diff options
Diffstat (limited to 'src/devices/bus/acorn/cms/ieee.cpp')
-rw-r--r-- | src/devices/bus/acorn/cms/ieee.cpp | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/devices/bus/acorn/cms/ieee.cpp b/src/devices/bus/acorn/cms/ieee.cpp new file mode 100644 index 00000000000..001424aeb41 --- /dev/null +++ b/src/devices/bus/acorn/cms/ieee.cpp @@ -0,0 +1,89 @@ +// license:BSD-3-Clause +// copyright-holders:Nigel Barnes +/********************************************************************** + + CMS IEEE Controller Board + +**********************************************************************/ + + +#include "emu.h" +#include "ieee.h" + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +DEFINE_DEVICE_TYPE(CMS_IEEE, cms_ieee_device, "cms_ieee", "CMS IEEE Controller Board"); + + +//------------------------------------------------- +// device_add_mconfig - add device configuration +//------------------------------------------------- + +void cms_ieee_device::device_add_mconfig(machine_config &config) +{ + TMS9914(config, m_tms9914, 4_MHz_XTAL); // TODO: verify clock + m_tms9914->int_write_cb().set(FUNC(cms_ieee_device::bus_irq_w)); + m_tms9914->dio_read_cb().set(IEEE488_TAG, FUNC(ieee488_device::dio_r)); + m_tms9914->dio_write_cb().set(IEEE488_TAG, FUNC(ieee488_device::host_dio_w)); + m_tms9914->eoi_write_cb().set(IEEE488_TAG, FUNC(ieee488_device::host_eoi_w)); + m_tms9914->dav_write_cb().set(IEEE488_TAG, FUNC(ieee488_device::host_dav_w)); + m_tms9914->nrfd_write_cb().set(IEEE488_TAG, FUNC(ieee488_device::host_nrfd_w)); + m_tms9914->ndac_write_cb().set(IEEE488_TAG, FUNC(ieee488_device::host_ndac_w)); + m_tms9914->ifc_write_cb().set(IEEE488_TAG, FUNC(ieee488_device::host_ifc_w)); + m_tms9914->srq_write_cb().set(IEEE488_TAG, FUNC(ieee488_device::host_srq_w)); + m_tms9914->atn_write_cb().set(IEEE488_TAG, FUNC(ieee488_device::host_atn_w)); + m_tms9914->ren_write_cb().set(IEEE488_TAG, FUNC(ieee488_device::host_ren_w)); + + IEEE488(config, m_ieee); + m_ieee->eoi_callback().set(m_tms9914, FUNC(tms9914_device::eoi_w)); + m_ieee->dav_callback().set(m_tms9914, FUNC(tms9914_device::dav_w)); + m_ieee->nrfd_callback().set(m_tms9914, FUNC(tms9914_device::nrfd_w)); + m_ieee->ndac_callback().set(m_tms9914, FUNC(tms9914_device::ndac_w)); + m_ieee->ifc_callback().set(m_tms9914, FUNC(tms9914_device::ifc_w)); + m_ieee->srq_callback().set(m_tms9914, FUNC(tms9914_device::srq_w)); + m_ieee->atn_callback().set(m_tms9914, FUNC(tms9914_device::atn_w)); + m_ieee->ren_callback().set(m_tms9914, FUNC(tms9914_device::ren_w)); + IEEE488_SLOT(config, "ieee_dev", 0, cbm_ieee488_devices, nullptr); +} + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// cms_ieee_device - constructor +//------------------------------------------------- + +cms_ieee_device::cms_ieee_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) + : device_t(mconfig, CMS_IEEE, tag, owner, clock) + , device_acorn_bus_interface(mconfig, *this) + , m_ieee(*this, IEEE488_TAG) + , m_tms9914(*this, "hpib") +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void cms_ieee_device::device_start() +{ + address_space &space = m_bus->memspace(); + + space.install_readwrite_handler(0xfc60, 0xfc6f, read8sm_delegate(*m_tms9914, FUNC(tms9914_device::read)), write8sm_delegate(*m_tms9914, FUNC(tms9914_device::write))); +} + + +//************************************************************************** +// IMPLEMENTATION +//************************************************************************** + +void cms_ieee_device::bus_irq_w(int state) +{ + m_bus->irq_w(state); +} |