Path: chuka.playstation.co.uk!scea!greg_labrec@interactive.sony.com
From: Pradip Fatehpuria <pradip_fatehpuria@interactive.sony.com>
Newsgroups: scea.yaroze.beginners
Subject: Re: memory
Date: Mon, 25 Aug 1997 17:16:05 -0700
Organization: Sony Computer Entertainment America
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djinn666 wrote:
> 
> hi,
> 
> i was just wondering if anyone could explain to me how memory allocation
> for the ny works. i've been looking at sample batch- files and i see the
> programmer d-loading tim,main,...ect to memory locations such as
> "0x8000....ect". how do they know the size of their file?, how do they
> know where to d-load it to? can some one please help. i've read the
> whole userguid and still cant grasp the concept.
> 
> -Djinn

One of the main reasons, why people load data files like the models,
textures and sound data directly at the pre-determined location is to
avoid loading the same everytime you make changes to your code.  So
while debugging your code you can simply reload just the executable
which turns out to be a faster proposition.

Once you reset the PlayStation, you will have to reload the data once
again.

Another thing to note is that the run-time library and other necessary
data structures take first 0x90000 bytes of main memory.  So, I like to
load my data starting from 0x90000 memory address and the executable is
set to load after the data, so that rest of the memory is available for
the bss section and the heap.

Pradip K Fatehpuria