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| From: Rachy (all posts)
Date: 2000-03-21
Subject: FF09 and interrupts Re: Icicle Works 1,2,3,4
|
Hello once again!
On 21 Mar 00, at 0:11, Mike Dailly wrote:
> Yeah, in theory, it reads, shifts and writes... this isn't what seems to
> happen. It reads, writes, shifts, writes... I do this as well.. very
> odd... :-(
Ahha! I would never tought of. I know the fact, that some of the instructions behave some other ways as it written in books, but I did not realized this fact has to do anything with my problem. BTW clearing works very well... :)
> MY problem.... is that the loop doesn't allow an IRQ in... or it
> does.. can't remember which! And this is wrong, and is due to a minor
> timing problem... but at this stage, minor problems are major ones.. and a
> real git to fix..
Been there, did that... ;)))
In my case: some of the programs checking for interrupt in a very short time after clearing the interrupt flags. (Short this time means in the same scanline. Maybe Icicle did the same, I don't remember, it was more than 2 years ago.) Because of this I had to add some kind of
"interrupt warning" just before of the line, which one causes the raster interrupt. I can't call back the details, but I can check it out, if anybody needs.
Bye:
Almos Rajnai
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| Rachy of Bi0Hazard | PowerAmiga owner | ATO Hungarian |F0NT! |
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