mirror of
https://github.com/holub/mame
synced 2025-04-21 16:01:56 +03:00
itt1700: Very preliminary keyboard stuff (nw)
This commit is contained in:
AJR
parent
929125f5ac
commit
0045b03045
@ -3733,6 +3733,8 @@ files {
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MAME_DIR .. "src/mame/drivers/indiana.cpp",
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MAME_DIR .. "src/mame/drivers/is48x.cpp",
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MAME_DIR .. "src/mame/drivers/itt1700.cpp",
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MAME_DIR .. "src/mame/machine/itt1700_kbd.cpp",
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MAME_DIR .. "src/mame/machine/itt1700_kbd.h",
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MAME_DIR .. "src/mame/drivers/itt3030.cpp",
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MAME_DIR .. "src/mame/drivers/jade.cpp",
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MAME_DIR .. "src/mame/drivers/jonos.cpp",
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@ -18,7 +18,7 @@ This device may be related to the Intel 8251, but it is definitely not a SCN2651
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#include "emu.h"
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#include "cpu/z80/z80.h"
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#include "cpu/mcs48/mcs48.h"
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//#include "machine/nvram.h"
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#include "machine/itt1700_kbd.h"
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#include "video/mc6845.h"
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#include "screen.h"
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@ -74,7 +74,13 @@ void itt1700_state::itt1700(machine_config &config)
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m_maincpu->set_addrmap(AS_PROGRAM, &itt1700_state::mem_map);
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m_maincpu->set_addrmap(AS_IO, &itt1700_state::io_map);
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I8741(config, "upi", 16.6698_MHz_XTAL / 3); // clock guessed
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upi41_cpu_device &upi(I8741(config, "upi", 16.6698_MHz_XTAL / 3)); // clock guessed
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upi.p1_out_cb().set("keyboard", FUNC(itt1700_keyboard_device::clock_w)).bit(0);
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upi.p1_out_cb().append("keyboard", FUNC(itt1700_keyboard_device::line1_w)).bit(1);
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upi.p1_out_cb().append("keyboard", FUNC(itt1700_keyboard_device::line2_w)).bit(2);
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upi.t0_in_cb().set("keyboard", FUNC(itt1700_keyboard_device::sense_r));
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ITT1700_KEYBOARD(config, "keyboard");
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
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screen.set_raw(16.6698_MHz_XTAL, 882, 0, 720, 315, 0, 300);
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282
src/mame/machine/itt1700_kbd.cpp
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282
src/mame/machine/itt1700_kbd.cpp
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@ -0,0 +1,282 @@
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// license:BSD-3-Clause
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// copyright-holders:AJR
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/***********************************************************************************************************************************
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Preliminary ITT 1700 keyboard emulation.
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***********************************************************************************************************************************/
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#include "emu.h"
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#include "machine/itt1700_kbd.h"
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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DEFINE_DEVICE_TYPE(ITT1700_KEYBOARD, itt1700_keyboard_device, "itt1700_kbd", "ITT 1700 keyboard")
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//**************************************************************************
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// DEVICE DEFINITION
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//**************************************************************************
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//-------------------------------------------------
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// itt1700_keyboard_device - constructor
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//-------------------------------------------------
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itt1700_keyboard_device::itt1700_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
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: device_t(mconfig, ITT1700_KEYBOARD, tag, owner, clock)
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, m_clock_state(true)
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, m_line1_state(true)
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, m_line2_state(true)
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, m_scan_counter(0)
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, m_keys(*this, "KEY%u", 0U)
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void itt1700_keyboard_device::device_start()
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{
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save_item(NAME(m_clock_state));
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save_item(NAME(m_line1_state));
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save_item(NAME(m_line2_state));
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save_item(NAME(m_scan_counter));
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}
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//-------------------------------------------------
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// line1_w - write from host to control line 1
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//-------------------------------------------------
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WRITE_LINE_MEMBER(itt1700_keyboard_device::line1_w)
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{
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m_line1_state = state;
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}
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//-------------------------------------------------
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// line2_w - write from host to control line 2
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//-------------------------------------------------
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WRITE_LINE_MEMBER(itt1700_keyboard_device::line2_w)
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{
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m_line2_state = state;
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}
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//-------------------------------------------------
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// clock_w - write clock pulse from host
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//-------------------------------------------------
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WRITE_LINE_MEMBER(itt1700_keyboard_device::clock_w)
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{
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if (state && !m_clock)
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{
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// TODO: what happens when both lines are on?
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if (m_line1_state)
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m_scan_counter = 0x7d;
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else if (m_line2_state)
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m_scan_counter = (m_scan_counter + 1) & 0x7f;
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}
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m_clock = state;
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}
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//-------------------------------------------------
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// sense_r - poll return line
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//-------------------------------------------------
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READ_LINE_MEMBER(itt1700_keyboard_device::sense_r)
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{
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return !BIT(m_keys[m_scan_counter >> 3]->read(), m_scan_counter & 7);
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}
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//**************************************************************************
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// KEY INPUT MATRIX
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//**************************************************************************
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static INPUT_PORTS_START(itt1700_kbd)
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PORT_START("KEY0")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY1")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY2")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY3")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY4")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY5")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY6")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY7")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY8")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY9")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY10")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY11")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY12")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY13")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY14")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("KEY15")
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PORT_DIPNAME(0x01, 0x01, DEF_STR(Unknown))
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PORT_DIPSETTING(0x01, DEF_STR(Off))
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PORT_DIPSETTING(0x00, DEF_STR(On))
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PORT_DIPNAME(0x02, 0x02, DEF_STR(Unknown))
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PORT_DIPSETTING(0x02, DEF_STR(Off))
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PORT_DIPSETTING(0x00, DEF_STR(On))
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PORT_DIPNAME(0x04, 0x04, DEF_STR(Unknown))
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PORT_DIPSETTING(0x04, DEF_STR(Off))
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PORT_DIPSETTING(0x00, DEF_STR(On))
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PORT_DIPNAME(0x08, 0x08, DEF_STR(Unknown))
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PORT_DIPSETTING(0x08, DEF_STR(Off))
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PORT_DIPSETTING(0x00, DEF_STR(On))
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PORT_DIPNAME(0x10, 0x10, DEF_STR(Unknown))
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PORT_DIPSETTING(0x10, DEF_STR(Off))
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PORT_DIPSETTING(0x00, DEF_STR(On))
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PORT_DIPNAME(0x20, 0x20, DEF_STR(Unknown))
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PORT_DIPSETTING(0x20, DEF_STR(Off))
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PORT_DIPSETTING(0x00, DEF_STR(On))
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PORT_DIPNAME(0x40, 0x40, DEF_STR(Unknown))
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PORT_DIPSETTING(0x40, DEF_STR(Off))
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PORT_DIPSETTING(0x00, DEF_STR(On))
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PORT_DIPNAME(0x80, 0x80, DEF_STR(Unknown))
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PORT_DIPSETTING(0x80, DEF_STR(Off))
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PORT_DIPSETTING(0x00, DEF_STR(On))
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INPUT_PORTS_END
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//-------------------------------------------------
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// input_ports - device-specific input ports
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//-------------------------------------------------
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ioport_constructor itt1700_keyboard_device::device_input_ports() const
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{
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return INPUT_PORTS_NAME(itt1700_kbd);
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}
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47
src/mame/machine/itt1700_kbd.h
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47
src/mame/machine/itt1700_kbd.h
Normal file
@ -0,0 +1,47 @@
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// license:BSD-3-Clause
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// copyright-holders:AJR
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#ifndef MAME_MACHINE_ITT1700_KBD
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#define MAME_MACHINE_ITT1700_KBD
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#pragma once
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> itt1700_keyboard_device
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class itt1700_keyboard_device : public device_t
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{
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public:
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// device constructor
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itt1700_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
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// host interface
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DECLARE_WRITE_LINE_MEMBER(line1_w);
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DECLARE_WRITE_LINE_MEMBER(line2_w);
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DECLARE_WRITE_LINE_MEMBER(clock_w);
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DECLARE_READ_LINE_MEMBER(sense_r);
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protected:
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// device-specific overrides
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virtual void device_start() override;
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virtual ioport_constructor device_input_ports() const override;
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private:
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// internal state
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bool m_clock_state;
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bool m_line1_state;
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bool m_line2_state;
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u8 m_scan_counter;
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// key input matrix
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required_ioport_array<16> m_keys;
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};
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// device type definition
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DECLARE_DEVICE_TYPE(ITT1700_KEYBOARD, itt1700_keyboard_device)
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#endif // MAME_MACHINE_ITT1700_KBD_H
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