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bus/rs232: Added the Micro-Robotics Scorpion Intelligent Controller device.
This commit is contained in:
Nigel Barnes
parent
a355ac845a
commit
7099a5c22c
@ -3214,6 +3214,8 @@ if (BUSES["RS232"]~=null) then
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MAME_DIR .. "src/devices/bus/rs232/rs232.h",
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MAME_DIR .. "src/devices/bus/rs232/rs232_sync_io.cpp",
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MAME_DIR .. "src/devices/bus/rs232/rs232_sync_io.h",
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MAME_DIR .. "src/devices/bus/rs232/scorpion.cpp",
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MAME_DIR .. "src/devices/bus/rs232/scorpion.h",
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MAME_DIR .. "src/devices/bus/rs232/sun_kbd.cpp",
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MAME_DIR .. "src/devices/bus/rs232/sun_kbd.h",
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MAME_DIR .. "src/devices/bus/rs232/swtpc8212.cpp",
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@ -163,6 +163,7 @@ device_rs232_port_interface::~device_rs232_port_interface()
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#include "printer.h"
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#include "pty.h"
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#include "rs232_sync_io.h"
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#include "scorpion.h"
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#include "sun_kbd.h"
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#include "swtpc8212.h"
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#include "terminal.h"
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@ -183,6 +184,7 @@ void default_rs232_devices(device_slot_interface &device)
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device.option_add("pty", PSEUDO_TERMINAL);
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device.option_add("rs232_sync_io", RS232_SYNC_IO);
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device.option_add("rs_printer", RADIO_SHACK_SERIAL_PRINTER);
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device.option_add("scorpion", SCORPION_IC);
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device.option_add("sunkbd", SUN_KBD_ADAPTOR);
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device.option_add("swtpc8212", SERIAL_TERMINAL_SWTPC8212);
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device.option_add("terminal", SERIAL_TERMINAL);
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199
src/devices/bus/rs232/scorpion.cpp
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199
src/devices/bus/rs232/scorpion.cpp
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@ -0,0 +1,199 @@
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// license:BSD-3-Clause
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// copyright-holders:Nigel Barnes
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/******************************************************************************
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Micro-Robotics Scorpion Intelligent Controller
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Specification:
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- 6303 CMOS micro-processor, 1.23 MHz operation
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- 24K RAM with battery backup
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- 32K system ROM
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- clock calendar
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Programming requirements:
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A computer with a serial port capable of running at 9600 baud, supporting a
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terminal emulator preferably conforming to VT52 or VT100 standards.
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Note: Use with BBC Micro with Scorpion Terminal Emulator ROM.
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TODO:
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- verify serial handshaking
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- LCD display
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- 20 key keypad
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******************************************************************************/
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#include "emu.h"
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#include "scorpion.h"
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#include "cpu/m6800/m6801.h"
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#include "machine/nvram.h"
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#include "machine/pcf8573.h"
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#define LOG_PORT2 (1U << 1)
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#define LOG_PORT5 (1U << 2)
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#define LOG_PORT6 (1U << 3)
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#define LOG_PORT7 (1U << 4)
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#define VERBOSE (0)
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#include "logmacro.h"
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namespace {
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class scorpion_ic_device : public device_t, public device_rs232_port_interface
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{
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public:
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scorpion_ic_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: device_t(mconfig, SCORPION_IC, tag, owner, clock)
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, device_rs232_port_interface(mconfig, *this)
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, m_maincpu(*this, "maincpu")
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, m_rombank(*this, "rombank")
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, m_rtc(*this, "rtc")
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, m_txd(0)
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, m_rts(0)
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{
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}
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virtual void input_txd(int state) override { m_txd = state; }
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virtual void input_rts(int state) override { m_rts = state; }
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protected:
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virtual void device_add_mconfig(machine_config &config) override;
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virtual const tiny_rom_entry *device_rom_region() const override;
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virtual void device_start() override;
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virtual void device_reset() override;
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private:
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required_device<hd6301x_cpu_device> m_maincpu;
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required_memory_bank m_rombank;
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required_device<pcf8573_device> m_rtc;
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void scorpion_map(address_map &map);
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uint8_t port2_r();
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uint8_t port5_r();
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uint8_t port6_r();
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void port6_w(uint8_t data);
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void port7_w(uint8_t data);
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int m_txd;
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int m_rts;
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};
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void scorpion_ic_device::device_start()
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{
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m_rombank->configure_entries(0, 2, memregion("sys_rom")->base(), 0x4000);
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}
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void scorpion_ic_device::device_reset()
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{
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m_rombank->set_entry(0);
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output_cts(0);
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}
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ROM_START( scorpion )
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ROM_REGION(0x8000, "sys_rom", 0)
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ROM_SYSTEM_BIOS(0, "61203", "Version 61203 (3rd Dec 1986)")
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ROMX_LOAD("scorpion_61203.bin", 0x0000, 0x8000, CRC(4ff495d1) SHA1(91c273c94cd0dbca655e192dd01ac6dc3a4f60a8), ROM_BIOS(0))
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ROM_REGION(0x4000, "exp_rom", ROMREGION_ERASE00)
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ROM_END
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const tiny_rom_entry *scorpion_ic_device::device_rom_region() const
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{
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return ROM_NAME( scorpion );
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}
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void scorpion_ic_device::scorpion_map(address_map &map)
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{
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map(0x07f0, 0x07f0).nopr(); // ??
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map(0x0bf0, 0x0bf0).nopr(); // ??
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map(0x0ef0, 0x0ef0).nopr(); // ??
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map(0x0fb0, 0x0fb0).nopr(); // ??
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map(0x0fe0, 0x0fe0).nopr(); // ??
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map(0x2000, 0x7fff).ram().share("nvram");
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map(0x8000, 0xbfff).rom().region("exp_rom", 0);
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map(0xc000, 0xffff).bankr("rombank").nopw();
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}
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void scorpion_ic_device::device_add_mconfig(machine_config &config)
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{
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HD6303X(config, m_maincpu, 4.9152_MHz_XTAL); // TODO: verify clock
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m_maincpu->set_addrmap(AS_PROGRAM, &scorpion_ic_device::scorpion_map);
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m_maincpu->in_p2_cb().set(FUNC(scorpion_ic_device::port2_r));
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//m_maincpu->out_p2_cb().set([this](uint8_t data) { logerror("%s port2_w: %02x\n", machine().describe_context(), data); } );
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m_maincpu->in_p5_cb().set(FUNC(scorpion_ic_device::port5_r));
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m_maincpu->in_p6_cb().set(FUNC(scorpion_ic_device::port6_r));
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m_maincpu->out_p6_cb().set(FUNC(scorpion_ic_device::port6_w));
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m_maincpu->out_p7_cb().set(FUNC(scorpion_ic_device::port7_w));
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m_maincpu->out_ser_tx_cb().set(FUNC(scorpion_ic_device::output_rxd));
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NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
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PCF8573(config, m_rtc, 32.768_kHz_XTAL);
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}
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uint8_t scorpion_ic_device::port2_r()
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{
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uint8_t data = 0xf7;
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data |= m_txd << 3;
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if (!machine().side_effects_disabled())
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LOGMASKED(LOG_PORT2, "%s port2_r: %02x\n", machine().describe_context(), data);
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return data;
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}
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uint8_t scorpion_ic_device::port5_r()
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{
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uint8_t data = 0xef;
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data |= m_rts << 4;
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if (!machine().side_effects_disabled())
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LOGMASKED(LOG_PORT5, "%s port5_r: %02x\n", machine().describe_context(), data);
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return data;
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}
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uint8_t scorpion_ic_device::port6_r()
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{
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uint8_t data = 0x00;
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data |= m_rtc->sda_r() << 3;
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if (!machine().side_effects_disabled())
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LOGMASKED(LOG_PORT6, "%s port6_r: %02x\n", machine().describe_context(), data);
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return data;
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}
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void scorpion_ic_device::port6_w(uint8_t data)
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{
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LOGMASKED(LOG_PORT6, "%s port6_w: %02x\n", machine().describe_context(), data);
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m_rtc->sda_w(BIT(data, 3));
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m_rtc->scl_w(BIT(data, 4));
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m_rombank->set_entry(BIT(data, 6));
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}
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void scorpion_ic_device::port7_w(uint8_t data)
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{
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LOGMASKED(LOG_PORT7, "%s port7_w: %02x\n", machine().describe_context(), data);
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}
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} // anonymous namespace
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DEFINE_DEVICE_TYPE_PRIVATE(SCORPION_IC, device_rs232_port_interface, scorpion_ic_device, "scorpion_ic", "Micro-Robotics Scorpion Intelligent Controller")
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13
src/devices/bus/rs232/scorpion.h
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13
src/devices/bus/rs232/scorpion.h
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@ -0,0 +1,13 @@
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// license:BSD-3-Clause
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// copyright-holders:Nigel Barnes
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#ifndef MAME_BUS_RS232_SCORPION_H
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#define MAME_BUS_RS232_SCORPION_H
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#pragma once
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#include "rs232.h"
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DECLARE_DEVICE_TYPE(SCORPION_IC, device_rs232_port_interface)
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#endif // MAME_BUS_RS232_SCORPION_H
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