Path: chuka.playstation.co.uk!scea!hunt
From: hunt@metrowerks.com (Eric Hunt)
Newsgroups: scea.yaroze.problems.mac
Subject: Re: MAC Problems Running DEMOS
Date: Fri, 25 Apr 1997 10:58:12 -0500
Organization: Metrowerks Corporation
Lines: 47
Message-ID: <hunt-ya02408000R2504971058120001@news.scea.sony.com>
References: <335DCFF4.5A5B@handsontoys.com> <wal-ya02408000R2404971652290001@news.scea.sony.com> <335FDA79.34DD@halcyon.com> <wal-ya02408000R2504970019490001@news.scea.sony.com>
NNTP-Posting-Host: hunt.metrowerks.com
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 8bit
X-Newsreader: Yet Another NewsWatcher 2.4.0

In article <wal-ya02408000R2504970019490001@news.scea.sony.com>,
wal@blarg.net (wayne a. lee) wrote:

> I'm thinking of modifying some of the examples to use the I/O functions to
> download the files from the host, anyway, because the lack of batch
> downloading on the Mac is driving me nuts!

This is exactly what our Playstation engineer recommends as a workaround
until a more full-featured PSComUtil is released.

Here is his note on this particular subject:

Use the HostIO capabilty of the debugger (or PSComUtil) to have the game
download the files that are necessary.


Add the following code to the beginning of the game:

#define DEBUG_IO
#include "MWDebugIO.h"

int loadFile(
in main(), add

...
MWRedirectIO(__MWIO_CDROM)
int status=bload(<filename>,<address>);  // <filename> is the file name or 
                       // a relative path from the excutable
                  // address is the destination hex address for
                  // the file.


-------------------------

That's quick and dirty. However, it doesn't show much status. It might be
better for debugging to use the open/read/close calls and only read part of
the file at a time. Then separate the loads by printf() statements.  At
115K, you'll see a download speed of about 10K per second or so.

Note: The debugger and PSComUtil both recognize the file I/O redirection
commands. SIOCONS does not. Thus, you must use either the debugger or
PSComUtil to run the game.

Thanks,

Eric Hunt
Metrowerks Playstation Tech Support