Help needed w/Mc68881

[Robert Zeff]

  Hi.  I have a Tektronix 4301 (BSD4.2) with GreenHill C compiler
and need to put the 68881 coprocessor into extended precision mode.
  The function "setfp ()" is suppossed to be able to change the 68881
to single (24 bit), double (53 bit) or extended (64 bit) precision
mode.  I can set it to single or double, but setting it to extended
still gives me 53 bit precision.  Anyone have a clue?
thanks,


BTW, anyone know the command set for a HP SS80 drive?
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