VBXE fx

[Heaven/TQA]

As my VBXE is broken...can someone test this little fx on real VBXE if it works? thx... this is basic for an fx of Gridrunner VBXE enhanced...

vbxe1.xex

[tebe]

it works, but Altirra not show background "trash"

[Rybags]

Lots of letter B looking things in a worm trail, in narrow screen mode.

 

Background looks like it's just alternating between a couple of screens of random data.

[Mclaneinc]

I just get the green B's and a black background?

[Rybags]

VBXE on real hardware has random contents in it's RAM when the machine's powered up.

 

Maybe it's worth implementing something like that in Altirra - might be helpful for programmers to remember to clear their workspace first.

Edited February 8, 2010 by Rybags

[Heaven/TQA]

yup. need to clear the virtual vrams but piece of cake with the blitter...

[phaeron]

Heh... yeah, I got burnt by this too.

 

Here's a version of Altirra that fills memory with junk on cold reset:

 

http://www.virtualdub.org/beta/Altirra-1.6-test3.zip

http://www.virtualdub.org/beta/Altirra-1.6-test3-src.zip

 

The pseudorandom fill seed is constant in this version; I couldn't decide whether a varying the seed was a good idea or not. On one hand, varying the seed would expose more problems where programs are relying on uninitialized memory. On the other hand, keeping the seed constant keeps the deterministic nature of the emulator's cold reset.

[jvas]

As my VBXE is broken...can someone test this little fx on real VBXE if it works? thx... this is basic for an fx of Gridrunner VBXE enhanced...

[Heaven/TQA]

thanks for the pic... i definitly need to clear the vram...