Supermodel Forum

Playing srally2 after it creates its NVRAM file, always leads to corrupted graphics.
See screenshot:



Steps to reproduce:

1_ open srally2.zip with non-existent srally2.nv
2_ emulation begins
3_ wait until cars appear in the intro video
4_ insert coins
5_ play
6_ close emulator's window with "X" or by pressing ESC on the keyboard
7_ open srally2.zip (this time srally.nv has been just created)
8_ emulation start directly to gametype selection (intro video is skipped)
9_ corrupted graphics

Emulation works good only if started without its srally2.nv

The underlying cause of this has never been investigated. Clearly, the game is skipping some initialization step when it detects unused coins. One of many things I would love to investigate given unlimited time but probably never will. Anyone willing to slog through PowerPC assembly language and familiar with C++ is welcome to ping me for suggestions of how to proceed investigating this issue

The game will boot with an NVRAM file, I think. Just make sure there are no unused credits. Try inserting only one coin, playing a game, then exiting.

inserting only one coin, playing a game, then exiting.

It works, thanks Bart!

I had a quick look at this
the data is filled with zeros for the viewport, ie no data
Could be an actual game bug, as apposed to an emulation bug.

Same problem here. Has it been resolved?

zuppa_di_pesce wrote:Same problem here. Has it been resolved?

Maybe you should re-read the thread...

MrThunderwing wrote:

zuppa_di_pesce wrote:Same problem here. Has it been resolved?

Maybe you should re-read the thread...

Ian wrote:I had a quick look at this
the data is filled with zeros for the viewport, ie no data
Could be an actual game bug, as apposed to an emulation bug.

Sorry!

Ha, no, as in I meant Bart had posted a solution already. Only use one credit at a time, don't exit the game with credits in the system. Also, don't credit up before the attract mode starts.

addamm wrote:

inserting only one coin, playing a game, then exiting.

It works, thanks Bart!

addamm wrote:

inserting only one coin, playing a game, then exiting.

It works, thanks Bart!

Another workaround is to configure coins as FREE PLAY inside TEST menu.

which other game has this NV problem?

Star Wars, Sega Rally, and...?