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- Today's Topics:
- New FORTH
- NOS under Windows
-
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-
- Date: Mon, 24 Sep 90 09:37:08 +0200
- From: klemets@sics.se
- Subject: New FORTH
- To: tcp-group@ucsd.edu
-
- Just a brief note about the state of the NOS FORTH project.
- A version 2.0 is available from sics.se. It is now much more like a
- real Fig-Forth implementation, the major difference being that it
- works on 32 bit integers.
- A large part of the interpreters code is written in FORTH, and even
- more of it may eventually be rewritten in FORTH.
-
- My idea is that remote users should be able to write and execute FORTH
- programs in NOS. To prevent users from from crashing NOS, I have
- implemented an elaborate memory management scheme.
- The FORTH interpreter uses paged segmentation for all memory references.
- The user sees memory as a continous address space when it really
- consists of fixed size blocks which are allocated as needed.
- Pages can be read only, and global variables can be mapped into 4 byte
- pages. Different processes can share the same vocabulary on a
- copy-on-write basis, or use plain read-write shared memory.
-
- There's only one big problem with the FORTH interpreter really, it has
- turned so terribly slow...
-
- Anders
-
- ------------------------------
-
- Date: Sun, 23 Sep 90 21:56:29 UTC
- From: iw0cnb@tomcat.gsfc.nasa.gov
- Subject: NOS under Windows
- To: tcp-group@ucsd.edu
-
- Anybody trying to use NOS under Windows 3.0 ??
- I have tried to, but it loses characters at 4800 baud on a 20 Mhz 386,
- with 8250 UARTS.
- Everything works OK with the SLIP modem at 1200 baud.
- Maybe I should try 16550 chips, but they are difficult to find in Italy.
-
- If anybody can help, it would be nice to have
- NOS working under Windows.
-
- iw0cnb@tomcat.gfsc.nasa.gov
-
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-
- End of TCP-Group Digest
- ******************************