I find this interesting, but I don't have much to contribute :-)  I assume 
you have a complete memory map for the 1541?
Bill

-------- Original Message --------
> From: Ruud@baltissen.org
> Sent: Monday, April 20, 2009 1:59 PM
> To: cbm-hackers@ling.gu.se
> Subject: Re: 1541 $01xx area
> 
> Hallo allemaal,
> 
> 
> > I must have missed something but where?
> 
> As usual I stumbled upon two things by accident just ten minutes after 
> sending the previous email. It seems that two pairs of zero-page 
addresses 
> are used during the decoding. One of them is loaded with the value $0145 

> and is incremented. From the other one the high byte is loaded with $01. 

> Where possible I replaced $01 with $08. But no success yet. 
> 
> An much easier way is to use the $08xx area for my variables. But that 
> leaves me with just about 60 stack bytes. Who knows a way to find out how 

> much stack is used? One way: fill the stack with, lets say, $55, do some 

> havy things and then check what is left over of the $55's.
> Any other idea is welcome.
> 
> 
> --
>     ___
>    / __|__
>   / /  |_/     Groetjes, Ruud Baltissen
>   \ \__|_\
>    \___|       http://Ruud.C64.org
> 
> 
> 
> 
> 
> 
> 
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