Error in setting 22 bit address for uda

[Mark Matlock]

Joerg,

   One of the things I’ve been trying to do with the QBone is set it at an alternative MSCP address so I could boot my normal MSCP disk but be able to make a backup to the QBone from where I can easily ftp the updated disk image to others.

   To do this I power up the system, then suppress the boot up of the PDP-11/83 until the QBone is fully booted up. Then I activate my QBone script file to enable the secondary MSCP controller putting it at 17772154 so it does interfere with the primary. Then I boot the PDP-11 which would hopefully have both MSCP controllers online. I couldn’t figure out why it didn’t work until I was able to capture the QBone dialog which quickly scrolls past during the script execution.

   The p addr 17772154 command is causing an error:

D>>>sd uda

Current device is "uda"

*** Test of device parameter interface and states.
     QBUS devices are clients to PDP-11 CPU acting asg DMR/IRQ Arbitrator
    (CPU active: running or HALTed executing microcode ODT).
    CPU is physical or emulated.
    Memory access as Bus Master with DMR/DMG/SACK handshake.
    Current device is "uda"
    QBUS controller base address = 17772150
    NO QBUS memory installed ... device test limited!

m i [<endaddr>]      Install (emulate) max QBUS memory, or up to including even <endaddr>
m f [word]           Fill QBUS memory (with 0 or other octal value)
m d                  Dump QBUS memory to disk
m ll <filename>      Load memory content from MACRO-11 listing file (boot loader)
m ll                 Reload last memory content from file "duboot.lst"
m lp <filename>      Load memory content from absolute papertape image
m lp                 Reload last memory content from file "duboot.lst"
ld                   List all defined devices
en <dev>             Enable a device
dis <dev>            Disable device
sd <dev>             Select "current device"
p <param> <val>      Set parameter value of current device
p <param>            Get parameter value of current device
p panel              Force parameter update from panel
p                    Show all parameter of current device
d <regname> <val>    Deposit octal value into named device register
e <regname>          Examine single device register (regno decimal)
e                    Examine all device registers
e <addr>             Examine octal QBUS address.
d <addr> <val>       Deposit octal val into QBUS address.
dbg c|s|f            Debug log: Clear, Show on console, dump to File.
                       (file = qunibone.log.csv)
init                 Pulse QBUS INIT
h <1|0>              Set/release QBUS HALT, like front panel toggle switch
pwr                  Simulate QBUS power cycle (DCOK/POK) like front panel RESTART
q                    Quit

D>>>p addr 17772154

Error : Number 4191340 exceeds bitwidth 18

D>>>p

Parameters of device uda:

Name             Short  Value     Unit  Access     Info

---------------  -----  --------  ----  ---------  ----------------------------------------------------------------------

name             name   uda             read only  Unique identifier of device

type             type   UDA50           writable   Type

enabled          en     0               read only  device installed and ready to use?

emulation_speed  es     1               writable   1 = original speed, > 1: faster

verbosity        v      3               writable   1 = fatal, 2 = error, 3 = warning, 4 = info, 5 = debug

base_addr        addr   17772150        writable   controller base address in IO page

slot             sl     20              writable   backplane slot #, interrupt priority within one level, 0 = next to CPU

intr_vector      iv     000             writable   interrupt vector address

intr_level       il     5               writable   interrupt bus request level: 4,5,6,7

22_bit_dma       dma22  1               writable   Enable 22-bit DMA

For testing purposes then I tried an 18 bit controller address, but it appears to map it to a non-I/O page address but it shows that my command syntax is ok.

D>>>p addr 772154

Name       Short  Value   Unit  Access    Info

---------  -----  ------  ----  --------  ----------------------------------

base_addr  addr   772154        writable  controller base address in IO page

D>>>p

Parameters of device uda:

Name             Short  Value   Unit  Access     Info

---------------  -----  ------  ----  ---------  ----------------------------------------------------------------------

name             name   uda           read only  Unique identifier of device

type             type   UDA50         writable   Type

enabled          en     0             read only  device installed and ready to use?

emulation_speed  es     1             writable   1 = original speed, > 1: faster

verbosity        v      3             writable   1 = fatal, 2 = error, 3 = warning, 4 = info, 5 = debug

base_addr        addr   772154        writable   controller base address in IO page

slot             sl     20            writable   backplane slot #, interrupt priority within one level, 0 = next to CPU

intr_vector      iv     000           writable   interrupt vector address

intr_level       il     5             writable   interrupt bus request level: 4,5,6,7

22_bit_dma       dma22  1             writable   Enable 22-bit DMA

D>>>ena uda

  If you need any additional information about the problem do let me know.

Thanks and Best Regards,

Mark

[Joerg Hoppe]

Hi Mark and all,

this error should've been fixed  in the "beta" branch, isn't it?
Thanks to  Kristen McIntyre for reporting this first,

kind regards,
Joerg

[Mark Matlock]

Joerg,
Thanks! I must not have updated this QBone to the beta branch. I’ll do that and try it again.
Best,
Mark