Viewing Issue Advanced Details
|ID||Category [?]||Severity [?]||Reproducibility||Date Submitted||Last Update|
|03289||Graphics||Minor||Always||Jun 28, 2009, 20:02||May 2, 2022, 14:44|
|Tester||Haze||View Status||Public||Platform||MAME (Self-compiled)|
|Version||0.132u2||Fixed in Version||0.243||Build|
|Fixed in Git Commit||ba7824c||Github Pull Request #||#9492|
|Summary||03289: rtypeleo: The player's ship doesn't flicker correctly when invulnerable|
this one has bugged me for a while, and I'd really like real PCB confirmation either way.
Basically in R-Type Leo when you start the game, or when you die you're invulnerable for a few seconds.
Right now in MAME your ship will either be shown with a white colour, or the normal colour during this period (it seems random, sometimes when you die you'll appear solid white, other times, normal)
If you appear 'normal' colour, you have no way of knowing how long the invulnerability will last.
I suspect that the ship should flicker between the two colours during this invulnerability, but it doesn't. It might be a timing glitch, or a subtle CPU bug, or even a glitch in the original game. AFAIK it's always been this way in MAME.
|Steps To Reproduce|
|Affected Sets / Systems||rtypeleo|
0001.png (9,846 bytes) Jun 29, 2009, 00:20
rtype_leo_pcb_20111210164851.zip (5,236,430 bytes) Dec 10, 2011, 16:46 Uploaded by Stefan Lindberg
PCB recording showing the flickering
|There are no relationship linked to this issue.|
Jun 29, 2009, 00:20
|Marking as possible. Added screen of behavior.|
Dec 10, 2011, 16:46
|There is flickering on the sunrise at stage 1 boss also, see the PCB recording i done.|
Dec 8, 2018, 17:10
Another pcb video here. The flickering is very clear. I guess the "possible" flag could be removed:
Mar 31, 2022, 11:48
edited on: Mar 31, 2022, 12:17
This is caused by
m_palette_bank = (m_videocontrol >> 1) & 1;
of note, there's also a comment about Lethal Thunder RAM test disliking this, although it suggests that might use a different board type.
nbbatman appears to need it, but the hookup is almost certainly wrong.
Mar 31, 2022, 12:08
It looks like only Major Title 2, Ninja Baseball Bat Man, Dream Soccer 94, Gun Force 2 need this logic based on limited testing
these also happen to be the games that have banked ROM, so maybe it is a feature of later boards only, but not in the way the comments suggest.