eption will be detected if the result exceeds the range limit of <A HREF="fpuchap2.htm#real10">REAL10</A> numbers, setting the related flag in the Status Word and the value of INFINITY will overwrite the content of ST(0).

<P>Examples of use:

<pre><B>fisub word_var</B>         ;subtract the <EM>word_var</EM> integer variable from ST(0)
<B>fisub dword ptr[esi+8]</B> ;subtract the DWORD pointed to by [ESI+8] from ST(0)</pre>

If an integer in one of the CPU registers, or an immediate integer value, needs to 