The NVAX and NVAX+ High-Performance VAX Microprocessor.

The NVAX and NVAX+ CPU chips are high- performance VAX microprocessors that use tech- niques traditionally associated with RISC micropro- cessor designs to dramatically improve VAX perfor- mance. The two chips provide an upgrade path for existing VAX systems and a migration path from VAX systems to the new Alpha AXP systems. The design evolved throughout the project as time- to-market, performance, and complexity trade-offs were made. Special design features address the is- sues of debug, maintenance, and analysis.