14 Mar
2005
14 Mar
'05
8:59 a.m.
Megan, if you are reading this, might it be possible to
expand the number
of units to 128 or even 256? I seem to see at least one bit that is not
being used and maybe even two bits.
Depends... where are you talking about getting the two bits?
I know that naming would be a problem - what about:
D00 -> D77:
for the 128 unit device drivers, then add 8 more
"hex" values to the last RAD50 character
D08: -> D0F:
...
D78: -> D7F:
for the 256 unit device drivers, then add 16 more
values to the last RAD50 character
D0G: -> D0V:
...
D7G: -> D7V:
uggh... I'd not want to see go this route.
Since all the device names are RAD50, numbering is not
really a problem.
By keeping the middle character as an octal value, the PNAME2 table
should still be happy.
You've got me on that, I would have to look at the code to see why
PNAME2 is an issue.
As for the number of disks... I find 64 unwieldy... I'd hate to have
to worry about 2 or 4 times that number on RT. I personally would
rather see RT be able to natively handle 32-bit blocks numbers before
it went this route...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL,ST| email: mbg at world.std.com |
| Member of Technical Staff | megan at savaje.com |
| SavaJe Technologies, Inc. | (s/ at /@/) |
| 100 Apollo Drive | URL: http://world.std.com/~mbg/ |
| Chelmsford, MA 01824 | "pdp-11 programmer - some assembler |
| (978) 256 6521 (DEC '77-'98) | required." - mbg KB1FCA |
+--------------------------------+-------------------------------------+