summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/eacc.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/eacc.cpp')
-rw-r--r--src/mame/drivers/eacc.cpp290
1 files changed, 0 insertions, 290 deletions
diff --git a/src/mame/drivers/eacc.cpp b/src/mame/drivers/eacc.cpp
deleted file mode 100644
index 3a126dc3056..00000000000
--- a/src/mame/drivers/eacc.cpp
+++ /dev/null
@@ -1,290 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Robbbert
-/******************************************************************************
-*
-* EA Car Computer
-* by Robbbert, March 2011.
-*
-* Described in Electronics Australia magazine during 1982.
-* Construction and usage: http://messui.the-chronicles.org/comp/eacc.pdf
-*
-* The only RAM is the 128 bytes that comes inside the CPU.
-*
-* This computer is mounted in a car, and various sensors (fuel flow, etc)
-* are connected up. By pressing the appropriate buttons various statistics
-* may be obtained.
-*
-* Memory Map
-* 0000-007F internal ram
-* 4000-7FFF ROM
-* 8000-BFFF 6821
-* C000-FFFF ROM (mirror)
-*
-* The ROM was typed in twice from the dump in the magazine article, and the
-* results compared. Only one byte was different, so I can be confident that
-* it has been typed in properly.
-*
-* Setting up: You need to enter the number of expected pulses from the fuel
-* and distance sensors. Paste this: 5 6M123N 7M400N (start, set litres cal to
-* 123 pulses. set km cal to 400 pulses). Then paste this: 1950M0N 1845M0N (set
-* petrol tank capacity to 50 litres, set current amount of petrol to 45).
-* Now enter: 28M100N (the journey is 100km). Press 5 to start the journey.
-* All settings are saved in nvram.
-*
-* Stats you can see while travelling:
-* 0 - time elapsed
-* 08 - time remaining
-* 1 - fuel used
-* 18 - fuel left
-* 2 - km travelled
-* 28 - km remaining
-* 29 - km that could be travelled with the fuel you have left
-* 3 - speed now
-* 39 - average speed
-* 4 - fuel consumption now (litres per 100km)
-* 49 - fuel average consumption
-*
-******************************************************************************/
-
-/* Core includes */
-#include "emu.h"
-#include "cpu/m6800/m6800.h"
-#include "eacc.lh"
-#include "machine/6821pia.h"
-#include "machine/nvram.h"
-#include "machine/timer.h"
-
-
-class eacc_state : public driver_device
-{
-public:
- eacc_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_maincpu(*this, "maincpu")
- , m_pia(*this, "pia")
- , m_p_nvram(*this, "nvram")
- , m_digits(*this, "digit%u", 0U)
- { }
-
- void eacc(machine_config &config);
-
-private:
- DECLARE_READ_LINE_MEMBER( eacc_cb1_r );
- DECLARE_READ_LINE_MEMBER( eacc_distance_r );
- DECLARE_READ_LINE_MEMBER( eacc_fuel_sensor_r );
- DECLARE_READ8_MEMBER( eacc_keyboard_r );
- DECLARE_WRITE_LINE_MEMBER( eacc_cb2_w );
- DECLARE_WRITE8_MEMBER( eacc_digit_w );
- DECLARE_WRITE8_MEMBER( eacc_segment_w );
- TIMER_DEVICE_CALLBACK_MEMBER(eacc_cb1);
- TIMER_DEVICE_CALLBACK_MEMBER(eacc_nmi);
- void eacc_mem(address_map &map);
- uint8_t m_digit;
- bool m_cb1;
- bool m_cb2;
- bool m_nmi;
- virtual void machine_reset() override;
- virtual void machine_start() override { m_digits.resolve(); }
- required_device<m6802_cpu_device> m_maincpu;
- required_device<pia6821_device> m_pia;
- required_shared_ptr<uint8_t> m_p_nvram;
- output_finder<7> m_digits;
-};
-
-
-
-
-/******************************************************************************
- Address Maps
-******************************************************************************/
-
-void eacc_state::eacc_mem(address_map &map)
-{
- map.unmap_value_high();
- map.global_mask(0xc7ff); // A11,A12,A13 not connected
- map(0x0000, 0x001f).ram().share("nvram"); // inside cpu, battery-backed
- map(0x0020, 0x007f).ram(); // inside cpu
- map(0x4000, 0x47ff).rom().mirror(0x8000);
- map(0x8000, 0x8003).mirror(0x7fc).rw(m_pia, FUNC(pia6821_device::read), FUNC(pia6821_device::write));
-}
-
-
-/******************************************************************************
- Input Ports
-******************************************************************************/
-
-static INPUT_PORTS_START(eacc)
- PORT_START("X0")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("6 Litres Cal") PORT_CODE(KEYCODE_6_PAD) PORT_CHAR('6')
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR('M')
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("2 km") PORT_CODE(KEYCODE_2_PAD) PORT_CHAR('2')
- PORT_BIT( 0xf8, 0, IPT_UNUSED )
-
- PORT_START("X1")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("5 START") PORT_CODE(KEYCODE_5_PAD) PORT_CHAR('5')
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("END") PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR('N')
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("3 km/h") PORT_CODE(KEYCODE_3_PAD) PORT_CHAR('3')
- PORT_BIT( 0xf8, 0, IPT_UNUSED )
-
- PORT_START("X2")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("7 Km Cal") PORT_CODE(KEYCODE_7_PAD) PORT_CHAR('7')
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("0 hour.min") PORT_CODE(KEYCODE_0_PAD) PORT_CHAR('0')
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("4 l/100km") PORT_CODE(KEYCODE_4_PAD) PORT_CHAR('4')
- PORT_BIT( 0xf8, 0, IPT_UNUSED )
-
- PORT_START("X3")
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("8 REM") PORT_CODE(KEYCODE_8_PAD) PORT_CHAR('8')
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("1 litres") PORT_CODE(KEYCODE_1_PAD) PORT_CHAR('1')
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("9 AV") PORT_CODE(KEYCODE_9_PAD) PORT_CHAR('9')
- PORT_BIT( 0xf8, 0, IPT_UNUSED )
-INPUT_PORTS_END
-
-void eacc_state::machine_reset()
-{
- m_cb2 = 0;
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER(eacc_state::eacc_cb1)
-{
- m_cb1 ^= 1; // 15hz
- if (m_cb2)
- m_maincpu->set_input_line(M6802_IRQ_LINE, ASSERT_LINE);
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER(eacc_state::eacc_nmi)
-{
- if (m_cb2)
- {
- m_nmi = true;
- m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE);
- }
-}
-
-READ_LINE_MEMBER( eacc_state::eacc_cb1_r )
-{
- return (m_cb2) ? m_cb1 : 1;
-}
-
-READ_LINE_MEMBER( eacc_state::eacc_distance_r )
-{
- return machine().rand() & 1; // needs random pulses to simulate movement
-}
-
-READ_LINE_MEMBER( eacc_state::eacc_fuel_sensor_r )
-{
- return machine().rand() & 1; // needs random pulses to simulate fuel usage
-}
-
-WRITE_LINE_MEMBER( eacc_state::eacc_cb2_w )
-{
- m_cb2 = state;
-}
-
-READ8_MEMBER( eacc_state::eacc_keyboard_r )
-{
- uint8_t data = m_digit;
-
- if (BIT(m_digit, 3))
- data |= ioport("X0")->read();
- if (BIT(m_digit, 4))
- data |= ioport("X1")->read();
- if (BIT(m_digit, 5))
- data |= ioport("X2")->read();
- if (BIT(m_digit, 6))
- data |= ioport("X3")->read();
-
- return data;
-}
-
-WRITE8_MEMBER( eacc_state::eacc_segment_w )
-{
- //d7 segment dot
- //d6 segment c
- //d5 segment d
- //d4 segment e
- //d3 segment a
- //d2 segment b
- //d1 segment f
- //d0 segment g
-
- if (!m_nmi)
- {
- uint8_t i;
- if (BIT(m_digit, 7))
- {
- char lednum[6];
- data ^= 0xff;
-
- for (i = 0; i < 8; i++)
- {
- sprintf(lednum,"led%d",i);
- output().set_value(lednum, BIT(data, i));
- }
- }
- else
- {
- for (i = 3; i < 7; i++)
- if (BIT(m_digit, i))
- m_digits[i] = bitswap<8>(data, 7, 0, 1, 4, 5, 6, 2, 3);
- }
- }
-}
-
-WRITE8_MEMBER( eacc_state::eacc_digit_w )
-{
- if (m_nmi)
- {
- m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
- m_nmi = false;
- }
- m_digit = data & 0xf8;
-}
-
-
-/******************************************************************************
- Machine Drivers
-******************************************************************************/
-
-void eacc_state::eacc(machine_config &config)
-{
- /* basic machine hardware */
- M6802(config, m_maincpu, XTAL(3'579'545)); /* Divided by 4 inside the m6802*/
- m_maincpu->set_ram_enable(false); // FIXME: needs standby support
- m_maincpu->set_addrmap(AS_PROGRAM, &eacc_state::eacc_mem);
-
- config.set_default_layout(layout_eacc);
-
- PIA6821(config, m_pia, 0);
- m_pia->readpb_handler().set(FUNC(eacc_state::eacc_keyboard_r));
- m_pia->readca1_handler().set(FUNC(eacc_state::eacc_distance_r));
- m_pia->readcb1_handler().set(FUNC(eacc_state::eacc_cb1_r));
- m_pia->readca2_handler().set(FUNC(eacc_state::eacc_fuel_sensor_r));
- m_pia->writepa_handler().set(FUNC(eacc_state::eacc_segment_w));
- m_pia->writepb_handler().set(FUNC(eacc_state::eacc_digit_w));
- m_pia->cb2_handler().set(FUNC(eacc_state::eacc_cb2_w));
- m_pia->irqa_handler().set_inputline("maincpu", M6802_IRQ_LINE);
- m_pia->irqb_handler().set_inputline("maincpu", M6802_IRQ_LINE);
-
- NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
- TIMER(config, "eacc_nmi").configure_periodic(FUNC(eacc_state::eacc_nmi), attotime::from_hz(600));
- TIMER(config, "eacc_cb1").configure_periodic(FUNC(eacc_state::eacc_cb1), attotime::from_hz(30));
-}
-
-
-
-/******************************************************************************
- ROM Definitions
-******************************************************************************/
-
-ROM_START(eacc)
- ROM_REGION(0x10000, "maincpu", 0)
- ROM_LOAD("eacc.bin", 0x4000, 0x0800, CRC(287a63c0) SHA1(f61b397d33ea40e5742e34d5f5468572125e8b39) )
-ROM_END
-
-
-/******************************************************************************
- Drivers
-******************************************************************************/
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1982, eacc, 0, 0, eacc, eacc, eacc_state, empty_init, "Electronics Australia", "EA Car Computer", MACHINE_NO_SOUND_HW)