> So 64 bit mode is like a Dataspace The immediate problem addressed by amode 64 was to move data above the bar. Hence the current similarity to dataspaces. However, the architecture supports 64 bit execution; the problem is that the operating system doesn't. As Chris Craddock pointed out, many of the control blocks used to manage execution (and recovery) need to be changed to support execution above the bar. It's still a work in progress.
Bob Shannon Rocket Software ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
