Modulo bug in Dualis r10

[Mollusk]

It looks like I fell on a weird bug :

 

- Each time I used a modulo (%), like x = a%b; it return b...

- The same test on DS shows the correct answer though.

 

Any idea why ?

[Robert]

Let's hope someone can contact Mic, as he hasn't signed on for a month.

[mic]

If you have a.bin/.nds that does this, i can check it out.

[Mollusk]

http://palib.pizz.biz/LargeMaps.zip

 

Basicly : this example loads a map, maptile per maptile, using a modulo... On DS it shows normally, on Dualis it doesn't show right.... (always the same tile shown...)

[Mollusk]

http://palib.pizz.biz/test.zip

 

In this example, you chose a, b, and it shows a%b... You'll see the correct result on DS, and the wrong one on dualis...

(don't chose b =0 though )

[mic]

Well i extracted the modulo code from libgcc (which is also the one i found in your ROM) and ran it in Dualis - worked properly, so that doesn't seem to be the problem. So the bug most be occuring at a later point..

[mic]

I had the division software interrupt mapped to the wrong number. Both demos now work.

[Mollusk]

nice ! any idea when the next update will be then ?