RT11 sysgen and disk partitions

[Megan]

>I always though that the maximum was about 32 devices,
>so I guess I will need to check.

... in Bstrap.mac:

90$:    CMP     R3,#<HNAMES+<40.*4>> ;More than 40. handlers here?
        BHIS    110$            ;Yes, can't remember any more

>Also, although the system device is LOADed at boot time,
>the SHOW  DEVICE command shows "Resident" as the actual
>status - which I agree means that it can't be UNLOADed.

Yes, 'Resident' is determined when the handler base address
is above the base of RMON.

>Finally, as discussed elsewhere, even normal "properly
>written programs" can't .Fetch a device driver if it is
>being run as a "system" or "foreground" job.

I'll have to check on this... my RTEFTP program may be
using tricks to accomplish it.  I know it does it when
running virtual or under VBGEXE (with the /BUFF:n option
for SRUN or FRUN)

                                        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 |
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