I am playing around with the DIAGNOSE x'08' (Virtual console) instruction in z/OS. The instruction is described in the z/VM CP Programming Services manual where it says 'Command response. This address must be real to your virtual machine. The buffer can cross page boundaries.'. As one supplies the real starting address and a length, I assume that those pages have to be contiguous, but I cannot find how to do that. I tried to allocate 4k+ storage and check the real addresses and they certainly were not contiguous. Any idea?
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