On Sun, 24 Oct 2021 17:30:58 +0000, Seymour J Metz wrote: >Currently no foreseeable z hardware or software supports full 64-bit >addresses. Has there been any discussion of BXHG and BXLEG for addresses >greater than 8 EiB? > I believe the BX* are RS instructions so they should properly generate 64-bit addresses from D2(B2) in AMODE 64. Is your concern not with addresses but with the lack of Grande R1 and R3 operands?
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