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- 6-Feb-86 08:05:31-MST,1636;000000000001
- Return-Path: <@USC-ISIF.ARPA:SCHNOORJF@ge-crd.arpa>
- Received: from USC-ISIF.ARPA by SIMTEL20.ARPA with TCP; Thu 6 Feb 86 08:05:25-MST
- Received: FROM GE-CRD.ARPA BY USC-ISIF.ARPA WITH TCP ; 6 Feb 86 06:26:02 PST
- Date: 6 Feb 86 09:27 EST
- From: SCHNOOR JOEL F <SCHNOORJF@ge-crd.arpa>
- Subject: Validated Ada for IBM PC
- To: <info-ada@isif>
-
- Date: 6-FEB-1986 09:24
- From: Joel Schnoor (General Electric - CRD)
- Sender: SCHNOORJF
- Subject: Validated Ada for IBM PC
- To: info-ada@isif@smtp
- --------
- Topic: Ada Compilers on an IBM pc
-
- General Transformation Corp. was scheduled to have a validated compiler
- for an IBM PC/XT or an IBM PC, with hard disk, by the end of 1985.
- I haven't heard anything more about this. The person to
- contact from General Transformation Corp. is Mark Zielinski at (415) 644-0702.
-
- ALSYS has (or is expected to have shortly) a validated compiler for the
- IBM PC/AT, Apollo, and Sun workstations. For more information, write:
- ALSYS, Inc.
- 400-1 Totten Pond Road
- Waltham, MA 02154
- (617) 890-0030
-
- R&R Software is scheduled to produce a validated compiler sometime in 1986,
- for the IBM PC and the PC/AT. For more information, write:
- R&R Software
- P.O. Box 1512
- Madison, WI
- (608) 244-6436
-
- I haven't seen metrics on any of these, but at least they are (or will be)
- available.
-
- Joel Schnoor
- SCHNOORJF@GE-CRD
-
- --------
-
- 6-Feb-86 20:08:50-MST,2940;000000000001
- Return-Path: <@USC-ISIF.ARPA:larry@Jpl-VLSI.ARPA>
- Received: from USC-ISIF.ARPA by SIMTEL20.ARPA with TCP; Thu 6 Feb 86 20:08:42-MST
- Received: FROM JPL-VLSI.ARPA BY USC-ISIF.ARPA WITH TCP ; 6 Feb 86 18:03:22 PST
- Date: Thu, 6 Feb 86 18:03:07 PST
- From: larry@Jpl-VLSI.ARPA
- Subject: Ada on a PC
- To: info-ada@isif.arpa
- X-ST-Vmsmail-To: ST%"info-ada@isif.arpa"
-
- I received some material from Alsys today, including descriptions of their
- IBM PC/AT compiler. The compiler looks very interesting; I intend to give
- it a close look at the SIGAda/AdaJUG meeting the last week of this month in
- L.A. Alsys says they will be demoing their AT and their Sun versions at the
- very least.
-
- The host is an AT with a hard disk, DOS 3.x, and at least 512K of memory.
- The compiler comes with a ~3 MB memory board that fits in a full slot. You
- run under PC-DOS, using your own editor to create source files. Source
- files are stored in a library created and maintained by an Alsys-proprietary
- library manager. You could, of course, edit your files on an XT or any
- other system that creates ASCII files you could copy to your AT. Possibly
- even the library manager would run on an XT or PC compatible. Compilation,
- however, has to be done on the AT.
-
- The Alsys linker binds into the load module a run-time executive which
- handles memory allocation/freeing. It also implements tasking. The
- resulting module will run on a PC or compatible under MS-DOS 2.x. If you
- want to do any floating point the target must also have an 8087/80287 chip.
- No mention is made of a symbolic debugger of any kind, a serious lack if
- there really is none.
-
- If the target is an AT with more than 640K of memory you can have it run in
- virtual mode (this is NOT virtual memory, but the 16 MByte direct memory
- addressing feature of the 80286). There's no need to recompile to have your
- program run in real or virtual mode; I assume this is a linker option.
-
- Alsys claims the object code is about as compact and fast as C code. The
- size of the run-time executive isn't given, however. My guess is that the
- executable is probably a good deal bulkier than the C executable, primarily
- due to the tasking code. (The dynamic-memory management should be comparable
- to the C code.)
-
- Alsys says they'll soon pre-validate the AT compiler system under ACVC 1.6;
- I suppose that means they'll eventually really validate it. They say the
- total cost including the ~3MB memory should be under $3000. If the compile
- and execution speed and load-module size isn't too bad, we'll probably buy a
- copy. That combined with their CAI "Lessons on Ada" ought to make a good
- educational tool here at JPL. Maybe we'll have deep-space craft someday with
- Ada code in them after all!
- Larry @ JPL-VLSI.arpa
-