Path: chuka.playstation.co.uk!scea!peter_alau@playstation.sony.com
From: "Brian Weed" <bweed@vipah.com>
Newsgroups: scea.yaroze.programming.codewarrior
Subject: NetYaroze vs Profession Developers kit
Date: Tue, 26 Oct 1999 15:14:56 -0400
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I am using Codewarrior on the PC with NetYaroze.

What are the differences between the NetYaroze and the real Playstation
developers kit?

The docs for NetYaroze says that although it has 2Mb of RAM, you can't use
the 1st 500k or so, because it is "reserved".  Does the real Playstation
have this limitation.

Is there a way to get a pointer to the video memory?

Is the Sound API the same on the professional developers kit?
The sound API on NetYaroze is very ugly.
How do I determine if a VAG is finished playing?
How do I stop a VAG that is currently playing?
How do I pause/resume a currently playing VAG?

Why doesn't MWOpen support filenames with a full path?

The follwing function will fail on the NetYaroze with the this error:
"Address error on memory Load/Instruction Fetch"

/////////////////
void TestBug(void)
{
     union {
         char *p8;
         unsigned short *p16;
     } u;

     char *pBuf;
     unsigned short n;
     int i;

     if ((pBuf = (char *)malloc(40)) != NULL) {

         u.p8 = pBuf;

         for (i = 0; i < 38; i++) {

             n = *u.p16;  // Crashes when p16 is odd
             u.p8++;
         }

         free(pBuf);
     }
}
/////////////////////////

Does the professional developers kit have this same problem?

If anyone would like to test this code for me Codewarrior for Mac, and GNU,
that would be great, so that I could see if it fails on all development
variations.

I belive this problem is due to the fact that in MIPS R3000 the load
instruction from a memory address into a register, the memory address must
be evenly divisible by 4.
However, I expected Codewarrior to generate the correct code to compensate
for this.

Why does the CodeWarrior debugger suck so badly?  It almost never updates
variables in the watch window correctly.  And does not allow breakpoints to
be set in the first 100 or so lines of a source file.

Answers to any of these questions is greatly appreciated.

Brian Weed
bweed at vipah dot com