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// license:BSD-3-Clause
// copyright-holders:Curt Coder, hap
/**********************************************************************
Mouse emulation (Commodore 1351 or compatible)
At power-on, holding the right mouse button will put it in joystick mode.
In proportional mode, left button goes to pin #6, right button to pin #1.
POT(X/Y) d1-d6 holds the current direction, d7 unused, d0 is a 'noise bit'.
TODO:
- joystick mode
**********************************************************************/
#include "emu.h"
#include "mouse.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(VCS_MOUSE, vcs_mouse_device, "vcs_mouse", "Atari / CBM Mouse")
static INPUT_PORTS_START( vcs_mouse )
PORT_START("JOY")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_WRITE_LINE_MEMBER(vcs_mouse_device, trigger_w)
PORT_BIT( 0xde, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("POTX")
PORT_BIT( 0x3f, 0x00, IPT_MOUSE_X) PORT_SENSITIVITY(15) PORT_KEYDELTA(10)
PORT_START("POTY")
PORT_BIT( 0x3f, 0x00, IPT_MOUSE_Y) PORT_SENSITIVITY(15) PORT_KEYDELTA(10) PORT_REVERSE
INPUT_PORTS_END
//-------------------------------------------------
// input_ports - device-specific input ports
//-------------------------------------------------
ioport_constructor vcs_mouse_device::device_input_ports() const
{
return INPUT_PORTS_NAME( vcs_mouse );
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// vcs_mouse_device - constructor
//-------------------------------------------------
vcs_mouse_device::vcs_mouse_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, VCS_MOUSE, tag, owner, clock),
device_vcs_control_port_interface(mconfig, *this),
m_joy(*this, "JOY"),
m_potx(*this, "POTX"),
m_poty(*this, "POTY")
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void vcs_mouse_device::device_start()
{
}
//-------------------------------------------------
// vcs_joy_r - joystick read
//-------------------------------------------------
uint8_t vcs_mouse_device::vcs_joy_r()
{
return m_joy->read();
}
//-------------------------------------------------
// vcs_pot_x_r - potentiometer X read
//-------------------------------------------------
uint8_t vcs_mouse_device::vcs_pot_x_r()
{
return m_potx->read() << 1;
}
//-------------------------------------------------
// vcs_pot_y_r - potentiometer Y read
//-------------------------------------------------
uint8_t vcs_mouse_device::vcs_pot_y_r()
{
return m_poty->read() << 1;
}
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