Yokemate of Keyboards
Posts: 2793 from 2006/3/21
From: Northern Calif...
I'd guess m68k compatibility would suffer less from expanding addressing to 32-bit than it would do from expanding to 64-bit.
I never looked into it before, so I don't know the answer to this question, but why was the original AmigaOS 31-bit, instead of 32-bit, and was there any previous discussion by anyone within Commodore, or outside, such as peer review, that ever considered what it would take to make AmigaOS3.x 32-bit? Would such a modification break most/all of the legacy software, or cause it to require re-compiling? The 31-bit/32-bit discussion, as it relates to how the OS works, and what it would break is a little bit over my head.
I am guessing that AROS was designed from the beginning with either 32-bit, or 64-bit in mind, so they must have figured out how to fix the problem. Since neither MorphOS, or AmigaOS4.x chose to attempt to move to 32-bit, I can only assume it was for software compatibility purposes (edit: to retain binary compatibility).[ Edited by amigadave 05.03.2017 - 13:42 ]
MorphOS - The best Next Gen Amiga choice.