Re: [stella] Usefull illegal opcodes (part 2: NOP)

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Re: [stella] Usefull illegal opcodes (part 2: NOP)

Subject: Re: [stella] Usefull illegal opcodes (part 2: NOP)
From: Manuel Polik <manuel.polik@xxxxxxxxxxx>
Date: Tue, 06 Mar 2001 13:47:57 +0100

Ruffin Bailey wrote:

> What does "ABS" mean?  I apologize in advance if that's painfully obvious
> and I'm missing it.

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 :-)

Greetings,
	Manuel

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Current Thread
[stella] Usefull illegal opcodes (part 2: NOP) Thomas Jentzsch - Tue, 6 Mar 2001 04:31:45 -0500 (EST) Ruffin Bailey - Tue, 6 Mar 2001 07:35:25 -0500 (EST) Manuel Polik - Tue, 6 Mar 2001 07:56:45 -0500 (EST) <= <Possible follow-ups> Thomas Jentzsch - Tue, 6 Mar 2001 08:29:03 -0500 (EST)

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