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From: n8541751@unicorn.cc.wwu.edu (Where there is darkness, light)
Newsgroups: comp.os.msdos.programmer
Subject: Re: Interrupt Driven Serial IO...
Message-ID: <1991Feb6.070153.18992@unicorn.cc.wwu.edu>
Date: 6 Feb 91 07:01:53 GMT
References: <8871@hub.ucsb.edu>
Distribution: comp
Organization: Monkey Tree Computer Services
Lines: 23

gnome@lemon.ucsb.edu (Andy Perrine;6512 Segovia #313;961-7466;968-0403) writes:

>I've recently been playing with doing interrupt driven serial IO. I've
>consulted several books, and actually after getting all sorts of
>bizarre bugs, finally have something that resembles a plain run of the
>mill terminal program. The odd thing is this: Somehow keystrokes seem
>to be interfering with the receiving of data.  Is the keyboard
>interrupt somehow interfering with my serial port interrupt? 

Get a copy of the book called Dos Programmer's Reference, by Microsoft Press.

There's a good example of an interrupt driven terminal program.

Interrupt driven means you _won't_ miss characters, as long as your program's
critical regions where interrupts are turned off are sufficiently short,
and your interrupt handler is also short and quick.

Kris Bruland.

-- 
Kriston M. Bruland          |    . .         . .      . . .      .       . .
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8541751@nessie.cc.wwu.edu   |    .             .         .     .   .     .