2 ms·

Strangely enough, I haven't written 8086 assembly since 1988, when I wrote the ellipse-drawing code used in Windows.

• garganzol 4y ago
  Pardon my interest, are you happen to be a former Microsoftee?
  • kens 4y ago
    I was an intern in the summer of 1988. Instead of staying, I went back to grad school which in retrospect probably cost me a fortune :-)
• madmoose 4y ago
  Aaron Giles was just lamenting the other day that the GDI ellipse drawing is apparently slightly lopsided, since he's trying to recreate it :) https://corteximplant.com/@aaronsgiles/110121906721852861 https://corteximplant.com/@aaronsgiles/110121906721852861
  • kens 4y ago
    Hopefully that's not my bug :-) Before my code [1], small ellipses looked terrible: a small circle looked like a stop sign and others looked corrugated. [1] I can't take much credit. The code was Bresenham's algorithm, as explained to me by the OS/2 group. At the time, OS/2 was the cool operating system that was the wave of the future and Windows was this obscure operating system that nobody cared about. The impression I got was that the OS/2 people didn't really want to waste their time talking to us.