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From: turner@imagen.UUCP (D'arc Angel)
Newsgroups: net.micro.atari16
Subject: bug in megamax C
Message-ID: <609@imagen.UUCP>
Date: Fri, 10-Oct-86 12:59:39 EDT
Article-I.D.: imagen.609
Posted: Fri Oct 10 12:59:39 1986
Date-Received: Sun, 12-Oct-86 13:40:36 EDT
Distribution: net
Organization: The Houses of the Holy
Lines: 41

~~~~~~~~~~~~~~~\ lineater, \~~~~~~~~~~~~~~~~~~~~~

here's a cute bug in megamax C:

int c;

	while((c = getchar()) != EOF) {
.
.
.
	}

works fine but:

unsigned char c;

	while((c = getchar()) != EOF) {
.
.
.
	}

loops infinately, the problem is that megamax generates the
following code:

	AND	#0xff,D0	;D0 has the result of getchar
	CMP	#-1,D0		;ooppsss should be CMP.B

ah well
-- 
----
		These are days for the locust to eat
					- Winston Churchill

Name:	James M. Turner
Mail:	Imagen Corp. 2650 San Tomas Expressway, P.O. Box 58101
        Santa Clara, CA 95052-8101
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