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article.gifIII. Palm Freeware - 7. LaFac

LaFac

Copyright (C) 2004-2006 Laurent Duveau



LaFac

  • Version : 1.2 (November 2006)
  • Freeware for :
  • Language :
  • Screen :
  • Downloadable File : lafac.zip (371 Kb)

LaFac stands for aldweb's LAnguage FACtory for Palm.
LaFac is a development tool which works directly from your Palm device.
LaFac comes with a p-code compiler for all 4 available development languages (one loop p-code compilers), a p-code runtime engine, a debugger, and a Stand-alone application builder.
LaFac currently comes with 4 inbuilt development languages:
1. Hellish & Esoteric Language for Palm = HELP (my invention)
2. micro BASic = µBAS
3. micro PAScal = µPAS
4. micro C = µC


Updates Description

v1.2 (11/17/06)
- FIX: if the last line of a source code was a comment without a final line feed, compilation would sometimes return a syntax error
- FIX: the number shown in the Runtime Option (Break every n instructions) would sometimes be filled with strange random characters instead of a number although the value hold by the application was OK
- ADD: High Resolution icons; this is a very kind contribution from Mike Featherstone (better late than never, Mike sent me these nice icons more than one year ago!); Thank you Mike
- ADD: various source code optimisations in the µBAS, µPAS and µC compilers
- ADD: explanations about the 2nd and 3rd parameters for MID$ (µBAS), SubString (µPAS) and SubStr (µC) functions in this help file (3rd parameter is endPosition and not NumberOfCharacters as it is more often the case for these languages)
- ADD: some information in this Help file to explain that LaFac was a proof of concept for a much more sophisticated compiler, iziBasic, which I developed afterwards
- Changed Donation URL (even though nobody ever donated for this freeware...)

v1.1 (07/22/04)
- FIX: if the user did not make a selection in popup list then a bad name string or an empty string was displayed in the popup instead of the previous selected item
- FIX: LaFac did not handle correctly instructions line > 63 characters in µBAS, µPAS and µC
- FIX: the data entry field could stay stuck in Numeric entry when asking for Text entry
- DEL: removed the CallCS / PeekCS / PokeCS / PeekNS / PokeNS / PeekTS / PokeTS functions which were of very little interest in LaFac
- ADD: LaFac can now work with the new Memos application introduced in PalmOS 5.2.8?, PMem/DATA creator/type (thanks Farcaller)
- ADD: Time format is now HH:mm:ss (was HH:mm)
- ADD: changed IntToString(popN) to RealToString(popN,number of decimals)
- ADD: various source code optimisations in the compilers

1.0 (06/05/04)
- initial release

Creation date : 05/06/2004 @ 23:20
Last update : 30/04/2007 @ 19:24
Category : III. Palm Freeware


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react.gifReactions to this article


Reaction #10 

by aldweb 30/01/2008 @ 08:01

Hello Mark,

Since LaFac is a one simple pass compiler, all GOTO statements must refer to a [jumpmark] that is defined ahead in the program.
So you should write your source code this way:

GOTIT:
Print "OOPS, GOT IT!"
END

BEGIN
PRINT "Try to stop this programm!"
START:
INPUT A
IF A=666 then GOTO GOTIT
GOTO START


Cheers,
aldweb

Reaction #9 

by Mark Wagner 29/01/2008 @ 20:45

Dear Laurent,

this might be a stupid request - but I am just stuck with what i know. I am trying to set a god old "If a=x then GOTO ...[jumpmark]"-Command using LaFac - Micro Basic. It does not seem to work eather way I try. (compilation error). Is there a chart on your site or anywhere on the net, that explains all the commands that work on the Basic Version that you used.

SIMPLE Example for what I am trying to do:

BEGIN
PRINT "Try to stop this programm!"
START:
INPUT A
IF A=666 then GOTO GOTIT
GOTO START

GOTIT:
Print "OOPS, GOT IT!"
END

THANX A LOT. Don't hesitate, to simply send Your Answer to my eMail, if thats fine with you.

Great Programm man!

Reaction #8 

by aldweb 21/01/2006 @ 15:34

Hello Jared,

You must have hundreds of memo records to get a time lag when loading LaFac.

For graphics and sound support, this is not planned at all in LaFac. LaFac was my proof of concept for a runtime compiler, and the enhanced version, focused on the BASIC language only, with graphics and sound support (and many, many other things!), is iziBasic

Cheers,
aldweb

Reaction #7 

by Jared 17/01/2006 @ 22:05

LOVE IT. It would be nice if you could add an option-"not scan on start"-, because its annoying to have to wait. Also-any graphics, sound support?

Reaction #6 

by Werner 24/07/2004 @ 15:19

Apologies!

I have to correct my first message.
Actually the program does *not* crash!
It just needs about 30 seconds to scan all my memos.
Meanwhile it only *seems* to have crashed - 30 seconds subjectively is quite a long time!

Werner
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