Re: VIC20 KERNAL Bug

From: Groepaz (groepaz_at_gmx.net)
Date: 2003-02-02 16:21:29

> Now I think I found the reason, the following code in the VIC20 (PAL)
> KERNAL ROM: .C:fd62   B1 C3      LDA ($C3),Y
> .C:fd64   91 C3      STA ($C3),Y
> .C:fd66   99 14 03   STA $0314,Y
>
> This copies some vectors from ROM to RAM, but why does it contain an STA
> command back to ROM? I think I'm going to patch this out with two NOPs, and

looks to me like either a protection or (more likely) a leftover from 
developing times.... the c64 kernel has a simelar (the same?...might well be 
true) problem.

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