forums.ps2dev.org

[yoyofr]

hi, just wanted to point the small issue with pspsdk & memmove.
it doesn't seem to be well implemented whereas memcpy is ok.

[mrbrown]

What's the issue?

[yoyofr]

in fact it's a bit strange. I had my sources compiling and working well without pspsdk (using my own malloc, stdio functions, ...).
the sources are snes9x ones, more specifically, my own version of it (I'm the author of ljp, a palmos multi system emulators).
I've ported it to pspsdk, compiling is fine, ... but when I launch the program, I had a blackscreen with a very low fps. but *no crash*.
basically, instead of having the game showing, I had a black screen and it was like the I was emulating a lot of cpu intensive instructions

so I guess the memmove had corrupted some memory areas, but nothing too nasty since I had no crash and always could exit using home button.

by using a #define memmove memcpy in a globally used include file,
the issue ran away. I don't remember the sdk version I'm using, but I've
done a checkout on svn last monday evening (GMT+1)

anyway, I'll publish the sourcecode soon on my website

*edit*
I forgot to thank you for all your work! I don't post a lot in the forum but I read it everyday and it's mainly thanks to it that neocdpsp could be done.
I hope you keep up the great work!

[mc]

I had a quick look at the implementation, and it seems to me that

*udst-- = *usrc--;

should really be

*--udst = *--usrc;
_________________
Flying at a high speed
Having the courage
Getting over crisis
I rescue the people

[TyRaNiD]

Indeed it should be, changed it.