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added MC-8123 key for Gigas. Of course the game still doesn't work because the program ROM is missing.

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This commit is contained in:
Nicola Salmoria 2009-05-09 13:12:36 +00:00
parent 49945ae809
commit 6dae83c584
2 changed files with 30 additions and 30 deletions
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29
src/mame/drivers/freekick.c
View File

@ -219,8 +219,7 @@ static ADDRESS_MAP_START( freekckb_map, ADDRESS_SPACE_PROGRAM, 8 )
ADDRESS_MAP_END ADDRESS_MAP_END
static ADDRESS_MAP_START( gigas_map, ADDRESS_SPACE_PROGRAM, 8 ) static ADDRESS_MAP_START( gigas_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x7fff) AM_ROM AM_RANGE(0x0000, 0xbfff) AM_ROM
AM_RANGE(0x8000, 0xbfff) AM_ROM
AM_RANGE(0xc000, 0xcfff) AM_RAM AM_RANGE(0xc000, 0xcfff) AM_RAM
AM_RANGE(0xd000, 0xd7ff) AM_RAM_WRITE(freek_videoram_w) AM_BASE(&freek_videoram) AM_RANGE(0xd000, 0xd7ff) AM_RAM_WRITE(freek_videoram_w) AM_BASE(&freek_videoram)
AM_RANGE(0xd800, 0xd8ff) AM_RAM AM_BASE(&spriteram) AM_SIZE(&spriteram_size) AM_RANGE(0xd800, 0xd8ff) AM_RAM AM_BASE(&spriteram) AM_SIZE(&spriteram_size)
@ -719,7 +718,7 @@ ROM_START( pbillrd )
ROM_LOAD( "82s129.3c", 0x0500, 0x0100, CRC(cc1657e5) SHA1(358f20dce376c2389009f9673ce38b297af863f6) ) ROM_LOAD( "82s129.3c", 0x0500, 0x0100, CRC(cc1657e5) SHA1(358f20dce376c2389009f9673ce38b297af863f6) )
ROM_END ROM_END
ROM_START( pbillrds ) /* Encrytped with a Sega MC-8123 (317-0030) CPU modual */ ROM_START( pbillrds ) /* Encrytped with a Sega MC-8123 (317-0030) CPU module */
ROM_REGION( 0x18000, "maincpu", 0 ) /* Z80 Code */ ROM_REGION( 0x18000, "maincpu", 0 ) /* Z80 Code */
ROM_LOAD( "10626.8n", 0x00000, 0x4000, CRC(51d725e6) SHA1(d7007c983530780e7fa3686cb7a6d7c382c802fa) ) /* encrypted */ ROM_LOAD( "10626.8n", 0x00000, 0x4000, CRC(51d725e6) SHA1(d7007c983530780e7fa3686cb7a6d7c382c802fa) ) /* encrypted */
ROM_LOAD( "10625.8r", 0x04000, 0x4000, CRC(8977c724) SHA1(f00835a04dc6fa7d8c1e382dace515f2aa7d6f44) ) /* encrypted */ ROM_LOAD( "10625.8r", 0x04000, 0x4000, CRC(8977c724) SHA1(f00835a04dc6fa7d8c1e382dace515f2aa7d6f44) ) /* encrypted */
@ -960,17 +959,16 @@ ROM_END
ROM_START( gigas ) /* From an actual Sega board 834-6167 with mc-8123: 317-5002 */ ROM_START( gigas ) /* From an actual Sega board 834-6167 with mc-8123: 317-5002 */
/* The MC-8123 is located on a small daughterboard which plugs into the z80 socket; /* The MC-8123 is located on a small daughterboard which plugs into the z80 socket;
* the daughterboard also has an input for the spinner control the game uses, * the daughterboard also has an input for the spinner control the game uses,
* Also note that roms 7 and 8 are encrypted, and the load order may be swapped or * It is also possible that the 7 and 8 labels were switched on the files submitted;
* otherwise wrong; It is also possible that the 7 and 8 labels were switched on * the load order as it is now is definitely correct, and opposite of the bootlegs.
* the files submitted. 7 is at location 8p, 8 at location 8n according to pcb pics. * 7 is at location 8p, 8 at location 8n according to pcb pics.
* An empty socket marked 27256 is at location 10n */ * An empty socket marked 27256 is at location 10n */
ROM_REGION( 2*0x10000, "maincpu", 0 ) ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "7.8p", 0x10000, 0x4000, CRC(43653909) SHA1(30f6666ba5c0f016299f462c4c07c81ee4832808) ) /* 27256 */ ROM_LOAD( "8.8n", 0x00000, 0x4000, NO_DUMP ) /* 27128, dumped as all 0x00s, bad eprom */
ROM_CONTINUE( 0x00000, 0x4000) ROM_LOAD( "7.8p", 0x04000, 0x8000, CRC(43653909) SHA1(30f6666ba5c0f016299f462c4c07c81ee4832808) ) /* 27256 */
ROM_LOAD( "8.8n", 0x04000, 0x4000, NO_DUMP CRC(ab54d286) SHA1(897256b6709e1a4da9daba92b6bde39ccfccd8c1) ) /* 27128, dumped as all 0x00s, bad eprom */
ROM_REGION( 0x2000, "user1", 0 ) /* MC8123 key */ ROM_REGION( 0x2000, "user1", 0 ) /* MC8123 key */
ROM_LOAD( "317-5002.key", 0x0000, 0x2000, NO_DUMP ) ROM_LOAD( "317-5002.key", 0x0000, 0x2000, CRC(86a7e5f6) SHA1(3ff3a17c02eb5610182b6febfada4e8eca0c5eea) )
ROM_REGION( 0xc000, "gfx1", ROMREGION_DISPOSE ) /* GFX */ ROM_REGION( 0xc000, "gfx1", ROMREGION_DISPOSE ) /* GFX */
ROM_LOAD( "4.3k", 0x00000, 0x04000, CRC(8ed78981) SHA1(1f2c0584fcc6d04b042638c7b9a7e21fc560ca3d) ) ROM_LOAD( "4.3k", 0x00000, 0x04000, CRC(8ed78981) SHA1(1f2c0584fcc6d04b042638c7b9a7e21fc560ca3d) )
@ -1071,7 +1069,7 @@ ROM_END
static DRIVER_INIT(gigasb) static DRIVER_INIT(gigasb)
{ {
const address_space *space = cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM); const address_space *space = cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM);
memory_set_decrypted_region(space, 0x0000, 0x7fff, memory_region(machine, "maincpu") + 0x10000); memory_set_decrypted_region(space, 0x0000, 0xbfff, memory_region(machine, "maincpu") + 0x10000);
} }
@ -1082,10 +1080,7 @@ static DRIVER_INIT( pbillrds )
static DRIVER_INIT( gigas ) static DRIVER_INIT( gigas )
{ {
/* uncomment this next line and remove the two lines below it once the key is dumped */ mc8123_decrypt_rom(machine, "maincpu", "user1", 0, 1);
//mc8123_decrypt_rom(machine, "maincpu", "user1", 1, 2);
const address_space *space = cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM);
memory_set_decrypted_region(space, 0x0000, 0x7fff, memory_region(machine, "maincpu") + 0x10000);
} }
@ -1097,7 +1092,7 @@ static DRIVER_INIT( gigas )
* *
*************************************/ *************************************/
/* YEAR NAME PARENT MACHINE INPUT INIT ROT COMPANY FULLNAME FLAGS */ /* YEAR NAME PARENT MACHINE INPUT INIT ROT COMPANY FULLNAME FLAGS */
GAME( 1986, gigas, 0, gigas, gigas, gigas, ROT270, "Sega", "Gigas", GAME_NOT_WORKING ) GAME( 1986, gigas, 0, gigas, gigas, gigas, ROT270, "Sega", "Gigas (MC-8123, 317-5002)", GAME_NOT_WORKING )
GAME( 1986, gigasb, gigas, gigas, gigas, gigasb, ROT270, "bootleg", "Gigas (bootleg)", GAME_NO_COCKTAIL ) GAME( 1986, gigasb, gigas, gigas, gigas, gigasb, ROT270, "bootleg", "Gigas (bootleg)", GAME_NO_COCKTAIL )
GAME( 1986, oigas, gigas , oigas, gigas, gigasb, ROT270, "bootleg", "Oigas (bootleg)", GAME_NO_COCKTAIL ) GAME( 1986, oigas, gigas , oigas, gigas, gigasb, ROT270, "bootleg", "Oigas (bootleg)", GAME_NO_COCKTAIL )
GAME( 1986, gigasm2b, 0, gigas, gigasm2, gigasb, ROT270, "bootleg", "Gigas Mark II (bootleg)", GAME_NO_COCKTAIL ) GAME( 1986, gigasm2b, 0, gigas, gigasm2, gigasb, ROT270, "bootleg", "Gigas Mark II (bootleg)", GAME_NO_COCKTAIL )

31
src/mame/machine/mc8123.c
View File

@ -65,6 +65,7 @@ CPU # Game Notes Seed Upper Limit
317-0057 Fantasy Zone 2 ADFACE 1800 317-0057 Fantasy Zone 2 ADFACE 1800
317-0064 Ufo Senshi Yohko Chan 880603 1C00 317-0064 Ufo Senshi Yohko Chan 880603 1C00
317-0066 Altered Beast (sound CPU) ED8600 1800 317-0066 Altered Beast (sound CPU) ED8600 1800
317-5002 Gigas 234567 1C00
317-5012 Ganbare Chinsan Ooshoubu NEC MC-8123A 804B54 1C00 317-5012 Ganbare Chinsan Ooshoubu NEC MC-8123A 804B54 1C00
317-5??? Ninja Kid II (sound CPU) 27998D 1800 317-5??? Ninja Kid II (sound CPU) 27998D 1800
@ -377,17 +378,16 @@ static UINT8 mc8123_decrypt(offs_t addr,UINT8 val,const UINT8 *key,int opcode)
void mc8123_decrypt_rom(running_machine *machine, const char *cpu, const char *keyrgn, int banknum, int numbanks) void mc8123_decrypt_rom(running_machine *machine, const char *cpu, const char *keyrgn, int banknum, int numbanks)
{ {
const address_space *space = cputag_get_address_space(machine, cpu, ADDRESS_SPACE_PROGRAM); const address_space *space = cputag_get_address_space(machine, cpu, ADDRESS_SPACE_PROGRAM);
UINT8 *decrypted1 = auto_alloc_array(machine, UINT8, numbanks == 1 ? 0xc000 : 0x8000); int fixed_length = numbanks == 1 ? 0xc000 : 0x8000;
UINT8 *decrypted2 = numbanks > 1 ? auto_alloc_array(machine, UINT8, 0x4000 * numbanks) : decrypted1 + 0x8000; UINT8 *decrypted1 = auto_alloc_array(machine, UINT8, fixed_length);
UINT8 *decrypted2 = numbanks > 1 ? auto_alloc_array(machine, UINT8, 0x4000 * numbanks) : 0;
UINT8 *rom = memory_region(machine, cpu); UINT8 *rom = memory_region(machine, cpu);
UINT8 *key = memory_region(machine, keyrgn); UINT8 *key = memory_region(machine, keyrgn);
int A, bank; int A, bank;
memory_set_decrypted_region(space, 0x0000, 0x7fff, decrypted1); memory_set_decrypted_region(space, 0x0000, fixed_length-1, decrypted1);
if (numbanks > 1)
memory_configure_bank_decrypted(machine, banknum, 0, numbanks, decrypted2, 0x4000);
for (A = 0x0000;A < 0x8000;A++) for (A = 0x0000;A < fixed_length;A++)
{ {
UINT8 src = rom[A]; UINT8 src = rom[A];
@ -398,17 +398,22 @@ void mc8123_decrypt_rom(running_machine *machine, const char *cpu, const char *k
rom[A] = mc8123_decrypt(A,src,key,0); rom[A] = mc8123_decrypt(A,src,key,0);
} }
for (bank = 0; bank < numbanks; ++bank) if (numbanks > 1)
{ {
for (A = 0x8000;A < 0xc000;A++) memory_configure_bank_decrypted(machine, banknum, 0, numbanks, decrypted2, 0x4000);
for (bank = 0; bank < numbanks; ++bank)
{ {
UINT8 src = rom[0x8000 + 0x4000*bank + A]; for (A = 0x8000;A < 0xc000;A++)
{
UINT8 src = rom[0x8000 + 0x4000*bank + A];
/* decode the opcodes */ /* decode the opcodes */
decrypted2[0x4000 * bank + (A-0x8000)] = mc8123_decrypt(A,src,key,1); decrypted2[0x4000 * bank + (A-0x8000)] = mc8123_decrypt(A,src,key,1);
/* decode the data */ /* decode the data */
rom[0x8000 + 0x4000*bank + A] = mc8123_decrypt(A,src,key,0); rom[0x8000 + 0x4000*bank + A] = mc8123_decrypt(A,src,key,0);
}
} }
} }
} }