Floating-point architectures (continued)
Some vendors do not default to correct nonstop ANSI/IEEE 754 behavior unless asked by additional compilation switches (e.g., Compaq/DEC Fortran -fpe3 or -fpe4 , and C/C++ -ieee )
CDC 6600, HP PA-RISC 1.0, and Sun SPARC v7 lack integer multiply and divide