3 May
2015
3 May
'15
midnight
On Sat, May 2, 2015 at 10:41 PM, Seth Morabito <lists at loomcom.com> wrote:
A great idea, and yes I do. I've made dumps of the ROM (an Intel 2764)
here:
http://www.loomcom.com/retrocomputing/pdp11/tdl11/
The ROM is simply labelled "IAX 3.2". I ran `strings` on it and it
confirms there is some kind of utility intended for SCSI, and there
appears to be RL01 and RL02 support, so maybe it's more like the
TDL-12 than I thought it was!
From a very quick look at the TDL-11 firmware dump I
can see some
similarities to the TDL-12 firmware. In particular I can see some
binary data that would be DMA'd into the PDP-11 host memory that would
be executed as the host side communication channel to the TDL-11 on
board configuration utility.
I would have to spend more time disassembling the firmware to try to
figure out what triggers it to DMA that code into the PDP-11 host
memory and then start the execution of the configuration utility.