3 May
2015
3 May
'15
1:24 p.m.
* On Sun, May 03, 2015 at 12:00:51AM -0700, Glen Slick <glen.slick at gmail.com>
wrote:
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.
I disassembled the binary image with z80dasm, but my Z80-fu is very
weak. If it were a 6502 or a WE32100 I'd have it figured out by now!
Nevertheless, I'll keep at it and see if I can get anything out of it.
-Seth