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Using REV16 in C Code

Robert S

Hi guys,

First of all, I'm using a LM3S6950 Arm Cortex M3 microcontroller with Keil MDK 3.70. I'm programming in C, Thumb Mode.

For converting low endianess to big endianess I want to use the rev and rev16 instruction.

32 Bit swaps can be done with the build in __rev() inline C function (http://www.keil.com/support/man/docs/armccref/armccref_cjaeegce.htm)

How can I do this with the 16 bit instruction since inline assembler isn't supported in thumb mode?

Thanks for your replies
br Robert

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