access registers in powerpc

["Kamal R Prasad" <kamalrp%networkprograms.com@localhost>]

hello,

 I want to access the link register (r1) in powerpc. What would be the 
instruction and how does one get the register contents into a C variable? I 
want to write a C routine that reads through the stack frame (upwards).
 If there is sample code available -pl. let me know.

thanks
-kamal


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