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// license:BSD-3-Clause
// copyright-holders:AJR
/***********************************************************************************************************************************
Skeleton driver for Decision Data IS-48x/LM-48xC IBM-compatible coax workstation displays.
***********************************************************************************************************************************/
#include "emu.h"
#include "cpu/i86/i186.h"
//#include "cpu/bcp/bcp.h"
//#include "machine/eeprompar.h"
//#include "video/mc6845.h"
//#include "screen.h"
class is48x_state : public driver_device
{
public:
is48x_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
{ }
void is482(machine_config &config);
private:
void mem_map(address_map &map);
void io_map(address_map &map);
required_device<cpu_device> m_maincpu;
};
void is48x_state::mem_map(address_map &map)
{
map(0x00000, 0x07fff).ram();
map(0x40000, 0x47fff).ram();
map(0x50000, 0x51fff).ram();
map(0x54000, 0x55fff).ram();
map(0x60022, 0x60022).nopr();
map(0x61ffa, 0x61ffa).nopr();
map(0x80000, 0xfffff).rom().region("program", 0);
}
void is48x_state::io_map(address_map &map)
{
map(0x8005, 0x8005).nopw();
//map(0x8080, 0x8080).w("crtc", FUNC(mc6845_device::address_w));
//map(0x8081, 0x8081).rw("crtc", FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w));
map(0x8101, 0x8101).nopr();
map(0x8180, 0x8180).ram();
}
static INPUT_PORTS_START(is482)
INPUT_PORTS_END
void is48x_state::is482(machine_config &config)
{
I80188(config, m_maincpu, 16_MHz_XTAL);
m_maincpu->set_addrmap(AS_PROGRAM, &is48x_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &is48x_state::io_map);
//DP8344(config, "bcp", 18.867_MHz_XTAL);
}
ROM_START(is482) // "IS-488-A" on case
ROM_REGION(0x80000, "program", 0)
ROM_LOAD("is-482_u67_s008533243.bin", 0x00000, 0x80000, CRC(1e23ac17) SHA1(aadc73bc0454c5b1c33d440dc511009dc6b7f9e0))
ROM_END
COMP(199?, is482, 0, 0, is482, is482, is48x_state, empty_init, "Decision Data", "IS-482 Workstation", MACHINE_IS_SKELETON)
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