From: Groepaz (groepaz_at_gmx.net)
Date: 2002-12-10 09:08:59
On Monday 09 December 2002 11:55, Ullrich von Bassewitz wrote:
> Thanks for finding the cause for the problem! However, I think that fixing
> the PLOT function for the VIC20 is a better solution, because it will fix
> all other uses of PLOT, too.
uhmz.. . i got the impression PLOT is just the kernal call and i would be
fixing at the right point.... oh well :)
> The kernal entry points for the CBM machines are no longer real kernal
> entry points, but just external symbols. For machines that have an "ideal"
> implementation in the kernal, these external symbols point to the kernal
> code. For others, the external symbols point to fixup stubs or even to
> complete replacement functions.
where are these located? (in the source ofcoz :o))
> This was needed in several other places to
> fix differences for other machines (the PETs being an example). So I've
> added a replacement PLOT function to the VIC20 code which should make the
> existing code work without any other changes (and all other code relying on
> PLOT too).
>
> BTW: The code for calculating the color ram pointers is already in the
> kernal ROM at $EAB2, so there's no need to reimplement it.
oh there is? mmmmh :)
btw, what do you think about adding a default expanded-vic target? seems to be
much more useful to me than unexpanded (3.5k is tight even for assembly ;=P)
ohwell....enough vic20 for me, back to tetris :o)
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