Hi,
On Feb 15, 2012, at 11:30 PM, subin gangadharan wrote:
> Hi ,
>
> I am trying to understand how system call is implmented in linux for
> arm.And I am not that familiar with arm assembly.
>
> Could any body please help me to understand what exactly this ^ does
> in this instruction stmdb r8,{sp,lr}^
>
> --
> With Regards
> Subin Gangadharan
>
> I am not afraid and I am also not afraid of being afraid.
>
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Example:
LDFMD sp!, {r0-r12, pc}^
- The ^ qualifier specifies that the CPSR is restored from the SPSR.
It must be used only from a privileged mode.
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