// license:MAME // copyright-holders:Robbbert /*************************************************************************** Stuart's Breadboard Project. TMS9995 evaluation kit TMAM6095. 2013-06-02 Skeleton driver. http://www.avjd51.dsl.pipex.com/tms9995_eval_module/tms9995_eval_module.htm ****************************************************************************/ #include "emu.h" #include "cpu/tms9900/tms9995.h" #include "machine/terminal.h" #define TERMINAL_TAG "terminal" class evmbug_state : public driver_device { public: evmbug_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_terminal(*this, TERMINAL_TAG) { } DECLARE_READ8_MEMBER(rs232_r); DECLARE_WRITE8_MEMBER(rs232_w); DECLARE_WRITE8_MEMBER(kbd_put); virtual void machine_reset(); UINT8 m_term_data; UINT8 m_term_out; required_device m_maincpu; required_device m_terminal; }; static ADDRESS_MAP_START( evmbug_mem, AS_PROGRAM, 8, evmbug_state ) AM_RANGE(0x0000, 0x17ff) AM_ROM AM_RANGE(0xec00, 0xefff) AM_RAM ADDRESS_MAP_END static ADDRESS_MAP_START( evmbug_io, AS_IO, 8, evmbug_state ) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0x0007) AM_WRITE(rs232_w) AM_RANGE(0x0000, 0x0002) AM_READ(rs232_r) ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( evmbug ) INPUT_PORTS_END READ8_MEMBER( evmbug_state::rs232_r ) { static UINT8 temp = 0; temp^=0xff; if (offset == 1) return temp; if (offset == 2) { return 0xff;//(m_term_data) ? 0 : 0xff; } UINT8 ret = m_term_data; m_term_data = 0; return ret; } WRITE8_MEMBER( evmbug_state::rs232_w ) { if (offset == 0) m_term_out = 0; m_term_out |= (data << offset); if (offset == 7) m_terminal->write(space, 0, m_term_out & 0x7f); } WRITE8_MEMBER( evmbug_state::kbd_put ) { m_term_data = data; } void evmbug_state::machine_reset() { m_term_data = 0; // Disable auto wait state generation by raising the READY line on reset static_cast(machine().device("maincpu"))->set_ready(ASSERT_LINE); } static MACHINE_CONFIG_START( evmbug, evmbug_state ) // basic machine hardware // TMS9995 CPU @ 12.0 MHz // We have no lines connected yet MCFG_TMS99xx_ADD("maincpu", TMS9995, 12000000, evmbug_mem, evmbug_io ) /* video hardware */ MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0) MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(evmbug_state, kbd_put)) MACHINE_CONFIG_END /* ROM definition */ ROM_START( evmbug ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) // ROM_LOAD( "u8.bin", 0x0000, 0x1000, CRC(bdb8c7bd) SHA1(340829dcb7a65f2e830fd5aff82a312e3ed7918f) ) // ROM_LOAD( "u9.bin", 0x1000, 0x0800, CRC(4de459ea) SHA1(00a42fe556d4ffe1f85b2ce369f544b07fbd06d9) ) ROM_LOAD( "evmbug.bin", 0x0000, 0x8000, CRC(a239ec56) SHA1(65b500d7d0f897ce0c320cf3ec32ff4042774599) ) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ COMP( 19??, evmbug, 0, 0, evmbug, evmbug, driver_device, 0, "Texas Instruments", "TMAM6095", GAME_NOT_WORKING | GAME_NO_SOUND)