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r18216 Sunday 30th September, 2012 at 18:31:46 UTC by Angelo Salese
Written up a skeleton driver for the Korg M1, based off some manual info found through the net, nw
[src/mess/drivers]korgm1.c*

trunk/src/mess/drivers/korgm1.c
r0r18216
1/***************************************************************************
2
3   Korg M1 (c) 1988
4
5   skeleton driver
6
7   Note: driver isn't yet hooked up to mess.lst / mess.mak, until a ROM
8   dump is found.
9
10***************************************************************************/
11
12
13#include "emu.h"
14#include "cpu/nec/nec.h"
15//#include "sound/ay8910.h"
16
17#define MAIN_CLOCK XTAL_16MHz // Unknown clock
18
19class korgm1_state : public driver_device
20{
21public:
22   korgm1_state(const machine_config &mconfig, device_type type, const char *tag)
23      : driver_device(mconfig, type, tag),
24        m_maincpu(*this, "maincpu")
25   { }
26
27   // devices
28   required_device<cpu_device> m_maincpu;
29
30   // screen updates
31   UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
32
33protected:
34   // driver_device overrides
35   virtual void machine_start();
36   virtual void machine_reset();
37
38   virtual void video_start();
39   virtual void palette_init();
40};
41
42void korgm1_state::video_start()
43{
44
45}
46
47UINT32 korgm1_state::screen_update( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect )
48{
49   return 0;
50}
51
52static ADDRESS_MAP_START( korgm1_map, AS_PROGRAM, 16, korgm1_state )
53   AM_RANGE(0x00000, 0x0ffff) AM_RAM // 64 KB
54//   AM_RANGE(0x50000, 0x57fff) AM_RAM // memory card 32 KB
55   AM_RANGE(0xe0000, 0xfffff) AM_ROM AM_REGION("ipl", 0)
56ADDRESS_MAP_END
57
58static ADDRESS_MAP_START( korgm1_io, AS_IO, 16, korgm1_state )
59//   AM_RANGE(0x0000, 0x00ff) internal peripheral (?)
60//   AM_RANGE(0x0100, 0x01ff) VDF 1 (MB87404)
61//   AM_RANGE(0x0200, 0x02ff) VDF 2 (MB87404)
62//   AM_RANGE(0x0500, 0x0503) MDE (MB87405)
63//   AM_RANGE(0x0600, 0x0601) OPZ 1 (8-bit port)
64//   AM_RANGE(0x0700, 0x0701) OPZ 2 (8-bit port)
65//   AM_RANGE(0x0800, 0x0801) SCAN (8-bit port) (keyboard)
66//   AM_RANGE(0x0900, 0x09??) A/D Converter (M58990P, Joystick, "value" and After Touch routes here) **
67//   AM_RANGE(0x0a00, 0x0a03) PPI (CXD1095, presumably i8255 compatible, LCD, LED and SW routes here) *
68//   AM_RANGE(0x0b00, 0x0b01) LCDC (8-bit port)
69//   AM_RANGE(0x1000, 0x11ff) TG (MB87402)
70//   AM_RANGE(0x2000, 0x23ff) SCSI
71//   AM_RANGE(0x3000, 0x33ff) FDC
72//  TG 2?
73ADDRESS_MAP_END
74
75// * Rail Chase 2 shares this (iocpu)
76// ** Lock-On shares this
77
78static INPUT_PORTS_START( korgm1 )
79   /* dummy active high structure */
80   PORT_START("SYSA")
81   PORT_DIPNAME( 0x01, 0x00, "SYSA" )
82   PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
83   PORT_DIPSETTING(    0x01, DEF_STR( On ) )
84   PORT_DIPNAME( 0x02, 0x00, DEF_STR( Unknown ) )
85   PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
86   PORT_DIPSETTING(    0x02, DEF_STR( On ) )
87   PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) )
88   PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
89   PORT_DIPSETTING(    0x04, DEF_STR( On ) )
90   PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) )
91   PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
92   PORT_DIPSETTING(    0x08, DEF_STR( On ) )
93   PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) )
94   PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
95   PORT_DIPSETTING(    0x10, DEF_STR( On ) )
96   PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) )
97   PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
98   PORT_DIPSETTING(    0x20, DEF_STR( On ) )
99   PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) )
100   PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
101   PORT_DIPSETTING(    0x40, DEF_STR( On ) )
102   PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) )
103   PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
104   PORT_DIPSETTING(    0x80, DEF_STR( On ) )
105
106   /* dummy active low structure */
107   PORT_START("DSWA")
108   PORT_DIPNAME( 0x01, 0x01, "DSWA" )
109   PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
110   PORT_DIPSETTING(    0x00, DEF_STR( On ) )
111   PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
112   PORT_DIPSETTING(    0x02, DEF_STR( Off ) )
113   PORT_DIPSETTING(    0x00, DEF_STR( On ) )
114   PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
115   PORT_DIPSETTING(    0x04, DEF_STR( Off ) )
116   PORT_DIPSETTING(    0x00, DEF_STR( On ) )
117   PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
118   PORT_DIPSETTING(    0x08, DEF_STR( Off ) )
119   PORT_DIPSETTING(    0x00, DEF_STR( On ) )
120   PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) )
121   PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
122   PORT_DIPSETTING(    0x00, DEF_STR( On ) )
123   PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) )
124   PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
125   PORT_DIPSETTING(    0x00, DEF_STR( On ) )
126   PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) )
127   PORT_DIPSETTING(    0x40, DEF_STR( Off ) )
128   PORT_DIPSETTING(    0x00, DEF_STR( On ) )
129   PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
130   PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
131   PORT_DIPSETTING(    0x00, DEF_STR( On ) )
132INPUT_PORTS_END
133
134#if 0
135static const gfx_layout charlayout =
136{
137   8,8,
138   RGN_FRAC(1,1),
139   1,
140   { RGN_FRAC(0,1) },
141   { 0, 1, 2, 3, 4, 5, 6, 7 },
142   { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
143   8*8
144};
145#endif
146
147static GFXDECODE_START( korgm1 )
148//   GFXDECODE_ENTRY( "gfx1", 0, charlayout,     0, 1 )
149GFXDECODE_END
150
151
152void korgm1_state::machine_start()
153{
154}
155
156void korgm1_state::machine_reset()
157{
158}
159
160
161void korgm1_state::palette_init()
162{
163}
164
165static MACHINE_CONFIG_START( korgm1, korgm1_state )
166
167   /* basic machine hardware */
168   MCFG_CPU_ADD("maincpu",V30,MAIN_CLOCK) // V50 actually
169   MCFG_CPU_PROGRAM_MAP(korgm1_map)
170   MCFG_CPU_IO_MAP(korgm1_io)
171
172   /* video hardware */
173   /* TODO: LCD actually */
174   MCFG_SCREEN_ADD("screen", RASTER)
175   MCFG_SCREEN_REFRESH_RATE(60)
176   MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500))
177   MCFG_SCREEN_UPDATE_DRIVER(korgm1_state, screen_update)
178   MCFG_SCREEN_SIZE(32*8, 32*8)
179   MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1)
180
181   MCFG_GFXDECODE(korgm1)
182
183   MCFG_PALETTE_LENGTH(8)
184
185   /* sound hardware */
186   MCFG_SPEAKER_STANDARD_MONO("mono")
187//  MCFG_SOUND_ADD("aysnd", AY8910, MAIN_CLOCK/4)
188//  MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30)
189MACHINE_CONFIG_END
190
191
192/***************************************************************************
193
194  Game driver(s)
195
196***************************************************************************/
197
198ROM_START( korgm1 )
199   ROM_REGION( 0x20000, "ipl", ROMREGION_ERASE00 )
200   ROM_LOAD( "bios.rom", 0x00000, 0x20000, NO_DUMP )
201
202   ROM_REGION( 0x200000, "pcm", ROMREGION_ERASE00 )
203   ROM_LOAD( "pcm.rom", 0x00000, 0x200000, NO_DUMP )
204
205//   ROM_REGION( 0x10000, "gfx1", ROMREGION_ERASE00 )
206ROM_END
207
208GAME( 1988, korgm1,  0,   korgm1,  korgm1,  0,       ROT0, "Korg",      "M1", GAME_IS_SKELETON )

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