/*
* Gets UAE Configuration
*/
static uae_u32 emulib_GetUaeConfig (uaecptr place)
{
int i;
put_long (place, UAEVERSION);
put_long (place + 4, allocated_chipmem);
put_long (place + 8, allocated_bogomem);
put_long (place + 12, allocated_fastmem);
put_long (place + 16, currprefs.gfx_framerate);
put_long (place + 20, currprefs.produce_sound);
put_long (place + 24, currprefs.jport0 | (currprefs.jport1 << 8));
put_long (place + 28, currprefs.keyboard_lang);
if (disk_empty (0))
put_byte (place + 32, 0);
else
put_byte (place + 32, 1);
if (disk_empty (1))
put_byte (place + 33, 0);
else
put_byte (place + 33, 1);
if (disk_empty(2))
put_byte (place + 34, 0);
else
put_byte (place + 34, 1);
if (disk_empty(3))
put_byte (place + 35, 0);
else
put_byte (place + 35, 1);
for (i = 0; i < 256; i++) {
put_byte ((place + 36 + i), currprefs.df[0][i]);
put_byte ((place + 36 + i + 256), currprefs.df[1][i]);
put_byte ((place + 36 + i + 512), currprefs.df[2][i]);
put_byte ((place + 36 + i + 768), currprefs.df[3][i]);
}
return 1;
}
static void ersatz_init (void)
{
int f;
uaecptr request;
uaecptr a;
already_failed = 0;
write_log ("initializing kickstart replacement\n");
if (disk_empty (0)) {
already_failed = 1;
notify_user (NUMSG_KICKREP);
uae_restart (-1, NULL);
return;
}
regs.s = 0;
/* Set some interrupt vectors */
for (a = 8; a < 0xC0; a += 4) {
put_long (a, 0xF8001A);
}
regs.isp = regs.msp = regs.usp = 0x800;
m68k_areg(®s, 7) = 0x80000;
regs.intmask = 0;
/* Build a dummy execbase */
put_long (4, m68k_areg(®s, 6) = 0x676);
put_byte (0x676 + 0x129, 0);
for (f = 1; f < 105; f++) {
put_word (0x676 - 6*f, 0x4EF9);
put_long (0x676 - 6*f + 2, 0xF8000C);
}
/* Some "supported" functions */
put_long (0x676 - 456 + 2, 0xF80014);
put_long (0x676 - 216 + 2, 0xF80020);
put_long (0x676 - 198 + 2, 0xF80026);
put_long (0x676 - 204 + 2, 0xF8002c);
put_long (0x676 - 210 + 2, 0xF8002a);
/* Build an IORequest */
request = 0x800;
put_word (request + 0x1C, 2);
put_long (request + 0x28, 0x4000);
put_long (request + 0x2C, 0);
put_long (request + 0x24, 0x200 * 4);
m68k_areg(®s, 1) = request;
ersatz_doio ();
/* kickstart disk loader */
if (get_long(0x4000) == 0x4b49434b) {
/* a kickstart disk was found in drive 0! */
write_log ("Loading Kickstart rom image from Kickstart disk\n");
/* print some notes... */
write_log ("NOTE: if UAE crashes set CPU to 68000 and/or chipmem size to 512KB!\n");
/* read rom image from kickstart disk */
put_word (request + 0x1C, 2);
put_long (request + 0x28, 0xF80000);
put_long (request + 0x2C, 0x200);
put_long (request + 0x24, 0x200 * 512);
m68k_areg(®s, 1) = request;
ersatz_doio ();
/* read rom image once again to mirror address space.
not elegant, but it works... */
put_word (request + 0x1C, 2);
put_long (request + 0x28, 0xFC0000);
put_long (request + 0x2C, 0x200);
put_long (request + 0x24, 0x200 * 512);
m68k_areg(®s, 1) = request;
ersatz_doio ();
disk_eject (0);
m68k_setpc (®s, 0xFC0002);
fill_prefetch_slow (®s);
uae_reset (0);
ersatzkickfile = 0;
return;
}
m68k_setpc (®s, 0x400C);
fill_prefetch_slow (®s);
/* Init the hardware */
put_long (0x3000, 0xFFFFFFFEul);
put_long (0xDFF080, 0x3000);
put_word (0xDFF088, 0);
put_word (0xDFF096, 0xE390);
put_word (0xDFF09A, 0xE02C);
put_word (0xDFF09E, 0x0000);
put_word (0xDFF092, 0x0038);
put_word (0xDFF094, 0x00D0);
put_word (0xDFF08E, 0x2C81);
put_word (0xDFF090, 0xF4C1);
put_word (0xDFF02A, 0x8000);
put_byte (0xBFD100, 0xF7);
put_byte (0xBFEE01, 0);
put_byte (0xBFEF01, 0x08);
put_byte (0xBFDE00, 0x04);
put_byte (0xBFDF00, 0x84);
put_byte (0xBFDD00, 0x9F);
put_byte (0xBFED01, 0x9F);
}
static void ersatz_init (void)
{
int f;
uaecptr request;
uaecptr a;
if (disk_empty (0)) {
write_log ("You need to have a diskfile in DF0 to use the Kickstart replacement!\n");
uae_quit ();
_68k_setpc (0xF80010);
return;
}
_68k_sreg = 0;
/* Set some interrupt vectors */
for (a = 8; a < 0xC0; a += 4) {
put_long (a, 0xF8001A);
}
_68k_ispreg = _68k_mspreg = _68k_uspreg = 0x800;
_68k_areg(7) = 0x80000;
#ifndef USE_FAME_CORE
_68k_intmask = 0;
#endif
/* Build a dummy execbase */
put_long (4, _68k_areg(6) = 0x676);
put_byte (0x676 + 0x129, 0);
for (f = 1; f < 105; f++) {
put_word (0x676 - 6*f, 0x4EF9);
put_long (0x676 - 6*f + 2, 0xF8000C);
}
/* Some "supported" functions */
put_long (0x676 - 456 + 2, 0xF80014);
put_long (0x676 - 216 + 2, 0xF80020);
put_long (0x676 - 198 + 2, 0xF80026);
put_long (0x676 - 204 + 2, 0xF8002c);
put_long (0x676 - 210 + 2, 0xF8002a);
/* Build an IORequest */
request = 0x800;
put_word (request + 0x1C, 2);
put_long (request + 0x28, 0x4000);
put_long (request + 0x2C, 0);
put_long (request + 0x24, 0x200 * 4);
_68k_areg(1) = request;
ersatz_doio ();
/* kickstart disk loader */
if (get_long(0x4000) == 0x4b49434b) {
/* a kickstart disk was found in drive 0! */
write_log ("Loading Kickstart rom image from Kickstart disk\n");
/* print some notes... */
write_log ("NOTE: if UAE crashes set CPU to 68000 and/or chipmem size to 512KB!\n");
/* read rom image from kickstart disk */
put_word (request + 0x1C, 2);
put_long (request + 0x28, 0xF80000);
put_long (request + 0x2C, 0x200);
put_long (request + 0x24, 0x200 * 512);
_68k_areg(1) = request;
ersatz_doio ();
/* read rom image once ajain to mirror address space.
not elegant, but it works... */
put_word (request + 0x1C, 2);
put_long (request + 0x28, 0xFC0000);
put_long (request + 0x2C, 0x200);
put_long (request + 0x24, 0x200 * 512);
_68k_areg(1) = request;
ersatz_doio ();
disk_eject (0);
_68k_setpc (0xFC0002);
fill_prefetch_0 ();
uae_reset ();
ersatzkickfile = 0;
return;
}
_68k_setpc (0x400C);
fill_prefetch_0 ();
/* Init the hardware */
put_long (0x3000, 0xFFFFFFFEul);
put_long (0xDFF080, 0x3000);
put_word (0xDFF088, 0);
put_word (0xDFF096, 0xE390);
put_word (0xDFF09A, 0xE02C);
put_word (0xDFF09E, 0x0000);
put_word (0xDFF092, 0x0038);
put_word (0xDFF094, 0x00D0);
put_word (0xDFF08E, 0x2C81);
put_word (0xDFF090, 0xF4C1);
put_word (0xDFF02A, 0x8000);
put_byte (0xBFD100, 0xF7);
put_byte (0xBFEE01, 0);
put_byte (0xBFEF01, 0x08);
put_byte (0xBFDE00, 0x04);
put_byte (0xBFDF00, 0x84);
put_byte (0xBFDD00, 0x9F);
put_byte (0xBFED01, 0x9F);
}
