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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
08683 Crash/Freeze Major Always Jun 24, 2023, 17:42 Jun 29, 2023, 22:17
Tester ArcadeShadow View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows 10/11 (64-bit)
Status [?] Confirmed Driver
Version 0.255 Fixed in Version Build 64-bit
Fixed in Git Commit Github Pull Request #
Summary 08683: spec128: Main menu cursor doesn't work when "MGT DISCiPLE" device plugged
Description Start the ZX Spectrum 128 system with the "MGT DISCiPLE" (spectrum_disciple) device plugged on the exp slot, then at the main menu, the cursors keys don't work.
Tried also with the "MGT +D" device plugged, and it works.
Steps To Reproduce
Additional Information
Github Commit
Regression Version
Affected Sets / Systems spec128
Attached Files
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Jun 29, 2023, 22:17
There's a good explanation for this: the DISCiPLE device also adds two Interface II-type (i.e. keyboard-mapped) digital joysticks, and MAME maps the directional inputs for the first joystick to the cursor keys, so the system thinks two keys are being pressed at once. Nullifying the codes for "Kempston\Sinclair P1" in the input menus allows the cursor keys work normally.