From: <firstname.lastname@example.org> However, I can't totally accept your second point for a couple reasons which I'd gladly abandon if you can elaborate on what you wrote. First, the 'tagged' memory is a hardware fact; the tag bits physically exist. They might be manipulated by software, I can't ultimately prove or disprove that though I don't doubt it nor would I argue that you can't do it; but 'tags active' is a PPC processor mode and that mode affects instruction execution related to those bits. ===> true enough, but the pointer protection is pure software. My (small) point was just that the much hyped AS/400 security is a software function (and as such can be easily circumvented). The old CISC system was much safer in this respect as the protection was much closer to the hardware.
This mailing list archive is Copyright 1997-2015 by MIDRANGE dot COM and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available here. If you have questions about this, please contact