[A83] Re: A call to those who think they know more than me.

To: assembly-83@lists.ticalc.org
Subject: [A83] Re: A call to those who think they know more than me.
From: Linus Akesson <lairfight@softhome.net>
Date: Thu, 12 Jul 2001 15:49:13 +0200 (CEST)
In-Reply-To: <GNEPLIJKKPFKKJNDKHEKIECLCCAA.kirk.meyer@colorado.edu>
Reply-To: assembly-83@lists.ticalc.org


In accordance with the prophecy, Kirk Meyer uttered:

> _inline fixedpoint_t fpm_Ceil(fixedpoint_t fxp) {
> 	if (fxp <= 0) return fxp & 0xffff0000;
> 	else return ((fxp - 1) | 0x0000ffff) + 1;
> }

May I suggest the following code to round positive numbers upwards:
return (fxp + 0xffff) & ~0xffff;

The remaining cases are left as an exercise, yadda yadda yadda.

Linus
--------------------------------------------- http://www.df.lth.se/~lft ---
haiku's inventor
must have had seven fingers
on his middle hand

References:

[A83] Re: A call to those who think they know more than me.

From: "Kirk Meyer" <kirk.meyer@colorado.edu>