MAMEWorld Forums - EmuChat - kyugo driver: Silly report, questions, and possible bugs.

Playing with the kyugo games, I 'discovered' some unmapped addresses / ports.

Sub_port_map list:
port 0x03: ??? Flashgal (Set 1) and Repulse (and clones) write 0xFF at startup.
port 0x43: ??? Flashgal (Set 2) writes 0xFF at startup.
port 0x80: ??? Gyrodyne (and clones) write 0x00 at startup and 0xF2 each time you lose a life!
port 0x83: ??? Legend, Airwolf and S.R.D. Mission + clones write 0xFF at startup.
port 0x90 - 0x91: are coin counters on Legend, Airwolf, S.R.D. Mission ...and clones.
port 0xC0 - 0xC1: are coin counters on Flashgal, Repulse ...and clones.

Only the coin counters ports may be interesting.

Main_memory_map (these may be all irrelevant...):

addr -> 0xAB00 , 0xAAC0, 0xAA80, 0xAB40:
??? Lots of unknown writes (Repulse and clones write 0x01 at these addresses when the demo starts).

addr -> 0xAB80: ??? Repulse and clones write 0x06 here when the demo starts.

addr:
0xAC00, 0xAC40, 0xAC80, 0xABC0,
0xACC0,
0xAD00, 0xAD40, 0xAD80, 0xADC0,
0xAE00, 0xAE40, 0xAE80, 0xAEC0,
0xAF00, 0xAF40, 0xAF80, 0xAFC0 (Seems to follow a 'pattern' :-)):
Lots of unknown writes (Repulse and clones write 0x00 at these addresses when the demo starts)

Now the questions:
1) Regarding the port 0x80 on Gyrodyne... do you know if the cabinet has a sort of lamp / flash?
(I imagine something like a psychedelic effect when you lose a life, or maybe I'm raving

)

2) See the airwolf screenshot... It seems that in cocktail mode the upper part of the rotor is two pixels off (notice the wraparound)...
Is this an original game bug? Someone has the pcb to verify that?

...and finally the bug:
See the legion screenshot... if you reset the game when the screen is flipped (P2 turn in coktail mode) the fg layer remains flipped,
the bg layer is also flipped with the wrong scroll offsets/directions and the sprites are 'straight' but with wrong displacements.
This also happens to all kyugo games (although I also saw this behaviour 'outside' this driver, ..I think there are many games to check).
Needs to reset the flip_screen var?

Sorry for the long post. ^_^

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