TU-58 in simh

[Don North]

On 4/21/2017 6:55 PM, allison wrote:
> On 04/21/2017 09:34 PM, Don North via cctalk wrote:
>> On 4/21/2017 4:25 PM, Brian L. Stuart via cctalk wrote:
>>> I've seen suggestion that TU-58s are emulated in simh on
>>> PDP-11s.  However, I'm not seeing it in a show dev and my
>>> google-fu is failing me to find any info on how to use it.  Any
>>> pointers on how to boot from a TU-58 image?
>>>
>>> TIA,
>>> BLS
>>>
>> Using simh v4.0 from github, in the PDP11 simh ini file:
>>
>> *set tdc enable**
>> **attach tdc0 tu58.dsk*
>>
>> then assuming tu58.dsk is a bootable image:
>>
>> *boot tdc0*
>>
>> Only two units 0,1 are supported (just like a real dual drive) and the
>> images must be 262,144 bytes in size (like a real tu58 cartridge).
>>
> I remember TDC was DECcassette (TU-60).
>
> The boot for RT-11 would be BOOT DD:  the tape image should be built
> with a DD driver or DDX for RT11XM.
> Least that how it works for my physical PDP-11/23 RT11 system.
> Generally all the files that should be on
> a RT11 floppy needs to be on the tape.
>
> For other OSs it first has to fit on the device and have a suitable
> driver for TU58.
>
> Allison
>
TU58 is really not much useful for running any real DEC OS other than XXDP, to 
run diagnostics; that is what I use it for on my 34 and 44 (real hardware). I 
don't use TU58 at all under SIMH (does not make much sense).

RT-11SJ works running from TU58, but just barely, and it is not really usable. 
RT11 is barely usable once you move up to a dual drive RX02.


test[991] pdp11

PDP-11 simulator V4.0-0 Beta        git commit id: 17903827
sim> set tdc enable
sim> att tdc0 11xxdp.dsk
TDC: buffering file in memory
sim> boot tdc0

BOOTING UP XXDP-XM EXTENDED MONITOR

XXDP-XM EXTENDED MONITOR - XXDP V2.5
REVISION: F0
BOOTED FROM DD0
124KW OF MEMORY
NON-UNIBUS SYSTEM

RESTART ADDRESS: 152000
TYPE "H" FOR HELP !

.DIR

ENTRY# FILNAM.EXT        DATE          LENGTH  START VERSION

     1  XXDPSM.SYS       1-MAR-89         29    000047 E.0
     2  XXDPXM.SYS       1-MAR-89         39    000104 F.0
     3  DRSSM .SYS       1-MAR-89         24    000153 G.2
     4  DRSXM .SYS       1-MAR-89         48    000203 C.0
     5  DATE  .SYS       1-MAR-89          2    000263 B.0
     6  DB    .SYS       1-MAR-89          2    000265 C.0
     7  DD    .SYS       1-MAR-89          3    000267 D.0
     8  DIR   .SYS       1-MAR-89          7    000272 D.0
     9  DL    .SYS       1-MAR-89          4    000301 D.0
    10  DM    .SYS       1-MAR-89          4    000305 C.0
    11  DR    .SYS       1-MAR-89          3    000311 C.0
    12  DU    .SYS       1-MAR-89          4    000314 E.0
    13  DUSZ  .SYS       1-MAR-89          2    000320 C.0
    14  DY    .SYS       1-MAR-89          3    000322 D.0
    15  LP    .SYS       1-MAR-89          1    000325 B.0
    16  MM    .SYS       1-MAR-89          3    000326 C.0
    17  MS    .SYS       1-MAR-89          4    000331 C.0
    18  MU    .SYS       1-MAR-89          4    000335 E.0
    19  HELP  .TXT       1-MAR-89         29    000341
    20  PATCH .BIC       1-MAR-89         31    000376
    21  SETUP .BIC       1-MAR-89         27    000435
    22  UPDAT .BIC       1-MAR-89         29    000470
    23  XTECO .BIC       1-MAR-89         26    000525
    24  FLOAT .BIN       1-MAR-89         18    000557

FREE BLOCKS:   126

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