P Witte wrote:
> It appears that the CIRCLE routine does not create a leak-proof form at this
> resolution. The FILL buffer then overflows and scribbles over some other
> vitals in memory.

gw_pixel_asm:

* The fill buffer is arranged to have space for up to 256 lines with each
* entry being a pair of words.
[...]
* An improvement to the system would be to re-allocate the fill buffer whenever
* the drawing area of a window is changed, and make it have just enough lines.
* This would then allow for windows taller than 256 lines, which will crash the
* current code!

Marcel

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