From 8306e7a0efa44e3f2ae7e7501ffc51e56b9d5d20 Mon Sep 17 00:00:00 2001 From: AJR Date: Tue, 12 Nov 2019 22:17:28 -0500 Subject: Add dump and skeleton device for Sony SMO-C501 MO Disk Controller [Don Maslin Vintage Computer Archive] --- src/devices/bus/nscsi/devices.cpp | 2 + src/devices/bus/nscsi/smoc501.cpp | 91 +++++++++++++++++++++++++++++++++++++++ src/devices/bus/nscsi/smoc501.h | 30 +++++++++++++ 3 files changed, 123 insertions(+) create mode 100644 src/devices/bus/nscsi/smoc501.cpp create mode 100644 src/devices/bus/nscsi/smoc501.h (limited to 'src/devices') diff --git a/src/devices/bus/nscsi/devices.cpp b/src/devices/bus/nscsi/devices.cpp index c8f45a0d84a..b4ed8530db4 100644 --- a/src/devices/bus/nscsi/devices.cpp +++ b/src/devices/bus/nscsi/devices.cpp @@ -9,6 +9,7 @@ #include "bus/nscsi/cw7501.h" #include "bus/nscsi/hd.h" #include "bus/nscsi/s1410.h" +#include "bus/nscsi/smoc501.h" void default_scsi_devices(device_slot_interface &device) { @@ -19,4 +20,5 @@ void default_scsi_devices(device_slot_interface &device) device.option_add("cdr4210", CDR4210); device.option_add("cdrn820s", CDRN820S); device.option_add("cdd2000", CDD2000); + device.option_add("smoc501", SMOC501); }; diff --git a/src/devices/bus/nscsi/smoc501.cpp b/src/devices/bus/nscsi/smoc501.cpp new file mode 100644 index 00000000000..48ede8a888c --- /dev/null +++ b/src/devices/bus/nscsi/smoc501.cpp @@ -0,0 +1,91 @@ +// license:BSD-3-Clause +// copyright-holders:AJR +/********************************************************************** + + Sony SMO-C501 Magneto Optical Disk Controller + + This is the SCSI/M-ESDI bridge controller for the SMO-D501 and + SMO-E501 MO disk drives. + + The PCB features some ASICs by ADSI. + +**********************************************************************/ + +#include "emu.h" +#include "smoc501.h" + +#include "cpu/nec/v5x.h" +#include "machine/wd33c9x.h" + +DEFINE_DEVICE_TYPE(SMOC501, smoc501_device, "smoc501", "Sony SMO-C501 MO Disk Controller") + +smoc501_device::smoc501_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : device_t(mconfig, SMOC501, tag, owner, clock) + , nscsi_slot_card_interface(mconfig, *this, "scsic") +{ +} + +void smoc501_device::device_start() +{ +} + + +void smoc501_device::mem_map(address_map &map) +{ + map(0x00000, 0x07fff).ram(); + map(0x0a000, 0x0a01f).rw("scsic", FUNC(wd33c93_device::dir_r), FUNC(wd33c93_device::dir_w)); + map(0xf0000, 0xfffff).rom().region("microcode", 0); +} + + +static INPUT_PORTS_START(smoc501) + PORT_START("DSW") + PORT_DIPNAME(0x80, 0x80, "Loading Control") PORT_DIPLOCATION("DSW:1") + PORT_DIPSETTING(0x80, DEF_STR(Off)) + PORT_DIPSETTING(0x00, DEF_STR(On)) + PORT_DIPNAME(0x40, 0x40, "Eject Mode") PORT_DIPLOCATION("DSW:2") + PORT_DIPSETTING(0x40, "Eject Button") + PORT_DIPSETTING(0x00, "Controller") + PORT_DIPNAME(0x20, 0x20, "Temporary Mode") PORT_DIPLOCATION("DSW:3") + PORT_DIPSETTING(0x00, "512 Bytes/Sector") + PORT_DIPSETTING(0x20, "1024 Bytes/Sector") + PORT_DIPNAME(0x10, 0x00, "Terminator") PORT_DIPLOCATION("DSW:4") + PORT_DIPSETTING(0x10, DEF_STR(Off)) + PORT_DIPSETTING(0x00, "On (Last Drive)") + PORT_DIPNAME(0x08, 0x00, "Auto Spin Up") PORT_DIPLOCATION("DSW:5") + PORT_DIPSETTING(0x08, "By Drive Unit") + PORT_DIPSETTING(0x00, "By Controller") + PORT_DIPNAME(0x07, 0x06, "Drive Number") PORT_DIPLOCATION("DSW:8,7,6") + PORT_DIPSETTING(0x07, "0") + PORT_DIPSETTING(0x06, "1") + PORT_DIPSETTING(0x05, "2") + PORT_DIPSETTING(0x04, "3") + PORT_DIPSETTING(0x03, "4") + PORT_DIPSETTING(0x02, "5") + PORT_DIPSETTING(0x01, "6") + PORT_DIPSETTING(0x00, "7") +INPUT_PORTS_END + +ioport_constructor smoc501_device::device_input_ports() const +{ + return INPUT_PORTS_NAME(smoc501); +} + +void smoc501_device::device_add_mconfig(machine_config &config) +{ + v40_device &mpu(V40(config, "mpu", 16'000'000)); // clock is guessed + mpu.set_addrmap(AS_PROGRAM, &smoc501_device::mem_map); + + wd33c93_device &scsic(WD33C93(config, "scsic", 10'000'000)); // clock is guessed + scsic.irq_cb().set_inputline("mpu", INPUT_LINE_IRQ5); +} + +ROM_START(smoc501) + ROM_REGION(0x10000, "microcode", 0) + ROM_LOAD("c501-00.rom", 0x00000, 0x10000, CRC(0ae04500) SHA1(96c73a3a2ecdc8c903e920f2afba5b4edd5cdba6)) +ROM_END + +const tiny_rom_entry *smoc501_device::device_rom_region() const +{ + return ROM_NAME(smoc501); +} diff --git a/src/devices/bus/nscsi/smoc501.h b/src/devices/bus/nscsi/smoc501.h new file mode 100644 index 00000000000..c4ecb6ad00c --- /dev/null +++ b/src/devices/bus/nscsi/smoc501.h @@ -0,0 +1,30 @@ +// license:BSD-3-Clause +// copyright-holders:AJR + +#ifndef MAME_BUS_NSCSI_SMOC501_H +#define MAME_BUS_NSCSI_SMOC501_H + +#pragma once + +#include "machine/nscsi_bus.h" + +class smoc501_device : public device_t, public nscsi_slot_card_interface +{ +public: + smoc501_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + + static constexpr feature_type unemulated_features() { return feature::DISK; } + +protected: + virtual void device_start() override; + virtual ioport_constructor device_input_ports() const override; + virtual void device_add_mconfig(machine_config &config) override; + virtual const tiny_rom_entry *device_rom_region() const override; + +private: + void mem_map(address_map &map); +}; + +DECLARE_DEVICE_TYPE(SMOC501, smoc501_device) + +#endif // MAME_BUS_NSCSI_CDD2000_H -- cgit v1.2.3