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| From: pzsolt (all posts)
Date: 2000-08-10
Subject: Re: Interrupts
|
Hi,
thanks for the answer. I read it as carefully as I can, but I write because something is not clear for me and I know there are more professional people on the list than me.
Thanks.
Zsolt
----- Original Message -----
From: Marko Mäkelä <msmakela@cc.hut.fi>
To: <plus4@c64.rulez.org>
Sent: Thursday, August 10, 2000 2:45 PM Subject: Re: Interrupts
> On Thu, 10 Aug 2000, Zsolt Prievara wrote:
>
> > I've got a brand-new question! ;-) TED generates an interrupt, this is the
> > 1st cycle.
> > When does the CPU check the I flag?
>
> Read the "64doc" file more carefully. The question is answered there. It
> was fairly easy to determine this by writing a test program that contained
> a SEI instruction near the spot where the interrupt was triggered. Yes,
> it is possible that the interrupt sequence starts right after the
> processor has executed a SEI instruction.
>
> Marko
>
> --this message went through the plus4@c64.rulez.org emailing list---
>
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