MAME SVN History

199869 Revisions

r21101 Friday 15th February, 2013 at 19:59:15 UTC by Wilbert Pol
(MESS) pc4.c: Reduce tagmap lookups (nw)

trunk/src/mess/includes/pc4.h
r21100	r21101
16	16	{
17	17	public:
18	18	pc4_state(const machine_config &mconfig, device_type type, const char *tag)
19		: driver_device(mconfig, type, tag),
20		m_maincpu(*this, "maincpu"),
21		m_beep(*this, BEEPER_TAG)
22		{ }
	19	: driver_device(mconfig, type, tag)
	20	, m_maincpu(*this, "maincpu")
	21	, m_beep(*this, BEEPER_TAG)
	22	, m_region_charset(*this, "charset")
	23	, m_rombank(*this, "rombank")
	24	{ }
23	25
24	26	required_device<cpu_device> m_maincpu;
25	27	required_device<beep_device> m_beep;
r21100	r21101
63	65	INT8 m_direction;
64	66	UINT8 m_blink;
65	67	virtual void palette_init();
	68
	69	protected:
	70	required_memory_region m_region_charset;
	71	required_memory_bank m_rombank;
	72	ioport_port *io_port[8];
66	73	};
67	74
68	75	#endif // _PC4_H_

trunk/src/mess/video/pc4.c
r21100	r21101
33	33	else
34	34	{
35	35	//draw CGROM characters
36		bitmap.pix16(l9 + y, i6 + x) = BIT(m~~achine().root~~_~~device().mem~~region("charset")->base()[m_ddram[char_pos]*8+y], 4-x);
	36	bitmap.pix16(l9 + y, i6 + x) = BIT(m_region_charset->base()[m_ddram[char_pos]*8+y], 4-x);
37	37
38	38	}
39	39

trunk/src/mess/drivers/pc4.c
r21100	r21101
31	31
32	32	READ8_MEMBER( pc4_state::kb_r )
33	33	{
34		static const char *const bitnames[] = {"LINE0", "LINE1", "LINE2", "LINE3", "LINE4", "LINE5", "LINE6", "LINE7"};
35	34	UINT8 data = 0xff;
36	35
37	36	for (int line=0; line<8; line++)
	37	{
38	38	if (!(offset & (1<<line)))
39		data &= ioport(bitnames[line])->read();
	39	{
	40	data &= io_port[line]->read();
	41	}
	42	}
40	43
41	44	return data;
42	45	}
r21100	r21101
44	47	WRITE8_MEMBER( pc4_state::bank_w )
45	48	{
46	49	//printf("set bank %x\n", data);
47		m~~embank("~~rombank")->set_entry(data&0x07);
	50	m_rombank->set_entry(data&0x07);
48	51	}
49	52
50	53	WRITE8_MEMBER( pc4_state::beep_w )
r21100	r21101
179	182
180	183	void pc4_state::machine_start()
181	184	{
182		UINT8* rom_base = (UINT8 *)machine().root_device().memregion("maincpu")->base();
	185	static const char *const bitnames[] = {"LINE0", "LINE1", "LINE2", "LINE3", "LINE4", "LINE5", "LINE6", "LINE7"};
	186	UINT8* rom_base = (UINT8 *)memregion("maincpu")->base();
183	187
184		membank("rombank")->configure_entries(0, 8, rom_base, 0x4000);
185		membank("rombank")->set_entry(0);
	188	m_rombank->configure_entries(0, 8, rom_base, 0x4000);
	189	m_rombank->set_entry(0);
186	190
187	191	m_busy_timer = timer_alloc(BUSY_TIMER);
188	192	m_blink_timer = timer_alloc(BLINKING_TIMER);
189	193	m_blink_timer->adjust(attotime::from_msec(409), 0, attotime::from_msec(409));
190	194
	195	for (int i=0; i<8; i++)
	196	{
	197	io_port[i] = ioport(bitnames[i]);
	198	}
	199
191	200	m_ac = 0;
192	201	m_ac_mode = 0;
193	202	m_data_bus_flag = 0;

199869 Revisions