September 2011 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] [squeak-dev] new Cog VMs available [please read]

by Alexander LazareviÄ

2011/9/22 Eliot Miranda <eliot.miranda(a)gmail.com> > which may have a nicer wrapper (e.g. included in About Squeak?). 1009 > answers the svn revision and url in my VMs and the analogous info in Igor's > VMs. > In Squeak one can find the SystemReporter [1] at Help>>"About this System" of the main DockingBar Alex [1] http://www.squeaksource.com/SystemReporter.html

Sept. 23, 2011

Re: [Pharo-project] [Vm-dev] Re: Integrating Changes in 1.4 that require a new VM

by David T. Lewis

On Thu, Sep 22, 2011 at 11:37:46AM -0700, Eliot Miranda wrote: > > On Thu, Sep 22, 2011 at 11:28 AM, Igor Stasenko <siguctua(a)gmail.com> wrote: > > > > Do you think this will require boosting an image format version number? > > That would make sense. Boosting it so that the new VMs can run older images > and newer, ephemeron images, but that ephemeron images won't open on older > VMs. Yes, this makes perfect sense. Please use image format number 6521, allocating bit 5 as the "ephemeron support bit". Details: 6505 printStringBase: 2 ==> '1100101101001' ImageFormat bitsInUse printStringBase: 2 ==> '10001100111101111' "Next available bit is bit 5" 2r1100101101001 ==> 6505 2r1100101111001 ==> 6521 "A 64 bit image with cog support plus ephemeron support would be 68019" (ImageFormat wordSize: 4 cog: true) asInteger ==> 6505 (ImageFormat wordSize: 4 cog: true) asInteger bitOr: 2r10000 ==> 6521 (ImageFormat wordSize: 8 cog: true) asInteger ==> 68003 (ImageFormat wordSize: 8 cog: true) asInteger bitOr: 2r10000 ==> 68019 6505 printStringBase: 2 ==> '1100101101001' 6521 printStringBase: 2 ==> '1100101111001' 68003 printStringBase: 2 ==> '10000100110100011' 68019 printStringBase: 2 ==> '10000100110110011' If you agree, I'll update ImageFormat and ImageFormatTest to document the new format number assignments. Dave

Sept. 23, 2011

Re: [Pharo-project] [squeak-dev] new Cog VMs available [please read]

by Eliot Miranda

On Thu, Sep 22, 2011 at 5:16 PM, Eliot Miranda <eliot.miranda(a)gmail.com>wrote: > > > 2011/9/22 StÃ©phane Rollandin <lecteur(a)zogotounga.net> > >> >> I want to see >>> C stack backtraces from these VMs whenever they crash. >>> >> >> Here is one :) >> > > Brilliant! Found the bug!! Thanks sooo much!! > well, I spoke too soon. I still don't understand it. But at least I know why it bites :( Keep them coming. > >> Stef >> >> >> >> > > > -- > best, > Eliot > > -- best, Eliot

Sept. 23, 2011

Re: [Pharo-project] [squeak-dev] new Cog VMs available [please read]

by Eliot Miranda

2011/9/22 StÃ©phane Rollandin <lecteur(a)zogotounga.net> > > I want to see >> C stack backtraces from these VMs whenever they crash. >> > > Here is one :) > Brilliant! Found the bug!! Thanks sooo much!! > Stef > > > > -- best, Eliot

Sept. 23, 2011

Re: [Pharo-project] what are the frameworks to develop 3d interactive world like codecity in Pharo

by Frank Church

On 20 September 2011 12:45, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>wrote: > Hi guys > > we would like to propose a fun project and the idea would be to build a > little codecity. > Now what are the frameworks to develop 3d interactive world in Pharo? > > - Lumiere? > - opengl binding? > > Stef > a lurker pops up!! Aren't OpenCobalt, http://www.opencobalt.org/ , http://en.wikipedia.org/wiki/Open_Cobalt, and Croquet, http://en.wikipedia.org/wiki/Croquet_Project, projects running along those lines? According to wikipedia OpenCobalt is the continuation of Squeak. -- Frank Church ======================= http://devblog.brahmancreations.com

Sept. 22, 2011

Re: [Pharo-project] Pharo Sprint Lille 30 Oct

by Noury Bouraqadi

I won't be able to attend. I'll be teaching every friday from tomorrow till the end of sept. After that, I'm having courses other days. Noury On 21 sept. 2011, at 14:16, Marcus Denker wrote: > > On Sep 21, 2011, at 2:02 PM, Marcus Denker wrote: > >> Hi, >> >> We will organize a small Pharo Sprint at Lille the 30th of October (Friday in a week) > > September... > >> Where? RMOD rooms at LIFL: http://rmod.lille.inria.fr/web/pier/contact >> When? starting at 10h >> >> Marcus >> >> >> -- >> Marcus Denker -- http://marcusdenker.de >> > > -- > Marcus Denker -- http://marcusdenker.de > Noury Bouraqadi Ecole des Mines de Douai http://car.mines-douai.fr/noury http://twitter.com/#!/NouryBouraqadi -- -19Ã¨mes JournÃ©es Francophones sur les SystÃ¨mes Multi-Agents (JFSMAâ11) http://www.univ-valenciennes.fr/congres/jfsma2011/ 17-19 Octobre 2011, Valenciennes, France -5th International Conference on Smalltalk Technologies http://www.fast.org.ar November 3th - 5th, 2011 Universidad Nacional de Quilmes (Argentina)

Sept. 22, 2011

Re: [Pharo-project] [squeak-dev] new Cog VMs available [please read]

by Eliot Miranda

On Thu, Sep 22, 2011 at 12:58 PM, Tony Garnock-Jones <tonyg(a)ccs.neu.edu>wrote: > On 2011-09-22 1:37 PM, Eliot Miranda wrote: > > If you're already using a > > 2487 VM or newer > > How do I find the VM version? Pressing cmd-I on the .app in Finder gives > a version of "Croquet Cog 4.0.0 http://www.mirandabanda.org". Presumably > there's an in-image way of finding out? > (1007 to: 1009) collect: [:i| Smalltalk getSystemAttribute: i] which may have a nicer wrapper (e.g. included in About Squeak?). 1009 answers the svn revision and url in my VMs and the analogous info in Igor's VMs. > Regards, > Tony > -- best, Eliot

Sept. 22, 2011

Re: [Pharo-project] Switching windows using CMD+right/left

by Guillermo Polito

On Thu, Sep 22, 2011 at 1:10 PM, Luc Fabresse <luc.fabresse(a)gmail.com>wrote: > > > > 2011/9/22 Douaille Erwan <douailleerwan(a)gmail.com> > >> Le 22/09/2011 15:50, Benjamin a Ã©crit : >> >> He guys, >>> >>> I really would like to know if someone is using the shortcut >>> cmd+right/left to switch between windows into Pharo. >>> >>> Because right now on Mac, this shortcut is used to jump to the begin/end >>> of the line, when fn+right/left jump to the begin/end of the file. >>> It means that per day, I lost 15 minutes (and my nerves ^^) because in >>> eclipse I just jump at the end of the file instead the end of the line ( and >>> then I have to scroll back... frustrating), and when I code in pharo, I use >>> cmd, and then it swap the window. And the worst part is that cmd+right >>> followed by cmd+left do NOT bring you back to the original window, so I am >>> lost and it frustrates me a lot ^^ >>> >>> >>> >>> So I would like to propose to change the shortcut binding to be a bit >>> consistent between pharo and mac (could windows/linux user tell me how it >>> works on those platforms ?), and use ctrl+tab to switch between inner >>> windows (like in a web browser or cmd+` like in Mac OSX >>> >>> >>> >>> >>> Please tell me your experience about this, cause >>> http://www.dailymotion.com/**video/x4m18_queen-i-m-going-** >>> slightly-mad_news<http://www.dailymotion.com/video/x4m18_queen-i-m-going-slightly-mad_news>;) >>> >>> >>> Ben >> >> >> >> I'm linux user, and cmd/alt + tab is used for switch beetwen windows >> application, so it's already use. >> For the moment i'm only beeginner, so i don't really use all keyboard >> shortcut like alt + right ;) >> >> Erwan >> >> > Hi Ben and Erwan, > > I am on mac I have the same experience as Ben. > I was thinking I am more or less the only one annyed by that. > > Ben, I think that CTRL+tab is not used under linux. Isn't ALT+tab to cylce > between windows? > Ctrl+Tab is the current way to switch tabs in apps like browsers or IDEs in Ubuntu. So It can be pretty nice :). > > Luc > > >

Sept. 22, 2011

Re: [Pharo-project] Clarifying and optimizing Integer>>asFloat

by Marcus Denker

On Sep 22, 2011, at 9:17 PM, StÃ©phane Ducasse wrote: > >> Now if some platforms don't adhere to IEEE754, then I think that we >> must first try to find a compatibility layer at VM level What about just using http://www.mpfr.org ? The main goal of MPFR is to provide a library for multiple-precision floating-point computation which is both efficient and has a well-defined semantics. It copies the good ideas from the ANSI/IEEE-754 standard for double-precision floating-point arithmetic (53-bit significand). (I think I asked that questions once alrady...) Marcus -- Marcus Denker -- http://marcusdenker.de

Sept. 22, 2011

Re: [Pharo-project] Integrating Changes in 1.4 that require a new VM

by StÃ©phane Ducasse

On Sep 22, 2011, at 7:12 PM, Eliot Miranda wrote: > > > On Thu, Sep 22, 2011 at 6:17 AM, Dimitry Golubovsky <golubovsky(a)gmail.com> wrote: > Hi, > > Markus Denker wrote: > > ------------------------------------------------------------------------------------------------------------------------------ > > There are two changesets waiting for integrating in 1.4 that have > serious consequences: > > - Ephemerons. The VM level changes are in the Cog VMs build on > Jenkins, but have not > been integrated in the VMMaker codebase. > > http://code.google.com/p/pharo/issues/detail?id=4265 > > I would *really* like to back out these changes. The Ephemeron implementation is very much a prototype, requiring a hack to determine whether an object is an ephemeron (the presence of a marker class in the first inst var) that I'm not at all happy with. There is a neater implementation available via using an unused instSpec which IMO has significant advantages (much simpler & faster, instSpec is valid at all times, including during compaction, less overhead, doesn't require a marker class), and is the route I'm taking with the new GC/object-representation I'm working on now. Note that other than determining whether an object is an ephemeron (instSpec/format vs inst var test) the rest of Igor's code remains the same. I'd like to avoid too much VM forking. Would you all consider putting these changes on hold for now? yes > > If so, I'll make the effort to produce prototype changes (in the area of ClassBuilder and class definition; no VM code necessary as yet) to allow defining Ephemerons via the int spec route by next week at the latest. excellent > > > - Finalization code checks for #hasNewFinalization > This is true in the current VMs build in Jenkins, but in older VMs > this is not in. > > http://code.google.com/p/pharo/issues/detail?id=4483 > > ------------------------------------------------------------------------------------------------------------------------------ > > Since my Android-related branch has not been integrated into the > mainline: where should I merge this from to be in sync? Is this > back-compatible with Pharo 1.3? > > Thanks. > > -- > Dimitry Golubovsky > > Anywhere on the Web > > > > > -- > best, > Eliot >

Sept. 22, 2011