CCS C Software and Maintenance Offers
FAQFAQ   FAQForum Help   FAQOfficial CCS Support   SearchSearch  RegisterRegister 

ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

CCS does not monitor this forum on a regular basis.

Please do not post bug reports on this forum. Send them to CCS Technical Support
Fast 16x16 Multiply with 32-bit Result

 
Post new topic   Reply to topic    CCS Forum Index -> General CCS C Discussion
View previous topic :: View next topic  
Author Message
itp



Joined: 30 Jan 2004
Posts: 5

View user's profile Send private message

Fast 16x16 Multiply with 32-bit Result
PostPosted: Mon Jan 02, 2006 9:24 am     Reply with quote
Hi all,


Any idea for Faster 16x16 Multiply with 32-bit Result in C

Regards
Itp
ckielstra



Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

View user's profile Send private message

Re: Fast 16x16 Multiply with 32-bit Result
PostPosted: Tue Jan 03, 2006 5:35 am     Reply with quote
itp wrote:
Any idea for Faster 16x16 Multiply with 32-bit Result in C
It helps if you tell us what your current situation is and how much faster you need it to be.

If you are using a PIC16 processor it helps to upgrade to a (pin compatible) PIC18 processor because of the 8-bit hardware multiplier in the PIC18.

Can you use a faster clock crystal? Most PIC18's can be clocked up to 40MHz.

www.piclist.com is a great source for alternative routines.
Ttelmah
Guest
PostPosted: Tue Jan 03, 2006 10:36 am     Reply with quote
And of course, look at the _mul function....

Best Wishes
Display posts from previous:   
Post new topic   Reply to topic    CCS Forum Index -> General CCS C Discussion All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group