emulinks.de

Astoundingly nobody seems to have ported Genesis Plus to Linux yet. (A GameCube Linux port seems to exist, though.) Anyway, I have ported the DOS (Allegro) and Windows (SDL) versions to Linux. Get the source code here. (I will add it to the emulator page later.)

And while we’re at it, here is an update to my Linux port of SMS Plus to version 1.2. Besides integrating the massive amount of changes in version 1.2, this release also replaces the busy-waiting throttling function by an usleep(), reducing CPU load from full to nil.

I just uploaded the source code for my SDL port of Sega Master System emulator Dega, updated to the current version 1.12, to the emulator page. New features of the SDL port include joystick support (sent to me two and a half years ago by David Longbottom), 2x scaling, and the ability to toggle scaling and fullscreen/windowed mode at runtime. Have fun.

Here’s how a really portable emulator looks like. It took the following snippet of code to get Ubernes running with SDL:

#include "Nes.h"
#include <SDL/SDL.h>

int main(int argc, char** argv)
{
  Nes* nes = new Nes();
  nes->loadCartridge("cart.nes");

  SDL_Surface* screen = SDL_SetVideoMode(256,240,8,SDL_HWSURFACE);
  SDL_Color palette[64];
  for(int i = 0; i < 64; i++) {
    Uint32 col = nes->mPpu->mPalette[i];
    palette[i].b = col & 0xff; col >> = 8;
    palette[i].g = col & 0xff; col >> = 8;
    palette[i].r = col & 0xff;
  }
  SDL_SetColors(screen, palette, 0, 64);

  while(1) {
    nes->calcFrame();
    SDL_LockSurface(screen);
    memcpy(screen->pixels, nes->mPpu->display, 256*240);
    SDL_UnlockSurface(screen);
    SDL_Flip(screen);
  }
}

Five minutes at worst. Just a hint to those people who don’t give a damn whether LPDIRECTDRAWHEYTHATREMINDSMEOFANICESTORYWHYNOTPUTITINATYPENAMESURFACE7 exists on anything but their own poor excuse for an operating system.