/e        Generates floating-point emulator instructions

          Use this option if your program contains a floating-point
          emulation library that mimics the functions of the 80x87 numeric
          coprocessor.

          Normally, you would only use this option if your assembler
          module is part of a program written in a high-level language
          that uses a floating-point emulation library. (Borland's line of
          C++ compilers, Borland Pascal, Turbo Basic, and Turbo Prolog all
          support floating-point emulation.) You can't just link an
          assembler program with the emulation library, since the library
          expects to have been initialized by the compiler's startup code.

          The /e command-line option has the same effect as using the EMUL
          directive at the start of your source file, and is also the same
          as using the /jEMUL command-line option.