C++ device_t::machine方法代码示例

static astring nvram_filename(device_t &device, astring &result)
{
    running_machine &machine = device.machine();
    astring name = astring(device.tag()).replacechr(':','_');
    if (rom_system_bios(machine) == 0 || rom_default_bios(machine) == rom_system_bios(machine)) {
        result.printf("%s\\%s",machine.basename(),name.cstr());
    } else {
        result.printf("%s_%d\\%s",machine.basename(),rom_system_bios(machine) - 1,name.cstr());
    }
    return result;
}

INLINE void ATTR_PRINTF(3,4) verboselog( device_t &device, int n_level, const char *s_fmt, ...)
{
	if (VERBOSE_LEVEL >= n_level)
	{
		va_list v;
		char buf[32768];
		va_start( v, s_fmt);
		vsprintf( buf, s_fmt, v);
		va_end( v);
		device.logerror( "%s: %s", device.machine().describe_context( ), buf);
	}
}

void consolewin_info::set_cpu(device_t &device)
{
	// first set all the views to the new cpu number
	m_views[0]->set_source_for_device(device);
	m_views[1]->set_source_for_device(device);

	// then update the caption
	std::string title = string_format("Debug: %s - %s '%s'", device.machine().system().name, device.name(), device.tag());
	std::string curtitle = win_get_window_text_utf8(window());
	if (title != curtitle)
		win_set_window_text_utf8(window(), title.c_str());

	// and recompute the children
	recompute_children();
}

void consolewin_info::set_cpu(device_t &device)
{
	// first set all the views to the new cpu number
	m_views[0]->set_source_for_device(device);
	m_views[1]->set_source_for_device(device);

	// then update the caption
	char curtitle[256];
	astring title;

	title.printf("Debug: %s - %s '%s'", device.machine().system().name, device.name(), device.tag());
	win_get_window_text_utf8(window(), curtitle, ARRAY_LENGTH(curtitle));
	if (title.cmp(curtitle) != 0)
		win_set_window_text_utf8(window(), title.c_str());

	// and recompute the children
	recompute_children();
}

void load_software_part_region(device_t &device, software_list_device &swlist, const char *swname, const rom_entry *start_region)
{
	astring locationtag(swlist.list_name()), breakstr("%");
	romload_private *romdata = device.machine().romload_data;
	const rom_entry *region;
	astring regiontag;

	romdata->errorstring.reset();
	romdata->softwarningstring.reset();

	romdata->romstotal = 0;
	romdata->romstotalsize = 0;
	romdata->romsloadedsize = 0;

	software_info *swinfo = swlist.find(swname);
	if (swinfo != NULL)
	{
		UINT32 supported = swinfo->supported();
		if (supported == SOFTWARE_SUPPORTED_PARTIAL)
		{
			romdata->errorstring.catprintf("WARNING: support for software %s (in list %s) is only partial\n", swname, swlist.list_name());
			romdata->softwarningstring.catprintf("Support for software %s (in list %s) is only partial\n", swname, swlist.list_name());
		}
		if (supported == SOFTWARE_SUPPORTED_NO)
		{
			romdata->errorstring.catprintf("WARNING: support for software %s (in list %s) is only preliminary\n", swname, swlist.list_name());
			romdata->softwarningstring.catprintf("Support for software %s (in list %s) is only preliminary\n", swname, swlist.list_name());
		}

		// attempt reading up the chain through the parents and create a locationtag astring in the format
		// " swlist % clonename % parentname "
		// open_rom_file contains the code to split the elements and to create paths to load from

		locationtag.cat(breakstr);

		while (swinfo != NULL)
		{
			locationtag.cat(swinfo->shortname()).cat(breakstr);
			const char *parentname = swinfo->parentname();
			swinfo = (parentname != NULL) ? swlist.find(parentname) : NULL;
		}
		// strip the final '%'
		locationtag.del(locationtag.len() - 1, 1);
	}


	/* loop until we hit the end */
	for (region = start_region; region != NULL; region = rom_next_region(region))
	{
		UINT32 regionlength = ROMREGION_GETLENGTH(region);

		device.subtag(regiontag, ROMREGION_GETTAG(region));
		LOG(("Processing region \"%s\" (length=%X)\n", regiontag.cstr(), regionlength));

		/* the first entry must be a region */
		assert(ROMENTRY_ISREGION(region));

		/* if this is a device region, override with the device width and endianness */
		endianness_t endianness = ROMREGION_ISBIGENDIAN(region) ? ENDIANNESS_BIG : ENDIANNESS_LITTLE;
		UINT8 width = ROMREGION_GETWIDTH(region) / 8;
		memory_region *memregion = romdata->machine().root_device().memregion(regiontag);
		if (memregion != NULL)
		{
			if (romdata->machine().device(regiontag) != NULL)
				normalize_flags_for_device(romdata->machine(), regiontag, width, endianness);

			/* clear old region (todo: should be moved to an image unload function) */
			romdata->machine().memory().region_free(memregion->name());
		}

		/* remember the base and length */
		romdata->region = romdata->machine().memory().region_alloc(regiontag, regionlength, width, endianness);
		LOG(("Allocated %X bytes @ %p\n", romdata->region->bytes(), romdata->region->base()));

		/* clear the region if it's requested */
		if (ROMREGION_ISERASE(region))
			memset(romdata->region->base(), ROMREGION_GETERASEVAL(region), romdata->region->bytes());

		/* or if it's sufficiently small (<= 4MB) */
		else if (romdata->region->bytes() <= 0x400000)
			memset(romdata->region->base(), 0, romdata->region->bytes());

#ifdef MAME_DEBUG
		/* if we're debugging, fill region with random data to catch errors */
		else
			fill_random(romdata->machine(), romdata->region->base(), romdata->region->bytes());
#endif

		/* update total number of roms */
		for (const rom_entry *rom = rom_first_file(region); rom != NULL; rom = rom_next_file(rom))
		{
			romdata->romstotal++;
			romdata->romstotalsize += rom_file_size(rom);
		}

		/* now process the entries in the region */
		if (ROMREGION_ISROMDATA(region))
			process_rom_entries(romdata, locationtag, region, region + 1, &device, TRUE);
		else if (ROMREGION_ISDISKDATA(region))
			process_disk_entries(romdata, core_strdup(regiontag.cstr()), region, region + 1, locationtag);
//.........这里部分代码省略.........