Implementing a mainframe architecture in a 9370 processor

This paper develops a high level view of the central electronics complex in the 9373 and 9375 systems, showing how the hardware and microcode elements combine to create a central processor as defined by the System/370 architecture. Within the context of this discussion, the logical subsystems described here will be defined as the working base architecture. The hardware implementation of the central processor will be examined in detail, both in terms of hardware subsystems, and as resources to be used by the various microprograms to provide the correct System/370 interface and function.