Squeak-dev January 1998

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81 participants
196 discussions

Re: Sending WinSqueak Code: Dumb but Critical Question
by guzdial＠cc.gatech.edu 26 Aug '98

26 Aug '98

>You may try the attached CrLfFileStream which automatically detects the >actual line end convention of a file. To install it for permanent use >change FileStream class>>concreteStream to return CrLfFileStream rather >than StandardFileStream. > >Hope this helps, > Andreas Works great, Andreas! Thank you! My students are filing it in as a I type... Mark -------------------------- Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280 (404) 894-5618 : Fax (404) 894-0673 : guzdial(a)cc.gatech.edu http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html

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Re: #\\ with negative arguments and receivers
by Tim Olson 03 Feb '98

03 Feb '98

Leando wrote: >IMO, the method SmallInteger>>\\ is not working properly with negative >arguments and receivers. For instance, when evaluating -1 \\ -2 one >obtains -3 instead of -1 (or 1). Note that this behavior contradicts both >the mathematical definition and the current implementation of Number>>\\. Yes; this was one of the numeric primitive bugs in the VM that I noted awhile back, but it looks like the fix for it somehow slipped through the cracks. Here's the changeset for the fix again. Note that the VM will have to be recompiled to fix this. -- tim Attachment converted: Cog:Numeric Primitive Fixes.cs (TEXT/R*ch) (0000B200)

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Re: Documentation for Morphic framework
by ocit.inc 02 Feb '98

02 Feb '98

Where may I find docs that describe the intent of this framework. Thanks. Charles OCIT

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Re: Jitter - Segmentation fault on startup
by Ian Piumarta 01 Feb '98

01 Feb '98

Boris, > jitter always fails on startup: > error(s="opcode address is not an integer object") -> > 1) initOpcode should not get the error You should take a very close look at sqMachDep.h and make sure that the symbols JUMP_ALIGN_STRICT and JUMP_ALIGN_BYTE are defined correctly for your CPU (in sqConfig.h). JUMP_ALIGN_BYTE should be defined if instructions can be arbitrarily aligned (e.g. Pentium). JUMP_ALIGN_STRICT should be defined if the CPU does _not_ ignore the lowest bit(s) in jump destination addresses (e.g. PPC and Alpha, but not Sparc -- I don't know about MIPS without looking it up in the manual [which is at work, unlike me ;) ]). When you figure out the correct values, please send them to me. Thanks! > 2) printCallStack should not get SIGSEGV anyway... The opcode table is initialised _before_ the initial context is loaded (if I remember correctly), so any attempt to print a backtrace at that stage of the game is doomed to failure. Regards, Ian

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Re: Jitter - Segmentation fault on startup
by Andreas Raab 31 Jan '98

31 Jan '98

> readImageFromFileHeapSize -> > initializeInterpreter -> > initOpcode(index=1) -> > error(s="opcode address is not an integer object") -> This looks like you're not returning an Integer object (i.e. the lowest bit set) as the opcode address. This is required by Jitter to treat addresses as Integer objects. > printCallStack -> SIGSEGV :-( The SIGSEV comes probably because the interpreter hasn't been initialized at all (you're still during the load phase of the image so that offsets may not have been adjusted yet). Andreas -- Linear algebra is your friend - Trigonometry is your enemy. +===== Andreas Raab ============= (raab(a)isg.cs.uni-magdeburg.de) =====+ I Department of Simulation and Graphics Phone: +49 391 671 8065 I I University of Magdeburg, Germany Fax: +49 391 671 1164 I +=============< http://isgwww.cs.uni-magdeburg.de/~raab >=============+

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Squeak 1.3 unusable
by Richard Smol 31 Jan '98

31 Jan '98

Hi there, For a while now I have been trying to get Squeak 1.3 to work on various sytems (Windows 96, Linux, Mac). I haven't been able to do anything useful with it yet though. I get it to start, but anything more complicated than 'hello world' like stuff results in errors.. or hangs my system (any of them). Heck, evensimply opening views often fails. I can't load any *.st or *.cs files. When I import Newsagent.st or the stuff from the Windows Junta and try to get them to work, it always results in 'message not understood' and whatever errors indicating that there are commands missing. Trying to fix things by hand usualy leads to cascading error messages popping up all over the place... and I am not that good in low-level programming in Smalltalk yet to solve them easily. I love the whole concept of Squeak, but as it is now it's not of much use to me. But before I delete the thing from all my systems forgood, I want to give it one more chance. So, could anyone point out to me what the heck I might be doing wrong? What precautions should I take to make Squeak work properly, otherwise than stated in the (skimpy) documentation. Thanks in advance! Greetz, RS

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Re: Squeak 1.3 unusable
by Serg Koren 31 Jan '98

31 Jan '98

This may be due to missing dictionaries I remember seeing email about? I forget the command to rebuild it... ----- Richard Smol said: >On Sat, 31 Jan 1998, Andreas Raab wrote: > >> Richard, >> >> > So, could anyone point out to me what the >> > heck I might be doing wrong? What precautions should I take to make >> > Squeak work properly, otherwise than stated in the (skimpy) documentation. >> >> Try the following: >> 1. Download a complete set of all files you need. Make sure these files >> are ok and not touched by any download problems. I recommend >> downloading a Stuffit/Zip/Tar file (depending on your preferred >> platform) since the compressed files usually have checksums. > >I am by far no newbie when it comes to the Internet. Binary download is >on whatever I do.... and I use the proper archivers. > >> 2. Decompress the files in a single folder. There should be four files >> now: Squeak1.X.image, Squeak1.X.changes, SqueakV1.sources (the "X" >> stands for the version) and an executable file (named differently >> because of platform specifics), e.g. Squeak.exe on Windows. If you >> download version 1.3 or later you may have two executables - don't >> worry, the other one is the experimental JITTER VM. > >Well, I have the same probs whether I use Jitter or not... > >> 3. (Assuming you're using a graphical UI) Drag the file "Squeak1.X.image" >> on any executable. > >I prefer command-line stuff whenever possible ;) But I did make a >shortcut on Win95. > >> 4. Look what's happening. If you get messages such "Squeak could not find >> the file XXXXXXXX" then you haven't put all of the files in the same >> folder. In general, you must not get such a message. If you do, >> something is wrong. > >No error-messages whatsoever. Squeak starts up nicely on all platforms I >mentioned. I get the spartanic gui in all its splendor: I am able to >browse the class-libraries and open whatever view I feel appropriate. > >> 5. Try the graphics/sound examples in the "Welcome to Squeak" Window. >> > >They almost all fail :( I don't get it. Very frustrating. I really love >Smalltalk and would like to get it all to work. > >Help? > >RS > > ------------------------------------------------- VisualNewt Software: http://www.VisualNewt.com/ Maker of Newt'sPaper(tm) the Premier Newton(R) MessagePad(tm) News Reader. -------------------------------------------------

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Re: Squeak 1.3 problems
by Hamish (DP) Harvey 31 Jan '98

31 Jan '98

On Sat, 31 Jan 1998, Chris Reuter wrote: > Many of the methods have mangled source code, specifically that they > have no newlines. The changes file is, I notice, in Unix format, so OK, I've found it. Look at ftp://st.cs.uiuc.edu/pub/Smalltalk/Squeak/Goodies/STP11/GUI/CRLF.st Cheers, Hamish

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Re: Squeak 1.3 problems
by Hamish (DP) Harvey 31 Jan '98

31 Jan '98

On Sat, 31 Jan 1998, Chris Reuter wrote: > Here's another bug in Squeak 1.3 that nobody seems to have mentioned > on this list yet. I'm running a precompiled Linux binary that I got > from ftp.create.ucsb.edu, the non Jitter version. > > Many of the methods have mangled source code, specifically that they > have no newlines. The changes file is, I notice, in Unix format, so I have seen in passing a filein called CrLf.st or CRLF.st. I didn't get it at the time, which was silly, because now I can't find it :-(. I'm sure it exists, though, and it should sort out Squeak to treat crlf and lf as equal. If anyone knows where it is, can they let me know too! Cheers, Hamish

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Re: Transcendental Numbers
by johnson＠cs.uiuc.edu 31 Jan '98

31 Jan '98

At 11:20 PM 1/30/98, Hamish \(DP\) Harvey wrote: >A minor reorganisation and some small changes let it file in. If it works >properly I still don't know, though matrix multiplication looks OK. One >thing which has come up, though: several methods use local variables in >blocks thus: > >aNumber isComplex > ifTrue: > [| u v | > u := ...snip... > >which squeak doesn't like. Block temporaries are now standard ANSI Smalltalk, but was not in the original Smalltalk-80 nor yet in Squeak. You can probably convert all those methods by pulling the temporaries up to the method level, i.e. | u v | aNumber isComplex ifFrue: [u := ...snip... I'd appreciate getting the changed version back in the archive! -Ralph

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