Squeak-dev May 2000

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137 participants
680 discussions

Re: DSA changes open for comment
by Bob Arning 01 Jun '00

01 Jun '00

On Wed, 31 May 2000 18:41:46 EDT JArchibald(a)aol.com wrote: >The previous Mac VM had path: > ftp://st.cs.uiuc.edu/pub/Smalltalk/Squeak/2.8/ > >!!! BUT THE NEW ONE IS NOT THERE !!! > >What is there is > 05/24/2000 10:30AM 159,104 Squeak_VM_2.8-NOT.sea.bin >which is the previous one. > >Dan, where did you put the new one? Jerry, It's in the same directory- I just checked. ftp://st.cs.uiuc.edu/Smalltalk/Squeak/2.8/SqueakVM2.8beta.sea.bin Maybe you need to hit the refresh button on your browser. Cheers, Bob

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Re: DSA changes open for comment
by JArchibald＠aol.com 01 Jun '00

01 Jun '00

=> 5/31/00 5:29:43 PM EDT, arning(a)charm.net [personal communication] => << As best I can tell the two Mac VMs that Dan placed on uiuc recently do not have the *new* LargeIntegers code in them. I cannot be sure about Andreas' Windows VM, but his announcement of it sounded like it did not contain the LargeIntegers plugin either. The test is fairly simple >> The new Windows VM runs the LargeIntegers code; it does not require a plug-in. It is the version I used to run the DSA tests on Windows. WRT the Mac, you are right (in more ways than one). Dan's mail reads: => 5/28/00 1:43:44 AM EDT, Dan.Ingalls(a)disney.com => << In the same 2.8 folder on UIUC where I put the interim 2.8beta VM for the Mac, there is now a "real" one, by the name of SqueakVM2.8beta.sea.bin This VM... IS built from all the latest plugin sources IS "fat" (ie it will run on a 68K) DOES NOT have the new LargeInteger primitives (but it rocks with the plugin!) DOES have fast recovery from missing primitives (so it still runs fine without the plugin) DOES support 'Smalltalk listBuiltinModules' and related functions >> The previous Mac VM had path: ftp://st.cs.uiuc.edu/pub/Smalltalk/Squeak/2.8/ !!! BUT THE NEW ONE IS NOT THERE !!! What is there is 05/24/2000 10:30AM 159,104 Squeak_VM_2.8-NOT.sea.bin which is the previous one. Dan, where did you put the new one? Cheers [and with the hope of an iterim VM convergence soon], Jerry. ____________________________ Jerry L. Archibald systemObjectivesIncorporated ____________________________

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can someone post an updated 2.8b image?
by mcmoebius 31 May '00

31 May '00

for the life of me, i can't get my image updated to the latest 2.8b image. i've tried the new VM, but i still can't get it. can someone post a compressed, updated image to the FTP site? actually, it wouldn't be a bad idea to post a compressed, fully updated image each time a significant batch of updates are published. danke jason

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Re: Current VM locations. Was: DSA changes open for comment
by JArchibald＠aol.com 31 May '00

31 May '00

Let try this again: => 5/31/00 5:03:27 PM, JArchibald(a)aol.com => << The latest Squeak2.7 Virtual Machines have been posted to ftp://st.cs.uiuc.edu/pub/Smalltalk/Squeak/2.7/files/SqueakExe.zip for Windows (I have verified this one) and ftp://st.cs.uiuc.edu/pub/Smalltalk/Squeak/2.8/Squeak_VM_2.8-NOT.sea.bin for the Macintosh (though I haven't personally tested this one -- the VM~2.8). >> These are interim version. The correspond to interim .image and .changes files, currently having worked their way up to ChangeSet #2210. Those files can be obtained from ftp://st.cs.uiuc.edu/pub/Smalltalk/Squeak/2.7/files/Squeak2.8a-2210.zip Jerry. ____________________________ Jerry L. Archibald systemObjectivesIncorporated ____________________________

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Re: Current VM locations. Was: DSA changes open for comment
by JArchibald＠aol.com 31 May '00

31 May '00

=> 5/31/00 5:03:27 PM, JArchibald(a)aol.com => << The latest Squeak2.7 Virtual Machines have been posted to ftp://st.cs.uiuc.edu/pub/Smalltalk/Squeak/2.7/files/SqueakExe.zip for Windows (I have verified this one) and ftp://st.cs.uiuc.edu/pub/Smalltalk/Squeak/2.8/Squeak_VM_2.8-NOT.sea.bin for the Macintosh (though I haven't personally tested this one -- the VM~2.8). >> These are interim version. They correspond to the interim .image and .changes files

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Re: DSA changes open for comment
by JArchibald＠aol.com 31 May '00

31 May '00

=> 5/31/00 4:11:18 PM EDT, arning(a)charm.net => << It was not my impresssion that any of the regularly available VMs currently have the LargeIntegers plugin internally, although that is certainly a possibility with the new plugin architecture. >> Bob, What is a 'regularly available VM'? The latest have been posted to ftp://st.cs.uiuc.edu/pub/Smalltalk/Squeak/2.7/files/SqueakExe.zip for Windows and ftp://st.cs.uiuc.edu/pub/Smalltalk/Squeak/2.8/Squeak_VM_2.8-NOT.sea.bin (though I haven't personally tested this one -- the VM~2.8). These have the LargeIntegers code in them, without a plugin. Bruce has been doing an incredible job keeping the archive up to date. Dan added the Mac version to 2.8 folder. Cheers, Jerry ____________________________ Jerry L. Archibald systemObjectivesIncorporated ____________________________

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Re: DSA changes open for comment
by JArchibald＠aol.com 31 May '00

31 May '00

=> 5/31/00 3:02:39 PM EDT, JArchibald(a)aol.com => << In a message dated 5/31/00 1:41:35 PM Eastern Daylight Time, arning(a)charm.net writes: << if you have a DSA plugin for your platform, but do NOT have the LargeIntegers plugin >> >> Sorry about that. A slip of the fingers. Jerry. ____________________________ Jerry L. Archibald systemObjectivesIncorporated ____________________________

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Re: Karel the Robot
by wallingf＠cs.uni.edu 31 May '00

31 May '00

>Does anybody have experience with Karel the robot for teaching programming? > >Does anybody read the book? is it worth to buy it? >Does somebody thought of implementing this is Squeak? >May be not exactly ;) My good friend Joe Bergin wrote a version of Karel called Karel++ for moving toward OO programming. He can probably give you some ideas about using it as well as links to his support materials for teaching with it. His URL is http://csis.pace.edu/~bergin/, and his e-mail is jbergin(a)pace.edu . ---- Eugene

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DSA changes open for comment
by Bob Arning 31 May '00

31 May '00

For those who care about DSA, here are a couple of changesets that will simplify DSA code, make it work with the new LargeIntegers plugin and make it faster. It's nice when you get all that at the same time! We have had some offline discussions and testing, but I wanted to see if anyone could think of problems before making this an official [FIX][ENH]. Note: if you have a DSA plugin for your platform, but do NOT have the LargeIntegers plugin, then you probably do not want to use this. Cheers, Bob ================================================================================================ http://www.charm.net/~arning/dsaPart1.31May1313.cs This is the first of two changesets to DSA that will: - fix the incompatibility between the current code and the new LargeInteger plugin - provide some timing data useful in evaluating part two - provide for saving some signatures to disk to validate part two After filing this in, you can do: - (DigitalSignatureAlgorithm runTiming) to get a short report to the Transcript showing times for various large integer arithmetic implementations - (DigitalSignatureAlgorithm timeDecode: 20) to get timing information on signature verification with the current DSA code - (DigitalSignatureAlgorithm writeExamplesToDisk) to save some messages with signatures and public keys to disk. This file can be used in validating the second changeset ================================================================================================ http://www.charm.net/~arning/dsaPart2.31May1321.cs This is the second of two change sets for DSA which will: - Replace the DSA primitives for LargeInteger arithmetic with corresponding Squeak ones. Now that we have the LargeIntegers plugin, this will allow us to verify signatures more quickly while getting rid of DSA-specific primitives. After filing this in, you can: - (DigitalSignatureAlgorithm timeDecode: 20) to see how signature verification times compare to the previous implementation - (DigitalSignatureAlgorithm testExamplesFromDisk) to read some messages from a file created by the previous implementation. This will help to validate that we can still verify messages correctly. ================================================================================================ On Wed, 31 May 2000 07:16:21 -0700 (PDT) John.Maloney(a)disney.com wrote: >For the public Squeak, I think it probably makes sense to just patch >DSA for the time being, then cut over to using the built-in integer >code when 2.8 has been out for a while. But I could also be convinced >to switch to large int primitives right away. On Wed, 31 May 2000 08:14:58 -0700 Dan Ingalls <Dan.Ingalls(a)disney.com> wrote: >I would say... > >1. Drop the DSA primitives now > Less is more > Anyone who critically needs speed here can keep them and > include the necessary fix.

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Re: Proposal3: Make $_ a valid identifier character
by Dean_Swan＠Mitel.COM 31 May '00

31 May '00

From: Dean Swan@MITEL on 05/31/2000 12:34 PM Tim, Sign me up too. The complete lack of underscores in identifiers (or anywhere else, for that matter) is one of the reasons I like Smalltalk. IMO, underscores could be rename "uglyscores", and here I am stuck with one of the buggers in my e-mail address! :-( It always sounds awkward to me when I have to give someone my e-mail address over the telephone. -Dean dean_swan(a)mitel.com Tim Rowledge <tim(a)sumeru.stanford.edu> on 05/29/2000 05:21:31 PM Please respond to squeak(a)cs.uiuc.edu To: squeak(a)cs.uiuc.edu cc: (bcc: Dean Swan/Ogd/Mitel) Subject: Re: Proposal3: Make $_ a valid identifier character In message <Pine.A41.4.21L1.0005290734090.57388-100000(a)login5.isis.unc.edu> you wrote: [snip] > Or, moreToThePoint, InterCapping *is* HowSmalltalkWorks, and, as > far as I'm concerned, it reallyImportant to preserve the LookAndFeel of > Smalltalk, at least in StandardSmalltalkCode. [snip] > And, *if* we have to have littleLinesInOurIndentifiers, I'd much prefer > the lisp/scheme style-of-using-dashes than using_those_cursed_underscores. Bijan, welcome to the Society for the Preservation of the Smalltalk Assignment. tim -- Tim Rowledge, tim(a)sumeru.stanford.edu, http://sumeru.stanford.edu/tim To define recursion, we must first define recursion.

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