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diff --git a/src/mame/drivers/ht68k.cpp b/src/mame/drivers/ht68k.cpp
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-// license:BSD-3-Clause
-// copyright-holders:Miodrag Milanovic
-/***************************************************************************
-
- Hawthorne Technology TinyGiant HT68k
-
- 29/11/2009 Skeleton driver.
-
-Monitor commands (from ht68k manual) (must be in Uppercase)
-B Load binary file from disk.
-C Compare memory.
-D Display memory in Hex and ASCII.
-E Examine and/or change memory (2 bytes). (. to escape)
-F Fill a block of memory with a value.
-G Go to an address and execute program.
-K Peek.
-L Load program from serial port.
-M Move memory.
-P Poke.
-R Read binary file from disk.
-S System boot.
-T Test printer.
-W Write binary file to disk.
-X Examine long and/or change memory (4 bytes). (. to escape)
-
-
-Lot of infos available at: http://www.classiccmp.org/cini/ht68k.htm
-
-****************************************************************************/
-
-#include "emu.h"
-#include "bus/rs232/rs232.h"
-#include "cpu/m68000/m68000.h"
-#include "imagedev/floppy.h"
-#include "machine/mc68681.h"
-#include "machine/wd_fdc.h"
-#include "softlist.h"
-
-class ht68k_state : public driver_device
-{
-public:
- ht68k_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag),
- m_maincpu(*this, "maincpu"),
- m_duart(*this, "duart68681"),
- m_fdc(*this, "wd1770"),
- m_floppy0(*this, "wd1770:0"),
- m_floppy1(*this, "wd1770:1"),
- m_floppy2(*this, "wd1770:2"),
- m_floppy3(*this, "wd1770:3"),
- m_floppy(nullptr),
- m_p_ram(*this, "p_ram")
- {
- }
-
- void ht68k(machine_config &config);
-
-private:
- required_device<cpu_device> m_maincpu;
- required_device<mc68681_device> m_duart;
- required_device<wd1770_device> m_fdc;
- required_device<floppy_connector> m_floppy0;
- required_device<floppy_connector> m_floppy1;
- required_device<floppy_connector> m_floppy2;
- required_device<floppy_connector> m_floppy3;
- floppy_image_device *m_floppy;
- DECLARE_WRITE_LINE_MEMBER(duart_irq_handler);
- DECLARE_WRITE_LINE_MEMBER(duart_txb);
- DECLARE_WRITE8_MEMBER(duart_output);
- required_shared_ptr<uint16_t> m_p_ram;
- virtual void machine_reset() override;
- void ht68k_mem(address_map &map);
-};
-
-
-void ht68k_state::ht68k_mem(address_map &map)
-{
- map.unmap_value_high();
- map(0x00000000, 0x0007ffff).ram().share("p_ram"); // 512 KB RAM / ROM at boot
- //map(0x00080000, 0x000fffff) // Expansion
- //map(0x00d80000, 0x00d8ffff) // Printer
- map(0x00e00000, 0x00e00007).mirror(0xfff8).rw(m_fdc, FUNC(wd1770_device::read), FUNC(wd1770_device::write)).umask16(0x00ff); // FDC WD1770
- map(0x00e80000, 0x00e800ff).mirror(0xff00).rw(m_duart, FUNC(mc68681_device::read), FUNC(mc68681_device::write)).umask16(0x00ff);
- map(0x00f00000, 0x00f07fff).rom().mirror(0xf8000).region("bios", 0);
-}
-
-/* Input ports */
-static INPUT_PORTS_START( ht68k )
-INPUT_PORTS_END
-
-void ht68k_state::machine_reset()
-{
- uint8_t *bios = memregion("bios")->base();
-
- memcpy((uint8_t*)m_p_ram.target(),bios,0x8000);
-
- m_fdc->reset();
- m_fdc->set_floppy(nullptr);
-}
-
-WRITE_LINE_MEMBER(ht68k_state::duart_irq_handler)
-{
- m_maincpu->set_input_line(M68K_IRQ_3, state);
-}
-
-WRITE_LINE_MEMBER(ht68k_state::duart_txb)
-{
- //This is the second serial channel named AUX, for modem or other serial devices.
-}
-
-WRITE8_MEMBER(ht68k_state::duart_output)
-{
- m_floppy = nullptr;
-
- if ((BIT(data, 7)) == 0) { m_floppy = m_floppy0->get_device(); }
- if ((BIT(data, 6)) == 0) { m_floppy = m_floppy1->get_device(); }
- if ((BIT(data, 5)) == 0) { m_floppy = m_floppy2->get_device(); }
- if ((BIT(data, 4)) == 0) { m_floppy = m_floppy3->get_device(); }
-
- m_fdc->set_floppy(m_floppy);
-
- if (m_floppy) {m_floppy->ss_w(BIT(data,3) ? 0 : 1);}
-}
-
-static void ht68k_floppies(device_slot_interface &device)
-{
- device.option_add("525dd", FLOPPY_525_DD);
-}
-
-
-void ht68k_state::ht68k(machine_config &config)
-{
- /* basic machine hardware */
- M68000(config, m_maincpu, 8_MHz_XTAL);
- m_maincpu->set_addrmap(AS_PROGRAM, &ht68k_state::ht68k_mem);
-
- /* video hardware */
- MC68681(config, m_duart, 8_MHz_XTAL / 2);
- m_duart->set_clocks(500000, 500000, 1000000, 1000000);
- m_duart->irq_cb().set(FUNC(ht68k_state::duart_irq_handler));
- m_duart->a_tx_cb().set("rs232", FUNC(rs232_port_device::write_txd));
- m_duart->b_tx_cb().set(FUNC(ht68k_state::duart_txb));
- m_duart->outport_cb().set(FUNC(ht68k_state::duart_output));
-
- rs232_port_device &rs232(RS232_PORT(config, "rs232", default_rs232_devices, "terminal"));
- rs232.rxd_handler().set(m_duart, FUNC(mc68681_device::rx_a_w));
-
- WD1770(config, m_fdc, 8_MHz_XTAL);
-
- FLOPPY_CONNECTOR(config, "wd1770:0", ht68k_floppies, "525dd", floppy_image_device::default_floppy_formats);
- FLOPPY_CONNECTOR(config, "wd1770:1", ht68k_floppies, "525dd", floppy_image_device::default_floppy_formats);
- FLOPPY_CONNECTOR(config, "wd1770:2", ht68k_floppies, "525dd", floppy_image_device::default_floppy_formats);
- FLOPPY_CONNECTOR(config, "wd1770:3", ht68k_floppies, "525dd", floppy_image_device::default_floppy_formats);
-
- SOFTWARE_LIST(config, "flop525_list").set_original("ht68k");
-}
-
-/* ROM definition */
-ROM_START( ht68k )
- ROM_REGION16_BE( 0x8000, "bios", ROMREGION_ERASEFF )
- ROM_LOAD16_BYTE( "ht68k-u4.bin", 0x0001, 0x4000, CRC(3fbcdd0a) SHA1(45fcbbf920dc1e9eada3b7b0a55f5720d08ffdd5))
- ROM_LOAD16_BYTE( "ht68k-u3.bin", 0x0000, 0x4000, CRC(1d85d101) SHA1(8ba01e1595b0b3c4fb128a4a50242f3588b89c43))
-ROM_END
-
-/* Driver */
-
-// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
-COMP( 1987, ht68k, 0, 0, ht68k, ht68k, ht68k_state, empty_init, "Hawthorne Technology", "TinyGiant HT68k", MACHINE_NO_SOUND)