Posted By
TLC
on 2010-12-19
16:22:08
|  Re: Vertical splitting
Wasn't my invention AFAIK... or at least not exclusively. I did code "cycle exact" timing routines back in 1992 or 1993... but not this way... those were all "double interrupt" based ones. Later it "cleared down" to this simple form. AFAIK similar routines are widely utilized.
You seem to be lucky. ...Unless you also redirected the ROM IRQ vector, and set your raster interrupt position to a non-badline character area position, that is...
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