On Mon, Apr 15, 2002 at 01:53:47PM -0700, Mike O'Brien wrote: > > The 11/40 had four (4) single-operand floating-point instructions > (FADD, FSUB, FMUL and FDIV) which (I believe) used the regular > registers in pairs. Didn't they work on the top 2 items of the stack? Or has my memory failed me again :-) David -- David Laight: david@l8s.co.uk