diff options
Diffstat (limited to 'src/devices/bus/a2gameio/wico_joystick.cpp')
-rw-r--r-- | src/devices/bus/a2gameio/wico_joystick.cpp | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/devices/bus/a2gameio/wico_joystick.cpp b/src/devices/bus/a2gameio/wico_joystick.cpp new file mode 100644 index 00000000000..b756b229cb8 --- /dev/null +++ b/src/devices/bus/a2gameio/wico_joystick.cpp @@ -0,0 +1,128 @@ +// license:BSD-3-Clause +// copyright-holders:R. Belmont +/********************************************************************* + + Apple II Wico Command Control Joystick Adapter for Atari-style + digital joysticks + +*********************************************************************/ + +#include "emu.h" +#include "bus/a2gameio/wico_joystick.h" + +namespace { + +// ======================> apple2_wico_joystick_device + +class apple2_wico_joystick_device : public device_t, public device_a2gameio_interface +{ +public: + // construction/destruction + apple2_wico_joystick_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + +protected: + // device_t implementation + virtual ioport_constructor device_input_ports() const override ATTR_COLD; + virtual void device_start() override ATTR_COLD; + + // device_a2gameio_interface implementation + virtual u8 pdl0_r() override; + virtual u8 pdl1_r() override; + virtual u8 pdl2_r() override; + virtual u8 pdl3_r() override; + virtual int sw0_r() override; + virtual int sw1_r() override; + +private: + // input ports + required_ioport m_player1, m_player2; +}; + +//************************************************************************** +// PARAMETERS +//************************************************************************** + +#define JOYSTICK_DELTA 80 +#define JOYSTICK_SENSITIVITY 50 +#define JOYSTICK_AUTOCENTER 80 + +//************************************************************************** +// INPUT PORTS +//************************************************************************** + +static INPUT_PORTS_START( apple2_wico_joystick ) + PORT_START("joystick_p1") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) + + PORT_START("joystick_p2") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(2) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2) + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) +INPUT_PORTS_END + +//************************************************************************** +// DEVICE IMPLEMENTATION +//************************************************************************** + +apple2_wico_joystick_device::apple2_wico_joystick_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : device_t(mconfig, APPLE2_WICO_JOYSTICK, tag, owner, clock) + , device_a2gameio_interface(mconfig, *this) + , m_player1(*this, "joystick_p1") + , m_player2(*this, "joystick_p2") +{ +} + +ioport_constructor apple2_wico_joystick_device::device_input_ports() const +{ + return INPUT_PORTS_NAME(apple2_wico_joystick); +} + +void apple2_wico_joystick_device::device_start() +{ +} + +u8 apple2_wico_joystick_device::pdl0_r() +{ + return !BIT(m_player1->read(), 3) ? 0x00 : !BIT(m_player1->read(), 1) ? 0xff : 0x80; +} + +u8 apple2_wico_joystick_device::pdl1_r() +{ + return !BIT(m_player1->read(), 0) ? 0x00 : !BIT(m_player1->read(), 2) ? 0xff : 0x80; +} + +u8 apple2_wico_joystick_device::pdl2_r() +{ + return !BIT(m_player2->read(), 3) ? 0x00 : !BIT(m_player2->read(), 1) ? 0xff : 0x80; +} + +u8 apple2_wico_joystick_device::pdl3_r() +{ + return !BIT(m_player2->read(), 0) ? 0x00 : !BIT(m_player2->read(), 2) ? 0xff : 0x80; +} + +int apple2_wico_joystick_device::sw0_r() +{ + return !BIT(m_player1->read(), 4); +} + +int apple2_wico_joystick_device::sw1_r() +{ + return !BIT(m_player2->read(), 4); +} + +} // anonymous namespace + + +//************************************************************************** +// GLOBAL VARIABLES +//************************************************************************** + +// device type definition +DEFINE_DEVICE_TYPE_PRIVATE(APPLE2_WICO_JOYSTICK, device_a2gameio_interface, apple2_wico_joystick_device, "a2wicojoy", "Wico Command Control Joystick Adapter") |