files@willett.UUCP (Mailed File Repository) (12/20/89)
Topic 36 Wed Jun 07, 1989 J.NELSON5 at 22:24 EDT Sub: Build the world's largest Forth Word! Well, I finally tried LMI's superb new virtual memory system for the 80386. It's real, and to try it out I wrote the following bit of code. Hey, Make it bigger! You may end up with the biggest ever! 2 new messages. ************
GEnie@willett.UUCP (ForthNet articles from GEnie) (12/21/89)
Topic 36 Wed Jun 07, 1989 J.NELSON5 at 22:24 EDT Sub: Build the world's largest Forth Word! Well, I finally tried LMI's superb new virtual memory system for the 80386. It's real, and to try it out I wrote the following bit of code. Hey, Make it bigger! You may end up with the biggest ever! ----- This message came from GEnie via willett through a semi-automated program. Report problems to: 'uunet!willett!dwp' or 'willett!dwp@gateway.sei.cmu.edu'
ForthNet@willett.UUCP (ForthNet articles from GEnie) (01/13/90)
Date: 01-13-90 (02:30) Number: 2774 (Echo) To: ALL Refer#: NONE From: GENE LEFAVE Read: (N/A) Subj: POLYFORTH OBJECTS Status: PUBLIC MESSAGE I have recently converted Dick Pountain's object oriented forth word set to polyFORTH 386. I would be happy to upload this if it is of interest to any polyFORTH users here. The code will not work on other FORTHs because of the different dictionary structure. Gene --- ~ EZ-Reader 1.13 ~ [ Doug here. If anyone on comp.lang.forth is interested in this, post a message so that Gary Smith can forward it over to ForthNet. If they upload this package to GEnie and anyone on comp.lang.forth is interested in having it available, I'll download it and send it off to Simtel20. Post replies so that they'll make it back to the rest of the ForthNet.] ----- This message came from GEnie via willett through a semi-automated process. Report problems to: 'uunet!willett!dwp' or 'willett!dwp@gateway.sei.cmu.edu'
ForthNet@willett.UUCP (ForthNet articles from GEnie) (02/03/90)
Date: 02-02-90 (02:23) Number: 2843 (Echo) To: JERRY SHIFRIN Refer#: 2825 From: GENE LEFAVE Read: NO Subj: BRIDGEFORTH Status: PUBLIC MESSAGE I've downloaded Forth Inc's BridgeForth. It seems to work but I don't have any C libraries to really try it. You create a separate .EXE file with the external functions you want to call. This is loaded separately by your FORTH program. A defining word is used to setup the call given the number of args and the number of the routine in the .EXE module. The technique they used is quite clever and only a couple blocks long. . FORTH Incs BBS is not public, unfortunately. It is primarily for product support. --- ~ EZ-Reader 1.13 ~ ----- This message came from GEnie via willett through a semi-automated process. Report problems to: 'uunet!willett!dwp' or 'willett!dwp@gateway.sei.cmu.edu'
ForthNet@willett.UUCP (ForthNet articles from GEnie) (02/03/90)
Date: 02-01-90 (09:52) Number: 2844 (Echo)
To: DENNIS RUFFER Refer#: NONE
From: JACK WOEHR Read: NO
Subj: FINC BBS Status: PUBLIC MESSAGE
Dennis ---
Let me just mention in your (& Sister 'Liz's) hearing this
tidbit:
Since I started mentioning Vesta and Vesta products in
appropriate contexts via networked telecom, we have generated about
100 inquiries (about a 10-month period) and several sales.
When they consider linking the FInc BBS into ForthNet, they
should ask themselves, "Will a direct electronic line to the most
interested, active Forth programmers in the world hurt us?" :-)
=jax=
NET/Mail : RCFB Golden, CO (303) 278-0364 VESTA & Denver FIG for Forth!
-----
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Report problems to: 'uunet!willett!dwp' or 'willett!dwp@gateway.sei.cmu.edu'ForthNet@willett.UUCP (ForthNet articles from GEnie) (06/10/90)
Date: 06-08-90 (17:57) Number: 1654 (Echo) To: DENNIS RUFFER Refer#: NONE From: GENE LEFAVE Read: NO Subj: POLYFORTH FOR 68020 Status: PUBLIC MESSAGE We're doing a system for a larger then usual costomer and I need to port our pf68K to a 68020. As far as I can tell everything is pretty much the same except for a few new instructions. Can you think of anything I should know before I start. I've already done the necessary [Garbage in transmission here -dwp] interrupt routines for the 68010. So these should work on the '020. I'm using the SBE board and the differences between the old and new boards are not great; a different clock, some addresses, and a different serial chip. This is the first time I'll be bringing up a system from scratch and I'm worried about any hidden "gotcha's". --- ~ EZ-Reader 1.13 ~ ----- This message came from GEnie via willett through a semi-automated process. Report problems to: uunet!willett!dwp or willett!dwp@hobbes.cert.sei.cmu.edu
ForthNet@willett.UUCP (ForthNet articles from GEnie) (06/11/90)
Category 3, Topic 36 Message 33 Sat Jun 09, 1990 D.RUFFER [Dennis] at 16:00 EDT Re: GENE LEFAVE > need to port our pf68K to a 68020... > Can you think of anything I should know before I start. I don't think there is much of anything that will get in your way Gene. polyFORTH has usually already been written to the lowest common denominator between the two and upgrading should be no problem. Where I have run into problems is going the other way. On a 68020 you can access odd addressed bytes, but on the 68000 you can not. If you are already on the 68000, everything has already been ALIGNed. If you are short on memory, you can take that stuff out, but usually it is more trouble than it is worth. > This is the first time I'll be bringing up a system from scratch > and I'm worried about any hidden "gotcha's". I am right in the middle of bring up my first 68K system from scratch also. Mine doesn't work at the moment, so I couldn't tell you how to get around the gotcha's even if I knew what they were. As with any system, it's the power up where all the problems occur. I will keep you informed if I find anything that might help you, but mostly it is configuration stuff that is unique to each system that gets you in trouble. As for advice, what I will do next week is try to get something out to the terminal. From there, you get the interpreter working. Then you can get out of the COMPILER LOAD CPU LOAD TESTING LOAD TRY cycle and test things interactively. DaR ----- This message came from GEnie via willett through a semi-automated process. Report problems to: uunet!willett!dwp or willett!dwp@hobbes.cert.sei.cmu.edu
ForthNet@willett.UUCP (ForthNet articles from GEnie) (07/06/90)
Date: 07-04-90 (03:42) Number: 3452 (Echo) To: DENNIS RUFFER Refer#: 3397 From: GENE LEFAVE Read: NO Subj: BUILD THE WORLD'S LARGEST Status: PUBLIC MESSAGE Dennis: DR>Another one that you might be interested in is the math opcodes that you DR>can use on the 68020. They greatly speed up the math primatives. We've My problem here is modifying the assembler is just slightly beyond me. I've looked at the 68K assembler for years and I still can't figure out how to add an opcode. DR>trying to access. We also display where the interpreter pointer was. DR>Sometimes, this information is invaluable when you have a bug. Any chance of getting this source from the Forth Inc board. Our maintenance is long gone as far as the 68000 system is concerned. But I'm still on maintenance for our 386 system. I've converted the DOS editor to the 68K. Do you need it? --- ~ EZ-Reader 1.13 ~ ----- This message came from GEnie via willett through a semi-automated process. Report problems to: uunet!willett!dwp or willett!dwp@hobbes.cert.sei.cmu.edu
ForthNet@willett.UUCP (ForthNet articles from GEnie) (07/06/90)
Category 3, Topic 36 Message 37 Thu Jul 05, 1990 D.RUFFER [Dennis] at 21:39 EDT Re: GENE LEFAVE > I still can't figure out how to add an opcode. Just a bunch of macros Gene. :-) BTW, I can't do much more than use it myself. <grin> > Any chance of getting this source I'll try to remember to capture it and upload it here. > I've converted the DOS editor to the 68K. Do you need it? Is that the full screen +EDIT ? I just converted it to work on a terminal myself. I'd be curious what keys you decided to map everything to. I ended up putting everything on Control keys but needed two table, one just for all the X related functions. How did you get all the keys in? DaR ----- This message came from GEnie via willett through a semi-automated process. Report problems to: uunet!willett!dwp or willett!dwp@hobbes.cert.sei.cmu.edu
ForthNet@willett.UUCP (ForthNet articles from GEnie) (07/11/90)
Category 3, Topic 36
Message 38 Mon Jul 09, 1990
D.RUFFER [Dennis] at 19:34 EDT
Re: GENE LEFAVE
You asked for the 68020 interrupt code. It was only 1 block so here it is.
I'll leave it as an excersise to figure out what it does. :-)
( 68020 Exception vector processing)
: EXCEPTION ( a n) CELLS ! ;
VARIABLE WHERE 8 ALLOT VARIABLE SPURIOUS
: REST ( a a) ." at " . ." I=" . SPACE 1 ABORT" trapped" ;
HERE ] CR WHERE 5 + C@ 12 = IF ." Addr" ELSE ." Bus" THEN
." error accessing " . REST [
ASSEMBLER BEGIN R )+ MTSR I S -) MOV R )+ RL MMOV D0 D1 \\
6 R) D2 MOV RL WHERE AB MMOV D0 D2 \\ D0 S -) MOV
D2 S -) MOV SWAP # I MOV NEXT
DUP 2 EXCEPTION 3 EXCEPTION
HERE ] CR ." Exception # " 4 / . REST [
ASSEMBLER BEGIN R )+ MTSR I S -) MOV R )+ S -) MOV
R )+ S -) H. MOV S -) H. CLR SWAP # I MOV NEXT
4 EXCEPTION 16 20 76 MOVE
BEGIN 1 #Q SPURIOUS AB ADD RTE 24 EXCEPTION
Have fun! DaR
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Report problems to: uunet!willett!dwp or willett!dwp@hobbes.cert.sei.cmu.eduForthNet@willett.UUCP (ForthNet articles from GEnie) (07/11/90)
Date: 07-10-90 (03:44) Number: 3481 (Echo) To: DENNIS RUFFER Refer#: 3462 From: GENE LEFAVE Read: NO Subj: BUILD THE WORLD'S LARGEST Status: PUBLIC MESSAGE To: Dennis Ruffer DR> DR>Is that the full screen +EDIT ? I just converted it to work on a terminal DR>myself. I'd be curious what keys you decided to map everything to. I I cheated. 8-) I'm using PC's as terminals with my own terminal emulation program (written in polyFORTH of course). I encode all the keys, so +EDIT uses the same keys no matter what system I'm on. Only exception is that the latest +EDIT uses some alt keys which are local commands on my terminal emulator so I switched those to Ctrl keys. I also added a funtion (Ctrl G) that lets you assign any decimal key code to the "`" character. This lets me put graphics into the help screens. Gene --- ~ EZ-Reader 1.13 ~ ----- This message came from GEnie via willett through a semi-automated process. Report problems to: uunet!willett!dwp or willett!dwp@hobbes.cert.sei.cmu.edu
ForthNet@willett.UUCP (ForthNet articles from GEnie) (07/27/90)
Date: 07-24-90 (08:22) Number: 3561 (Echo) To: DENNIS RUFFER Refer#: 3551 From: JACK WOEHR Read: NO Subj: PURE PF Status: PUBLIC MESSAGE > >What's so "pure" about polyFORTH? > >Indirect threading. Parameter fields contain definition tokens which p >code field addresses which point to code. Certainly not the most effic >but the most universal technique across various hardware platforms. > True ... indirect threading is actually the *least* efficient (with the exception of some C-coded switch statement primitive engines which I have seen, i.e., Pratt's early CFORTH) inner interpreter. BUT YEZZZZ, it is the *most* portable, there is no question about it. After years of escaping from indirect threaded in favor of faster-executing direct-threaded, JSR-threaded and silicon-threaded schemes, my next Forth for Vesta ... is indirect threaded! This allows me, in this particular case, to author a really dynamite Forth on this particular cpu. =jax= NET/Mail : RCFB Golden, CO (303) 278-0364 VESTA & Denver FIG for Forth! ----- This message came from GEnie via willett through a semi-automated process. Report problems to: uunet!willett!dwp or willett!dwp@hobbes.cert.sei.cmu.edu