matthew180 Posted July 6, 2021 Author Share Posted July 6, 2021 You will have to unlock the F18A before you can use any of the enhanced color capabilities. You can set T80 mode while the F18A is locked, but it is restricted to the original T80 functionality, i.e. one FG/BG color for all the tiles. Once you unlock the F18A, you can then use the enhanced T80 features. I'm sure some examples of doing this have been posted, let me see if I can find one. Also note that when the F18A is unlocked, poorly written software can corrupt the VDP registers. Also, if you use console routines you will have to follow the console rules for the VDP, as Lee pointed out already; that is why you had to put a copy of VR01 into memory location >83D4. 3 Quote Link to comment Share on other sites More sharing options...
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