* Re: IO-PORTS (part 2)
2002-05-15 7:18 IO-PORTS (part 2) Qwerty
@ 2002-05-15 4:32 ` David C. Hoos, Sr.
0 siblings, 0 replies; 2+ messages in thread
From: David C. Hoos, Sr. @ 2002-05-15 4:32 UTC (permalink / raw)
----- Original Message -----
From: "Qwerty" <alexanderdupont@yahoo.com>
Newsgroups: comp.lang.ada
To: <comp.lang.ada@ada.eu.org>
Sent: May 15, 2002 2:18 AM
Subject: IO-PORTS (part 2)
<snip>
>
> The program has to be interrupt-driven. What interrupt_id do I have to
> use for the COM1-port (I suppose Names.SIGINT ??? What else, because
> it's not working).
>
If you uise the DOS interrupts package at
http://users.ncrvnet.nl/gmvdijk/other_os.html#DOSINT
then you use Jerry's interrupt chaining mechanism, and you use whatever
IRQ is assigned to the port you're using.
>
> How to use the Interrupt_Priority pragma? I mean, you have to write
> something like: pragma Interrupt_Priority(???).. But I don't really know
> what to write in the ??? place, even constants like Max_Priority as
> specified in the Systems package don't compile..
> BTW My PC is an Intel with Windows 98.
>
I wouldn't even bother with interrupt priorities, and in any case, they
don't apply to Jerry's package.
>
^ permalink raw reply [flat|nested] 2+ messages in thread
* IO-PORTS (part 2)
@ 2002-05-15 7:18 Qwerty
2002-05-15 4:32 ` David C. Hoos, Sr.
0 siblings, 1 reply; 2+ messages in thread
From: Qwerty @ 2002-05-15 7:18 UTC (permalink / raw)
Hi,
Thanks for the help on my first question (see topic IO-PORTS). I already
have a sort of working prototype but still I have some questions left.
The program has to be interrupt-driven. What interrupt_id do I have to
use for the COM1-port (I suppose Names.SIGINT ??? What else, because
it's not working).
How to use the Interrupt_Priority pragma? I mean, you have to write
something like: pragma Interrupt_Priority(???).. But I don't really know
what to write in the ??? place, even constants like Max_Priority as
specified in the Systems package don't compile..
BTW My PC is an Intel with Windows 98.
Any help is welcome,
Alexander
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