TMS570LS3137: TMS570LS3137 : armv7-r assembly instructions

Hi David,

Thanks for your response, but i couldn't find any details about SPSR_CXSF.

Thanks,

Kalyan

Thanks for your response.

I did a experiment by writing 0xFFFFFFFF to SPSR and read is back, when i read back i got 0xFE0FFFFF value. when i referred arm reference manual and got to know that J and DNM fields were not able to write the desired value.Below is the note related to J field of CPSR:

The J bit in the CPSR returns 0 when read.
Note: You cannot use an MSR to change the J bit in the CPSR.

Is there any other way i could initialize SPSR with Zero?

Thanks,
Kalyan

Kalyan,

I believe you are right about that. I don't know the answer, can you try to submit a ticket in ARM development community?

For J bit, it returns 0 when you read it back but my understanding is it doesn't mean 0 is the real value it has.

What is your goal to force SPSR with zero? What is the impact to you if SPSR is not zero?

best regards,

David Zhou