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author | Jörg Hohensohn <hohensoh@rockbox.org> | 2003-10-30 23:47:34 +0000 |
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committer | Jörg Hohensohn <hohensoh@rockbox.org> | 2003-10-30 23:47:34 +0000 |
commit | 0860a4d6d17b86772b388c69d42c49d33e3a0898 (patch) | |
tree | 7139cb267daf1489c3044a0a9703993c95bbaf77 /apps | |
parent | d8b31814c710324b554d445b610ea26cd5d12fa4 (diff) | |
download | rockbox-0860a4d6d17b86772b388c69d42c49d33e3a0898.tar.gz rockbox-0860a4d6d17b86772b388c69d42c49d33e3a0898.zip |
from request #628509: ported the Chip-8 emulator as a plugin
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3996 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps')
-rw-r--r-- | apps/plugins/chip8.c | 553 |
1 files changed, 553 insertions, 0 deletions
diff --git a/apps/plugins/chip8.c b/apps/plugins/chip8.c new file mode 100644 index 0000000000..0be5e10436 --- /dev/null +++ b/apps/plugins/chip8.c | |||
@@ -0,0 +1,553 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Orginal from Vision-8 Emulator / Copyright (C) 1997-1999 Marcel de Kogel | ||
11 | * Modified for Archos by Blueloop (a.wenger@gmx.de) | ||
12 | * | ||
13 | * All files in this archive are subject to the GNU General Public License. | ||
14 | * See the file COPYING in the source tree root for full license agreement. | ||
15 | * | ||
16 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
17 | * KIND, either express or implied. | ||
18 | * | ||
19 | ****************************************************************************/ | ||
20 | #include "plugin.h" | ||
21 | |||
22 | /* Only build for (correct) target */ | ||
23 | #ifndef SIMULATOR | ||
24 | #ifdef HAVE_LCD_BITMAP | ||
25 | |||
26 | static struct plugin_api* rb; /* here is a global api struct pointer */ | ||
27 | /* plugins have no framebuffer access, we need a copy */ | ||
28 | unsigned char lcd_framebuf[8][64]; | ||
29 | |||
30 | typedef unsigned char byte; /* sizeof(byte)==1 */ | ||
31 | typedef unsigned short word; /* sizeof(word)>=2 */ | ||
32 | |||
33 | struct chip8_regs_struct | ||
34 | { | ||
35 | byte alg[16]; /* 16 general registers */ | ||
36 | byte delay,sound; /* delay and sound timer */ | ||
37 | word i; /* index register */ | ||
38 | word pc; /* program counter */ | ||
39 | word sp; /* stack pointer */ | ||
40 | }; | ||
41 | |||
42 | static struct chip8_regs_struct chip8_regs; | ||
43 | |||
44 | #define chip8_iperiod 10 /* number of opcodes per */ | ||
45 | /* timeslice (1/50sec.) */ | ||
46 | static byte chip8_key_pressed; | ||
47 | static byte chip8_keys[16]; /* if 1, key is held down */ | ||
48 | static byte chip8_display[64*32]; /* 0xff if pixel is set, */ | ||
49 | /* 0x00 otherwise */ | ||
50 | static byte chip8_mem[4096]; /* machine memory. program */ | ||
51 | /* is loaded at 0x200 */ | ||
52 | |||
53 | #define read_mem(a) (chip8_mem[(a)&4095]) | ||
54 | #define write_mem(a,v) (chip8_mem[(a)&4095]=(v)) | ||
55 | |||
56 | static byte chip8_running; /* Flag for End-of-Emulation */ | ||
57 | |||
58 | #define get_reg_offset(opcode) (chip8_regs.alg+(opcode>>8)) | ||
59 | #define get_reg_value(opcode) (*get_reg_offset(opcode)) | ||
60 | #define get_reg_offset_2(opcode) (chip8_regs.alg+((opcode>>4)&0x0f)) | ||
61 | #define get_reg_value_2(opcode) (*get_reg_offset_2(opcode)) | ||
62 | |||
63 | typedef void (*opcode_fn) (word opcode); | ||
64 | typedef void (*math_fn) (byte *reg1,byte reg2); | ||
65 | |||
66 | /****************************************************************************/ | ||
67 | /* Turn sound on */ | ||
68 | /****************************************************************************/ | ||
69 | static void chip8_sound_on (void) { } | ||
70 | |||
71 | /****************************************************************************/ | ||
72 | /* Turn sound off */ | ||
73 | /****************************************************************************/ | ||
74 | static void chip8_sound_off (void) { } | ||
75 | |||
76 | static void op_call (word opcode) | ||
77 | { | ||
78 | chip8_regs.sp--; | ||
79 | write_mem (chip8_regs.sp,chip8_regs.pc&0xff); | ||
80 | chip8_regs.sp--; | ||
81 | write_mem (chip8_regs.sp,chip8_regs.pc>>8); | ||
82 | chip8_regs.pc=opcode; | ||
83 | } | ||
84 | |||
85 | static void op_jmp (word opcode) | ||
86 | { | ||
87 | chip8_regs.pc=opcode; | ||
88 | } | ||
89 | |||
90 | static void op_key (word opcode) | ||
91 | { | ||
92 | byte key_value,cp_value; | ||
93 | if ((opcode&0xff)==0x9e) | ||
94 | cp_value=1; | ||
95 | else if ((opcode&0xff)==0xa1) | ||
96 | cp_value=0; | ||
97 | else | ||
98 | return; | ||
99 | key_value=chip8_keys[get_reg_value(opcode)&0x0f]; | ||
100 | if (cp_value==key_value) chip8_regs.pc+=2; | ||
101 | } | ||
102 | |||
103 | static void op_skeq_const (word opcode) | ||
104 | { | ||
105 | if (get_reg_value(opcode)==(opcode&0xff)) chip8_regs.pc+=2; | ||
106 | } | ||
107 | |||
108 | static void op_skne_const (word opcode) | ||
109 | { | ||
110 | if (get_reg_value(opcode)!=(opcode&0xff)) chip8_regs.pc+=2; | ||
111 | } | ||
112 | |||
113 | static void op_skeq_reg (word opcode) | ||
114 | { | ||
115 | if (get_reg_value(opcode)==get_reg_value_2(opcode)) chip8_regs.pc+=2; | ||
116 | } | ||
117 | |||
118 | static void op_skne_reg (word opcode) | ||
119 | { | ||
120 | if (get_reg_value(opcode)!=get_reg_value_2(opcode)) chip8_regs.pc+=2; | ||
121 | } | ||
122 | |||
123 | static void op_mov_const (word opcode) | ||
124 | { | ||
125 | *get_reg_offset(opcode)=opcode&0xff; | ||
126 | } | ||
127 | |||
128 | static void op_add_const (word opcode) | ||
129 | { | ||
130 | *get_reg_offset(opcode)+=opcode&0xff; | ||
131 | } | ||
132 | |||
133 | static void op_mvi (word opcode) | ||
134 | { | ||
135 | chip8_regs.i=opcode; | ||
136 | } | ||
137 | |||
138 | static void op_jmi (word opcode) | ||
139 | { | ||
140 | chip8_regs.pc=opcode+chip8_regs.alg[0]; | ||
141 | } | ||
142 | |||
143 | static void op_rand (word opcode) | ||
144 | { | ||
145 | *get_reg_offset(opcode)=rb->rand()&(opcode&0xff); | ||
146 | } | ||
147 | |||
148 | static void math_or (byte *reg1,byte reg2) | ||
149 | { | ||
150 | *reg1|=reg2; | ||
151 | } | ||
152 | |||
153 | static void math_mov (byte *reg1,byte reg2) | ||
154 | { | ||
155 | *reg1=reg2; | ||
156 | } | ||
157 | |||
158 | static void math_nop (byte *reg1,byte reg2) | ||
159 | { | ||
160 | (void)reg1; | ||
161 | (void)reg2; | ||
162 | } | ||
163 | |||
164 | static void math_and (byte *reg1,byte reg2) | ||
165 | { | ||
166 | *reg1&=reg2; | ||
167 | } | ||
168 | |||
169 | static void math_xor (byte *reg1,byte reg2) | ||
170 | { | ||
171 | *reg1^=reg2; | ||
172 | } | ||
173 | |||
174 | static void math_add (byte *reg1,byte reg2) | ||
175 | { | ||
176 | word tmp; | ||
177 | tmp=*reg1+reg2; | ||
178 | *reg1=(byte)tmp; | ||
179 | chip8_regs.alg[15]=tmp>>8; | ||
180 | } | ||
181 | |||
182 | static void math_sub (byte *reg1,byte reg2) | ||
183 | { | ||
184 | word tmp; | ||
185 | tmp=*reg1-reg2; | ||
186 | *reg1=(byte)tmp; | ||
187 | chip8_regs.alg[15]=((byte)(tmp>>8))+1; | ||
188 | } | ||
189 | |||
190 | static void math_shr (byte *reg1,byte reg2) | ||
191 | { | ||
192 | (void)reg2; | ||
193 | chip8_regs.alg[15]=*reg1&1; | ||
194 | *reg1>>=1; | ||
195 | } | ||
196 | |||
197 | static void math_shl (byte *reg1,byte reg2) | ||
198 | { | ||
199 | (void)reg2; | ||
200 | chip8_regs.alg[15]=*reg1>>7; | ||
201 | *reg1<<=1; | ||
202 | } | ||
203 | |||
204 | static void math_rsb (byte *reg1,byte reg2) | ||
205 | { | ||
206 | word tmp; | ||
207 | tmp=reg2-*reg1; | ||
208 | *reg1=(byte)tmp; | ||
209 | chip8_regs.alg[15]=((byte)(tmp>>8))+1; | ||
210 | } | ||
211 | |||
212 | static void op_system (word opcode) | ||
213 | { | ||
214 | switch ((byte)opcode) | ||
215 | { | ||
216 | case 0xe0: | ||
217 | rb->memset (chip8_display,0,sizeof(chip8_display)); | ||
218 | break; | ||
219 | case 0xee: | ||
220 | chip8_regs.pc=read_mem(chip8_regs.sp)<<8; | ||
221 | chip8_regs.sp++; | ||
222 | chip8_regs.pc+=read_mem(chip8_regs.sp); | ||
223 | chip8_regs.sp++; | ||
224 | break; | ||
225 | } | ||
226 | } | ||
227 | |||
228 | static void op_misc (word opcode) | ||
229 | { | ||
230 | byte *reg,i,j; | ||
231 | reg=get_reg_offset(opcode); | ||
232 | switch ((byte)opcode) | ||
233 | { | ||
234 | case 0x07: | ||
235 | *reg=chip8_regs.delay; | ||
236 | break; | ||
237 | case 0x0a: | ||
238 | if (chip8_key_pressed) | ||
239 | *reg=chip8_key_pressed-1; | ||
240 | else | ||
241 | chip8_regs.pc-=2; | ||
242 | break; | ||
243 | case 0x15: | ||
244 | chip8_regs.delay=*reg; | ||
245 | break; | ||
246 | case 0x18: | ||
247 | chip8_regs.sound=*reg; | ||
248 | if (chip8_regs.sound) chip8_sound_on(); | ||
249 | break; | ||
250 | case 0x1e: | ||
251 | chip8_regs.i+=(*reg); | ||
252 | break; | ||
253 | case 0x29: | ||
254 | chip8_regs.i=((word)(*reg&0x0f))*5; | ||
255 | break; | ||
256 | case 0x33: | ||
257 | i=*reg; | ||
258 | for (j=0;i>=100;i-=100) j++; | ||
259 | write_mem (chip8_regs.i,j); | ||
260 | for (j=0;i>=10;i-=10) j++; | ||
261 | write_mem (chip8_regs.i+1,j); | ||
262 | write_mem (chip8_regs.i+2,i); | ||
263 | break; | ||
264 | case 0x55: | ||
265 | for (i=0,j=(opcode>>8)&0x0f;i<=j;++i) | ||
266 | write_mem(chip8_regs.i+i,chip8_regs.alg[i]); | ||
267 | break; | ||
268 | case 0x65: | ||
269 | for (i=0,j=(opcode>>8)&0x0f;i<=j;++i) | ||
270 | chip8_regs.alg[i]=read_mem(chip8_regs.i+i); | ||
271 | break; | ||
272 | } | ||
273 | } | ||
274 | |||
275 | static void op_sprite (word opcode) | ||
276 | { | ||
277 | byte *q; | ||
278 | byte n,x,x2,y,collision; | ||
279 | word p; | ||
280 | x=get_reg_value(opcode)&63; | ||
281 | y=get_reg_value_2(opcode)&31; | ||
282 | p=chip8_regs.i; | ||
283 | q=chip8_display+y*64; | ||
284 | n=opcode&0x0f; | ||
285 | if (n+y>32) n=32-y; | ||
286 | for (collision=1;n;--n,q+=64) | ||
287 | { | ||
288 | for (y=read_mem(p++),x2=x;y;y<<=1,x2=(x2+1)&63) | ||
289 | if (y&0x80) collision&=(q[x2]^=0xff); | ||
290 | } | ||
291 | chip8_regs.alg[15]=collision^1; | ||
292 | } | ||
293 | |||
294 | static math_fn math_opcodes[16]= | ||
295 | { | ||
296 | math_mov, | ||
297 | math_or, | ||
298 | math_and, | ||
299 | math_xor, | ||
300 | math_add, | ||
301 | math_sub, | ||
302 | math_shr, | ||
303 | math_rsb, | ||
304 | math_nop, | ||
305 | math_nop, | ||
306 | math_nop, | ||
307 | math_nop, | ||
308 | math_nop, | ||
309 | math_nop, | ||
310 | math_shl, | ||
311 | math_nop | ||
312 | }; | ||
313 | |||
314 | static void op_math (word opcode) | ||
315 | { | ||
316 | (*(math_opcodes[opcode&0x0f])) | ||
317 | (get_reg_offset(opcode),get_reg_value_2(opcode)); | ||
318 | } | ||
319 | |||
320 | static opcode_fn main_opcodes[16]= | ||
321 | { | ||
322 | op_system, | ||
323 | op_jmp, | ||
324 | op_call, | ||
325 | op_skeq_const, | ||
326 | op_skne_const, | ||
327 | op_skeq_reg, | ||
328 | op_mov_const, | ||
329 | op_add_const, | ||
330 | op_math, | ||
331 | op_skne_reg, | ||
332 | op_mvi, | ||
333 | op_jmi, | ||
334 | op_rand, | ||
335 | op_sprite, | ||
336 | op_key, | ||
337 | op_misc | ||
338 | }; | ||
339 | |||
340 | /****************************************************************************/ | ||
341 | /* Update the display */ | ||
342 | /****************************************************************************/ | ||
343 | static void chip8_update_display(void) | ||
344 | { | ||
345 | int x,y,i; | ||
346 | byte w; | ||
347 | |||
348 | // lcd_clear_display(); | ||
349 | for (y=0;y<=7;++y) /* 32 rows */ | ||
350 | { | ||
351 | for (x=0;x<64;++x) /* 64 columns */ | ||
352 | { | ||
353 | w = 0; | ||
354 | for (i=0;i<=3;i++) | ||
355 | { | ||
356 | w = w >> 2; | ||
357 | if (chip8_display[x+(y*4+i)*64] != 0) | ||
358 | { | ||
359 | w += 128+64; | ||
360 | } | ||
361 | lcd_framebuf[y][x] = w; | ||
362 | } | ||
363 | } | ||
364 | } | ||
365 | rb->lcd_bitmap(lcd_framebuf[0], 24, 0*8, 64, 8, true); | ||
366 | rb->lcd_bitmap(lcd_framebuf[1], 24, 1*8, 64, 8, true); | ||
367 | rb->lcd_bitmap(lcd_framebuf[2], 24, 2*8, 64, 8, true); | ||
368 | rb->lcd_bitmap(lcd_framebuf[3], 24, 3*8, 64, 8, true); | ||
369 | rb->lcd_bitmap(lcd_framebuf[4], 24, 4*8, 64, 8, true); | ||
370 | rb->lcd_bitmap(lcd_framebuf[5], 24, 5*8, 64, 8, true); | ||
371 | rb->lcd_bitmap(lcd_framebuf[6], 24, 6*8, 64, 8, true); | ||
372 | rb->lcd_bitmap(lcd_framebuf[7], 24, 7*8, 64, 8, true); | ||
373 | rb->lcd_update_rect(24,0,64,64); | ||
374 | } | ||
375 | |||
376 | |||
377 | static void chip8_keyboard(void) | ||
378 | { | ||
379 | switch (rb->button_get(false)) | ||
380 | { | ||
381 | case BUTTON_OFF: /* Abort Emulator */ | ||
382 | chip8_running = false; | ||
383 | break; | ||
384 | |||
385 | case BUTTON_UP: chip8_keys[2] = 1; break; | ||
386 | case BUTTON_UP | BUTTON_REL: chip8_keys[2] = 0; break; | ||
387 | case BUTTON_LEFT: chip8_keys[4] = 1; break; | ||
388 | case BUTTON_LEFT | BUTTON_REL: chip8_keys[4] = 0; break; | ||
389 | case BUTTON_RIGHT: chip8_keys[6] = 1; break; | ||
390 | case BUTTON_RIGHT | BUTTON_REL: chip8_keys[6] = 0; break; | ||
391 | case BUTTON_DOWN: chip8_keys[8] = 1; break; | ||
392 | case BUTTON_DOWN | BUTTON_REL: chip8_keys[8] = 0; break; | ||
393 | case BUTTON_PLAY: chip8_keys[5] = 1; break; | ||
394 | case BUTTON_PLAY | BUTTON_REL: chip8_keys[5] = 0; break; | ||
395 | case BUTTON_F1: chip8_keys[1] = 1; break; | ||
396 | case BUTTON_F1 | BUTTON_REL: chip8_keys[1] = 0; break; | ||
397 | case BUTTON_F2: chip8_keys[7] = 1; break; | ||
398 | case BUTTON_F2 | BUTTON_REL: chip8_keys[7] = 0; break; | ||
399 | case BUTTON_F3: chip8_keys[3] = 1; break; | ||
400 | case BUTTON_F3 | BUTTON_REL: chip8_keys[3] = 0; break; | ||
401 | case BUTTON_ON: chip8_keys[9] = 1; break; | ||
402 | case BUTTON_ON | BUTTON_REL: chip8_keys[9] = 0; break; | ||
403 | |||
404 | case SYS_USB_CONNECTED: | ||
405 | #ifdef HAVE_LCD_CHARCELLS | ||
406 | status_set_param(false); | ||
407 | #endif | ||
408 | chip8_running = false; | ||
409 | break; | ||
410 | } | ||
411 | } | ||
412 | |||
413 | |||
414 | /****************************************************************************/ | ||
415 | /* Execute chip8_iperiod opcodes */ | ||
416 | /****************************************************************************/ | ||
417 | static void chip8_execute(void) | ||
418 | { | ||
419 | byte i; | ||
420 | byte key_pressed=0; | ||
421 | word opcode; | ||
422 | for (i = chip8_iperiod ; i ;--i) | ||
423 | { /* Fetch the opcode */ | ||
424 | opcode=(read_mem(chip8_regs.pc)<<8)+read_mem(chip8_regs.pc+1); | ||
425 | |||
426 | chip8_regs.pc+=2; | ||
427 | (*(main_opcodes[opcode>>12]))(opcode&0x0fff); /* Emulate this opcode */ | ||
428 | } | ||
429 | /* Update timers */ | ||
430 | if (chip8_regs.delay) --chip8_regs.delay; | ||
431 | if (chip8_regs.sound) --chip8_regs.sound; /* How could we make sound on the archos? */ | ||
432 | /* Update the machine status */ | ||
433 | chip8_update_display(); | ||
434 | chip8_keyboard(); | ||
435 | rb->sleep(HZ/70); /* ca. 70Hz */ | ||
436 | |||
437 | for (i=key_pressed=0;i<16;++i) /* check if a key was first */ | ||
438 | if (chip8_keys[i]) key_pressed=i+1; /* pressed */ | ||
439 | if (key_pressed && key_pressed!=chip8_key_pressed) | ||
440 | chip8_key_pressed=key_pressed; | ||
441 | else | ||
442 | chip8_key_pressed=0; | ||
443 | } | ||
444 | |||
445 | /****************************************************************************/ | ||
446 | /* Reset the virtual chip8 machine */ | ||
447 | /****************************************************************************/ | ||
448 | static void chip8_reset(void) | ||
449 | { | ||
450 | static byte chip8_sprites[16*5]= | ||
451 | { | ||
452 | 0xf9,0x99,0xf2,0x62,0x27, | ||
453 | 0xf1,0xf8,0xff,0x1f,0x1f, | ||
454 | 0x99,0xf1,0x1f,0x8f,0x1f, | ||
455 | 0xf8,0xf9,0xff,0x12,0x44, | ||
456 | 0xf9,0xf9,0xff,0x9f,0x1f, | ||
457 | 0xf9,0xf9,0x9e,0x9e,0x9e, | ||
458 | 0xf8,0x88,0xfe,0x99,0x9e, | ||
459 | 0xf8,0xf8,0xff,0x8f,0x88, | ||
460 | }; | ||
461 | byte i; | ||
462 | for (i=0;i<16*5;++i) | ||
463 | { | ||
464 | write_mem (i<<1,chip8_sprites[i]&0xf0); | ||
465 | write_mem ((i<<1)+1,chip8_sprites[i]<<4); | ||
466 | } | ||
467 | rb->memset (chip8_regs.alg,0,sizeof(chip8_regs.alg)); | ||
468 | rb->memset (chip8_keys,0,sizeof(chip8_keys)); | ||
469 | chip8_key_pressed=0; | ||
470 | rb->memset (chip8_display,0,sizeof(chip8_display)); | ||
471 | chip8_regs.delay=chip8_regs.sound=chip8_regs.i=0; | ||
472 | chip8_regs.sp=0x1e0; | ||
473 | chip8_regs.pc=0x200; | ||
474 | chip8_sound_off (); | ||
475 | chip8_running=1; | ||
476 | } | ||
477 | |||
478 | static bool chip8_init(char* file) | ||
479 | { | ||
480 | int numread; | ||
481 | int fd; | ||
482 | |||
483 | fd = rb->open(file, O_RDONLY); | ||
484 | if (fd==-1) return false; | ||
485 | numread = rb->read(fd, chip8_mem+0x200, 4096-0x200); | ||
486 | if (numread==-1) return false; | ||
487 | |||
488 | rb->close(fd); | ||
489 | return true; | ||
490 | } | ||
491 | |||
492 | bool chip8_run(char* file) | ||
493 | { | ||
494 | int ok; | ||
495 | |||
496 | ok = chip8_init(file); | ||
497 | if (!ok) { | ||
498 | rb->lcd_clear_display(); | ||
499 | rb->lcd_puts(0, 0, "Error"); | ||
500 | rb->lcd_update(); | ||
501 | rb->sleep(HZ); | ||
502 | return false; | ||
503 | } | ||
504 | rb->lcd_clear_display(); | ||
505 | rb->lcd_puts(0, 0, "Chip8 Emulator "); | ||
506 | rb->lcd_puts(0, 1, " (c) by "); | ||
507 | rb->lcd_puts(0, 2, "Marcel de Kogel"); | ||
508 | rb->lcd_puts(0, 3, " Archos: "); | ||
509 | rb->lcd_puts(0, 4, " Blueloop "); | ||
510 | rb->lcd_puts(0, 5, "---------------"); | ||
511 | rb->lcd_puts(0, 6, "File OK..."); | ||
512 | rb->lcd_update(); | ||
513 | rb->sleep(HZ*1); | ||
514 | rb->lcd_clear_display(); | ||
515 | rb->lcd_drawrect(23,0,66,64); | ||
516 | rb->lcd_update(); | ||
517 | chip8_reset(); | ||
518 | while (chip8_running) chip8_execute(); | ||
519 | |||
520 | return true; | ||
521 | } | ||
522 | |||
523 | |||
524 | /***************** Plugin Entry Point *****************/ | ||
525 | |||
526 | enum plugin_status plugin_start(struct plugin_api* api, void* parameter) | ||
527 | { | ||
528 | char* filename; | ||
529 | |||
530 | /* this macro should be called as the first thing you do in the plugin. | ||
531 | it test that the api version and model the plugin was compiled for | ||
532 | matches the machine it is running on */ | ||
533 | TEST_PLUGIN_API(api); | ||
534 | rb = api; /* copy to global api pointer */ | ||
535 | |||
536 | if (parameter == NULL) | ||
537 | { | ||
538 | rb->lcd_puts(0, 0, "Play .ch8 file!"); | ||
539 | rb->lcd_update(); | ||
540 | rb->sleep(HZ); | ||
541 | return PLUGIN_ERROR; | ||
542 | } | ||
543 | else | ||
544 | { | ||
545 | filename = (char*) parameter; | ||
546 | } | ||
547 | |||
548 | /* now go ahead and have fun! */ | ||
549 | return chip8_run(filename) ? PLUGIN_OK : PLUGIN_ERROR; | ||
550 | } | ||
551 | |||
552 | #endif // #ifdef HAVE_LCD_BITMAP | ||
553 | #endif // #ifndef SIMULATOR | ||