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Decrypt Omega program

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This commit is contained in:
Vas Crabb 2017-02-10 20:40:23 +11:00
parent 17a597434a
commit a7bd0f45df
2 changed files with 24 additions and 19 deletions
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12
src/mame/drivers/freekick.cpp
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@ -181,6 +181,7 @@ static ADDRESS_MAP_START( omega_map, AS_PROGRAM, 8, freekick_state )
AM_RANGE(0xd000, 0xd7ff) AM_RAM AM_SHARE("videoram") // from gigas, just to have a region
AM_RANGE(0xd800, 0xd8ff) AM_RAM AM_SHARE("spriteram") // from gigas, just to have a region
AM_RANGE(0xd900, 0xdfff) AM_RAM
AM_RANGE(0xe004, 0xe004) AM_WRITE(nmi_enable_w)
ADDRESS_MAP_END
static ADDRESS_MAP_START( pbillrd_map, AS_PROGRAM, 8, freekick_state )
@ -661,6 +662,7 @@ MACHINE_RESET_MEMBER(freekick_state,oigas)
static MACHINE_CONFIG_START( omega, freekick_state )
MCFG_CPU_ADD("maincpu", Z80, XTAL_18_432MHz/6) // unknown divisor
MCFG_CPU_PROGRAM_MAP(omega_map)
MCFG_CPU_DECRYPTED_OPCODES_MAP(decrypted_opcodes_map)
// video hardware
MCFG_GFXDECODE_ADD("gfxdecode", "palette", freekick)
@ -787,10 +789,13 @@ MACHINE_CONFIG_END
*************************************/
ROM_START( omega )
ROM_REGION(0xc000, "maincpu", 0) // encrypted?
ROM_REGION(0xc000, "maincpu", 0) // encrypted
ROM_LOAD("17.m10", 0x0000, 0x4000, CRC(c7de0993) SHA1(35ecd464935faba1dc7d0dbf48e1b17153626bfd)) // 27128
ROM_LOAD("8.n10", 0x4000, 0x8000, CRC(9bb61910) SHA1(f8a1210dbf93e901e246e6adf4cd905acc3ef376)) // 27256
ROM_REGION(0x2000, "user1", 0) // MC8123 key
ROM_LOAD("omega.key", 0x0000, 0x2000, CRC(0a63943f) SHA1(9e581ea0c5bf6c0ed5d402d3bab053766b8e44c2))
ROM_REGION(0xc000, "gfx1", 0)
ROM_LOAD("1.a10", 0x00000, 0x04000, CRC(e0aeada9) SHA1(ed00f6dca4f9701ff89390922d39341b179597c7)) // 27128
ROM_LOAD("2.c10", 0x04000, 0x04000, CRC(dbc0a47f) SHA1(b617c5a10c655e7befaeaecd9ce736e972285e6b)) // 27128
@ -1298,14 +1303,13 @@ DRIVER_INIT_MEMBER(freekick_state,gigas)
/*************************************
*
* Game driver(s)
*
*************************************/
/* YEAR NAME PARENT MACHINE INPUT INIT ROT COMPANY FULLNAME FLAGS */
GAME( 1986, omega, 0, omega, omega, driver_device, 0, ROT270, "Nihon System", "Omega", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
/* YEAR NAME PARENT MACHINE INPUT STATE INIT ROT COMPANY FULLNAME FLAGS */
GAME( 1986, omega, 0, omega, omega, freekick_state, gigas, ROT270, "Nihon System", "Omega", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
GAME( 1986, gigas, 0, gigas, gigas, freekick_state, gigas, ROT270, "Sega", "Gigas (MC-8123, 317-5002)", MACHINE_SUPPORTS_SAVE )
GAME( 1986, gigasb, gigas, gigas, gigas, freekick_state, gigasb, ROT270, "bootleg", "Gigas (bootleg)", MACHINE_SUPPORTS_SAVE )
GAME( 1986, oigas, gigas , oigas, gigas, freekick_state, gigasb, ROT270, "bootleg", "Oigas (bootleg)", MACHINE_SUPPORTS_SAVE )

1
src/mame/machine/mc8123.cpp
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@ -72,6 +72,7 @@ CPU # Game Notes Seed Upper Limit
317-5012 Ganbare Chinsan Ooshoubu NEC MC-8123A 804B54 1C00
317-5??? Ninja Kid II (sound CPU) NEC MC-8123A 646 27998D 1800
317-???? Center Court (sound CPU) NEC MC-8123B 703 640506 1800
312-???? Omega 861226 1C00?
***************************************************************************/