diff options
Diffstat (limited to 'src/devices/bus/vcs_ctrl/lightpen.c')
-rw-r--r-- | src/devices/bus/vcs_ctrl/lightpen.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/devices/bus/vcs_ctrl/lightpen.c b/src/devices/bus/vcs_ctrl/lightpen.c new file mode 100644 index 00000000000..8531930b2a1 --- /dev/null +++ b/src/devices/bus/vcs_ctrl/lightpen.c @@ -0,0 +1,85 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + Atari Video Computer System lightpen emulation + +**********************************************************************/ + +#include "lightpen.h" + + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +const device_type VCS_LIGHTPEN = &device_creator<vcs_lightpen_device>; + + +INPUT_CHANGED_MEMBER( vcs_lightpen_device::trigger ) +{ + // TODO trigger timer at correct screen position + m_port->trigger_w(newval); +} + + +static INPUT_PORTS_START( vcs_lightpen ) + PORT_START("JOY") + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_CHANGED_MEMBER(DEVICE_SELF, vcs_lightpen_device, trigger, 0) + PORT_BIT( 0xdf, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START("LIGHTX") + PORT_BIT( 0xff, 0x00, IPT_LIGHTGUN_X) PORT_CROSSHAIR(X, 1.0, 0.0, 0) PORT_SENSITIVITY(45) PORT_KEYDELTA(15) + + PORT_START("LIGHTY") + PORT_BIT( 0xff, 0x00, IPT_LIGHTGUN_Y) PORT_CROSSHAIR(Y, 1.0, 0.0, 0) PORT_SENSITIVITY(45) PORT_KEYDELTA(15) +INPUT_PORTS_END + + +//------------------------------------------------- +// input_ports - device-specific input ports +//------------------------------------------------- + +ioport_constructor vcs_lightpen_device::device_input_ports() const +{ + return INPUT_PORTS_NAME( vcs_lightpen ); +} + + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// vcs_lightpen_device - constructor +//------------------------------------------------- + +vcs_lightpen_device::vcs_lightpen_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : + device_t(mconfig, VCS_LIGHTPEN, "Atari / CBM Light Pen", tag, owner, clock, "vcs_lightpen", __FILE__), + device_vcs_control_port_interface(mconfig, *this), + m_joy(*this, "JOY"), + m_lightx(*this, "LIGHTX"), + m_lighty(*this, "LIGHTY") +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void vcs_lightpen_device::device_start() +{ +} + + +//------------------------------------------------- +// vcs_joy_r - lightpen read +//------------------------------------------------- + +UINT8 vcs_lightpen_device::vcs_joy_r() +{ + return m_joy->read(); +} |