L.A. MACHINEGUNS: screen garbage

[Garagefreek]

The screen should transition to black for a quick second before the game begins after selecting the stage but on the emulator we get this? screen shot below, is it fixable? Actual pcb footage https://youtu.be/IpKb5x-Ynds?feature=shared&t=68

[Garagefreek]

So any luck with this issue?

[ghost]

try dropping the ppc frequency

[ghost]

On my win 11 Intel laptop, it seems to poduce garbage at -ppc-frequency=75.
Try a value lower than that.

[dukeeeey]

These games aren't designed to run at those low clock frequencies, such garbage is expected

[ghost]

For me it's the opposite.
Letting Supermodel run at speeds now defined by the 'step' seems to cause the garbage.
Switching back to a lower frequency seems to fix it.
I never changed my launch scripts from ppc 66, so seeing this garbage was news to me and only achieved by letting Supermodel run 'out of the box'.

La guns seems tricky though. It feels a bit intense/laggy as if it needs more cycles, as you suggest. But too many cycles seems to throw off the rendering or timing?

[gm-matthew]

I think this might be similar to Scud Japan in that the tilegen glitches if it is updated too fast. I really ought to implement tilegen wait states to fix both of these issues; I've had a rough solution for quite a while that needs a bit of polishing.