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Frequently Asked Questions (FAQS);faqs.252
Q4.1.4: VMEbus DSP boards.
VMEbus boards, Analog Devices processors:
----------------------------------------------------------------------------
Name: ADSP-21020 IXD7232
Type: Dual ADSP-21020 VME bus board
Company: Ixthos, Inc.
Processor: 2x ADSP-21020 512 Kbytes data/proc, 196 Kbytes prog/prc
Analog I/O: available via daughter card
Features: I/O mezzanine, RS-232 port, digital I/O option
VMEbus boards, AT&T processors:
----------------------------------------------------------------------------
Name: SURFboard
Type: VMEbus DSP board
Company: AT&T (Louis Rosa 908-582-5667 or Jim Snyder surf@research.att.com)
Price: $10K
Processor: 6 DSP-32C's organized as 2 sets of 3 processors
(input, output, central -- can be configured)
Analog I/O: None, but can use Ariel ProPort VME board.
Comments: Multiple boards can be chained together. Central DSP's both have
access to a 1Mbyte DRAM which is also the interface to the VMEbus. Input
and output DSP's only have 2Kx32 memory. Central DSP's also have 256Kbytes
of local SRAM.
Name: VME6U6
Type: VMEbus 6U DSP32C board
Company: Communication Automation and Control, Inc. (CACI) (800) 367-6735
Processor: 6 DSP-32C 50 MHz, 512 Kbytes SRAM each
Analog I/O: available via mezzanine bus
Features: TDM expansion port to other boards, mezzanine bus
Price: $10,900
Name: VME6U6
Type: VMEbus 6U DSP32C board
Company: Communication Automation and Control, Inc. (CACI) (800) 367-6735
Processor: 12 DSP-32C 50 MHz, 128 Kbytes SRAM each (exp. to 512 Kby each)
Analog I/O: available via mezzanine bus
Features: TDM expansion port to other boards, mezzanine bus
Price: $18,800
Name: VE-32C
Type: VMEbus 6U DSP32C four processor board
Company: Valley Technologies
Processor: 4x DSP-32C 50 MHz, 8 Kw SRAM each (exp to 128 Kw each)
Features: 16 bit digital matrix switch for IPC
Name: UltraFFT
Type: VME board (6U form factor)
Company: Valley Technologies
Processor: 2x DSP32C ?? MHz; 2x Plessey PDSP16510 FFT processors
Name: UltraDSP
Type: VME board (6U form factor)
Company: Valley Technologies
Processor: DSP32C 40 MHz; Sharp LH9124 DSP
VMEbus boards, Motorola processors:
----------------------------------------------------------------------------
Name: V-56 DSP56001 VME board
Type: DSP56001 VME bus card
Company: Ariel Corp. (908) 249-2900
Processor: 27 MHz Motorola DSP56001, 32Kw P RAM, 64Kw data RAM
Features: EPROM boot, 24 bit parallel I/O, serial drivers, 24 bit ADBus
peripheral expansion port.
Analog I/O: None.
Name: DSP56001 VME board
Type: DSP56001 VME bus card
Company: Spectrum Signal Processing (604) 438-7266
Processor: 2x Motorola DSP56200 10MHz 24K words RAM
Analog I/O: dual channel 16 bit 153 kHz A/D, D/A
Name: Versatile Array Signal Processor
Type: VME-based three board (or more) set
Company: Spectrum Signal Processing (604) 438-7266
Processor: 5x DSP96002
Comments: contains (1) general signal processing board (four processor
DSP96002 VME board), (2) I/O processor board (DSP96002 VME board),
(3) two-port memory board (4Mx64 bit dual port memory).
Name: MMI-105 Single Channel Audio/Signal Processor
Type: VME board
Company: Vigra
Processor: 20 MHz 56001 DSP (27 Mhz optional) 8K SRAM and 1 Meg ($1895)
or 8 Meg ($2995) DRAM
Analog I/O: 14 bit A/D and D/A; 8, 13.6, and 19 KHz sampling rates.
Features: Mic & line inputs, power amp & line outputs.
Name: MMI-210 Signal/Audio Processor
Type: VME board
Company: Vigra
Processor: 2x 27 MHz 56001 DSPs 8K SRAM (32K optional) and 1 Meg ($2995)
or 4 Meg ($3650) DRAM
Analog I/O: 16 bit A/D and D/A; 8, 16, 32, 44.1, 48, 96 Ksamples/sec
Features: Line and mic inputs, line and power amp outputs.
Name: MMI-420 Four Channel Signal Processor
Type: VME board
Company: Vigra
Price: $3225
Processor: 4 56001's 27 MHz - 96K SRAM and 16K EPROM per DSP
Features: 4 Megs multi-ported DRAM
Name: MMI-4210 Four Channel Signal/Audio Processor
Type: VME board
Company: Vigra
Price: $5950
Processor: 4x 56001's 27 MHz, 96K SRAM and 16K EPROM per DSP
Analog I/O: 4 16-bit A/D and 4 18-bit D/A converters, 1-50 kHz sample rate.
Features: Transformer or direct-coupled analog I/O. Programmable output mixing,
input and output gain levels. Digital mixing, speech energy detection, and
ADPCM on firmware.
VMEbus boards, Texas Instruments processors:
----------------------------------------------------------------------------
Name: HEXC31
Type: 6U VMEbus 6 processor DSP card
Company: Analogic
Processor: 6x TMS320C31 40 MHz, 512 kw SRAM/proc, 16 MB DRAM,
Name: Banshee/VME
Type: VMEbus DSP accelerator card
Company: Atlanta Signal Processors, Inc.
Price: starts at $4,995
Processor: TMS320C30
Analog I/O: available as a separate daughter board.
Features: Programming tools can be used through any PC-compatible computer
(separate debugging port).
Name: Ranger
Type: VME board
Company: Image and Signal Processing
Processor: up to 4 TMS320C30
Comments: Some libraries included.
Name: Clipper
Type: VME board
Company: Image and Signal Processing
Processor: up to 6 TMS320C40
Name: MZ 7770 Quad C40 DSP engine
Type: VMEbus 6U DSP board
Company: Mizar
Processor: 4x TMS320C40 50 MHz, 1 Mbyte SRAM per proc, 1 Mbyte global SRAM
Features: 512 Kbyte flash EEPROM
Name: HyperFlo DSP-3
Type: 6U VMEbus 3 processor DSP card (plus 68030 GP CPU)
Company: Pacific Cyber/Metrix, Inc.
Processor: 3x TMS320C30 40 MHz, 512 Kbytes SRAM/proc; 68030 general purpose CPU
Features: 3x 36 bit parallel I/O ports, fifos between processors
Name: HyperFlo DSP-4
Type: 6U (?) VMEbus 3 or 6 processor DSP card (plus 68040 GP CPU)
Company: Pacific Cyber/Metrix, Inc.
Processor: 3x or 6x TMS320C40 40 MHz; 68040 general purpose CPU
Name: HyperFlo DSP-38
Type: 6U VMEbus 3 processor DSP card (plus 68030 GP CPU)
Company: Pacific Cyber/Metrix, Inc.
Processor: 3x TMS320C30 40 MHz, 512 Kbytes SRAM/proc; 68030 general purpose CPU
Features: like DSP-3, but with MAXbus video interface
Name: Triple TMS320C25 Processor Baseboard (4282)
Type: VMEbus DSP board
Company: Pentek, (201) 767-7100
Processor: 1x 20 MHz TMS320C25 master processor with 32Kx16 SRAM,
32Kx16 EPROM; 2x 40 MHz TMS320C25 slave processors with 8Kx16 SRAM
(accessible by master).
Features: 1Kx16 dual-port RAM between VMEbus and master processor.
Name: TMS320C30 Processor MIX Baseboard (4283)
Type: VMEbus DSP board
Company: Pentek, (201) 767-7100
Processor: TMS320C30, 32 MHz, 256 KB SRAM, 128 KB EPROM, 1, 4, or 8 MB
dual-port RAM.
Analog I/O: available as separate daughter board.
Features: MIX expansion bus, 17 pin I/O timer connector
Comments: the MIX expansion bus allows up to three additional MIX DSP boards
to be attached to the 320C30 baseboard. MIX boards available from Pentek
include: 1 processor TMS320C30; 2 processor TMS320C30; 3 processor AT&T DSP32C;
1 processor TMS320C40; 2 processor TMS320C40; and a variety of analog and
digital I/O interface boards.
Name: SKY Challenger
Type: VMEbus DSP board
Company: SKY Computers
Processor: 2x TMS320C30
Name: SPIRIT-30 VME
Type: VME board
Company: Sonitech International
Processor: TMS320C30 33 MHz, 256 Kbytes SRAM (expandable)
Analog I/O: available via serial port
Features: serial, parallel port; mezzanine bus
Name: Dual TMS320C30 VME board
Type: Dual processor TMS320C30 VME board
Company: Spectrum Signal Processing (604) 438-7266
Processor: 2x TMS320C30 33 MHz, 64K words RAM per processor
Analog I/O: optional dual 18 bit 200 kHz A/D, D/A
Comments: 6U Eurocard format
VMEbus boards, other processors:
----------------------------------------------------------------------------
Name: CRV1M40
Type: VME board (6U form factor)
Company: Catalina Research Inc., (719) 531-5767
Processor: Sharp LH9124/9320 40 MHz
Analog I/O: None (?)
Features: 8K of VME address space, 16 pages of 32kx16 program space, mezzanine.
(See also: Valley UltraFFT and UltraDSP, under the VMEbus AT&T processor
section, above).
Q4.1.5: DSP development boards for the NeXT bus.
----------------------------------------------------------------------------
Name: QP-56
Type: Five processor DSP56001 card for NeXT NextBus
Company: Ariel Corp. (908) 249-2900
Processor: 5x DSP56001 26 MHz 8K/16K words RAM per processor
Features: Five NeXT compatible DB-15 ports.
Q4.1.6: DSP development boards for the SCSI bus.
----------------------------------------------------------------------------
Name: DSP-32C
Type: SCSI Interface DSP Board (actually a PC board which can be
accessed through an on board SCSI port).
Company: Ariel
Price: $3,495
Processor: AT&T DSP-32C
Analog I/O: 16 bit analog I/O
Comments: Includes the PDS-32C Program Development Software.
Name: DeskLab
Type: SCSI data collection/analysis box
Company: Gradient (609) 387-8688
Price: $5,500
Processor: ?
Analog I/O: 14 bit A/D D/A, Telephone interface is available.
Comments: Complete package of data collection and analysis tools under UNIX.
It is not possible (supported) to directly access the DSP that is in the box
nor can user specified functions be run using their analysis package.
Name: SKYstation
Type: DSP vectorizing accelerator for sparc workstations
Company: SKY Computers (508) 256-1626
Price: $10K and up (depends on amount of memory required)
Processor: Intel I860/960
Analog I/O: None.
Comments: Vectorizing C and FORTRAN compilers available. Math library(hand
coded) also available. Company also makes VME cards with similar features.
Name: DAT-Link and DAT-Link+
Type: Standalone SCSI unit
Company: Townshend Computer Tools (514) 289-9123
Price: US: $4,000-$4,500
Processor: DSP-32C with 64k RAM, expandable to 2Mbytes.
Features: AES/EBU interface.
Comments: Full networked software with server, applications and libraries
including source. Real time playback/recording of stereo audio files.
Trainable IR transceiver - control any device with IR remote control.
Works with any UNIX work-station that has SCSI.
Q4.1.7: Standalone DSP development boards
----------------------------------------------------------------------------
Name: EZ-LAB kit
Type: ADSP-2101 stand alone evaluation module
Company: Analog Devices
Processor: ADSP-2101
Features: needs power supply, speaker, and microphone. Comes with PC
development software and some canned demos.
Name: ADSP-2105 DSP-11B, ADSP-2101 DSP-11S
Type: ADSP-2105 and ADSP-2101 stand-alone DSP boards
Company: Innovative Devices
Processor: ADSP-2105 or ADSP-2101
Analog I/O: 4x 14 bit A/D, 2x 14 bit D/A.
Comments: 3"x5" stand-alone DSP board.
Name: MX31 Modular Embedded System
Type: TMS320C31 stand-alone board
Company: Integrated Motions, Inc. (IMI)
Processor: TMS320C31 33 MHz; 16, 64, or 256 Kw RAM; 16 or 64 Kw ROM
Features: 88 pin expansion bus, 16 bits parallel I/O, 2 RS-232, 3 int lines
Comments: 4"x5" board designed for use in embedded systems; other cards
of same form factor under development.
Name: AE2000
Type: TMS320C31 board
Company: Intellibit
Processor: TMS320C31
Comments: Board is only 3"x2.5".
Name: MC68HC16EVB
Type: Motorola 86HC16 standalone board
Company: Motorola
Processor: 68HC16
Analog I/O: 8 bit or 10 bit A/D, D/A requires obtional chip
Features: Includes assembler, simulator, demo C compiler that run on
an IBM PC and communicates via printer port.
Comments: Motorola has been pushing the 68HC16 as a low-end DSP,
even though it's not what most DSP folks think of when they say "DSP".
Board name: ADSP-2101 based 4 kbps voice codec module
Type: ADSP-2101 stand alone module?
Company: Specom Technologies
Processor: ADSP-2101
Features: Voice coding based on CELP.
Comments: stand-alone module?
Name: ADSP-2105 Based digital voice playback system
Type: ADSP-2105 stand alone module?
Company: Specom Technologies
Processor: ADSP-2105
Comments: stores up to 2 hours of speech
==========================================================================
Q4.2: Who makes AES/EBU digital audio transceiver chips?
Several companies:
Sony Corp.: CX23033 transmitter, CX23053 receiver.
Comments: the Sony receiver chip is very difficult to work with due
to a bad PLL design.
Crystal Semiconductor Corp., (512) 445-7222
CS8411 and CS8412 receivers, CS8401 and CS8402 transmitters.
Comment: the 8411 and 8401 are designed for use with microprocessors/DSPs.
The 8412 and 8402 are intended for use in stand-alone applications.
Motorola Corp. (800) 521-6274 or (512) 891-2030 (DSP marketing)
DSP56401 transceiver.
Comment: designed for use with the DSP56000.
Yamaha: YM3613B transmitter, YM3623B receiver, YM3436 receiver,
YM3437 transmitter.
References:
Kahrs, Mark, "An AES/EBU Circuit Compendium or AES/EBU Circuits I Have
Known and Loved," presented at the 91st Convention of the Audio
Engineering Society, October 4-8, 1991. Reprints: AES, 60 East 42nd
St., New York, NY, 10165.
==========================================================================
5. Manufacturer's addresses and telephone numbers.
Analog Devices
1 Technology Way
P.O. Box 9106
Norwood, MA 02062-9106
Phone: (617) 329-4700
Phone: (617) 461-3672 (DSP applications assistance)
Phone: (617) 461-3881 (DSP marketing)
-----
Analogic
8 Centennial Dr.
Peabody, MA 01960-7987
Phone: (508) 977-3000 x. 3468
FAX: (408) 977-9220
-----
Ariel Corp.
433 River Road
Highland Park, NJ 08904
Phone: (908) 249-2900
FAX: (908) 249-2123
BBS: (908) 249-2124
Email: ariel@ariel.com
-----
AT&T Microelectronics
Dept. AL-520404200
55 Union Blvd.
Allentown, PA 18103
Phone: (800) 372-2447
FAX: (215) 778=4106
-----
Atlanta Signal Processors, Inc. (ASPI)
770 Spring St.
Atlanta, GA 30308
Phone: (404) 892-7265
FAX: (404) 892-2512
----
Berkeley Camera Engineering
3616 Skyline Drive
Hayward, CA 94542
Phone: (510) 889-6960
FAX: (510) 889-7606
Email: mikep@nikon.ssl.berkeley.edu
-----
BittWare Research Systems, Inc.
Inner Harbor Center, 8th Floor
400 East Pratt Street
Baltimore, MD 21202
Phone: (800) 848-0435
FAX: (410) 783-7375
-----
Bridgenorth Signal Processing, Inc.
P.O. Box 469
Custer, WA 98240
Phone: (604) 538-0003
FAX: (604) 538-9073
-----
Catalina Research Inc.
Colorado Springs
(719) 531-5767
-----
CMS GmbH
Postfach 100202
Einsteinstrabe 61-63
D-7505 Ettlingen
Germany
Phone: (07243) 31001
-----
Communication Automation and Control, Inc. (CACI)
1642 Union Blvd., Suite 200
Allentown, PA 18103-1510
(215) 776-6669
FAX: (215) 770-1232
-----
Computer Continuum
75 Southgate Avenue
Daly City, CA 94015
(415) 755-1978
-----
Crystal Semiconductor Corp.
P.O. Box 17847
Austin, TX 78760
Phone: (512) 445-7222
FAX: (512) 445-7581
-----
Current Technology, Inc.
99 Madbury Road
Durham, N.H. 03824
Phone: (603) 868-2270
FAX: (603) 868-1352
-----
Data Translation
100 Locke Dr.
Marlboro, MA 01752-1192
(508) 481-3700
(800) 525-8528
-----
Dalanco Spry
89 Westland Ave.
Rochester, NY 14618
Phone: (716) 473-3610
-----
DigiDesign Inc
1360 Willow Road, Suite 101
Menlo Park CA 94025
Tel: 010 1 415 327 8811
FAX: 010 1 415 327 0777
-----
DSP Research
391 Balsam Ave. (OR Possibly: 1095 E. Duane Ave) {Someone clarify?}
Sunnyvale, CA 94086
Phone: (408) 773-1042
FAX: (408) 736-3451
-----
EnterTec, Inc.
P.O. Box 8858
Richmond, VA 23225
Phone: (804)353-7133
FAX: (804) 353-7134
-----
Hollis Electronics Co.
5 Northern Blvd., Unit 13
Amherst, NH 03031
Phone: (603) 598-4640
-----
Image & Signal Processing
120 Linden Avenue
Long Beach CA 90802
Phone: (213) 495-9533
FAX: (213) 495-1258
----
Innovative Devices, Inc.
1119 Damelart Way
Brentwood Bay, B.C. V0S 1A0
Canada
Phone: (604) 652-5240
-----
Integrated Motions, Inc. (IMI)
758 Gilman St.
Berkeley, CA 94710
(510) 527-5810
FAX: (510) 527-7843
-----
Integrated Technologies Solutions, Inc.
402 Chestnut Ln.
East Meadow, NY 11554
(516) 481-0857
FAX: (516) 292-3115
-----
Intellibit
P.O. Box 9785
McLean, VA 22102-0785
Phone: (703) 442-4781
FAX: (703) 442-4784
-----
Ixthos, Inc.
12210 Plum Orchard Drive
Silver Spring, MD 20904
Phone: (301) 890-1000
-----
KINETICSYSTEMS
in USA:
William Ponton
Tel: 609-921-2088
FAX: 609-683-9633
in Europe:
Tel: 41-22-798-4445
FAX: 41-22-798-0525
-----
Logabex
ZI de Montaudran
3 Avenue Didier Daurat
31400 Toulouse
France
Phone: (33) 61-80-94-37
-----
Loughborough Sound Images Ltd
The Technology Centre
Epinal Way
Loughborough Leics LE11 OQE
England
Phone: +44 (0)509 231843
FAX: +44 (0)509 262433
N.B. U.S. distributor is Spectrum Signal Processing (see below)
-----
Mizar
2410 Luna Rd.
Carrolton, TX 75006
(214) 277-4600
FAX: (214) 277-4666
-----
Motorola Corp.
DSP Operation
Mail Drop OE314
6501 William Cannon Drive, West
Austin, TX 78735-8598
Phone: (512) 891-2030 (marketing)
BBS: (512) 891-DSP1 (300/1200 bps)
BBS: (512) 891-DSP2 (1200 bps V.22)
BBS: (512) 891-DSP3 (2400 bps V.22bis)
-----
National Instruments
6504 Bridge Point Parkway
Austin, TX 78730-5039
Phone: (512) 794-0100
Phone: (800) 433-3488
FAX: (512) 794-8411
-----
Natural Microsystems Corp.
8 Erie Drive
Natick, MA 01760-1313
Phone: (800) 533-6120
-----
Pacific Cyber/Metrix, Inc
6805 Sierra Ct.
Dublin, CA 94568-2615
(510) 829-8700
FAX: (510) 829-9796
-----
Pentek, Inc.
55 Walnut St.
Norwood, NJ 07648
Phone: (201) 767-7100
FAX: (201) 767-3994
-----
Prime Ideal
Joseph Virzi
2124 Parker Street #300
Berkeley, CA 94704
Phone: (415) 513-8062
-----
Quantawave
(508) 481-9802
-----
Saddle Point Systems
3960 Greenwood Ave.
Oakland, CA 94602
Phone: (510) 530-0971
-----
Sharp Microelectronics Technology, Inc.
5700 NW Pacific Rim Blvd
Camas, WA 98607
Phone: (206) 834-8711
FAX: (206) 834-8611
-----
Signal-Data
63 Vester Paradisvej
DK-2840 Holte
Denmark
Phone: (45) 30 42 6054
Phone: (301) 890-1000
-----
Sonitech International Inc.
14 Mica Ln.
Wellesley, MA 02181
(617) 235-6824
FAX: (617) 235-2531
-----
Specom Technologies Corp.
3673 Enochs Street
Santa Clara, CA 95051
Phone: (408) 736-7832
FAX: (408) 736-7861
-----
Spectral Innovations
Santa Clara, CA
(408) 727-1314
-----
Spectrum Signal Processing
Westborough Office Park
1500 West Park Drive
Westborough MA 01581 USA
Phone: (508) 366-7355
FAX: (508) 89988 2772
-----
Townshend Computer Tools
Phone: (514) 289-9123,
FAX: (514) 289-1831
E-Mail: datlink%tt@cam.org
-----
Tucker-Davis Technologies
4639 NW 6th St., Suite A
Gainesville, FL 32609
(904) 375-1623
FAX: (904) 375-4523
-----
Valley Technologies, Inc.
RD #4, Rt. 309
Tamaqua, PA 18252
(717) 668-3737
FAX: (717) 668-6360
-----
Virga, Inc.
4901 Morena Blvd.
Bldg. 502
San Diego, CA 92117
(619) 483-1197
-----
Wavetron Microsystems
1135 Oddstad Drive
Redwood City, CA 94063
Phone: (415) 366-5371 or (415) 366-5375
Other information sources:
1. SBus Developer List maintained by Sun. Lists all known SBus devices
being developed. Contact Jeff Siegel (sieg@pistons.sun.com).
2. Signal Technology's N! Power (X-windows software for signal analysis)
is designed to work with "a variety of Data Acquisition Hardware devices."
Their system also has basic and advanced DSP modules.
3. Entropic Speech's Waves+ package (X-windows software for DSP type
processing -- includes a lot of speech tools) works with a number of
processor boards including some of those from Ariel.
=============================================================================
Questions, comments, or submissions for this FAQ should be mailed to
comp-dsp-faq@ohm.Berkeley.EDU, ...!ucbvax!ohm!comp-dsp-faq. Thanks!
Xref: bloom-picayune.mit.edu comp.editors:7429 news.answers:4732
Newsgroups: comp.editors,news.answers
Path: bloom-picayune.mit.edu!enterpoop.mit.edu!snorkelwacker.mit.edu!stanford.edu!ames!elroy.jpl.nasa.gov!usc!howland.reston.ans.net!paladin.american.edu!news.univie.ac.at!hp4at!mcsun!sunic!ugle.unit.no!alf.uib.no!buboo
From: buboo@alf.uib.no (Ove Ruben R Olsen)
Subject: Introduction to comp.editors (Aug 12 1992)
Message-ID: <Ruben-POINTER-10@alf.uib.no>
Followup-To: poster
Supersedes: <Ruben-POINTER-9@alf.uib.no>
Reply-To: Ruben@Uib.no
Organization: University of Bergen, Norway
Date: Sun, 20 Dec 92 23:00:05 GMT
Approved: news-answers-request@MIT.Edu
Expires: Mon 27 Dec 92 23:00:02 1992 GMT
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Archive-name: editor-faq/pointer
This message is automatically posted once a week to inform new readers
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What is this group about ?
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If you have a question about a emacs variant, you would probably get
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\Ruben.
--
Ove Ruben R Olsen a Gnarfer and VI user. EMAIL: ruben@uib.no.
Maintaining the EX/VI-archive and a couple of the Comp.Editors FAQs.
People that are ignorant tend to live a frustrated life, at least when
it comes to editing - But I do belive this is a general rule in life
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From: buboo@alf.uib.no (Ove Ruben R Olsen)
Subject: comp.editors - Frequently Asked Questions
Message-ID: <Ruben-FAQ1-0003@alf.uib.no>
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Reply-To: Ruben@Uib.no
Organization: University of Bergen, Norway
Date: Tue, 17 Nov 92 19:02:41 GMT
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Archive-name: editor-faq/The_FAQ
The following file is a set of Frequently Asked Questions for the group
comp.editors. Certain questions get asked time and again, and this is
an attempt to reduce the bandwidth taken up by these posts and their
associated replies. If you have a question, please check this file
before you post. It may save a lot of peoples time.
This FAQ tends to ignore emacs related questions, as they tend to be
answered adequately in the comp.emacs FAQ.
Please send all comments, discussion, suggestions for new questions and
so on to me, Ove Ruben R Olsen <Ove.R.Olsen@ubb.uib.no>. I'll try to
answer everything I get. I especially need more 'where to get sources'
answers. I'd like some Anonymous UUCP sites, if at all possible.
01) What is comp.editors?
02) Where can I get the latest release of GNU emacs/elvis/crisp/joe/...?
03) Someone has just posted 'my editor is better than your editor'. What
04) Can I get hold of the source code for VI?
05) I have a Emacs question. Should I ask it in comp.editors, or in
06) Someone just mentioned the 'buffer gap method'. What do they mean?
07) How do I reformat paragraphs in vi?
08) Has anyone got a simple editor for Unix?
09) Are there any vi archive sites around?
10) Where can I get vi for VMS?
11) How do I edit binary files with VI ?
12) Why does vi sometimes tell me 'Too much macro text'?
13) Is there a list of bugs in vi?
14) Whats a folding editor?
15) Where can I get the DEC editor EDT for UNIX.
01) What is comp.editors?
Comp.editors is an INET group for the discussion of editors, editing
interfaces and internals generally. For discussion of what an INET
group is, please see the regular postings in news.announce.newusers.
There was discussion some time back about making comp.editors into a
regular usenet group, but so far nothing has come of it.
Almost anything editor-related is acceptable in comp.editors, with a few
caveats (see question 05).
02) Where can I get the latest release of GNU emacs/elvis/crisp/joe/...?
You should check out the companion posting on this issue. The companion
post contains info on the following editors:
ADAMI (TED) AE - Another Editor ALand's Editor Ant's Editor.
Bingo BatMaster BOXER CADET - The CAD Text
calvin (Free VI) ce CEDIT Crisp
cse dte Easy Editor Text EDIT
E Elvis FE - Fred's Editor foldED
FPTED GNU Emacs JOE's editor. Jstevie
KAMAS MAT Editor (C) Mutt Editor 2 Microemacs
Mined Origami PC-Point E2 - Rand editor
pico Ravitz Editor REDT Sedt Editor
SLIM Stevie supered TECO
TERSE Useful Editor Unity Vile
Vision Edit
03) Someone has just posted 'my editor is better than your editor'. What
should I do?
Ignore it. Don't post a reply to comp.editors, whatever you do. These
flame wars tend to go on for ages and they never change anyones mind.
If you really must reply use email, or alt.religion.emacs.
04) Can I get hold of the source code for VI?
Not without a AT&T source license. VI is a direct descendent of ed(1),
and is therefore subject to AT&T licensing. Even if you were to get
hold of the code, to remove all of the AT&T code would be impractical.
There are, however a lot of public domain clones of vi around, Elvis and
Stevie being two. You may also want to check out Vile, which is a vi
feelalike, based on Microemacs.
05) I have a Emacs question. Should I ask it in comp.editors, or in
comp.emacs/gnu.emacs.help?
If the question is specifically about an emacs variant, no. You would
probably get more joy from one of comp.emacs or gnus.emacs.help.
Gnu.emacs.help is specifically for GNU Emacs, whereas comp.emacs
encompasses all variants of emacs (Yes, there is more than one type of
Emacs - there are over 50 in fact).
However, If the question is about an emacs in relation to another type
of editor, then its probably ok to post it here.
06) Someone just mentioned the 'buffer gap method'. What do they mean?
An editor can hold text in memory in a number of ways. If you use the
buffer gap, the file is split into two buffers, with the cursor always
between the two buffers, ie:
[ first buffer ][ second buffer ]
^ cursor is here
When the cursor is moved, a character is just copied from one buffer to
the other (depending on direction). This method makes inserting &
deleting and string searching easy. Insertion just requires extending
the first buffer by one character. Deletion is just removing the last
character of the first buffer. For string searching the file can just
be treated as a single string, with care only needing to be taken when
the match straddles the gap. Disadvantages include difficulty with line
based operations, and problems with page faults when the second buffer
is large. It's also quite hard to implement properly on some segmented
architectures. This is the method used by GNU Emacs.