Vm-dev May 2010

vm-dev@lists.squeakfoundation.org

22 participants
59 discussions

Squeak removed from Gentoo Linux
by Bert Freudenberg 28 May '10

28 May '10

Squeak was recently removed from Gentoo Linux Ebuilds because of security issues in our bundled plugins: http://bugs.gentoo.org/show_bug.cgi?id=247363 While it is convenient for us to bundle external library sources, package maintainers do not like that practice. Is there anything we can realistically do about it? - Bert -

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Re: [Pharo-project] Integrating VMMaker-dtl.175
by laurent laffont 27 May '10

27 May '10

Hi Igor, build fails with - squeakvm trunk rev. 2210 - ConfigurationOfVMMaker 1.4 (VMMaker-dtl.176) - all Plugins but UUID external Scanning dependencies of target squeakvm [ 3%] Building C object CMakeFiles/squeakvm.dir/gnu-interp.c.o /home/lol/sandbox/squeakvm/easysqueak/out/build/gnu-interp.c: In function ‘sendInvokeCallbackStackRegistersJmpbuf’: /home/lol/sandbox/squeakvm/easysqueak/out/build/gnu-interp.c:25885:74: erreur: ‘BytesPerWord’ undeclared (first use in this function) /home/lol/sandbox/squeakvm/easysqueak/out/build/gnu-interp.c:25885:74: note: each undeclared identifier is reported only once for each function it appears in /home/lol/sandbox/squeakvm/easysqueak/out/build/gnu-interp.c:25887:24: erreur: ‘BaseHeaderSize’ undeclared (first use in this function) /home/lol/sandbox/squeakvm/easysqueak/out/build/gnu-interp.c:25888:2: erreur: ‘ShiftForWord’ undeclared (first use in this function) make[2]: *** [CMakeFiles/squeakvm.dir/gnu-interp.c.o] Erreur 1 make[1]: *** [CMakeFiles/squeakvm.dir/all] Erreur 2 make: *** [all] Erreur 2 Laurent Laffont http://pharocasts.blogspot.com/ http://magaloma.blogspot.com/ On Thu, May 27, 2010 at 11:02 AM, Igor Stasenko <siguctua(a)gmail.com> wrote: > Dear all, > > i would really like to finish an integration of new finalization. > But this requires releasing a new VMs for all platforms. > > If you think, we're done with VM-side part, then lets proceed with > releasing new VMs, so we could start using new feature. > > -- > Best regards, > Igor Stasenko AKA sig. > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

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"raw" keyboard events form the VM on unix?
by Eliot Miranda 27 May '10

27 May '10

Hi All, is there any way to get the unix VM to deliver raw keyboard events, or at least control and shift key presses? best Eliot

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[commit] r2203 - Update for Alien support. Set VM_PROXY_MINOR to 8. Requires interpreter
by commits＠squeakvm.org 27 May '10

27 May '10

Author: lewis Date: 2010-04-25 12:53:47 -0700 (Sun, 25 Apr 2010) New Revision: 2203 Modified: trunk/platforms/Cross/vm/sqVirtualMachine.c trunk/platforms/Cross/vm/sqVirtualMachine.h Log: Update for Alien support. Set VM_PROXY_MINOR to 8. Requires interpreter functions in SqueakSource/Alien Alien-VMMaker-Support package. These are now incorporated in SqueakSource/VMMaker VMMaker-dtl.170. Modified: trunk/platforms/Cross/vm/sqVirtualMachine.c =================================================================== --- trunk/platforms/Cross/vm/sqVirtualMachine.c 2010-04-13 18:55:21 UTC (rev 2202) +++ trunk/platforms/Cross/vm/sqVirtualMachine.c 2010-04-25 19:53:47 UTC (rev 2203) @@ -73,6 +73,8 @@ sqInt isWordsOrBytes(sqInt oop); sqInt includesBehaviorThatOf(sqInt aClass, sqInt aSuperClass); sqInt isArray(sqInt oop); +sqInt internalIsMutable(sqInt oop); +sqInt internalIsImmutable(sqInt oop); /* InterpreterProxy methodsFor: 'converting' */ sqInt booleanValueOf(sqInt obj); @@ -128,6 +130,7 @@ sqInt fullGC(void); sqInt incrementalGC(void); sqInt primitiveFail(void); +sqInt primitiveFailFor(sqInt reasonCode); sqInt showDisplayBitsLeftTopRightBottom(sqInt aForm, sqInt l, sqInt t, sqInt r, sqInt b); sqInt signalSemaphoreWithIndex(sqInt semaIndex); sqInt success(sqInt aBoolean); @@ -144,17 +147,29 @@ sqInt copyBitsFromtoat(sqInt leftX, sqInt rightX, sqInt yValue); /* InterpreterProxy methodsFor: 'FFI support' */ -sqInt classExternalAddress(void); +sqInt classExternalAddress(void); /* Old Squeak FFI */ sqInt classExternalData(void); sqInt classExternalFunction(void); sqInt classExternalLibrary(void); sqInt classExternalStructure(void); +sqInt classAlien(void); /* Newsqueak FFI */ +sqInt classUnsafeAlien(void); /* Newsqueak FFI */ +sqInt getStackPointer(void); /* Newsqueak FFI */ +sqInt sendInvokeCallbackStackRegistersJmpbuf(sqInt thunkPtrAsInt, sqInt stackPtrAsInt, sqInt regsPtrAsInt, sqInt jmpBufPtrAsInt); /* Newsqueak FFI */ +sqInt reestablishContextPriorToCallback(sqInt callbackContext); /* Newsqueak FFI */ sqInt ioLoadModuleOfLength(sqInt moduleNameIndex, sqInt moduleNameLength); sqInt ioLoadSymbolOfLengthFromModule(sqInt functionNameIndex, sqInt functionNameLength, sqInt moduleHandle); sqInt isInMemory(sqInt address); void *ioLoadFunctionFrom(char *fnName, char *modName); + +/* Proxy declarations for v1.8 */ +sqInt callbackEnter(sqInt *callbackID); +sqInt callbackLeave(sqInt callbackID); +sqInt addGCRoot(sqInt *varLoc); +sqInt removeGCRoot(sqInt *varLoc); + struct VirtualMachine *VM = NULL; static sqInt majorVersion(void) { @@ -325,16 +340,36 @@ #endif #if VM_PROXY_MINOR > 5 + VM->isArray = isArray; VM->forceInterruptCheck = forceInterruptCheck; + #endif #if VM_PROXY_MINOR > 6 + VM->fetchLong32ofObject = fetchLong32ofObject; VM->getThisSessionID = getThisSessionID; VM->ioFilenamefromStringofLengthresolveAliases = ioFilenamefromStringofLengthresolveAliases; VM->vmEndianness = vmEndianness; + #endif +#if VM_PROXY_MINOR > 7 + + VM->internalIsImmutable = internalIsImmutable; + VM->internalIsMutable = internalIsMutable; + VM->primitiveFailFor = primitiveFailFor; + VM->classAlien = classAlien; + VM->getStackPointer = (sqInt *(*)(void))getStackPointer; + VM->sendInvokeCallbackStackRegistersJmpbuf = sendInvokeCallbackStackRegistersJmpbuf; + VM->reestablishContextPriorToCallback = reestablishContextPriorToCallback; + VM->classUnsafeAlien = classUnsafeAlien; + VM->callbackEnter = callbackEnter; + VM->callbackLeave = callbackLeave; + VM->addGCRoot = addGCRoot; + VM->removeGCRoot = removeGCRoot; + +#endif return VM; } Modified: trunk/platforms/Cross/vm/sqVirtualMachine.h =================================================================== --- trunk/platforms/Cross/vm/sqVirtualMachine.h 2010-04-13 18:55:21 UTC (rev 2202) +++ trunk/platforms/Cross/vm/sqVirtualMachine.h 2010-04-25 19:53:47 UTC (rev 2203) @@ -9,11 +9,26 @@ should work with older VMs. */ #ifndef VM_PROXY_MINOR /* Increment the following number if you add functions at the end */ -#define VM_PROXY_MINOR 7 +#define VM_PROXY_MINOR 8 #endif #include "sqMemoryAccess.h" +#if VM_PROXY_MINOR > 7 +# define PrimErrNoErr 0 +# define PrimErrGenericFailure 1 +# define PrimErrBadReceiver 2 +# define PrimErrBadArgument 3 +# define PrimErrBadIndex 4 +# define PrimErrBadNumArgs 5 +# define PrimErrInappropriate 6 +# define PrimErrUnsupported 7 +# define PrimErrNoModification 8 +# define PrimErrNoMemory 9 +# define PrimErrNoCMemory 10 +# define PrimErrNotFound 11 +#endif + typedef sqInt (*CompilerHook)(); struct VirtualMachine* sqGetInterpreterProxy(void); @@ -204,11 +219,52 @@ #if VM_PROXY_MINOR > 6 sqInt (*fetchLong32ofObject)(sqInt fieldFieldIndex, sqInt oop); sqInt (*getThisSessionID)(void); - sqInt (*ioFilenamefromStringofLengthresolveAliases)(char* aCharBuffer, char* filenameIndex, sqInt filenameLength, sqInt resolveFlag); + sqInt (*ioFilenamefromStringofLengthresolveAliases)(char* aCharBuffer, char* filenameIndex, sqInt filenameLength, sqInt resolveFlag); sqInt (*vmEndianness)(void); #endif +#if VM_PROXY_MINOR > 7 + sqInt (*internalIsImmutable)(sqInt oop); + sqInt (*internalIsMutable)(sqInt oop); + sqInt (*primitiveFailFor)(sqInt code); + sqInt (*classAlien)(void); + sqInt *(*getStackPointer)(void); + sqInt (*sendInvokeCallbackStackRegistersJmpbuf)(sqInt thunkPtrAsInt, sqInt stackPtrAsInt, sqInt regsPtrAsInt, sqInt jmpBufPtrAsInt); + sqInt (*reestablishContextPriorToCallback)(sqInt callbackContext); + sqInt (*classUnsafeAlien)(void); + /* New methods for proxy version 1.8 */ + + /* callbackEnter: Re-enter the interpreter loop for a callback. + Arguments: + callbackID: Pointer to a location receiving the callback ID + used in callbackLeave + Returns: True if successful, false otherwise */ + sqInt (*callbackEnter)(sqInt *callbackID); + + /* callbackLeave: Leave the interpreter from a previous callback + Arguments: + callbackID: The ID of the callback received from callbackEnter() + Returns: True if succcessful, false otherwise. */ + sqInt (*callbackLeave)(sqInt callbackID); + + /* addGCRoot: Add a variable location to the garbage collector. + The contents of the variable location will be updated accordingly. + Arguments: + varLoc: Pointer to the variable location + Returns: True if successful, false otherwise. */ + sqInt (*addGCRoot)(sqInt *varLoc); + + /* removeGCRoot: Remove a variable location from the garbage collector. + Arguments: + varLoc: Pointer to the variable location + Returns: True if successful, false otherwise. + */ + sqInt (*removeGCRoot)(sqInt *varLoc); +#endif +#if VM_PROXY_MINOR > 8 +#endif + } VirtualMachine; #endif /* _SqueakVM_H */

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ConfigurationOfVMMaker updated
by Torsten Bergmann 26 May '10

26 May '10

I've updated the newest development version 1.4 of ConfigurationOfVMMaker so it loads well in latest Squeak 4.1., Squeak trunk, Pharo 1.0 and Pharo 1.1. and uses the latest packages available. Tested on all four platforms. Note that version 1.4 is still blessed with #development in the Metacello spec. What is new =========== - world menu registration works also in Pharo 1.1. - switch to the new SqS/FreetypePlugin for the Squeak part (see Squeak bug 7521) - include latest packages available for VM building For Squeak evaluate: ---------------------------------------------------------------------- Installer squeaksource project: 'MetacelloRepository'; install: 'ConfigurationOfVMMaker'. ((Smalltalk at: #ConfigurationOfVMMaker) project version: '1.4') load ---------------------------------------------------------------------- For Pharo evaluate: ---------------------------------------------------------------------- Gofer new squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfVMMaker'; load. ((Smalltalk at: #ConfigurationOfVMMaker) project version: '1.4') load ---------------------------------------------------------------------- Always remember that Metacello allows you to load newest packages (if they appear) by loading the baseline. Here you can use: ((Smalltalk at: #ConfigurationOfVMMaker) project version: '1.4-baseline') load What is open ============ VMMaker still has - #fixTemps - deprecated #findLastOccuranceOfString: vs. findLastOccurenceOfString: - ... that could be cleaned up if all VM Builders switch to the latest Squeak and Pharo releases. We should really move forward here! Does anyone still use old Squeak 3.6/3.8 to build the VM? What do you think? Thx T. -- GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01

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VM Maker: VMMaker-dtl.176.mcz
by squeak-dev-noreply＠lists.squeakfoundation.org 26 May '10

26 May '10

Dave Lewis uploaded a new version of VMMaker to project VM Maker: http://www.squeaksource.com/VMMaker/VMMaker-dtl.176.mcz ==================== Summary ==================== Name: VMMaker-dtl.176 Author: dtl Time: 25 May 2010, 9:26:24 am UUID: 95c6cda2-9251-46b4-9e8c-421c6c911f70 Ancestors: VMMaker-dtl.175 Add menu registration for Pharo contributed by Torsten Bergmann. Date: Tue, 25 May 2010 19:15:25 +0200 From: "Torsten Bergmann" <astares(a)gmx.de> Subject: VMMakerTool menu registration also for Pharo 1.1. To: vm-dev(a)lists.squeakfoundation.org, pharo-project(a)lists.gforge.inria.fr Hi, since world menu registration has changed from Pharo 1.0 to 1.1 (Pharo now uses Pragmas) loading the VMMakerTool throws a deprecated warning during world menu registration in class side #initialize. Attached is a changeset with a fix so that world menu registration should work in Squeak 4.1., Pharo 1.0 and Pharo 1.1. Would be nice if it could be incorporated. Unfortunately I have no write access on squeaksource/VMMaker. We can then update the ConfigurationOfVMMaker too. Thx T. [-- Attachment #2: VMMakerMenueRegistration.1.cs --] =============== Diff against VMMaker-dtl.175 =============== Item was changed: ----- Method: VMMakerTool class>>unload (in category 'unloading') ----- unload + Smalltalk at: #TheWorldMenu ifPresent: [ :class | + class class methodDict at: #unregisterOpenCommandWithReceiver: ifPresent: [ :method | + (method sendsSelector: #deprecated:) + ifFalse: [ class unregisterOpenCommandWithReceiver: self ] ] ]! - - TheWorldMenu unregisterOpenCommandWithReceiver: self! Item was added: + ----- Method: VMMakerTool class>>menuCommandOn: (in category 'world menu') ----- + menuCommandOn: aBuilder + <worldMenu> + (aBuilder item: #'VMMaker') + parent: #Tools; + action:[self openInWorld]! Item was changed: ----- Method: VMMakerTool class>>initialize (in category 'instance creation') ----- initialize + Smalltalk at: #TheWorldMenu ifPresent: [ :class | + class class methodDict at: #registerOpenCommand: ifPresent: [ :method | + (method sendsSelector: #deprecated:) + ifFalse: [ class registerOpenCommand: (Array with: 'VMMaker' with: (Array with: self with: #openInWorld)) ] ] ]! - (TheWorldMenu respondsTo: #registerOpenCommand:) - - ifTrue: [TheWorldMenu registerOpenCommand: {'VMMaker'. {self. #openInWorld}. 'The VM making tool'}].!

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VM Maker: VMMaker-dtl.175.mcz
by squeak-dev-noreply＠lists.squeakfoundation.org 26 May '10

26 May '10

Dave Lewis uploaded a new version of VMMaker to project VM Maker: http://www.squeaksource.com/VMMaker/VMMaker-dtl.175.mcz ==================== Summary ==================== Name: VMMaker-dtl.175 Author: dtl Time: 25 May 2010, 8:01:19 am UUID: e948f35c-c90f-44e1-8f83-29db7c31d3b3 Ancestors: VMMaker-dtl.174 VMMaker 4.2.2 Reference Mantis 7473: VM changes for better finalization support Add Igor's VM changes to support better finalization (weak-finalizers-VM.1.cs merged with Alien support updates). Expand special object array with slots needed for Alien as well as for new finalization support. The new entries in ObjectMemory class>>initializeSpecialObjectIndices are: SelectorAttemptToAssign := 50. "PrimErrTableIndex := 51. in Interpreter class>>initializePrimitiveErrorCodes" ClassAlien := 52. InvokeCallbackSelector := 53. ClassUnsafeAlien := 54. ClassWeakFinalizer := 55 =============== Diff against VMMaker-dtl.174 =============== Item was added: + ----- Method: ObjectMemory>>weakFinalizerCheck: (in category 'finalization') ----- + weakFinalizerCheck: oop + "Our oop has at least 2 non-weak fixed slots (this is assured before entering this method, in + #finalizeReference:. + We are assuming that if its first non-weak field is an instance of WeakFinalizer class, + then we should add this oop to that list, by storing it to list's first field and + also, updating the oop's 2nd fixed slot to point to the value which we overridden: + + list := oop instVarAt: 1. + list class == WeakFinalizer ifTrue: [ + first := list instVarAt: 1. + oop instVarAt: 2 put: first. + list instVarAt: 1 put: oop ] " + + | listOop listItemOop | + self inline: true. + + listOop := self fetchPointer: 0 ofObject: oop. + (self fetchClassOf: listOop) == (self splObj: ClassWeakFinalizer) ifTrue: [ + listItemOop := self fetchPointer: 0 ofObject: listOop. + self storePointer: 1 ofObject: oop withValue: listItemOop. + self storePointer: 0 ofObject: listOop withValue: oop. + ]. + ! Item was changed: (excessive method size, no diff calculated) Item was changed: ----- Method: ObjectMemory>>finalizeReference: (in category 'finalization') ----- finalizeReference: oop "During sweep phase we have encountered a weak reference. Check if its object has gone away (or is about to) and if so, signal a semaphore. " "Do *not* inline this in sweepPhase - it is quite an unlikely case to run into a weak reference" + | weakOop oopGone chunk firstField lastField nonWeakCnt | - | weakOop oopGone chunk firstField lastField | self inline: false. self var: #oop type: 'usqInt'. self var: #weakOop type: 'usqInt'. + nonWeakCnt := self nonWeakFieldsOf: oop. + firstField := self baseHeaderSize + (nonWeakCnt << self shiftForWord). - firstField := self baseHeaderSize + ((self nonWeakFieldsOf: oop) << self shiftForWord). lastField := self lastPointerOf: oop. firstField to: lastField by: self bytesPerWord do: [:i | weakOop := self longAt: oop + i. "ar 1/18/2005: Added oop < youngStart test to make sure we're not testing objects in non-GCable region. This could lead to a forward reference in old space with the oop pointed to not being marked and thus treated as free." (weakOop == nilObj or: [(self isIntegerObject: weakOop) or:[weakOop < youngStart]]) ifFalse: ["Check if the object is being collected. If the weak reference points * backward: check if the weakOops chunk is free * forward: check if the weakOoop has been marked by GC" weakOop < oop ifTrue: [chunk := self chunkFromOop: weakOop. oopGone := ((self longAt: chunk) bitAnd: TypeMask) = HeaderTypeFree] ifFalse: [oopGone := ((self baseHeader: weakOop) bitAnd: self markBit) = 0]. oopGone ifTrue: ["Store nil in the pointer and signal the interpreter " self longAt: oop + i put: nilObj. + nonWeakCnt >= 2 ifTrue: [ self weakFinalizerCheck: oop ]. self signalFinalization: oop]]]! Item was changed: ----- Method: ObjectMemory class>>initializeSpecialObjectIndices (in category 'initialization') ----- initializeSpecialObjectIndices "Initialize indices into specialObjects array." NilObject := 0. FalseObject := 1. TrueObject := 2. SchedulerAssociation := 3. ClassBitmap := 4. ClassInteger := 5. ClassString := 6. ClassArray := 7. "SmalltalkDictionary := 8." "Do not delete!!" ClassFloat := 9. ClassMethodContext := 10. ClassBlockContext := 11. ClassPoint := 12. ClassLargePositiveInteger := 13. TheDisplay := 14. ClassMessage := 15. ClassCompiledMethod := 16. TheLowSpaceSemaphore := 17. ClassSemaphore := 18. ClassCharacter := 19. SelectorDoesNotUnderstand := 20. SelectorCannotReturn := 21. ProcessSignalingLowSpace := 22. "was TheInputSemaphore" SpecialSelectors := 23. CharacterTable := 24. SelectorMustBeBoolean := 25. ClassByteArray := 26. ClassProcess := 27. CompactClasses := 28. TheTimerSemaphore := 29. TheInterruptSemaphore := 30. SelectorCannotInterpret := 34. "Was MethodContextProto := 35." ClassBlockClosure := 36. "Was BlockContextProto := 37." ExternalObjectsArray := 38. ClassPseudoContext := 39. ClassTranslatedMethod := 40. TheFinalizationSemaphore := 41. ClassLargeNegativeInteger := 42. ClassExternalAddress := 43. ClassExternalStructure := 44. ClassExternalData := 45. ClassExternalFunction := 46. ClassExternalLibrary := 47. SelectorAboutToReturn := 48. SelectorRunWithIn := 49. + SelectorAttemptToAssign := 50. + + "PrimErrTableIndex := 51. in Interpreter class>>initializePrimitiveErrorCodes" + + ClassAlien := 52. + InvokeCallbackSelector := 53. + ClassUnsafeAlien := 54. + + ClassWeakFinalizer := 55 ! Item was changed: ----- Method: VMMaker class>>versionString (in category 'version testing') ----- versionString "VMMaker versionString" + ^'4.2.2'! - ^'4.2.1'!

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VMMakerTool menu registration also for Pharo 1.1.
by Torsten Bergmann 26 May '10

26 May '10

Hi, since world menu registration has changed from Pharo 1.0 to 1.1 (Pharo now uses Pragmas) loading the VMMakerTool throws a deprecated warning during world menu registration in class side #initialize. Attached is a changeset with a fix so that world menu registration should work in Squeak 4.1., Pharo 1.0 and Pharo 1.1. Would be nice if it could be incorporated. Unfortunately I have no write access on squeaksource/VMMaker. We can then update the ConfigurationOfVMMaker too. Thx T. -- GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01

2 2

Special objects array - sometimes everybody cannot be special
by David T. Lewis 25 May '10

25 May '10

We have some contention for slots in the special objects array. The Alien package lays claim to slots 50 - 54, and Igor's improved finalization would like to use slot 50. The Alien claim predates the Finalizer claim (albeit only through an *Extentions in Alien-VMMaker-Support), and there may already be people running VMs that rely on these special object assignments. On the other hand, finalization is part of the core system, so it would have been nice to put ClassWeakFinalizer at slot 50, and the optional Alien assignments at 51 - 55. Would anyone object to the following allocation of slots in the special objects array? This would leave Alien mostly unaffected, but would require Igor's finalization improvements to put WeakFinalizer at position 55 in the special objects array, and it would require that the Alien override be pulled into the VMMaker package such that all VMs would have the Alien assignments in the special objects array (albeit unused in many cases). And recreateSpecialObjectsArray would need updates to match of course. SelectorAttemptToAssign := 50. "PrimErrTableIndex := 51. in Interpreter class>>initializePrimitiveErrorCodes" ClassAlien := 52. InvokeCallbackSelector := 53. ClassUnsafeAlien := 54. ClassWeakFinalizer := 55 I seem to recall some discussion of a more flexible special objects registry, although I can't find it right now. Pointers welcome. Dave

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Points of View - a tribute to Alan Kay
by Ian Piumarta 21 May '10

21 May '10

Folks, I am pleased to announce the latest publication from Viewpoints Research: Points of View -- a tribute to Alan Kay. This book, edited by Kim Rose and myself, is a collection of previously-unpublished essays written to celebrate Alan's 70th birthday. Twenty-nine luminaries from diverse disciplines contributed original material for this book, which was presented to Alan during a celebratory lunch earlier this week. A limited first edition of 100 copies has been printed of which 50 are being offered for a $125 donation to Viewpoints. Full details can be found here: http://vpri.org/pov Enjoy! Ian

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Vm-dev May 2010