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From:	jscharrl AT ba-stuttgart DOT de (Jochen Scharrlach)
Newsgroups:	comp.os.msdos.djgpp
Subject:	IN/OUT-question
Date:	23 Jun 1995 11:30:25 GMT
Organization:	Berufsakademie Stuttgart
Lines:	25
Reply-To:	jscharrl AT ba-stuttgart DOT de
Nntp-Posting-Host:	grey.t-informatik.ba-stuttgart.de
To:	djgpp AT sun DOT soe DOT clarkson DOT edu
Dj-Gateway:	from newsgroup comp.os.msdos.djgpp

Hi!

I have some trouble with the new implementation of inportb,... in V2,
but I am not sure if it is really a bug. In V2 all in/out-commands are
implemented as inline assembler functions, which only pass the
parameter to the in/out assembler command, like:

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)

Thanks in advance,
Jochen

--
                      ------------------------------------
                      EMail:   jscharrl AT ba-stuttgart DOT de
                         or:   acorn1 AT ftp DOT uni-stuttgart DOT de
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