A few notes about the FASTCALL convention (Watcom C++, Borland C++, M$C++) :

 - each compiler has it's own method for implementing this new avenue:

   Borland : insert '__fastcall' in front of functions.

   Watcom : '/3r' option

   M$C : '/Gr' option

 - there is no standard on which regs to use, each compiler uses it's own
   set of registers for calling functions.  Watcom is configurable thru
   the #pragma option but the others are not.