On Wed, 1 Dec 2010 06:38:58 -0500, Micheal Butz wrote: >So 64 bit mode is like a Dataspace
No, it isn't. A data space requires that you run in AR mode (or secondary space mode). Using 64-bit mode allows you to access memory above 2GB within the same address space. It increases the available addresses by a factor of about 8 billion by using 64 address bits rather than 31. -- Tom Marchant ---------------------------------------------------------------------- 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
