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https://github.com/holub/mame
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(MESS) votrpss : connected devices (nw)
This commit is contained in:
Robbbert
parent
726aa02074
commit
cec876161a
@ -53,20 +53,30 @@
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<kevtris> but that's everything you need
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<LordNLptp> yeah
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* (driver structure copied from vtech1.c)
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Things to be looked at:
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- Serial doesn't work, so has been disabled.
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- Bottom 3 dips must be off/serial/off, or else nothing works.
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- No sound at all.
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- volume and pitch should be controlled by ppi outputs
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- pit to be hooked up
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- bit 0 of portc is not connected according to text above, but it
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completely changes the irq operation.
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******************************************************************************/
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/* Core includes */
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#include "emu.h"
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#include "cpu/z80/z80.h"
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#include "votrpss.lh"
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//#include "votrpss.lh"
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/* Components */
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//#include "sound/ay8910.h"
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//#include "sound/votrax.h"
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//#include "machine/i8255.h"
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//#include "machine/pit8253.h"
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//#include "machine/i8251.h"
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#include "sound/ay8910.h"
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#include "sound/votrax.h"
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#include "machine/i8255.h"
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#include "machine/pit8253.h"
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#include "machine/i8251.h"
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#include "machine/serial.h"
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/* For testing */
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#include "machine/terminal.h"
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@ -76,37 +86,35 @@ class votrpss_state : public driver_device
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{
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public:
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votrpss_state(const machine_config &mconfig, device_type type, const char *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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: 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_ppi(*this, "ppi")
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, m_uart(*this, "uart")
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{ }
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DECLARE_WRITE8_MEMBER(kbd_put);
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DECLARE_READ8_MEMBER(ppi_pa_r);
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DECLARE_READ8_MEMBER(ppi_pb_r);
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DECLARE_READ8_MEMBER(ppi_pc_r);
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DECLARE_WRITE8_MEMBER(ppi_pa_w);
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DECLARE_WRITE8_MEMBER(ppi_pb_w);
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DECLARE_WRITE8_MEMBER(ppi_pc_w);
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TIMER_DEVICE_CALLBACK_MEMBER(irq_timer);
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TIMER_DEVICE_CALLBACK_MEMBER(serial_tick);
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IRQ_CALLBACK_MEMBER(irq_ack);
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private:
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UINT8 m_term_data;
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UINT8 m_porta;
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UINT8 m_portb;
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UINT8 m_portc;
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virtual void machine_start();
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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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DECLARE_READ8_MEMBER(votrpss_00_r);
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DECLARE_READ8_MEMBER(votrpss_02_r);
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DECLARE_READ8_MEMBER(votrpss_41_r);
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DECLARE_WRITE8_MEMBER( votrpss_kbd_put );
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UINT8 m_term_data;
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UINT8 m_term_status;
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required_device<i8255_device> m_ppi;
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required_device<i8251_device> m_uart;
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};
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READ8_MEMBER( votrpss_state::votrpss_02_r )
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{
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return m_term_status;
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}
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READ8_MEMBER( votrpss_state::votrpss_00_r )
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{
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m_term_status = 0;
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return m_term_data;
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}
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READ8_MEMBER( votrpss_state::votrpss_41_r )
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{
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return 1;
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}
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/******************************************************************************
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Address Maps
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@ -124,15 +132,12 @@ ADDRESS_MAP_END
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static ADDRESS_MAP_START(votrpss_io, AS_IO, 8, votrpss_state)
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ADDRESS_MAP_GLOBAL_MASK(0xff)
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AM_RANGE(0x00, 0x00) AM_READ(votrpss_00_r)
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AM_RANGE(0x01, 0x01) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write)
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AM_RANGE(0x02, 0x02) AM_READ(votrpss_02_r)
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AM_RANGE(0x41, 0x41) AM_READ(votrpss_41_r)
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//AM_RANGE(0x00, 0xff) AM_NOP /* temporary */
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//AM_RANGE(0x00, 0x03) AM_READWRITE(8255ppi_r, 8255ppi_w) AM_MIRROR (0x3c)
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//AM_RANGE(0x40, 0x41) AM_READWRITE(i8251_r, i8251_w) AM_MIRROR (0x3e)
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//AM_RANGE(0x80, 0x83) AM_READWRITE(pit8253_r, pit8253_w) AM_MIRROR (0x3c)
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//AM_RANGE(0xc0, 0xc3) AM_DEVREADWRITE("ay1", ay8910_device, data_r, data_w) AM_MIRROR (0x3c)
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AM_RANGE(0x00, 0x03) AM_MIRROR(0x3c) AM_DEVREADWRITE("ppi", i8255_device, read, write)
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AM_RANGE(0x40, 0x40) AM_MIRROR(0x3e) AM_DEVREADWRITE("uart", i8251_device, data_r, data_w)
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AM_RANGE(0x41, 0x41) AM_MIRROR(0x3e) AM_DEVREADWRITE("uart", i8251_device, status_r, control_w)
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AM_RANGE(0x80, 0x83) AM_MIRROR(0x3c) AM_DEVREADWRITE("pit", pit8253_device, read, write)
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AM_RANGE(0xc0, 0xc0) AM_MIRROR(0x3e) AM_DEVREADWRITE("ay", ay8910_device, data_r, address_w)
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AM_RANGE(0xc1, 0xc1) AM_MIRROR(0x3e) AM_DEVREADWRITE("ay", ay8910_device, data_r, data_w)
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ADDRESS_MAP_END
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@ -168,17 +173,151 @@ static INPUT_PORTS_START(votrpss)
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PORT_DIPSETTING( 0x80, DEF_STR ( On ) )
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INPUT_PORTS_END
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WRITE8_MEMBER( votrpss_state::votrpss_kbd_put )
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void votrpss_state::machine_start()
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{
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m_term_data = data;
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m_term_status = 0x20;
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m_maincpu->set_irq_acknowledge_callback(device_irq_acknowledge_delegate(FUNC(votrpss_state::irq_ack),this));
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}
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static GENERIC_TERMINAL_INTERFACE( votrpss_terminal_intf )
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TIMER_DEVICE_CALLBACK_MEMBER( votrpss_state::irq_timer )
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{
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DEVCB_DRIVER_MEMBER(votrpss_state, votrpss_kbd_put)
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m_maincpu->set_input_line(0, ASSERT_LINE);
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}
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IRQ_CALLBACK_MEMBER( votrpss_state::irq_ack )
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{
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m_maincpu->set_input_line(0, CLEAR_LINE);
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return 0x38;
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}
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static const i8251_interface uart_intf =
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{
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//DEVCB_DEVICE_LINE_MEMBER("rs232", serial_port_device, rx),
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//DEVCB_DEVICE_LINE_MEMBER("rs232", serial_port_device, tx),
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//DEVCB_DEVICE_LINE_MEMBER("rs232", rs232_port_device, dsr_r),
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//DEVCB_DEVICE_LINE_MEMBER("rs232", rs232_port_device, dtr_w),
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//DEVCB_DEVICE_LINE_MEMBER("rs232", rs232_port_device, rts_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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DEVCB_NULL,
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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 rs232_port_interface rs232_intf =
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{
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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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DEVCB_NULL
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};
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static const struct pit8253_interface pit_intf =
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{
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{
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{
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XTAL_8MHz, /* Timer 0: baud rate gen for 8251 */
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DEVCB_NULL,
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DEVCB_NULL
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}, {
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XTAL_8MHz / 256, /* Timer 1: Pitch */
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DEVCB_NULL,
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DEVCB_NULL
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}, {
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XTAL_8MHz / 4096, /* Timer 2: Volume */
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DEVCB_NULL,
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DEVCB_NULL
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}
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}
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};
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READ8_MEMBER( votrpss_state::ppi_pa_r )
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{
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UINT8 ret = m_term_data;
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m_term_data = 0;
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return ret;
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}
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READ8_MEMBER( votrpss_state::ppi_pb_r )
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{
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return m_portb;
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}
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// Bit 0 controls what happens at interrupt time. See code around 518.
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READ8_MEMBER( votrpss_state::ppi_pc_r )
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{
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UINT8 data = 0;
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if (m_term_data)
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{
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m_ppi->pc4_w(0); // send a strobe pulse
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data |= 0x20;
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}
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return (m_portc & 0xdb) | data;
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//return data;
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}
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WRITE8_MEMBER( votrpss_state::ppi_pa_w )
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{
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m_porta = data;
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}
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WRITE8_MEMBER( votrpss_state::ppi_pb_w )
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{
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m_portb = data;
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m_terminal->write(space, offset, data&0x7f);
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}
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WRITE8_MEMBER( votrpss_state::ppi_pc_w )
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{
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m_portc = data;
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}
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static I8255_INTERFACE( ppi_intf )
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{
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DEVCB_DRIVER_MEMBER(votrpss_state, ppi_pa_r), // Port A read
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DEVCB_DRIVER_MEMBER(votrpss_state, ppi_pa_w), // Port A write
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DEVCB_DRIVER_MEMBER(votrpss_state, ppi_pb_r), // Port B read
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DEVCB_DRIVER_MEMBER(votrpss_state, ppi_pb_w), // Port B write
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DEVCB_DRIVER_MEMBER(votrpss_state, ppi_pc_r), // Port C read
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DEVCB_DRIVER_MEMBER(votrpss_state, ppi_pc_w), // Port C write
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};
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static const ay8910_interface ay8910_intf =
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{
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AY8910_LEGACY_OUTPUT, // flags
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AY8910_DEFAULT_LOADS, // channel load in ohms
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DEVCB_NULL, // port A read
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DEVCB_INPUT_PORT("DSW1"), // port B read
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DEVCB_DEVICE_MEMBER("votrax", votrax_sc01_device, write), // port A write
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DEVCB_NULL // port B write
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};
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static struct votrax_sc01_interface votrax_interface =
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{
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};
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WRITE8_MEMBER( votrpss_state::kbd_put )
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{
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m_term_data = 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(votrpss_state, kbd_put)
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};
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TIMER_DEVICE_CALLBACK_MEMBER( votrpss_state::serial_tick )
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{
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m_uart->receive_clock();
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m_uart->transmit_clock();
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}
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/******************************************************************************
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Machine Drivers
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******************************************************************************/
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@ -188,22 +327,28 @@ static MACHINE_CONFIG_START( votrpss, votrpss_state )
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MCFG_CPU_ADD("maincpu", Z80, XTAL_8MHz/2) /* 4.000 MHz, verified */
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MCFG_CPU_PROGRAM_MAP(votrpss_mem)
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MCFG_CPU_IO_MAP(votrpss_io)
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//MCFG_QUANTUM_TIME(attotime::from_hz(60))
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/* video hardware */
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//MCFG_DEFAULT_LAYOUT(layout_votrpss)
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/* sound hardware */
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//MCFG_SPEAKER_STANDARD_MONO("mono")
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//MCFG_SOUND_ADD("ay1", AY8910, XTAL_8MHz/4) /* 2.000 MHz, verified */
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//MCFG_SOUND_CONFIG(ay8910_config)
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//MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
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//votrax goes here too
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MCFG_SPEAKER_STANDARD_MONO("mono")
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MCFG_SOUND_ADD("ay", AY8910, XTAL_8MHz/4) /* 2.000 MHz, verified */
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MCFG_SOUND_CONFIG(ay8910_intf)
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MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
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MCFG_VOTRAX_SC01_ADD("votrax", 1700000, votrax_interface ) /* 1.70 MHz? needs verify */
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MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
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/* printer */
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//MCFG_PRINTER_ADD("printer")
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/* Devices */
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MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, terminal_intf)
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MCFG_I8251_ADD("uart", uart_intf)
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MCFG_PIT8253_ADD( "pit", pit_intf)
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MCFG_I8255_ADD("ppi", ppi_intf)
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MCFG_TIMER_DRIVER_ADD_PERIODIC("irq_timer", votrpss_state, irq_timer, attotime::from_msec(10))
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MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, votrpss_terminal_intf)
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/* Serial components - comment out if not needed */
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//MCFG_TIMER_DRIVER_ADD_PERIODIC("serial", votrpss_state, serial_tick, attotime::from_hz(153600))
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//MCFG_RS232_PORT_ADD("rs232", rs232_intf, default_rs232_devices, "serial_terminal")
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MACHINE_CONFIG_END
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