Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/5/84; site polyof.UUCP
Path: utzoo!watmath!clyde!burl!ulysses!gamma!epsilon!zeta!sabre!petrus!bellcore!decvax!mcnc!philabs!ron1!polyof!john
From: john@polyof.UUCP ( John Buck )
Newsgroups: net.sources.games
Subject: Re: pm help needed
Message-ID: <187@polyof.UUCP>
Date: Sat, 4-Jan-86 20:32:47 EST
Article-I.D.: polyof.187
Posted: Sat Jan  4 20:32:47 1986
Date-Received: Tue, 7-Jan-86 04:06:52 EST
References: <228@sdcc7.UUCP>
Organization: Polytechnic Inst. of NY, Farmingdale
Lines: 32

> I can't seem to get anything to print out to the screen when running
> the pac-man like `pm'.  However, if I redirect output, something is
> happening.  I am on a Pyramid OSx.  Any ideas?
> 

Common problem:  declare the variable that is written by the 'write()' call
to be type 'char' NOT 'int'  on 68000/gould type machines (which arent
backwards like the vax) when you do:
	int c;
	c = 'A';
	write(1, &c, 1);

	You DO NOT get an 'A', you get a '\0' (NULL character)
	On a vax it works due to its peculiar byte ordering.
	Anyway, the fix it make a new var (or change the declaration
	of 'c'.)
	int c;
	char ctmp;
	c = 'A';
	ctmp = c;
	write(1, &ctmp, 1);
	Will work.
	Pm has this bug.
	The reason it only happens on tty's is that the buffering is
	single char for ttys, line or block buffered for other things,
	like redirection and/or pipes.

John Buck
Polytechnic Inst. of NY
Route 110
Farmingdale, NY 11735
decvax!mcnc!{philabs!ron1,rti-sel}!polyof!john