September 2012 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] How to create a basic OS for the Raspberry Pi - VM+Pharo on top?

by StÃ©phane Ducasse

I'm sure that JB would like to try as soon as he is done with his PhD. He bought two raspberry Pi. Stef On Sep 3, 2012, at 9:28 AM, phil(a)highoctane.be wrote: > Check > > http://www.cl.cam.ac.uk/freshers/raspberrypi/tutorials/os/ > > Now, how hard would it be to get a stack VM and an image running on top? > Anyone looking at this kind of stuff in the community? > > Phil >

Sept. 3, 2012

Re: [Pharo-project] Some news about Athens

by StÃ©phane Ducasse

Thanks Igor this is cool to see that you make progress while I fixing administrative tasks :) On Sep 3, 2012, at 4:21 AM, Igor Stasenko wrote: > ah, yes.. i forgot to say: > - no strike fonts for Athens will be supported ever. > > It is simply unproductive to waste time on that. They will never work > correctly, because the format how they stored in image are > premultiplied subpixel 3*32-bit bitmaps. > > And sure thing, Cairo don't have our highly-special blit mode to > render them correctly (not saying that they'll work only for 1:1 pixel > grid match, and only for LCD displays, and if you offset them even by > a fraction of pixel or rotate/scale, i doubt you will be able to read > anything). > > You can draw bitmaps (forms) using Athens.. but they should be a > normal RGBA 32-bit ones. > > > -- > Best regards, > Igor Stasenko. >

Sept. 3, 2012

Re: [Pharo-project] A useful set of Smalltalk-like methods for Objective-C

by Oscar E A CallaÃº

Hi, > I've just scanned the source from the github browser and wonder what is the "SmalltalkExtensions/SmalltalkExtensions" directory [1] ? > > > Francois > > [1]: https://github.com/ocallau/ObjCSmalltalkExtensions/tree/master/SmalltalkExt… > That is actually a useless directory. When I created the project in xCode, it automatically added a target, app delegate, etc. for running the project. So don't care about that, I'll remove that dir later. Cheers.

Sept. 3, 2012

Re: [Pharo-project] [NativeBoost] Question: zero-based or one-based indexes?

by Igor Stasenko

On 3 September 2012 20:09, Marten Feldtmann <marten(a)schrievkrom.de> wrote: > Igor, > > for me it does not matter. I've created my own interface package for all > base types, array access - and all zero-index based - either for > Smalltalk-memory or external memory access. That's good enough for > me and my projects. Now I'm waiting for your base package with all these new > accessor methods. > Yes, i know. But i care about things which people will have by default.. because imagine that each project will have own accessors in byte arrays and so on.. at the end you will end up with dozens of methods doing the same thing.. And so, to prevent that, of course, we need a good common layer, which everyone can use instead of inventing own wheel over and over again. > > Marten > -- Best regards, Igor Stasenko.

Sept. 3, 2012

Re: [Pharo-project] [NativeBoost] Question: zero-based or one-based indexes?

by Igor Stasenko

On 3 September 2012 19:31, Denis Kudriashov <dionisiydk(a)gmail.com> wrote: > Hello > > 2012/9/3 Igor Stasenko <siguctua(a)gmail.com> >> >> just imagine you need to write a code which reads raw integer(s) from >> either byte array(s) >> or external address. >> >> so, you will need to write either: >> >> bytarray nbUInt64AtOffset: 10 put: 20 >> >> or >> >> bytearray nbUInt64At: 10 put: 20. > > > I like explicit objects for arguments. So your examples can be something > like: > > bytearray nbAt: 10 asOffset put: 20 nbUInt64 > bytearray nbAt: 10 asOffset put: 20 nbInt32 > bytearray nbAt: 10 asOffset put: 20 nbFloat > > or > > bytearray nbAt: 1 asIndex put: 20 nbUInt64 > > For this classes like NbArrayOffset, NbArrayIndex and others should be > introduced > the problem with your approach that it will slow down everything , up to the point that it will become useless. :) -- Best regards, Igor Stasenko.

Sept. 3, 2012

Re: [Pharo-project] [NativeBoost] Question: zero-based or one-based indexes?

by Marten Feldtmann

Igor, for me it does not matter. I've created my own interface package for all base types, array access - and all zero-index based - either for Smalltalk-memory or external memory access. That's good enough for me and my projects. Now I'm waiting for your base package with all these new accessor methods. Marten

Sept. 3, 2012

Re: [Pharo-project] [NativeBoost] Question: zero-based or one-based indexes?

by Denis Kudriashov

Hello 2012/9/3 Igor Stasenko <siguctua(a)gmail.com> > just imagine you need to write a code which reads raw integer(s) from > either byte array(s) > or external address. > > so, you will need to write either: > > bytarray nbUInt64AtOffset: 10 put: 20 > > or > > bytearray nbUInt64At: 10 put: 20. > I like explicit objects for arguments. So your examples can be something like: bytearray nbAt: 10 asOffset put: 20 nbUInt64 bytearray nbAt: 10 asOffset put: 20 nbInt32 bytearray nbAt: 10 asOffset put: 20 nbFloat or bytearray nbAt: 1 asIndex put: 20 nbUInt64 For this classes like NbArrayOffset, NbArrayIndex and others should be introduced Best regards, Denis

Sept. 3, 2012

Re: [Pharo-project] [NativeBoost] Question: zero-based or one-based indexes?

by Igor Stasenko

actually, while it is important to have uniformity with those accessors, after introduction of array types, it will be less important.. I plan to do the same as with NBExternalTypeValue.. something like: myArrayType := NBExternalTypeArray ofType: 'int'. myArray := myArrayType new: 10 . "array of 10 ints" myArray at:1 put: 20 myArray at: 2 myArray do: [... ] etc and here there's no longer need to bother whether we use 0-based or 1-based indexes, because it is out of the question: we should use 1-based indexes, because these guys will inherit everything from ArrayedCollection class, and can be used as normal collections. -- Best regards, Igor Stasenko.

Sept. 3, 2012

Re: [Pharo-project] How to create a basic OS for the Raspberry Pi - VM+Pharo on top?

by S Krish

I am sure you should be able to run Tiny Core linux ( vanilla without WM) on Raspberry.. add Pharo ... Pharo + TCL works perfectly fine.. in the meagre runs I have done.. Should be a better WM than what they currently have for TCL.. On Mon, Sep 3, 2012 at 12:58 PM, phil(a)highoctane.be <phil(a)highoctane.be>wrote: > Check > > http://www.cl.cam.ac.uk/freshers/raspberrypi/tutorials/os/ > > Now, how hard would it be to get a stack VM and an image running on top? > Anyone looking at this kind of stuff in the community? > > Phil > >

Sept. 3, 2012

Re: [Pharo-project] [NativeBoost] Question: zero-based or one-based indexes?

by Sean P. DeNigris

Igor Stasenko wrote > > just try to type it youself and listen what you feel :) > Zen and the Art of Pharo Smalltalk -- View this message in context: http://forum.world.st/NativeBoost-Question-zero-based-or-one-based-indexes-… Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

Sept. 3, 2012