 - Convert the function definition to declare its arguments    in the ANSI-C format.  - Change the code a bit to hopefully save some cycles.    I.e. (simplified) change
 - Convert the function definition to declare its arguments
   in the ANSI-C format.
 - Change the code a bit to hopefully save some cycles.
   I.e. (simplified) change

     a = b + 1;
     while (--b & 0x7)
	/* ... */
   to
     a = b;
     for (; b & 0x7; b--)
	/* ... */
   and
     while (--a >= 0)
	/* ... */
   to
     for (; a > 0; a--)
	/* ... */
 - Equip two function arguments of swab() with the 'restrict'
   type qualifier in form of the '__restrict' macro.  This is
   specified by POSIX.1-2001.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase