Re: [hatari-devel] Lethal Xcess load state

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On 06/18/2018 12:17 AM, Vincent Rivière wrote:
> I'm still struggling with Lethal Xcess.
> Using latest HG version for Cygwin.
>
> I'm using an apparently good saved state file, at the menu.
> Sometimes it loads with good palette.
> Sometimes it loads with wrong palette. See screenshot.
>
> I can type AltGr+L many times, it doesn't change anything.
> - If it was good the first time, it is always good.
> - If it was wrong the first time, it is always wrong. The only solution 
> is to close Hatari completely, run it again, cross fingers, and type 
> AltGr+L. If it is wrong, start again.

So you're saying that there's some difference in Hatari startup state
from one run to another, when nothing has been changed in Hatari
configuration / setup.

I.e. I assume this isn't the random snapshot fail issue you reported
earlier, and which Nicolas is aware of.


I can think of two things that can affect this:
- RTC
- Wakeup State for MMU/GLUE

Are you using a machine configuration with RTC (MegaST/STE, TT, Falcon),
or using "--video-timing random" setting ("VideoTiming = 0" in your
Hatari config file)?

Especially latter could easily explain your symptom.


> This is the proof that something isn't properly initialized in Hatari. 
> Loading a particular saved state should give the very same result on 
> each time.

Nicolas mentioned that the game is a bit buggy.  If timings differ
a bit (and they do differ between different ST & STE models), it
may not work correctly.  MFP<->CPU timings jitter was something he
mentioned earlier as not being yet emulated fully.


	- Eero