MAME SVN History

199869 Revisions

r30932 Tuesday 10th June, 2014 at 23:23:57 UTC by hap
(MESS) gb.c: Added GameBoy Pocket Boot ROM. [BennVenn]

[src/mess/drivers]	gb.c
[src/mess/includes]	gb.h
[src/mess/machine]	gb.c
[src/mess/video]	gb_lcd.c gb_lcd.h

trunk/src/mess/machine/gb.c
r30931	r30932
173	173	save_gb_base();
174	174	}
175	175
176		MACHINE_START_MEMBER(gb_state,gbpocket)
177		{
178		/* Allocate the serial timer, and disable it */
179		m_gb_serial_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(gb_state::gb_serial_timer_proc),this));
180		m_gb_serial_timer->enable( 0 );
181
182		save_gb_base();
183		}
184
185	176	MACHINE_START_MEMBER(gb_state,gbc)
186	177	{
187	178	/* Allocate the serial timer, and disable it */
r30931	r30932
222	213	m_divcount = 0x0004;
223	214	}
224	215
225		MACHINE_RESET_MEMBER(gb_state,gbpocket)
226		{
227		gb_init();
228
229		gb_init_regs();
230
231		m_bios_disable = 1;
232
233		/* Initialize the Sound registers */
234		m_custom->sound_w(generic_space(), 0x16, 0x80);
235		m_custom->sound_w(generic_space(), 0x15, 0xF3);
236		m_custom->sound_w(generic_space(), 0x14, 0x77);
237
238		m_divcount = 0xABC8;
239		}
240
241	216	MACHINE_RESET_MEMBER(gb_state,gbc)
242	217	{
243	218	gb_init();

trunk/src/mess/includes/gb.h
r30931	r30932
97	97	DECLARE_MACHINE_START(sgb);
98	98	DECLARE_MACHINE_RESET(sgb);
99	99	DECLARE_PALETTE_INIT(sgb);
100		DECLARE_MACHINE_START(gbpocket);
101		DECLARE_MACHINE_RESET(gbpocket);
102	100	DECLARE_PALETTE_INIT(gbp);
103	101	DECLARE_MACHINE_START(gbc);
104	102	DECLARE_MACHINE_RESET(gbc);

trunk/src/mess/video/gb_lcd.c
r30931	r30932
318	318	save_pointer(NAME(m_vram), 0x2000);
319	319
320	320	memcpy(m_oam, mgb_oam_fingerprint, 0x100);
321
322		/* Initialize part of VRAM. This code must be deleted when we have added the bios dump */
323		for (int i = 1; i < 0x0d; i++)
324		{
325		m_vram[0x1903 + i] = i;
326		m_vram[0x1923 + i] = i + 0x0C;
327		}
328		m_vram[0x1910] = 0x19;
329	321	}
330	322
331	323	void sgb_lcd_device::device_start()
r30931	r30932
369	361
370	362	memcpy(m_oam, cgb_oam_fingerprint, 0x100);
371	363
372
373	364	/* Background is initialised as white */
374	365	for (int i = 0; i < 32; i++)
375	366	m_cgb_bpal[i] = 32767;
r30931	r30932
449	440	m_lcd_timer->adjust(m_maincpu->cycles_to_attotime(456));
450	441	}
451	442
452		void mgb_lcd_device::device_reset()
453		{
454		address_space &space = m_maincpu->space(AS_PROGRAM);
455		common_reset();
456
457		/* Make sure the VBlank interrupt is set when the first instruction gets executed */
458		machine().scheduler().timer_set(m_maincpu->cycles_to_attotime(1), timer_expired_delegate(FUNC(mgb_lcd_device::video_init_vbl),this));
459
460		/* Initialize some video registers */
461		video_w(space, 0x0, 0x91); /* LCDCONT */
462		video_w(space, 0x7, 0xFC); /* BGRDPAL */
463		video_w(space, 0x8, 0xFC); /* SPR0PAL */
464		video_w(space, 0x9, 0xFC); /* SPR1PAL */
465
466		CURLINE = m_current_line = 0;
467		LCDSTAT = (LCDSTAT & 0xF8) \| 0x05;
468		m_mode = 1;
469
470		m_lcd_timer->adjust(m_maincpu->cycles_to_attotime(60), GB_LCD_STATE_LY00_M0);
471		}
472
473	443	void sgb_lcd_device::device_reset()
474	444	{
475	445	common_reset();
r30931	r30932
495	465	m_hdma_possible = 0;
496	466
497	467	m_gbc_mode = 1;
498
499	468	}
500	469
501	470

trunk/src/mess/video/gb_lcd.h
r30931	r30932
146	146
147	147	// device-level overrides
148	148	virtual void device_start();
149		virtual void device_reset();
150	149	};
151	150
152	151
r30931	r30932
211	210	MCFG_DEVICE_ADD( _tag, GB_LCD_CGB, 0 )
212	211
213	212
214		#endif /* GB_H_ */
	213	#endif /* GB_LCD_H_ */

trunk/src/mess/drivers/gb.c
r30931	r30932
806	806
807	807	static MACHINE_CONFIG_DERIVED( gbpocket, gameboy )
808	808
809		/* basic machine hardware */
810		MCFG_CPU_MODIFY("maincpu")
811		MCFG_LR35902_TIMER_CB( WRITE8( gb_state, gb_timer_callback ) )
812		MCFG_LR35902_HALT_BUG
813
814		MCFG_MACHINE_START_OVERRIDE(gb_state, gbpocket)
815		MCFG_MACHINE_RESET_OVERRIDE(gb_state, gbpocket)
816
817	809	/* video hardware */
818	810	MCFG_PALETTE_MODIFY("palette")
819	811	MCFG_PALETTE_INIT_OWNER(gb_state,gbp)

199869 Revisions