Forcing a Thumb address

[ERussell]

I am working with a k60 using CW10.2. I would like to force a label in an assembly file to be at a thumb address, i.e. with the LSB set, but have not been able to do this.  Can anyone tell me how to do this?

Thanks.

[konrada]

Whether you need to add one to your code address depends on what instruction you use to jump there (B/BL vs BX/BLX), so adding the one to the label is dangerous.

What are you trying to do? 

[ERussell]

I was attempting to implement the QK Scheduler  portion of the Quantum Leaps QP code. There is a warning, at least for the GNU C compiler, to insure that the address of an assembly label is a thumb address in the PendSV_Handler routine. As it turned out there was no problem and the function is working correctly with no intervention on my part, so I assummed that the fist responder was correct.

Thanks for responding.

[Nouchi · Accepted solution]

Hi,

Cortex M processors only support thumb and thumb-2 instructions.

 http://www.arm.com/products/processors/cortex-m/cortex-m4-processor.php