On Mon, Feb 8, 2021 at 10:22 PM Fritz Mueller via
cctalk
<cctalk at classiccmp.org> wrote:
On nice thing about this controller is that it
supports "Read/Write All" mode, which
lets you read or write the raw bitstream including block headers. This can be useful
for disk recovery if you have a corrupted block header, or for reading/writing
"foreign"
disks (within limits). This is controlled by bit 9 in the CSR, which is unimplemented
on
the later controllers.
Interesting. Did not know that. I don't know that
I've ever had a
corrupt disk that I needed to read, but it's good to know that feature
exists.
-ethan