09334: ct486 [falloutu]: Mouse axes can only increase.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09334	DIP/Input	Major	Always	Dec 17, 2025, 06:03	Dec 30, 2025, 05:41

Tester	VasiliyFamiliya	View Status	Public	Platform	MAME (Unofficial Binary)
Assigned To		Resolution	Open	OS	Windows (x64)
Status [?]	Confirmed			Driver	pc/ct486.cpp
Version	0.283	Fixed in Version		Build	x64
		Fixed in Git Commit		Github Pull Request #

Summary	09334: ct486 [falloutu]: Mouse axes can only increase.
Description	It means that up and left movement is impossible. This bug affects both installational and immediately game EXEs.
Steps To Reproduce
Additional Information	http://redump.org/disc/8463/ Mouse driver is mousetb from ibm5150 SW list. Mouse device is -board2:comat:serport0 wheel_mouse. Just in case all potentially conflictable host mouse axes binds were cleared in advance.
Github Commit

Flags
Regression Version
Affected Sets / Systems	ct486 [falloutu]

Attached Files

No.23945 Kale Developer Dec 20, 2025, 14:08 edited on: Dec 20, 2025, 14:09	Does the same with logitech_mouse + ctmouse here
No.23996 VasiliyFamiliya Tester Dec 30, 2025, 05:41	This bug affects also another Interplay's games (Descent to Undermountain, for example) too and still presents even if you launched it from Windows 95.