Date   : Sat, 30 May 1981 (Satu:00rday) 2032-EDT
From   : PLATTS@WHARTON-10 (Steve Platt)
Subject: DMA address question

  ...while we're on the topic of DMA addresses, has anyone a good way
of getting the OLD dma address?  I've written some coroutines which of
necessity must be cotransparent, and both do disk IO.
   -Steve