how to use both c64x+ and c67x+ instruction in one project with 6748?

twicave Feng

Intellectual 850 points

I'm using CCS3.3. Is there some support library used to "active" this function?

after all, 6748 support both c67x+ float instructions and c64x+ fixed instructions.

over 14 years ago

0 twicave Feng over 14 years ago

Intellectual 850 points

Should I update my compiler? It seemed belong to the compiler's responsibility.

0 dabuan over 14 years ago in reply to twicave Feng

TI__Genius 14545 points

Can you expand on your question some more?

I'm not sure if you're trying to use legacy programs, or if you are trying to build a new program from scratch. If it's the later, the Instructions are available in the C674x DSP CPU and Instruction Set User's Guide available from the C6748 Product Page on TI.com

0 Daniel Allred over 14 years ago in reply to twicave Feng

TI__Genius 17355 points

twicave Feng said:

Should I update my compiler? It seemed belong to the compiler's responsibility.

A compiler revision that supports the 6740 architecture will allow you to use C67x+ and C64x+ instructions in the same code base. To indicate that you are compiling/assembling for this architecture requires using the -mv6740 option. I believe 6.1.10 and later support this, so if you are using anything older than this (such as the default C6000 compiler that comes with CCSv3), then you should definitely download a new version from the Codegen tool download page.

Regards, Daniel

0 twicave Feng over 14 years ago in reply to Daniel Allred

Intellectual 850 points

It works!

A recommendation for people who want download new compile tools:

After installed cgt(codegen toos),you should open CCS's component manager, open build tools,

toggle 6200, 6400, 6700's compiler version to newer one

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how to use both c64x+ and c67x+ instruction in one project with 6748?