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astrof.cpp: dumped PROMs for asterion [Lorenzo Fongaro, Xadhoom, Paolo Bolognesi, Paolo Rinoldi]

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This commit is contained in:
Ivan Vangelista 2020-10-07 16:55:11 +02:00
parent 3ff42028e6
commit 43fe5ff51b
1 changed files with 22 additions and 5 deletions
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27
src/mame/drivers/astrof.cpp
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@ -1146,11 +1146,11 @@ ROM_START( asterion )
ROM_LOAD( "asterion eprom 3.bin", 0xf800, 0x0400, CRC(b206deda) SHA1(9ab52920c06ed6beb38bc7f97ffd00e8ad46c17d) )
ROM_LOAD( "asterion eprom 1.bin", 0xfc00, 0x0400, CRC(99008e90) SHA1(bfa1c3a66992f432fad37203f052f820b098e05f) )
ROM_REGION( 0x0100, "proms", 0 ) // not dumped yet, using the one from abattle for now
ROM_LOAD( "8f-clr.bin", 0x0000, 0x0100, BAD_DUMP CRC(3bf3ccb0) SHA1(d61d19d38045f42a9adecf295e479fee239bed48) )
ROM_REGION( 0x0100, "proms", 0 )
ROM_LOAD( "sn74s470.bin", 0x0000, 0x0100, CRC(3bf3ccb0) SHA1(d61d19d38045f42a9adecf295e479fee239bed48) )
ROM_REGION( 0x0100, "user1", 0 ) // not dumped yet, using the one from abattle for now, decryption is correct so this dump should too
ROM_LOAD( "2h-prot.bin", 0x0000, 0x0100, BAD_DUMP CRC(a6bdd18c) SHA1(438bfc543730afdb531204585f17a68ddc03ded0) )
ROM_REGION( 0x0200, "user1", 0 ) // data relevant for the decryption is the same as the one for abattle, but it's on a larger PROM
ROM_LOAD( "sn74s472.bin", 0x0000, 0x0200, CRC(d437a9d8) SHA1(32e3513ab2ce1cde5196d80c53f5aa98b339929f) )
ROM_END
@ -1416,6 +1416,23 @@ void astrof_state::init_acombat3()
}
void astrof_state::init_asterion()
{
// use the protection PROM to decrypt the ROMs
uint8_t *rom = memregion("maincpu")->base();
uint8_t *prom = memregion("user1")->base();
for (int i = 0xd000; i < 0x10000; i++)
{
rom[i] = prom[(rom[i] & 0x1f) + ((rom[i] & 0xe0) << 1)];
}
// set up protection handlers
m_maincpu->space(AS_PROGRAM).install_read_handler(0xa003, 0xa003, read8smo_delegate(*this, FUNC(astrof_state::shoot_r)));
m_maincpu->space(AS_PROGRAM).install_read_handler(0xa004, 0xa004, read8smo_delegate(*this, FUNC(astrof_state::abattle_coin_prot_r)));
}
/*************************************
*
* Game drivers
@ -1429,7 +1446,7 @@ GAME( 1979, astroff, astrof, astrof, astrof, astrof_state, empty_init,
GAME( 1979, abattle, astrof, abattle, abattle, astrof_state, init_abattle, ROT90, "bootleg? (Sidam)", "Astro Battle (set 1)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
GAME( 1979, abattle2, astrof, abattle, abattle, astrof_state, init_abattle, ROT90, "bootleg? (Sidam)", "Astro Battle (set 2)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
GAME( 1979, afire, astrof, abattle, abattle, astrof_state, init_afire, ROT90, "bootleg (Rene Pierre)", "Astro Fire", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
GAME( 1980, asterion, astrof, abattle, abattle, astrof_state, init_abattle, ROT90, "bootleg? (Olympia)", "Asterion", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
GAME( 1980, asterion, astrof, abattle, abattle, astrof_state, init_asterion, ROT90, "bootleg? (Olympia)", "Asterion", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
GAME( 1979, acombat, astrof, abattle, abattle, astrof_state, init_afire, ROT90, "bootleg", "Astro Combat (newer, CB)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
GAME( 1979, acombato, astrof, abattle, abattle, astrof_state, init_afire, ROT90, "bootleg", "Astro Combat (older, PZ)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )
GAME( 1979, acombat3, astrof, abattle, abattle, astrof_state, init_acombat3, ROT90, "bootleg (Proel)", "Astro Combat (unencrypted)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE )