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-rw-r--r--src/mame/drivers/pro80.cpp207
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diff --git a/src/mame/drivers/pro80.cpp b/src/mame/drivers/pro80.cpp
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--- a/src/mame/drivers/pro80.cpp
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-// license:BSD-3-Clause
-// copyright-holders:Sandro Ronco, Robbbert
-/******************************************************************************************************
-
-Protec Pro-80
-
-2009-12-09 Skeleton driver.
-
-TODO:
-- Cassette load (last byte is bad)
-- Use messram for optional ram
-- Fix Step command (doesn't work due to missing interrupt emulation)
-
-The cassette uses 2 bits for input, plus a D flipflop and a 74LS221 oneshot, with the pulse width set
- by 0.02uf and 24k (= 336 usec). The pulse is started by a H->L transistion of the input. At the end
- of the pulse, the current input is passed through the flipflop.
-
-Cassette start address is always 1000. The end address must be entered into 13DC/DD (little-endian).
-Then press W to save. To load, press L. If it says r at the end, it indicates a bad checksum.
-
-******************************************************************************************************/
-
-
-#include "emu.h"
-
-#include "cpu/z80/z80.h"
-#include "machine/timer.h"
-#include "machine/z80pio.h"
-#include "imagedev/cassette.h"
-
-#include "speaker.h"
-
-#include "pro80.lh"
-
-
-class pro80_state : public driver_device
-{
-public:
- pro80_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_maincpu(*this, "maincpu")
- , m_cass(*this, "cassette")
- , m_io_keyboard(*this, "LINE%u", 0)
- , m_digits(*this, "digit%u", 0U)
- { }
-
- void pro80(machine_config &config);
-
-private:
- DECLARE_WRITE8_MEMBER(digit_w);
- DECLARE_WRITE8_MEMBER(segment_w);
- DECLARE_READ8_MEMBER(kp_r);
- TIMER_DEVICE_CALLBACK_MEMBER(kansas_r);
-
- void pro80_io(address_map &map);
- void pro80_mem(address_map &map);
-
- uint8_t m_digit_sel;
- uint8_t m_cass_in;
- uint16_t m_cass_data[4];
- void machine_reset() override;
- virtual void machine_start() override { m_digits.resolve(); }
- required_device<cpu_device> m_maincpu;
- required_device<cassette_image_device> m_cass;
- required_ioport_array<6> m_io_keyboard;
- output_finder<6> m_digits;
-};
-
-TIMER_DEVICE_CALLBACK_MEMBER( pro80_state::kansas_r )
-{
- m_cass_data[1]++;
- uint8_t cass_ws = (m_cass->input() > +0.03) ? 1 : 0;
-
- if (cass_ws != m_cass_data[0])
- {
- m_cass_data[0] = cass_ws;
- m_cass_in = ((m_cass_data[1] < 12) ? 0x10 : 0); // get data bit
- m_cass_data[1] = 0;
- if (!cass_ws) m_cass_in |= 0x20; // set sync bit
- }
-}
-
-WRITE8_MEMBER( pro80_state::digit_w )
-{
- // --xx xxxx digit select
- // -x-- ---- cassette out
- // x--- ---- ???
- m_digit_sel = data & 0x3f;
- m_cass->output( BIT(data, 6) ? -1.0 : +1.0);
-}
-
-WRITE8_MEMBER( pro80_state::segment_w )
-{
- if (m_digit_sel)
- {
- for (u8 i = 0; i < 6; i++)
- if (!BIT(m_digit_sel, i))
- m_digits[i] = data;
-
- m_digit_sel = 0;
- }
-}
-
-READ8_MEMBER( pro80_state::kp_r )
-{
- uint8_t data = 0x0f;
-
- for (u8 i = 0; i < 6; i++)
- if (!BIT(m_digit_sel, i))
- data &= m_io_keyboard[i]->read();
-
- data |= m_cass_in;
- data |= 0xc0;
- m_cass_in = 0;
- return data;
-}
-
-void pro80_state::pro80_mem(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0x03ff).rom();
- map(0x1000, 0x13ff).ram();
- map(0x1400, 0x17ff).ram(); // 2nd RAM is optional
-}
-
-void pro80_state::pro80_io(address_map &map)
-{
- map.unmap_value_high();
- map.global_mask(0xff);
- map(0x40, 0x43).rw("pio", FUNC(z80pio_device::read), FUNC(z80pio_device::write));
- map(0x44, 0x47).r(FUNC(pro80_state::kp_r));
- map(0x48, 0x4b).w(FUNC(pro80_state::digit_w));
- map(0x4c, 0x4f).w(FUNC(pro80_state::segment_w));
-}
-
-/* Input ports */
-static INPUT_PORTS_START( pro80 )
- PORT_START("LINE0")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("CR") PORT_CODE(KEYCODE_L)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("CW") PORT_CODE(KEYCODE_W)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("SSt") PORT_CODE(KEYCODE_S)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Res") PORT_CODE(KEYCODE_EQUALS)
- PORT_START("LINE1")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("EXE") PORT_CODE(KEYCODE_ENTER)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("NEx") PORT_CODE(KEYCODE_N) PORT_CODE(KEYCODE_UP)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("REx") PORT_CODE(KEYCODE_R)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("MEx") PORT_CODE(KEYCODE_M)
- PORT_START("LINE2")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("3") PORT_CODE(KEYCODE_3)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("7 [IY]") PORT_CODE(KEYCODE_7)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("B") PORT_CODE(KEYCODE_B)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("F") PORT_CODE(KEYCODE_F)
- PORT_START("LINE3")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("2") PORT_CODE(KEYCODE_2)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("6 [IX]") PORT_CODE(KEYCODE_6)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("A") PORT_CODE(KEYCODE_A)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("E") PORT_CODE(KEYCODE_E)
- PORT_START("LINE4")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("1") PORT_CODE(KEYCODE_1)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("5 [PC]") PORT_CODE(KEYCODE_5)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("9 [H]") PORT_CODE(KEYCODE_9)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("D") PORT_CODE(KEYCODE_D)
- PORT_START("LINE5")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("0") PORT_CODE(KEYCODE_0)
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("4 [SP]") PORT_CODE(KEYCODE_4)
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("8 [L]") PORT_CODE(KEYCODE_8)
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("C") PORT_CODE(KEYCODE_C)
-INPUT_PORTS_END
-
-void pro80_state::machine_reset()
-{
- m_digit_sel = 0;
- m_cass_in = 0;
-}
-
-void pro80_state::pro80(machine_config &config)
-{
- /* basic machine hardware */
- Z80(config, m_maincpu, XTAL(4'000'000) / 2);
- m_maincpu->set_addrmap(AS_PROGRAM, &pro80_state::pro80_mem);
- m_maincpu->set_addrmap(AS_IO, &pro80_state::pro80_io);
-
- /* video hardware */
- config.set_default_layout(layout_pro80);
-
- Z80PIO(config, "pio", XTAL(4'000'000) / 2);
-
- /* sound hardware */
- SPEAKER(config, "mono").front_center();
-
- // Cassette
- CASSETTE(config, m_cass);
- m_cass->add_route(ALL_OUTPUTS, "mono", 0.05);
- TIMER(config, "kansas_r").configure_periodic(FUNC(pro80_state::kansas_r), attotime::from_hz(40000)); // cass read
-}
-
-/* ROM definition */
-ROM_START( pro80 )
- ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
- // This rom dump is taken out of manual for this machine
- ROM_LOAD( "pro80.bin", 0x0000, 0x0400, CRC(1bf6e0a5) SHA1(eb45816337e08ed8c30b589fc24960dc98b94db2))
-ROM_END
-
-/* Driver */
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1981, pro80, 0, 0, pro80, pro80, pro80_state, empty_init, "Protec", "Pro-80", MACHINE_NOT_WORKING )