C/C++ Compiler (cl.hlp) (Table of Contents; Topic list)
80x87 Calls: Details
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─────C/C++ Compiler─────────────────────────────────────────────────────────
 
     Syntax:  /FPc87
 
     This option generates function calls to routines in the 80x87
     library (mLIBC7.LIB) in order to perform the corresponding 80x87
     instructions.
 
     You must have an 80x87 coprocessor installed to run programs
     compiled with the /FPc87 option and linked with an 80x87 library.
     Otherwise, the program fails and an error message is displayed.
 
     If an 80x87 coprocessor is unavailable, you can specify an
     emulator library (mLIBCE.LIB) or the appropriate alternate math
     library (mLIBCA.LIB) at link time.
 
     NOTES:
 
        ■ Certain optimizations are not performed when /FPc87 is used.
          This can reduce the efficiency of your code.
 
        ■ Neither the Fast Compile option (/f) nor the p-code option
          (/Oq) supports the /FPc87 option.
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