Re: LZ: Anyone (successfully) used the EXX command?

Re: LZ: Anyone (successfully) used the EXX command?

• Subject: Re: LZ: Anyone (successfully) used the EXX command?
• From: barrym <barrym@neosoft.com>
• Date: Mon, 23 Sep 1996 18:56:25 -0500 (CDT)
• In-Reply-To: <32469019.338324@pilot.msu.edu>

On Mon, 23 Sep 1996, Mel Tsai wrote:


> What exactly happens when you disable interrupts?  I mean, can you
> still use the link port?  I read in the Zshell archives somewhere
> saying that you can't use interrupt driven sound or greyscale when you
> disable interrupts...
 
You can't do much of anything except raw processing when
you disable interrupts.  The usual practice is to disable
interrupts in a routine only for the short time that you
have to and then re-enable them.  Usually just for a few
instructions.  I don't know how sensitive the 85 is to this
but I doubt if you can read the keyboard or do much of
anything else till they're re-enabled.


Barry

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