Don Russell wrote:
Well, good luck with your SIO instructions there. ;-)
I said BC mode.. Never said Pre-XA ! (all I said is that a z/Arch PSW is
no longer an EC mode PSW since the E bit in the PSW is 0 in z/Arch (lest
you want an early Specification Exception to occur))
(However, some virtualization solutions with 370ACCOM will allow SIOs !)
--Ivan
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