Adam Sampson's s370 bookmarkshttps://bookmarks.offog.org/ats/s370Adam Sampson2014-07-26T14:38:48ZMVS/380 - 31-bit MVS - 25 years in the makinghttps://bookmarks.offog.org/edit?url=http%3A%2F%2Fmvs380.sourceforge.net%2F2014-07-26T14:38:48ZThe last public domain version of the MVS operating system only supported a 24-bit address space, which is a pain if you want to run modern software. This is a novel solution using Hercules: they've invented a new backwards-compatible 31-bit architecture ("S/380") which the older OS can easily be ported to! Very neat.