[Simh] 11LOGO

[Lars Brinkhoff]

This is an early version of 11LOGO from MIT.  We had it running on ITS'
11SIM simulator for a while.  Now we also figured out how to make it run
on SIMH.

http://lars.nocrew.org/its/11logo.simh
http://lars.nocrew.org/its/11logo.lda

It uses a vector display, supported by 11SIM.  Here's documentation for
the hardware registers and display instructions, on page 29-30:

http://bitsavers.org/pdf/mit/ai/aim/AIM-240a.pdf