Subject: Re: [stella] Supercharger Bankswitches and RAM access! From: Eckhard_Stolberg@xxxxxxxxxxxxxxxxxxxxx (Eckhard Stolberg) Date: Sat, 15 Mar 1997 18:45:26 +0100 |
>Hi again! :-) ><< > Again intructions don't matter. The value is stored to the address that is > accessed 3 or 4 processor cycles after the access to $F0xx. I am not sure > about the timing though. But indirect accesses work too and they first have > to read the address from the zeropage, which takes some cycles. Also in my > programm I have to put a NOP between the two accesses, like > >> > >Heisst das, dass die Adresse nach einer bestimmten Anzahl von Zyklen folgen >muss? >Ich meine, wenn ich 100 NOP's nach einer lda RAM einfuege, dass ich nicht >mehr >mit cmp f123 einen 'poke' ausloesen wuerde? >(Die Zyklen Informationen habe ich bis jetzt ganz sicherlich nicht bedacht!) > Soll ich jetzt in deutsch antworten? Ich glaube ich bleibe bei Englisch, damit der Rest der Gruppe mich verstehen und notfalls verbessern kann. :-) The question was, if a CMP $f123 would cause a write, if I put 100 NOPs after the CMP $F000,X. I don't have a debugger for the Supercharger, but I think, if my theory is correct, this constellation would have the 2nd or 3rd NOP cause the write to finish and therefore be overwritten by the value to write. Ciao, Eckhard Stolberg -- Archives available at http://www.biglist.com/lists/stella/archives/ E-mail UNSUBSCRIBE in the body to stella-request@xxxxxxxxxxx to be removed.
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