TMS320C28x C/C++ Compiler Intrinsics

manjunath tapasi

Other Parts Discussed in Thread: TMS320F28335

Hi all,

I am using TMS320F28335 for development.

Whenever i am using Uint8 its being stored in 16 bits,

Regarding this i went thro' "TMS320C28x C/C++ Compiler Intrinsics" pdf and tried to use intrinsic int __mov_byte( int *src, unsigned int n );

But i didnt get it well,can anyone explain it thro' some example.

Thanks,

Manju

over 13 years ago

0 George Mock over 13 years ago

TI__Guru**** 253380 points

manjunath tapasi said:
Regarding this i went thro' "TMS320C28x C/C++ Compiler Intrinsics" pdf

I'm not sure which document you mean.

I think this wiki article will help.

Thanks and regards,

-George

0 manjunath tapasi over 13 years ago in reply to George Mock

Intellectual 450 points

Hi George,

From this wiki only i got that document,by referring to following question from wiki:

Q: If char is 16 bits, how can I access 8-bit values efficiently?

To access data in increments of 8 bits, use the __byte() and __mov_byte() intrinsics described in TMS320C28x Optimizing C/C++ Compiler User's Guide (spru514).

I want to know how to use __mov_byte() in code.

Thanks,

manju

0 George Mock over 13 years ago in reply to manjunath tapasi

TI__Guru**** 253380 points

This wiki article has more details, including some good examples. Use __byte(), and not __mov_byte(). The end of the article explains why.

Thanks and regards,

-George

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TMS320C28x C/C++ Compiler Intrinsics

Q: If char is 16 bits, how can I access 8-bit values efficiently?