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From: Rune Torgersen <runet@innovsys.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] printf
Date: Fri, 11 Jul 2003 09:21:55 -0500	[thread overview]
Message-ID: <9F5558593173D21190EA0008C7B176987313E4@innsys1> (raw)

Hi

Does anybody know how to get printf (for 82xx CPU) to priont floting point
numbers?
I have tried %f %e and %g but all it prints on the console is f e and g...

I am using a workaround for now, by printing the number as two integers...

	float_num = some_float_operation;
	i = (int)float_num;
	r = ((int)float_num - i) * 100;

	printf("%d.%d", i, r);

But this is kind of bothersome for the long run.

I need this to print out the measured voltages in the system. (done by a
supervisor circuit).
And yes... The 8266 CPU (actually all the 82xx) has a working FPU unit.


Rune Torgersen
System Developer
Innovative Systems LLC
1000 Innovative Drive
Mitchell, SD 57301
Ph: 605-995-6120
www.innovsys.com

             reply	other threads:[~2003-07-11 14:21 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-11 14:21 Rune Torgersen [this message]
2003-07-11 14:31 ` [U-Boot-Users] printf Wolfgang Denk

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