arm_linux.S for cache ops and random fixes

[libpicofe.git] / gp2x / main.c

// (c) Copyright 2006 notaz, All rights reserved.\r
// Free for non-commercial use.\r
\r
// For commercial use, separate licencing terms must be obtained.\r
\r
#include <stdio.h>\r
#include <stdlib.h>\r
#include <string.h>\r
#include <unistd.h>\r
#include <strings.h>\r
#include <linux/limits.h>\r
\r
#include "gp2x.h"\r
#include "menu.h"\r
#include "../common/menu.h"\r
#include "../common/emu.h"\r
#include "../common/config.h"\r
#include "emu.h"\r
#include "940ctl.h"\r
#include "version.h"\r
\r
#include "squidgehack.h"\r
#include "cpuctrl.h"\r
\r
\r
extern char *ext_menu, *ext_state;\r
extern int select_exits;\r
extern char *PicoConfigFile;\r
static int load_state_slot = -1;\r
int mmuhack_status = 0;\r
char **g_argv;\r
\r
void parse_cmd_line(int argc, char *argv[])\r
{\r
	int x, unrecognized = 0;\r
\r
	for(x = 1; x < argc; x++)\r
	{\r
		if(argv[x][0] == '-')\r
		{\r
			if(strcasecmp(argv[x], "-menu") == 0) {\r
				if(x+1 < argc) { ++x; ext_menu = argv[x]; } /* External Frontend: Program Name */\r
			}\r
			else if(strcasecmp(argv[x], "-state") == 0) {\r
				if(x+1 < argc) { ++x; ext_state = argv[x]; } /* External Frontend: Arguments */\r
			}\r
			else if(strcasecmp(argv[x], "-config") == 0) {\r
				if(x+1 < argc) { ++x; PicoConfigFile = argv[x]; }\r
			}\r
			else if(strcasecmp(argv[x], "-selectexit") == 0) {\r
				select_exits = 1;\r
			}\r
			else if(strcasecmp(argv[x], "-loadstate") == 0) {\r
				if(x+1 < argc) { ++x; load_state_slot = atoi(argv[x]); }\r
			}\r
			else {\r
				unrecognized = 1;\r
				break;\r
			}\r
		} else {\r
			/* External Frontend: ROM Name */\r
			FILE *f;\r
			strncpy(romFileName, argv[x], PATH_MAX);\r
			romFileName[PATH_MAX-1] = 0;\r
			f = fopen(romFileName, "rb");\r
			if (f) fclose(f);\r
			else unrecognized = 1;\r
			engineState = PGS_ReloadRom;\r
			break;\r
		}\r
	}\r
\r
	if (unrecognized) {\r
		printf("\n\n\nPicoDrive v" VERSION " (c) notaz, 2006-2008\n");\r
		printf("usage: %s [options] [romfile]\n", argv[0]);\r
		printf( "options:\n"\r
				"-menu <menu_path> launch a custom program on exit instead of default gp2xmenu\n"\r
				"-state <param>    pass '-state param' to the menu program\n"\r
				"-config <file>    use specified config file instead of default 'picoconfig.bin'\n"\r
				"                  see currentConfig_t structure in emu.h for the file format\n"\r
				"-selectexit       pressing SELECT will exit the emu and start 'menu_path'\n"\r
				"-loadstate <num>  if ROM is specified, try loading slot <num>\n");\r
	}\r
}\r
\r
\r
int main(int argc, char *argv[])\r
{\r
	g_argv = argv;\r
\r
	emu_prepareDefaultConfig();\r
	emu_ReadConfig(0, 0);\r
	config_readlrom(PicoConfigFile);\r
\r
	gp2x_init();\r
	if (currentConfig.EmuOpt&0x10) {\r
		int ret = mmuhack();\r
		printf("squidge hack code finished and returned %i\n", ret); fflush(stdout);\r
		mmuhack_status = ret;\r
	}\r
	cpuctrl_init();\r
	// Reset940(1);\r
	// Pause940(1);\r
	if (currentConfig.EmuOpt&0x100) {\r
		printf("setting RAM timings.. "); fflush(stdout);\r
		// craigix: --trc 6 --tras 4 --twr 1 --tmrd 1 --trfc 1 --trp 2 --trcd 2\r
		set_RAM_Timings(6, 4, 1, 1, 1, 2, 2);\r
		printf("done.\n"); fflush(stdout);\r
	}\r
	sharedmem_init();\r
	emu_Init();\r
	menu_init();\r
\r
	engineState = PGS_Menu;\r
\r
	if (argc > 1)\r
		parse_cmd_line(argc, argv);\r
\r
	if (engineState == PGS_ReloadRom)\r
	{\r
		if (emu_ReloadRom(romFileName)) {\r
			engineState = PGS_Running;\r
			if (load_state_slot >= 0) {\r
				state_slot = load_state_slot;\r
				emu_SaveLoadGame(1, 0);\r
			}\r
		}\r
	}\r
\r
	for (;;)\r
	{\r
		switch (engineState)\r
		{\r
			case PGS_Menu:\r
				menu_loop();\r
				break;\r
\r
			case PGS_ReloadRom:\r
				if (emu_ReloadRom(romFileName))\r
					engineState = PGS_Running;\r
				else {\r
					printf("PGS_ReloadRom == 0\n");\r
					engineState = PGS_Menu;\r
				}\r
				break;\r
\r
			case PGS_RestartRun:\r
				engineState = PGS_Running;\r
\r
			case PGS_Running:\r
				emu_Loop();\r
				break;\r
\r
			case PGS_Quit:\r
				goto endloop;\r
\r
			default:\r
				printf("engine got into unknown state (%i), exitting\n", engineState);\r
				goto endloop;\r
		}\r
	}\r
\r
	endloop:\r
\r
	emu_Deinit();\r
	sharedmem_deinit();\r
	cpuctrl_deinit();\r
	gp2x_deinit();\r
	if(mmuhack_status)\r
		mmuunhack();\r
\r
	return 0;\r
}\r