1 // (c) Copyright 2006-2007 notaz, All rights reserved.
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2 // Free for non-commercial use.
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4 // For commercial use, separate licencing terms must be obtained.
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8 #include <ctype.h> // tolower
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16 #include "lprintf.h"
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19 #include <Pico/PicoInt.h>
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20 #include <Pico/Patch.h>
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21 #include <zlib/zlib.h>
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23 #if defined(__GP2X__)
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24 #include "../gp2x/gp2x.h"
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25 #define SCREEN_WIDTH 320
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26 #define SCREEN_BUFFER gp2x_screen
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27 #elif defined(__GIZ__)
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28 #include "../gizmondo/giz.h"
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29 #define SCREEN_WIDTH 321
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30 #define SCREEN_BUFFER giz_screen
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32 #include "../psp/psp.h"
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33 #define SCREEN_WIDTH 512
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34 #define SCREEN_BUFFER psp_screen
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37 char *PicoConfigFile = "config.cfg";
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38 currentConfig_t currentConfig, defaultConfig;
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42 int config_slot = 0, config_slot_current = 0;
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43 char lastRomFile[512];
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44 int kb_combo_keys = 0, kb_combo_acts = 0; // keys and actions which need button combos
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46 unsigned char *movie_data = NULL;
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47 static int movie_size = 0;
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49 // provided by platform code:
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50 extern char romFileName[];
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51 extern void emu_noticeMsgUpdated(void);
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52 extern void emu_getMainDir(char *dst, int len);
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53 extern void emu_setDefaultConfig(void);
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54 extern void menu_romload_prepare(const char *rom_name);
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55 extern void menu_romload_end(void);
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59 static void strlwr_(char* string)
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61 while ( (*string++ = (char)tolower(*string)) );
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64 static int try_rfn_cut(void)
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69 p = romFileName + strlen(romFileName) - 1;
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70 for (; p > romFileName; p--)
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71 if (*p == '.') break;
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74 if((tmp = fopen(romFileName, "rb"))) {
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81 static void get_ext(char *file, char *ext)
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85 p = file + strlen(file) - 4;
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86 if (p < file) p = file;
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92 char *biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };
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93 char *biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303" };
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94 char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
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96 int emu_findBios(int region, char **bios_file)
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98 static char bios_path[1024];
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103 if (region == 4) { // US
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104 files = biosfiles_us;
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105 count = sizeof(biosfiles_us) / sizeof(char *);
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106 } else if (region == 8) { // EU
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107 files = biosfiles_eu;
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108 count = sizeof(biosfiles_eu) / sizeof(char *);
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109 } else if (region == 1 || region == 2) {
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110 files = biosfiles_jp;
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111 count = sizeof(biosfiles_jp) / sizeof(char *);
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116 for (i = 0; i < count; i++)
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118 emu_getMainDir(bios_path, sizeof(bios_path));
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119 strcat(bios_path, files[i]);
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120 strcat(bios_path, ".bin");
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121 f = fopen(bios_path, "rb");
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124 bios_path[strlen(bios_path) - 4] = 0;
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125 strcat(bios_path, ".zip");
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126 f = fopen(bios_path, "rb");
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131 lprintf("using bios: %s\n", bios_path);
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133 if (bios_file) *bios_file = bios_path;
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136 sprintf(menuErrorMsg, "no %s BIOS files found, read docs",
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137 region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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138 lprintf("%s\n", menuErrorMsg);
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143 /* check if the name begins with BIOS name */
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145 static int emu_isBios(const char *name)
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148 for (i = 0; i < sizeof(biosfiles_us)/sizeof(biosfiles_us[0]); i++)
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149 if (strstr(name, biosfiles_us[i]) != NULL) return 1;
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150 for (i = 0; i < sizeof(biosfiles_eu)/sizeof(biosfiles_eu[0]); i++)
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151 if (strstr(name, biosfiles_eu[i]) != NULL) return 1;
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152 for (i = 0; i < sizeof(biosfiles_jp)/sizeof(biosfiles_jp[0]); i++)
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153 if (strstr(name, biosfiles_jp[i]) != NULL) return 1;
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158 static unsigned char id_header[0x100];
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160 /* checks if romFileName points to valid MegaCD image
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161 * if so, checks for suitable BIOS */
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162 int emu_cdCheck(int *pregion)
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164 unsigned char buf[32];
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166 int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe
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168 cd_f = pm_open(romFileName);
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169 if (!cd_f) return 0; // let the upper level handle this
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171 if (pm_read(buf, 32, cd_f) != 32) {
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176 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1; // Sega CD (ISO)
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177 if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2; // Sega CD (BIN)
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183 pm_seek(cd_f, (type == 1) ? 0x100 : 0x110, SEEK_SET);
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184 pm_read(id_header, sizeof(id_header), cd_f);
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186 /* it seems we have a CD image here. Try to detect region now.. */
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187 pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
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188 pm_read(buf, 1, cd_f);
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191 if (buf[0] == 0x64) region = 8; // EU
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192 if (buf[0] == 0xa1) region = 1; // JAP
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194 lprintf("detected %s Sega/Mega CD image with %s region\n",
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195 type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
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197 if (pregion != NULL) *pregion = region;
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202 static int extract_text(char *dest, unsigned char *src, int len, int swab)
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207 if (swab) swab = 1;
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209 for (i = len - 1; i >= 0; i--)
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211 if (src[i^swab] != ' ') break;
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215 for (i = 0; i < len; i++)
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217 unsigned char s = src[i^swab];
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218 if (s >= 0x20 && s < 0x7f && s != '#' && s != '|' &&
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219 s != '[' && s != ']' && s != '\\')
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225 sprintf(p, "\\%02x", s);
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233 char *emu_makeRomId(void)
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235 static char id_string[3+0x11+0x11+0x30+16];
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239 strcpy(id_string, "CD|");
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242 else strcpy(id_string, "MD|");
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245 pos += extract_text(id_string + pos, id_header + 0x80, 0x0e, swab); // serial
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246 id_string[pos] = '|'; pos++;
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247 pos += extract_text(id_string + pos, id_header + 0xf0, 0x03, swab); // region
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248 id_string[pos] = '|'; pos++;
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249 pos += extract_text(id_string + pos, id_header + 0x50, 0x30, swab); // overseas name
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250 id_string[pos] = 0;
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255 int emu_ReloadRom(void)
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257 unsigned int rom_size = 0;
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258 char *used_rom_name = romFileName;
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259 unsigned char *rom_data = NULL;
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262 int ret, cd_state, cd_region, cfg_loaded = 0;
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264 lprintf("emu_ReloadRom(%s)\n", romFileName);
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266 get_ext(romFileName, ext);
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268 // detect wrong extensions
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269 if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz
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270 sprintf(menuErrorMsg, "Not a ROM selected.");
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276 // check for movie file
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281 if (!strcmp(ext, ".gmv"))
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283 // check for both gmv and rom
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285 FILE *movie_file = fopen(romFileName, "rb");
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287 sprintf(menuErrorMsg, "Failed to open movie.");
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290 fseek(movie_file, 0, SEEK_END);
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291 movie_size = ftell(movie_file);
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292 fseek(movie_file, 0, SEEK_SET);
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293 if(movie_size < 64+3) {
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294 sprintf(menuErrorMsg, "Invalid GMV file.");
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295 fclose(movie_file);
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298 movie_data = malloc(movie_size);
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299 if(movie_data == NULL) {
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300 sprintf(menuErrorMsg, "low memory.");
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301 fclose(movie_file);
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304 fread(movie_data, 1, movie_size, movie_file);
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305 fclose(movie_file);
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306 if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
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307 sprintf(menuErrorMsg, "Invalid GMV file.");
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310 dummy = try_rfn_cut() || try_rfn_cut();
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312 sprintf(menuErrorMsg, "Could't find a ROM for movie.");
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315 get_ext(romFileName, ext);
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317 else if (!strcmp(ext, ".pat")) {
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319 PicoPatchLoad(romFileName);
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320 dummy = try_rfn_cut() || try_rfn_cut();
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322 sprintf(menuErrorMsg, "Could't find a ROM to patch.");
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325 get_ext(romFileName, ext);
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328 if ((PicoMCD & 1) && Pico_mcd != NULL)
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331 // check for MegaCD image
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332 cd_state = emu_cdCheck(&cd_region);
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336 // valid CD image, check for BIOS..
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338 // we need to have config loaded at this point
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339 ret = emu_ReadConfig(1, 1);
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340 if (!ret) emu_ReadConfig(0, 1);
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343 if (PicoRegionOverride) {
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344 cd_region = PicoRegionOverride;
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345 lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");
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347 if (!emu_findBios(cd_region, &used_rom_name)) {
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353 get_ext(used_rom_name, ext);
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357 if (PicoMCD & 1) Stop_CD();
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361 rom = pm_open(used_rom_name);
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363 sprintf(menuErrorMsg, "Failed to open rom.");
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367 menu_romload_prepare(used_rom_name); // also CD load
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372 if ( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {
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373 sprintf(menuErrorMsg, "PicoCartLoad() failed.");
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374 lprintf("%s\n", menuErrorMsg);
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376 menu_romload_end();
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381 // detect wrong files (Pico crashes on very small files), also see if ROM EP is good
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382 if (rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||
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383 ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {
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384 if (rom_data) free(rom_data);
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385 sprintf(menuErrorMsg, "Not a ROM selected.");
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386 menu_romload_end();
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390 // load config for this ROM (do this before insert to get correct region)
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392 memcpy(id_header, rom_data + 0x100, sizeof(id_header));
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394 ret = emu_ReadConfig(1, 1);
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395 if (!ret) emu_ReadConfig(0, 1);
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398 lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);
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399 if (PicoCartInsert(rom_data, rom_size)) {
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400 sprintf(menuErrorMsg, "Failed to load ROM.");
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401 menu_romload_end();
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405 Pico.m.frame_count = 0;
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407 // insert CD if it was detected
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408 if (cd_state > 0) {
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409 ret = Insert_CD(romFileName, cd_state == 2);
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411 sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");
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412 lprintf("%s\n", menuErrorMsg);
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413 menu_romload_end();
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418 menu_romload_end();
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421 PicoPatchPrepare();
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425 // additional movie stuff
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427 if(movie_data[0x14] == '6')
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428 PicoOpt |= 0x20; // 6 button pad
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429 else PicoOpt &= ~0x20;
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430 PicoOpt |= 0x10040; // accurate timing, no VDP fifo timing
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431 if(movie_data[0xF] >= 'A') {
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432 if(movie_data[0x16] & 0x80) {
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433 PicoRegionOverride = 8;
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435 PicoRegionOverride = 4;
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438 // TODO: bits 6 & 5
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440 movie_data[0x18+30] = 0;
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441 sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);
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445 PicoOpt &= ~0x10000;
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447 strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");
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449 strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");
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452 emu_noticeMsgUpdated();
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454 // load SRAM for this ROM
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455 if (currentConfig.EmuOpt & 1)
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456 emu_SaveLoadGame(1, 1);
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458 strncpy(lastRomFile, romFileName, sizeof(lastRomFile)-1);
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459 lastRomFile[sizeof(lastRomFile)-1] = 0;
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465 static void romfname_ext(char *dst, const char *prefix, const char *ext)
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468 int prefix_len = 0;
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470 // make save filename
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471 for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;
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474 strcpy(dst, prefix);
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475 prefix_len = strlen(prefix);
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477 strncpy(dst + prefix_len, p, 511-prefix_len);
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479 if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;
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480 if (ext) strcat(dst, ext);
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484 int emu_ReadConfig(int game, int no_defaults)
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493 emu_setDefaultConfig();
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494 strncpy(cfg, PicoConfigFile, 511);
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495 if (config_slot != 0)
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497 char *p = strrchr(cfg, '.');
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498 if (p == NULL) p = cfg + strlen(cfg);
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499 sprintf(p, ".%i.cfg", config_slot);
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502 ret = config_readsect(cfg, NULL);
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506 char *sect = emu_makeRomId();
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508 // try new .cfg way
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509 if (config_slot != 0)
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510 sprintf(cfg, "game.%i.cfg", config_slot);
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511 else strcpy(cfg, "game.cfg");
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514 if (config_havesect(cfg, sect)) {
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515 int vol = currentConfig.volume;
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516 emu_setDefaultConfig();
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517 ret = config_readsect(cfg, sect);
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518 currentConfig.volume = vol; // make vol global (bah)
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523 // fall back to old
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525 if (config_slot != 0)
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526 sprintf(extbuf, ".%i.pbcfg", config_slot);
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527 else strcpy(extbuf, ".pbcfg");
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528 romfname_ext(cfg, "cfg/", extbuf);
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529 f = fopen(cfg, "rb");
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531 romfname_ext(cfg, NULL, ".pbcfg");
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532 f = fopen(cfg, "rb");
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536 fseek(f, 512, SEEK_SET); // skip unused lrom buffer
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537 bread = fread(¤tConfig, 1, sizeof(currentConfig), f);
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538 lprintf("emu_ReadConfig: %s %s\n", cfg, bread > 0 ? "(ok)" : "(failed)");
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544 PicoOpt = currentConfig.s_PicoOpt;
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545 PsndRate = currentConfig.s_PsndRate;
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546 PicoRegionOverride = currentConfig.s_PicoRegion;
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547 PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
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548 // PicoCDBuffers = currentConfig.s_PicoCDBuffers; // ignore in this case
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553 lprintf("loaded cfg from sect \"%s\"\n", sect);
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557 // some sanity checks
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558 if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;
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560 if (currentConfig.gamma < -4 || currentConfig.gamma > 16) currentConfig.gamma = 0;
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562 if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;
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564 if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;
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566 // if volume keys are unbound, bind them to volume control
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567 if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {
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568 currentConfig.KeyBinds[23] = 1<<29; // vol up
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569 currentConfig.KeyBinds[22] = 1<<30; // vol down
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572 if (ret == 0) config_slot_current = config_slot;
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577 int emu_WriteConfig(int is_game)
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579 char cfg[512], *game_sect = NULL;
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580 int ret, write_lrom = 0;
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584 strncpy(cfg, PicoConfigFile, 511);
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585 if (config_slot != 0)
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587 char *p = strrchr(cfg, '.');
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588 if (p == NULL) p = cfg + strlen(cfg);
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589 sprintf(p, ".%i.cfg", config_slot);
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594 if (config_slot != 0)
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595 sprintf(cfg, "game.%i.cfg", config_slot);
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596 else strcpy(cfg, "game.cfg");
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597 game_sect = emu_makeRomId();
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598 lprintf("emu_WriteConfig: sect \"%s\"\n", game_sect);
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601 lprintf("emu_WriteConfig: %s ", cfg);
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602 ret = config_writesect(cfg, game_sect);
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603 if (write_lrom) config_writelrom(cfg);
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607 lprintf((ret == 0) ? "(ok)\n" : "(failed)\n");
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609 if (ret == 0) config_slot_current = config_slot;
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614 void emu_textOut8(int x, int y, const char *text)
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616 int i,l,len=strlen(text);
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617 unsigned char *screen = (unsigned char *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;
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619 /* always using built-in font */
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620 for (i = 0; i < len; i++)
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624 unsigned char fd = fontdata8x8[((text[i])*8)+l];
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625 if (fd&0x80) screen[l*SCREEN_WIDTH+0]=0xf0;
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626 if (fd&0x40) screen[l*SCREEN_WIDTH+1]=0xf0;
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627 if (fd&0x20) screen[l*SCREEN_WIDTH+2]=0xf0;
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628 if (fd&0x10) screen[l*SCREEN_WIDTH+3]=0xf0;
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629 if (fd&0x08) screen[l*SCREEN_WIDTH+4]=0xf0;
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630 if (fd&0x04) screen[l*SCREEN_WIDTH+5]=0xf0;
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631 if (fd&0x02) screen[l*SCREEN_WIDTH+6]=0xf0;
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632 if (fd&0x01) screen[l*SCREEN_WIDTH+7]=0xf0;
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638 void emu_textOut16(int x, int y, const char *text)
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640 int i,l,len=strlen(text);
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641 unsigned short *screen = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;
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643 for (i = 0; i < len; i++)
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647 unsigned char fd = fontdata8x8[((text[i])*8)+l];
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648 if(fd&0x80) screen[l*SCREEN_WIDTH+0]=0xffff;
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649 if(fd&0x40) screen[l*SCREEN_WIDTH+1]=0xffff;
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650 if(fd&0x20) screen[l*SCREEN_WIDTH+2]=0xffff;
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651 if(fd&0x10) screen[l*SCREEN_WIDTH+3]=0xffff;
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652 if(fd&0x08) screen[l*SCREEN_WIDTH+4]=0xffff;
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653 if(fd&0x04) screen[l*SCREEN_WIDTH+5]=0xffff;
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654 if(fd&0x02) screen[l*SCREEN_WIDTH+6]=0xffff;
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655 if(fd&0x01) screen[l*SCREEN_WIDTH+7]=0xffff;
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661 void emu_findKeyBindCombos(void)
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665 // find out which keys and actions are combos
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666 kb_combo_keys = kb_combo_acts = 0;
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667 for (act = 0; act < 32; act++)
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669 int keyc = 0, keyc2 = 0;
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670 if (act == 16 || act == 17) continue; // player2 flag
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673 for (u = 0; u < 32; u++)
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674 if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;
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678 for (u = 0; u < 32; u++)
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679 if ((currentConfig.KeyBinds[u] & 0x30000) == 0 && // pl. 1
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680 (currentConfig.KeyBinds[u] & (1 << act))) keyc++;
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681 for (u = 0; u < 32; u++)
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682 if ((currentConfig.KeyBinds[u] & 0x30000) == 1 && // pl. 2
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683 (currentConfig.KeyBinds[u] & (1 << act))) keyc2++;
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684 if (keyc2 > keyc) keyc = keyc2;
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688 // loop again and mark those keys and actions as combo
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689 for (u = 0; u < 32; u++)
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691 if (currentConfig.KeyBinds[u] & (1 << act)) {
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692 kb_combo_keys |= 1 << u;
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693 kb_combo_acts |= 1 << act;
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699 // printf("combo keys/acts: %08x %08x\n", kb_combo_keys, kb_combo_acts);
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703 void emu_updateMovie(void)
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705 int offs = Pico.m.frame_count*3 + 0x40;
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706 if (offs+3 > movie_size) {
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709 strcpy(noticeMsg, "END OF MOVIE.");
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710 lprintf("END OF MOVIE.\n");
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711 emu_noticeMsgUpdated();
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714 PicoPad[0] = ~movie_data[offs] & 0x8f; // ! SCBA RLDU
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715 if(!(movie_data[offs] & 0x10)) PicoPad[0] |= 0x40; // A
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716 if(!(movie_data[offs] & 0x20)) PicoPad[0] |= 0x10; // B
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717 if(!(movie_data[offs] & 0x40)) PicoPad[0] |= 0x20; // A
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718 PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU
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719 if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A
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720 if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B
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721 if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A
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722 PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX
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723 if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X
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724 if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z
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725 PicoPad[1] |= (~movie_data[offs+2] & 0xA0) << 4; // ! MZYX
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726 if(!(movie_data[offs+2] & 0x10)) PicoPad[1] |= 0x0400; // X
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727 if(!(movie_data[offs+2] & 0x40)) PicoPad[1] |= 0x0100; // Z
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732 static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)
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734 return gzread(file, p, _n);
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738 static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)
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740 return gzwrite(file, p, _n);
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743 static int try_ropen_file(const char *fname)
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747 f = fopen(fname, "rb");
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755 char *emu_GetSaveFName(int load, int is_sram, int slot)
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757 static char saveFname[512];
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762 romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");
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764 if (try_ropen_file(saveFname)) return saveFname;
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765 // try in current dir..
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766 romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");
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767 if (try_ropen_file(saveFname)) return saveFname;
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768 return NULL; // give up
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774 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);
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775 strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");
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777 romfname_ext(saveFname, "mds/", ext);
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779 if (try_ropen_file(saveFname)) return saveFname;
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780 romfname_ext(saveFname, NULL, ext);
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781 if (try_ropen_file(saveFname)) return saveFname;
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782 if (currentConfig.EmuOpt & 8) {
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784 if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);
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785 strcat(ext, ".mds");
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787 romfname_ext(saveFname, "mds/", ext);
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788 if (try_ropen_file(saveFname)) return saveFname;
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789 romfname_ext(saveFname, NULL, ext);
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790 if (try_ropen_file(saveFname)) return saveFname;
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799 int emu_checkSaveFile(int slot)
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801 return emu_GetSaveFName(1, 0, slot) ? 1 : 0;
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804 void emu_setSaveStateCbs(int gz)
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807 areaRead = gzRead2;
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808 areaWrite = gzWrite2;
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809 areaEof = (areaeof *) gzeof;
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810 areaSeek = (areaseek *) gzseek;
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811 areaClose = (areaclose *) gzclose;
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813 areaRead = (arearw *) fread;
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814 areaWrite = (arearw *) fwrite;
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815 areaEof = (areaeof *) feof;
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816 areaSeek = (areaseek *) fseek;
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817 areaClose = (areaclose *) fclose;
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821 int emu_SaveLoadGame(int load, int sram)
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826 // make save filename
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827 saveFname = emu_GetSaveFName(load, sram, state_slot);
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828 if (saveFname == NULL) {
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830 strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED ");
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831 emu_noticeMsgUpdated();
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836 lprintf("saveLoad (%i, %i): %s\n", load, sram, saveFname);
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842 unsigned char *sram_data;
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845 if (PicoOpt&0x8000) { // MCD RAM cart?
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846 sram_size = 0x12000;
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847 sram_data = SRam.data;
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849 memcpy32((int *)sram_data, (int *)Pico_mcd->bram, 0x2000/4);
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851 sram_size = 0x2000;
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852 sram_data = Pico_mcd->bram;
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853 truncate = 0; // the .brm may contain RAM cart data after normal brm
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856 sram_size = SRam.end-SRam.start+1;
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857 if(Pico.m.sram_reg & 4) sram_size=0x2000;
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858 sram_data = SRam.data;
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860 if (!sram_data) return 0; // SRam forcefully disabled for this game
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863 sramFile = fopen(saveFname, "rb");
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864 if(!sramFile) return -1;
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865 fread(sram_data, 1, sram_size, sramFile);
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867 if ((PicoMCD&1) && (PicoOpt&0x8000))
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868 memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);
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870 // sram save needs some special processing
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871 // see if we have anything to save
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872 for (; sram_size > 0; sram_size--)
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873 if (sram_data[sram_size-1]) break;
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876 sramFile = fopen(saveFname, truncate ? "wb" : "r+b");
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877 if (!sramFile) sramFile = fopen(saveFname, "wb"); // retry
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878 if (!sramFile) return -1;
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879 ret = fwrite(sram_data, 1, sram_size, sramFile);
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880 ret = (ret != sram_size) ? -1 : 0;
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891 void *PmovFile = NULL;
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892 if (strcmp(saveFname + strlen(saveFname) - 3, ".gz") == 0)
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894 if( (PmovFile = gzopen(saveFname, load ? "rb" : "wb")) ) {
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895 emu_setSaveStateCbs(1);
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896 if (!load) gzsetparams(PmovFile, 9, Z_DEFAULT_STRATEGY);
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901 if( (PmovFile = fopen(saveFname, load ? "rb" : "wb")) ) {
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902 emu_setSaveStateCbs(0);
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906 ret = PmovState(load ? 6 : 5, PmovFile);
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907 areaClose(PmovFile);
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909 if (load) Pico.m.dirtyPal=1;
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916 strcpy(noticeMsg, load ? "GAME LOADED " : "GAME SAVED ");
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919 strcpy(noticeMsg, load ? "LOAD FAILED " : "SAVE FAILED ");
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923 emu_noticeMsgUpdated();
\r