[Scummvm-devel] RE : Re: RE : Re: Memory/speed loss in scumm engine

[Neil Millstone]

I did the following builds

NDS Size   SVN Revision
2434624    30474
2434624    30473
1591872    30472
1591872    30470
1591872    30466
1591872    30459
1591872    30445
1591872    30417
1591872    30361

So, the problem must have been introduced in revision 30473.  This is a 
seemingly minor change to the build system.  The build system on the DS 
port is odd, having had some hacks to work around some bugs in Devkitpro 
in the past, and my knowledge of makefiles is pretty poor.  But looking 
at the diff, I changed all occurances of the following:

.cpp.o:

to:

%.o:%.cpp

And all my problems went away!  I really don't know why, but that seems 
to have fixed both the big binary issue and the speed issues.

- Neil





Bertrand Augereau wrote:
> Oh ok, didn't get that it was a sure thing the bloat
> was in the common code.
> Maybe somebody could try to see if the bloat impacts
> another platform between these 2 revisions, it would
> make the variation easier to track.
> I can probably do it tonight (in 10/12 hours), if
> nobody does it before.
>
> PS : Well, I have memory problems at work also on
> some-PowerPC-based-nextgen-gaming-platforms so I'm
> getting used to it ;)
> Hope you do well with your project!
>
> Bertrand
> --- Neil Millstone <neil at millstone.demon.co.uk> a
> écrit :
>
>   
>> Hi Bertrand,
>>
>> All the builds I described in my mail used the exact
>> same backends/ds 
>> and fs/ds folder, it is the rest of the codebase I
>> updated, so the 
>> problem definately lies in the main codebase and
>> doesn't have anything 
>> to do with the backend, or at least the main
>> codebase triggers the 
>> problem in the backend.
>>
>> Although yes, we really should submit a bug report
>> for that compiler 
>> bug.  I can probably find your mail where you
>> tracked it down, 
>> somewhere.  I tried thumb mode with the latest
>> Devkitpro and it still 
>> has the same problems.
>>
>> The hard part is going to be narrowing down a simple
>> example of it.
>>
>> Anyway, I hope  things are going well for you,
>>
>> - Neil
>>     
>
>
>
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