mirror of
https://github.com/holub/mame
synced 2025-10-06 17:08:28 +03:00
134 lines
4.2 KiB
C++
134 lines
4.2 KiB
C++
// license:BSD-3-Clause
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// copyright-holders:Robbbert
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/***************************************************************************
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Dual Systems 68000
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09/12/2009 Skeleton driver.
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****************************************************************************/
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#include "emu.h"
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#include "cpu/m68000/m68000.h"
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#include "cpu/i8085/i8085.h"
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//#include "bus/s100/s100.h"
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#include "machine/mc2661.h"
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#include "machine/terminal.h"
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class dual68_state : public driver_device
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{
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public:
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dual68_state(const machine_config &mconfig, device_type type, const char *tag)
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: driver_device(mconfig, type, tag)
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, m_maincpu(*this, "maincpu")
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, m_terminal(*this, "terminal")
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, m_p_ram(*this, "ram")
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{ }
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void dual68(machine_config &config);
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private:
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void kbd_put(u8 data);
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DECLARE_WRITE16_MEMBER(terminal_w);
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void dual68_mem(address_map &map);
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void sio4_io(address_map &map);
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void sio4_mem(address_map &map);
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virtual void machine_reset() override;
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required_device<cpu_device> m_maincpu;
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required_device<generic_terminal_device> m_terminal;
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required_shared_ptr<uint16_t> m_p_ram;
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//uint8_t m_term_data;
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};
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WRITE16_MEMBER( dual68_state::terminal_w )
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{
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m_terminal->write(space, 0, data >> 8);
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}
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void dual68_state::dual68_mem(address_map &map)
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{
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map.unmap_value_high();
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map(0x00000000, 0x0000ffff).ram().share("ram");
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map(0x00080000, 0x00081fff).rom().region("user1", 0);
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map(0x007f0000, 0x007f0001).w(FUNC(dual68_state::terminal_w));
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map(0x00800000, 0x00801fff).rom().region("user1", 0);
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}
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void dual68_state::sio4_mem(address_map &map)
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{
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map.unmap_value_high();
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map(0x0000, 0x07ff).rom();
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map(0x0800, 0xffff).ram();
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}
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void dual68_state::sio4_io(address_map &map)
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{
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map.unmap_value_high();
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map(0x20, 0x23).rw("usart1", FUNC(mc2661_device::read), FUNC(mc2661_device::write));
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map(0x28, 0x2b).rw("usart2", FUNC(mc2661_device::read), FUNC(mc2661_device::write));
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map(0x30, 0x33).rw("usart3", FUNC(mc2661_device::read), FUNC(mc2661_device::write));
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map(0x38, 0x3b).rw("usart4", FUNC(mc2661_device::read), FUNC(mc2661_device::write));
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}
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/* Input ports */
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static INPUT_PORTS_START( dual68 )
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INPUT_PORTS_END
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void dual68_state::machine_reset()
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{
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uint8_t* user1 = memregion("user1")->base();
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memcpy((uint8_t*)m_p_ram.target(),user1,0x2000);
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m_maincpu->reset();
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}
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void dual68_state::kbd_put(u8 data)
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{
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//m_term_data = data;
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}
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MACHINE_CONFIG_START(dual68_state::dual68)
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/* basic machine hardware */
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MCFG_DEVICE_ADD("maincpu", M68000, 16_MHz_XTAL / 2) // MC68000L8
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MCFG_DEVICE_PROGRAM_MAP(dual68_mem)
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MCFG_DEVICE_ADD("siocpu", I8085A, 9.8304_MHz_XTAL) // NEC D8085AC-2
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MCFG_DEVICE_PROGRAM_MAP(sio4_mem)
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MCFG_DEVICE_IO_MAP(sio4_io)
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/* video hardware */
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MCFG_DEVICE_ADD(m_terminal, GENERIC_TERMINAL, 0)
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MCFG_GENERIC_TERMINAL_KEYBOARD_CB(PUT(dual68_state, kbd_put))
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MCFG_DEVICE_ADD("usart1", MC2661, 9.8304_MHz_XTAL / 2) // SCN2661B
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MCFG_DEVICE_ADD("usart2", MC2661, 9.8304_MHz_XTAL / 2) // SCN2661B
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MCFG_DEVICE_ADD("usart3", MC2661, 9.8304_MHz_XTAL / 2) // SCN2661B
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MCFG_DEVICE_ADD("usart4", MC2661, 9.8304_MHz_XTAL / 2) // SCN2661B
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MACHINE_CONFIG_END
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/* ROM definition */
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ROM_START( dual68 )
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ROM_REGION( 0x2000, "user1", ROMREGION_ERASEFF )
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ROM_SYSTEM_BIOS( 0, "v1", "2 * 4KB" )
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ROMX_LOAD("dual_cpu68000_1.bin", 0x0001, 0x1000, CRC(d1785c08) SHA1(73c1f68875f1d8eb5e92f4347f509c61103da90f),ROM_SKIP(1) | ROM_BIOS(0))
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ROMX_LOAD("dual_cpu68000_2.bin", 0x0000, 0x1000, CRC(b9f1ba3c) SHA1(8fd02936ad06d5a22d435d96f06e2442fc7d00ec),ROM_SKIP(1) | ROM_BIOS(0))
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ROM_SYSTEM_BIOS( 1, "v2", "2 * 2KB" )
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ROMX_LOAD("dual.u2.bin", 0x0001, 0x0800, CRC(e9c44fcd) SHA1(d5cc609d6f5e6745d5f0af1aa6dc66012333ed60),ROM_SKIP(1) | ROM_BIOS(1))
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ROMX_LOAD("dual.u3.bin", 0x0000, 0x0800, CRC(827b049f) SHA1(8209f8ab3d1068e5bab51e7eb12be46d4ea28354),ROM_SKIP(1) | ROM_BIOS(1))
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ROM_REGION( 0x10000, "siocpu", ROMREGION_ERASEFF )
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ROM_LOAD("dual_sio4.bin", 0x0000, 0x0800, CRC(6b0a1965) SHA1(5d2dc6c6a315293ded4b9fc95c8ac1599bf31dd3))
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ROM_END
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/* Driver */
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// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
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COMP( 1981, dual68, 0, 0, dual68, dual68, dual68_state, empty_init, "Dual Systems Corporation", "Dual Systems 68000", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)
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