Quote:
The N flag contains most significant bit of the of the subtraction result. This is only occasionally useful. However, it is NOT the signed comparison result, as is sometimes claimed, as the following examples illustrate...
Question on conditional branch
Re: Question on conditional branch
Well that's awkward - if the tutorial is wrong then we need to fix it. I now see Bruce's document here says
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barrym95838
- Posts: 2056
- Joined: 30 Jun 2013
- Location: Sacramento, CA, USA
Re: Question on conditional branch
Bruce elucidates BDD's point here and helpfully offers some work-arounds in that same article.
[oops, I didn't read Ed's reply before posting ...
... I still believe that I may have added some value, so I'll leave it.]
[oops, I didn't read Ed's reply before posting ...
... I still believe that I may have added some value, so I'll leave it.]Got a kilobyte lying fallow in your 65xx's memory map? Sprinkle some VTL02C on it and see how it grows on you!
Mike B. (about me) (learning how to github)
Mike B. (about me) (learning how to github)
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BigDumbDinosaur
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- Location: Midwestern USA (JB Pritzker’s dystopia)
- Contact:
Re: Question on conditional branch
barrym95838 wrote:
[oops, I didn't read Ed's reply before posting ... ... I still believe that I may have added some value, so I'll leave it.]
... I still believe that I may have added some value, so I'll leave it.]That's okay. All of us are, or have been, honorary employees of the Department of Redundancy Department.
x86? We ain't got no x86. We don't NEED no stinking x86!
Re: Question on conditional branch
BigDumbDinosaur wrote:
barrym95838 wrote:
[oops, I didn't read Ed's reply before posting ... ... I still believe that I may have added some value, so I'll leave it.]
... I still believe that I may have added some value, so I'll leave it.]That's okay. All of us are, or have been, honorary employees of the Department of Redundancy Department.
They're responsible for ATM machines and hot water heaters, right?