mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-09-11 01:03:15 +02:00
710 lines
20 KiB
C
710 lines
20 KiB
C
/****************************************************************************
|
|
* main.c
|
|
*
|
|
* Genesis Plus GX
|
|
*
|
|
* Copyright Eke-Eke (2007-2013), based on original work from Softdev (2006)
|
|
*
|
|
* Redistribution and use of this code or any derivative works are permitted
|
|
* provided that the following conditions are met:
|
|
*
|
|
* - Redistributions may not be sold, nor may they be used in a commercial
|
|
* product or activity.
|
|
*
|
|
* - Redistributions that are modified from the original source must include the
|
|
* complete source code, including the source code for all components used by a
|
|
* binary built from the modified sources. However, as a special exception, the
|
|
* source code distributed need not include anything that is normally distributed
|
|
* (in either source or binary form) with the major components (compiler, kernel,
|
|
* and so on) of the operating system on which the executable runs, unless that
|
|
* component itself accompanies the executable.
|
|
*
|
|
* - Redistributions must reproduce the above copyright notice, this list of
|
|
* conditions and the following disclaimer in the documentation and/or other
|
|
* materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************************/
|
|
|
|
#include "shared.h"
|
|
#include "font.h"
|
|
#include "gui.h"
|
|
#include "menu.h"
|
|
#include "history.h"
|
|
#include "file_slot.h"
|
|
#include "file_load.h"
|
|
#include "filesel.h"
|
|
#include "cheats.h"
|
|
|
|
#include <fat.h>
|
|
|
|
#ifdef HW_RVL
|
|
#include <iso9660.h>
|
|
#include <ogc/usbmouse.h>
|
|
|
|
extern bool sdio_Deinitialize();
|
|
extern void USBStorage_Deinitialize();
|
|
#endif
|
|
|
|
/* output samplerate, adjusted to take resampler precision in account */
|
|
#define SAMPLERATE_48KHZ 47992
|
|
|
|
u32 Shutdown = 0;
|
|
u32 ConfigRequested = 1;
|
|
char osd_version[32];
|
|
|
|
#ifdef LOG_TIMING
|
|
u64 prevtime;
|
|
u32 frame_cnt;
|
|
u32 delta_time[LOGSIZE];
|
|
u32 delta_samp[LOGSIZE];
|
|
#endif
|
|
|
|
|
|
#ifdef HW_RVL
|
|
/****************************************************************************
|
|
* Power Button callbacks
|
|
***************************************************************************/
|
|
static void PowerOff_cb(void)
|
|
{
|
|
Shutdown = 1;
|
|
ConfigRequested = 1;
|
|
reload = 0;
|
|
}
|
|
|
|
static void Reload_cb(void)
|
|
{
|
|
Shutdown = 1;
|
|
ConfigRequested = 1;
|
|
}
|
|
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Reset Button callback
|
|
***************************************************************************/
|
|
static void Reset_cb(void)
|
|
{
|
|
if (system_hw & SYSTEM_MD)
|
|
{
|
|
/* Soft Reset */
|
|
gen_reset(0);
|
|
}
|
|
else if (system_hw == SYSTEM_SMS)
|
|
{
|
|
/* assert RESET input (Master System model 1 only) */
|
|
io_reg[0x0D] &= ~IO_RESET_HI;
|
|
}
|
|
}
|
|
|
|
/***************************************************************************
|
|
* Genesis Plus Virtual Machine
|
|
*
|
|
***************************************************************************/
|
|
static void init_machine(void)
|
|
{
|
|
/* system is not initialized */
|
|
config.hot_swap &= 0x01;
|
|
|
|
/* mark all BIOS as unloaded */
|
|
system_bios = 0;
|
|
|
|
/* Genesis BOOT ROM support (2KB max) */
|
|
memset(boot_rom, 0xFF, 0x800);
|
|
FILE *fp = fopen(MD_BIOS, "rb");
|
|
if (fp != NULL)
|
|
{
|
|
/* read BOOT ROM */
|
|
fread(boot_rom, 1, 0x800, fp);
|
|
fclose(fp);
|
|
|
|
/* check BOOT ROM */
|
|
if (!memcmp((char *)(boot_rom + 0x120),"GENESIS OS", 10))
|
|
{
|
|
/* mark Genesis BIOS as loaded */
|
|
system_bios = SYSTEM_MD;
|
|
}
|
|
}
|
|
|
|
/* allocate global work bitmap */
|
|
memset(&bitmap, 0, sizeof (bitmap));
|
|
bitmap.width = 720;
|
|
bitmap.height = 576;
|
|
bitmap.pitch = bitmap.width * 2;
|
|
bitmap.viewport.w = 256;
|
|
bitmap.viewport.h = 224;
|
|
bitmap.viewport.x = 0;
|
|
bitmap.viewport.y = 0;
|
|
bitmap.data = texturemem;
|
|
}
|
|
|
|
static void run_emulation(void)
|
|
{
|
|
int sync;
|
|
|
|
/* main emulation loop */
|
|
while (1)
|
|
{
|
|
/* emulated system */
|
|
if (system_hw == SYSTEM_MCD)
|
|
{
|
|
/* 16-bit hardware + CD */
|
|
while (!ConfigRequested)
|
|
{
|
|
/* render frame */
|
|
system_frame_scd(0);
|
|
|
|
/* audio/video sync */
|
|
sync = NO_SYNC;
|
|
while (sync != (SYNC_VIDEO | SYNC_AUDIO))
|
|
{
|
|
/* update video */
|
|
sync |= gx_video_Update();
|
|
|
|
/* update audio */
|
|
sync |= gx_audio_Update();
|
|
}
|
|
|
|
/* check interlaced mode change */
|
|
if (bitmap.viewport.changed & 4)
|
|
{
|
|
/* VSYNC "original" mode */
|
|
if (!config.render && config.vsync && (gc_pal == vdp_pal))
|
|
{
|
|
/* framerate has changed, reinitialize audio timings */
|
|
audio_init(SAMPLERATE_48KHZ, get_framerate());
|
|
}
|
|
|
|
/* clear flag */
|
|
bitmap.viewport.changed &= ~4;
|
|
}
|
|
}
|
|
}
|
|
else if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
|
|
{
|
|
/* 16-bit hardware */
|
|
while (!ConfigRequested)
|
|
{
|
|
/* render frame */
|
|
system_frame_gen(0);
|
|
|
|
/* audio/video sync */
|
|
sync = NO_SYNC;
|
|
while (sync != (SYNC_VIDEO | SYNC_AUDIO))
|
|
{
|
|
/* update video */
|
|
sync |= gx_video_Update();
|
|
|
|
/* update audio */
|
|
sync |= gx_audio_Update();
|
|
}
|
|
|
|
/* check interlaced mode change */
|
|
if (bitmap.viewport.changed & 4)
|
|
{
|
|
/* VSYNC "original" mode */
|
|
if (!config.render && config.vsync && (gc_pal == vdp_pal))
|
|
{
|
|
/* framerate has changed, reinitialize audio timings */
|
|
audio_init(SAMPLERATE_48KHZ, get_framerate());
|
|
}
|
|
|
|
/* clear flag */
|
|
bitmap.viewport.changed &= ~4;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* 8-bit hardware */
|
|
while (!ConfigRequested)
|
|
{
|
|
/* render frame */
|
|
system_frame_sms(0);
|
|
|
|
/* audio/video sync */
|
|
sync = NO_SYNC;
|
|
while (sync != (SYNC_VIDEO | SYNC_AUDIO))
|
|
{
|
|
/* update video */
|
|
sync |= gx_video_Update();
|
|
|
|
/* update audio */
|
|
sync |= gx_audio_Update();
|
|
}
|
|
|
|
/* check interlaced mode change (PBC mode only) */
|
|
if (bitmap.viewport.changed & 4)
|
|
{
|
|
/* "original" mode */
|
|
if (!config.render && config.vsync && (gc_pal == vdp_pal))
|
|
{
|
|
/* framerate has changed, reinitialize audio timings */
|
|
audio_init(SAMPLERATE_48KHZ, get_framerate());
|
|
}
|
|
|
|
/* clear flag */
|
|
bitmap.viewport.changed &= ~4;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* stop video & audio */
|
|
gx_audio_Stop();
|
|
gx_video_Stop();
|
|
|
|
#ifdef LOG_TIMING
|
|
if (system_hw)
|
|
{
|
|
FILE *f;
|
|
char filename[64];
|
|
|
|
memset(filename, 0, 64);
|
|
strcpy(filename,"timings-");
|
|
if (!config.vsync || (config.tv_mode == !vdp_pal))
|
|
{
|
|
strcat(filename,"no_");
|
|
}
|
|
else
|
|
{
|
|
if (gc_pal)
|
|
{
|
|
strcat(filename,"50hz_");
|
|
}
|
|
else
|
|
{
|
|
strcat(filename,"60hz_");
|
|
}
|
|
}
|
|
strcat(filename,"vsync-");
|
|
if (vdp_pal)
|
|
{
|
|
strcat(filename,"pal-");
|
|
}
|
|
else
|
|
{
|
|
strcat(filename,"ntsc-");
|
|
}
|
|
if (config.render == 2)
|
|
{
|
|
strcat(filename,"prog.txt");
|
|
}
|
|
else
|
|
{
|
|
if (!config.render && !interlaced)
|
|
{
|
|
strcat(filename,"no_");
|
|
}
|
|
strcat(filename,"int.txt");
|
|
}
|
|
|
|
f = fopen(filename,"a");
|
|
if (f != NULL)
|
|
{
|
|
int i;
|
|
u32 min,max;
|
|
double total = 0;
|
|
double nsamples = 0;
|
|
|
|
if (delta_time[LOGSIZE - 1] != 0)
|
|
{
|
|
frame_cnt = LOGSIZE;
|
|
}
|
|
|
|
min = max = delta_time[0];
|
|
|
|
for (i=0; i<frame_cnt; i++)
|
|
{
|
|
fprintf(f,"%d ns - %d samples (%5.8f samples/sec)\n", delta_time[i], delta_samp[i], 1000000000.0*(double)delta_samp[i]/(double)delta_time[i]/4.0);
|
|
total += delta_time[i];
|
|
nsamples += delta_samp[i] / 4.0;
|
|
if (min > delta_time[i]) min = delta_time[i];
|
|
if (max < delta_time[i]) max = delta_time[i];
|
|
}
|
|
fprintf(f,"\n");
|
|
fprintf(f,"min = %d ns\n", min);
|
|
fprintf(f,"max = %d ns\n", max);
|
|
fprintf(f,"avg = %8.5f ns (%5.8f samples/sec, %5.8f samples/frame)\n\n\n", total/(double)i, nsamples/total*1000000000.0, nsamples/(double)i);
|
|
fclose(f);
|
|
}
|
|
}
|
|
|
|
memset(delta_time,0,LOGSIZE);
|
|
memset(delta_samp,0,LOGSIZE);
|
|
frame_cnt = prevtime = 0;
|
|
#endif
|
|
|
|
/* show menu */
|
|
ConfigRequested = 0;
|
|
mainmenu();
|
|
|
|
/* restart video & audio */
|
|
gx_video_Start();
|
|
gx_audio_Start();
|
|
}
|
|
}
|
|
|
|
/*********************************************************************************************************************************************************
|
|
Get emulator input framerate (actually used by audio emulation to approximate number of samples rendered on each frame, see audio_init in system.c)
|
|
*********************************************************************************************************************************************************/
|
|
double get_framerate(void)
|
|
{
|
|
/* Run emulator at original VDP framerate if console TV mode does not match emulated TV mode or VSYNC is disabled */
|
|
if (!config.vsync || (config.tv_mode == !vdp_pal))
|
|
{
|
|
return 0.0;
|
|
}
|
|
|
|
/* Otherwise, run emulator at Wii/Gamecube framerate to ensure perfect video synchronization */
|
|
if (vdp_pal)
|
|
{
|
|
/* 288p -> 13500000 pixels/sec, 864 pixels/line, 312 lines/field -> fps = 13500000/864/312 = 50.08 hz */
|
|
/* 288i,576i -> 13500000 pixels/sec, 864 pixels/line, 312.5 lines/field (two fields = one frame = 625 lines) -> fps = 13500000/864/312.5 = 50.00 hz */
|
|
return (config.render || interlaced) ? (27000000.0/864.0/625.0) : (13500000.0/864.0/312.0);
|
|
}
|
|
else
|
|
{
|
|
/* 240p -> 13500000 pixels/sec, 858 pixels/line, 263 lines/field -> fps = 13500000/858/263 = 59.83 hz */
|
|
/* 240i,480i -> 13500000 pixels/sec, 858 pixels/line, 262.5 lines/field (two fields = one frame = 525 lines) -> fps = 13500000/858/262.5 = 59.94 hz */
|
|
/* 480p -> 27000000 pixels/sec, 858 pixels/line, 525 lines/field -> fps = 27000000/858/525 = 59.94 hz */
|
|
return (config.render || interlaced) ? (27000000.0/858.0/525.0) : (13500000.0/858.0/263.0);
|
|
}
|
|
}
|
|
|
|
/*******************************************
|
|
Restart emulation when loading a new game
|
|
********************************************/
|
|
void reloadrom(void)
|
|
{
|
|
/* Cartridge "Hot Swap" support (make sure system has already been inited once and use cartridges) */
|
|
if ((config.hot_swap == 3) && ((system_hw != SYSTEM_MCD) || scd.cartridge.boot))
|
|
{
|
|
/* Only initialize cartridge hardware */
|
|
if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
|
|
{
|
|
/* 16-bit cartridge */
|
|
md_cart_init();
|
|
md_cart_reset(1);
|
|
}
|
|
else
|
|
{
|
|
/* 8-bit cartridge */
|
|
sms_cart_init();
|
|
sms_cart_reset();
|
|
}
|
|
}
|
|
|
|
/* Disc Swap support (automatically enabled if CD tray is open) */
|
|
else if ((system_hw != SYSTEM_MCD) || (cdd.status != CD_OPEN))
|
|
{
|
|
/* Initialize audio emulation */
|
|
interlaced = 0;
|
|
audio_init(SAMPLERATE_48KHZ, get_framerate());
|
|
|
|
/* System Power-On */
|
|
system_init();
|
|
system_reset();
|
|
|
|
/* Allow hot swap */
|
|
config.hot_swap |= 2;
|
|
}
|
|
|
|
/* Auto-Load Backup RAM */
|
|
slot_autoload(0,config.s_device);
|
|
|
|
/* Auto-Load State */
|
|
slot_autoload(config.s_default,config.s_device);
|
|
|
|
/* Load Cheat file */
|
|
CheatLoad();
|
|
}
|
|
|
|
/**************************************************
|
|
Shutdown everything properly
|
|
***************************************************/
|
|
void shutdown(void)
|
|
{
|
|
/* save current config */
|
|
config_save();
|
|
|
|
/* auto-save State file */
|
|
slot_autosave(config.s_default,config.s_device);
|
|
|
|
/* shutdown emulation core */
|
|
audio_shutdown();
|
|
|
|
/* shutdown audio & video engines */
|
|
gx_audio_Shutdown();
|
|
gx_video_Shutdown();
|
|
|
|
#ifdef HW_RVL
|
|
/* unmount all devices */
|
|
ISO9660_Unmount("dvd:");
|
|
fatUnmount("sd");
|
|
fatUnmount("usb");
|
|
|
|
/* shutdown all devices */
|
|
DI_Close();
|
|
sdio_Deinitialize();
|
|
USBStorage_Deinitialize();
|
|
MOUSE_Deinit();
|
|
#endif
|
|
}
|
|
|
|
/***************************************************************************
|
|
* M A I N
|
|
*
|
|
***************************************************************************/
|
|
int main (int argc, char *argv[])
|
|
{
|
|
#ifdef HW_RVL
|
|
/* enable 64-byte fetch mode for L2 cache */
|
|
L2Enhance();
|
|
|
|
/* initialize DI interface */
|
|
DI_UseCache(0);
|
|
DI_Init();
|
|
|
|
/* autodetect loader arguments */
|
|
if ((argc >= 3) && (argv[1] != NULL))
|
|
{
|
|
/* check if autoloading from USB is requested */
|
|
if (!strncasecmp(argv[1], "usb:/", 5))
|
|
{
|
|
/* reload to IOS58 for USB2 support */
|
|
if (IOS_GetVersion() != 58)
|
|
{
|
|
/* warning: DVD support will be disabled after IOS reloading ! */
|
|
IOS_ReloadIOS(58);
|
|
}
|
|
}
|
|
}
|
|
|
|
sprintf(osd_version, "%s (IOS %d)", VERSION, IOS_GetVersion());
|
|
#else
|
|
sprintf(osd_version, "%s (GCN)", VERSION);
|
|
#endif
|
|
|
|
/* initialize video engine */
|
|
gx_video_Init();
|
|
|
|
#ifndef HW_RVL
|
|
/* initialize DVD interface */
|
|
DVD_Init();
|
|
#endif
|
|
|
|
/* initialize input engine */
|
|
gx_input_Init();
|
|
|
|
/* initialize FAT devices */
|
|
int retry = 0;
|
|
int fatMounted = 0;
|
|
|
|
/* try to mount FAT devices during 3 seconds */
|
|
while (!fatMounted && (retry < 12))
|
|
{
|
|
fatMounted = fatInitDefault();
|
|
usleep(250000);
|
|
retry++;
|
|
}
|
|
|
|
if (fatMounted)
|
|
{
|
|
/* base directory */
|
|
char pathname[MAXPATHLEN];
|
|
sprintf (pathname, DEFAULT_PATH);
|
|
DIR *dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
|
|
/* default SRAM & Savestate files directories */
|
|
sprintf (pathname, "%s/saves",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/saves/md",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/saves/ms",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/saves/gg",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/saves/sg",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/saves/cd",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
|
|
/* default Snapshot files directories */
|
|
sprintf (pathname, "%s/snaps",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/snaps/md",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/snaps/ms",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/snaps/gg",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/snaps/sg",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/snaps/cd",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
|
|
/* default Cheat files directories */
|
|
sprintf (pathname, "%s/cheats",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/cheats/md",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/cheats/ms",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/cheats/gg",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/cheats/sg",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
sprintf (pathname, "%s/cheats/cd",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
|
|
/* default BIOS ROM files directories */
|
|
sprintf (pathname, "%s/bios",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
|
|
/* default LOCK-ON ROM files directories */
|
|
sprintf (pathname, "%s/lock-on",DEFAULT_PATH);
|
|
dir = opendir(pathname);
|
|
if (dir) closedir(dir);
|
|
else mkdir(pathname,S_IRWXU);
|
|
}
|
|
|
|
/* initialize audio engine */
|
|
gx_audio_Init();
|
|
|
|
/* initialize emulation */
|
|
history_default();
|
|
config_default();
|
|
init_machine();
|
|
|
|
/* file autoloading */
|
|
int autoload = config.autoload;
|
|
|
|
/* autodetect loader arguments */
|
|
if ((argc >= 3) && (argv[1] != NULL) && (argv[2] != NULL))
|
|
{
|
|
/* automatically load any file passed as argument */
|
|
autoload = 1;
|
|
|
|
/* add the file to the top of the history. */
|
|
history_add_file(argv[1], argv[2], 0);
|
|
}
|
|
|
|
/* automatically load first file from history list if requested */
|
|
if (autoload)
|
|
{
|
|
SILENT = 1;
|
|
if (OpenDirectory(TYPE_RECENT, -1))
|
|
{
|
|
if (LoadFile(0))
|
|
{
|
|
reloadrom();
|
|
gx_video_Start();
|
|
gx_audio_Start();
|
|
ConfigRequested = 0;
|
|
}
|
|
}
|
|
SILENT = 0;
|
|
}
|
|
|
|
/* show disclaimer before entering menu */
|
|
if (ConfigRequested)
|
|
{
|
|
legal();
|
|
}
|
|
|
|
/* initialize stub loader detection */
|
|
reload = 0;
|
|
|
|
#ifdef HW_RVL
|
|
/* autodetect loader arguments */
|
|
if ((argc >= 4) && (argv[3] != NULL))
|
|
{
|
|
/* assume proper loader stub exists */
|
|
reload = (void(*)())0x80001800;
|
|
|
|
/* return to loader when POWER buttons are pressed */
|
|
SYS_SetPowerCallback(Reload_cb);
|
|
}
|
|
else
|
|
{
|
|
/* autodetect HomeBrew Channel stub */
|
|
u32 *sig = (u32*)0x80001800;
|
|
if ((sig[1] == 0x53545542) && (sig[2] == 0x48415858))
|
|
{
|
|
reload = (void(*)())0x80001800;
|
|
}
|
|
|
|
/* by default, shutdown system when POWER buttons are pressed */
|
|
SYS_SetPowerCallback(PowerOff_cb);
|
|
|
|
}
|
|
#else
|
|
/* autodetect SDLoad stub */
|
|
u32 *sig = (u32*)0x80001800;
|
|
if (sig[0] == 0x7c6000a6)
|
|
{
|
|
reload = (void(*)())0x80001800;
|
|
}
|
|
#endif
|
|
|
|
/* RESET button callback */
|
|
SYS_SetResetCallback(Reset_cb);
|
|
|
|
/* main emulation loop */
|
|
run_emulation();
|
|
|
|
/* we should never return anyway */
|
|
return 0;
|
|
}
|