From 2d6f756d70a2321b0b6ebe6518d1d721d54103ca Mon Sep 17 00:00:00 2001 From: AJR Date: Thu, 21 Sep 2023 22:44:07 -0400 Subject: Add dump of Iomega Zip 100MB IDE drive [Guru] --- scripts/src/bus.lua | 2 + src/devices/bus/ata/atadev.cpp | 2 + src/devices/bus/ata/zip100.cpp | 100 +++++++++++++++++++++++++++++++++++++++++ src/devices/bus/ata/zip100.h | 41 +++++++++++++++++ 4 files changed, 145 insertions(+) create mode 100644 src/devices/bus/ata/zip100.cpp create mode 100644 src/devices/bus/ata/zip100.h diff --git a/scripts/src/bus.lua b/scripts/src/bus.lua index 99a682f5e8f..0d0dc7f09d0 100644 --- a/scripts/src/bus.lua +++ b/scripts/src/bus.lua @@ -512,6 +512,8 @@ if (BUSES["ATA"]~=null) then MAME_DIR .. "src/devices/bus/ata/gdrom.h", MAME_DIR .. "src/devices/bus/ata/px320a.cpp", MAME_DIR .. "src/devices/bus/ata/px320a.h", + MAME_DIR .. "src/devices/bus/ata/zip100.cpp", + MAME_DIR .. "src/devices/bus/ata/zip100.h", } end diff --git a/src/devices/bus/ata/atadev.cpp b/src/devices/bus/ata/atadev.cpp index 5f2b317bddb..5312e9edb02 100644 --- a/src/devices/bus/ata/atadev.cpp +++ b/src/devices/bus/ata/atadev.cpp @@ -13,6 +13,7 @@ #include "cp2024.h" #include "hdd.h" #include "px320a.h" +#include "zip100.h" //------------------------------------------------- // device_ata_interface - constructor @@ -74,4 +75,5 @@ void ata_devices(device_slot_interface &device) device.option_add("px320a", PX320A); device.option_add("cf", ATA_CF); device.option_add("cp2024", CP2024); + device.option_add("zip100", ZIP100_IDE); } diff --git a/src/devices/bus/ata/zip100.cpp b/src/devices/bus/ata/zip100.cpp new file mode 100644 index 00000000000..53a12eeda1b --- /dev/null +++ b/src/devices/bus/ata/zip100.cpp @@ -0,0 +1,100 @@ +// license:BSD-3-Clause +// copyright-holders:AJR +/******************************************************************************* + + Skeleton device for Iomega Zip 100MB IDE drive. + + Main IC is a 100-pin QFP system-on-a-chip bearing the manufacturer logo. + The SoC seems to be named "Rucify", which appears both on its silkscreened + label and in its firmware EPROM. + +*******************************************************************************/ + +#include "emu.h" +#include "zip100.h" +#include "cpu/mcs51/mcs51.h" + +DEFINE_DEVICE_TYPE(ZIP100_IDE, zip100_ide_device, "zip100_ide", "Iomega Zip 100MB IDE Drive") + +zip100_ide_device::zip100_ide_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : device_t(mconfig, ZIP100_IDE, tag, owner, clock) + , device_ata_interface(mconfig, *this) +{ +} + +void zip100_ide_device::device_start() +{ +} + + +u16 zip100_ide_device::read_dma() +{ + return 0; +} + +u16 zip100_ide_device::read_cs0(offs_t offset, u16 mem_mask) +{ + return 0; +} + +u16 zip100_ide_device::read_cs1(offs_t offset, u16 mem_mask) +{ + return 0; +} + +void zip100_ide_device::write_dma(u16 data) +{ +} + +void zip100_ide_device::write_cs0(offs_t offset, u16 data, u16 mem_mask) +{ +} + +void zip100_ide_device::write_cs1(offs_t offset, u16 data, u16 mem_mask) +{ +} + +void zip100_ide_device::write_dmack(int state) +{ +} + +void zip100_ide_device::write_csel(int state) +{ +} + +void zip100_ide_device::write_dasp(int state) +{ +} + +void zip100_ide_device::write_pdiag(int state) +{ +} + + +void zip100_ide_device::mem_map(address_map &map) +{ + map(0x0000, 0xffff).rom().region("eprom", 0); +} + +void zip100_ide_device::ext_map(address_map &map) +{ + // TODO +} + +void zip100_ide_device::device_add_mconfig(machine_config &config) +{ + i80c32_device &mcu(I80C32(config, "mcu", 12'000'000)); // custom SoC; clock unknown + mcu.set_addrmap(AS_PROGRAM, &zip100_ide_device::mem_map); + mcu.set_addrmap(AS_IO, &zip100_ide_device::ext_map); +} + +ROM_START(zip100_ide) + ROM_REGION(0x10000, "eprom", 0) + // "IOMEGA ZIP 100 14.A09/04/98" + ROM_LOAD("nm27c520m.u1", 0x00000, 0x10000, CRC(67a04459) SHA1(b8df2a733838db5116982a7295484b77b272287c)) // 20-pin address-latched device +ROM_END + +const tiny_rom_entry *zip100_ide_device::device_rom_region() const +{ + return ROM_NAME(zip100_ide); +} diff --git a/src/devices/bus/ata/zip100.h b/src/devices/bus/ata/zip100.h new file mode 100644 index 00000000000..8b90a62533f --- /dev/null +++ b/src/devices/bus/ata/zip100.h @@ -0,0 +1,41 @@ +// license:BSD-3-Clause +// copyright-holders:AJR + +#ifndef MAME_BUS_ATA_ZIP100_H +#define MAME_BUS_ATA_ZIP100_H + +#pragma once + +#include "atadev.h" + +class zip100_ide_device : public device_t, public device_ata_interface +{ +public: + zip100_ide_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 void device_add_mconfig(machine_config &config) override; + virtual const tiny_rom_entry *device_rom_region() const override; + + virtual u16 read_dma() override; + virtual u16 read_cs0(offs_t offset, u16 mem_mask = 0xffff) override; + virtual u16 read_cs1(offs_t offset, u16 mem_mask = 0xffff) override; + virtual void write_dma(u16 data) override; + virtual void write_cs0(offs_t offset, u16 data, u16 mem_mask = 0xffff) override; + virtual void write_cs1(offs_t offset, u16 data, u16 mem_mask = 0xffff) override; + virtual void write_dmack(int state) override; + virtual void write_csel(int state) override; + virtual void write_dasp(int state) override; + virtual void write_pdiag(int state) override; + +private: + void mem_map(address_map &map); + void ext_map(address_map &map); +}; + +DECLARE_DEVICE_TYPE(ZIP100_IDE, zip100_ide_device) + +#endif // MAME_BUS_ATA_ZIP100_H -- cgit v1.2.3