Subject: Re: [stella] Usefull illegal opcodes (part 2: NOP) From: "Thomas Jentzsch" <tjentzsch@xxxxxx> Date: Tue, 6 Mar 2001 14:28:54 +0100 |
Manuel Polik wrote: > Ruffin Bailey wrote: > > > What does "ABS" mean? I apologize in advance if that's painfully obvious > > and I'm missing it. Sorry, I'm so used to my personal abrevations (ZP, ABS, IMM, REL, IND,...), that I sometimes forget to explain. So Manuel does it for me: > ABS, in this case, stands for 'absolut adressed', that means it's > adressed with 2 bytes, so it's skipping the following LDA with doing a > totally useless 3-byte BIT operation. And that is the trick. Saves > memory, wastes cycles :-) You find *all* opcodes with bytes and cycles in the lastest mail of wizard (illegal 6502). Have fun! _______________________________________________________ Thomas Jentzsch | *** Every bit is sacred ! *** tjentzsch at web dot de | _______________________________________________________________________________ Alles unter einem Dach: Informationen, Fun, E-Mails. Bei WEB.DE: http://web.de Die große Welt der Kommunikation: E-Mail, Fax, SMS, WAP: http://freemail.web.de - Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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