Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
06989 Sound Minor Always 22 days ago 22 days ago
Tester M.A.S.H. View Status Public Platform MAME (Official Binary)
Assigned To cuavas Resolution Fixed OS Windows 10 (64-bit)
Status [?] Resolved Driver champbas.cpp
Version 0.198 Fixed in Version 0.199GIT Build 64-bit
Summary 06989: champbb2j: AY-3-8910 sound is completely missing
Description The AY-3-8910 sound is completely missing in clone Champion Base Ball Part-2 (Japan).
Only the DAC sound is working!
Steps To Reproduce
Additional Information The parent set Champion Base Ball Part-2 (set 1) uses the address 0x7000 and 0x7001
to write commands to the AY-3-8910 chip, while the clone uses 0x7001 + 0x7002.
See (DASM_champbb2-champbb2j.png) DASM of Champion Base Ball Part-2 (set 1) and clone Champion Base Ball Part-2 (Japan)

History:
- MAME 0.138: Added Champion Base Ball Part-2 (Japan)
- MAME 0.168: The ALPHA-8201 device was added to the driver and Champion Base Ball Part-2 (Japan) that previously locked up at boot is playable.

Discussion on MAME github:
https://github.com/mamedev/mame/pull/3417
Flags
Regression Version  0.138
Affected Sets / Systems champbb2j
Attached Files
png file icon DASM_champbb2-champbb2j.png (11,112 bytes) 22 days ago Uploaded by M.A.S.H.
M.A.S.H.
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Notes
2
User avatar
No.15058
cuavas
Administrator
22 days ago
Try 3f024b8a1d35e8abcf9f54e19ab357de38c66925
User avatar
No.15059
M.A.S.H.
Senior Tester
22 days ago
Sound now works!
Compiled with https://git.redump.net/mame/commit/?id=3f024b8a1d35e8abcf9f54e19ab357de38c66925
Many thx!