MAME SVN History

199869 Revisions

r22024 Friday 22nd March, 2013 at 11:03:16 UTC by Fabio Priuli
(MESS) speeding up slot implementation of the SVP add-on chip. nw.

[src/mess/machine]

md_slot.c md_slot.h md_svp.c md_svp.h

trunk/src/mess/machine/md_svp.c
r22023	r22024
314	314	//-------------------------------------------------
315	315
316	316	ADDRESS_MAP_START( md_svp_ssp_map, AS_PROGRAM, 16, md_rom_svp_device )
317		AM_RANGE(0x0000, 0x03ff) AM_READ(rom_read1)
318		AM_RANGE(0x0400, 0xffff) AM_READ(rom_read2)
319		// AM_RANGE(0x0000, 0x03ff) AM_ROMBANK("bank3")
320		// AM_RANGE(0x0400, 0xffff) AM_ROMBANK("bank4")
	317	// AM_RANGE(0x0000, 0x03ff) AM_READ(rom_read1)
	318	// AM_RANGE(0x0400, 0xffff) AM_READ(rom_read2)
	319	AM_RANGE(0x0000, 0x03ff) AM_ROMBANK("iram_svp")
	320	AM_RANGE(0x0400, 0xffff) AM_ROMBANK("cart_svp")
321	321	ADDRESS_MAP_END
322	322
323	323	//-------------------------------------------------
r22023	r22024
361	361	}
362	362
363	363
	364	void md_rom_svp_device::set_bank_to_rom(const char *banktag, UINT32 offset)
	365	{
	366	if (membank(banktag))
	367	membank(banktag)->set_base(m_rom + offset);
	368	}
	369
	370
364	371	void md_rom_svp_device::device_start()
365	372	{
366	373	memset(m_pmac_read, 0, ARRAY_LENGTH(m_pmac_read));
r22023	r22024
373	380	m_xst2 = 0;
374	381
375	382	/* SVP stuff */
	383	// DRAM
376	384	m_dram = auto_alloc_array(machine(), UINT8, 0x20000);
	385	// IRAM
377	386	m_iram = auto_alloc_array(machine(), UINT8, 0x800);
	387	this->membank("iram_svp")->set_base(m_iram);
	388	// the other bank, "cart_svp", is setup at call_load
378	389	}
379	390
380	391	READ16_MEMBER(md_rom_svp_device::read)

trunk/src/mess/machine/md_svp.h
r22023	r22024
24	24	virtual void device_config_complete() { m_shortname = "md_rom_svp"; }
25	25	virtual machine_config_constructor device_mconfig_additions() const;
26	26	virtual ioport_constructor device_input_ports() const;
	27	virtual void set_bank_to_rom(const char *banktag, UINT32 offset);
27	28
28	29	required_device<device_t> m_svp;
29	30	required_ioport m_test_ipt;

trunk/src/mess/machine/md_slot.c
r22023	r22024
335	335
336	336	if (res == IMAGE_INIT_PASS)
337	337	{
	338	//speed-up rom access from SVP add-on, if present
	339	if (m_type == SEGA_SVP)
	340	m_cart->set_bank_to_rom("cart_svp", 0x800/2);
	341
338	342	// STEP 3: install memory handlers for this type of cart
339	343	setup_custom_mappers();
340	344

trunk/src/mess/machine/md_slot.h
r22023	r22024
109	109	virtual UINT16* get_nvram_base() { return m_nvram; };
110	110	virtual UINT32 get_rom_size() { return m_rom_size; };
111	111	virtual UINT32 get_nvram_size() { return m_nvram_size; };
	112	virtual void set_bank_to_rom(const char *banktag, UINT32 offset) {};
112	113
113	114	void rom_map_setup(UINT32 size);
114	115	UINT32 get_padded_size(UINT32 size);

199869 Revisions