gp2x/emu.c

   1 // (c) Copyright 2006-2007 notaz, All rights reserved.\r
   2 // Free for non-commercial use.\r
   3 \r
   4 // For commercial use, separate licencing terms must be obtained.\r
   5 \r
   6 #include <stdio.h>\r
   7 #include <stdlib.h>\r
   8 #include <sys/time.h>\r
   9 #include <sys/stat.h>\r
  10 #include <sys/types.h>\r
  11 #include <linux/limits.h>\r
  12 #include <ctype.h>\r
  13 #include <unistd.h>\r
  14 \r
  15 #include <stdarg.h>\r
  16 \r
  17 #include "emu.h"\r
  18 #include "plat_gp2x.h"\r
  19 #include "soc.h"\r
  20 #include "../common/menu.h"\r
  21 #include "../common/arm_utils.h"\r
  22 #include "../common/fonts.h"\r
  23 #include "../common/emu.h"\r
  24 #include "../common/config.h"\r
  25 #include "../common/input.h"\r
  26 #include "../linux/sndout_oss.h"\r
  27 #include "version.h"\r
  28 \r
  29 #include <pico/pico_int.h>\r
  30 #include <pico/patch.h>\r
  31 #include <pico/sound/mix.h>\r
  32 #include <zlib/zlib.h>\r
  33 \r
  34 //#define PFRAMES\r
  35 \r
  36 #ifdef BENCHMARK\r
  37 #define OSD_FPS_X 220\r
  38 #else\r
  39 #define OSD_FPS_X 260\r
  40 #endif\r
  41 \r
  42 \r
  43 extern int crashed_940;\r
  44 \r
  45 static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
  46 static struct timeval noticeMsgTime = { 0, 0 }; // when started showing\r
  47 static int osd_fps_x;\r
  48 static int gp2x_old_gamma = 100;\r
  49 unsigned char *PicoDraw2FB = NULL;  // temporary buffer for alt renderer\r
  50 int reset_timing = 0;\r
  51 \r
  52 #define PICO_PEN_ADJUST_X 4\r
  53 #define PICO_PEN_ADJUST_Y 2\r
  54 static int pico_pen_x = 320/2, pico_pen_y = 240/2;\r
  55 \r
  56 static void emu_msg_cb(const char *msg);\r
  57 static void emu_msg_tray_open(void);\r
  58 \r
  59 \r
  60 void emu_noticeMsgUpdated(void)\r
  61 {\r
  62         gettimeofday(&noticeMsgTime, 0);\r
  63 }\r
  64 \r
  65 int emu_getMainDir(char *dst, int len)\r
  66 {\r
  67         extern char **g_argv;\r
  68         int j;\r
  69 \r
  70         strncpy(dst, g_argv[0], len);\r
  71         len -= 32; // reserve\r
  72         if (len < 0) len = 0;\r
  73         dst[len] = 0;\r
  74         for (j = strlen(dst); j > 0; j--)\r
  75                 if (dst[j] == '/') { dst[j+1] = 0; break; }\r
  76 \r
  77         return j + 1;\r
  78 }\r
  79 \r
  80 void emu_Init(void)\r
  81 {\r
  82         // make temp buffer for alt renderer\r
  83         PicoDraw2FB = malloc((8+320)*(8+240+8));\r
  84         if (!PicoDraw2FB)\r
  85         {\r
  86                 printf("PicoDraw2FB == 0\n");\r
  87         }\r
  88 \r
  89         // make dirs for saves, cfgs, etc.\r
  90         mkdir("mds", 0777);\r
  91         mkdir("srm", 0777);\r
  92         mkdir("brm", 0777);\r
  93         mkdir("cfg", 0777);\r
  94 \r
  95         PicoInit();\r
  96         PicoMessage = emu_msg_cb;\r
  97         PicoMCDopenTray = emu_msg_tray_open;\r
  98         PicoMCDcloseTray = menu_loop_tray;\r
  99 }\r
 100 \r
 101 \r
 102 static void scaling_update(void)\r
 103 {\r
 104         PicoOpt &= ~0x4100;\r
 105         switch (currentConfig.scaling) {\r
 106                 default: break; // off\r
 107                 case 1:  // hw hor\r
 108                 case 2:  PicoOpt |=  0x0100; break; // hw hor+vert\r
 109                 case 3:  PicoOpt |=  0x4000; break; // sw hor\r
 110         }\r
 111 }\r
 112 \r
 113 \r
 114 void emu_Deinit(void)\r
 115 {\r
 116         // save SRAM\r
 117         if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
 118                 emu_SaveLoadGame(0, 1);\r
 119                 SRam.changed = 0;\r
 120         }\r
 121 \r
 122         if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG))\r
 123                 emu_writelrom();\r
 124 \r
 125         free(PicoDraw2FB);\r
 126 \r
 127         PicoExit();\r
 128 \r
 129         // restore gamma\r
 130         if (gp2x_old_gamma != 100)\r
 131                 set_lcd_gamma(100, 0);\r
 132 }\r
 133 \r
 134 void emu_prepareDefaultConfig(void)\r
 135 {\r
 136         memset(&defaultConfig, 0, sizeof(defaultConfig));\r
 137         defaultConfig.EmuOpt    = 0x9d | 0x00700; // | <- ram_tmng, confirm_save, cd_leds\r
 138         defaultConfig.s_PicoOpt = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC|POPT_ACC_SPRITES;\r
 139         defaultConfig.s_PsndRate = 44100;\r
 140         defaultConfig.s_PicoRegion = 0; // auto\r
 141         defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP\r
 142         defaultConfig.s_PicoCDBuffers = 0;\r
 143         defaultConfig.Frameskip = -1; // auto\r
 144         defaultConfig.CPUclock = -1;\r
 145         defaultConfig.volume = 50;\r
 146         defaultConfig.gamma = 100;\r
 147         defaultConfig.scaling = 0;\r
 148         defaultConfig.turbo_rate = 15;\r
 149 }\r
 150 \r
 151 void osd_text(int x, int y, const char *text)\r
 152 {\r
 153         int len = strlen(text)*8;\r
 154         int *p, i, h, offs;\r
 155 \r
 156         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 157                 len = (len+3) >> 2;\r
 158                 for (h = 0; h < 8; h++) {\r
 159                         offs = (x + g_screen_width * (y+h)) & ~3;\r
 160                         p = (int *) ((char *)g_screen_ptr + offs);\r
 161                         for (i = len; i; i--, p++)\r
 162                                 *p = 0xe0e0e0e0;\r
 163                 }\r
 164                 emu_textOut8(x, y, text);\r
 165         } else {\r
 166                 len = (len+1) >> 1;\r
 167                 for (h = 0; h < 8; h++) {\r
 168                         offs = (x + g_screen_width * (y+h)) & ~1;\r
 169                         p = (int *) ((short *)g_screen_ptr + offs);\r
 170                         for (i = len; i; i--, p++)\r
 171                                 *p = (*p >> 2) & 0x39e7;\r
 172                 }\r
 173                 emu_textOut16(x, y, text);\r
 174         }\r
 175 }\r
 176 \r
 177 static void draw_cd_leds(void)\r
 178 {\r
 179 //      static\r
 180         int old_reg;\r
 181 //      if (!((Pico_mcd->s68k_regs[0] ^ old_reg) & 3)) return; // no change // mmu hack problems?\r
 182         old_reg = Pico_mcd->s68k_regs[0];\r
 183 \r
 184         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 185                 // 8-bit modes\r
 186                 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
 187                 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
 188                 *(unsigned int *)((char *)g_screen_ptr + 320*2+ 4) =\r
 189                 *(unsigned int *)((char *)g_screen_ptr + 320*3+ 4) =\r
 190                 *(unsigned int *)((char *)g_screen_ptr + 320*4+ 4) = col_g;\r
 191                 *(unsigned int *)((char *)g_screen_ptr + 320*2+12) =\r
 192                 *(unsigned int *)((char *)g_screen_ptr + 320*3+12) =\r
 193                 *(unsigned int *)((char *)g_screen_ptr + 320*4+12) = col_r;\r
 194         } else {\r
 195                 // 16-bit modes\r
 196                 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + 320*2+4);\r
 197                 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
 198                 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
 199                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
 200                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;\r
 201                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
 202         }\r
 203 }\r
 204 \r
 205 static void draw_pico_ptr(void)\r
 206 {\r
 207         unsigned short *p = (unsigned short *)g_screen_ptr;\r
 208 \r
 209         // only if pen enabled and for 16bit modes\r
 210         if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;\r
 211 \r
 212         if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))\r
 213                 p += 32;\r
 214 \r
 215         p += 320 * (pico_pen_y + PICO_PEN_ADJUST_Y);\r
 216         p += pico_pen_x + PICO_PEN_ADJUST_X;\r
 217         p[0]   ^= 0xffff;\r
 218         p[319] ^= 0xffff;\r
 219         p[320] ^= 0xffff;\r
 220         p[321] ^= 0xffff;\r
 221         p[640] ^= 0xffff;\r
 222 }\r
 223 \r
 224 static int EmuScanBegin16(unsigned int num)\r
 225 {\r
 226         if (!(Pico.video.reg[1]&8)) num += 8;\r
 227         DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;\r
 228 \r
 229         return 0;\r
 230 }\r
 231 \r
 232 static int EmuScanBegin8(unsigned int num)\r
 233 {\r
 234         if (!(Pico.video.reg[1]&8)) num += 8;\r
 235         DrawLineDest = (unsigned char *)  g_screen_ptr + g_screen_width * num;\r
 236 \r
 237         return 0;\r
 238 }\r
 239 \r
 240 int localPal[0x100];\r
 241 static void (*vidCpyM2)(void *dest, void *src) = NULL;\r
 242 \r
 243 static void blit(const char *fps, const char *notice)\r
 244 {\r
 245         int emu_opt = currentConfig.EmuOpt;\r
 246 \r
 247         if (PicoOpt&0x10)\r
 248         {\r
 249                 // 8bit fast renderer\r
 250                 if (Pico.m.dirtyPal) {\r
 251                         Pico.m.dirtyPal = 0;\r
 252                         vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 253                         // feed new palette to our device\r
 254                         gp2x_video_setpalette(localPal, 0x40);\r
 255                 }\r
 256                 // a hack for VR\r
 257                 if (PicoRead16Hook == PicoSVPRead16)\r
 258                         memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);\r
 259                 // do actual copy\r
 260                 vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);\r
 261         }\r
 262         else if (!(emu_opt&0x80))\r
 263         {\r
 264                 // 8bit accurate renderer\r
 265                 if (Pico.m.dirtyPal)\r
 266                 {\r
 267                         int pallen = 0xc0;\r
 268                         Pico.m.dirtyPal = 0;\r
 269                         if (Pico.video.reg[0xC]&8) // shadow/hilight mode\r
 270                         {\r
 271                                 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 272                                 vidConvCpyRGB32sh(localPal+0x40, Pico.cram, 0x40);\r
 273                                 vidConvCpyRGB32hi(localPal+0x80, Pico.cram, 0x40);\r
 274                                 memcpy32(localPal+0xc0, localPal+0x40, 0x40);\r
 275                                 pallen = 0x100;\r
 276                         }\r
 277                         else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes\r
 278                                 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 279                                 vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);\r
 280                                 vidConvCpyRGB32(localPal+0x80, HighPal+0x40, 0x40);\r
 281                         }\r
 282                         else {\r
 283                                 vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 284                                 memcpy32(localPal+0x80, localPal, 0x40); // for spr prio mess\r
 285                         }\r
 286                         if (pallen > 0xc0) {\r
 287                                 localPal[0xc0] = 0x0000c000;\r
 288                                 localPal[0xd0] = 0x00c00000;\r
 289                                 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
 290                                 localPal[0xf0] = 0x00ffffff;\r
 291                         }\r
 292                         gp2x_video_setpalette(localPal, pallen);\r
 293                 }\r
 294         }\r
 295 \r
 296         if (notice || (emu_opt & 2)) {\r
 297                 int h = 232;\r
 298                 if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 8;\r
 299                 if (notice) osd_text(4, h, notice);\r
 300                 if (emu_opt & 2)\r
 301                         osd_text(osd_fps_x, h, fps);\r
 302         }\r
 303         if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))\r
 304                 draw_cd_leds();\r
 305         if (PicoAHW & PAHW_PICO)\r
 306                 draw_pico_ptr();\r
 307 \r
 308         //gp2x_video_wait_vsync();\r
 309         gp2x_video_flip();\r
 310 \r
 311         if (!(PicoOpt&0x10)) {\r
 312                 if (!(Pico.video.reg[1]&8)) {\r
 313                         if (currentConfig.EmuOpt&0x80) {\r
 314                                 DrawLineDest = (unsigned short *) g_screen_ptr + 320*8;\r
 315                         } else {\r
 316                                 DrawLineDest = (unsigned char  *) g_screen_ptr + 320*8;\r
 317                         }\r
 318                 } else {\r
 319                         DrawLineDest = g_screen_ptr;\r
 320                 }\r
 321         }\r
 322 }\r
 323 \r
 324 \r
 325 // clears whole screen or just the notice area (in all buffers)\r
 326 static void clearArea(int full)\r
 327 {\r
 328         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 329                 // 8-bit renderers\r
 330                 if (full) gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
 331                 else      gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
 332         } else {\r
 333                 // 16bit accurate renderer\r
 334                 if (full) gp2x_memset_all_buffers(0, 0, 320*240*2);\r
 335                 else      gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
 336         }\r
 337 }\r
 338 \r
 339 \r
 340 static void vidResetMode(void)\r
 341 {\r
 342         if (PicoOpt&0x10) {\r
 343                 gp2x_video_changemode(8);\r
 344         } else if (currentConfig.EmuOpt&0x80) {\r
 345                 gp2x_video_changemode(16);\r
 346                 PicoDrawSetColorFormat(1);\r
 347                 PicoScanBegin = EmuScanBegin16;\r
 348         } else {\r
 349                 gp2x_video_changemode(8);\r
 350                 PicoDrawSetColorFormat(2);\r
 351                 PicoScanBegin = EmuScanBegin8;\r
 352         }\r
 353         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 354                 // setup pal for 8-bit modes\r
 355                 localPal[0xc0] = 0x0000c000; // MCD LEDs\r
 356                 localPal[0xd0] = 0x00c00000;\r
 357                 localPal[0xe0] = 0x00000000; // reserved pixels for OSD\r
 358                 localPal[0xf0] = 0x00ffffff;\r
 359                 gp2x_video_setpalette(localPal, 0x100);\r
 360                 gp2x_memset_all_buffers(0, 0xe0, 320*240);\r
 361                 gp2x_video_flip();\r
 362         }\r
 363         Pico.m.dirtyPal = 1;\r
 364         // reset scaling\r
 365         if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))\r
 366              gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);\r
 367         else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);\r
 368 }\r
 369 \r
 370 \r
 371 static void emu_msg_cb(const char *msg)\r
 372 {\r
 373         if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {\r
 374                 // 8-bit renderers\r
 375                 gp2x_memset_all_buffers(320*232, 0xe0, 320*8);\r
 376                 osd_text(4, 232, msg);\r
 377                 gp2x_memcpy_all_buffers((char *)g_screen_ptr+320*232, 320*232, 320*8);\r
 378         } else {\r
 379                 // 16bit accurate renderer\r
 380                 gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);\r
 381                 osd_text(4, 232, msg);\r
 382                 gp2x_memcpy_all_buffers((char *)g_screen_ptr+320*232*2, 320*232*2, 320*8*2);\r
 383         }\r
 384         gettimeofday(&noticeMsgTime, 0);\r
 385         noticeMsgTime.tv_sec -= 2;\r
 386 \r
 387         /* assumption: emu_msg_cb gets called only when something slow is about to happen */\r
 388         reset_timing = 1;\r
 389 }\r
 390 \r
 391 static void emu_state_cb(const char *str)\r
 392 {\r
 393         clearArea(0);\r
 394         blit("", str);\r
 395 }\r
 396 \r
 397 static void emu_msg_tray_open(void)\r
 398 {\r
 399         strcpy(noticeMsg, "CD tray opened");\r
 400         gettimeofday(&noticeMsgTime, 0);\r
 401 }\r
 402 \r
 403 static void RunEventsPico(unsigned int events)\r
 404 {\r
 405         int ret, px, py, lim_x;\r
 406         static int pdown_frames = 0;\r
 407 \r
 408         emu_RunEventsPico(events);\r
 409 \r
 410         if (pico_inp_mode == 0) return;\r
 411 \r
 412         // for F200\r
 413         ret = gp2x_touchpad_read(&px, &py);\r
 414         if (ret >= 0)\r
 415         {\r
 416                 if (ret > 35000)\r
 417                 {\r
 418                         if (pdown_frames++ > 5)\r
 419                                 PicoPad[0] |= 0x20;\r
 420 \r
 421                         pico_pen_x = px;\r
 422                         pico_pen_y = py;\r
 423                         if (!(Pico.video.reg[12]&1)) {\r
 424                                 pico_pen_x -= 32;\r
 425                                 if (pico_pen_x <   0) pico_pen_x = 0;\r
 426                                 if (pico_pen_x > 248) pico_pen_x = 248;\r
 427                         }\r
 428                         if (pico_pen_y > 224) pico_pen_y = 224;\r
 429                 }\r
 430                 else\r
 431                         pdown_frames = 0;\r
 432 \r
 433                 //if (ret == 0)\r
 434                 //      PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;\r
 435         }\r
 436 \r
 437         if (PicoPad[0] & 1) pico_pen_y--;\r
 438         if (PicoPad[0] & 2) pico_pen_y++;\r
 439         if (PicoPad[0] & 4) pico_pen_x--;\r
 440         if (PicoPad[0] & 8) pico_pen_x++;\r
 441         PicoPad[0] &= ~0x0f; // release UDLR\r
 442 \r
 443         lim_x = (Pico.video.reg[12]&1) ? 319 : 255;\r
 444         if (pico_pen_y < 8) pico_pen_y = 8;\r
 445         if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;\r
 446         if (pico_pen_x < 0) pico_pen_x = 0;\r
 447         if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;\r
 448 \r
 449         PicoPicohw.pen_pos[0] = pico_pen_x;\r
 450         if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;\r
 451         PicoPicohw.pen_pos[0] += 0x3c;\r
 452         PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);\r
 453 }\r
 454 \r
 455 static void update_volume(int has_changed, int is_up)\r
 456 {\r
 457         static int prev_frame = 0, wait_frames = 0;\r
 458         int vol = currentConfig.volume;\r
 459 \r
 460         if (has_changed)\r
 461         {\r
 462                 if (vol < 5 && (PicoOpt&8) && prev_frame == Pico.m.frame_count - 1 && wait_frames < 12)\r
 463                         wait_frames++;\r
 464                 else {\r
 465                         if (is_up) {\r
 466                                 if (vol < 99) vol++;\r
 467                         } else {\r
 468                                 if (vol >  0) vol--;\r
 469                         }\r
 470                         wait_frames = 0;\r
 471                         sndout_oss_setvol(vol, vol);\r
 472                         currentConfig.volume = vol;\r
 473                 }\r
 474                 sprintf(noticeMsg, "VOL: %02i", vol);\r
 475                 gettimeofday(&noticeMsgTime, 0);\r
 476                 prev_frame = Pico.m.frame_count;\r
 477         }\r
 478 \r
 479         // set the right mixer func\r
 480         if (!(PicoOpt&8)) return; // just use defaults for mono\r
 481         if (vol >= 5)\r
 482                 PsndMix_32_to_16l = mix_32_to_16l_stereo;\r
 483         else {\r
 484                 mix_32_to_16l_level = 5 - vol;\r
 485                 PsndMix_32_to_16l = mix_32_to_16l_stereo_lvl;\r
 486         }\r
 487 }\r
 488 \r
 489 static void RunEvents(unsigned int which)\r
 490 {\r
 491         if (which & 0x1800) // save or load (but not both)\r
 492         {\r
 493                 int do_it = 1;\r
 494                 if ( emu_checkSaveFile(state_slot) &&\r
 495                                 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load\r
 496                                  (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save\r
 497                 {\r
 498                         const char *nm;\r
 499                         char tmp[64];\r
 500                         int keys, len;\r
 501 \r
 502                         strcpy(tmp, (which & 0x1000) ? "LOAD STATE? " : "OVERWRITE SAVE? ");\r
 503                         len = strlen(tmp);\r
 504                         nm = in_get_key_name(-1, -PBTN_MA3);\r
 505                         snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);\r
 506                         len = strlen(tmp);\r
 507                         nm = in_get_key_name(-1, -PBTN_MBACK);\r
 508                         snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);\r
 509 \r
 510                         blit("", tmp);\r
 511 \r
 512                         in_set_blocking(1);\r
 513                         while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK));   // wait for release\r
 514                         while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) ); // .. press\r
 515                         if (keys & PBTN_MBACK)\r
 516                                 do_it = 0;\r
 517                         while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK));   // .. release\r
 518                         in_set_blocking(0);\r
 519 \r
 520                         clearArea(0);\r
 521                 }\r
 522                 if (do_it) {\r
 523                         osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");\r
 524                         PicoStateProgressCB = emu_state_cb;\r
 525                         gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);\r
 526                         emu_SaveLoadGame((which & 0x1000) >> 12, 0);\r
 527                         PicoStateProgressCB = NULL;\r
 528                 }\r
 529 \r
 530                 reset_timing = 1;\r
 531         }\r
 532         if (which & 0x0400) // switch renderer\r
 533         {\r
 534                 if      (  PicoOpt&0x10)             { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }\r
 535                 else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;\r
 536                 else   currentConfig.EmuOpt &= ~0x80;\r
 537 \r
 538                 vidResetMode();\r
 539 \r
 540                 if (PicoOpt&0x10) {\r
 541                         strcpy(noticeMsg, " 8bit fast renderer");\r
 542                 } else if (currentConfig.EmuOpt&0x80) {\r
 543                         strcpy(noticeMsg, "16bit accurate renderer");\r
 544                 } else {\r
 545                         strcpy(noticeMsg, " 8bit accurate renderer");\r
 546                 }\r
 547 \r
 548                 emu_noticeMsgUpdated();\r
 549         }\r
 550         if (which & 0x0300)\r
 551         {\r
 552                 if(which&0x0200) {\r
 553                         state_slot -= 1;\r
 554                         if(state_slot < 0) state_slot = 9;\r
 555                 } else {\r
 556                         state_slot += 1;\r
 557                         if(state_slot > 9) state_slot = 0;\r
 558                 }\r
 559                 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");\r
 560                 emu_noticeMsgUpdated();\r
 561         }\r
 562         if (which & 0x0080) {\r
 563                 engineState = PGS_Menu;\r
 564         }\r
 565 }\r
 566 \r
 567 static void updateKeys(void)\r
 568 {\r
 569         unsigned int allActions[2] = { 0, 0 }, events;\r
 570         static unsigned int prevEvents = 0;\r
 571 \r
 572         /* FIXME: player2 */\r
 573         allActions[0] = in_update();\r
 574 \r
 575         PicoPad[0] = allActions[0] & 0xfff;\r
 576         PicoPad[1] = allActions[1] & 0xfff;\r
 577 \r
 578         if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);\r
 579         if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);\r
 580 \r
 581         events = (allActions[0] | allActions[1]) >> 16;\r
 582 \r
 583         // volume is treated in special way and triggered every frame\r
 584         if (events & 0x6000)\r
 585                 update_volume(1, events & 0x2000);\r
 586 \r
 587         if ((events ^ prevEvents) & 0x40) {\r
 588                 emu_changeFastForward(events & 0x40);\r
 589                 update_volume(0, 0);\r
 590                 reset_timing = 1;\r
 591         }\r
 592 \r
 593         events &= ~prevEvents;\r
 594 \r
 595         if (PicoAHW == PAHW_PICO)\r
 596                 RunEventsPico(events);\r
 597         if (events) RunEvents(events);\r
 598         if (movie_data) emu_updateMovie();\r
 599 \r
 600         prevEvents = (allActions[0] | allActions[1]) >> 16;\r
 601 }\r
 602 \r
 603 \r
 604 static void updateSound(int len)\r
 605 {\r
 606         if (PicoOpt&8) len<<=1;\r
 607 \r
 608         /* avoid writing audio when lagging behind to prevent audio lag */\r
 609         if (PicoSkipFrame != 2)\r
 610                 sndout_oss_write(PsndOut, len<<1);\r
 611 }\r
 612 \r
 613 void emu_startSound(void)\r
 614 {\r
 615         static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;\r
 616         int target_fps = Pico.m.pal ? 50 : 60;\r
 617 \r
 618         PsndOut = NULL;\r
 619 \r
 620         // prepare sound stuff\r
 621         if (currentConfig.EmuOpt & 4)\r
 622         {\r
 623                 int snd_excess_add;\r
 624                 if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old ||\r
 625                                 ((PicoOpt&0x200) && crashed_940)) {\r
 626                         PsndRerate(Pico.m.frame_count ? 1 : 0);\r
 627                 }\r
 628                 snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;\r
 629                 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
 630                         PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);\r
 631                 sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);\r
 632                 sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
 633                 PicoWriteSound = updateSound;\r
 634                 update_volume(0, 0);\r
 635                 memset(sndBuffer, 0, sizeof(sndBuffer));\r
 636                 PsndOut = sndBuffer;\r
 637                 PsndRate_old = PsndRate;\r
 638                 PicoOpt_old  = PicoOpt;\r
 639                 pal_old = Pico.m.pal;\r
 640         }\r
 641 }\r
 642 \r
 643 void emu_endSound(void)\r
 644 {\r
 645 }\r
 646 \r
 647 /* wait until we can write more sound */\r
 648 void emu_waitSound(void)\r
 649 {\r
 650         // don't need to do anything, writes will block by themselves\r
 651 }\r
 652 \r
 653 \r
 654 static void SkipFrame(int do_audio)\r
 655 {\r
 656         PicoSkipFrame=do_audio ? 1 : 2;\r
 657         PicoFrame();\r
 658         PicoSkipFrame=0;\r
 659 }\r
 660 \r
 661 \r
 662 void emu_forcedFrame(int opts)\r
 663 {\r
 664         int po_old = PicoOpt;\r
 665         int eo_old = currentConfig.EmuOpt;\r
 666 \r
 667         PicoOpt &= ~0x10;\r
 668         PicoOpt |= opts|POPT_ACC_SPRITES; // acc_sprites\r
 669         currentConfig.EmuOpt |= 0x80;\r
 670 \r
 671         //vidResetMode();\r
 672         PicoDrawSetColorFormat(1);\r
 673         PicoScanBegin = EmuScanBegin16;\r
 674         Pico.m.dirtyPal = 1;\r
 675         PicoFrameDrawOnly();\r
 676 \r
 677 /*\r
 678         if (!(Pico.video.reg[12]&1)) {\r
 679                 vidCpyM2 = vidCpyM2_32col;\r
 680                 clearArea(1);\r
 681         } else  vidCpyM2 = vidCpyM2_40col;\r
 682 \r
 683         vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);\r
 684         vidConvCpyRGB32(localPal, Pico.cram, 0x40);\r
 685         gp2x_video_setpalette(localPal, 0x40);\r
 686 */\r
 687         PicoOpt = po_old;\r
 688         currentConfig.EmuOpt = eo_old;\r
 689 }\r
 690 \r
 691 void emu_platformDebugCat(char *str)\r
 692 {\r
 693         // nothing\r
 694 }\r
 695 \r
 696 static void simpleWait(int thissec, int lim_time)\r
 697 {\r
 698         struct timeval tval;\r
 699 \r
 700         spend_cycles(1024);\r
 701         gettimeofday(&tval, 0);\r
 702         if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
 703 \r
 704         while (tval.tv_usec < lim_time)\r
 705         {\r
 706                 spend_cycles(1024);\r
 707                 gettimeofday(&tval, 0);\r
 708                 if (thissec != tval.tv_sec) tval.tv_usec+=1000000;\r
 709         }\r
 710 }\r
 711 \r
 712 \r
 713 #if 0\r
 714 static void tga_dump(void)\r
 715 {\r
 716 #define BYTE unsigned char\r
 717 #define WORD unsigned short\r
 718         struct\r
 719         {\r
 720                 BYTE IDLength;        /* 00h  Size of Image ID field */\r
 721                 BYTE ColorMapType;    /* 01h  Color map type */\r
 722                 BYTE ImageType;       /* 02h  Image type code */\r
 723                 WORD CMapStart;       /* 03h  Color map origin */\r
 724                 WORD CMapLength;      /* 05h  Color map length */\r
 725                 BYTE CMapDepth;       /* 07h  Depth of color map entries */\r
 726                 WORD XOffset;         /* 08h  X origin of image */\r
 727                 WORD YOffset;         /* 0Ah  Y origin of image */\r
 728                 WORD Width;           /* 0Ch  Width of image */\r
 729                 WORD Height;          /* 0Eh  Height of image */\r
 730                 BYTE PixelDepth;      /* 10h  Image pixel size */\r
 731                 BYTE ImageDescriptor; /* 11h  Image descriptor byte */\r
 732         } __attribute__((packed)) TGAHEAD;\r
 733         static unsigned short oldscr[320*240];\r
 734         FILE *f; char name[128]; int i;\r
 735 \r
 736         memset(&TGAHEAD, 0, sizeof(TGAHEAD));\r
 737         TGAHEAD.ImageType = 2;\r
 738         TGAHEAD.Width = 320;\r
 739         TGAHEAD.Height = 240;\r
 740         TGAHEAD.PixelDepth = 16;\r
 741         TGAHEAD.ImageDescriptor = 2<<4; // image starts at top-left\r
 742 \r
 743 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?\r
 744 \r
 745         for (i = 0; i < 320*240; i++)\r
 746                 if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;\r
 747         if (i < 320*240)\r
 748         {\r
 749                 for (i = 0; i < 320*240; i++)\r
 750                         oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);\r
 751                 sprintf(name, "%05i.tga", Pico.m.frame_count);\r
 752                 f = fopen(name, "wb");\r
 753                 if (!f) { printf("!f\n"); exit(1); }\r
 754                 fwrite(&TGAHEAD, 1, sizeof(TGAHEAD), f);\r
 755                 fwrite(oldscr, 1, 320*240*2, f);\r
 756                 fclose(f);\r
 757         }\r
 758 }\r
 759 #endif\r
 760 \r
 761 \r
 762 void emu_Loop(void)\r
 763 {\r
 764         static int gp2x_old_clock = -1, EmuOpt_old = 0;\r
 765         char fpsbuff[24]; // fps count c string\r
 766         struct timeval tval; // timing\r
 767         int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync\r
 768         int  frames_done,  frames_shown,  thissec; // actual frames\r
 769         int oldmodes = 0, target_fps, target_frametime, lim_time, vsync_offset, i;\r
 770         char *notice = 0;\r
 771 \r
 772         printf("entered emu_Loop()\n");\r
 773 \r
 774         if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_RAM_TIMINGS) {\r
 775                 if (currentConfig.EmuOpt & EOPT_RAM_TIMINGS)\r
 776                         /* craigix: --cas 2 --trc 6 --tras 4 --twr 1 --tmrd 1 --trfc 1 --trp 2 --trcd 2 */\r
 777                         set_ram_timings(2, 6, 4, 1, 1, 1, 2, 2);\r
 778                 else\r
 779                         unset_ram_timings();\r
 780         }\r
 781 \r
 782         if (gp2x_old_clock < 0)\r
 783                 gp2x_old_clock = default_cpu_clock;\r
 784         if (currentConfig.CPUclock < 0)\r
 785                 currentConfig.CPUclock = default_cpu_clock;\r
 786         if (gp2x_old_clock != currentConfig.CPUclock) {\r
 787                 printf("changing clock to %i...", currentConfig.CPUclock); fflush(stdout);\r
 788                 gp2x_set_cpuclk(currentConfig.CPUclock);\r
 789                 gp2x_old_clock = currentConfig.CPUclock;\r
 790                 printf(" done\n");\r
 791         }\r
 792 \r
 793         if (gp2x_old_gamma != currentConfig.gamma || (EmuOpt_old&0x1000) != (currentConfig.EmuOpt&0x1000)) {\r
 794                 set_lcd_gamma(currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
 795                 gp2x_old_gamma = currentConfig.gamma;\r
 796                 printf("updated gamma to %i, A_SN's curve: %i\n", currentConfig.gamma, !!(currentConfig.EmuOpt&0x1000));\r
 797         }\r
 798 \r
 799         if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_PSYNC) {\r
 800                 if (currentConfig.EmuOpt & EOPT_PSYNC)\r
 801                         set_lcd_custom_rate(Pico.m.pal);\r
 802                 else\r
 803                         unset_lcd_custom_rate();\r
 804         }\r
 805 \r
 806         if ((EmuOpt_old ^ currentConfig.EmuOpt) & EOPT_MMUHACK)\r
 807                 gp2x_make_fb_bufferable(currentConfig.EmuOpt & EOPT_MMUHACK);\r
 808 \r
 809         EmuOpt_old = currentConfig.EmuOpt;\r
 810         fpsbuff[0] = 0;\r
 811 \r
 812         // make sure we are in correct mode\r
 813         vidResetMode();\r
 814         scaling_update();\r
 815         Pico.m.dirtyPal = 1;\r
 816         oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;\r
 817 \r
 818         // pal/ntsc might have changed, reset related stuff\r
 819         target_fps = Pico.m.pal ? 50 : 60;\r
 820         target_frametime = 1000000/target_fps;\r
 821         reset_timing = 1;\r
 822 \r
 823         emu_startSound();\r
 824 \r
 825         // prepare CD buffer\r
 826         if (PicoAHW & PAHW_MCD) PicoCDBufferInit();\r
 827 \r
 828         // calc vsync offset to sync timing code with vsync\r
 829         if (currentConfig.EmuOpt&0x2000) {\r
 830                 gettimeofday(&tval, 0);\r
 831                 gp2x_video_wait_vsync();\r
 832                 gettimeofday(&tval, 0);\r
 833                 vsync_offset = tval.tv_usec;\r
 834                 while (vsync_offset >= target_frametime)\r
 835                         vsync_offset -= target_frametime;\r
 836                 if (!vsync_offset) vsync_offset++;\r
 837                 printf("vsync_offset: %i\n", vsync_offset);\r
 838         } else\r
 839                 vsync_offset = 0;\r
 840 \r
 841         frames_done = frames_shown = thissec =\r
 842         pframes_done = pframes_shown = pthissec = 0;\r
 843 \r
 844         // loop\r
 845         while (engineState == PGS_Running)\r
 846         {\r
 847                 int modes;\r
 848 \r
 849                 gettimeofday(&tval, 0);\r
 850                 if (reset_timing) {\r
 851                         reset_timing = 0;\r
 852                         pthissec = tval.tv_sec;\r
 853                         pframes_shown = pframes_done = tval.tv_usec/target_frametime;\r
 854                 }\r
 855 \r
 856                 // show notice message?\r
 857                 if (noticeMsgTime.tv_sec)\r
 858                 {\r
 859                         static int noticeMsgSum;\r
 860                         if((tval.tv_sec*1000000+tval.tv_usec) - (noticeMsgTime.tv_sec*1000000+noticeMsgTime.tv_usec) > 2000000) { // > 2.0 sec\r
 861                                 noticeMsgTime.tv_sec = noticeMsgTime.tv_usec = 0;\r
 862                                 clearArea(0);\r
 863                                 notice = 0;\r
 864                         } else {\r
 865                                 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];\r
 866                                 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }\r
 867                                 notice = noticeMsg;\r
 868                         }\r
 869                 }\r
 870 \r
 871                 // check for mode changes\r
 872                 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);\r
 873                 if (modes != oldmodes)\r
 874                 {\r
 875                         int scalex = 320;\r
 876                         osd_fps_x = OSD_FPS_X;\r
 877                         if (modes & 4) {\r
 878                                 vidCpyM2 = vidCpyM2_40col;\r
 879                         } else {\r
 880                                 if (PicoOpt & 0x100) {\r
 881                                         vidCpyM2 = vidCpyM2_32col_nobord;\r
 882                                         scalex = 256;\r
 883                                         osd_fps_x = OSD_FPS_X - 64;\r
 884                                 } else {\r
 885                                         vidCpyM2 = vidCpyM2_32col;\r
 886                                 }\r
 887                         }\r
 888                         if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode\r
 889                              gp2x_video_RGB_setscaling(8, scalex, 224);\r
 890                         else gp2x_video_RGB_setscaling(0, scalex, 240);\r
 891                         oldmodes = modes;\r
 892                         clearArea(1);\r
 893                 }\r
 894 \r
 895                 // second changed?\r
 896                 if (thissec != tval.tv_sec)\r
 897                 {\r
 898 #ifdef BENCHMARK\r
 899                         static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
 900                         if (++bench == 10) {\r
 901                                 bench = 0;\r
 902                                 bench_fps_s = bench_fps;\r
 903                                 bf[bfp++ & 3] = bench_fps;\r
 904                                 bench_fps = 0;\r
 905                         }\r
 906                         bench_fps += frames_shown;\r
 907                         sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
 908 #else\r
 909                         if (currentConfig.EmuOpt & 2) {\r
 910                                 sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
 911                                 if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
 912                         }\r
 913 #endif\r
 914                         frames_shown = frames_done = 0;\r
 915                         thissec = tval.tv_sec;\r
 916                 }\r
 917 #ifdef PFRAMES\r
 918                 sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
 919 #endif\r
 920 \r
 921                 if (pthissec != tval.tv_sec)\r
 922                 {\r
 923                         if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
 924                                 pframes_done = pframes_shown = 0;\r
 925                         } else {\r
 926                                 // it is quite common for this implementation to leave 1 fame unfinished\r
 927                                 // when second changes, but we don't want buffer to starve.\r
 928                                 if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
 929                                         updateKeys();\r
 930                                         SkipFrame(1); pframes_done++;\r
 931                                 }\r
 932 \r
 933                                 pframes_done  -= target_fps; if (pframes_done  < 0) pframes_done  = 0;\r
 934                                 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
 935                                 if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
 936                         }\r
 937                         pthissec = tval.tv_sec;\r
 938                 }\r
 939 \r
 940                 lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
 941                 if (currentConfig.Frameskip >= 0) // frameskip enabled\r
 942                 {\r
 943                         for(i = 0; i < currentConfig.Frameskip; i++) {\r
 944                                 updateKeys();\r
 945                                 SkipFrame(1); pframes_done++; frames_done++;\r
 946                                 if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
 947                                         gettimeofday(&tval, 0);\r
 948                                         if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
 949                                         if (tval.tv_usec < lim_time) { // we are too fast\r
 950                                                 simpleWait(pthissec, lim_time);\r
 951                                         }\r
 952                                 }\r
 953                                 lim_time += target_frametime;\r
 954                         }\r
 955                 }\r
 956                 else if (tval.tv_usec > lim_time) // auto frameskip\r
 957                 {\r
 958                         // no time left for this frame - skip\r
 959                         if (tval.tv_usec - lim_time >= 300000) {\r
 960                                 /* something caused a slowdown for us (disk access? cache flush?)\r
 961                                  * try to recover by resetting timing... */\r
 962                                 reset_timing = 1;\r
 963                                 continue;\r
 964                         }\r
 965                         updateKeys();\r
 966                         SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
 967                         continue;\r
 968                 }\r
 969 \r
 970                 updateKeys();\r
 971                 PicoFrame();\r
 972 \r
 973                 // check time\r
 974                 gettimeofday(&tval, 0);\r
 975                 if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
 976 \r
 977                 if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
 978                         reset_timing = 1;\r
 979                 else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
 980                 {\r
 981                         // sleep or vsync if we are still too fast\r
 982                         // usleep sleeps for ~20ms minimum, so it is not a solution here\r
 983                         if (!reset_timing && tval.tv_usec < lim_time)\r
 984                         {\r
 985                                 // we are too fast\r
 986                                 if (vsync_offset) {\r
 987                                         if (lim_time - tval.tv_usec > target_frametime/2)\r
 988                                                 simpleWait(pthissec, lim_time - target_frametime/4);\r
 989                                         gp2x_video_wait_vsync();\r
 990                                 } else {\r
 991                                         simpleWait(pthissec, lim_time);\r
 992                                 }\r
 993                         }\r
 994                 }\r
 995 \r
 996                 blit(fpsbuff, notice);\r
 997 \r
 998                 pframes_done++; pframes_shown++;\r
 999                  frames_done++;  frames_shown++;\r
1000         }\r
1001 \r
1002         emu_changeFastForward(0);\r
1003 \r
1004         if (PicoAHW & PAHW_MCD) PicoCDBufferFree();\r
1005 \r
1006         // save SRAM\r
1007         if((currentConfig.EmuOpt & 1) && SRam.changed) {\r
1008                 emu_state_cb("Writing SRAM/BRAM..");\r
1009                 emu_SaveLoadGame(0, 1);\r
1010                 SRam.changed = 0;\r
1011         }\r
1012 \r
1013         // if in 8bit mode, generate 16bit image for menu background\r
1014         if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))\r
1015                 emu_forcedFrame(POPT_EN_SOFTSCALE);\r
1016 }\r
1017 \r
1018 \r
1019 void emu_ResetGame(void)\r
1020 {\r
1021         PicoReset();\r
1022         reset_timing = 1;\r
1023 }\r
1024 \r
1025 const char *plat_get_credits(void)\r
1026 {\r
1027         return "PicoDrive v" VERSION " (c) notaz, 2006-2009\n\n\n"\r
1028                 "Credits:\n"\r
1029                 "fDave: Cyclone 68000 core,\n"\r
1030                 "      base code of PicoDrive\n"\r
1031                 "Reesy & FluBBa: DrZ80 core\n"\r
1032                 "MAME devs: YM2612 and SN76496 cores\n"\r
1033                 "rlyeh and others: minimal SDK\n"\r
1034                 "Squidge: mmuhack\n"\r
1035                 "Dzz: ARM940 sample\n"\r
1036                 "GnoStiC / Puck2099: USB joy code\n"\r
1037                 "craigix: GP2X hardware\n"\r
1038                 "ketchupgun: skin design\n"\r
1039                 "\n"\r
1040                 "special thanks (for docs, ideas):\n"\r
1041                 " Charles MacDonald, Haze,\n"\r
1042                 " Stephane Dallongeville,\n"\r
1043                 " Lordus, Exophase, Rokas,\n"\r
1044                 " Nemesis, Tasco Deluxe";\r
1045 }\r