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 traps and decoding and executing the floating point operation codes. FILES In systems with real floating point, there is a fake routine in /lib/liba.a with this name; when simulation is desired, the real version should be put in liba.a DIAGNOSTICS A break point trap is given when a real illegal instruction trap occurs. SEE ALSO signal (II), cc (I) (`-f' option) BUGS Rounding mode is not interpreted. It's slow.