WTD -- AMD Am95C60 datasheet + register map

Hi guys, Does anyone have a full datasheet for the AMD Am95C60 graphics controller LSI? (also known as the Quad Pixel Dataflow Manager, or QPDM) I'm trying to reverse engineer the firmware in a piece of test-and-measurement gear, and the most I've been able to find for this chip is an abridged preliminary datasheet, which is pretty useless (lists the registers, but not what the various bits do, and contains no command list for the processor core). Basically, the box has some hidden features which I need to access to do a re-calibration. The manufacturer has binned all the documentation (quote from their tech guy: "Omigod, we last made those in, like, 1992... I can't believe those things are still around!") so no help there... :( Thanks, -- Phil. classiccmp at philpem.me.uk http://www.philpem.me.uk/