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Fixed banking in daytona2 by adding a second aperture to CROM

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at 0xc3000000. A couple of CROMs checksum as bad, but most come
out good.
This commit is contained in:
Aaron Giles 2011-01-25 06:31:54 +00:00
parent b5507571e3
commit 9cb3b37875
1 changed files with 3 additions and 0 deletions
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3
src/mame/drivers/model3.c
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@ -1766,6 +1766,7 @@ static WRITE64_HANDLER(daytona2_rombank_w)
data >>= 56;
data = (~data) & 0xf;
memory_set_bankptr(space->machine, "bank1", space->machine->region( "user1" )->base() + 0x800000 + (data * 0x800000)); /* banked CROM */
memory_set_bankptr(space->machine, "bank2", space->machine->region( "user1" )->base() + 0x800000 + (data * 0x800000)); /* banked CROM */
}
}
@ -5468,6 +5469,7 @@ static DRIVER_INIT( daytona2 )
DRIVER_INIT_CALL(model3_20);
memory_install_write64_handler(cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM), 0xc3800000, 0xc3800007, 0, 0, daytona2_rombank_w );
memory_install_read_bank(cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM), 0xc3000000, 0xc37fffff, 0, 0, "bank2" );
//rom[(0x68468c^4)/4] = 0x60000000;
rom[(0x6063c4^4)/4] = 0x60000000;
@ -5481,6 +5483,7 @@ static DRIVER_INIT( dayto2pe )
DRIVER_INIT_CALL(model3_20);
memory_install_write64_handler(cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM), 0xc3800000, 0xc3800007, 0, 0, daytona2_rombank_w );
memory_install_read_bank(cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM), 0xc3000000, 0xc37fffff, 0, 0, "bank2" );
rom[(0x606784^4)/4] = 0x60000000;
rom[(0x69a3fc^4)/4] = 0x60000000; // jump to encrypted code