Abstract for z/XC Principles of Operation

IBM® z/Architecture® Extended Configuration (z/XC) virtual-machine architecture, as provided by z/VM®, is described in detail. z/XC virtual machine operation is described as it appears to an assembly language programmer. Because z/XC is based on and is closely related to z/Architecture, z/XC is defined by indicating the ways in which it is the same as, or different from, z/Architecture.

The following elements of the z/XC architecture are covered:
  • Overall organization
  • The structure of storage and address spaces
  • Control facilities
  • Program execution
  • Interruptions
  • The operation of instructions
  • Input/output facilities