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-rw-r--r--src/mess/machine/a2vulcan.c280
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diff --git a/src/mess/machine/a2vulcan.c b/src/mess/machine/a2vulcan.c
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index 280e100a211..00000000000
--- a/src/mess/machine/a2vulcan.c
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-/*********************************************************************
-
- a2vulcan.c
-
- Applied Engineering Vulcan IDE controller
-
- Our copy of ROM version 1.4 will refuse any drive > 40 megs (top 2 bytes of # blocks >= 0x15b).
- Protection against field upgrades?
-
- Vulcan Gold ROMs omit this protection but don't work with the version of the partitioner program
- we have.
-
- Recognized drives by IDE features parameters:
- (# of cylinders is never checked, just heads, sectors, and the vendor specific at 0x0A)
-
- H S Vendor specific #5
- 8, 33 + 0x69 0x31d blocks (400K?!)
- 2, 33 + 0x69 0xa208 blocks (20 megs, 21237760 bytes)
- 4, 26 + 0x69 0x14500 blocks (40 megs, 42598400 bytes)
- 5, 29 + (any) 0x25c5b blocks (80 megs, 79214080 bytes) (chs = 1067,5,29)
- 7, 29 + 0x44 0x34e19 blocks (100 megs, 110899712 bytes)
- 9, 29 + (any) 0x44068 blocks (140 megs, 142659584 bytes) (chs = 1068,9,29)
- 9, 36 + 0x44 0x54888 blocks (180 megs, 177278976 bytes)
- 9, 36 + 0xff 0x645a8 blocks (200 megs, 210456576 bytes)
- 7, 34 + (any) 0x32252 blocks (100 megs, 105161728 bytes) (chs = 863,7,34)
- 4, 17 + 0x55 0xa218 blocks (20 megs, 21245952 bytes)
- 4, 26 + 0x55 0xa218 blocks (20 megs, 21245952 bytes)
- 5, 17 + 0x55 0x15234 blocks (40 megs, 44328960 bytes)
- 6, 26 + 0x55 0x15234 blocks (40 megs, 44328960 bytes)
- 2, 28 + 0x36 0xa250 blocks (20 megs, 21274624 bytes)
- 4, 28 + 0x36 0x143c0 blocks (40 megs, 42434450 bytes)
- 4, 28 + 0x67 0x143c0 blocks (40 megs, 42434450 bytes)
- 4, 27 + 0x43 0x147cc blocks (40 megs, 42964992 bytes)
- 5, 17 + 0x26 0x13ec0 blocks (40 megs, 41779200 bytes) (chs = 960,5,17)
- 15, 32 + 0x43 0x5f6e0 blocks (200 megs, 200130560 bytes)
- 16, 38 + 0x94 0x6540c blocks (200 megs, 212342784 bytes)
- 10, 17 + (any) 0x2792f blocks (80 megs, 82992640 bytes) (chs = 954,10,17)
-
- Partition block:
- +0000: 0xAE 0xAE signature
- +0002: bytesum of remaining 508 bytes of partition block
- +0005: total # of blocks (3 bytes)
- +000E: boot partition # (0 based)
- +0100: partition records
-
- Partition record:
- +02: partition number (seems to be only valud for non-CLEAR partitions)
- +03: little-endian unsigned word: # of 512 byte blocks
- +06: bit 6 set for ON, bits 0-2 = 0 CLEAR, 1 PRODOS, 2 DOS 3.3, 3 PASCAL, 4 CP/M
- +07: Partition name (Apple high-ASCII, zero terminated unless full 10 chars)
-
-*********************************************************************/
-
-#include "a2vulcan.h"
-#include "includes/apple2.h"
-#include "machine/ataintf.h"
-#include "imagedev/harddriv.h"
-
-//**************************************************************************
-// GLOBAL VARIABLES
-//**************************************************************************
-
-const device_type A2BUS_VULCAN = &device_creator<a2bus_vulcan_device>;
-
-#define VULCAN_ROM_REGION "vulcan_rom"
-#define VULCAN_ATA_TAG "vulcan_ata"
-
-static MACHINE_CONFIG_FRAGMENT( vulcan )
- MCFG_ATA_INTERFACE_ADD(VULCAN_ATA_TAG, ata_devices, "hdd", NULL, false)
-MACHINE_CONFIG_END
-
-ROM_START( vulcan )
- ROM_REGION(0x4000, VULCAN_ROM_REGION, 0)
- ROM_LOAD( "ae vulcan rom v1.4.bin", 0x000000, 0x004000, CRC(798d5825) SHA1(1d668e856e33c6eeb10fe26975341afa8acb81f5) )
-ROM_END
-
-/***************************************************************************
- FUNCTION PROTOTYPES
-***************************************************************************/
-
-//-------------------------------------------------
-// machine_config_additions - device-specific
-// machine configurations
-//-------------------------------------------------
-
-machine_config_constructor a2bus_vulcanbase_device::device_mconfig_additions() const
-{
- return MACHINE_CONFIG_NAME( vulcan );
-}
-
-//-------------------------------------------------
-// rom_region - device-specific ROM region
-//-------------------------------------------------
-
-const rom_entry *a2bus_vulcanbase_device::device_rom_region() const
-{
- return ROM_NAME( vulcan );
-}
-
-//**************************************************************************
-// LIVE DEVICE
-//**************************************************************************
-
-a2bus_vulcanbase_device::a2bus_vulcanbase_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source) :
- device_t(mconfig, type, name, tag, owner, clock, shortname, source),
- device_a2bus_card_interface(mconfig, *this),
- m_ata(*this, VULCAN_ATA_TAG)
-{
-}
-
-a2bus_vulcan_device::a2bus_vulcan_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
- a2bus_vulcanbase_device(mconfig, A2BUS_VULCAN, "Applied Engineering Vulcan IDE controller", tag, owner, clock, "a2vulcan", __FILE__)
-{
-}
-
-//-------------------------------------------------
-// device_start - device-specific startup
-//-------------------------------------------------
-
-void a2bus_vulcanbase_device::device_start()
-{
- // set_a2bus_device makes m_slot valid
- set_a2bus_device();
-
- astring tempstring;
- m_rom = device().machine().root_device().memregion(this->subtag(tempstring, VULCAN_ROM_REGION))->base();
-
- // disable 40 meg partition size limit / protection
- m_rom[0x59e] = 0xea;
- m_rom[0x59f] = 0xea;
-
- save_item(NAME(m_lastdata));
- save_item(NAME(m_ram));
- save_item(NAME(m_rombank));
- save_item(NAME(m_rambank));
-}
-
-void a2bus_vulcanbase_device::device_reset()
-{
- m_rombank = m_rambank = 0;
- m_last_read_was_0 = false;
-}
-
-
-/*-------------------------------------------------
- read_c0nx - called for reads from this card's c0nx space
--------------------------------------------------*/
-
-UINT8 a2bus_vulcanbase_device::read_c0nx(address_space &space, UINT8 offset)
-{
- switch (offset)
- {
- case 0:
- m_lastdata = m_ata->read_cs0(space, offset, 0xffff);
-// printf("IDE: read %04x\n", m_lastdata);
- m_last_read_was_0 = true;
- return m_lastdata&0xff;
-
- case 1:
- if (m_last_read_was_0)
- {
- m_last_read_was_0 = false;
- return (m_lastdata>>8) & 0xff;
- }
- else
- {
- return m_ata->read_cs0(space, offset, 0xff);
- }
- break;
-
- case 2:
- case 3:
- case 4:
- case 5:
- case 6:
- case 7:
- return m_ata->read_cs0(space, offset, 0xff);
-
- default:
-// printf("Read @ C0n%x\n", offset);
- break;
-
- }
-
- return 0xff;
-}
-
-
-/*-------------------------------------------------
- write_c0nx - called for writes to this card's c0nx space
--------------------------------------------------*/
-
-void a2bus_vulcanbase_device::write_c0nx(address_space &space, UINT8 offset, UINT8 data)
-{
- switch (offset)
- {
- case 0:
- m_lastdata = data;
- m_last_read_was_0 = true;
- break;
-
- case 1:
- if (m_last_read_was_0)
- {
- m_last_read_was_0 = false;
- m_lastdata &= 0x00ff;
- m_lastdata |= (data << 8);
-// printf("IDE: write %04x\n", m_lastdata);
- m_ata->write_cs0(space, 0, m_lastdata, 0xffff);
- }
- else
- {
- m_ata->write_cs0(space, offset, data, 0xff);
- }
- break;
-
- case 2:
- case 3:
- case 4:
- case 5:
- case 6:
- case 7:
-// printf("%02x to IDE controller @ %x\n", data, offset);
- m_ata->write_cs0(space, offset, data, 0xff);
- break;
-
- case 9: // ROM bank
-// printf("%x (%x) to ROM bank\n", data, (data & 0xf) * 0x400);
- m_rombank = (data & 0xf) * 0x400;
- break;
-
- case 0xa: // RAM bank
-// printf("%x to RAM bank\n", data);
- m_rambank = (data & 7) * 0x400;
- break;
-
- default:
- logerror("a2vulcan: write %02x @ unhandled C0n%x\n", data, offset);
- break;
- }
-}
-
-/*-------------------------------------------------
- read_cnxx - called for reads from this card's cnxx space
--------------------------------------------------*/
-
-UINT8 a2bus_vulcanbase_device::read_cnxx(address_space &space, UINT8 offset)
-{
- int slotimg = m_slot * 0x100;
-
- // ROM contains a CnXX image for each of slots 1-7 at 0x3400
- return m_rom[offset+slotimg+0x3400];
-}
-
-/*-------------------------------------------------
- read_c800 - called for reads from this card's c800 space
--------------------------------------------------*/
-
-UINT8 a2bus_vulcanbase_device::read_c800(address_space &space, UINT16 offset)
-{
- offset &= 0x7ff;
- if (offset < 0x400) // c800-cbff is banked RAM window, cc00-cfff is banked ROM window
- {
-// printf("read RAM @ %x (bank %x)\n", offset, m_rambank);
- return m_ram[offset + m_rambank];
- }
-
- offset -= 0x400;
- return m_rom[offset+m_rombank];
-}
-
-void a2bus_vulcanbase_device::write_c800(address_space &space, UINT16 offset, UINT8 data)
-{
- offset &= 0x7ff;
- if (offset < 0x400)
- {
-// printf("%02x to RAM @ %x (bank %x)\n", data, offset, m_rambank);
- m_ram[offset + m_rambank] = data;
- }
-}