25 Nov
2006
25 Nov
'06
4:24 p.m.
I think you need the -yb or -yc to support the FP chip. The J11 chip rev
can also be a concern.
The FP chip should be under $300, but I don't have the part number to check.
Paul
On 11/24/06, Gordon JC Pearce <gordon at gjcp.net> wrote:
The thought occurred to me that it might be nice to have the
floating-point option in my PDP-11/73. Since I haven't got one, and
don't fancy paying the $500 or so that some online sellers seem to be
asking (do they really expect to sell *any*, never mind at that price?),
I was wondering how easy it would be to implement in an FPGA as was
discussed at length earlier in the week.
Feasible, or a complete waste of time? Presumably I'd need software
written to make use of the floating-point hardware anyway...
Gordon.