// license:BSD-3-Clause // copyright-holders:Robbbert /*************************************************************************** 2013-09-09 Skeleton of LFT computer system. A search on the net produces no finds. ****************************************************************************/ #include "emu.h" #include "cpu/i86/i186.h" #include "machine/terminal.h" class lft_state : public driver_device { public: lft_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_terminal(*this, "terminal") { } void kbd_put(u8 data); DECLARE_WRITE16_MEMBER(term_w); DECLARE_READ16_MEMBER(keyin_r); DECLARE_READ16_MEMBER(status_r); void lft(machine_config &config); void lft_io(address_map &map); void lft_mem(address_map &map); private: uint8_t m_term_data; virtual void machine_reset() override; required_device m_maincpu; required_device m_terminal; }; void lft_state::lft_mem(address_map &map) { map.unmap_value_high(); map(0x00000, 0x5ffff).ram(); map(0xfc000, 0xfffff).rom().region("roms", 0); } void lft_state::lft_io(address_map &map) { map.unmap_value_high(); map.global_mask(0xff); // screen 1 map(0x00, 0x01).nopr(); map(0x04, 0x05).rw(this, FUNC(lft_state::keyin_r), FUNC(lft_state::term_w)); // screen 2 map(0x02, 0x03).nopr(); map(0x06, 0x07).nopw(); } /* Input ports */ static INPUT_PORTS_START( lft ) INPUT_PORTS_END READ16_MEMBER( lft_state::keyin_r ) { uint16_t ret = m_term_data; m_term_data = 0; return ret; } READ16_MEMBER( lft_state::status_r ) { return (m_term_data) ? 5 : 4; } void lft_state::kbd_put(u8 data) { m_term_data = data; } WRITE16_MEMBER( lft_state::term_w ) { m_terminal->write(space, 0, data & 0x7f); // fix backspace } void lft_state::machine_reset() { m_term_data = 0; } MACHINE_CONFIG_START(lft_state::lft) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", I80186, 4000000) // no idea MCFG_CPU_PROGRAM_MAP(lft_mem) MCFG_CPU_IO_MAP(lft_io) /* video hardware */ MCFG_DEVICE_ADD("terminal", GENERIC_TERMINAL, 0) MCFG_GENERIC_TERMINAL_KEYBOARD_CB(PUT(lft_state, kbd_put)) MACHINE_CONFIG_END /* ROM definition */ ROM_START( lft1230 ) ROM_REGION(0x4000, "roms", 0) ROM_LOAD16_BYTE( "1230lf29", 0x0000, 0x2000, CRC(11c87367) SHA1(0879650aa98e19a4e6ca7b6ee7874f81c9c8ccfa) ) ROM_LOAD16_BYTE( "1230lf42", 0x0001, 0x2000, CRC(ab82b620) SHA1(8c7d93950703f348e5ce0f9e376d157dd6098c6a) ) ROM_END ROM_START( lft1510 ) ROM_REGION(0x4000, "roms", 0) ROM_LOAD16_BYTE( "1510lfev", 0x2000, 0x1000, CRC(47dbb290) SHA1(b557e9a54a30d9a16edfdef4a6b12a5393d30bf3) ) ROM_IGNORE(0x1000) ROM_LOAD16_BYTE( "1510lfod", 0x2001, 0x1000, CRC(ba8c23fc) SHA1(d4b82f69fccd653b31e7bd05ee884b323ff0007b) ) ROM_IGNORE(0x1000) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( ????, lft1510, 0, 0, lft, lft, lft_state, 0, "LFT", "LFT 1510", MACHINE_IS_SKELETON) COMP( ????, lft1230, lft1510, 0, lft, lft, lft_state, 0, "LFT", "LFT 1230", MACHINE_IS_SKELETON)