1 /****************************************************************************
2
3 Safari Rally by SNK/Taito
4
5 Driver by Zsolt Vasvari
6
7
8 This hardware is a precursor to Phoenix.
9
10 ----------------------------------
11
12 CPU board
13
14 76477 18MHz
15
16 8080
17
18 Video board
19
20
21 RL07 2114
22 2114
23 2114
24 2114
25 2114 RL01 RL02
26 2114 RL03 RL04
27 2114 RL05 RL06
28 RL08 2114
29
30 11MHz
31
32 ----------------------------------
33
34 TODO:
35
36 - SN76477 sound
37
38 ****************************************************************************/
39
40 #include "driver.h"
41
42
43 unsigned char *safarir_ram1, *safarir_ram2;
44 size_t safarir_ram_size;
45
46 static unsigned char *safarir_ram;
47 static int safarir_scroll;
48
49
50
WRITE_HANDLER(safarir_ram_w)51 WRITE_HANDLER( safarir_ram_w )
52 {
53 safarir_ram[offset] = data;
54 }
55
READ_HANDLER(safarir_ram_r)56 READ_HANDLER( safarir_ram_r )
57 {
58 return safarir_ram[offset];
59 }
60
61
WRITE_HANDLER(safarir_scroll_w)62 WRITE_HANDLER( safarir_scroll_w )
63 {
64 safarir_scroll = data;
65 }
66
WRITE_HANDLER(safarir_ram_bank_w)67 WRITE_HANDLER( safarir_ram_bank_w )
68 {
69 safarir_ram = data ? safarir_ram1 : safarir_ram2;
70 }
71
72
safarir_vh_screenrefresh(struct osd_bitmap * bitmap,int full_refresh)73 void safarir_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh)
74 {
75 int offs;
76
77
78 for (offs = safarir_ram_size/2 - 1;offs >= 0;offs--)
79 {
80 int sx,sy;
81 UINT8 code;
82
83
84 sx = offs % 32;
85 sy = offs / 32;
86
87 code = safarir_ram[offs + safarir_ram_size/2];
88
89
90 drawgfx(bitmap,Machine->gfx[0],
91 code & 0x7f,
92 code >> 7,
93 0,0,
94 (8*sx - safarir_scroll) & 0xff,8*sy,
95 &Machine->visible_area,TRANSPARENCY_NONE,0);
96 }
97
98
99 /* draw the frontmost playfield. They are characters, but draw them as sprites */
100
101 for (offs = safarir_ram_size/2 - 1;offs >= 0;offs--)
102 {
103 int sx,sy,transparency;
104 UINT8 code;
105
106
107 sx = offs % 32;
108 sy = offs / 32;
109
110 code = safarir_ram[offs];
111
112 transparency = (sx >= 3) ? TRANSPARENCY_PEN : TRANSPARENCY_NONE;
113
114
115 drawgfx(bitmap,Machine->gfx[1],
116 code & 0x7f,
117 code >> 7,
118 0,0,
119 8*sx,8*sy,
120 &Machine->visible_area,transparency,0);
121 }
122 }
123
124
125 static unsigned char palette[] =
126 {
127 0x00,0x00,0x00, /* black */
128 0x80,0x80,0x80, /* gray */
129 0xff,0xff,0xff, /* white */
130 };
131 static unsigned short colortable[] =
132 {
133 0x00, 0x01,
134 0x00, 0x02,
135 };
136
init_palette(unsigned char * game_palette,unsigned short * game_colortable,const unsigned char * color_prom)137 static void init_palette(unsigned char *game_palette, unsigned short *game_colortable,const unsigned char *color_prom)
138 {
139 memcpy(game_palette,palette,sizeof(palette));
140 memcpy(game_colortable,colortable,sizeof(colortable));
141 }
142
143
144 static struct MemoryReadAddress readmem[] =
145 {
146 { 0x0000, 0x17ff, MRA_ROM },
147 { 0x2000, 0x27ff, safarir_ram_r },
148 { 0x3800, 0x38ff, input_port_0_r },
149 { 0x3c00, 0x3cff, input_port_1_r },
150 { -1 } /* end of table */
151 };
152
153 static struct MemoryWriteAddress writemem[] =
154 {
155 { 0x0000, 0x17ff, MWA_ROM },
156 { 0x2000, 0x27ff, safarir_ram_w, &safarir_ram1, &safarir_ram_size },
157 { 0x2800, 0x28ff, safarir_ram_bank_w },
158 { 0x2c00, 0x2cff, safarir_scroll_w },
159 { 0x3000, 0x30ff, MWA_NOP }, /* goes to SN76477 */
160
161 { 0x8000, 0x87ff, MWA_NOP, &safarir_ram2 }, /* only here to initialize pointer */
162 { -1 } /* end of table */
163 };
164
165
166 INPUT_PORTS_START( safarir )
167 PORT_START /* IN0 */
168 PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
169 PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START1 )
170 PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START2 )
171 PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
172 PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
173 PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_2WAY )
174 PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_2WAY )
175 PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
176
177 PORT_START /* DSW0 */
178 PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives ) )
179 PORT_DIPSETTING( 0x00, "3" )
180 PORT_DIPSETTING( 0x01, "4" )
181 PORT_DIPSETTING( 0x02, "5" )
182 PORT_DIPSETTING( 0x03, "6" )
183 PORT_DIPNAME( 0x0c, 0x04, "Acceleration Rate" )
184 PORT_DIPSETTING( 0x00, "Slowest" )
185 PORT_DIPSETTING( 0x04, "Slow" )
186 PORT_DIPSETTING( 0x08, "Fast" )
187 PORT_DIPSETTING( 0x0c, "Fastest" )
188 PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) )
189 PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
190 PORT_DIPSETTING( 0x10, DEF_STR( On ) )
191 PORT_DIPNAME( 0x60, 0x00, DEF_STR( Bonus_Life ) )
192 PORT_DIPSETTING( 0x00, "3000" )
193 PORT_DIPSETTING( 0x20, "5000" )
194 PORT_DIPSETTING( 0x40, "7000" )
195 PORT_DIPSETTING( 0x60, "9000" )
196 PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_VBLANK )
197 INPUT_PORTS_END
198
199
200
201 static struct GfxLayout charlayout =
202 {
203 8,8, /* 8*8 chars */
204 128, /* 128 characters */
205 1, /* 1 bit per pixel */
206 { 0 },
207 { 7, 6, 5, 4, 3, 2, 1, 0 },
208 { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
209 8*8 /* every char takes 8 consecutive bytes */
210 };
211
212
213 static struct GfxDecodeInfo gfxdecodeinfo[] =
214 {
215 { REGION_GFX1, 0, &charlayout, 0, 2 },
216 { REGION_GFX2, 0, &charlayout, 0, 2 },
217 { -1 } /* end of array */
218 };
219
220
221
222 static struct MachineDriver machine_driver_safarir =
223 {
224 /* basic machine hardware */
225 {
226 {
227 CPU_8080,
228 3072000, /* 3 Mhz ? */ \
229 readmem,writemem,0,0,
230 ignore_interrupt,1
231 }
232 },
233 60, DEFAULT_REAL_60HZ_VBLANK_DURATION,
234 1, /* single CPU, no need for interleaving */
235 0, /* init machine */
236
237 /* video hardware */
238 32*8, 32*8, { 0*8, 30*8-1, 0*8, 28*8-1 },
239 gfxdecodeinfo,
240 3,2*2,
241 init_palette,
242
243 VIDEO_TYPE_RASTER,
244 0,
245 0,
246 0,
247 safarir_vh_screenrefresh,
248
249 /* sound hardware */
250 0,0,0,0
251 };
252
253 /***************************************************************************
254
255 Game driver(s)
256
257 ***************************************************************************/
258
259 ROM_START( safarir )
260 ROM_REGION( 0x10000, REGION_CPU1 ) /* 64k for main CPU */
261 ROM_LOAD( "rl01", 0x0000, 0x0400, 0xcf7703c9 )
262 ROM_LOAD( "rl02", 0x0400, 0x0400, 0x1013ecd3 )
263 ROM_LOAD( "rl03", 0x0800, 0x0400, 0x84545894 )
264 ROM_LOAD( "rl04", 0x0c00, 0x0400, 0x5dd12f96 )
265 ROM_LOAD( "rl05", 0x1000, 0x0400, 0x935ed469 )
266 ROM_LOAD( "rl06", 0x1400, 0x0400, 0x24c1cd42 )
267
268 ROM_REGION( 0x0400, REGION_GFX1 | REGIONFLAG_DISPOSE )
269 ROM_LOAD( "rl08", 0x0000, 0x0400, 0xd6a50aac )
270
271 ROM_REGION( 0x0400, REGION_GFX2 | REGIONFLAG_DISPOSE )
272 ROM_LOAD( "rl07", 0x0000, 0x0400, 0xba525203 )
273 ROM_END
274
275
276 GAMEX( ????, safarir, 0, safarir, safarir, 0, ROT90, "SNK", "Safari Rally", GAME_NO_SOUND | GAME_IMPERFECT_COLORS )
277