topic Re: VLES with CodeWarrior C language in Classic/Legacy CodeWarrior

VLES with CodeWarrior C language

didib — Mon, 26 Mar 2012 17:50:27 GMT

Hi all.

I want to use VLES in order to improve my application performance.

Can i do it with C language (not asm)?

Can i use some intrinsics that wrap the VLES instructions?

Actually, i want to copy the first element, forth, 7, 10 from a source buffer to another bufffer and then to cpoy the second,5,8 elements from the source buffer to another bufffer. I want to abstain from loop asmuch as possible, tjen i thought on VLES and intrinsics.

Thanks a lot

Re: VLES with CodeWarrior C language

CrasyCat — Mon, 26 Mar 2012 18:46:23 GMT

Hello

- Which CPU are you targeting (HC08, HC12, Coldfire, ..)
- Which version of CodeWarrior are you using?

It is difficult to answer such a question when we get no idea what you are talking about.

CrasyCat

Re: VLES with CodeWarrior C language

didib — Wed, 28 Mar 2012 13:18:21 GMT

I am using the 8157 board - sc3580.

CW version 10.2.1

Thanks

Re: VLES with CodeWarrior C language

J2MEJediMaster — Wed, 28 Mar 2012 18:44:29 GMT

The StarCore C compiler automatically generates VLES for you. You can use the intrinsics functions to optimize the code to a degree. The StarCore application AN3391 explains how to do this for a complex FIT algorithm, but you need to sign an non-disclosure agreement to see it.

---Tom