diff options
Diffstat (limited to 'src/mess/machine/vcsctrl.c')
-rw-r--r-- | src/mess/machine/vcsctrl.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/mess/machine/vcsctrl.c b/src/mess/machine/vcsctrl.c new file mode 100644 index 00000000000..d64fb07bb61 --- /dev/null +++ b/src/mess/machine/vcsctrl.c @@ -0,0 +1,83 @@ +/********************************************************************** + + Atari Video Computer System controller port emulation + + Copyright MESS Team. + Visit http://mamedev.org for licensing and usage restrictions. + +**********************************************************************/ + +#include "machine/vcsctrl.h" + + + +//************************************************************************** +// GLOBAL VARIABLES +//************************************************************************** + +const device_type VCS_CONTROL_PORT = &device_creator<vcs_control_port_device>; + + + +//************************************************************************** +// CARD INTERFACE +//************************************************************************** + +//------------------------------------------------- +// device_vcs_control_port_interface - constructor +//------------------------------------------------- + +device_vcs_control_port_interface::device_vcs_control_port_interface(const machine_config &mconfig, device_t &device) + : device_slot_card_interface(mconfig,device) +{ + m_port = dynamic_cast<vcs_control_port_device *>(device.owner()); +} + + +//------------------------------------------------- +// ~device_vcs_control_port_interface - destructor +//------------------------------------------------- + +device_vcs_control_port_interface::~device_vcs_control_port_interface() +{ +} + + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// vcs_control_port_device - constructor +//------------------------------------------------- + +vcs_control_port_device::vcs_control_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : + device_t(mconfig, VCS_CONTROL_PORT, "Atari VCS control port", tag, owner, clock), + device_slot_interface(mconfig, *this) +{ +} + + +//------------------------------------------------- +// vcs_control_port_device - destructor +//------------------------------------------------- + +vcs_control_port_device::~vcs_control_port_device() +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void vcs_control_port_device::device_start() +{ + m_device = dynamic_cast<device_vcs_control_port_interface *>(get_card_device()); +} + + +READ8_MEMBER( vcs_control_port_device::joy_r ) { UINT8 data = 0xff; if (m_device != NULL) data = m_device->vcs_joy_r(); return data; } +READ8_MEMBER( vcs_control_port_device::pot_x_r ) { UINT8 data = 0xff; if (m_device != NULL) data = m_device->vcs_pot_x_r(); return data; } +READ8_MEMBER( vcs_control_port_device::pot_y_r ) { UINT8 data = 0xff; if (m_device != NULL) data = m_device->vcs_pot_y_r(); return data; } |