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Retro Character Map Video Driver

Started by kevin, January 06, 2019, 07:49:10 AM

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kevin

  Retro Character Map Video Driver


This is a video of the character map display mode as you might have seen on a Vic20 system back in the early 1980's.    The screen is made up of 22 by 23 characters, each character is 8 by 8 pixels and has two colour controls in a separate colour map.  The colour map lets you choose the colour of the background and foreground from a palette of 16 colours.  So the character can only have two unique colours within it.    This is not actually how the Vic20 / C64 worked,  but similar enough for what i've got in mind.

The display routines are just big nest of fastPixel plots, where all the combinations are pre- computed in a On GOTO jump table.   I didn't write the jump table, choosing to the write some code that would generate the source code for me.      


Video:

 


 Music: https://bensound.com


Download:

     Attached bellow