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r8487 Tuesday 13th July, 2010 at 12:50:20 UTC by Curt Coder
[PRESTIGE] Added memory banking and video.

[docs]	messnew.txt
[src/mess/drivers]	prestige.c

src/mess/drivers/prestige.c

r8486	r8487
10	10
11	11	#include "emu.h"
12	12	#include "cpu/z80/z80.h"
	13	#include "devices/messram.h"
13	14
	15	static UINT8 bank[6];
	16
	17	static READ8_HANDLER( bankswitch_r )
	18	{
	19	return bank[offset];
	20	}
	21
	22	static WRITE8_HANDLER( bankswitch_w )
	23	{
	24	const address_space *program = cputag_get_address_space(space->machine, "maincpu", ADDRESS_SPACE_PROGRAM);
	25
	26	switch (offset)
	27	{
	28	case 0:
	29	memory_set_bank(space->machine, "bank1", data & 0x3f);
	30	break;
	31
	32	case 1:
	33	memory_set_bank(space->machine, "bank2", data & 0x3f);
	34	break;
	35
	36	case 2:
	37	if (bank[5] == 0x0c)
	38	{
	39	memory_set_bank(space->machine, "bank3", 0x40 + BIT(data, 7));
	40	}
	41	else
	42	{
	43	memory_set_bank(space->machine, "bank3", data & 0x3f);
	44	}
	45	break;
	46
	47	case 3:
	48	memory_set_bank(space->machine, "bank4", data & 0x03);
	49	break;
	50
	51	case 4:
	52	memory_set_bank(space->machine, "bank5", data & 0x03);
	53	break;
	54
	55	case 5:
	56	if (data == 0x0c)
	57	{
	58	memory_install_readwrite_bank(program, 0x8000, 0xbfff, 0, 0, "bank3");
	59	}
	60	else
	61	{
	62	memory_unmap_write(program, 0x8000, 0xbfff, 0, 0);
	63	}
	64	}
	65
	66	bank[offset] = data;
	67	}
	68
14	69	static ADDRESS_MAP_START(prestige_mem, ADDRESS_SPACE_PROGRAM, 8)
15		ADDRESS_MAP_UNMAP_HIGH
16		AM_RANGE(0x0000, 0x7fff) AM_ROM
	70	AM_RANGE(0x0000, 0x3fff) AM_ROMBANK("bank1")
	71	AM_RANGE(0x4000, 0x7fff) AM_ROMBANK("bank2")
	72	AM_RANGE(0x8000, 0xbfff) AM_ROMBANK("bank3")
	73	AM_RANGE(0xc000, 0xdfff) AM_RAMBANK("bank4")
	74	AM_RANGE(0xe000, 0xffff) AM_RAMBANK("bank5")
17	75	ADDRESS_MAP_END
18	76
19	77	static ADDRESS_MAP_START( prestige_io , ADDRESS_SPACE_IO, 8)
20	78	ADDRESS_MAP_UNMAP_HIGH
	79	ADDRESS_MAP_GLOBAL_MASK(0xff)
	80	AM_RANGE(0x50, 0x55) AM_READWRITE(bankswitch_r, bankswitch_w)
21	81	ADDRESS_MAP_END
22	82
23	83	/* Input ports */
r8486	r8487
25	85	INPUT_PORTS_END
26	86
27	87
28		static MACHINE_RESET(prestige)
	88	static MACHINE_START(prestige)
29	89	{
	90	UINT8 *ram = messram_get_ptr(machine->device("messram"));
	91
	92	memory_configure_bank(machine, "bank1", 0, 64, memory_region(machine, "maincpu"), 0x4000);
	93	memory_configure_bank(machine, "bank2", 0, 64, memory_region(machine, "maincpu"), 0x4000);
	94	memory_configure_bank(machine, "bank3", 0, 64, memory_region(machine, "maincpu"), 0x4000);
	95	memory_configure_bank(machine, "bank3", 64, 2, ram + 0x8000, 0x4000);
	96	memory_configure_bank(machine, "bank4", 0, 4, ram, 0x2000);
	97	memory_configure_bank(machine, "bank5", 0, 4, ram, 0x2000);
	98
	99	memory_set_bank(machine, "bank1", 0);
	100	memory_set_bank(machine, "bank2", 0);
	101	memory_set_bank(machine, "bank3", 0);
	102	memory_set_bank(machine, "bank4", 0);
	103	memory_set_bank(machine, "bank5", 0);
30	104	}
31	105
	106	static PALETTE_INIT( prestige )
	107	{
	108	palette_set_color(machine, 0, MAKE_RGB(39, 108, 51));
	109	palette_set_color(machine, 1, MAKE_RGB(16, 37, 84));
	110	}
	111
32	112	static VIDEO_START( prestige )
33	113	{
34	114	}
35	115
36	116	static VIDEO_UPDATE( prestige )
37	117	{
	118	const address_space *program = cputag_get_address_space(screen->machine, "maincpu", ADDRESS_SPACE_PROGRAM);
	119	UINT16 addr = 0xe000;
	120
	121	for (int y = 0; y < 100; y++)
	122	{
	123	for (int sx = 0; sx < 30; sx++)
	124	{
	125	UINT8 data = memory_read_byte(program, addr);
	126
	127	for (int x = 0; x < 8; x++)
	128	{
	129	*BITMAP_ADDR16(bitmap, y, (sx * 8) + x) = BIT(data, 7);
	130
	131	data <<= 1;
	132	}
	133
	134	addr++;
	135	}
	136	}
	137
38	138	return 0;
39	139	}
40	140
r8486	r8487
44	144	MDRV_CPU_PROGRAM_MAP(prestige_mem)
45	145	MDRV_CPU_IO_MAP(prestige_io)
46	146
47		MDRV_MACHINE_RESET(prestige)
	147	MDRV_MACHINE_START(prestige)
48	148
49	149	/* video hardware */
50	150	MDRV_SCREEN_ADD("screen", LCD)
r8486	r8487
56	156	MDRV_DEFAULT_LAYOUT( layout_lcd )
57	157
58	158	MDRV_PALETTE_LENGTH(2)
59		MDRV_PALETTE_INIT(black_and_white)
	159	MDRV_PALETTE_INIT(prestige)
60	160
61	161	MDRV_VIDEO_START(prestige)
62	162	MDRV_VIDEO_UPDATE(prestige)
	163
	164	/* internal ram */
	165	MDRV_RAM_ADD("messram")
	166	MDRV_RAM_DEFAULT_SIZE("64K")
63	167	MACHINE_DRIVER_END
64	168
65	169	/* ROM definition */
r8486	r8487
71	175	/* Driver */
72	176
73	177	/*    YEAR  NAME    PARENT  COMPAT   MACHINE    INPUT    INIT    COMPANY   FULLNAME       FLAGS */
74		COMP( 1998, prestige,  0,       0,   prestige,    prestige,     0,  "VTech",   "PreComputer Prestige",      GAME_NOT_WORKING | GAME_NO_SOUND)
	178	COMP( 1998, prestige,  0,       0,   prestige,    prestige,     0,  "VTech",   "PC Prestige Elite",      GAME_NOT_WORKING | GAME_NO_SOUND)

docs/messnew.txt

r8486	r8487
19	19	Skeleton drivers:
20	20	-----------------
21	21	- Salora Manager [Curt Coder]
22		- VTech PreComputer Prestige [Joseba Epalza, Curt Coder]
	22	- VTech PC Prestige Elite [Joseba Epalza, Curt Coder]
23	23	- Casio PV-2000
24	24	- Sony SMC-777
25	25	- Mitsubishi Multi 8

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