Talk About Network

Google


Register and Login
Nick
Password
Register create new account Sign up is FREE and you can post replies, new topics, bookmark posts and more!
Recover lost password


Programming > Assembly x86 > Re: Any more gr...
Latest [ Topics | Posts ] Archive Post A New Topic Post a Reply
<< Topic < Post Post 6 of 39 Topic 4612 of 4729
Post > Topic >>

Re: Any more graceful way to saturate adds?

by Terence <spamtrap@[EMAIL PROTECTED] > Apr 11, 2008 at 11:28 PM

On Apr 12, 9:40 am, Terence  <spamt...@[EMAIL PROTECTED]
> wrote:
> I wouldn't do it that way.
> I would add the two supposedly unsigned 8-bit integers and test the 9
> th bit for 1, which if present, the addition has overflowed.
>
> Note that any non-overflow result of 255 is for your purposes
> indistinguishable from an overflow,
> So you just add, test 9th bit, jump around or load or OR 255h.

Make that last "255h" into 255 or else 0FFh! (Sigh!)
 




 39 Posts in Topic:
Any more graceful way to saturate adds?
Jim Leonard <spamtrap  2008-04-10 14:59:55 
Re: Any more graceful way to saturate adds?
(Dick Wesseling) <spam  2008-04-11 02:32:55 
Re: Any more graceful way to saturate adds?
Terje Mathisen <spamt  2008-04-11 09:41:42 
Re: Any more graceful way to saturate adds?
Jim Leonard <spamtrap  2008-04-11 11:05:19 
Re: Any more graceful way to saturate adds?
Terence <spamtrap@[EM  2008-04-11 16:40:10 
Re: Any more graceful way to saturate adds?
Terence <spamtrap@[EM  2008-04-11 23:28:22 
Re: Any more graceful way to saturate adds?
"Wolfgang Kern"  2008-04-12 12:51:54 
Re: Any more graceful way to saturate adds?
Robert Redelmeier <red  2008-04-12 19:29:18 
Re: Any more graceful way to saturate adds?
Richard Russell <spam  2008-04-12 13:52:03 
Re: Any more graceful way to saturate adds?
Terje Mathisen <spamt  2008-04-13 15:31:59 
Re: Any more graceful way to saturate adds?
Terence <spamtrap@[EM  2008-04-12 17:03:07 
Re: Any more graceful way to saturate adds?
"Rod Pemberton"  2008-04-12 23:06:56 
Re: Any more graceful way to saturate adds?
"Rod Pemberton"  2008-04-12 23:10:57 
Re: Any more graceful way to saturate adds?
Terje Mathisen <spamt  2008-04-13 15:00:06 
Re: Any more graceful way to saturate adds?
"Rod Pemberton"  2008-04-13 11:27:29 
Re: Any more graceful way to saturate adds?
"Alexei A. Frounze&q  2008-04-13 17:19:25 
Re: Any more graceful way to saturate adds?
"Rod Pemberton"  2008-04-14 02:41:38 
Re: Any more graceful way to saturate adds?
Jim Leonard <spamtrap  2008-04-14 06:58:12 
Re: Any more graceful way to saturate adds?
"Alexei A. Frounze&q  2008-04-14 03:39:12 
Re: Any more graceful way to saturate adds?
pete <spamtrap@[EMAIL   2008-04-15 05:11:19 
Re: Any more graceful way to saturate adds?
Jim Leonard <spamtrap  2008-04-15 07:30:34 
Re: Any more graceful way to saturate adds?
pete <spamtrap@[EMAIL   2008-04-17 17:05:43 
Re: Any more graceful way to saturate adds?
Terje Mathisen <spamt  2008-04-17 13:14:08 
Re: Any more graceful way to saturate adds?
Danjel McGougan <spam  2008-04-18 02:31:30 
Re: Any more graceful way to saturate adds?
Terje Mathisen <spamt  2008-04-18 11:21:01 
Re: Any more graceful way to saturate adds?
dave <spamtrap@[EMAIL   2008-04-18 13:57:11 
Re: Any more graceful way to saturate adds?
Jim Leonard <spamtrap  2008-04-21 07:23:39 
Re: Any more graceful way to saturate adds?
Jim Leonard <spamtrap  2008-04-21 07:33:56 
Re: Any more graceful way to saturate adds?
Esra Sdrawkcab <spamt  2008-04-21 20:07:15 
Re: Any more graceful way to saturate adds?
Terje Mathisen <spamt  2008-04-22 11:01:06 
Re: Any more graceful way to saturate adds?
Esra Sdrawkcab <spamt  2008-04-23 08:20:41 
Re: Any more graceful way to saturate adds?
"H. Peter Anvin"  2008-06-02 09:43:53 
Re: Any more graceful way to saturate adds?
Terje Mathisen <spamt  2008-06-02 19:53:52 
Re: Any more graceful way to saturate adds?
aku ankka <spamtrap@[  2008-04-22 00:38:05 
Re: Any more graceful way to saturate adds?
Terje Mathisen <spamt  2008-04-22 11:03:00 
Re: Any more graceful way to saturate adds?
aku ankka <spamtrap@[  2008-04-22 23:43:47 
Re: Any more graceful way to saturate adds?
Jim Leonard <spamtrap  2008-05-01 13:13:06 
Re: Any more graceful way to saturate adds?
Terje Mathisen <spamt  2008-05-02 09:11:22 
Re: Any more graceful way to saturate adds?
pete <spamtrap@[EMAIL   2008-05-02 04:38:05 

Post A Reply:
  Go here to Signup

AddThis Feed Button


About - Advertising - Contact - Frequently Asked Questions - Privacy Policy - Terms of Use - Signup

Contact
tan12V112 Fri Jul 25 15:18:00 CDT 2008.