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(MESS) checkpoint: AE Vulcan IDE card (nw)
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R. Belmont
parent
ffd7f21077
commit
39431cdbe7
2
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2
.gitattributes
vendored
@ -6749,6 +6749,8 @@ src/mess/machine/a2thunderclock.c svneol=native#text/plain
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src/mess/machine/a2thunderclock.h svneol=native#text/plain
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src/mess/machine/a2videoterm.c svneol=native#text/plain
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src/mess/machine/a2videoterm.h svneol=native#text/plain
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src/mess/machine/a2vulcan.c svneol=native#text/plain
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src/mess/machine/a2vulcan.h svneol=native#text/plain
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src/mess/machine/a7800.c svneol=native#text/plain
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src/mess/machine/abc1600_bus.c svneol=native#text/plain
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src/mess/machine/abc1600_bus.h svneol=native#text/plain
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261
src/mess/machine/a2vulcan.c
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261
src/mess/machine/a2vulcan.c
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/*********************************************************************
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a2vulcan.c
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Applied Engineering Vulcan IDE controller
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Recognized drives by IDE features parameters:
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(# of cylinders is never checked, just heads, sectors, and the vendor specific at 0x0A)
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H S Vendor specific #5
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8, 33 + 0x69
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2, 33 + 0x69
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4, 26 + 0x69
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5, 29 + (any)
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7, 29 + 0x44
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9, 29 + (any)
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9, 36 + 0x44
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9, 36 + 0xff
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7, 34 + (any)
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4, 17 + 0x55
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4, 26 + 0x55
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5, 17 + 0x55
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6, 26 + 0x55
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2, 28 + 0x36
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4, 28 + 0x36
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4, 28 + 0x67
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4, 27 + 0x43
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5, 17 + 0x26
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15, 32 + 0x43
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16, 38 + 0x94
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10, 17 + (any)
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*********************************************************************/
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#include "a2vulcan.h"
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#include "includes/apple2.h"
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#include "machine/idectrl.h"
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#include "imagedev/harddriv.h"
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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const device_type A2BUS_VULCAN = &device_creator<a2bus_vulcan_device>;
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#define VULCAN_ROM_REGION "vulcan_rom"
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#define VULCAN_IDE_TAG "vulcan_ide"
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static MACHINE_CONFIG_FRAGMENT( vulcan )
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MCFG_IDE_CONTROLLER_ADD(VULCAN_IDE_TAG, ide_image_devices, "hdd", "hdd", false)
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MACHINE_CONFIG_END
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ROM_START( vulcan )
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ROM_REGION(0x4000, VULCAN_ROM_REGION, 0)
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ROM_LOAD( "ae vulcan rom v1.4.bin", 0x000000, 0x004000, CRC(798d5825) SHA1(1d668e856e33c6eeb10fe26975341afa8acb81f5) )
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ROM_END
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/***************************************************************************
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FUNCTION PROTOTYPES
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***************************************************************************/
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//-------------------------------------------------
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// machine_config_additions - device-specific
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// machine configurations
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//-------------------------------------------------
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machine_config_constructor a2bus_vulcanbase_device::device_mconfig_additions() const
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{
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return MACHINE_CONFIG_NAME( vulcan );
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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 rom_entry *a2bus_vulcanbase_device::device_rom_region() const
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{
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return ROM_NAME( vulcan );
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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a2bus_vulcanbase_device::a2bus_vulcanbase_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock) :
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device_t(mconfig, type, name, tag, owner, clock),
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device_a2bus_card_interface(mconfig, *this),
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m_ide(*this, VULCAN_IDE_TAG)
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{
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}
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a2bus_vulcan_device::a2bus_vulcan_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
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a2bus_vulcanbase_device(mconfig, A2BUS_VULCAN, "Applied Engineering Vulcan IDE controller", tag, owner, clock)
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{
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m_shortname = "a2vulcan";
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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 a2bus_vulcanbase_device::device_start()
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{
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// set_a2bus_device makes m_slot valid
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set_a2bus_device();
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astring tempstring;
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m_rom = device().machine().root_device().memregion(this->subtag(tempstring, VULCAN_ROM_REGION))->base();
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// patch partition table check failure
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// m_rom[0x59e] = 0xea;
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// m_rom[0x59f] = 0xea;
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save_item(NAME(m_lastdata));
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save_item(NAME(m_ram));
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save_item(NAME(m_rombank));
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save_item(NAME(m_rambank));
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}
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void a2bus_vulcanbase_device::device_reset()
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{
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m_rombank = m_rambank = 0;
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m_last_read_was_0 = false;
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}
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/*-------------------------------------------------
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read_c0nx - called for reads from this card's c0nx space
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-------------------------------------------------*/
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UINT8 a2bus_vulcanbase_device::read_c0nx(address_space &space, UINT8 offset)
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{
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switch (offset)
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{
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case 0:
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m_lastdata = ide_controller_r(m_ide, 0x1f0+offset, 2);
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// printf("IDE: read %04x\n", m_lastdata);
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m_last_read_was_0 = true;
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return m_lastdata&0xff;
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case 1:
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if (m_last_read_was_0)
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{
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m_last_read_was_0 = false;
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return (m_lastdata>>8) & 0xff;
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}
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else
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{
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return ide_controller_r(m_ide, 0x1f0+offset, 1);
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}
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break;
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case 2:
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case 3:
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case 4:
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case 5:
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case 6:
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case 7:
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return ide_controller_r(m_ide, 0x1f0+offset, 1);
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default:
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// printf("Read @ C0n%x\n", offset);
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break;
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}
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return 0xff;
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}
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/*-------------------------------------------------
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write_c0nx - called for writes to this card's c0nx space
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-------------------------------------------------*/
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void a2bus_vulcanbase_device::write_c0nx(address_space &space, UINT8 offset, UINT8 data)
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{
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switch (offset)
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{
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case 0:
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m_lastdata = data;
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m_last_read_was_0 = true;
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break;
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case 1:
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if (m_last_read_was_0)
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{
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m_last_read_was_0 = false;
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m_lastdata &= 0x00ff;
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m_lastdata |= (data << 8);
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// printf("IDE: write %04x\n", m_lastdata);
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ide_controller_w(m_ide, 0x1f0, 2, m_lastdata);
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}
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else
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{
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ide_controller_w(m_ide, 0x1f0+offset, 1, data);
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}
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break;
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case 2:
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case 3:
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case 4:
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case 5:
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case 6:
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case 7:
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// printf("%02x to IDE controller @ %x\n", data, offset);
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ide_controller_w(m_ide, 0x1f0+offset, 1, data);
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break;
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case 9: // ROM bank
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// printf("%x (%x) to ROM bank\n", data, (data & 0xf) * 0x400);
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m_rombank = (data & 0xf) * 0x400;
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break;
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case 0xa: // RAM bank
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// printf("%x to RAM bank\n", data);
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m_rambank = (data & 7) * 0x400;
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break;
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default:
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printf("Write %02x @ C0n%x\n", data, offset);
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break;
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}
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}
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/*-------------------------------------------------
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read_cnxx - called for reads from this card's cnxx space
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-------------------------------------------------*/
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UINT8 a2bus_vulcanbase_device::read_cnxx(address_space &space, UINT8 offset)
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{
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int slotimg = m_slot * 0x100;
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// ROM contains a CnXX image for each of slots 1-7 at 0x3400
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return m_rom[offset+slotimg+0x3400];
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}
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/*-------------------------------------------------
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read_c800 - called for reads from this card's c800 space
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-------------------------------------------------*/
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UINT8 a2bus_vulcanbase_device::read_c800(address_space &space, UINT16 offset)
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{
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offset &= 0x7ff;
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if (offset < 0x400) // c800-cbff is banked RAM window, cc00-cfff is banked ROM window
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{
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// printf("read RAM @ %x (bank %x)\n", offset, m_rambank);
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return m_ram[offset + m_rambank];
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}
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return m_rom[(offset & 0x3ff)+m_rombank];
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}
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void a2bus_vulcanbase_device::write_c800(address_space &space, UINT16 offset, UINT8 data)
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{
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offset &= 0x7ff;
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if (offset < 0x400)
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{
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// printf("%02x to RAM @ %x (bank %x)\n", data, offset, m_rambank);
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m_ram[offset + m_rambank] = data;
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}
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}
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65
src/mess/machine/a2vulcan.h
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65
src/mess/machine/a2vulcan.h
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@ -0,0 +1,65 @@
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/*********************************************************************
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a2vulcan.h
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Applied Engineering Vulcan IDE controller
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*********************************************************************/
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#ifndef __A2BUS_VULCAN__
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#define __A2BUS_VULCAN__
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#include "emu.h"
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#include "machine/a2bus.h"
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#include "machine/idectrl.h"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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class a2bus_vulcanbase_device:
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public device_t,
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public device_a2bus_card_interface
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{
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public:
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// construction/destruction
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a2bus_vulcanbase_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock);
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// optional information overrides
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virtual machine_config_constructor device_mconfig_additions() const;
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virtual const rom_entry *device_rom_region() const;
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protected:
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virtual void device_start();
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virtual void device_reset();
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// overrides of standard a2bus slot functions
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virtual UINT8 read_c0nx(address_space &space, UINT8 offset);
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virtual void write_c0nx(address_space &space, UINT8 offset, UINT8 data);
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virtual UINT8 read_cnxx(address_space &space, UINT8 offset);
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virtual UINT8 read_c800(address_space &space, UINT16 offset);
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virtual void write_c800(address_space &space, UINT16 offset, UINT8 data);
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required_device<ide_controller_device> m_ide;
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UINT8 *m_rom;
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UINT8 m_ram[8*1024];
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private:
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UINT16 m_lastdata;
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int m_rombank, m_rambank;
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bool m_last_read_was_0;
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};
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class a2bus_vulcan_device : public a2bus_vulcanbase_device
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{
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public:
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a2bus_vulcan_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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protected:
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};
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// device type definition
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extern const device_type A2BUS_VULCAN;
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#endif /* __A2BUS_VULCAN__ */
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@ -695,6 +695,7 @@ $(MESSOBJ)/apple.a: \
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$(MESS_MACHINE)/a2echoii.o \
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$(MESS_MACHINE)/a2arcadebd.o \
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$(MESS_MACHINE)/a2midi.o \
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$(MESS_MACHINE)/a2vulcan.o \
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$(MESS_MACHINE)/a2estd80col.o \
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$(MESS_MACHINE)/a2eext80col.o \
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$(MESS_MACHINE)/a2eramworks3.o \
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