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.

Then David Laight wrote:
> Didn't they work on the top 2 items of the stack?
> Or has my memory failed me again :-)

	Yes, now that you mention it, very probably they did.