diff options
Diffstat (limited to 'src/emu/bus/sms_ctrl/joypad.c')
-rw-r--r-- | src/emu/bus/sms_ctrl/joypad.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/emu/bus/sms_ctrl/joypad.c b/src/emu/bus/sms_ctrl/joypad.c new file mode 100644 index 00000000000..578fd2054ae --- /dev/null +++ b/src/emu/bus/sms_ctrl/joypad.c @@ -0,0 +1,77 @@ +/********************************************************************** + + Sega Master System "Control Pad"/generic joystick emulation + + Copyright MESS Team. + Visit http://mamedev.org for licensing and usage restrictions. + +**********************************************************************/ + +#include "joypad.h" + + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +const device_type SMS_JOYPAD = &device_creator<sms_joypad_device>; + + +static INPUT_PORTS_START( sms_joypad ) + PORT_START("JOYPAD") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) // Vcc + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) // TL + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) // TH + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON2 ) // TR +INPUT_PORTS_END + + +//------------------------------------------------- +// input_ports - device-specific input ports +//------------------------------------------------- + +ioport_constructor sms_joypad_device::device_input_ports() const +{ + return INPUT_PORTS_NAME( sms_joypad ); +} + + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// sms_joypad_device - constructor +//------------------------------------------------- + +sms_joypad_device::sms_joypad_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : + device_t(mconfig, SMS_JOYPAD, "Control Pad", tag, owner, clock, "sms_joypad", __FILE__), + device_sms_control_port_interface(mconfig, *this), + m_joypad(*this, "JOYPAD") +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void sms_joypad_device::device_start() +{ +} + + +//------------------------------------------------- +// sms_peripheral_r - joypad read +//------------------------------------------------- + +UINT8 sms_joypad_device::peripheral_r() +{ + return m_joypad->read(); +} |