static WRITE8_DEVICE_HANDLER( bagman_ls259_w )
{
bagman_state *state = device->machine().driver_data<bagman_state>();
address_space *space = device->machine().device("maincpu")->memory().space(AS_PROGRAM);
bagman_pal16r6_w(space, offset,data); /*this is just a simulation*/
if (state->m_ls259_buf[offset] != (data&1) )
{
state->m_ls259_buf[offset] = data&1;
switch (offset)
{
case 0:
case 1:
case 2:
tmsprom_bit_w(device, 0, 7 - ((state->m_ls259_buf[0]<<2) | (state->m_ls259_buf[1]<<1) | (state->m_ls259_buf[2]<<0)));
break;
case 3:
tmsprom_enable_w(device, state->m_ls259_buf[offset]);
break;
case 4:
tmsprom_rom_csq_w(device, 0, state->m_ls259_buf[offset]);
break;
case 5:
tmsprom_rom_csq_w(device, 1, state->m_ls259_buf[offset]);
break;
}
}
}
void bagman_machine_init(void)
{
bagman_pal16r6_w(0,1);
bagman_pal16r6_w(1,1);
bagman_pal16r6_w(2,1);
bagman_pal16r6_w(3,1);
bagman_pal16r6_w(4,1);
bagman_pal16r6_w(5,1);
bagman_pal16r6_w(6,1);
bagman_pal16r6_w(7,1);
update_pal();
}
static WRITE8_HANDLER( bagman_ls259_w )
{
bagman_pal16r6_w(offset,data); /*this is just a simulation*/
if (ls259_buf[offset] != (data&1) )
{
ls259_buf[offset] = data&1;
if (offset==3)
{
if (ls259_buf[3] == 0) /* 1->0 transition */
{
reset_talking();
}
else
{
start_talking(); /* 0->1 transition */
}
}
}
}
