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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
08804 Documentation Trivial Always Dec 20, 2023, 03:04 Jan 31, 2024, 23:20
Tester VasiliyFamiliya View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows 10/11 (64-bit)
Status [?] Confirmed Driver
Version 0.261 Fixed in Version Build 64-bit
Fixed in Git Commit Github Pull Request #
Summary 08804: p9112, wcombat: Outdated comments in the Konami Viper driver file.
Description "Game status:
         p9112 RTC self check bad.
                            The game checks the checksum of 0x157d4d0-0x157d4ee against the checksum that should be at 0x157d4ee-0x157d4ef,
                            but this part of memory is never written to after its initial clearing on boot.
                            If 0xffff is placed at 0x157d4ee then the game will pass the RTC check.
                            The game will later complain about "Hardware Error: Security Key Error" if you try starting the game.
        wcombat Can boot into a test menu by using a combination of dipswitches, but it says "serial check bad". Can't boot normally.
        wcombatu Bootable when dipsw 4 is set to on. Controls not implemented so it's not possible to pass nickname selection screen. Freezes when test button is pressed.

Althought I didn't test all wcombat sets yet, as 8801 report shows, wcombatk calmly launches without any troubles.
Steps To Reproduce
Additional Information
Github Commit
Flags Noted in Source
Regression Version
Affected Sets / Systems p9112, wcombat
Attached Files
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Senior Tester
Dec 20, 2023, 08:01
The games are marked as not working, but they do at least start up - I didn't try playing a game.
User avatar
Jan 31, 2024, 23:20
edited on: Jan 31, 2024, 23:21

Game status (potentially outdated, to be moved on top):

Not even sure I want this bug report to stay open tbh.