void write_MBC2(uint16_t addr, uint8_t val) {
switch (addr & 0xF000) {
case 0x0000:
case 0x1000: // Activate/Deactivate RAM banking
// If deactivating, save to file,
if ((addr & 0x100) == 0x0) {
if (battery && ram_banking && ((val & 0xF) != 0xA)) {
write_SRAM();
}
ram_banking = ((val & 0xF) == 0xA);
}
break;
case 0x2000:
case 0x3000:/* Set ROM bank */
if ((addr & 0x100) != 0x0) {
cur_ROM_bank = (val & 0xF) + ((val & 0xF) == 0);
}
break;
case 0xA000: // Write to RAM bank if RAM banking enabled
if (ram_banking) {
RAM_banks[0][addr & 0x1FF] = val & 0xF;
}
break;
}
}
int main(int argc, char **argv) {
int debug = 0;
int cgb_mode = 1;
//char file_name[1024] = "sdmc:/rom.gb";
char file_name[1024];
if (!selectFile(&cgb_mode, file_name)) {
cleanup();
return 0;
};
ClientOrServer cs = NO_CONNECT;
set_log_level(LOG_INFO);
if (!init_emu(file_name, debug, !cgb_mode, cs)) {
log_message(LOG_ERROR, "Failed to initialize emulator\n");
cleanup();
return 1;
}
log_message(LOG_INFO, "Running emu\n");
run();
write_SRAM();
cleanup();
return 0;
}
/* Update current state of GameBoy keys as well as control
* other external actions for the emulator */
void update_keys() {
SDL_Event event;
if (SDL_PollEvent(&event)) {
switch (event.type) {
// exit if the window is closed
case SDL_QUIT:
write_SRAM();
exit(0);
break;
#ifndef PSP
case SDL_KEYDOWN: // Key pressed
keys[event.key.keysym.sym] = 1;
if (keys[SDLK_ESCAPE]) {
write_SRAM();
exit(0);
}
break;
case SDL_KEYUP: //Key "unpressed"
keys[event.key.keysym.sym] = 0;
break;
#endif
#ifdef PSP
case SDL_JOYBUTTONDOWN:
keys[event.jbutton.button] = 1;
break;
case SDL_JOYBUTTONUP:
keys[event.jbutton.button] = 0;
break;
#endif
}
}
}