On Mon, Feb 11, 2019 at 6:03 PM Noel Chiappa via cctalk <cctalk@classiccmp.org> wrote: > > > From: Jon Elson > > > Likely some disk controllers did NOT SUPPORT crossing 64K boundaries! > > No; the RK11 spec says "[the two extended memory bits] make up a two-bit > counter that increments each time the RKBA overflows". > > The actual error turns out to be slightly different to my guess; there's > a spurious overflow from the low 16-bit register to these bits at 0170000.
Maybe a problem with E29 or E34 on the M795 module? -tony
