32 and 16 bit. The boot loaders used and FreeDos required incorporation of 16 bit support. Monumental pain.
We don't see 64 bit support being problematic though. Gary On 8/1/08 9:31 AM, "Adam Thornton" <[EMAIL PROTECTED]> wrote: > Does z/VOS do x86_64 or just 32-bit x86? Actually, can you list which > x86 extensions are included in it?