// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Atari Video Computer System Keypad emulation **********************************************************************/ #ifndef MAME_BUS_VCS_CTRL_KEYPAD_H #define MAME_BUS_VCS_CTRL_KEYPAD_H #pragma once #include "ctrl.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> vcs_keypad_device class vcs_keypad_device : public device_t, public device_vcs_control_port_interface { public: // construction/destruction vcs_keypad_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock); // device_vcs_control_port_interface overrides virtual uint8_t vcs_joy_r() override { return ~read_keys(2); } virtual uint8_t vcs_pot_x_r() override { return read_keys(0); } virtual uint8_t vcs_pot_y_r() override { return read_keys(1); } virtual void vcs_joy_w(uint8_t data) override; virtual bool has_pot_x() override { return true; } virtual bool has_pot_y() override { return true; } protected: // device-level overrides virtual void device_start() override; // optional information overrides virtual ioport_constructor device_input_ports() const override; private: uint8_t read_keys(uint8_t column); required_ioport m_keypad; uint8_t m_row; }; // device type definition DECLARE_DEVICE_TYPE(VCS_KEYPAD, vcs_keypad_device) #endif // MAME_BUS_VCS_CTRL_KEYPAD_H