diff options
Diffstat (limited to 'src/devices/bus/bbc/1mhzbus/cfa3000opt.cpp')
-rw-r--r-- | src/devices/bus/bbc/1mhzbus/cfa3000opt.cpp | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/devices/bus/bbc/1mhzbus/cfa3000opt.cpp b/src/devices/bus/bbc/1mhzbus/cfa3000opt.cpp new file mode 100644 index 00000000000..63f2229b27a --- /dev/null +++ b/src/devices/bus/bbc/1mhzbus/cfa3000opt.cpp @@ -0,0 +1,116 @@ +// license:BSD-3-Clause +// copyright-holders:Nigel Barnes +/********************************************************************** + + Henson CFA 3000 Option Board + +**********************************************************************/ + + +#include "emu.h" +#include "cfa3000opt.h" + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +DEFINE_DEVICE_TYPE(CFA3000_OPT, cfa3000_opt_device, "cfa3000opt", "Henson CFA 3000 Option Board") + + +//------------------------------------------------- +// INPUT_PORTS( cfa3000opt ) +//------------------------------------------------- + +static INPUT_PORTS_START( cfa3000opt ) + PORT_START("OPT") + PORT_DIPNAME(0x80, 0x00, "Switch 1") PORT_DIPLOCATION("Option:1") + PORT_DIPSETTING(0x80, "not used") + PORT_DIPSETTING(0x00, "not used") + + PORT_DIPNAME(0x40, 0x00, "Switch 2") PORT_DIPLOCATION("Option:2") + PORT_DIPSETTING(0x40, "not used") + PORT_DIPSETTING(0x00, "not used") + + PORT_DIPNAME(0x20, 0x00, "Switch 3") PORT_DIPLOCATION("Option:3") + PORT_DIPSETTING(0x20, "Auto Send") + PORT_DIPSETTING(0x00, "Request Send") + + PORT_DIPNAME(0x10, 0x00, "Switch 4") PORT_DIPLOCATION("Option:4") + PORT_DIPSETTING(0x10, "repeat >4db") + PORT_DIPSETTING(0x00, "do not repeat >4db") + + PORT_DIPNAME(0x08, 0x00, "Switch 5") PORT_DIPLOCATION("Option:5") + PORT_DIPSETTING(0x08, "est. fluct.") + PORT_DIPSETTING(0x00, "do not est. fluct.") + + PORT_DIPNAME(0x04, 0x00, "Switch 6") PORT_DIPLOCATION("Option:6") + PORT_DIPSETTING(0x04, "Full Threshold") + PORT_DIPSETTING(0x00, "Supra Threshold") + + PORT_DIPNAME(0x02, 0x00, "Switch 7") PORT_DIPLOCATION("Option:7") + PORT_DIPSETTING(0x02, "db") + PORT_DIPSETTING(0x00, "log units") + + PORT_DIPNAME(0x01, 0x00, "Switch 8") PORT_DIPLOCATION("Option:8") + PORT_DIPSETTING(0x01, "2nd level") + PORT_DIPSETTING(0x00, "1st level") +INPUT_PORTS_END + + +//------------------------------------------------- +// input_ports - device-specific input ports +//------------------------------------------------- + +ioport_constructor cfa3000_opt_device::device_input_ports() const +{ + return INPUT_PORTS_NAME( cfa3000opt ); +} + + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// cfa3000_opt_device - constructor +//------------------------------------------------- + +cfa3000_opt_device::cfa3000_opt_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : + device_t(mconfig, CFA3000_OPT, tag, owner, clock), + device_bbc_1mhzbus_interface(mconfig, *this), + m_opt(*this, "OPT") +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void cfa3000_opt_device::device_start() +{ + address_space& space = machine().device("maincpu")->memory().space(AS_PROGRAM); + m_slot = dynamic_cast<bbc_1mhzbus_slot_device *>(owner()); + + space.install_read_handler(0xfcc2, 0xfcc2, read8_delegate(FUNC(cfa3000_opt_device::option_r), this)); +} + + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void cfa3000_opt_device::device_reset() +{ +} + +//************************************************************************** +// IMPLEMENTATION +//************************************************************************** + +READ8_MEMBER(cfa3000_opt_device::option_r) +{ + return m_opt->read(); +} |