_u32_func (&p, hsync_counter);
save_u32_func (&p, vsync_counter);
tlen += 8;
if (bufcheck (st, p, 0))
goto retry;
st->cpu = p;
save_cpu (&len, p);
tlen += len;
p += len;
if (bufcheck (st, p, 0))
goto retry;
save_cycles (&len, p);
tlen += len;
p += len;
if (bufcheck (st, p, 0))
goto retry;
save_cpu_extra (&len, p);
tlen += len;
p += len;
if (bufcheck (st, p, 0))
goto retry;
p3 = p;
save_u32_func (&p, 0);
tlen += 4;
if (save_cpu_trace (&len, p)) {
save_u32_func (&p3, 1);
tlen += len;
p += len;
}
#ifdef FPUEMU
if (bufcheck (st, p, 0))
goto retry;
p3 = p;
save_u32_func (&p, 0);
tlen += 4;
if (save_fpu (&len, p)) {
save_u32_func (&p3, 1);
tlen += len;
p += len;
}
#endif
for (i = 0; i < 4; i++) {
if (bufcheck (st, p, 0))
goto retry;
save_disk (i, &len, p, true);
tlen += len;
p += len;
p3 = p;
save_u32_func (&p, 0);
tlen += 4;
if (save_disk2 (i, &len, p)) {
save_u32_func (&p3, 1);
tlen += len;
p += len;
}
}
if (bufcheck (st, p, 0))
goto retry;
save_floppy (&len, p);
tlen += len;
p += len;
if (bufcheck (st, p, 0))
goto retry;
save_custom (&len, p, 0);
tlen += len;
p += len;
if (bufcheck (st, p, 0))
goto retry;
save_custom_extra (&len, p);
tlen += len;
p += len;
if (bufcheck (st, p, 0))
goto retry;
p3 = p;
save_u32_func (&p, 0);
tlen += 4;
if (save_custom_event_delay (&len, p)) {
save_u32_func (&p3, 1);
tlen += len;
p += len;
}
if (bufcheck (st, p, 0))
goto retry;
save_blitter_new (&len, p);
tlen += len;
p += len;
if (bufcheck (st, p, 0))
goto retry;
save_custom_agacolors (&len, p);
tlen += len;
p += len;
for (i = 0; i < 8; i++) {
if (bufcheck (st, p, 0))
goto retry;
save_custom_sprite (i, &len, p);
tlen += len;
p += len;
}
for (i = 0; i < 4; i++) {
if (bufcheck (st, p, 0))
goto retry;
save_audio (i, &len, p);
tlen += len;
p += len;
}
if (bufcheck (st, p, len))
goto retry;
save_cia (0, &len, p);
tlen += len;
p += len;
if (bufcheck (st, p, len))
goto retry;
save_cia (1, &len, p);
tlen += len;
p += len;
if (bufcheck (st, p, len))
goto retry;
save_keyboard (&len, p);
tlen += len;
p += len;
if (bufcheck (st, p, len))
goto retry;
save_inputstate (&len, p);
tlen += len;
p += len;
#ifdef AUTOCONFIG
if (bufcheck (st, p, len))
goto retry;
save_expansion (&len, p);
tlen += len;
p += len;
#endif
#ifdef PICASSO96
if (bufcheck (st, p, 0))
goto retry;
p3 = p;
save_u32_func (&p, 0);
tlen += 4;
if (save_p96 (&len, p)) {
save_u32_func (&p3, 1);
tlen += len;
p += len;
}
#endif
dst = save_cram (&len);
if (bufcheck (st, p, len))
goto retry;
save_u32_func (&p, len);
memcpy (p, dst, len);
tlen += len + 4;
p += len;
dst = save_bram (&len);
if (bufcheck (st, p, len))
goto retry;
save_u32_func (&p, len);
memcpy (p, dst, len);
tlen += len + 4;
p += len;
#ifdef AUTOCONFIG
dst = save_fram (&len);
if (bufcheck (st, p, len))
goto retry;
save_u32_func (&p, len);
memcpy (p, dst, len);
tlen += len + 4;
p += len;
dst = save_zram (&len, 0);
if (bufcheck (st, p, len))
goto retry;
save_u32_func (&p, len);
memcpy (p, dst, len);
tlen += len + 4;
p += len;
#endif
#ifdef ACTION_REPLAY
if (bufcheck (st, p, 0))
goto retry;
p3 = p;
save_u32_func (&p, 0);
tlen += 4;
if (save_action_replay (&len, p)) {
save_u32_func (&p3, 1);
tlen += len;
p += len;
}
if (bufcheck (st, p, 0))
goto retry;
p3 = p;
save_u32_func (&p, 0);
tlen += 4;
if (save_hrtmon (&len, p)) {
save_u32_func (&p3, 1);
tlen += len;
p += len;
}
#endif
#ifdef CD32
if (bufcheck (st, p, 0))
goto retry;
p3 = p;
save_u32_func (&p, 0);
tlen += 4;
if (save_akiko (&len, p)) {
save_u32_func (&p3, 1);
tlen += len;
p += len;
}
#endif
#ifdef CDTV
if (bufcheck (st, p, 0))
goto retry;
p3 = p;
save_u32_func (&p, 0);
tlen += 4;
if (save_cdtv (&len, p)) {
save_u32_func (&p3, 1);
tlen += len;
p += len;
}
if (bufcheck (st, p, 0))
goto retry;
p3 = p;
save_u32_func (&p, 0);
tlen += 4;
if (save_dmac (&len, p)) {
save_u32_func (&p3, 1);
tlen += len;
p += len;
}
#endif
if (bufcheck (st, p, 0))
goto retry;
p3 = p;
save_u32_func (&p, 0);
tlen += 4;
if (save_gayle (&len, p)) {
save_u32_func (&p3, 1);
tlen += len;
p += len;
}
for (i = 0; i < 4; i++) {
if (bufcheck (st, p, 0))
goto retry;
p3 = p;
save_u32_func (&p, 0);
tlen += 4;
if (save_ide (i, &len, p)) {
save_u32_func (&p3, 1);
tlen += len;
p += len;
}
}
save_u32_func (&p, tlen);
st->end = p;
st->inuse = 1;
st->inprecoffset = inprec_getposition ();
replaycounter++;
if (replaycounter >= staterecords_max)
replaycounter -= staterecords_max;
if (replaycounter == staterecords_first) {
staterecords_first++;
if (staterecords_first >= staterecords_max)
staterecords_first -= staterecords_max;
}
write_log (_T("state capture %d (%010d/%03d,%d/%d) (%d bytes, alloc %d)\n"),
replaycounter, hsync_counter, vsync_counter,
hsync_counter % current_maxvpos (), current_maxvpos (),
st->end - st->data, statefile_alloc);
if (firstcapture) {
savestate_memorysave ();
input_record++;
for (i = 0; i < 4; i++) {
bool wp = true;
DISK_validate_filename (&currprefs, currprefs.floppyslots[i].df, false, &wp, NULL, NULL);
inprec_recorddiskchange (i, currprefs.floppyslots[i].df, wp);
}
input_record--;
}
return;
retry:
if (retrycnt < 10)
goto retry2;
write_log (_T("can't save, too small capture buffer or out of memory\n"));
return;
}
void savestate_free (void)
{
xfree (staterecords);
staterecords = NULL;
}
void savestate_capture_request (void)
{
savestate_first_capture = -1;
}
void savestate_init (void)
{
savestate_free ();
replaycounter = 0;
staterecords_max = currprefs.statecapturebuffersize;
staterecords = xcalloc (struct staterecord*, staterecords_max);
statefile_alloc = STATEFILE_ALLOC_SIZE;
if (input_record && savestate_state != STATE_DORESTORE) {
zfile_fclose (staterecord_statefile);
staterecord_statefile = NULL;
inprec_close (false);
inprec_open (NULL, NULL);
savestate_first_capture = 1;
}
}
void statefile_save_recording (const TCHAR *filename)
{
if (!staterecord_statefile)
return;
struct zfile *zf = zfile_fopen (filename, _T("wb"), 0);
if (zf) {
int len = zfile_size (staterecord_statefile);
uae_u8 *data = zfile_getdata (staterecord_statefile, 0, len);
zfile_fwrite (data, len, 1, zf);
xfree (data);
zfile_fclose (zf);
write_log (_T("input statefile '%s' saved\n"), filename);
}
}
/*
My (Toni Wilen <twilen@arabuusimiehet.com>)
proposal for Amiga-emulators' state-save format
Feel free to comment...
This is very similar to IFF-fileformat
Every hunk must end to 4 byte boundary,
fill with zero bytes if needed
version 0.8
HUNK HEADER (beginning of every hunk)
hunk name (4 ascii-characters)
hunk size (including header)
hunk flags
bit 0 = chunk contents are compressed with zlib (maybe RAM chunks only?)
HEADER
"ASF " (AmigaStateFile)
statefile version
emulator name ("uae", "fellow" etc..)
emulator version string (example: "0.8.15")
free user writable comment string
CPU
"CPU "
CPU model 4 (68000,68010,68020,68030,68040,68060)
CPU typeflags bit 0=EC-model or not, bit 31 = clock rate included
D0-D7 8*4=32
A0-A6 7*4=32
PC 4
unused 4
68000 prefetch (IRC) 2
68000 prefetch (IR) 2
USP 4
ISP 4
SR/CCR 2
flags 4 (bit 0=CPU was HALTed)
CPU specific registers
68000: SR/CCR is last saved register
68010: save also DFC,SFC and VBR
68020: all 68010 registers and CAAR,CACR and MSP
etc..
68010+:
DFC 4
SFC 4
VBR 4
68020+:
CAAR 4
CACR 4
MSP 4
68030+:
AC0 4
AC1 4
ACUSR 2
TT0 4
TT1 4
68040+:
ITT0 4
ITT1 4
DTT0 4
DTT1 4
TCR 4
URP 4
SRP 4
68060:
BUSCR 4
PCR 4
All:
Clock in KHz 4 (only if bit 31 in flags)
4 (spare, only if bit 31 in flags)
FPU (only if used)
"FPU "
FPU model 4 (68881/68882/68040/68060)
FPU typeflags 4 (bit 31 = clock rate included)
FP0-FP7 4+4+2 (80 bits)
FPCR 4
FPSR 4
FPIAR 4
Clock in KHz 4 (only if bit 31 in flags)
4 (spare, only if bit 31 in flags)
MMU (when and if MMU is supported in future..)
"MMU "
MMU model 4 (68040)
flags 4 (none defined yet)
CUSTOM CHIPS
"CHIP"
chipset flags 4 OCS=0,ECSAGNUS=1,ECSDENISE=2,AGA=4
ECSAGNUS and ECSDENISE can be combined
DFF000-DFF1FF 352 (0x120 - 0x17f and 0x0a0 - 0xdf excluded)
sprite registers (0x120 - 0x17f) saved with SPRx chunks
audio registers (0x0a0 - 0xdf) saved with AUDx chunks
AGA COLORS
"AGAC"
AGA color 8 banks * 32 registers *
registers LONG (XRGB) = 1024
SPRITE
"SPR0" - "SPR7"
SPRxPT 4
SPRxPOS 2
SPRxCTL 2
SPRxDATA 2
SPRxDATB 2
AGA sprite DATA/DATB 3 * 2 * 2
sprite "armed" status 1
sprites maybe armed in non-DMA mode
use bit 0 only, other bits are reserved
AUDIO
"AUD0" "AUD1" "AUD2" "AUD3"
audio state 1
machine mode
AUDxVOL 1
irq? 1
data_written? 1
internal AUDxLEN 2
AUDxLEN 2
internal AUDxPER 2
AUDxPER 2
internal AUDxLC 4
AUDxLC 4
evtime? 4
BLITTER
"BLIT"
internal blitter state
flags 4
bit 0=blitter active
bit 1=fill carry bit
internal ahold 4
internal bhold 4
internal hsize 2
internal vsize 2
CIA
"CIAA" and "CIAB"
BFE001-BFEF01 16*1 (CIAA)
BFD000-BFDF00 16*1 (CIAB)
internal registers
IRQ mask (ICR) 1 BYTE
timer latches 2 timers * 2 BYTES (LO/HI)
latched tod 3 BYTES (LO/MED/HI)
alarm 3 BYTES (LO/MED/HI)
flags 1 BYTE
bit 0=tod latched (read)
bit 1=tod stopped (write)
div10 counter 1 BYTE
FLOPPY DRIVES
"DSK0" "DSK1" "DSK2" "DSK3"
drive state
drive ID-word 4
state 1 (bit 0: motor on, bit 1: drive disabled, bit 2: current id bit)
rw-head track 1
dskready 1
id-mode 1 (ID mode bit number 0-31)
floppy information
bits from 4
beginning of track
CRC of disk-image 4 (used during restore to check if image
is correct)
disk-image null-terminated
file name
INTERNAL FLOPPY CONTROLLER STATUS
"DISK"
current DMA word 2
DMA word bit offset 1
WORDSYNC found 1 (no=0,yes=1)
hpos of next bit 1
DSKLENGTH status 0=off,1=written once,2=written twice
unused 2
RAM SPACE
"xRAM" (CRAM = chip, BRAM = bogo, FRAM = fast, ZRAM = Z3, P96 = RTG RAM, A3K1/A3K2 = MB RAM)
start address 4 ("bank"=chip/slow/fast etc..)
of RAM "bank"
RAM "bank" size 4
RAM flags 4 (bit 0 = zlib compressed)
RAM "bank" contents
ROM SPACE
"ROM "
ROM start 4
address
size of ROM 4
ROM type 4 KICK=0
ROM flags 4
ROM version 2
ROM revision 2
ROM CRC 4 see below
ROM-image ID-string null terminated, see below
path to rom image
ROM contents (Not mandatory, use hunk size to check if
this hunk contains ROM data or not)
Kickstart ROM:
ID-string is "Kickstart x.x"
ROM version: version in high word and revision in low word
Kickstart ROM version and revision can be found from ROM start
+ 12 (version) and +14 (revision)
ROM version and CRC is only meant for emulator to automatically
find correct image from its ROM-directory during state restore.
Usually saving ROM contents is not good idea.
ACTION REPLAY
"ACTR"
Model (1,2,3) 4
path to rom image
RAM space (depends on model)
ROM CRC 4
"CDx "
Flags 4 (bit 0 = scsi, bit 1 = ide, bit 2 = image)
Path (for example image file or drive letter)
END
hunk "END " ends, remember hunk size 8!
EMULATOR SPECIFIC HUNKS
Read only if "emulator name" in header is same as used emulator.
Maybe useful for configuration?
misc:
- save only at position 0,0 before triggering VBLANK interrupt
- all data must be saved in bigendian format
- should we strip all paths from image file names?
*/
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