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mac128/512: preliminary (not working) support for the GCC HyperDrive hard disk interface [R. Belmont, Guru]
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arbee
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commit
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@ -3208,6 +3208,8 @@ if (BUSES["MACPDS"]~=null) then
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MAME_DIR .. "src/devices/bus/macpds/macpds.h",
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MAME_DIR .. "src/devices/bus/macpds/pds_tpdfpd.cpp",
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MAME_DIR .. "src/devices/bus/macpds/pds_tpdfpd.h",
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MAME_DIR .. "src/devices/bus/macpds/hyperdrive.cpp",
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MAME_DIR .. "src/devices/bus/macpds/hyperdrive.h",
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}
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end
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192
src/devices/bus/macpds/hyperdrive.cpp
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192
src/devices/bus/macpds/hyperdrive.cpp
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@ -0,0 +1,192 @@
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// license:BSD-3-Clause
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// copyright-holders:R. Belmont
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/***************************************************************************
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HyperDrive ST-506 HDD Controller for Macintosh 128k, 512k and Plus.
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General Computer Corporation (GCC) 1985
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Driver by R. Belmont
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Board Notes by Guru
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PCB Layout
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----------
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HyperDrive 20 P11-A Rev 1.1
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|----------------------------------|
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|74LS123 AM26LS32 DP8465 |
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| |---|
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|P3 10MHz 74LS126 74LS74 |---|
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| ROM_HIGH.U15 ROM_LOW.U16 |
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| |-| |
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| | | PAL20L10 |
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| | | |
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| | | 74LS32 74LS245 |
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| | | |
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| CN| | |
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| | | 74HC4040 6116 |
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| | | |
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| | | WD2010A-PL |
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| |-| |
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| P2 74LS14 74LS273 |
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| P1 7406 7438 |
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| AM26LS31 74LS151 L13-120 74LS174 |
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|----------------------------------|
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Notes: (All IC's shown)
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P1/P2 - 34-pin (P1) and 20-pin (P2) ST-506 control & data cable connectors
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The connected HDD is a ST-506 MMI Model MM112 10MB HDD manufactured by 'Microcomputer Memories Inc.'
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The Official HDD parameters are: 306 Cylinders, 4 Heads, 17 Sectors Per Track and 512 Bytes Per Sector for a
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total formatted capacity of 10,653,696 bytes. Note the parameters and/or capacity may not be the same
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when used with the HyperDrive Controller.
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The HDD was backed up on a 80386-based PC with a plug-in ST-506 controller card using the DOS program available
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here.... http://www.partition-recovery.com/diskimage.htm
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When backing up the drive, the Sectors Per Track was adjusted to 16 to get a good read.
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The image was transferred to a modern PC using a parallel ZIP drive because IDE and ST-506 controllers cannot exist
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together in the same PC due to using the same IRQ and BIOS drive 80h.
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P3 - 4-pin power connector for HDD
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CN - 64-pin connector joined with a flat cable to Macintosh motherboard 68000 CPU. The cable has a special socket
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on the end that clips over the top of the 68000 CPU. This is required for end-user installations because the 68000
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CPU is soldered into the Macintosh motherboard.
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DP8465 - 8kx8-bit SRAM
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6116 - 2kx8-bit SRAM
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ROM* - 2732 4kx8-bit EPROM (HyperDrive Boot ROMs)
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WD2010A-PL - Western Digital WD2010A-PL05-02 Winchester Disk Controller
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74HC4040 - 74HC4040 12-Stage Binary Ripple Counter with Clock Input, Asynchronous
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Master Reset Input and Twelve Parallel Outputs
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AM26LS31 - AMD AM26LS31 Quad EIA-422 Differential Line Driver with Tri-State Outputs
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AM26LS32 - AMD AM26LS32 Quad EIA-422 Differential Line Receiver with Tri-State Outputs
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L13-120 - possibly a delay line?
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PAL20L10 - PAL20L10 Programmable Array Logic marked 'PALCFO'
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7406 - 7406 Hex Inverter Buffer/Driver with Open-Collector High-Voltage Outputs
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74LS14 - 74LS14 Hex Inverter with Schmitt Trigger Inputs
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74LS32 - 74LS32 Quad 2-input OR Gate
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74LS38 - 74LS38 Quad 2-input NAND Buffer
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74LS74 - 74LS74 Dual JK Flip-Flop
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74LS123 - 74LS123 Dual Retriggerable Monostable Multivibrator
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74LS126 - 74LS126 Quad Tri-State Buffer
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74LS151 - 74LS151 High-Speed 8-Input Digital Multiplexer
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74LS174 - 74LS174 Hex D-Type Flip-Flop With Clear
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74LS245 - 74LS245 Octal Bus Transceiver With 3-State Outputs
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74LS273 - 74LS273 Octal D-Type Flip-Flop With Clear
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***************************************************************************/
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#include "emu.h"
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#include "hyperdrive.h"
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#define HYPERDRIVE_ROM_REGION "hyperd_rom"
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ROM_START( hyperdrive )
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ROM_REGION(0x2000, HYPERDRIVE_ROM_REGION, ROMREGION_16BIT|ROMREGION_BE)
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ROM_LOAD16_BYTE( "hyperdrive 52949-h v7.06.u15", 0x000000, 0x001000, CRC(b0ec3dd9) SHA1(bf8cea0ba69f5ddbe0ba50fc709c3ba81728cecf) )
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ROM_LOAD16_BYTE( "hyperdrive 52949-l v7.06.u16", 0x000001, 0x001000, CRC(0ff90c48) SHA1(4ebe1ead72064c470b7262c14e7e6887643816bf) )
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ROM_END
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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DEFINE_DEVICE_TYPE(PDS_HYPERDRIVE, macpds_hyperdrive_device, "pds_hyper", "GCC HyperDrive")
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//-------------------------------------------------
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// device_add_mconfig - add device configuration
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//-------------------------------------------------
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void macpds_hyperdrive_device::device_add_mconfig(machine_config &config)
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{
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WD2010(config, m_hdc, 5000000);
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// m_hdc->out_bcr_callback().set(FUNC(macpds_hyperdrive_device::clct_w));
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m_hdc->in_bcs_callback().set(FUNC(macpds_hyperdrive_device::hdd_r));
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m_hdc->out_bcs_callback().set(FUNC(macpds_hyperdrive_device::hdd_w));
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m_hdc->in_drdy_callback().set_constant(1);
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m_hdc->in_index_callback().set_constant(1);
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m_hdc->in_wf_callback().set_constant(1);
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m_hdc->in_tk000_callback().set_constant(1);
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m_hdc->in_sc_callback().set_constant(1);
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HARDDISK(config, "hard0", 0);
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}
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//-------------------------------------------------
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// rom_region - device-specific ROM region
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//-------------------------------------------------
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const tiny_rom_entry *macpds_hyperdrive_device::device_rom_region() const
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{
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return ROM_NAME( hyperdrive );
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// macpds_hyperdrive_device - constructor
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//-------------------------------------------------
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macpds_hyperdrive_device::macpds_hyperdrive_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
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macpds_hyperdrive_device(mconfig, PDS_HYPERDRIVE, tag, owner, clock)
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{
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}
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macpds_hyperdrive_device::macpds_hyperdrive_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) :
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device_t(mconfig, type, tag, owner, clock),
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device_macpds_card_interface(mconfig, *this),
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m_hdc(*this, "wd2010")
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void macpds_hyperdrive_device::device_start()
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{
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set_macpds_device();
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install_rom(this, HYPERDRIVE_ROM_REGION, 0xf80000);
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// WD200x registers
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m_macpds->install_device(0xfc0000, 0xfc000f, read16_delegate(FUNC(macpds_hyperdrive_device::hyperdrive_r), this), write16_delegate(FUNC(macpds_hyperdrive_device::hyperdrive_w), this));
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void macpds_hyperdrive_device::device_reset()
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{
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}
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WRITE16_MEMBER( macpds_hyperdrive_device::hyperdrive_w )
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{
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m_hdc->write(offset, data & 0xff);
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}
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READ16_MEMBER( macpds_hyperdrive_device::hyperdrive_r )
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{
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return m_hdc->read(offset);
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}
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WRITE8_MEMBER( macpds_hyperdrive_device::hdd_w )
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{
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// printf("hdd_w: %02x @ %x\n", data, offset);
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}
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READ8_MEMBER( macpds_hyperdrive_device::hdd_r )
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{
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// printf("hdd_r: @ %x\n", offset);
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return 0;
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}
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53
src/devices/bus/macpds/hyperdrive.h
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53
src/devices/bus/macpds/hyperdrive.h
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@ -0,0 +1,53 @@
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// license:BSD-3-Clause
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// copyright-holders:R. Belmont
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#ifndef MAME_BUS_PDS_HYPERDRIVE_H
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#define MAME_BUS_PDS_HYPERDRIVE_H
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#pragma once
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#include "macpds.h"
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#include "machine/wd2010.h"
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#include "imagedev/harddriv.h"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> macpds_hyperdrive_device
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class macpds_hyperdrive_device :
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public device_t,
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public device_macpds_card_interface
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{
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public:
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// construction/destruction
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macpds_hyperdrive_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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static constexpr feature_type imperfect_features() { return feature::DISK; }
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protected:
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macpds_hyperdrive_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
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// device-level overrides
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virtual void device_start() override;
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virtual void device_reset() override;
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// optional information overrides
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virtual void device_add_mconfig(machine_config &config) override;
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virtual const tiny_rom_entry *device_rom_region() const override;
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required_device<wd2010_device> m_hdc;
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private:
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DECLARE_READ16_MEMBER(hyperdrive_r);
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DECLARE_WRITE16_MEMBER(hyperdrive_w);
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DECLARE_READ8_MEMBER(hdd_r);
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DECLARE_WRITE8_MEMBER(hdd_w);
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};
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// device type definition
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DECLARE_DEVICE_TYPE(PDS_HYPERDRIVE, macpds_hyperdrive_device)
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#endif // MAME_BUS_PDS_TPDFPD_H
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@ -102,6 +102,8 @@ c0 8 data bits, Rx disabled
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#include "softlist.h"
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#include "speaker.h"
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#include "bus/macpds/hyperdrive.h"
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#define MAC_SCREEN_NAME "screen"
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#define MAC_539X_1_TAG "539x_1"
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#define MAC_539X_2_TAG "539x_2"
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@ -1337,6 +1339,11 @@ static const floppy_interface mac_floppy_interface =
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"floppy_3_5"
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};
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static void mac_pds_cards(device_slot_interface &device)
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{
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device.option_add("hyperdrive", PDS_HYPERDRIVE); // GCC HyperDrive ST-506 interface
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}
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void mac128_state::mac512ke(machine_config &config)
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{
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/* basic machine hardware */
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@ -1390,6 +1397,9 @@ void mac128_state::mac512ke(machine_config &config)
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RAM(config, m_ram);
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m_ram->set_default_size("512K");
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MACPDS(config, "macpds", "maincpu");
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MACPDS_SLOT(config, "pds", "macpds", mac_pds_cards, nullptr);
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// software list
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SOFTWARE_LIST(config, "flop35_list").set_type("mac_flop", SOFTWARE_LIST_ORIGINAL_SYSTEM);
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SOFTWARE_LIST(config, "hdd_list").set_type("mac_hdd", SOFTWARE_LIST_ORIGINAL_SYSTEM);
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