At long last, V2.0 of the Ersatz-11 Demo is finally ready!

Ersatz-11 (a.k.a. E11) is a PDP-11 emulator that runs on 80x86 machines
under DOS (or in a Windows DOS box), and emulates a range of PDP-11 models.
On a midrange Pentium, it runs at approximately twice the speed of a
PDP-11/93;  the exact speed depends on the application.

The demo version is available from FTP.DBIT.COM in directory /pub/e11.
It may be used for unlimited personal/hobby use, commercial use is limited
to a 30-day evaluation period.

Major enhancements since the previous version (V1.1A):

* Emulated CPU models extended to include PDP-11/24, PDP-11/44, PDP-11/45,
  PDP-11/70, PDP-11/94, in addition to the PDP-11/34a and PDP-11/40 emulation
  already present in V1.1A.  This includes 22-bit addressing with or without
  the Unibus map, but since the Demo version runs in real mode there is a
  practical limit of around 350-400 KB of PDP-11 memory.

* RXT11+RX01, RK11D+RK02/RK05, RH11/RH70+RS03/RS04, TC11+TU56, TM11+TU10,
  TA11+TU60, RH11/RH70+TM03+TE16/TU45/TU77 device emulations added.  All
  disks and tapes now have settable CSR/vector addresses.

* Floppy disk driver now works with all emulated disks (and DECtape), and
  has been extended to support RX23, RX24, RX26, RX33, RX50, DS RX50, and
  Russian "MY:" disks (in addition to the existing RX01/02/03 support).

* Completely definable keyboard;  every possible keypress or keyrelease
  (even shift keys) may have a user-defined key script bound to it, to support
  customization and/or non-English keyboard layouts.

Major disadvantages vs. the previous version (V1.1A):

* Commercial use limited to 30-day evaluation period;  this restriction is
  of course NOT retroactive, so commercial users may still use V1.1A without
  any time limit.

* Total size of all disk image files that may be MOUNTed at once is limited
  to 32 MB.  Again, V1.1A did not have this limitation so continue using it
  if this limit is too low.

* No plain ASCII version of the user's manual (just Postscript).  Yet.

This version was a long time coming, almost every part of E11 has had a
major rewrite and the code is far more robust and extendable than it used
to be.  Up to 68,000 lines of source and still growing fast!  Anyway
please let me know what you think, I'm eager to add more features and
take care of any bugs that crop up as quickly as possible.

John Wilson
D Bit
http://www.dbit.com

--
jcomeau@world.std.com aka John Otis Lene Comeau
Home page: http://world.std.com/~jcomeau/
Disclaimer: Don't risk anything of value based on free advice.
"Anybody can do the difficult stuff. Call me when it's impossible."