ASM execution check?

[Romaap]

Is it possible to make a code that checks if an ASM is executed?
so I can make a code that checks if a ASM is ececuted, if it is change registerN to a value. so the ASM uses the "wrong" value?

[spunit262]

C2 Codes. The don't check if it executed, but instead replace an instruction with a branch.

Use Links ASM helper Tool

li r#,new_value
Instruction replaced

This link is also very helpful
http://hpcf.nersc.gov/vendor_docs/ibm/asm/alangref02.htm#wq2793

[Romaap]

thx, will try it