RE: lua5 palmos port (general 16 bit)

[Benoit Germain <bgermain@...>]

It didn't take any longer as well. It took me longer to reacquaint me with
prc-tools, makefiles and stuff, (as well as getting the debugger to work for
me :-) and actually understanding what had to be done. Comparing my code
base with the original lua distribution, you'll see that the only changes
regard the memory allocation routine and section-splitting.

(archive coming by mail)

-----Message d'origine-----
De : Haemish Graham [mailto:haemish@astraware.com]
Envoyé : mardi 9 septembre 2003 10:18
À : Lua list
Objet : Re: lua5 palmos port (general 16 bit)


Benoit Germain wrote:

>Hi,
>
>I have started this port a while ago, but it is idle for the time being for
>lack of time (and a PC at home :-)
>currently I have a sample test application that compiles, but somehow gives
>incorrect results when compiling factorial.lua. But it's a start. I can
this
>to send whoever is interested though.
>
Hi Benoit.

I am certainly interested in seeing what you have done so far, I read 
your posts with great interest when I started hacking the Lua5 source. 
People may be interested to know that Lua4 seems to exhibit far fewer 
problems when porting to PalmOS. It took a couple of hours persuade a 
few things to compile and split the code into 32k chunks but other than 
that it does indeed just seem to work. I may of course be tempting fate 
saying that as I have not done much testing yet.

Perhaps we can track down the owner of one of the source forge projects 
for PalmOS Lua and make the work public. I assume the authors of Lua 
have no problem with this so long as the original copyright messages 
remain intact, just to be sure I will read through the licence later.

Cheers.

-haemish

>
>-----Message d'origine-----
>De : Haemish Graham [mailto:haemish@astraware.com]
>Envoyé : mardi 9 septembre 2003 01:41
>À : Lua list
>Objet : Re: lua5 palmos port (general 16 bit)
>
>
>Robert Anderberg wrote:
>
>  
>
>>I would suggest the only 'porting' you would need to do would be to put
all
>>    
>>
>
>  
>
>>the source files in one directory along with the lua.c and compile. This 
>>should only take 10 minutes with any ansi C compiler, then you could see
if
>>    
>>
>
>  
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>>it was fast/small enough for your use.
>>
>>    
>>
>Sadly there are various additional factors with a PalmOS port as the 
>memory model is not vanilla. There are other issues too, for example, 
>you have to split the code into 32k sections, this is not hard just 
>tedious:) There also appear to be some slight issues with the hashing 
>mechanisms used in various places when ints are only 16 bits long. 
>Although there has been a port of Lua4 to PalmOS (PLua) there does not 
>seem to be a port of Lua5 to PalmOS, but if you seach the archives of 
>this list for 'PalmOS' you will see some traffic from various attempts. 
>Lua5 certainly does not compile easily for PalmOS, even after you have 
>taught some of the m68k-palmos headers a lesson with a big stick.
>
>Out of interest are any of the platforms you have compiled Lua for 16 bit?
>
>-haemish
>
>
>
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