• Join
  • Sign In with my.TI Login
Texas Instruments
  • Products
  • Applications
  • Tools & Software
  • Support & Community
  • Sample & Buy
  • About TI
Sample & Purchase Cart Sample & Purchase Cart
  • Search
  • Advanced
TI E2E™ Community
  • Support Forums
  • Blogs
  • Groups
  • Videos
  • 简体中文
  • More ...
TI Home » TI E2E Community » Support Forums » Digital Signal Processors (DSP) » C6000 Single Core DSP » C67x Single Core DSP Forum » Does multplication cost more than addition?
Share
C6000 Single Core DSP
  • Forums
  • Announcements
Options
  • Subscribe via RSS

Forums

Does multplication cost more than addition?

This question is not answered
Robert W
Posted by Robert W
on May 12 2012 13:19 PM
Genius3715 points

Hi,

I am implementing an algorithm. The following reference (below dot  line) is about the similar algorithm using TI 6201. What it said seems multiplier costs more than addition. I have some programming in C for TI 6713. I remember that TI DSP multiplication can be done in one cycle. It needs more instruction fatch? How do you think about that? Thanks.

 

..................

A  so called Q-format representation consisting of 16

bits for both integer and fractional parts is employed

for the fixed point implementation. Overflow is

avoided via  clipping. Reduced complexity is achieved

by avoiding division or multiplication operation even

for the lookups. Interval size is specified as the power

of two to replace multiplications with shift operations.

6211
Report Abuse
  • Reply
You have posted to a forum that requires a moderator to approve posts before they are publicly available.
All Replies
  • RandyP
    Posted by RandyP
    on May 12 2012 18:48 PM
    Guru59970 points

    Robert,

    The context is confusing here, since this was originally posted in the C64x Forum, the question is about the C6713, the Tag is for the 6211, and you reference some unknown document about the C6201.

    If you have some programming in C for the C6713, please compile it and run it and see if the performance is what you require.

    I am not sure what else to discuss here. If you have more specific questions, please re-state your questions for the processor of choice and give us document references if you are asking what we mean in some TI document.

    Regards,
    RandyP

    Search for answers, Ask a question, click  Verify  when complete, Help others, Learn more.

    Report Abuse
    • Reply
    You have posted to a forum that requires a moderator to approve posts before they are publicly available.
TI E2E™ Community
  • Support Forums
  • Blogs
  • Videos
  • Groups
  • Site Support & Feedback
  • Settings
TI E2E™ Community Groups
  • TI University Program
  • Make the Switch
  • Microcontroller Projects
  • Motor Drive & Control
Other Communities
  • Deyisupport
  • Designsomething.org
  • beagleboard.org
  • TI on Element 14
  • TI on TechXchangeSM
Other Technical & Support Resources
  • WEBENCH® Design Center
  • Product Information Centers
  • Technical Documents
  • TI Design Network
  • TI Technical Articles
  • TI Training

All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.

Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms of Use of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms of Use of this site. TI, its suppliers and providers of content reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.

Follow Us Texas Instruments on Facebook Texas Instruments on Twitter Texas Instruments on LinkedIn Texas Instruments on Google+
TI Worldwide | Contact Us | my.TI Login | Site Map | Corporate Citizenship | mobile m.ti.com (Mobile Version)

TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs and
embedded processors, along with software, tools and the industry’s largest sales/support staff.

© Copyright 1995-2013 Texas Instruments Incorporated. All rights reserved.
Trademarks | Privacy Policy | Terms of Use