I've confirmed that I can edit bitmaps and tilemaps with these routines, they just need to be put into an interactive system, and with some stuff to drive the VDP.

The additions to the system stand at 400 lines of commented Forth, including:

* A "fast type" eZ80 assembly routine (using a OS call to blit bytes to VDP, which should really be put in the core Forth)
* Colorized memory dumps for better readability
* Memory arenas for use as safe scratchpad buffers
* Linear interpolation
* Line, rect, fillrect drawing that can indirect to a plotting routine
* 2D cursor that wraps the drawing commands as a dynamic instance
* 2D array with bounds checks

#forthlang #agon

I actually couldn't resist, and made a new version, with an added reference to the programming language #FORTH instead. ;)

"May FORTH be with Boo" on Imgur.com

#MayFourth #Boo #BaldursGate #MiniatureGiantSpaceHamster #Minsc #ForthLang

Credits:

• Sketch of computer modified from "Old computer sketch" by Nadyaus

• FORTH logo

• Boo character profile background from Beamdog's post about Baldur's Gate-inspired Easter Eggs

• Composited with @Krita (Krita.org)