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how can I return a value within embedded assembler?

Note: This was originally posted on 8th May 2009 at http://forums.arm.com

Hi,

does anybody know how I can write an embedded ASM function that returns the actual PSR value? I prefered to go on like this:

int getCpsr( void )
{
int currentCPSR;
MRS currentCPSR, CPSR
return currentCPSR;
}

how can I return a value within embedded assembler?

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zart zurt over 12 years ago

Note: This was originally posted on 8th May 2009 at http://forums.arm.com

Normally ARM and Thumb-2 instruction sets are the same except the binary form. And in the link I provided , it said that CPSR named register was supported for all processors. Sorry , it did not work that way...
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zart zurt over 12 years ago

Note: This was originally posted on 8th May 2009 at http://forums.arm.com

Normally ARM and Thumb-2 instruction sets are the same except the binary form. And in the link I provided , it said that CPSR named register was supported for all processors. Sorry , it did not work that way...
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