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Diffstat (limited to 'src/devices/bus/sbus/hme.cpp')
-rw-r--r-- | src/devices/bus/sbus/hme.cpp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/devices/bus/sbus/hme.cpp b/src/devices/bus/sbus/hme.cpp new file mode 100644 index 00000000000..49d6f4e3988 --- /dev/null +++ b/src/devices/bus/sbus/hme.cpp @@ -0,0 +1,71 @@ +// license:BSD-3-Clause +// copyright-holders:Ryan Holtz +/*************************************************************************** + + Sun SunSwift 10/100 + Fast Wide SCSI "Colossus" skeleton + + Notable parts on board: + - 1x 32-pin PLCC ROM, label 525 / 1409 / -08 on separate lines + - 1x Sun STP2002QFP, marked 100-4156-05 / 609-0392458 / DP03972 + - 1x National Semiconductor DP83840AVCE-1 Ethernet Physical Layer + - 1x National Semiconductor DP83223V Twisted Pair Transceiver + +***************************************************************************/ + +#include "emu.h" +#include "hme.h" + +DEFINE_DEVICE_TYPE(SBUS_HME, sbus_hme_device, "sbus_hme", "Sun 10/100 + Fast Wide SCSI") + +void sbus_hme_device::mem_map(address_map &map) +{ + map(0x00000000, 0x01ffffff).rw(FUNC(sbus_hme_device::unknown_r), FUNC(sbus_hme_device::unknown_w)); + map(0x00000000, 0x0000ffff).r(FUNC(sbus_hme_device::rom_r)); +} + +ROM_START( sbus_hme ) + ROM_REGION32_BE(0x10000, "prom", ROMREGION_ERASEFF) + ROM_LOAD( "525 1409 -08.bin", 0x00000, 0x10000, CRC(10f0b28f) SHA1(b54bb0f01c45accdbc58c3a86f8de34949374880)) +ROM_END + +const tiny_rom_entry *sbus_hme_device::device_rom_region() const +{ + return ROM_NAME( sbus_hme ); +} + +void sbus_hme_device::device_add_mconfig(machine_config &config) +{ +} + + +sbus_hme_device::sbus_hme_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) + : device_t(mconfig, SBUS_HME, tag, owner, clock) + , device_sbus_card_interface(mconfig, *this) + , m_rom(*this, "prom") +{ +} + +void sbus_hme_device::device_start() +{ +} + +void sbus_hme_device::install_device() +{ + m_sbus->install_device(m_base, m_base + 0x1ffffff, *this, &sbus_hme_device::mem_map); +} + +READ32_MEMBER(sbus_hme_device::unknown_r) +{ + logerror("%s: unknown_r: %08x & %08x\n", machine().describe_context(), offset << 2, mem_mask); + return 0; +} + +WRITE32_MEMBER(sbus_hme_device::unknown_w) +{ + logerror("%s: unknown_w: %08x = %08x & %08x\n", machine().describe_context(), offset << 2, data, mem_mask); +} + +READ32_MEMBER(sbus_hme_device::rom_r) +{ + return ((uint32_t*)m_rom->base())[offset]; +} |