<snip> If the IBM debug tool uses it, can that interface be exposed to developers as an API for other applications to use (e.g., instruction trace utilities among others)? Hopefully as a callable service (assembler or MetalC would be fine) not requiring supervisor state or key zero? </snip>
My response is the normal one: open an RFE and make your case. In the absence of such a service, you may do what the debug tool does, which is to make the suitable updates according to what the architecture requires. And yes that would require being in key zero. If you are going to ask that the service be callable, please explain why in the RFE, since "callable" has connotations (including a linkage stub). As opposed to, for example, a macro or even a suitable sequence of assembler statements (which might end with BASR or BASSM). Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
