From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <1a12c9efb00463f70c0c59febf6600b8@hamnavoe.com>
To: 9fans@cse.psu.edu
From: Richard Miller <9fans@hamnavoe.com>
Date: Mon, 21 May 2007 19:23:11 +0100
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Subject: [9fans] Re: debugging help asked for
Topicbox-Message-UUID: 6ccd1f30-ead2-11e9-9d60-3106f5b1d025

I said:

> Possibly gcc/linux reacts differently to division by zero?

In this particular case, you can get the same result as
gcc/linux by doing these two things:

- at the beginning of main() in PATHd8.c, add this line
	setfcr(getfcr()&~(FPINVAL|FPZDIV));

- in /sys/src/libc/port/log.c function log(), replace this:

 	if(arg <= 0)
		return NaN();

  with this:

	if(arg <= 0 || isNaN(arg))
		return NaN();

-- Richard