MAME SVN History

199869 Revisions

r30854 Thursday 5th June, 2014 at 21:06:53 UTC by hap
get rid of unneeded handler

[src/mess/drivers]	ngp.c
[src/mess/video]	k1ge.c k1ge.h

trunk/src/mess/video/k1ge.c
r30853	r30854
1	1	/******************************************************************************
2	2
3		K1GE/K2GE graphics emulation
	3	K1GE/K2GE graphics emulation
4	4
5		The K1GE graphics were used in the Neogeo pocket mono; the K2GE graphics were
6		used in the Neogeo pocket color.
	5	The K1GE graphics were used in the Neogeo pocket mono; the K2GE graphics were
	6	used in the Neogeo pocket color.
7	7
8	8	******************************************************************************/
9	9
r30853	r30854
41	41	}
42	42
43	43
44		READ8_MEMBER( k1ge_device::re~~g_re~~ad )
	44	READ8_MEMBER( k1ge_device::read )
45	45	{
46		UINT8 data = m_vram[offset & 0x7ff];
	46	assert(offset < 0x4000);
	47
	48	UINT8 data = m_vram[offset];
47	49
48	50	switch( offset )
49	51	{
r30853	r30854
58	60	}
59	61
60	62
61		WRITE8_MEMBER( k1ge_device::~~reg_~~write )
	63	WRITE8_MEMBER( k1ge_device::write )
62	64	{
	65	assert(offset < 0x4000);
	66
63	67	switch( offset )
64	68	{
65	69	case 0x000:
r30853	r30854
77	81	data &= 0x07;
78	82	break;
79	83	case 0x7e2:
80		if ( m_vram[0x7f0] != 0xAA )
	84	if ( m_vram[0x7f0] != 0xaa )
81	85	return;
82	86	data &= 0x80;
83	87	break;
r30853	r30854
89	93	data &= 0x0f;
90	94	}
91	95
92		m_vram[offset ~~& 0x7ff~~] = data;
	96	m_vram[offset] = data;
93	97	}
94	98
95		// TODO: these i/o handlers can probably be merged with the above...
96		READ8_MEMBER( k1ge_device::vram_read )
97		{
98		assert(offset < 0x3800);
99		return m_vram[0x800 + offset];
100		}
101	99
102
103		WRITE8_MEMBER( k1ge_device::vram_write )
104		{
105		assert(offset < 0x3800);
106		m_vram[0x800 + offset] = data;
107		}
108
109
110	100	void k1ge_device::draw_scroll_plane( UINT16 *p, UINT16 base, int line, int scroll_x, int scroll_y, int pal_base )
111	101	{
112	102	int i;
r30853	r30854
888	878	}
889	879
890	880	static MACHINE_CONFIG_FRAGMENT( k1ge )
891		MCFG_PALETTE_ADD("palette", 8 )
	881	MCFG_PALETTE_ADD("palette", 8 )
892	882	MCFG_PALETTE_INIT_OWNER(k1ge_device, k1ge)
893	883	MACHINE_CONFIG_END
894	884
r30853	r30854
911	901	}
912	902
913	903	static MACHINE_CONFIG_FRAGMENT( k2ge )
914		MCFG_PALETTE_ADD("palette", 4096 )
	904	MCFG_PALETTE_ADD("palette", 4096 )
915	905	MCFG_PALETTE_INIT_OWNER(k2ge_device, k2ge)
916	906	MACHINE_CONFIG_END
917	907

trunk/src/mess/video/k1ge.h
r30853	r30854
	1	/******************************************************************************
1	2
	3	K1GE/K2GE graphics emulation
	4
	5	******************************************************************************/
	6
2	7	#ifndef __K2GE_H_
3	8	#define __K2GE_H_
4	9
r30853	r30854
23	28	k1ge_device(const machine_config &mconfig, const char tag, device_t owner, UINT32 clock);
24	29	k1ge_device(const machine_config &mconfig, device_type type, const char name, const char tag, device_t owner, UINT32 clock, const char shortname, const char *source);
25	30
26		DECLARE_READ8_MEMBER( reg_read );
27		DECLARE_WRITE8_MEMBER( reg_write );
28		DECLARE_READ8_MEMBER( vram_read );
29		DECLARE_WRITE8_MEMBER( vram_write );
	31	DECLARE_READ8_MEMBER( read );
	32	DECLARE_WRITE8_MEMBER( write );
30	33
31	34	DECLARE_PALETTE_INIT(k1ge);
32	35

trunk/src/mess/drivers/ngp.c
r30853	r30854
538	538
539	539
540	540	static ADDRESS_MAP_START( ngp_mem, AS_PROGRAM, 8, ngp_state )
541		AM_RANGE( 0x000080, 0x0000bf ) AM_READWRITE(ngp_io_r, ngp_io_w) /* ngp/c specific i/o */
542		AM_RANGE( 0x004000, 0x006fff ) AM_RAM AM_SHARE("mainram") /* work ram */
543		AM_RANGE( 0x007000, 0x007fff ) AM_RAM AM_SHARE("share1") /* shared with sound cpu */
544		AM_RANGE( 0x008000, 0x0087ff ) AM_DEVREADWRITE("k1ge", k1ge_device, reg_read, reg_write) /* video registers */
545		AM_RANGE( 0x008800, 0x00bfff ) AM_DEVREADWRITE("k1ge", k1ge_device, vram_read, vram_write) /* Video RAM area */
546		AM_RANGE( 0x200000, 0x3fffff ) AM_ROM AM_WRITE(flash0_w) AM_REGION("cart", 0) /* cart area #1 */
547		AM_RANGE( 0x800000, 0x9fffff ) AM_ROM AM_WRITE(flash1_w) AM_REGION("cart", 0x200000) /* cart area #2 */
548		AM_RANGE( 0xff0000, 0xffffff ) AM_ROM AM_REGION("maincpu", 0) /* system rom */
	541	AM_RANGE( 0x000080, 0x0000bf ) AM_READWRITE(ngp_io_r, ngp_io_w) /* ngp/c specific i/o */
	542	AM_RANGE( 0x004000, 0x006fff ) AM_RAM AM_SHARE("mainram") /* work ram */
	543	AM_RANGE( 0x007000, 0x007fff ) AM_RAM AM_SHARE("share1") /* shared with sound cpu */
	544	AM_RANGE( 0x008000, 0x00bfff ) AM_DEVREADWRITE("k1ge", k1ge_device, read, write) /* video chip */
	545	AM_RANGE( 0x200000, 0x3fffff ) AM_ROM AM_WRITE(flash0_w) AM_REGION("cart", 0) /* cart area #1 */
	546	AM_RANGE( 0x800000, 0x9fffff ) AM_ROM AM_WRITE(flash1_w) AM_REGION("cart", 0x200000) /* cart area #2 */
	547	AM_RANGE( 0xff0000, 0xffffff ) AM_ROM AM_REGION("maincpu", 0) /* system rom */
549	548	ADDRESS_MAP_END
550	549
551	550
r30853	r30854
568	567
569	568
570	569	static ADDRESS_MAP_START( z80_mem, AS_PROGRAM, 8, ngp_state )
571		AM_RANGE( 0x0000, 0x0FFF ) AM_RAM AM_SHARE("share1") /* shared with tlcs900 */
572		AM_RANGE( 0x4000, 0x4001 ) AM_DEVWRITE("t6w28", t6w28_device, write ) /* sound chip (right, left) */
	570	AM_RANGE( 0x0000, 0x0fff ) AM_RAM AM_SHARE("share1") /* shared with tlcs900 */
	571	AM_RANGE( 0x4000, 0x4001 ) AM_DEVWRITE("t6w28", t6w28_device, write ) /* sound chip (right, left) */
573	572	AM_RANGE( 0x8000, 0x8000 ) AM_READWRITE( ngp_z80_comm_r, ngp_z80_comm_w ) /* main-sound communication */
574	573	AM_RANGE( 0xc000, 0xc000 ) AM_WRITE( ngp_z80_signal_main_w ) /* signal irq to main cpu */
575	574	ADDRESS_MAP_END

199869 Revisions