summaryrefslogtreecommitdiffstatshomepage
path: root/src/lib/util/options.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/util/options.cpp')
-rw-r--r--src/lib/util/options.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/lib/util/options.cpp b/src/lib/util/options.cpp
index 56bad147bcb..9890ae46115 100644
--- a/src/lib/util/options.cpp
+++ b/src/lib/util/options.cpp
@@ -400,11 +400,11 @@ bool core_options::parse_command_line(int argc, char **argv, int priority, std::
// an INI file
//-------------------------------------------------
-bool core_options::parse_ini_file(core_file &inifile, int priority, int ignore_priority, std::string &error_string)
+bool core_options::parse_ini_file(util::core_file &inifile, int priority, int ignore_priority, std::string &error_string)
{
// loop over lines in the file
char buffer[4096];
- while (core_fgets(buffer, ARRAY_LENGTH(buffer), &inifile) != nullptr)
+ while (inifile.gets(buffer, ARRAY_LENGTH(buffer)) != nullptr)
{
// find the extent of the name
char *optionname;
#n102'>102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315
// license:BSD-3-Clause
// copyright-holders:R. Belmont
/*********************************************************************

    a2hsscsi.c

    Implementation of the Apple II High Speed SCSI Card

    This uses an ASIC called "Sandwich II"; the card itself is
    sometimes known as "Cocoon".

    Notes:
    C0n0-C0n7 = NCR5380 registers in normal order
    C0n8 = DMA address low
    C0n9 = DMA address high
    C0nA = DMA count low
    C0nB = DMA count high
    C0nC = DMA control
    C0nD = Enable DMA / reset 5380
    C0nE = Priority (read bits 5-7) / Fire watchdog (write bit 7) / RAM bank (write bits 0-3)
    C0nF = DMA speed (bit 7 = 0 for fast, 1 for slow) / ROM bank (write bits 0-4)

    DMA control register (C0nC):
    0x01 = pseudo-DMA enable
    0x02 = DMA enable
    0x04 = test mode
    0x08 = disable stop-DMA-on-IRQ
    0x10 = DMA direction (read only)
    0x20 = 5380 IRQ enable
    0x40 = system DMA status (read only)
    0x80 = DMA stopped due to IRQ

    Enable DMA / reset 5380 register (C0nD):
    0x01 = Resume DMA after rollover or IRQ
    0x02 = Reset the 5380
    0x40 = Clear test mode
    0x80 = Set test mode

*********************************************************************/

#include "emu.h"
#include "a2hsscsi.h"
#include "machine/nscsi_cd.h"
#include "machine/nscsi_hd.h"

/***************************************************************************
    PARAMETERS
***************************************************************************/

//**************************************************************************
//  GLOBAL VARIABLES
//**************************************************************************

DEFINE_DEVICE_TYPE(A2BUS_HSSCSI, a2bus_hsscsi_device, "a2hsscsi", "Apple II High-Speed SCSI Card")

#define SCSI_ROM_REGION  "scsi_rom"
#define SCSI_BUS_TAG     "scsibus"
#define SCSI_5380_TAG    "scsibus:7:ncr5380"

void a2bus_hsscsi_device::ncr5380(device_t *device)
{
	devcb_base *devcb;
	(void)devcb;
	MCFG_DEVICE_CLOCK(10000000)
	MCFG_NCR5380N_DRQ_HANDLER(DEVWRITELINE("^^", a2bus_hsscsi_device, drq_w))
}

static void hsscsi_devices(device_slot_interface &device)
{
	device.option_add("cdrom", NSCSI_CDROM);
	device.option_add("harddisk", NSCSI_HARDDISK);
	device.option_add_internal("ncr5380", NCR5380N);
}

ROM_START( hsscsi )
	ROM_REGION(0x8000, SCSI_ROM_REGION, 0)
	ROM_LOAD( "341-0803.bin", 0x0000, 0x8000, CRC(2c15618b) SHA1(7d32227299933bfc1b7f8bc2062906fdfe530674) )
ROM_END

/***************************************************************************
    FUNCTION PROTOTYPES
***************************************************************************/

//-------------------------------------------------
//  device_add_mconfig - add device configuration
//-------------------------------------------------

MACHINE_CONFIG_START(a2bus_hsscsi_device::device_add_mconfig)
	MCFG_NSCSI_BUS_ADD(SCSI_BUS_TAG)
	MCFG_NSCSI_ADD("scsibus:0", hsscsi_devices, nullptr, false)
	MCFG_NSCSI_ADD("scsibus:1", hsscsi_devices, nullptr, false)
	MCFG_NSCSI_ADD("scsibus:2", hsscsi_devices, nullptr, false)
	MCFG_NSCSI_ADD("scsibus:3", hsscsi_devices, nullptr, false)
	MCFG_NSCSI_ADD("scsibus:4", hsscsi_devices, nullptr, false)
	MCFG_NSCSI_ADD("scsibus:5", hsscsi_devices, nullptr, false)
	MCFG_NSCSI_ADD("scsibus:6", hsscsi_devices, "harddisk", false)
	MCFG_NSCSI_ADD("scsibus:7", hsscsi_devices, "ncr5380", true)
	MCFG_SLOT_OPTION_MACHINE_CONFIG("ncr5380", ncr5380)
MACHINE_CONFIG_END

//-------------------------------------------------
//  rom_region - device-specific ROM region
//-------------------------------------------------

const tiny_rom_entry *a2bus_hsscsi_device::device_rom_region() const
{
	return ROM_NAME( hsscsi );
}

//**************************************************************************
//  LIVE DEVICE
//**************************************************************************

a2bus_hsscsi_device::a2bus_hsscsi_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) :
	device_t(mconfig, type, tag, owner, clock),
	device_a2bus_card_interface(mconfig, *this),
	m_ncr5380(*this, SCSI_5380_TAG),
	m_scsibus(*this, SCSI_BUS_TAG), m_rom(nullptr), m_rambank(0), m_rombank(0), m_drq(0), m_bank(0), m_816block(false), m_c0ne(0), m_c0nf(0)
{
}

a2bus_hsscsi_device::a2bus_hsscsi_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
	a2bus_hsscsi_device(mconfig, A2BUS_HSSCSI, tag, owner, clock)
{
}

//-------------------------------------------------
//  device_start - device-specific startup
//-------------------------------------------------

void a2bus_hsscsi_device::device_start()
{
	m_rom = machine().root_device().memregion(this->subtag(SCSI_ROM_REGION).c_str())->base();

	memset(m_ram, 0, 8192);

	save_item(NAME(m_ram));
	save_item(NAME(m_rambank));
	save_item(NAME(m_rombank));
	save_item(NAME(m_bank));
	save_item(NAME(m_drq));
	save_item(NAME(m_816block));
}

void a2bus_hsscsi_device::device_reset()
{
	m_rambank = 0;
	m_rombank = 0;
	m_c0ne = m_c0nf = 0;
	m_816block = false;
}


/*-------------------------------------------------
    read_c0nx - called for reads from this card's c0nx space
-------------------------------------------------*/

uint8_t a2bus_hsscsi_device::read_c0nx(uint8_t offset)
{
	switch (offset)
	{
		case 0:
		case 1:
		case 2:
		case 3:
		case 4:
		case 5:
		case 6:
		case 7:
//          logerror("Read 5380 @ %x\n", offset);
			return m_ncr5380->read(machine().dummy_space(), offset);

		case 0xc:
			return 0x00;    // indicate watchdog?

		case 0xe:   // code at cf32 wants to RMW this without killing the ROM bank
			return m_c0ne;

		case 0xf:
			return m_c0nf;

		default:
			logerror("Read c0n%x (%s)\n", offset, machine().describe_context());
			break;
	}

	return 0xff;
}


/*-------------------------------------------------
    write_c0nx - called for writes to this card's c0nx space
-------------------------------------------------*/

void a2bus_hsscsi_device::write_c0nx(uint8_t offset, uint8_t data)
{
	switch (offset)
	{
		case 0:
		case 1:
		case 2:
		case 3:
		case 4:
		case 5:
		case 6:
		case 7:
//          logerror("%02x to 5380 reg %x\n", data, offset);
			m_ncr5380->write(machine().dummy_space(), offset, data);
			break;
#if 0
		case 8: // DMA address low
			break;

		case 9: // DMA address high
			break;

		case 0xa: // DMA count low
			break;

		case 0xb: // DMA count high
			break;

		case 0xc:   // DMA control
			break;
#endif

		case 0xd:   // DMA enable / reset
			logerror("%02x to DMA enable/reset\n", data);
			if (data & 0x2)
			{
	//          logerror("Resetting SCSI: %02x at %s\n", data, machine().describe_context());
				m_ncr5380->reset();
			}
			break;

		case 0xe:
			m_c0ne = data;
			m_rombank = (data & 0x1f) * 0x400;
			logerror("c0ne to %x (ROM bank %x)\n", data & 0x1f, m_rombank);
			break;

		case 0xf:
			m_c0nf = data;
			m_rambank = (data & 0x7) * 0x400;
			logerror("c0nf to %x (RAM bank %x)\n", data & 0x7, m_rambank);
			break;

		default:
			logerror("Write %02x to c0n%x (%s)\n", data, offset, machine().describe_context());
			break;
	}
}

/*-------------------------------------------------
    read_cnxx - called for reads from this card's cnxx space
-------------------------------------------------*/

uint8_t a2bus_hsscsi_device::read_cnxx(uint8_t offset)
{
	// one slot image at the start of the ROM, it appears
	return m_rom[offset];
}

void a2bus_hsscsi_device::write_cnxx(uint8_t offset, uint8_t data)
{
//  logerror("Write %02x to cn%02x (PC=%x)\n", data, offset, machine().describe_context());
}

/*-------------------------------------------------
    read_c800 - called for reads from this card's c800 space
-------------------------------------------------*/

uint8_t a2bus_hsscsi_device::read_c800(uint16_t offset)
{
	// bankswitched RAM at c800-cbff
	// bankswitched ROM at cc00-cfff
	if (offset < 0x400)
	{
//      logerror("Read RAM at %x = %02x\n", offset+m_rambank, m_ram[offset + m_rambank]);
		if (m_816block)
		{
			return m_ncr5380->dma_r();
		}

		return m_ram[offset + m_rambank];
	}
	else
	{
		return m_rom[(offset-0x400) + m_rombank];
	}
}

/*-------------------------------------------------
    write_c800 - called for writes to this card's c800 space
-------------------------------------------------*/
void a2bus_hsscsi_device::write_c800(uint16_t offset, uint8_t data)
{
	if (offset < 0x400)
	{
//      logerror("%02x to RAM at %x\n", data, offset+m_rambank);
		if (m_816block)
		{
			m_ncr5380->dma_w(data);
		}
		else
		{
			m_ram[offset + m_rambank] = data;
		}
	}
}

WRITE_LINE_MEMBER( a2bus_hsscsi_device::drq_w )
{
	m_drq = (state ? 0x80 : 0x00);
}