// license:BSD-3-Clause // copyright-holders:AJR /**************************************************************************** Skeleton driver for 80186-based VMEbus controller by Colex, Inc. ****************************************************************************/ #include "emu.h" #include "cpu/i86/i186.h" //#include "bus/vme/vme.h" #include "machine/74259.h" //#include "machine/m3000.h" #include "machine/z80scc.h" class clxvme186_state : public driver_device { public: clxvme186_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") { } void clxvme186(machine_config &config); protected: virtual void machine_start() override; private: void unknown_w(u16 data); u8 sasi_status_r(); void mem_map(address_map &map); void io_map(address_map &map); required_device m_maincpu; }; void clxvme186_state::machine_start() { } void clxvme186_state::unknown_w(u16 data) { } u8 clxvme186_state::sasi_status_r() { return 0; } void clxvme186_state::mem_map(address_map &map) { map(0x00000, 0x3ffff).ram(); // On-board RAM map(0x40000, 0xbffff).unmaprw(); // Off-board memory map(0xc0000, 0xc7fff).unmapr(); // Vector interrupt input map(0xc8000, 0xcffff).unmaprw(); // VMEbus short I/O map(0xf0000, 0xf7fff).mirror(0x8000).rom().region("eprom", 0); // On-board EPROM } void clxvme186_state::io_map(address_map &map) { map(0xe000, 0xe001).unmaprw(); // SASI data port (PCS0) map(0xe080, 0xe087).rw("scc", FUNC(scc8530_device::ab_dc_r), FUNC(scc8530_device::ab_dc_w)).umask16(0x00ff); // Serial I/O ports A & B (PCS1) //map(0xe100, 0xe100).rw("rtc", FUNC(m3000_device::read), FUNC(m3000_device::write)); // Real time clock (PCS2) map(0xe180, 0xe181).portr("TTL"); // TTL input port (PCS3) map(0xe180, 0xe181).w(FUNC(clxvme186_state::unknown_w)); map(0xe190, 0xe190).r(FUNC(clxvme186_state::sasi_status_r)); // SASI status port (PCS3) map(0xe190, 0xe19f).w("ctrllatch", FUNC(ls259_device::write_d0)).umask16(0x00ff); // Control ports (PCS3) map(0xe200, 0xe207).unmapw(); // Register files (PCS4) map(0xe280, 0xe281).unmapw(); // Printer data port (PCS5) } static INPUT_PORTS_START(clxvme186) PORT_START("TTL") PORT_BIT(0x0001, IP_ACTIVE_LOW, IPT_UNKNOWN) // P6 X data PORT_BIT(0x0002, IP_ACTIVE_LOW, IPT_UNKNOWN) // P6 Y data PORT_BIT(0x0004, IP_ACTIVE_LOW, IPT_UNKNOWN) // P6 M data PORT_BIT(0x0008, IP_ACTIVE_LOW, IPT_UNKNOWN) // P6 D data PORT_BIT(0x0010, IP_ACTIVE_LOW, IPT_UNKNOWN) // P6 G data PORT_BIT(0x0020, IP_ACTIVE_LOW, IPT_UNKNOWN) // Printer busy PORT_BIT(0x0040, IP_ACTIVE_LOW, IPT_UNKNOWN) // Printer paper empty PORT_BIT(0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN) // /SYSFAIL PORT_BIT(0x0100, IP_ACTIVE_LOW, IPT_UNKNOWN) // Real time clock busy PORT_BIT(0x0200, IP_ACTIVE_LOW, IPT_UNKNOWN) // Colex use only PORT_BIT(0x0400, IP_ACTIVE_LOW, IPT_UNKNOWN) // Colex use only PORT_BIT(0x0800, IP_ACTIVE_LOW, IPT_UNKNOWN) // /ACFAIL PORT_BIT(0x1000, IP_ACTIVE_LOW, IPT_UNKNOWN) // TTL input bit P2 pin 7c PORT_BIT(0xe000, IP_ACTIVE_LOW, IPT_UNUSED) INPUT_PORTS_END void clxvme186_state::clxvme186(machine_config &config) { I80186(config, m_maincpu, 16_MHz_XTAL); m_maincpu->set_addrmap(AS_PROGRAM, &clxvme186_state::mem_map); m_maincpu->set_addrmap(AS_IO, &clxvme186_state::io_map); SCC8530N(config, "scc", 3.6864_MHz_XTAL); //M3000(config, "rtc", 32.768_kHz_XTAL); LS259(config, "ctrllatch"); } ROM_START(clxvme186) ROM_REGION16_LE(0x8000, "eprom", 0) ROM_LOAD16_BYTE("clxu37.bin", 0x0000, 0x4000, CRC(9308130c) SHA1(a0230f8e9943a0c15cac365d4c58614e7befde59)) ROM_LOAD16_BYTE("clxu53.bin", 0x0001, 0x4000, CRC(66bf7cc5) SHA1(cfe8df9260b565840249256a30631a34e931c886)) ROM_IGNORE(0x4000) ROM_END COMP(1983, clxvme186, 0, 0, clxvme186, clxvme186, clxvme186_state, empty_init, "Colex", "Colex VME-80186", MACHINE_IS_SKELETON)