// license:BSD-3-Clause // copyright-holders:Robbbert /*************************************************************************** Powertran Cortex 2012-04-20 Skeleton driver. ftp://ftp.whtech.com/Powertran Cortex/ http://www.powertrancortex.com/index.html Uses Texas Instruments parts and similar to other TI computers. It was designed by TI engineers, so it may perhaps be a clone of another TI or the Geneve. Chips: TMS9995 - CPU TMS9929 - Video TMS9911 - DMA to floppy TMS9909 - Floppy Disk Controller AY-5-2376 - Keyboard controller ****************************************************************************/ #include "emu.h" #include "cpu/tms9900/tms9995.h" #include "machine/74259.h" #include "video/tms9928a.h" class cortex_state : public driver_device { public: cortex_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_p_ram(*this, "ram") { } private: virtual void machine_reset() override; required_device m_maincpu; required_shared_ptr m_p_ram; }; static ADDRESS_MAP_START( mem_map, AS_PROGRAM, 8, cortex_state ) AM_RANGE(0x0000, 0xefff) AM_RAM AM_SHARE("ram") AM_RANGE(0xf100, 0xf11f) AM_RAM // memory mapping unit AM_RANGE(0xf120, 0xf120) AM_DEVREADWRITE("tms9928a", tms9928a_device, vram_read, vram_write) AM_RANGE(0xf121, 0xf121) AM_DEVREADWRITE("tms9928a", tms9928a_device, register_read, register_write) //AM_RANGE(0xf140, 0xf147) // fdc tms9909 ADDRESS_MAP_END static ADDRESS_MAP_START( io_map, AS_IO, 8, cortex_state ) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0x000f) AM_MIRROR(0x0030) AM_DEVWRITE("control", ls259_device, write_a0) //AM_RANGE(0x0000, 0x000f) AM_MIRROR(0x0020) AM_READ(pio_r) //AM_RANGE(0x0010, 0x001f) AM_MIRROR(0x0020) AM_READ(keyboard_r) //AM_RANGE(0x0080, 0x00bf) AM_READWRITE(rs232_r,rs232_w) //AM_RANGE(0x0180, 0x01bf) AM_READWRITE(cass_r,cass_w) //AM_RANGE(0x0800, 0x080f) AM_WRITE(cent_data_w) //AM_RANGE(0x0810, 0x0811) AM_WRITE(cent_strobe_w) //AM_RANGE(0x0812, 0x0813) AM_READ(cent_stat_r) //AM_RANGE(0x1ee0, 0x1eef) AM_READWRITE(cpu_int_r,cpu_int_w) //AM_RANGE(0x1fda, 0x1fdb) AM_READWRITE(cpu_int1_r,cpu_int1_w) ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( cortex ) INPUT_PORTS_END void cortex_state::machine_reset() { uint8_t* ROM = memregion("maincpu")->base(); memcpy(m_p_ram, ROM, 0x6000); m_maincpu->ready_line(ASSERT_LINE); } static MACHINE_CONFIG_START( cortex ) /* basic machine hardware */ /* TMS9995 CPU @ 12.0 MHz */ // Standard variant, no overflow int // No lines connected yet MCFG_TMS99xx_ADD("maincpu", TMS9995, 12000000, mem_map, io_map) MCFG_DEVICE_ADD("control", LS259, 0) // IC64 //MCFG_ADDRESSABLE_LATCH_Q0_OUT_CB(WRITELINE(cortex_state, basic_led_w)) //MCFG_ADDRESSABLE_LATCH_Q1_OUT_CB(WRITELINE(cortex_state, keyboard_ack_w)) //MCFG_ADDRESSABLE_LATCH_Q2_OUT_CB(WRITELINE(cortex_state, ebus_int_ack_w)) //MCFG_ADDRESSABLE_LATCH_Q3_OUT_CB(WRITELINE(cortex_state, ebus_to_en_w)) //MCFG_ADDRESSABLE_LATCH_Q4_OUT_CB(WRITELINE(cortex_state, disk_size_w)) //MCFG_ADDRESSABLE_LATCH_Q5_OUT_CB(WRITELINE(cortex_state, eprom_on_off_w)) //MCFG_ADDRESSABLE_LATCH_Q6_OUT_CB(WRITELINE(cortex_state, bell_en_w)) /* video hardware */ MCFG_DEVICE_ADD( "tms9928a", TMS9929A, XTAL_10_738635MHz / 2 ) MCFG_TMS9928A_VRAM_SIZE(0x4000) MCFG_TMS9928A_SCREEN_ADD_PAL( "screen" ) MCFG_SCREEN_UPDATE_DEVICE( "tms9928a", tms9928a_device, screen_update ) MACHINE_CONFIG_END /* ROM definition */ ROM_START( cortex ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_SYSTEM_BIOS(0, "basic", "Cortex Bios") ROMX_LOAD( "cortex.ic47", 0x0000, 0x2000, CRC(bdb8c7bd) SHA1(340829dcb7a65f2e830fd5aff82a312e3ed7918f), ROM_BIOS(1)) ROMX_LOAD( "cortex.ic46", 0x2000, 0x2000, CRC(4de459ea) SHA1(00a42fe556d4ffe1f85b2ce369f544b07fbd06d9), ROM_BIOS(1)) ROMX_LOAD( "cortex.ic45", 0x4000, 0x2000, CRC(b0c9b6e8) SHA1(4e20c3f0b7546b803da4805cd3b8616f96c3d923), ROM_BIOS(1)) ROM_SYSTEM_BIOS(1, "forth", "FIG-Forth") ROMX_LOAD( "forth.ic47", 0x0000, 0x2000, CRC(999034be) SHA1(0dcc7404c38aa0ae913101eb0aa98da82104b5d4), ROM_BIOS(2)) ROMX_LOAD( "forth.ic46", 0x2000, 0x2000, CRC(8eca54cc) SHA1(0f1680e941ef60bb9bde9a4b843b78f30dff3202), ROM_BIOS(2)) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT STATE INIT COMPANY FULLNAME FLAGS COMP( 1982, cortex, 0, 0, cortex, cortex, cortex_state, 0, "Powertran Cybernetics", "Cortex", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)