X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=common%2Femu.c;h=141356a30153247bb6049252d710e5781a694ecb;hb=ee0f881e9f135db6ed9337b99f611b3cae955f8c;hp=a9b98aec7a23732ef55e3b7b453abcf7c689a900;hpb=558d8e1fdd54558c58fe5f661369f76458e1addc;p=libpicofe.git

diff --git a/common/emu.c b/common/emu.c
index a9b98ae..141356a 100644
--- a/common/emu.c
+++ b/common/emu.c
@@ -5,7 +5,6 @@
 
 #include <stdio.h>
 #include <stdlib.h>
-#include <ctype.h> // tolower
 #ifndef NO_SYNC
 #include <unistd.h>
 #endif
@@ -15,63 +14,61 @@
 #include "fonts.h"
 #include "lprintf.h"
 #include "config.h"
+#include "plat.h"
+#include "input.h"
+#include "posix.h"
 
-#include <Pico/PicoInt.h>
-#include <Pico/Patch.h>
+#include <pico/pico_int.h>
+#include <pico/patch.h>
+#include <pico/cd/cue.h>
 #include <zlib/zlib.h>
 
-#if   defined(__GP2X__)
- #include "../gp2x/gp2x.h"
- #define SCREEN_WIDTH 320
- #define SCREEN_BUFFER gp2x_screen
-#elif defined(__GIZ__)
- #include "../gizmondo/giz.h"
- #define SCREEN_WIDTH 321
- #define SCREEN_BUFFER giz_screen
-#elif defined(PSP)
- #include "../psp/psp.h"
- #define SCREEN_WIDTH 512
- #define SCREEN_BUFFER psp_screen
+
+void *g_screen_ptr;
+
+#if !SCREEN_SIZE_FIXED
+int g_screen_width  = SCREEN_WIDTH;
+int g_screen_height = SCREEN_HEIGHT;
 #endif
 
 char *PicoConfigFile = "config.cfg";
 currentConfig_t currentConfig, defaultConfig;
-int rom_loaded = 0;
-char noticeMsg[64];
 int state_slot = 0;
 int config_slot = 0, config_slot_current = 0;
-char lastRomFile[512];
-int kb_combo_keys = 0, kb_combo_acts = 0;	// keys and actions which need button combos
+int pico_pen_x = 320/2, pico_pen_y = 240/2;
+int pico_inp_mode = 0;
+int engineState = PGS_Menu;
+
+/* TODO: len checking */
+char rom_fname_reload[512] = { 0, };
+char rom_fname_loaded[512] = { 0, };
+int rom_loaded = 0;
+int reset_timing = 0;
 
 unsigned char *movie_data = NULL;
 static int movie_size = 0;
 
-// provided by platform code:
-extern char romFileName[];
-extern void emu_noticeMsgUpdated(void);
-extern void emu_getMainDir(char *dst, int len);
-extern void emu_setDefaultConfig(void);
-extern void menu_romload_prepare(const char *rom_name);
-extern void menu_romload_end(void);
-
 
-// utilities
-static void strlwr_(char* string)
+/* don't use tolower() for easy old glibc binary compatibility */
+static void strlwr_(char *string)
 {
-	while ( (*string++ = (char)tolower(*string)) );
+	char *p;
+	for (p = string; *p; p++)
+		if ('A' <= *p && *p <= 'Z')
+			*p += 'a' - 'A';
 }
 
-static int try_rfn_cut(void)
+static int try_rfn_cut(char *fname)
 {
 	FILE *tmp;
 	char *p;
 
-	p = romFileName + strlen(romFileName) - 1;
-	for (; p > romFileName; p--)
+	p = fname + strlen(fname) - 1;
+	for (; p > fname; p--)
 		if (*p == '.') break;
 	*p = 0;
 
-	if((tmp = fopen(romFileName, "rb"))) {
+	if((tmp = fopen(fname, "rb"))) {
 		fclose(tmp);
 		return 1;
 	}
@@ -89,15 +86,15 @@ static void get_ext(char *file, char *ext)
 	strlwr_(ext);
 }
 
-char *biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };
-char *biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303"   };
-char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
+static const char *biosfiles_us[] = { "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303" };
+static const char *biosfiles_eu[] = { "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303"   };
+static const char *biosfiles_jp[] = { "jp_mcd1_9112", "jp_mcd1_9111" };
 
-int emu_findBios(int region, char **bios_file)
+static int find_bios(int region, char **bios_file)
 {
 	static char bios_path[1024];
 	int i, count;
-	char **files;
+	const char **files;
 	FILE *f = NULL;
 
 	if (region == 4) { // US
@@ -115,7 +112,7 @@ int emu_findBios(int region, char **bios_file)
 
 	for (i = 0; i < count; i++)
 	{
-		emu_getMainDir(bios_path, sizeof(bios_path));
+		plat_get_root_dir(bios_path, sizeof(bios_path));
 		strcat(bios_path, files[i]);
 		strcat(bios_path, ".bin");
 		f = fopen(bios_path, "rb");
@@ -133,9 +130,9 @@ int emu_findBios(int region, char **bios_file)
 		if (bios_file) *bios_file = bios_path;
 		return 1;
 	} else {
-		sprintf(menuErrorMsg, "no %s BIOS files found, read docs",
+		sprintf(bios_path, "no %s BIOS files found, read docs",
 			region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
-		lprintf("%s\n", menuErrorMsg);
+		me_update_msg(bios_path);
 		return 0;
 	}
 }
@@ -157,34 +154,60 @@ static int emu_isBios(const char *name)
 
 static unsigned char id_header[0x100];
 
-/* checks if romFileName points to valid MegaCD image
+/* checks if fname points to valid MegaCD image
  * if so, checks for suitable BIOS */
-int emu_cdCheck(int *pregion)
+int emu_cd_check(int *pregion, char *fname_in)
 {
 	unsigned char buf[32];
 	pm_file *cd_f;
-	int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe
+	int region = 4; // 1: Japan, 4: US, 8: Europe
+	char ext[5], *fname = fname_in;
+	cue_track_type type = CT_UNKNOWN;
+	cue_data_t *cue_data = NULL;
+
+	get_ext(fname_in, ext);
+	if (strcasecmp(ext, ".cue") == 0) {
+		cue_data = cue_parse(fname_in);
+		if (cue_data != NULL) {
+			fname = cue_data->tracks[1].fname;
+			type  = cue_data->tracks[1].type;
+		}
+		else
+			return -1;
+	}
+
+	cd_f = pm_open(fname);
+	if (cue_data != NULL)
+		cue_destroy(cue_data);
 
-	cd_f = pm_open(romFileName);
-	if (!cd_f) return 0; // let the upper level handle this
+	if (cd_f == NULL) return 0; // let the upper level handle this
 
 	if (pm_read(buf, 32, cd_f) != 32) {
 		pm_close(cd_f);
-		return 0;
+		return -1;
+	}
+
+	if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) {
+		if (type && type != CT_ISO)
+			elprintf(EL_STATUS, ".cue has wrong type: %i", type);
+		type = CT_ISO;       // Sega CD (ISO)
+	}
+	if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) {
+		if (type && type != CT_BIN)
+			elprintf(EL_STATUS, ".cue has wrong type: %i", type);
+		type = CT_BIN;       // Sega CD (BIN)
 	}
 
-	if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1;       // Sega CD (ISO)
-	if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2;       // Sega CD (BIN)
-	if (type == 0) {
+	if (type == CT_UNKNOWN) {
 		pm_close(cd_f);
 		return 0;
 	}
 
-	pm_seek(cd_f, (type == 1) ? 0x100 : 0x110, SEEK_SET);
+	pm_seek(cd_f, (type == CT_ISO) ? 0x100 : 0x110, SEEK_SET);
 	pm_read(id_header, sizeof(id_header), cd_f);
 
 	/* it seems we have a CD image here. Try to detect region now.. */
-	pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
+	pm_seek(cd_f, (type == CT_ISO) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
 	pm_read(buf, 1, cd_f);
 	pm_close(cd_f);
 
@@ -192,14 +215,14 @@ int emu_cdCheck(int *pregion)
 	if (buf[0] == 0xa1) region = 1; // JAP
 
 	lprintf("detected %s Sega/Mega CD image with %s region\n",
-		type == 2 ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
+		type == CT_BIN ? "BIN" : "ISO", region != 4 ? (region == 8 ? "EU" : "JAP") : "USA");
 
 	if (pregion != NULL) *pregion = region;
 
 	return type;
 }
 
-static int extract_text(char *dest, unsigned char *src, int len, int swab)
+static int extract_text(char *dest, const unsigned char *src, int len, int swab)
 {
 	char *p = dest;
 	int i;
@@ -230,12 +253,12 @@ static int extract_text(char *dest, unsigned char *src, int len, int swab)
 	return p - dest;
 }
 
-char *emu_makeRomId(void)
+static char *emu_make_rom_id(void)
 {
-	static char id_string[3+0x11+0x11+0x30+16];
+	static char id_string[3+0xe*3+0x3*3+0x30*3+3];
 	int pos, swab = 1;
 
-	if (PicoMCD & 1) {
+	if (PicoAHW & PAHW_MCD) {
 		strcpy(id_string, "CD|");
 		swab = 0;
 	}
@@ -252,22 +275,47 @@ char *emu_makeRomId(void)
 	return id_string;
 }
 
-int emu_ReloadRom(void)
+// buffer must be at least 150 byte long
+void emu_get_game_name(char *str150)
+{
+	int ret, swab = (PicoAHW & PAHW_MCD) ? 0 : 1;
+	char *s, *d;
+
+	ret = extract_text(str150, id_header + 0x50, 0x30, swab); // overseas name
+
+	for (s = d = str150 + 1; s < str150+ret; s++)
+	{
+		if (*s == 0) break;
+		if (*s != ' ' || d[-1] != ' ')
+			*d++ = *s;
+	}
+	*d = 0;
+}
+
+static void shutdown_MCD(void)
+{
+	if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)
+		Stop_CD();
+	PicoAHW &= ~PAHW_MCD;
+}
+
+// note: this function might mangle rom_fname
+int emu_reload_rom(char *rom_fname)
 {
 	unsigned int rom_size = 0;
-	char *used_rom_name = romFileName;
+	char *used_rom_name = rom_fname;
 	unsigned char *rom_data = NULL;
 	char ext[5];
-	pm_file *rom;
+	pm_file *rom = NULL;
 	int ret, cd_state, cd_region, cfg_loaded = 0;
 
-	lprintf("emu_ReloadRom(%s)\n", romFileName);
+	lprintf("emu_ReloadRom(%s)\n", rom_fname);
 
-	get_ext(romFileName, ext);
+	get_ext(rom_fname, ext);
 
 	// detect wrong extensions
 	if (!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz
-		sprintf(menuErrorMsg, "Not a ROM selected.");
+		me_update_msg("Not a ROM/CD selected.");
 		return 0;
 	}
 
@@ -282,71 +330,71 @@ int emu_ReloadRom(void)
 	{
 		// check for both gmv and rom
 		int dummy;
-		FILE *movie_file = fopen(romFileName, "rb");
+		FILE *movie_file = fopen(rom_fname, "rb");
 		if(!movie_file) {
-			sprintf(menuErrorMsg, "Failed to open movie.");
+			me_update_msg("Failed to open movie.");
 			return 0;
 		}
 		fseek(movie_file, 0, SEEK_END);
 		movie_size = ftell(movie_file);
 		fseek(movie_file, 0, SEEK_SET);
 		if(movie_size < 64+3) {
-			sprintf(menuErrorMsg, "Invalid GMV file.");
+			me_update_msg("Invalid GMV file.");
 			fclose(movie_file);
 			return 0;
 		}
 		movie_data = malloc(movie_size);
 		if(movie_data == NULL) {
-			sprintf(menuErrorMsg, "low memory.");
+			me_update_msg("low memory.");
 			fclose(movie_file);
 			return 0;
 		}
 		fread(movie_data, 1, movie_size, movie_file);
 		fclose(movie_file);
 		if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
-			sprintf(menuErrorMsg, "Invalid GMV file.");
+			me_update_msg("Invalid GMV file.");
 			return 0;
 		}
-		dummy = try_rfn_cut() || try_rfn_cut();
+		dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
 		if (!dummy) {
-			sprintf(menuErrorMsg, "Could't find a ROM for movie.");
+			me_update_msg("Could't find a ROM for movie.");
 			return 0;
 		}
-		get_ext(romFileName, ext);
+		get_ext(rom_fname, ext);
+		lprintf("gmv loaded for %s\n", rom_fname);
 	}
-	else if (!strcmp(ext, ".pat")) {
+	else if (!strcmp(ext, ".pat"))
+	{
 		int dummy;
-		PicoPatchLoad(romFileName);
-		dummy = try_rfn_cut() || try_rfn_cut();
+		PicoPatchLoad(rom_fname);
+		dummy = try_rfn_cut(rom_fname) || try_rfn_cut(rom_fname);
 		if (!dummy) {
-			sprintf(menuErrorMsg, "Could't find a ROM to patch.");
+			me_update_msg("Could't find a ROM to patch.");
 			return 0;
 		}
-		get_ext(romFileName, ext);
+		get_ext(rom_fname, ext);
 	}
 
-	if ((PicoMCD & 1) && Pico_mcd != NULL)
-		Stop_CD();
+	shutdown_MCD();
 
 	// check for MegaCD image
-	cd_state = emu_cdCheck(&cd_region);
-	if (cd_state > 0)
+	cd_state = emu_cd_check(&cd_region, rom_fname);
+	if (cd_state >= 0 && cd_state != CIT_NOT_CD)
 	{
-		PicoMCD |= 1;
+		PicoAHW |= PAHW_MCD;
 		// valid CD image, check for BIOS..
 
 		// we need to have config loaded at this point
-		ret = emu_ReadConfig(1, 1);
-		if (!ret) emu_ReadConfig(0, 1);
+		ret = emu_read_config(1, 1);
+		if (!ret) emu_read_config(0, 1);
 		cfg_loaded = 1;
 
 		if (PicoRegionOverride) {
 			cd_region = PicoRegionOverride;
 			lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");
 		}
-		if (!emu_findBios(cd_region, &used_rom_name)) {
-			// bios_help() ?
-			PicoMCD &= ~1;
+		if (!find_bios(cd_region, &used_rom_name)) {
+			PicoAHW &= ~PAHW_MCD;
 			return 0;
 		}
 
@@ -354,14 +402,19 @@ int emu_ReloadRom(void)
 	}
 	else
 	{
-		if (PicoMCD & 1) Stop_CD();
-		PicoMCD &= ~1;
+		if (PicoAHW & PAHW_MCD) Stop_CD();
+		PicoAHW &= ~PAHW_MCD;
 	}
 
 	rom = pm_open(used_rom_name);
 	if (!rom) {
-		sprintf(menuErrorMsg, "Failed to open rom.");
-		return 0;
+		me_update_msg("Failed to open ROM/CD image");
+		goto fail;
+	}
+
+	if (cd_state < 0) {
+		me_update_msg("Invalid CD image");
+		goto fail;
 	}
 
 	menu_romload_prepare(used_rom_name); // also CD load
@@ -370,48 +423,42 @@ int emu_ReloadRom(void)
 	rom_loaded = 0;
 
 	if ( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {
-		sprintf(menuErrorMsg, "PicoCartLoad() failed.");
-		lprintf("%s\n", menuErrorMsg);
-		pm_close(rom);
-		menu_romload_end();
-		return 0;
+		if      (ret == 2) me_update_msg("Out of memory");
+		else if (ret == 3) me_update_msg("Read failed");
+		else               me_update_msg("PicoCartLoad() failed.");
+		goto fail2;
 	}
 	pm_close(rom);
+	rom = NULL;
 
 	// detect wrong files (Pico crashes on very small files), also see if ROM EP is good
 	if (rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||
 	  ((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {
 		if (rom_data) free(rom_data);
-		sprintf(menuErrorMsg, "Not a ROM selected.");
-		menu_romload_end();
-		return 0;
+		me_update_msg("Not a ROM selected.");
+		goto fail2;
 	}
 
 	// load config for this ROM (do this before insert to get correct region)
-	if (!(PicoMCD&1))
+	if (!(PicoAHW & PAHW_MCD))
 		memcpy(id_header, rom_data + 0x100, sizeof(id_header));
 	if (!cfg_loaded) {
-		ret = emu_ReadConfig(1, 1);
-		if (!ret) emu_ReadConfig(0, 1);
+		ret = emu_read_config(1, 1);
+		if (!ret) emu_read_config(0, 1);
 	}
 
 	lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);
 	if (PicoCartInsert(rom_data, rom_size)) {
-		sprintf(menuErrorMsg, "Failed to load ROM.");
-		menu_romload_end();
-		return 0;
+		me_update_msg("Failed to load ROM.");
+		goto fail2;
 	}
 
-	Pico.m.frame_count = 0;
-
 	// insert CD if it was detected
-	if (cd_state > 0) {
-		ret = Insert_CD(romFileName, cd_state == 2);
+	if (cd_state != CIT_NOT_CD) {
+		ret = Insert_CD(rom_fname, cd_state);
 		if (ret != 0) {
-			sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");
-			lprintf("%s\n", menuErrorMsg);
-			menu_romload_end();
-			return 0;
+			me_update_msg("Insert_CD() failed, invalid CD image?");
+			goto fail2;
 		}
 	}
 
@@ -423,44 +470,45 @@ int emu_ReloadRom(void)
 	}
 
 	// additional movie stuff
-	if (movie_data) {
-		if(movie_data[0x14] == '6')
-		     PicoOpt |=  0x20; // 6 button pad
-		else PicoOpt &= ~0x20;
-		PicoOpt |= 0x10040; // accurate timing, no VDP fifo timing
-		if(movie_data[0xF] >= 'A') {
-			if(movie_data[0x16] & 0x80) {
+	if (movie_data)
+	{
+		if (movie_data[0x14] == '6')
+		     PicoOpt |=  POPT_6BTN_PAD; // 6 button pad
+		else PicoOpt &= ~POPT_6BTN_PAD;
+		PicoOpt |= POPT_DIS_VDP_FIFO; // no VDP fifo timing
+		if (movie_data[0xF] >= 'A') {
+			if (movie_data[0x16] & 0x80) {
 				PicoRegionOverride = 8;
 			} else {
 				PicoRegionOverride = 4;
 			}
-			PicoReset(0);
+			PicoReset();
 			// TODO: bits 6 & 5
 		}
 		movie_data[0x18+30] = 0;
-		sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);
+		plat_status_msg("MOVIE: %s", (char *) &movie_data[0x18]);
 	}
 	else
 	{
-		PicoOpt &= ~0x10000;
-		if(Pico.m.pal) {
-			strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");
-		} else {
-			strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");
-		}
+		PicoOpt &= ~POPT_DIS_VDP_FIFO;
+		plat_status_msg(Pico.m.pal ? "PAL SYSTEM / 50 FPS" : "NTSC SYSTEM / 60 FPS");
 	}
-	emu_noticeMsgUpdated();
 
 	// load SRAM for this ROM
-	if (currentConfig.EmuOpt & 1)
-		emu_SaveLoadGame(1, 1);
+	if (currentConfig.EmuOpt & EOPT_EN_SRAM)
+		emu_save_load_game(1, 1);
 
-	strncpy(lastRomFile, romFileName, sizeof(lastRomFile)-1);
-	lastRomFile[sizeof(lastRomFile)-1] = 0;
+	strncpy(rom_fname_loaded, rom_fname, sizeof(rom_fname_loaded)-1);
+	rom_fname_loaded[sizeof(rom_fname_loaded)-1] = 0;
 	rom_loaded = 1;
 	return 1;
-}
 
+fail2:
+	menu_romload_end();
+fail:
+	if (rom != NULL) pm_close(rom);
+	return 0;
+}
 
 static void romfname_ext(char *dst, const char *prefix, const char *ext)
 {
@@ -468,42 +516,62 @@ static void romfname_ext(char *dst, const char *prefix, const char *ext)
 	int prefix_len = 0;
 
 	// make save filename
-	for (p = romFileName+strlen(romFileName)-1; p >= romFileName && *p != '/'; p--); p++;
+	p = rom_fname_loaded + strlen(rom_fname_loaded) - 1;
+	for (; p >= rom_fname_loaded && *p != PATH_SEP_C; p--); p++;
 	*dst = 0;
 	if (prefix) {
-		strcpy(dst, prefix);
-		prefix_len = strlen(prefix);
+		int len = plat_get_root_dir(dst, 512);
+		strcpy(dst + len, prefix);
+		prefix_len = len + strlen(prefix);
 	}
+#ifdef UIQ3
+	else p = rom_fname_loaded; // backward compatibility
+#endif
 	strncpy(dst + prefix_len, p, 511-prefix_len);
 	dst[511-8] = 0;
 	if (dst[strlen(dst)-4] == '.') dst[strlen(dst)-4] = 0;
 	if (ext) strcat(dst, ext);
 }
 
+static void make_config_cfg(char *cfg)
+{
+	int len;
+	len = plat_get_root_dir(cfg, 512);
+	strncpy(cfg + len, PicoConfigFile, 512-6-1-len);
+	if (config_slot != 0)
+	{
+		char *p = strrchr(cfg, '.');
+		if (p == NULL) p = cfg + strlen(cfg);
+		sprintf(p, ".%i.cfg", config_slot);
+	}
+	cfg[511] = 0;
+}
 
-int emu_ReadConfig(int game, int no_defaults)
+static void emu_setDefaultConfig(void)
+{
+	memcpy(&currentConfig, &defaultConfig, sizeof(currentConfig));
+	PicoOpt = currentConfig.s_PicoOpt;
+	PsndRate = currentConfig.s_PsndRate;
+	PicoRegionOverride = currentConfig.s_PicoRegion;
+	PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
+	PicoCDBuffers = currentConfig.s_PicoCDBuffers;
+}
+
+int emu_read_config(int game, int no_defaults)
 {
 	char cfg[512];
-	FILE *f;
 	int ret;
 
 	if (!game)
 	{
 		if (!no_defaults)
 			emu_setDefaultConfig();
-		strncpy(cfg, PicoConfigFile, 511);
-		if (config_slot != 0)
-		{
-			char *p = strrchr(cfg, '.');
-			if (p == NULL) p = cfg + strlen(cfg);
-			sprintf(p, ".%i.cfg", config_slot);
-		}
-		cfg[511] = 0;
+		make_config_cfg(cfg);
 		ret = config_readsect(cfg, NULL);
 	}
 	else
 	{
-		char *sect = emu_makeRomId();
+		char *sect = emu_make_rom_id();
 
 		// try new .cfg way
 		if (config_slot != 0)
@@ -511,96 +579,65 @@ int emu_ReadConfig(int game, int no_defaults)
 		else strcpy(cfg,  "game.cfg");
 
 		ret = -1;
-		if (config_havesect(cfg, sect)) {
+		if (config_havesect(cfg, sect))
+		{
+			// read user's config
 			int vol = currentConfig.volume;
 			emu_setDefaultConfig();
 			ret = config_readsect(cfg, sect);
 			currentConfig.volume = vol; // make vol global (bah)
 		}
 		else
-			config_readsect("game_def.cfg", sect);
-
-		if (ret != 0)
 		{
-			// fall back to old
-			char extbuf[16];
-			if (config_slot != 0)
-				sprintf(extbuf, ".%i.pbcfg", config_slot);
-			else strcpy(extbuf, ".pbcfg");
-			romfname_ext(cfg, "cfg/", extbuf);
-			f = fopen(cfg, "rb");
-			if (!f) {
-				romfname_ext(cfg, NULL, ".pbcfg");
-				f = fopen(cfg, "rb");
-			}
-			if (f) {
-				int bread;
-				fseek(f, 512, SEEK_SET); // skip unused lrom buffer
-				bread = fread(&currentConfig, 1, sizeof(currentConfig), f);
-				lprintf("emu_ReadConfig: %s %s\n", cfg, bread > 0 ? "(ok)" : "(failed)");
-				fclose(f);
-				ret = 0;
-			}
-
-			if (ret == 0) {
-				PicoOpt = currentConfig.s_PicoOpt;
-				PsndRate = currentConfig.s_PsndRate;
-				PicoRegionOverride = currentConfig.s_PicoRegion;
-				PicoAutoRgnOrder = currentConfig.s_PicoAutoRgnOrder;
-				// PicoCDBuffers = currentConfig.s_PicoCDBuffers; // ignore in this case
-			}
+			// read global config, and apply game_def.cfg on top
+			make_config_cfg(cfg);
+			config_readsect(cfg, NULL);
+			ret = config_readsect("game_def.cfg", sect);
 		}
-		else
+
+		if (ret == 0)
 		{
 			lprintf("loaded cfg from sect \"%s\"\n", sect);
 		}
 	}
 
+	plat_validate_config();
+
 	// some sanity checks
-	if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;
 #ifdef PSP
+	/* TODO: mv to plat_validate_config() */
+	if (currentConfig.CPUclock < 10 || currentConfig.CPUclock > 4096) currentConfig.CPUclock = 200;
 	if (currentConfig.gamma < -4 || currentConfig.gamma >  16) currentConfig.gamma = 0;
-#else
-	if (currentConfig.gamma < 10 || currentConfig.gamma > 300) currentConfig.gamma = 100;
-#endif
-	if (currentConfig.volume < 0 || currentConfig.volume > 99) currentConfig.volume = 50;
-#ifdef __GP2X__
-	// if volume keys are unbound, bind them to volume control
-	if (!currentConfig.KeyBinds[23] && !currentConfig.KeyBinds[22]) {
-		currentConfig.KeyBinds[23] = 1<<29; // vol up
-		currentConfig.KeyBinds[22] = 1<<30; // vol down
-	}
+	if (currentConfig.gamma2 < 0 || currentConfig.gamma2 > 2)  currentConfig.gamma2 = 0;
 #endif
-	if (ret == 0) config_slot_current = config_slot;
+	if (currentConfig.volume < 0 || currentConfig.volume > 99)
+		currentConfig.volume = 50;
+
+	if (ret == 0)
+		config_slot_current = config_slot;
+
 	return (ret == 0);
 }
 
 
-int emu_WriteConfig(int is_game)
+int emu_write_config(int is_game)
 {
 	char cfg[512], *game_sect = NULL;
 	int ret, write_lrom = 0;
 
 	if (!is_game)
 	{
-		strncpy(cfg, PicoConfigFile, 511);
-		if (config_slot != 0)
-		{
-			char *p = strrchr(cfg, '.');
-			if (p == NULL) p = cfg + strlen(cfg);
-			sprintf(p, ".%i.cfg", config_slot);
-		}
-		cfg[511] = 0;
+		make_config_cfg(cfg);
 		write_lrom = 1;
 	} else {
 		if (config_slot != 0)
 		     sprintf(cfg, "game.%i.cfg", config_slot);
 		else strcpy(cfg,  "game.cfg");
-		game_sect = emu_makeRomId();
-		lprintf("emu_WriteConfig: sect \"%s\"\n", game_sect);
+		game_sect = emu_make_rom_id();
+		lprintf("emu_write_config: sect \"%s\"\n", game_sect);
 	}
 
-	lprintf("emu_WriteConfig: %s ", cfg);
+	lprintf("emu_write_config: %s ", cfg);
 	ret = config_writesect(cfg, game_sect);
 	if (write_lrom) config_writelrom(cfg);
 #ifndef NO_SYNC
@@ -613,114 +650,66 @@ int emu_WriteConfig(int is_game)
 }
 
 
-void emu_textOut8(int x, int y, const char *text)
+void emu_writelrom(void)
 {
-	int i,l,len=strlen(text);
-	unsigned char *screen = (unsigned char *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;
-
-	/* always using built-in font */
-	for (i = 0; i < len; i++)
-	{
-		for (l=0;l<8;l++)
-		{
-			unsigned char fd = fontdata8x8[((text[i])*8)+l];
-			if (fd&0x80) screen[l*SCREEN_WIDTH+0]=0xf0;
-			if (fd&0x40) screen[l*SCREEN_WIDTH+1]=0xf0;
-			if (fd&0x20) screen[l*SCREEN_WIDTH+2]=0xf0;
-			if (fd&0x10) screen[l*SCREEN_WIDTH+3]=0xf0;
-			if (fd&0x08) screen[l*SCREEN_WIDTH+4]=0xf0;
-			if (fd&0x04) screen[l*SCREEN_WIDTH+5]=0xf0;
-			if (fd&0x02) screen[l*SCREEN_WIDTH+6]=0xf0;
-			if (fd&0x01) screen[l*SCREEN_WIDTH+7]=0xf0;
-		}
-		screen += 8;
-	}
+	char cfg[512];
+	make_config_cfg(cfg);
+	config_writelrom(cfg);
+#ifndef NO_SYNC
+	sync();
+#endif
 }
 
-void emu_textOut16(int x, int y, const char *text)
-{
-	int i,l,len=strlen(text);
-	unsigned short *screen = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;
-
-	for (i = 0; i < len; i++)
-	{
-		for (l=0;l<8;l++)
-		{
-			unsigned char fd = fontdata8x8[((text[i])*8)+l];
-			if(fd&0x80) screen[l*SCREEN_WIDTH+0]=0xffff;
-			if(fd&0x40) screen[l*SCREEN_WIDTH+1]=0xffff;
-			if(fd&0x20) screen[l*SCREEN_WIDTH+2]=0xffff;
-			if(fd&0x10) screen[l*SCREEN_WIDTH+3]=0xffff;
-			if(fd&0x08) screen[l*SCREEN_WIDTH+4]=0xffff;
-			if(fd&0x04) screen[l*SCREEN_WIDTH+5]=0xffff;
-			if(fd&0x02) screen[l*SCREEN_WIDTH+6]=0xffff;
-			if(fd&0x01) screen[l*SCREEN_WIDTH+7]=0xffff;
-		}
-		screen += 8;
-	}
+/* always using built-in font */
+
+#define mk_text_out(name, type, val) \
+void name(int x, int y, const char *text)				\
+{									\
+	int i, l, len = strlen(text);					\
+	type *screen = (type *)g_screen_ptr + x + y * g_screen_width;	\
+									\
+	for (i = 0; i < len; i++, screen += 8)				\
+	{								\
+		for (l = 0; l < 8; l++)					\
+		{							\
+			unsigned char fd = fontdata8x8[text[i] * 8 + l];\
+			type *s = screen + l * g_screen_width;		\
+			if (fd&0x80) s[0] = val;			\
+			if (fd&0x40) s[1] = val;			\
+			if (fd&0x20) s[2] = val;			\
+			if (fd&0x10) s[3] = val;			\
+			if (fd&0x08) s[4] = val;			\
+			if (fd&0x04) s[5] = val;			\
+			if (fd&0x02) s[6] = val;			\
+			if (fd&0x01) s[7] = val;			\
+		}							\
+	}								\
 }
 
-void emu_findKeyBindCombos(void)
-{
-	int act, u;
-
-	// find out which keys and actions are combos
-	kb_combo_keys = kb_combo_acts = 0;
-	for (act = 0; act < 32; act++)
-	{
-		int keyc = 0, keyc2 = 0;
-		if (act == 16 || act == 17) continue; // player2 flag
-		if (act > 17)
-		{
-			for (u = 0; u < 32; u++)
-				if (currentConfig.KeyBinds[u] & (1 << act)) keyc++;
-		}
-		else
-		{
-			for (u = 0; u < 32; u++)
-				if ((currentConfig.KeyBinds[u] & 0x30000) == 0 && // pl. 1
-					(currentConfig.KeyBinds[u] & (1 << act))) keyc++;
-			for (u = 0; u < 32; u++)
-				if ((currentConfig.KeyBinds[u] & 0x30000) == 1 && // pl. 2
-					(currentConfig.KeyBinds[u] & (1 << act))) keyc2++;
-			if (keyc2 > keyc) keyc = keyc2;
-		}
-		if (keyc > 1)
-		{
-			// loop again and mark those keys and actions as combo
-			for (u = 0; u < 32; u++)
-			{
-				if (currentConfig.KeyBinds[u] & (1 << act)) {
-					kb_combo_keys |= 1 << u;
-					kb_combo_acts |= 1 << act;
-				}
-			}
-		}
-	}
+mk_text_out(emu_textOut8, unsigned char, 0xf0)
+mk_text_out(emu_textOut16, unsigned short, 0xffff)
 
-	// printf("combo keys/acts: %08x %08x\n", kb_combo_keys, kb_combo_acts);
-}
+#undef mk_text_out
 
 
-void emu_updateMovie(void)
+void update_movie(void)
 {
 	int offs = Pico.m.frame_count*3 + 0x40;
 	if (offs+3 > movie_size) {
 		free(movie_data);
 		movie_data = 0;
-		strcpy(noticeMsg, "END OF MOVIE.");
+		plat_status_msg("END OF MOVIE.");
 		lprintf("END OF MOVIE.\n");
-		emu_noticeMsgUpdated();
 	} else {
 		// MXYZ SACB RLDU
 		PicoPad[0] = ~movie_data[offs]   & 0x8f; // ! SCBA RLDU
-		if(!(movie_data[offs]   & 0x10)) PicoPad[0] |= 0x40; // A
-		if(!(movie_data[offs]   & 0x20)) PicoPad[0] |= 0x10; // B
-		if(!(movie_data[offs]   & 0x40)) PicoPad[0] |= 0x20; // A
+		if(!(movie_data[offs]   & 0x10)) PicoPad[0] |= 0x40; // C
+		if(!(movie_data[offs]   & 0x20)) PicoPad[0] |= 0x10; // A
+		if(!(movie_data[offs]   & 0x40)) PicoPad[0] |= 0x20; // B
 		PicoPad[1] = ~movie_data[offs+1] & 0x8f; // ! SCBA RLDU
-		if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // A
-		if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // B
-		if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // A
+		if(!(movie_data[offs+1] & 0x10)) PicoPad[1] |= 0x40; // C
+		if(!(movie_data[offs+1] & 0x20)) PicoPad[1] |= 0x10; // A
+		if(!(movie_data[offs+1] & 0x40)) PicoPad[1] |= 0x20; // B
 		PicoPad[0] |= (~movie_data[offs+2] & 0x0A) << 8; // ! MZYX
 		if(!(movie_data[offs+2] & 0x01)) PicoPad[0] |= 0x0400; // X
 		if(!(movie_data[offs+2] & 0x04)) PicoPad[0] |= 0x0100; // Z
@@ -754,18 +743,18 @@ static int try_ropen_file(const char *fname)
 	return 0;
 }
 
-char *emu_GetSaveFName(int load, int is_sram, int slot)
+char *emu_get_save_fname(int load, int is_sram, int slot)
 {
 	static char saveFname[512];
 	char ext[16];
 
 	if (is_sram)
 	{
-		romfname_ext(saveFname, (PicoMCD&1) ? "brm/" : "srm/", (PicoMCD&1) ? ".brm" : ".srm");
+		romfname_ext(saveFname, (PicoAHW&1) ? "brm"PATH_SEP : "srm"PATH_SEP, (PicoAHW&1) ? ".brm" : ".srm");
 		if (load) {
 			if (try_ropen_file(saveFname)) return saveFname;
 			// try in current dir..
-			romfname_ext(saveFname, NULL, (PicoMCD&1) ? ".brm" : ".srm");
+			romfname_ext(saveFname, NULL, (PicoAHW & PAHW_MCD) ? ".brm" : ".srm");
 			if (try_ropen_file(saveFname)) return saveFname;
 			return NULL; // give up
 		}
@@ -774,19 +763,21 @@ char *emu_GetSaveFName(int load, int is_sram, int slot)
 	{
 		ext[0] = 0;
 		if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);
-		strcat(ext, (currentConfig.EmuOpt & 8) ? ".mds.gz" : ".mds");
+		strcat(ext, (currentConfig.EmuOpt & EOPT_GZIP_SAVES) ? ".mds.gz" : ".mds");
 
-		romfname_ext(saveFname, "mds/", ext);
+		romfname_ext(saveFname, "mds" PATH_SEP, ext);
 		if (load) {
 			if (try_ropen_file(saveFname)) return saveFname;
 			romfname_ext(saveFname, NULL, ext);
 			if (try_ropen_file(saveFname)) return saveFname;
-			if (currentConfig.EmuOpt & 8) {
+			// no gzipped states, search for non-gzipped
+			if (currentConfig.EmuOpt & EOPT_GZIP_SAVES)
+			{
 				ext[0] = 0;
 				if(slot > 0 && slot < 10) sprintf(ext, ".%i", slot);
 				strcat(ext, ".mds");
 
-				romfname_ext(saveFname, "mds/", ext);
+				romfname_ext(saveFname, "mds"PATH_SEP, ext);
 				if (try_ropen_file(saveFname)) return saveFname;
 				romfname_ext(saveFname, NULL, ext);
 				if (try_ropen_file(saveFname)) return saveFname;
@@ -798,9 +789,9 @@ char *emu_GetSaveFName(int load, int is_sram, int slot)
 	return saveFname;
 }
 
-int emu_checkSaveFile(int slot)
+int emu_check_save_file(int slot)
 {
-	return emu_GetSaveFName(1, 0, slot) ? 1 : 0;
+	return emu_get_save_fname(1, 0, slot) ? 1 : 0;
 }
 
 void emu_setSaveStateCbs(int gz)
@@ -820,18 +811,16 @@ void emu_setSaveStateCbs(int gz)
 	}
 }
 
-int emu_SaveLoadGame(int load, int sram)
+int emu_save_load_game(int load, int sram)
 {
 	int ret = 0;
 	char *saveFname;
 
 	// make save filename
-	saveFname = emu_GetSaveFName(load, sram, state_slot);
+	saveFname = emu_get_save_fname(load, sram, state_slot);
 	if (saveFname == NULL) {
-		if (!sram) {
-			strcpy(noticeMsg, load ? "LOAD FAILED (missing file)" : "SAVE FAILED  ");
-			emu_noticeMsgUpdated();
-		}
+		if (!sram)
+			plat_status_msg(load ? "LOAD FAILED (missing file)" : "SAVE FAILED");
 		return -1;
 	}
 
@@ -843,8 +832,9 @@ int emu_SaveLoadGame(int load, int sram)
 		int sram_size;
 		unsigned char *sram_data;
 		int truncate = 1;
-		if (PicoMCD&1) {
-			if (PicoOpt&0x8000) { // MCD RAM cart?
+		if (PicoAHW & PAHW_MCD)
+		{
+			if (PicoOpt&POPT_EN_MCD_RAMCART) {
 				sram_size = 0x12000;
 				sram_data = SRam.data;
 				if (sram_data)
@@ -861,12 +851,13 @@ int emu_SaveLoadGame(int load, int sram)
 		}
 		if (!sram_data) return 0; // SRam forcefully disabled for this game
 
-		if (load) {
+		if (load)
+		{
 			sramFile = fopen(saveFname, "rb");
 			if(!sramFile) return -1;
 			fread(sram_data, 1, sram_size, sramFile);
 			fclose(sramFile);
-			if ((PicoMCD&1) && (PicoOpt&0x8000))
+			if ((PicoAHW & PAHW_MCD) && (PicoOpt&POPT_EN_MCD_RAMCART))
 				memcpy32((int *)Pico_mcd->bram, (int *)sram_data, 0x2000/4);
 		} else {
 			// sram save needs some special processing
@@ -915,15 +906,272 @@ int emu_SaveLoadGame(int load, int sram)
 		}
 		else	ret = -1;
 		if (!ret)
-			strcpy(noticeMsg, load ? "GAME LOADED  " : "GAME SAVED   ");
+			plat_status_msg(load ? "GAME LOADED" : "GAME SAVED");
 		else
 		{
-			strcpy(noticeMsg, load ? "LOAD FAILED  " : "SAVE FAILED  ");
+			plat_status_msg(load ? "LOAD FAILED" : "SAVE FAILED");
 			ret = -1;
 		}
 
-		emu_noticeMsgUpdated();
 		return ret;
 	}
 }
 
+void emu_set_fastforward(int set_on)
+{
+	static void *set_PsndOut = NULL;
+	static int set_Frameskip, set_EmuOpt, is_on = 0;
+
+	if (set_on && !is_on) {
+		set_PsndOut = PsndOut;
+		set_Frameskip = currentConfig.Frameskip;
+		set_EmuOpt = currentConfig.EmuOpt;
+		PsndOut = NULL;
+		currentConfig.Frameskip = 8;
+		currentConfig.EmuOpt &= ~4;
+		currentConfig.EmuOpt |= 0x40000;
+		is_on = 1;
+		plat_status_msg("FAST FORWARD");
+	}
+	else if (!set_on && is_on) {
+		PsndOut = set_PsndOut;
+		currentConfig.Frameskip = set_Frameskip;
+		currentConfig.EmuOpt = set_EmuOpt;
+		PsndRerate(1);
+		is_on = 0;
+	}
+}
+
+static void emu_msg_tray_open(void)
+{
+	plat_status_msg("CD tray opened");
+}
+
+void emu_reset_game(void)
+{
+	PicoReset();
+	reset_timing = 1;
+}
+
+void run_events_pico(unsigned int events)
+{
+	int lim_x;
+
+	if (events & PEV_PICO_SWINP) {
+		pico_inp_mode++;
+		if (pico_inp_mode > 2)
+			pico_inp_mode = 0;
+		switch (pico_inp_mode) {
+			case 2: plat_status_msg("Input: Pen on Pad"); break;
+			case 1: plat_status_msg("Input: Pen on Storyware"); break;
+			case 0: plat_status_msg("Input: Joystick");
+				PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
+				break;
+		}
+	}
+	if (events & PEV_PICO_PPREV) {
+		PicoPicohw.page--;
+		if (PicoPicohw.page < 0)
+			PicoPicohw.page = 0;
+		plat_status_msg("Page %i", PicoPicohw.page);
+	}
+	if (events & PEV_PICO_PNEXT) {
+		PicoPicohw.page++;
+		if (PicoPicohw.page > 6)
+			PicoPicohw.page = 6;
+		plat_status_msg("Page %i", PicoPicohw.page);
+	}
+
+	if (pico_inp_mode == 0)
+		return;
+
+	/* handle other input modes */
+	if (PicoPad[0] & 1) pico_pen_y--;
+	if (PicoPad[0] & 2) pico_pen_y++;
+	if (PicoPad[0] & 4) pico_pen_x--;
+	if (PicoPad[0] & 8) pico_pen_x++;
+	PicoPad[0] &= ~0x0f; // release UDLR
+
+	lim_x = (Pico.video.reg[12]&1) ? 319 : 255;
+	if (pico_pen_y < 8)
+		pico_pen_y = 8;
+	if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y)
+		pico_pen_y = 224 - PICO_PEN_ADJUST_Y;
+	if (pico_pen_x < 0)
+		pico_pen_x = 0;
+	if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X)
+		pico_pen_x = lim_x - PICO_PEN_ADJUST_X;
+
+	PicoPicohw.pen_pos[0] = pico_pen_x;
+	if (!(Pico.video.reg[12] & 1))
+		PicoPicohw.pen_pos[0] += pico_pen_x / 4;
+	PicoPicohw.pen_pos[0] += 0x3c;
+	PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
+}
+
+static void do_turbo(int *pad, int acts)
+{
+	static int turbo_pad = 0;
+	static unsigned char turbo_cnt[3] = { 0, 0, 0 };
+	int inc = currentConfig.turbo_rate * 2;
+
+	if (acts & 0x1000) {
+		turbo_cnt[0] += inc;
+		if (turbo_cnt[0] >= 60)
+			turbo_pad ^= 0x10, turbo_cnt[0] = 0;
+	}
+	if (acts & 0x2000) {
+		turbo_cnt[1] += inc;
+		if (turbo_cnt[1] >= 60)
+			turbo_pad ^= 0x20, turbo_cnt[1] = 0;
+	}
+	if (acts & 0x4000) {
+		turbo_cnt[2] += inc;
+		if (turbo_cnt[2] >= 60)
+			turbo_pad ^= 0x40, turbo_cnt[2] = 0;
+	}
+	*pad |= turbo_pad & (acts >> 8);
+}
+
+static void run_events_ui(unsigned int which)
+{
+	if (which & (PEV_STATE_LOAD|PEV_STATE_SAVE))
+	{
+		int do_it = 1;
+		if ( emu_check_save_file(state_slot) &&
+				(((which & PEV_STATE_LOAD) && (currentConfig.EmuOpt & EOPT_CONFIRM_LOAD)) ||
+				 ((which & PEV_STATE_SAVE) && (currentConfig.EmuOpt & EOPT_CONFIRM_SAVE))) )
+		{
+			const char *nm;
+			char tmp[64];
+			int keys, len;
+
+			strcpy(tmp, (which & PEV_STATE_LOAD) ? "LOAD STATE?" : "OVERWRITE SAVE?");
+			len = strlen(tmp);
+			nm = in_get_key_name(-1, -PBTN_MA3);
+			snprintf(tmp + len, sizeof(tmp) - len, "(%s=yes, ", nm);
+			len = strlen(tmp);
+			nm = in_get_key_name(-1, -PBTN_MBACK);
+			snprintf(tmp + len, sizeof(tmp) - len, "%s=no)", nm);
+
+			plat_status_msg_busy_first(tmp);
+
+			in_set_blocking(1);
+			while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))
+				;
+			while ( !((keys = in_menu_wait_any(50)) & (PBTN_MA3|PBTN_MBACK)) )
+				;
+			if (keys & PBTN_MBACK)
+				do_it = 0;
+			while (in_menu_wait_any(50) & (PBTN_MA3|PBTN_MBACK))
+				;
+			in_set_blocking(0);
+		}
+		if (do_it) {
+			plat_status_msg_busy_first((which & PEV_STATE_LOAD) ? "LOADING GAME" : "SAVING GAME");
+			PicoStateProgressCB = plat_status_msg_busy_next;
+			emu_save_load_game((which & PEV_STATE_LOAD) ? 1 : 0, 0);
+			PicoStateProgressCB = NULL;
+		}
+	}
+	if (which & PEV_SWITCH_RND)
+	{
+		plat_video_toggle_renderer();
+	}
+	if (which & (PEV_SSLOT_PREV|PEV_SSLOT_NEXT))
+	{
+		if (which & PEV_SSLOT_PREV) {
+			state_slot -= 1;
+			if (state_slot < 0)
+				state_slot = 9;
+		} else {
+			state_slot += 1;
+			if (state_slot > 9)
+				state_slot = 0;
+		}
+
+		plat_status_msg("SAVE SLOT %i [%s]", state_slot,
+			emu_check_save_file(state_slot) ? "USED" : "FREE");
+	}
+	if (which & PEV_MENU)
+		engineState = PGS_Menu;
+}
+
+void emu_update_input(void)
+{
+	unsigned int allActions[2] = { 0, 0 }, events;
+	static unsigned int prevEvents = 0;
+
+	/* FIXME: player2 */
+	allActions[0] = in_update();
+
+	PicoPad[0] = allActions[0] & 0xfff;
+	PicoPad[1] = allActions[1] & 0xfff;
+
+	if (allActions[0] & 0x7000) do_turbo(&PicoPad[0], allActions[0]);
+	if (allActions[1] & 0x7000) do_turbo(&PicoPad[1], allActions[1]);
+
+	events = (allActions[0] | allActions[1]) & PEV_MASK;
+
+	// volume is treated in special way and triggered every frame
+	if (events & (PEV_VOL_DOWN|PEV_VOL_UP))
+		plat_update_volume(1, events & PEV_VOL_UP);
+
+	if ((events ^ prevEvents) & PEV_FF) {
+		emu_set_fastforward(events & PEV_FF);
+		plat_update_volume(0, 0);
+		reset_timing = 1;
+	}
+
+	events &= ~prevEvents;
+
+	if (PicoAHW == PAHW_PICO)
+		run_events_pico(events);
+	if (events)
+		run_events_ui(events);
+	if (movie_data)
+		update_movie();
+
+	prevEvents = (allActions[0] | allActions[1]) & PEV_MASK;
+}
+
+static void mkdir_path(char *path_with_reserve, int pos, const char *name)
+{
+	strcpy(path_with_reserve + pos, name);
+	if (plat_is_dir(path_with_reserve))
+		return;
+	if (mkdir(path_with_reserve, 0777) < 0)
+		lprintf("failed to create: %s\n", path_with_reserve);
+}
+
+void emu_init(void)
+{
+	char dir[256];
+	int pos;
+
+	/* make dirs for saves */
+	pos = plat_get_root_dir(dir, sizeof(dir) - 4);
+	mkdir_path(dir, pos, "mds");
+	mkdir_path(dir, pos, "srm");
+	mkdir_path(dir, pos, "brm");
+
+	PicoInit();
+	PicoMessage = plat_status_msg_busy_next;
+	PicoMCDopenTray = emu_msg_tray_open;
+	PicoMCDcloseTray = menu_loop_tray;
+}
+
+void emu_finish(void)
+{
+	// save SRAM
+	if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
+		emu_save_load_game(0, 1);
+		SRam.changed = 0;
+	}
+
+	if (!(currentConfig.EmuOpt & EOPT_NO_AUTOSVCFG))
+		emu_writelrom();
+
+	PicoExit();
+}
+