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-rw-r--r--src/mame/drivers/selz80.cpp299
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diff --git a/src/mame/drivers/selz80.cpp b/src/mame/drivers/selz80.cpp
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--- a/src/mame/drivers/selz80.cpp
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-// license:BSD-3-Clause
-// copyright-holders:Robbbert
-/***************************************************************************
-
- SEL Z80 Trainer (LEHRSYSTEME)
-
- 31/08/2010 Skeleton driver.
- 23/06/2011 Working [Robbbert]
-
-No diagram has been found. The following is guesswork.
-
-Test sequence: Press -, enter an address, press = to show contents, press
- up/down-arrow to cycle through addresses.
-
-Paste test: -=11H22H33H44H55H66H77H88H99HK-1000=
-Now press UP to see that the data has been entered.
-
-ToDo:
-- Keys are a guess, need to be confirmed.
-- Needs to be tested by a subject-matter expert.
-- i8255 to be added (address is unknown)
-- "Tape-Interface" to be added (has its own LED)
-- "Binary" area to be added - has 8 slide switches and a LED for each
-- Halt LED
-- "User Display" to be added - has 6 digits and a 74C917 chip
-- 3 large sockets labelled "E C B - BUS"
-
-- Unknown I/O:
-'maincpu' (00F2): unmapped i/o memory write to 000C = 00 & FF
-'maincpu' (00F8): unmapped i/o memory write to 0010 = FF & FF
-
-****************************************************************************/
-
-#include "emu.h"
-#include "cpu/z80/z80.h"
-#include "machine/i8251.h"
-#include "machine/i8279.h"
-#include "bus/rs232/rs232.h"
-#include "machine/clock.h"
-#include "video/pwm.h"
-#include "selz80.lh"
-
-
-class selz80_state : public driver_device
-{
-public:
- selz80_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")
- , m_io_keyboard(*this, "X%u", 0U)
- , m_clock(*this, "uart_clock")
- , m_display(*this, "display")
- { }
-
- void selz80(machine_config &config);
-
-protected:
- void scanlines_w(uint8_t data);
- void digit_w(uint8_t data);
- uint8_t kbd_r();
-
- void selz80_io(address_map &map);
-
- u8 m_digit;
- u8 m_seg;
- void setup_baud();
- void machine_start() override;
- required_device<cpu_device> m_maincpu;
- optional_shared_ptr<u8> m_p_ram;
- required_ioport_array<4> m_io_keyboard;
- required_device<clock_device> m_clock;
- required_device<pwm_display_device> m_display;
-
-private:
- void selz80_mem(address_map &map);
- void machine_reset() override;
-
-};
-
-class dagz80_state : public selz80_state
-{
-public:
- using selz80_state::selz80_state;
- void dagz80(machine_config &config);
-
-private:
- void dagz80_mem(address_map &map);
- void machine_reset() override;
-};
-
-void dagz80_state::dagz80_mem(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0x1fff).ram().share("ram");
- map(0xe000, 0xffff).ram();
-}
-
-void selz80_state::selz80_mem(address_map &map)
-{
- map.unmap_value_high();
- map(0x0000, 0x0fff).rom();
- map(0x1000, 0x27ff).ram(); // all 3 RAM sockets filled
- // map(0x3000, 0x37ff).rom(); // empty socket for ROM
- map(0xa000, 0xffff).rom();
-}
-
-void selz80_state::selz80_io(address_map &map)
-{
- map.unmap_value_high();
- map.global_mask(0xff);
- map(0x00, 0x01).rw("i8279", FUNC(i8279_device::read), FUNC(i8279_device::write));
- map(0x18, 0x19).rw("uart", FUNC(i8251_device::read), FUNC(i8251_device::write));
-}
-
-/* Input ports */
-static INPUT_PORTS_START( selz80 )
-/* 2 x 16-key pads
-RS SS RN MM C(IS) D(FL) E(FL') F
-EX BP TW TR 8(IX) 9(IY) A(PC) B(SP)
-RL IN - + 4(AF') 5(BC') 6(DE') 7(HL')
-RG EN SA SD 0(AF) 1(BC) 2(DE) 3(HL)
- */
- PORT_START("X0")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E FL'") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D FL") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C IS") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("MM") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RN") PORT_CODE(KEYCODE_W) PORT_CHAR('W')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SS") PORT_CODE(KEYCODE_R) PORT_CHAR('R')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RS") PORT_CODE(KEYCODE_T) PORT_CHAR('T')
-
- PORT_START("X1")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B SP") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A PC") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9 IY") PORT_CODE(KEYCODE_9) PORT_CHAR('9')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8 IX") PORT_CODE(KEYCODE_8) PORT_CHAR('8')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("TR (tape read)") PORT_CODE(KEYCODE_Y)
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("TW (tape write)") PORT_CODE(KEYCODE_U)
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BP") PORT_CODE(KEYCODE_I) PORT_CHAR('I')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("EX") PORT_CODE(KEYCODE_O) PORT_CHAR('O')
-
- PORT_START("X2")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 HL'") PORT_CODE(KEYCODE_7) PORT_CHAR('7')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6 DE'") PORT_CODE(KEYCODE_6) PORT_CHAR('6')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5 BC'") PORT_CODE(KEYCODE_5) PORT_CHAR('5')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4 AF'") PORT_CODE(KEYCODE_4) PORT_CHAR('4')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("+") PORT_CODE(KEYCODE_UP) PORT_CHAR('^')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_DOWN) PORT_CHAR('V')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("IN") PORT_CODE(KEYCODE_S) PORT_CHAR('S')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RL") PORT_CODE(KEYCODE_G) PORT_CHAR('G')
-
- PORT_START("X3")
- PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 HL") PORT_CODE(KEYCODE_3) PORT_CHAR('3')
- PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 DE") PORT_CODE(KEYCODE_2) PORT_CHAR('2')
- PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1 BC") PORT_CODE(KEYCODE_1) PORT_CHAR('1')
- PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0 AF") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
- PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SD") PORT_CODE(KEYCODE_H) PORT_CHAR('H')
- PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SA") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=')
- PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("EN") PORT_CODE(KEYCODE_K) PORT_CHAR('K')
- PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("RG") PORT_CODE(KEYCODE_L) PORT_CHAR('L')
-
- PORT_START("BJ") // baud jumper
- /* not connected to cpu, each pair of pins is connected directly to the output
- of a 4020 counter dividing the ???? clock to feed the 8251. You use a jumper
- (like the kind on the back of a IDE hard drive) to choose the speed. */
- PORT_DIPNAME( 0x0F, 0x00, "Baud Rate" )
- PORT_DIPSETTING( 0x00, "9600" )
- PORT_DIPSETTING( 0x01, "4800" )
- PORT_DIPSETTING( 0x02, "2400" )
- PORT_DIPSETTING( 0x03, "1200" )
- PORT_DIPSETTING( 0x04, "600" )
- PORT_DIPSETTING( 0x05, "300" )
- PORT_DIPSETTING( 0x06, "150" )
- PORT_DIPSETTING( 0x07, "75" )
- PORT_DIPSETTING( 0x08, "38" ) // 37.5
- PORT_DIPSETTING( 0x09, "18" ) // 17.75
- PORT_DIPSETTING( 0x0A, "9" ) // 8.875
-INPUT_PORTS_END
-
-
-void selz80_state::setup_baud()
-{
- // setup baud rate for uart
- u8 baudsw = ioport("BJ")->read() & 15;
- if (baudsw)
- {
- u32 speed = (9600*16) >> baudsw;
- m_clock->set_unscaled_clock(speed);
- }
-}
-
-void selz80_state::machine_start()
-{
- save_item(NAME(m_digit));
- save_item(NAME(m_seg));
-}
-
-void selz80_state::machine_reset()
-{
- setup_baud();
-}
-
-void dagz80_state::machine_reset()
-{
- setup_baud();
- uint8_t* rom = memregion("user1")->base();
- uint16_t size = memregion("user1")->bytes();
- memcpy(m_p_ram, rom, size);
- m_maincpu->reset();
-}
-
-void selz80_state::scanlines_w(uint8_t data)
-{
- m_digit = data;
- m_display->matrix(1 << m_digit, m_seg);
-}
-
-void selz80_state::digit_w(uint8_t data)
-{
- m_seg = bitswap<8>(data, 3, 2, 1, 0, 7, 6, 5, 4);
- m_display->matrix(1 << m_digit, m_seg);
-}
-
-uint8_t selz80_state::kbd_r()
-{
- uint8_t data = 0xff;
-
- if ((m_digit & 7) < 4)
- data = m_io_keyboard[m_digit & 3]->read();
-
- return data;
-}
-
-void selz80_state::selz80(machine_config &config)
-{
- /* basic machine hardware */
- Z80(config, m_maincpu, 4.9152_MHz_XTAL / 2); // NEC uPD780C-1 cpu
- m_maincpu->set_addrmap(AS_PROGRAM, &selz80_state::selz80_mem);
- m_maincpu->set_addrmap(AS_IO, &selz80_state::selz80_io);
-
- /* video hardware */
- config.set_default_layout(layout_selz80);
- PWM_DISPLAY(config, m_display).set_size(8, 8);
- m_display->set_segmask(0xff, 0xff);
-
- /* Devices */
- CLOCK(config, m_clock, 153'600);
- m_clock->signal_handler().set("uart", FUNC(i8251_device::write_txc));
- m_clock->signal_handler().append("uart", FUNC(i8251_device::write_rxc));
-
- i8251_device &uart(I8251(config, "uart", 0));
- uart.txd_handler().set("rs232", FUNC(rs232_port_device::write_txd));
- uart.dtr_handler().set("rs232", FUNC(rs232_port_device::write_dtr));
- uart.rts_handler().set("rs232", FUNC(rs232_port_device::write_rts));
-
- rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, nullptr));
- rs232.rxd_handler().set("uart", FUNC(i8251_device::write_rxd));
- rs232.dsr_handler().set("uart", FUNC(i8251_device::write_dsr));
- rs232.cts_handler().set("uart", FUNC(i8251_device::write_cts));
-
- i8279_device &kbdc(I8279(config, "i8279", 4.9152_MHz_XTAL / 2)); // based on divider
- kbdc.out_sl_callback().set(FUNC(selz80_state::scanlines_w)); // scan SL lines
- kbdc.out_disp_callback().set(FUNC(selz80_state::digit_w)); // display A&B
- kbdc.in_rl_callback().set(FUNC(selz80_state::kbd_r)); // kbd RL lines
- kbdc.in_shift_callback().set_constant(1); // Shift key
- kbdc.in_ctrl_callback().set_constant(1);
-}
-
-void dagz80_state::dagz80(machine_config &config)
-{
- selz80(config);
- m_maincpu->set_addrmap(AS_PROGRAM, &dagz80_state::dagz80_mem);
-}
-
-
-/* ROM definition */
-ROM_START( selz80 )
- ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
- ROM_SYSTEM_BIOS(0, "v3.3", "V3.3")
- ROMX_LOAD( "z80-trainer.rom", 0x0000, 0x1000, CRC(eed1755f) SHA1(72e6ebfccb0e50034660bc36db1a741932311ce1), ROM_BIOS(0)) // (c)TEL86/V3.3
- ROM_SYSTEM_BIOS(1, "v3.2", "V3.2")
- ROMX_LOAD( "moniz80_3.2_04.12.1985.bin", 0x0000, 0x1000, CRC(3a3cf574) SHA1(ba6cd2276ce66f3a4545baf4d396f6c06d51dc38), ROM_BIOS(1)) // (c)SEL85/V3.2
- ROM_LOAD( "term80-a000.bin", 0xa000, 0x2000, CRC(0a58c0a7) SHA1(d1b4b3b2ad0d084175b1ff6966653d8b20025252))
- ROM_LOAD( "term80-e000.bin", 0xe000, 0x2000, CRC(158e08e6) SHA1(f1add43bcf8744a01238fb893ee284872d434db5))
-ROM_END
-
-ROM_START( dagz80 )
- ROM_REGION( 0x2000, "user1", ROMREGION_ERASEFF )
- ROM_LOAD( "moni_1.5_15.08.1988.bin", 0x0000, 0x2000, CRC(318aee6e) SHA1(c698fdee401b88e673791aabcba6a9628938a075) )
-ROM_END
-
-
-/* Driver */
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1985, selz80, 0, 0, selz80, selz80, selz80_state, empty_init, "SEL", "SEL Z80 Trainer", MACHINE_NO_SOUND_HW | MACHINE_SUPPORTS_SAVE )
-COMP( 1988, dagz80, selz80, 0, dagz80, selz80, dagz80_state, empty_init, "DAG", "DAG Z80 Trainer", MACHINE_NO_SOUND_HW | MACHINE_SUPPORTS_SAVE )