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