/ARCHITECTURE=options
     /ARCHITECTURE=GENERIC (D)

 Determines the Intel processor instruction set to be used by the
 compiler.  The /ARCHITECTURE qualifier uses the same keyword options
 (keywords) as the /OPTIMIZE=TUNE qualifier.

 Where the /OPTIMIZE=TUNE qualifier is primarily used by certain
 higher-level optimizations for instruction scheduling purposes,
 the /ARCHITECTURE qualifier determines the type of code instructions
 generated for the program unit being compiled.

 OpenVMS Version 7.1 and subsequent releases provide an operating
 system kernel that includes an instruction emulator.  This emulator
 allows new instructions, not implemented on the host processor chip,
 to execute and produce correct results.  Applications using emulated
 instructions will run correctly, but may incur significant software
 emulation overhead at runtime.

 The following /ARCHITECTURE option is supported:

     ITANIUM2 Generates code for the Intel Itanium 2 processor.