Subject: Re: [stella] Indirect indexed addressing From: "Kroko" <Nil.Krokodil@xxxxxxx> Date: Tue, 27 Apr 2004 20:03:59 +0200 |
> Another thing to consider, the other 6502 environments don't have to > share zero page with the stack. If I recall correctly, the stack on > the C= systems was $0100-$01ff. I think from the pocessors point of view, all 6502 based systems have their stack at $100-$1FF, also the VCS 2600. If you watch the address- bus, I am almost sure you will see $01FF rather than $00FF when the 6502 makes an instruction which involves the stack. The memory location which is accessed is $00FF because Bit 8 is not relevant, but the 6502 tries to access $01FF. -Kroko ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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