I once got a
"TU58i" Monitor-program in an EPROM that replaces the
original firmware of a TU58, and then should provide the ability to
(re)format a TU58 or DC100 cartridge in a normal TU58 drive. Anybody
ever heard of this?
Conventional wisdom holds that it's not possible to format TU58
cartridges, but I've long suspected that DEC must have had alternate
firmware for in-house use for this purpose.
I once had such an eprom myself... I may still have it somewhere, but
we never got a chance to use it.
One of the protos I have from way back when is a suitcase pdp-11
with TU58s as the system device. Since it had originally been
designed for use by Field Service, it ran a different set of
software than any of the traditional OSes, and so used an entirely
different EPROM on the TU58 interface board. In order to boot RT,
I had to remove that old EPROM (which I believe I saved, somewhere)
and installed one from a regular TU58 board...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | email: gentry at
zk3.dec.com (work) |
| Unix Support Engineering Group | mbg at
world.std.com (home) |
| Hewlett Packard | (s/ at /@/) |
| 110 Spitbrook Rd. ZK03-2/T43 | URL:
http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 (DEC '77-'98) | required." - mbg KB1FCA |
+--------------------------------+-------------------------------------+