> SOL-11 - A Small Language and OS for the PDP-11
>
> SOL is a small, non-standard, stand-alone FORTH kernel containing
> everything that is required to edit, store, recall, compile, and run
> programs on PDP-11 microcomputers. It is intended for a minimum
> operating system and programming environment. The FORTH language offers
> full access to the complete hardware. Device drivers for the console and
> some block devices are included.
This is so cool!
> Supported Hardware
>
> * PDP-11 CPU with EIS (required)
> * 8K to 28K words of memory
Dang, the EIS requirement sucks! This would be perfect for PDP-11/03's and
SBC-11/21's. Unfortunatly the /03 needs the KEV11 option, and the SBC-11/21
is just plain out of luck.
Presumably it ignores the MMU (but doesn't object
if one is present, as
few machines have EIS but no MMU).
* console terminal (preferrably VT100)
* RX01/RX02 floppy disk drives
* RL02 disk drive
* TU58 tape drive
I assume it needs the CPU, RAM, console and at least one of the mass
storage devices. It can't need _all_ the drives, surely?
It only needs one of the drives.
I just built it and booted the RL02 image on SIMH. It looks pretty cool, of
course I don't know FORTH, so can't actually do anything....
I suspect the TU58 option means that it's possible to run this on a PDP-11
that doesn't have any drives, but has two SLU's, just run a TU58 emulator on
a PC.
The Sources
SOL is written in PDP-11 assembly language and FORTH. The BTN11
assembler (version 0.9 or later) is required to compile the assembly
part of SOL.
40187 2001-07-17 sol-11.tar.gz version 0.4
Sounds like just what I need (given that I have all of the supported
hardware!). I will take a look. Thanks....
You'll want a UNIX box to build everything. If you don't have a way to
build the images I can through them up on my FTP site (if anyone needs this
it would be best to send me a private email so I'm sure to see the request).
Now to go googling for some FORTH documentation...
Zane