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rugby: Partial code decryption (nw)

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This commit is contained in:
AJR 2018-03-30 07:42:27 -04:00
parent b45038f73a
commit 32d8ed91a4
1 changed files with 29 additions and 1 deletions
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30
src/mame/drivers/4roses.cpp
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@ -193,8 +193,11 @@ public:
: funworld_state(mconfig, type, tag) { }
DECLARE_DRIVER_INIT(4roses);
DECLARE_DRIVER_INIT(rugby);
void _4roses(machine_config &config);
void rugby(machine_config &config);
void _4roses_map(address_map &map);
void rugby_map(address_map &map);
};
@ -220,6 +223,18 @@ void _4roses_state::_4roses_map(address_map &map)
map(0x6000, 0xffff).rom().region("maincpu", 0x6000);
}
void _4roses_state::rugby_map(address_map &map)
{
map(0x0000, 0x07ff).ram(); // AM_SHARE("nvram")
map(0x0c00, 0x0c00).r("ay8910", FUNC(ay8910_device::data_r));
map(0x0c00, 0x0c01).w("ay8910", FUNC(ay8910_device::address_data_w));
map(0x0e00, 0x0e00).w("crtc", FUNC(mc6845_device::address_w));
map(0x0e01, 0x0e01).rw("crtc", FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w));
map(0x2000, 0x2fff).ram().w(this, FUNC(_4roses_state::funworld_videoram_w)).share("videoram");
map(0x3000, 0x3fff).ram().w(this, FUNC(_4roses_state::funworld_colorram_w)).share("colorram");
map(0x4000, 0xffff).rom().region("maincpu", 0x4000);
}
/*
Unknown R/W
-----------
@ -395,6 +410,12 @@ MACHINE_CONFIG_START(_4roses_state::_4roses)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 2.5)
MACHINE_CONFIG_END
MACHINE_CONFIG_START(_4roses_state::rugby)
_4roses(config);
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_PROGRAM_MAP(rugby_map)
MACHINE_CONFIG_END
/*************************
* Rom Load *
@ -472,6 +493,13 @@ DRIVER_INIT_MEMBER(_4roses_state,4roses)
rom[addr] = bitswap<8>(rom[addr] ^ 0xca, 6, 5, 4, 3, 2, 1, 0, 7);
}
DRIVER_INIT_MEMBER(_4roses_state,rugby)
{
uint8_t *rom = memregion("maincpu")->base();
for (offs_t addr = 0x8000; addr < 0x10000; addr++)
rom[addr] = bitswap<8>(rom[addr], 6, 7, 4, 5, 2, 3, 0, 1);
}
/*************************
* Game Drivers *
@ -480,4 +508,4 @@ DRIVER_INIT_MEMBER(_4roses_state,4roses)
/* YEAR NAME PARENT MACHINE INPUT STATE INIT ROT COMPANY FULLNAME FLAGS */
GAME( 1999, 4roses, 0, _4roses, 4roses, _4roses_state, 4roses, ROT0, "<unknown>", "Four Roses (encrypted, set 1)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_WRONG_COLORS | MACHINE_UNEMULATED_PROTECTION | MACHINE_NO_SOUND | MACHINE_NOT_WORKING )
GAME( 1999, 4rosesa, 4roses, _4roses, 4roses, _4roses_state, 4roses, ROT0, "<unknown>", "Four Roses (encrypted, set 2)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_WRONG_COLORS | MACHINE_UNEMULATED_PROTECTION | MACHINE_NO_SOUND | MACHINE_NOT_WORKING )
GAME( 1999, rugby, 0, _4roses, 4roses, _4roses_state, 4roses, ROT0, "C.M.C.", "Rugby? (four roses hardware)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_WRONG_COLORS | MACHINE_UNEMULATED_PROTECTION | MACHINE_NO_SOUND | MACHINE_NOT_WORKING )
GAME( 1999, rugby, 0, rugby, 4roses, _4roses_state, rugby, ROT0, "C.M.C.", "Rugby? (four roses hardware)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_WRONG_COLORS | MACHINE_UNEMULATED_PROTECTION | MACHINE_NO_SOUND | MACHINE_NOT_WORKING )