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a800: Add Atari CX85 Numeric Keypad to controller port options

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This commit is contained in:
AJR 2024-03-03 17:52:04 -05:00
parent 9db9cc0300
commit b53e5439f0
4 changed files with 187 additions and 0 deletions
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2
scripts/src/bus.lua
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@ -2574,6 +2574,8 @@ if (BUSES["VCS_CTRL"]~=null) then
files {
MAME_DIR .. "src/devices/bus/vcs_ctrl/ctrl.cpp",
MAME_DIR .. "src/devices/bus/vcs_ctrl/ctrl.h",
MAME_DIR .. "src/devices/bus/vcs_ctrl/cx85.cpp",
MAME_DIR .. "src/devices/bus/vcs_ctrl/cx85.h",
MAME_DIR .. "src/devices/bus/vcs_ctrl/joystick.cpp",
MAME_DIR .. "src/devices/bus/vcs_ctrl/joystick.h",
MAME_DIR .. "src/devices/bus/vcs_ctrl/joybooster.cpp",

3
src/devices/bus/vcs_ctrl/ctrl.cpp
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@ -65,6 +65,7 @@ void vcs_control_port_device::device_start()
// SLOT_INTERFACE( vcs_control_port_devices )
//-------------------------------------------------
#include "cx85.h"
#include "joybooster.h"
#include "joystick.h"
#include "keypad.h"
@ -88,4 +89,6 @@ void a800_control_port_devices(device_slot_interface &device)
{
vcs_control_port_devices(device);
device.set_option_machine_config("pad", &vcs_paddles_device::reverse_players);
device.option_add("cx85", ATARI_CX85);
}

128
src/devices/bus/vcs_ctrl/cx85.cpp Normal file
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@ -0,0 +1,128 @@
// license:BSD-3-Clause
// copyright-holders:AJR
/**********************************************************************
Atari CX85 Numeric Keypad
**********************************************************************/
#include "emu.h"
#include "cx85.h"
#include "machine/rescap.h"
//**************************************************************************
// DEVICE TYPE DEFINITION
//**************************************************************************
DEFINE_DEVICE_TYPE(ATARI_CX85, atari_cx85_device, "atari_cx85", "Atari CX85 Numeric Keypad")
//**************************************************************************
// INPUT PORTS
//**************************************************************************
static INPUT_PORTS_START(atari_cx85)
PORT_START("X1")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad -") PORT_CODE(KEYCODE_PLUS_PAD)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad 3") PORT_CODE(KEYCODE_3_PAD)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad 9") PORT_CODE(KEYCODE_9_PAD)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad 6") PORT_CODE(KEYCODE_6_PAD)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("X2")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad + Enter") PORT_CODE(KEYCODE_ENTER_PAD)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad 2") PORT_CODE(KEYCODE_2_PAD)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad 8") PORT_CODE(KEYCODE_8_PAD)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad 5") PORT_CODE(KEYCODE_5_PAD)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("X3")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad .") PORT_CODE(KEYCODE_DEL_PAD)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad 1") PORT_CODE(KEYCODE_1_PAD)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad 7") PORT_CODE(KEYCODE_7_PAD)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad 4") PORT_CODE(KEYCODE_4_PAD)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("X4")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad 0") PORT_CODE(KEYCODE_0_PAD)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad F2 (Yes)") PORT_CODE(KEYCODE_SLASH_PAD)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad F4 (No)") PORT_CODE(KEYCODE_MINUS_PAD)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad F3 (Del)") PORT_CODE(KEYCODE_ASTERISK)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Keypad F1 (Escape)") PORT_CODE(KEYCODE_NUMLOCK)
INPUT_PORTS_END
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// atari_cx85_device - constructor
//-------------------------------------------------
atari_cx85_device::atari_cx85_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, ATARI_CX85, tag, owner, clock)
, device_vcs_control_port_interface(mconfig, *this)
, m_encoder(*this, "encoder")
{
}
//-------------------------------------------------
// device_add_mconfig - add device configuration
//-------------------------------------------------
void atari_cx85_device::device_add_mconfig(machine_config &config)
{
MM74C923(config, m_encoder, 0); // MCM74C923N
m_encoder->set_cap_osc(CAP_U(.1));
m_encoder->set_cap_debounce(CAP_U(.47));
m_encoder->data_tri_callback().set_constant(0);
m_encoder->x1_rd_callback().set_ioport("X1");
m_encoder->x2_rd_callback().set_ioport("X2");
m_encoder->x3_rd_callback().set_ioport("X3");
m_encoder->x4_rd_callback().set_ioport("X4");
m_encoder->da_wr_callback().set(FUNC(atari_cx85_device::trigger_w)).invert();
}
//-------------------------------------------------
// device_input_ports - device-specific input ports
//-------------------------------------------------
ioport_constructor atari_cx85_device::device_input_ports() const
{
return INPUT_PORTS_NAME(atari_cx85);
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void atari_cx85_device::device_start()
{
}
//-------------------------------------------------
// vcs_joy_r - read digital inputs
//-------------------------------------------------
u8 atari_cx85_device::vcs_joy_r()
{
// 74C923 outputs are buffered through 4049B
if (m_encoder->da_r())
{
u8 inputs = m_encoder->read();
logerror("Inputs read: %d%d%d%d%d\n", BIT(inputs, 4), BIT(inputs, 3), BIT(inputs, 2), BIT(inputs, 1), BIT(inputs, 0));
}
return (~m_encoder->read() & 0x0f) | (m_encoder->da_r() ? 0 : 0x20);
}
//-------------------------------------------------
// vcs_pot_x_r - sample B pot
//-------------------------------------------------
u8 atari_cx85_device::vcs_pot_x_r()
{
return BIT(m_encoder->read(), 4) ? 0 : 0xff;
}

54
src/devices/bus/vcs_ctrl/cx85.h Normal file
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@ -0,0 +1,54 @@
// license:BSD-3-Clause
// copyright-holders:AJR
/**********************************************************************
Atari CX85 Numeric Keypad
**********************************************************************/
#ifndef MAME_BUS_VCS_CTRL_CX85_H
#define MAME_BUS_VCS_CTRL_CX85_H
#pragma once
#include "ctrl.h"
#include "machine/mm74c922.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> atari_cx85_device
class atari_cx85_device : public device_t,
public device_vcs_control_port_interface
{
public:
// construction/destruction
atari_cx85_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_add_mconfig(machine_config &config) override;
// optional information overrides
virtual ioport_constructor device_input_ports() const override;
// device_vcs_control_port_interface overrides
virtual u8 vcs_joy_r() override;
virtual u8 vcs_pot_x_r() override;
virtual bool has_pot_x() override { return true; }
virtual bool has_pot_y() override { return false; } // pin 9 not used
private:
required_device<mm74c923_device> m_encoder;
};
// device type declaration
DECLARE_DEVICE_TYPE(ATARI_CX85, atari_cx85_device)
#endif // MAME_BUS_VCS_CTRL_CX85_H