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From: terra AT diku DOT dk (Morten Welinder)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: IN/OUT-question
Date: 23 Jun 1995 14:14:59 GMT
Organization: Department of Computer Science, U of Copenhagen
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jscharrl AT ba-stuttgart DOT de (Jochen Scharrlach) writes:

>inportb (...)
>{
>  asm ("inb %1, %0"
>       : ......);
>}

>Now I heard that it is essential to *wait* a bit after starting an
>in/out operation - is this true? Is the function above correct? (of
>course the above function is not complete)


Waiting or not waiting depends on the device to which you're talking.
I don't know a device that requires more waiting than the return
from the function above will supply.

Morten