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// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic
/***************************************************************************
DEC DCT11-EM
03/12/2010 Skeleton driver.
****************************************************************************/
#include "emu.h"
#include "cpu/t11/t11.h"
#include "emupal.h"
#include "screen.h"
class dct11em_state : public driver_device
{
public:
dct11em_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
{ }
void dct11em(machine_config &config);
private:
virtual void machine_reset() override;
virtual void video_start() override;
void dct11em_mem(address_map &map);
uint32_t screen_update_dct11em(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
required_device<t11_device> m_maincpu;
};
void dct11em_state::dct11em_mem(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0x0fff).ram(); // RAM
map(0x2000, 0x2fff).ram(); // Optional RAM
map(0xa000, 0xdfff).rom(); // RAM
}
/* Input ports */
static INPUT_PORTS_START( dct11em )
INPUT_PORTS_END
void dct11em_state::machine_reset()
{
}
void dct11em_state::video_start()
{
}
uint32_t dct11em_state::screen_update_dct11em(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
return 0;
}
void dct11em_state::dct11em(machine_config &config)
{
/* basic machine hardware */
T11(config, m_maincpu, 7500000); // 7.5MHz XTAL
m_maincpu->set_initial_mode(0x1403); /* according to specs */
m_maincpu->set_addrmap(AS_PROGRAM, &dct11em_state::dct11em_mem);
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_refresh_hz(50);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
screen.set_size(640, 480);
screen.set_visarea(0, 640-1, 0, 480-1);
screen.set_screen_update(FUNC(dct11em_state::screen_update_dct11em));
screen.set_palette("palette");
PALETTE(config, "palette", palette_device::MONOCHROME);
}
/* ROM definition */
ROM_START( dct11em )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
// Highest address line inverted
ROM_LOAD16_BYTE( "23-213e4.bin", 0x8000, 0x2000, CRC(bdd82f39) SHA1(347deeff77596b67eee27a39a9c40075fcf5c10d))
ROM_LOAD16_BYTE( "23-214e4.bin", 0x8001, 0x2000, CRC(b523dae8) SHA1(cd1a64a2bce9730f7a9177d391663919c7f56073))
ROM_COPY("maincpu", 0x8000, 0xc000, 0x2000)
ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 1983, dct11em, 0, 0, dct11em, dct11em, dct11em_state, empty_init, "Digital Equipment Corporation", "DCT11-EM", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)
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