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https://github.com/holub/mame
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(MESS) Updated ht68k to use the n68681 device. Also added some infos from the manual. Currently the driver works if you have a system disk inserted at boot, but not without. See MT05148.(nw)
This commit is contained in:
Ivan Vangelista
parent
c5efbc40d2
commit
71c7693bb6
@ -1,54 +1,66 @@
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/***************************************************************************
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Hawthorne Technologies TinyGiant HT68k
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Hawthorne Technology TinyGiant HT68k
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29/11/2009 Skeleton driver.
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Monitor commands (most do unknown things) (must be in Uppercase)
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B boot
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C compare memory blocks
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D dump memory to screen
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E Edit memory (. to escape)
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F
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G
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K
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L
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M
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P
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R
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S
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T
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W
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X (. to escape)
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Monitor commands (from ht68k manual) (must be in Uppercase)
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B Load binary file from disk.
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C Compare memory.
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D Display memory in Hex and ASCII.
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E Examine and/or change memory (2 bytes). (. to escape)
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F Fill a block of memory with a value.
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G Go to an address and execute program.
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K Peek.
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L Load program from serial port.
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M Move memory.
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P Poke.
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R Read binary file from disk.
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S System boot.
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T Test printer.
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W Write binary file to disk.
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X Examine long and/or change memory (4 bytes). (. to escape)
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Lot of infos available at: http://www.classiccmp.org/cini/ht68k.htm
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****************************************************************************/
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#include "emu.h"
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#include "cpu/m68000/m68000.h"
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#include "machine/68681.h"
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#include "machine/n68681.h"
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#include "machine/wd_fdc.h"
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#include "machine/terminal.h"
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#include "machine/serial.h"
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class ht68k_state : public driver_device
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{
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public:
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ht68k_state(const machine_config &mconfig, device_type type, const char *tag)
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: driver_device(mconfig, type, tag),
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: driver_device(mconfig, type, tag),
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m_maincpu(*this, "maincpu"),
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m_terminal(*this, TERMINAL_TAG),
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m_duart(*this, "duart68681"),
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m_fdc(*this, "wd1770")
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,
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m_p_ram(*this, "p_ram"){ }
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m_fdc(*this, "wd1770"),
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m_floppy0(*this, "wd1770:0"),
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m_floppy1(*this, "wd1770:1"),
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m_floppy2(*this, "wd1770:2"),
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m_floppy3(*this, "wd1770:3"),
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m_floppy(NULL),
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m_p_ram(*this, "p_ram"){ }
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required_device<cpu_device> m_maincpu;
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required_device<generic_terminal_device> m_terminal;
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required_device<duart68681_device> m_duart;
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required_device<duartn68681_device> m_duart;
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required_device<wd1770_t> m_fdc;
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DECLARE_WRITE8_MEMBER(kbd_put);
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DECLARE_WRITE_LINE_MEMBER(ht68k_fdc_intrq_w);
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required_device<floppy_connector> m_floppy0;
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required_device<floppy_connector> m_floppy1;
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required_device<floppy_connector> m_floppy2;
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required_device<floppy_connector> m_floppy3;
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floppy_image_device *m_floppy;
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DECLARE_WRITE_LINE_MEMBER(duart_irq_handler);
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DECLARE_WRITE_LINE_MEMBER(duart_txb);
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DECLARE_READ8_MEMBER(duart_input);
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DECLARE_WRITE8_MEMBER(duart_output);
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required_shared_ptr<UINT16> m_p_ram;
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virtual void machine_reset();
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};
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@ -60,7 +72,7 @@ static ADDRESS_MAP_START(ht68k_mem, AS_PROGRAM, 16, ht68k_state)
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//AM_RANGE(0x00080000, 0x000fffff) // Expansion
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//AM_RANGE(0x00d80000, 0x00d8ffff) // Printer
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AM_RANGE(0x00e00000, 0x00e00007) AM_MIRROR(0xfff8) AM_DEVREADWRITE8("wd1770", wd1770_t, read, write, 0x00ff) // FDC WD1770
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AM_RANGE(0x00e80000, 0x00e800ff) AM_MIRROR(0xff00) AM_DEVREADWRITE8_LEGACY("duart68681", duart68681_r, duart68681_w, 0xff )
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AM_RANGE(0x00e80000, 0x00e800ff) AM_MIRROR(0xff00) AM_DEVREADWRITE8("duart68681", duartn68681_device, read, write, 0xff )
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AM_RANGE(0x00f00000, 0x00f07fff) AM_ROM AM_MIRROR(0xf8000) AM_REGION("user1",0)
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ADDRESS_MAP_END
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@ -68,7 +80,6 @@ ADDRESS_MAP_END
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static INPUT_PORTS_START( ht68k )
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INPUT_PORTS_END
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void ht68k_state::machine_reset()
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{
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UINT8* user1 = memregion("user1")->base();
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@ -76,59 +87,56 @@ void ht68k_state::machine_reset()
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memcpy((UINT8*)m_p_ram.target(),user1,0x8000);
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m_maincpu->reset();
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m_fdc->reset();
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m_fdc->set_floppy(NULL);
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}
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static void duart_irq_handler(device_t *device, int state, UINT8 vector)
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WRITE_LINE_MEMBER(ht68k_state::duart_irq_handler)
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{
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ht68k_state *drvstate = device->machine().driver_data<ht68k_state>();
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drvstate->m_maincpu->set_input_line_and_vector(M68K_IRQ_3, state, M68K_INT_ACK_AUTOVECTOR);
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m_maincpu->set_input_line_and_vector(M68K_IRQ_3, state, M68K_INT_ACK_AUTOVECTOR);
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}
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static void duart_tx(device_t *device, int channel, UINT8 data)
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WRITE_LINE_MEMBER(ht68k_state::duart_txb)
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{
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ht68k_state *state = device->machine().driver_data<ht68k_state>();
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state->m_terminal->write(device->machine().driver_data()->generic_space(), 0, data);
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//This is the second serial channel named AUX, for modem or other serial devices.
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}
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static UINT8 duart_input(device_t *device)
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READ8_MEMBER(ht68k_state::duart_input)
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{
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return 0;
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}
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static void duart_output(device_t *device, UINT8 data)
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WRITE8_MEMBER(ht68k_state::duart_output)
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{
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ht68k_state *state = device->machine().driver_data<ht68k_state>();
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m_floppy = NULL;
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static const char *names[] = { "wd1770:0", "wd1770:1", "wd1770:2", "wd1770:3" };
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floppy_image_device *floppy = 0;
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for(int i=0; i<4; i++) {
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if(BIT(data, 7-i)==0) {
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floppy_connector *con = device->machine().device<floppy_connector>(names[i]);
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if(con)
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floppy = con->get_device();
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break;
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}
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}
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if (floppy) floppy->ss_w(BIT(data,3) ? 0 : 1);
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state->m_fdc->set_floppy(floppy);
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if ((BIT(data, 7)) == 0) { m_floppy = m_floppy0->get_device(); }
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if ((BIT(data, 6)) == 0) { m_floppy = m_floppy1->get_device(); }
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if ((BIT(data, 5)) == 0) { m_floppy = m_floppy2->get_device(); }
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if ((BIT(data, 4)) == 0) { m_floppy = m_floppy3->get_device(); }
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m_fdc->set_floppy(m_floppy);
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if (m_floppy) {m_floppy->ss_w(BIT(data,3) ? 0 : 1);}
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}
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WRITE8_MEMBER( ht68k_state::kbd_put )
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static const rs232_port_interface rs232_intf =
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{
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duart68681_rx_data(m_duart, 0, data);
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}
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static GENERIC_TERMINAL_INTERFACE( terminal_intf )
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{
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DEVCB_DRIVER_MEMBER(ht68k_state, kbd_put)
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DEVCB_DEVICE_LINE_MEMBER("duart68681", duartn68681_device, rx_a_w),
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DEVCB_NULL,
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DEVCB_NULL,
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DEVCB_NULL,
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DEVCB_NULL
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};
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static const duart68681_config ht68k_duart68681_config =
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static const duartn68681_config ht68k_duart68681_config =
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{
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duart_irq_handler,
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duart_tx,
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duart_input,
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duart_output
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DEVCB_DRIVER_LINE_MEMBER(ht68k_state, duart_irq_handler),
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DEVCB_DEVICE_LINE_MEMBER("rs232", serial_port_device, tx), //serial channel CON (console, for terminal, 9600 baud)
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DEVCB_DRIVER_LINE_MEMBER(ht68k_state, duart_txb), // serial channel AUX (auxiliary, for modem or other serial device, 1200 baud)
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DEVCB_DRIVER_MEMBER(ht68k_state, duart_input),
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DEVCB_DRIVER_MEMBER(ht68k_state, duart_output)
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};
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static SLOT_INTERFACE_START( ht68k_floppies )
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@ -140,12 +148,10 @@ static MACHINE_CONFIG_START( ht68k, ht68k_state )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu",M68000, XTAL_8MHz)
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MCFG_CPU_PROGRAM_MAP(ht68k_mem)
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MCFG_RS232_PORT_ADD("rs232", rs232_intf, default_rs232_devices, "serial_terminal")
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/* video hardware */
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MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, terminal_intf)
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MCFG_DUART68681_ADD( "duart68681", XTAL_8MHz / 2, ht68k_duart68681_config )
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MCFG_DUARTN68681_ADD( "duart68681", XTAL_8MHz / 2, ht68k_duart68681_config )
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MCFG_WD1770x_ADD("wd1770", XTAL_8MHz )
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@ -165,4 +171,4 @@ ROM_END
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/* Driver */
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/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
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COMP( 1987, ht68k, 0, 0, ht68k, ht68k, driver_device, 0, "Hawthorne Technologies", "TinyGiant HT68k", GAME_NO_SOUND)
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COMP( 1987, ht68k, 0, 0, ht68k, ht68k, driver_device, 0, "Hawthorne Technology", "TinyGiant HT68k", GAME_NO_SOUND)
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