Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!cbmvax!valentin
From: valentin@cbmvax.commodore.com (Valentin Pepelea)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Amiga semaphores (HELP!)
Message-ID: <14574@cbmvax.commodore.com>
Date: 21 Sep 90 02:22:16 GMT
References: <2290004@hp-ptp.HP.COM>
Reply-To: valentin@cbmvax.commodore.com (Valentin Pepelea)
Organization: Commodore, West Chester, PA
Lines: 20

In article <2290004@hp-ptp.HP.COM> jimg@hp-ptp.HP.COM (Jim_Garrison) writes:
>
> I've trying to use Amiga Semaphores, as a mechanism to let only one program
> access a particular resource at a time.  I'm using the Amiga Programmers
> Reference by Eugene Mortimer, as a reference for using the semaphores.  I
> seem to recall that there is either some problem with the description of
> semaphores in this book, or there are problems with the way Amiga semaphores
> work.  I'm using an A2500 with Amigados 1.3 and Lattice 5.05 C compiler.

The problem is with the semaphore calls. First of all, the AddSemaphore()
function expect a parameter in the wrong register. Take a look ROM Kernel
Reference Manual: Includes&Autodocs for a work-around. The blue-greenish
manual.

Valentin
-- 
The Goddess of democracy? "The tyrants     Name:    Valentin Pepelea
may distroy a statue,  but they cannot     Phone:   (215) 431-9327
kill a god."                               UseNet:  cbmvax!valentin@uunet.uu.net
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