On 18 Sep 2008 09:38:04 -0700, [EMAIL PROTECTED] (John McKown) wrote: >Now, you must look at all the architecture dependant code, likely coded in >assembler, and rewrite it to be functionally compatable on the new >architecture. Or perhaps even rewrite parts of the code entirely if the >architectures are incompatable. As an example, most systems today are 32 >or 64 bit. But there were many 36 bit systems in the past. There are >likely a lot of assumptions in the low level code about how many bits are >in a "word" or a register. That can make a huge difference in the port.
Different systems use registers differently as well. It might be hard to optimize such ported code designed for an OS to that same OS on a different architecture. Are there additional issues with a multiple OS VM environment? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
