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r6764 Saturday 26th December, 2009 at 08:08:33 UTC by Robbbert
Added F4 character displayer

[src/mess/drivers]

unior.c unistar.c vg5k.c

src/mess/drivers/unistar.c

r6763	r6764
37	37	return 0;
38	38	}
39	39
	40	/* F4 Character Displayer */
	41	static const gfx_layout unistar_charlayout =
	42	{
	43	8, 16,               /* 8 x 16 characters */
	44	128,               /* 128 characters */
	45	1,               /* 1 bits per pixel */
	46	{ 0 },               /* no bitplanes */
	47	/* x offsets */
	48	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	49	/* y offsets */
	50	{  0*8,  1*8,  2*8,  3*8,  4*8,  5*8,  6*8,  7*8, 8*8,  9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
	51	8*16               /* every char takes 16 bytes */
	52	};
	53
	54	static GFXDECODE_START( unistar )
	55	GFXDECODE_ENTRY( "gfx", 0x0000, unistar_charlayout, 0, 1 )
	56	GFXDECODE_END
	57
40	58	static MACHINE_DRIVER_START( unistar )
41	59	/* basic machine hardware */
42	60	MDRV_CPU_ADD("maincpu",8085A, XTAL_2MHz)
r6763	r6764
52	70	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
53	71	MDRV_SCREEN_SIZE(640, 480)
54	72	MDRV_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1)
	73	MDRV_GFXDECODE(unistar)
55	74	MDRV_PALETTE_LENGTH(2)
56	75	MDRV_PALETTE_INIT(black_and_white)
57	76

src/mess/drivers/unior.c

r6763	r6764
37	37	return 0;
38	38	}
39	39
	40	/* F4 Character Displayer */
	41	static const gfx_layout unior_charlayout =
	42	{
	43	8, 8,               /* 8 x 8 characters */
	44	256,               /* 256 characters */
	45	1,               /* 1 bits per pixel */
	46	{ 0 },               /* no bitplanes */
	47	/* x offsets */
	48	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	49	/* y offsets */
	50	{  0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	51	8*8               /* every char takes 8 bytes */
	52	};
	53
	54	static GFXDECODE_START( unior )
	55	GFXDECODE_ENTRY( "gfx1", 0x0000, unior_charlayout, 0, 1 )
	56	GFXDECODE_END
	57
40	58	static MACHINE_DRIVER_START( unior )
41	59	/* basic machine hardware */
42	60	MDRV_CPU_ADD("maincpu",8080, 2222222)
r6763	r6764
52	70	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
53	71	MDRV_SCREEN_SIZE(640, 480)
54	72	MDRV_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1)
	73	MDRV_GFXDECODE(unior)
55	74	MDRV_PALETTE_LENGTH(2)
56	75	MDRV_PALETTE_INIT(black_and_white)
57	76

src/mess/drivers/vg5k.c

r6763	r6764
68	68	return 0;
69	69	}
70	70
	71	/* F4 Character Displayer */
	72	static const gfx_layout vg5k_charlayout =
	73	{
	74	8, 16,               /* 8 x 16 characters */
	75	256,               /* 256 characters */
	76	1,               /* 1 bits per pixel */
	77	{ 0 },               /* no bitplanes */
	78	/* x offsets */
	79	{ 7, 6, 5, 4, 3, 2, 1, 0 },
	80	/* y offsets */
	81	{ 0, 8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
	82	8*16               /* every char takes 16 bytes */
	83	};
	84
	85	static GFXDECODE_START( vg5k )
	86	GFXDECODE_ENTRY( "gfx1", 0x2000, vg5k_charlayout, 0, 4 )
	87	GFXDECODE_END
	88
	89	static DRIVER_INIT( vg5k )
	90	{
	91	UINT8 *FNT = memory_region(machine, "gfx1");
	92	UINT16 a,b,c,d,dest=0x2000;
	93
	94	/* Unscramble the chargen rom as the format is too complex for gfxdecode to handle unaided */
	95	for (a = 0; a < 8192; a+=4096)
	96	for (b = 0; b < 2048; b+=64)
	97	for (c = 0; c < 4; c++)
	98	for (d = 0; d < 64; d+=4)
	99	FNT[dest++]=FNT[a|b|c|d];
	100	}
	101
71	102	static MACHINE_DRIVER_START( vg5k )
72	103	/* basic machine hardware */
73	104	MDRV_CPU_ADD("maincpu",Z80, XTAL_4MHz)
r6763	r6764
83	114	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
84	115	MDRV_SCREEN_SIZE(640, 480)
85	116	MDRV_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1)
	117
	118	MDRV_GFXDECODE(vg5k)
86	119	MDRV_PALETTE_LENGTH(8)
87	120
88	121	MDRV_VIDEO_START(vg5k)
r6763	r6764
101	134	ROM_SYSTEM_BIOS(1, "alt", "VG 5000 (alt)")
102	135	ROMX_LOAD( "vg5k.rom", 0x0000, 0x4000, BAD_DUMP CRC(a6f4a0ea) SHA1(58eccce33cc21fc17bc83921018f531b8001eda3), ROM_BIOS(2) )   // from dcvg5k
103	136
104		ROM_REGION( 0x2000, "gfx1", 0 )
	137	ROM_REGION( 0x4000, "gfx1", 0 )
105	138	ROM_LOAD( "charset.rom", 0x0000, 0x2000, BAD_DUMP CRC(b2f49eb3) SHA1(d0ef530be33bfc296314e7152302d95fdf9520fc) )         // from dcvg5k
106	139	ROM_END
107	140
108	141	/* Driver */
109	142	/*    YEAR  NAME    PARENT  COMPAT  MACHINE  INPUT  INIT   COMPANY     FULLNAME   FLAGS */
110		COMP( 1984, vg5k,   0,      0,      vg5k,    vg5k,  0,    "Philips",  "VG-5000", GAME_NOT_WORKING)
	143	COMP( 1984, vg5k,   0,      0,      vg5k,    vg5k,  vg5k, "Philips",  "VG-5000", GAME_NOT_WORKING)

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