peteym5 Posted October 18, 2023 Report Share Posted October 18, 2023 I am reading the documentation on 7800 Display Lists and something stumbled me about 4 or 5 byte entries. How does the Maria chip know if it is a 4 or 5 byte entry? I am trying to formulate better ways to move objects around on screen and switching over to use Assembly and C. I am getting away from using another programming language. Quote Link to comment Share on other sites More sharing options...
PCL Posted October 18, 2023 Report Share Posted October 18, 2023 (edited) Maria knows from the second byte in the header. If bits 0..4 are all 0, it's either a 5-byte header or a display list terminator. Otherwise, if any of bits 0..4 are set it's a 4-byte header. Funnily enough I'm thinking about going the other way. Everything I've done on the 7800 so far has been in assembler and I'm pondering giving 7800basic a try. Edited October 18, 2023 by PCL Justin and DegasElite 1 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.