Path: chuka.playstation.co.uk!news
From: developer support <dev_support@interactive.sony.com>
Newsgroups: scee.yaroze.programming.3d_graphics
Subject: Re: Application Environment Memory Map.
Date: Tue, 15 Jul 1997 10:25:12 +0000
Organization: PlayStation Net Yaroze (SCEE)
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Message-ID: <33CB5008.6234@interactive.sony.com>
References: <33C8BE05.61BA@cobradev.demon.co.uk>
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colin adams wrote:
> 
> I am having problems using certain Regions of
> Memory in my project.
> 
> I am using memory regions-: ku 0x00090000-0x001fff00,
> ko 0x80090000-0x801fff00 successfully & every thing works fine.
> 
> The problem occurs when loading data into k1 0xa0090000-0xa01fff00
> It appears that region ku is overwritten when loading data into this
> memory region.
> 
> I ran some tests Using k1 without data in ku and it seems that all is
> OK.
> but not when using ku & k1 together (strange).
> 
> I am using Gnu for compiling & Siocons for downloading. Any help would
> be appreciated.
> 
> BTW thanks Stuart for your help with sound. budda, budda another one
> bites
> the dust. Need i say more? You can have a private viewing of the project
> but
> I don't want to put it on the site yet, as the GFX are pretty crap at
> the moment,
> But a man is working on it.
> 
> --
> Cobra

I think your getting a bit confused. 0x00090000 - 0x001fffff, 0x80090000 - 0x801fffff, 
0xa0090000 - 0xa01fffff, are all mapped to the same physical memory. The only differences are 
with the caching. 0x00... and 0x80... are both cached and 0xa0... is not.

Stuart