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Diffstat (limited to 'src/devices/bus/spectrum/fuller.cpp')
-rw-r--r-- | src/devices/bus/spectrum/fuller.cpp | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/src/devices/bus/spectrum/fuller.cpp b/src/devices/bus/spectrum/fuller.cpp new file mode 100644 index 00000000000..d2c9bb6ff21 --- /dev/null +++ b/src/devices/bus/spectrum/fuller.cpp @@ -0,0 +1,132 @@ +// license:BSD-3-Clause +// copyright-holders:Nigel Barnes +/********************************************************************** + + Fuller Box Games Unit + +**********************************************************************/ + +#include "emu.h" +#include "fuller.h" +#include "speaker.h" + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +DEFINE_DEVICE_TYPE(SPECTRUM_FULLER, spectrum_fuller_device, "spectrum_fuller", "Fuller Box") + + +//------------------------------------------------- +// INPUT_PORTS( fuller ) +//------------------------------------------------- + +static INPUT_PORTS_START( fuller ) + PORT_START("JOY") + 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(0x80, IP_ACTIVE_LOW, IPT_BUTTON1) +INPUT_PORTS_END + + +//------------------------------------------------- +// input_ports - device-specific input ports +//------------------------------------------------- + +ioport_constructor spectrum_fuller_device::device_input_ports() const +{ + return INPUT_PORTS_NAME( fuller ); +} + +//------------------------------------------------- +// device_add_mconfig - add device configuration +//------------------------------------------------- + +MACHINE_CONFIG_MEMBER(spectrum_fuller_device::device_add_mconfig) + /* sound hardware */ + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_ADD("ay8912", AY8912, XTAL_3_579545MHz / 2) // unverified clock + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) + + /* passthru */ + MCFG_SPECTRUM_PASSTHRU_EXPANSION_SLOT_ADD() +MACHINE_CONFIG_END + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// spectrum_fuller_device - constructor +//------------------------------------------------- + +spectrum_fuller_device::spectrum_fuller_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) + : device_t(mconfig, SPECTRUM_FULLER, tag, owner, clock) + , device_spectrum_expansion_interface(mconfig, *this) + , m_exp(*this, "exp") + , m_psg(*this, "ay8912") + , m_joy(*this, "JOY") +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void spectrum_fuller_device::device_start() +{ + address_space& spaceio = machine().device("maincpu")->memory().space(AS_IO); + m_slot = dynamic_cast<spectrum_expansion_slot_device *>(owner()); + + spaceio.install_write_handler(0x3f, 0x3f, 0, 0xff00, 0, write8_delegate(FUNC(ay8910_device::address_w), (ay8910_device*)m_psg)); + spaceio.install_readwrite_handler(0x5f, 0x5f, 0, 0xff00, 0, read8_delegate(FUNC(ay8910_device::data_r), (ay8910_device*)m_psg), write8_delegate(FUNC(ay8910_device::data_w), (ay8910_device*)m_psg)); + spaceio.install_read_handler(0x7f, 0x7f, 0, 0xff00, 0, read8_delegate(FUNC(spectrum_fuller_device::joystick_r), this)); +} + + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void spectrum_fuller_device::device_reset() +{ +} + + +//************************************************************************** +// IMPLEMENTATION +//************************************************************************** + +READ8_MEMBER(spectrum_fuller_device::joystick_r) +{ + return m_joy->read() | (0xff ^ 0x8f); +} + +READ_LINE_MEMBER(spectrum_fuller_device::romcs) +{ + return m_exp->romcs(); +} + +READ8_MEMBER(spectrum_fuller_device::mreq_r) +{ + return m_exp->mreq_r(space, offset); +} + +WRITE8_MEMBER(spectrum_fuller_device::mreq_w) +{ + if (m_exp->romcs()) + m_exp->mreq_w(space, offset, data); +} + +READ8_MEMBER(spectrum_fuller_device::port_fe_r) +{ + uint8_t data = 0xff; + + if (m_exp->romcs()) + data &= m_exp->port_fe_r(space, offset); + + return data; +}
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