// license:BSD-3-Clause // copyright-holders:Fabio Priuli /********************************************************************** Sega Saturn MD Joypad (3 buttons & 6 buttons) emulation **********************************************************************/ #include "emu.h" #include "joy_md.h" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** DEFINE_DEVICE_TYPE(SATURN_JOYMD3B, saturn_joymd3b_device, "saturn_md3b", "Sega Saturn Joypad MD 3buttons") DEFINE_DEVICE_TYPE(SATURN_JOYMD6B, saturn_joymd6b_device, "saturn_md6b", "Sega Saturn Joypad MD 6buttons") static INPUT_PORTS_START( saturn_md3b ) PORT_START("JOY") PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_START ) PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME("A") PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_NAME("C") PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_NAME("B") PORT_BIT( 0x00ff, IP_ACTIVE_LOW, IPT_UNUSED ) //reads '1' when direct mode is polled INPUT_PORTS_END static INPUT_PORTS_START( saturn_md6b ) PORT_START("JOY") PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_START ) PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME("A") PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_NAME("C") PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_NAME("B") PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_BUTTON8 ) PORT_NAME("Mode") PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_NAME("X") PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_NAME("Y") PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_NAME("Z") PORT_BIT( 0x000f, IP_ACTIVE_LOW, IPT_UNUSED ) //reads '1' when direct mode is polled INPUT_PORTS_END //------------------------------------------------- // input_ports - device-specific input ports //------------------------------------------------- ioport_constructor saturn_joymd3b_device::device_input_ports() const { return INPUT_PORTS_NAME( saturn_md3b ); } ioport_constructor saturn_joymd6b_device::device_input_ports() const { return INPUT_PORTS_NAME( saturn_md6b ); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // constructors //------------------------------------------------- saturn_joymd3b_device::saturn_joymd3b_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, SATURN_JOYMD3B, tag, owner, clock), device_saturn_control_port_interface(mconfig, *this), m_joy(*this, "JOY") { m_ctrl_id = 0xe1; } saturn_joymd6b_device::saturn_joymd6b_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, SATURN_JOYMD6B, tag, owner, clock), device_saturn_control_port_interface(mconfig, *this), m_joy(*this, "JOY") { m_ctrl_id = 0xe2; } //------------------------------------------------- // read_ctrl //------------------------------------------------- uint8_t saturn_joymd3b_device::read_ctrl(uint8_t offset) { uint8_t res = 0; switch (offset) { case 0: default: res = m_joy->read() >> 8; break; } return res; } uint8_t saturn_joymd6b_device::read_ctrl(uint8_t offset) { uint8_t res = 0; switch (offset) { case 0: default: res = m_joy->read() >> 8; break; case 1: res = m_joy->read() & 0xff; break; } return res; }