https://www.lexaloffle.com/bbs/?uid=14742 <p>Here's a tool I did program to investigate the Hardware State Region, It displays all the 64 bytes in the hardware state, you can see whenever you re-run the tool the same data until you reboot. (try also to reset the cart in the browser, it will still show the same data)</p> <p> <table><tr><td> <a href="/bbs/?pid=40750#p"> <img src="/bbs/thumbs/pico40756.png" style="height:256px"></a> </td><td width=10></td><td valign=top> <a href="/bbs/?pid=40750#p"> Hardware &amp; Draw States Explorer V3.0</a><br><br> by <a href="/bbs/?uid=14742"> RamiLego4Game</a> <br><br><br> <a href="/bbs/?pid=40750#p"> [Click to Play]</a> </td></tr></table> </p> <p>After reverse engineering I found that the addresses 0x5F40 -&gt; 0x5F43 does something specials which is music corrupting as shown in this topic: <a href="https://www.lexaloffle.com/bbs/?tid=3561">https://www.lexaloffle.com/bbs/?tid=3561</a><br /> And addresses 0x5F44 -&gt; 0x5F7F are not used at all, and can be used to keep data between cart resets or cart changing, but clears on reboot.</p> <p>I'm not sure if they are used in the other platforms like rpi or chip, nor if they will be used in future updates.</p> https://www.lexaloffle.com/bbs/?tid=29348 https://www.lexaloffle.com/bbs/?tid=29348 Fri, 19 May 2017 09:14:41 UTC