[stella] Reindeer Rescue problem...help?

[Dennis Debro]

Hi Bob,

>>I soldered two of the 100 EPROMs I burned and played the game for a
>>bit.  After getting to the third round, I restarted the game but did
>>not touch the controller.  I then watched as Santa went right through
>>the playfield!!  I just fired up Stella and it does NOT happen in
>>Stella, but it sure does happen on a real 2600.  :(

Does this use a bankswitching scheme or is it 4K? Also what address are
you using for your collision reads? Are you doing like some of the early
2600 games and setting the TIA_BASE_READ_ADDRESS to $30?

> I am not a hardware guy; so this kind of issue is beyond me.  Anybody have
> any ideas?
> Why would a different type of EPROM affect the collision registers?
> Are there any owners of the Kroc cart or of a CC who wants to test this
> for me?

I'm not a hardware guy either so my suggestions were shots in the dark. I
do have a CC and a MaxiCart that I can test with if you'd like. I won't be
able to test this on real hardware until next week though.

Take care,
Dennis