3 ms·

Interesting how meaning changes. Back when Wolfenstein was made, "without a graphics API" just meant mov ax, 13h int 10h

• Gnurou 9y ago
  ... and even there you were using a graphics api, provided by your video card's bios and compatible across various manufacturers.
  • Koshkin 9y ago
    Not really - you'd be mostly just writing into the video buffer.
    • TickleSteve 9y ago
      int10h is the API (BIOS)... that just causes the mode switch. What he really meant (direct RAM access): void putpixel_13h(int x, int y, int color) { _farpokeb(_dos_ds, 0xA0000+y*320+x, color); }
      • Koshkin 9y ago
        Yeah, but nobody does that.