VAXcompatible
VAXcompatible is a term used to describe hardware or software that provides compatibility with the VAX architecture and binary interface, enabling programs compiled for VAX systems to run on other platforms. It covers native VAX implementations that execute the VAX instruction set as well as software-based solutions that emulate or translate VAX instructions and system calls so that VAX binaries execute correctly under a VAX-compatible operating environment such as VMS or Ultrix.
Historically, Digital Equipment Corporation introduced the VAX line in the late 1970s, and a range of vendors
Technical considerations include the 32-bit VAX instruction set, diverse addressing modes, and features such as register
Impact and usage of VAXcompatibility have been important for preserving legacy software and research ecosystems. Emulation