[6-button] not working on PCE CD

[nemo93]

Hi, first of all thanks for that core. Any games I've tried just work irrespective of the system: PCE/TGFX/SGFX or PCE CD. Amazing. This on a modest RPi4.

Issue

I've tested nearly 400 titles and there's one little issue: switching to 6-button controller doesn't work in some games. Namely:

• Art of Fighting (Ryuuko no Ken / PCE CD)
• Garou Densetsu 2 (Fatal Fury 2 / PCE CD)
• Garou Densetsu Special (Fatal Fury Special / PCE CD)
• Kabuki Ittouryoudan (PCE CD)

To be sure I tried Street Fighter 2 which is a PCE game: no issue to report there. I can't reproduce it either on the following title:

• Kakutou Haou Densetsu Algunos (PCE CD, weirdly this one works with 6-button even without explicitly enabling it with L2)

To reproduce

Run a game mentioned above, then press the L2 trigger (at any time either on the 'bios screen' or while in game). You should see a notification telling you the 6-button controller is on. Then (first) controller will act weird or not at all. For instance no button will work or randomly. Switching back to 2-button get things back to normal.

Note: the issue can't be reproduced with beetle-pce-fast core. Everything works fine here.

Setup

• Device: RPi4
• OS: Retropie image (4.8.3), meaning 32-bit Buster
• Controller: Xbox One (Bluetooth)
• beetle-pce-libretro: latest (1.29.0)
• libretro: 1.12.0

Thanks.

[nemo93]

@bslenul Tested the latest master. I cannot reproduce the aforementioned issue any longer. I confirm that issue is now fixed. Thanks!