tom@math.berkeley.edu (04/28/89)
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I need a single board computer that runs Forth and has at least a 1
megabyte address space. I am supposing that the greatest variety of boards
will be available with the 68000, but I am open to suggestions. Oh yeah,
if it costs more than 600, I am not so interested.
thanks,
tom erbe-technical director-center for contemporary music-mills college
tom@mills.berkeley.edu -or- tom@jif.berkeley.edubryan@intvax.UUCP (Jon R Bryan) (04/28/89)
In article <23705@agate.BERKELEY.EDU>, tom@math.berkeley.edu writes: > I need a single board computer that runs Forth and has at least a 1 > megabyte address space. I am supposing that the greatest variety of boards > will be available with the 68000 ... > tom erbe-technical director-center for contemporary music-mills college Since you're looking for an SBC, I suppose that you're wanting to build it into something and so my suggestion won't be of any help. But all the same, have you looked at the Amiga 500? With a megabyte you're probably looking at a bit more than $600, but you will also have a complete development system. I see that you're involved with music. If by chance you're wanting this SBC for a musical application, again you might want to look at the Amiga. JForth is an excellent environment (an Amiga running JForth was used to win the "World's Fastest Programmer" contest last year). With JForth you can also get HMSL (Hierarchical Music Specification Language, I think). Only problem is, the Amiga isn't a single-board computer.
jax@well.UUCP (Jack J. Woehr) (04/29/89)
In article <23705@agate.BERKELEY.EDU> tom@math.berkeley.edu () writes: > >- >I need a single board computer that runs Forth and has at least a 1 >megabyte address space. Doesn't everyone? :-) > I am supposing that the greatest variety of boards >will be available with the 68000, but I am open to suggestions. Actually, quite a few are 68020's. > Oh yeah, >if it costs more than 600, I am not so interested. > Tom ... Here at Vesta Technology, Inc. 7100 W. 44th Ave., Suite #101 Wheat Ridge, CO 80033 we manufacture SBC's. We also offer custom design, engineering, programming and CAD services. Recently we began development of two boards: 68008 and 68000. The 68008 is built and has a indirect threaded Forth up and running on it. The 68008 can have 128k ROM and 32 k RAM on board. Off-board it can have the rest of the Meg address space that comes with the turf; design your own add-on and use our edge connector. There is an MC68681 duart and a watchdog timer on board. The 68000 will have 128k ROM and 64k RAM on board. Again, use our edge connector and address 16 meg. Our Forth is 32-bit, so all of that space is code &| data, except reserved segments for various peripherals and expansion ( i.e., BE0000 decodes to the DUART) !!!***!!! N.B> These are not products, yet, for two reasons: We have not done the documentation, and we are going to switch to direct threaded Forth. Direct threaded is a nice compromise: it is faster than indirect threaded, and much smaller than JSR threaded. We will have a complete resident system with assembler, decompiler, debugger,multitasker, and editor in 64 k of ROM. We already have a host/diskserver for the DOS machines, and for Amiga shortly. You develop your code using the host's disk drives as the board's drive, then save the overlay back up to host disk and burn a ROM which autoboots! That is why 128 k ROM on each board ... 64k system, 64k for user overlay. User overlays can actually be larger, if ROM is added to a user-supplied expansion board and decoding is contiguous with the main overlay ROM. These boards will, I believe, sell in the <$200 range. Vesta ... we care about the environment ... the Forth environment! {}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{} {} {} {} jax@well ." Sysop, Realtime Control and Forth Board" FIG {} {} jax@chariot ." (303) 278-0364 3/12/2400 8-n-1 24 hrs." Chapter {} {} JAX on GEnie ." Tell them JAX sent you!" Coordinator {} {} {} {}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}
low@melair.UUCP (Rick Low) (05/02/89)
In article <1081@intvax.UUCP>, bryan@intvax.UUCP (Jon R Bryan) writes: > In article <23705@agate.BERKELEY.EDU>, tom@math.berkeley.edu writes: > > I need a single board computer that runs Forth and has at least a 1 > > megabyte address space. I am supposing that the greatest variety of boards > > will be available with the 68000 ... > > tom erbe-technical director-center for contemporary music-mills college > Single-board computers from DY-4 Systems Inc. have a debug monitor on board that includes LMI Forth in it. I've never used the Forth but those who have tell me it's a pretty decent version. DY-4 makes a variety of boards based on 680x0s. I'll leave it to them to blow their own horns. (Yo, DY-4! Are you there?) DY-4 Systems Inc. 21 Credit Union Way 1475 S. Bascom Ave. Nepean, Ontario K2H 9J4 Suite 202 Canada Campbell, CA 95008, USA (613) 596-9911 (408) 377-9822 I'm not associated with them; I'm just a formerly dissatisfied customer who's beginning to come around. cheers -- Rick Low MEL Defence Systems Limited, Ottawa, Canada +1 613 836 6860 mitel!melair!low@uunet.UU.NET