Re: [fpc-pascal] [OT] Pascal compiler for embedded platforms
Thanks, i am waiting to hear back regarding some suggest changes that were suggest in the debugging section that Michael Ring was working on a while ago, i want to write some code in lazarus for my ARM Cortex M3 and debug it in lazarus ( via gdb using gdb from openOCD) so i can see whats going on , just as a start because its going to take me a while to get my application running etc. Justin -Original Message- From: Martin Schreiber Sent: Tuesday, March 19, 2013 5:31 PM To: fpc-pascal@lists.freepascal.org Subject: Re: [fpc-pascal] [OT] Pascal compiler for embedded platforms On Tuesday 19 March 2013 00:05:39 Justin Smyth wrote: Does that allow debugging via Lazarus ? Currently I use MSEide in order to develop a M3 based based project (Energy Micro Tiny Gecko). Although with gcc but FPC could be used too I assume. Debugging connection is a Segger J-Link provided by the EFM32-TG-STK3300 starter kit, works very well. Martin ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] [OT] Pascal compiler for embedded platforms
On Tuesday 19 March 2013 08:11:49 Justin Smyth wrote: > Thanks, i am waiting to hear back regarding some suggest changes that were > suggest in the debugging section that Michael Ring was working on a while > ago, i want to write some code in lazarus for my ARM Cortex M3 and debug it > in lazarus ( via gdb using gdb from openOCD) so i can see whats going on , > just as a start because its going to take me a while to get my application > running etc. > Just in case you don't know, MSEide+MSEgui is an alternative to Lazarus especially made with development of embedded projects in mind: http://sourceforge.net/projects/mseide-msegui/ Martin ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Re: Linked list constant
> Really? No gain in the beloved readability? Not for me, I always initialize code in "executable" section, keeping the declaration section clean. That's what "readable" to me. > And it seems to me a "const" should not be changed by code. ;-) Even if it's allowed, you're declaring typed constant, which is not a real constant and has the same effect as initialized variable (e.g. you can change the value later on). It only differs (from initialized var) when the assignment happens inside a routine. -- View this message in context: http://free-pascal-general.1045716.n5.nabble.com/Linked-list-constant-tp5713665p5713698.html Sent from the Free Pascal - General mailing list archive at Nabble.com. ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] Re: Linked list constant
On Tuesday 19 March 2013 09:06:31 leledumbo wrote:
> > Really? No gain in the beloved readability?
>
> Not for me, I always initialize code in "executable" section, keeping the
> declaration section clean. That's what "readable" to me.
>
> > And it seems to me a "const" should not be changed by code. ;-)
>
> Even if it's allowed, you're declaring typed constant, which is not a real
> constant and has the same effect as initialized variable (e.g. you can
> change the value later on). It only differs (from initialized var) when the
> assignment happens inside a routine.
>
Delphi has {$J-} in order to set them readonly.
Another problem with Free Pascal in this context is that it is AFAIK not
possible to define forward types which could be used as parameters for
procedures used as procedure variables in later type definitions.
Martin
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Re: [fpc-pascal] Re: Linked list constant
Am 19.03.2013 09:27, schrieb Martin Schreiber:
On Tuesday 19 March 2013 09:06:31 leledumbo wrote:
Really? No gain in the beloved readability?
Not for me, I always initialize code in "executable" section, keeping the
declaration section clean. That's what "readable" to me.
And it seems to me a "const" should not be changed by code. ;-)
Even if it's allowed, you're declaring typed constant, which is not a real
constant and has the same effect as initialized variable (e.g. you can
change the value later on). It only differs (from initialized var) when the
assignment happens inside a routine.
Delphi has {$J-} in order to set them readonly.
Do you know whether Delphi has by default $J+ or $J-?
Another problem with Free Pascal in this context is that it is AFAIK not
possible to define forward types which could be used as parameters for
procedures used as procedure variables in later type definitions.
In case of records, classes and objects you can work around this with
nested types (Note: for records the modeswitch advancedrecords is
required in non-Delphi modes):
=== code begin ===
type
TMyRecord = record
public type
TTest = procedure(aRec: TMyRecord);
public var
Test: TTest;
end;
=== code end ===
And I just noticed: this example does not work in Delphi...
Regards,
Sven
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Re: [fpc-pascal] Re: Linked list constant
On Tuesday 19 March 2013 09:38:43 Sven Barth wrote:
> >
> > Delphi has {$J-} in order to set them readonly.
>
> Do you know whether Delphi has by default $J+ or $J-?
>
{$J+} in Delphi 7.
> > Another problem with Free Pascal in this context is that it is AFAIK not
> > possible to define forward types which could be used as parameters for
> > procedures used as procedure variables in later type definitions.
>
> In case of records, classes and objects you can work around this with
> nested types (Note: for records the modeswitch advancedrecords is
> required in non-Delphi modes):
>
> === code begin ===
>
> type
>TMyRecord = record
>public type
> TTest = procedure(aRec: TMyRecord);
>public var
> Test: TTest;
>end;
>
> === code end ===
>
Ouch! ;-)
Martin
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Re: [fpc-pascal] Re: Linked list constant
Am 19.03.2013 09:56, schrieb Martin Schreiber:
On Tuesday 19 March 2013 09:38:43 Sven Barth wrote:
Delphi has {$J-} in order to set them readonly.
Do you know whether Delphi has by default $J+ or $J-?
{$J+} in Delphi 7.
Then we don't need to change the default :)
Regards,
Sven
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[fpc-pascal] Lazarus 1.0.8 Release
The Lazarus team is glad to announce the release of Lazarus 1.0.8. This is a bug fix release, built with the current fpc 2.6.2. The previous release 1.0.6 was built with 2.6.0. Here is the list of changes for Lazarus and Free Pascal: http://wiki.lazarus.freepascal.org/Lazarus_1.0_fixes_branch#Fixes_for_1.0.8 http://wiki.lazarus.freepascal.org/User_Changes_2.6.2 The release is available for download at SourceForge: http://sourceforge.net/projects/lazarus/files/ Choose your CPU, OS, distro and then the "Lazarus 1.0.8" directory. Minimum requirements: Windows: 98, 2k, XP, Vista, 7, 32 or 64bit FreeBSD/Linux: gtk 2.8 or qt4.5, 32 or 64bit Mac OS X: 10.5, LCL only 32bit, non LCL apps can be 64bit The svn tag is http://svn.freepascal.org/svn/lazarus/tags/lazarus_1_0_8 For people who are blocked by SF, the Lazarus releases from SourceForge are mirrored at: ftp://freepascal.dfmk.hu/pub/lazarus/releases/ and later at (after some time for synchronization) http://michael-ep3.physik.uni-halle.de/Lazarus/releases/ and http://mirrors.iwi.me/lazarus/ Mattias ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Re: a proposal about "with" syntax
On 18/03/2013 03:11, Paul Ishenin wrote: > 18.03.13, 9:27, Xiangrong Fang пишет: >> I am sorry I didn't follow this thread although I am the "OP" :-). If >> I understand correct, I would suggest NOT introduce the "absolute" >> keyword, instead, make it ALWAYS absolute. i.e.: >> >> with a = SomeObject, b = SomeRecord do begin >>... ... >> end; >> >> Both a and b are "reference" to the object or record, IMO there seems no >> need to do assignment in the with syntax. Thus, I suggest use = instead >> of := > > '=' can't be used because it can be a part of expression. There is no big > difference between > with (a = SomeObject) do > and > with a = SomeObject do > > After more thinking I see that ':=' as well as absolute keyword are also bad > because they will complicate the parser (although it is possible to use > them). Parser will need to read the first token and check if it is an > identifier, read second token and compare with ':=' (or 'absolute') and if it > is not ':=' (or 'absolute') return to expression parse. > > At the same time we will not complicate the parser if we place alias > identifier after the with expression like: > > with expression1, expression2 => alias2, expression3, expression4 => alias4 do > > begin > > end; > > Where '=>' is some token which can't be used in expressions. > For example '@' ? e.g. with alias1@SomeLongObject, alias2@SomeOtherLongObject, ... do rationale: it's sufficiently different, and as for its nominal usage, it does similar thing. ? > Best regards, > Paul Ishenin > Lukasz ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] a proposal about "with" syntax
Al 18/03/13 04:11, En/na Paul Ishenin ha escrit: > '=' can't be used because it can be a part of expression. There is no > big difference between > with (a = SomeObject) do > and > with a = SomeObject do But since "with" is only for records/objects/classes there's no possible confusion (the result of the expression being a boolean). Bye -- Luca ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Amazon S3
Hi, Did someone already worked using Amazon S3 and FreePascal, maybe using Synapse? Is there a project open source for it? Thanks, Marcos Douglas ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
[fpc-pascal] Brook and Free Pascal 2.6.2 / Lazarus 1.0.8
Hello, Now, it's possible to compile Brook in current released Free Pascal and Lazarus, however, not yet released the new release of Brook, however you can download a snapshot here: https://github.com/silvioprog/brookframework/archive/master.zip Or, for those who follow Brook via GIT, please update your copy to get the fixes implemented today. Link to download the Free Pascal and Lazarus current: http://sourceforge.net/projects/lazarus Enjoy! -- Silvio Clécio My public projects - github.com/silvioprog ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
