[atari7800] Re: 320 modes

  • From: "Eric Ball" <eric.l.ball@xxxxxxxxx>
  • To: <atari7800@xxxxxxxxxxxxx>
  • Date: Wed, 9 Apr 2008 18:55:55 -0400

Each 160 pixel is 5 bits of line RAM. The 320 modes only change how the bits are read, not written. So unless all 5 bits are zero (and kangaroo mode off), then all bits are changed to the new value. If kangaroo mode is on, then all 5 bits are always changed and any color 0 pixels are displayed as the background color.

Other related posts: