FPTRAP(III) 11/18/73 FPTRAP(III)





FPTRAP(III)                 11/18/73                  FPTRAP(III)







NAME

     fptrap - floating point interpreter



SYNOPSIS

     sys     signal; 4; fptrap



DESCRIPTION

     Fptrap is a simulator of the  11/45  FP11-B  floating  point

     unit.   It  works by intercepting illegal instruction faults

     and examining the offending  operation  codes  for  possible

     floating point.



FILES

     found in /lib/libu.a; a fake version is in /lib/liba.a



DIAGNOSTICS

     A break point trap is given when a real illegal  instruction

     trap occurs.



SEE ALSO

     signal(II)



BUGS

     Rounding mode is not interpreted.  Its slow.
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