I wanted a high resolution graphics mode that would work on my 8.4" TFT LCD monitor - which can only sync to 640x480. Since the propeller does not have enough memory for a bitmap that size, I decided to modify the 512x384 driver to make a 640x240 bitmap mode.
I also modified the color tiles to be 32x16 so that the color blocks appear square on the monitor.
Memory usage:
4,800 longs for the bitmap
300 words for the color map
As this is only a minor mod of the Parallax driver, the copyright ofcourse stays with Parallax!
Enjoy!
Bill
http://www.mikronauts.com