DRIVER_INIT_MEMBER(pbaction_state,pbactio3)
{
int i;
UINT8 *rom = machine().root_device().memregion("maincpu")->base();
/* first of all, do a simple bitswap */
for (i = 0; i < 0xc000; i++)
{
rom[i] = BITSWAP8(rom[i], 7,6,5,4,1,2,3,0);
}
/* then do the standard Sega decryption */
pbaction_decode(machine(), "maincpu");
/* install a protection (?) workaround */
machine().device("maincpu")->memory().space(AS_PROGRAM).install_read_handler(0xc000, 0xc000, read8_delegate(FUNC(pbaction_state::pbactio3_prot_kludge_r),this) );
}
static DRIVER_INIT( pbactio3 )
{
int i;
UINT8 *rom = machine.region("maincpu")->base();
/* first of all, do a simple bitswap */
for (i = 0; i < 0xc000; i++)
{
rom[i] = BITSWAP8(rom[i], 7,6,5,4,1,2,3,0);
}
/* then do the standard Sega decryption */
pbaction_decode(machine, "maincpu");
/* install a protection (?) workaround */
machine.device("maincpu")->memory().space(AS_PROGRAM)->install_legacy_read_handler(0xc000, 0xc000, FUNC(pbactio3_prot_kludge_r) );
}
static DRIVER_INIT( pbactio3 )
{
int i;
UINT8 *rom = memory_region(REGION_CPU1);
/* first of all, do a simple bitswap */
for (i = 0;i < 0xc000;i++)
{
rom[i] = BITSWAP8(rom[i], 7,6,5,4,1,2,3,0);
}
/* then do the standard Sega decryption */
pbaction_decode();
/* install a protection (?) workaround */
memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0xc000, 0xc000, 0, 0, pbactio3_prot_kludge_r );
}
static DRIVER_INIT( pbactio3 )
{
int i;
UINT8 *rom = machine->region("maincpu")->base();
/* first of all, do a simple bitswap */
for (i = 0; i < 0xc000; i++)
{
rom[i] = BITSWAP8(rom[i], 7,6,5,4,1,2,3,0);
}
/* then do the standard Sega decryption */
pbaction_decode(machine, "maincpu");
/* install a protection (?) workaround */
memory_install_read8_handler(cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM), 0xc000, 0xc000, 0, 0, pbactio3_prot_kludge_r );
}
static DRIVER_INIT( pbactio4 )
{
/* this one only has the Sega decryption */
pbaction_decode(machine, "maincpu");
}
DRIVER_INIT_MEMBER(pbaction_state,pbactio4)
{
/* this one only has the Sega decryption */
pbaction_decode(machine(), "maincpu");
}