I'm trying to type in a simple BASIC program in Arnold on Linux (Arch Linux, Arnold TNG via AUR AUR (en) - arnold (https://aur.archlinux.org/packages/arnold/) ) but am stumped trying to find which key to press to obtain the + (add/plus) symbol.
After experimenting on my UK keyboard I thought I'd look in the Arnold source and try and map one of the apparently unused keys to provide a + symbol but my initial investigations so far suggest the plus key isn't catered for - I find references to CPC_KEY_MINUS but nothing for its converse +, no CPC_KEY_PLUS, no CPC_KEY_ADD.
Only workaround so far is to print chr$(43) and to copy it in.
+ is shift and ; on the CPC, which is shift and ' on my laptop (2 keys right of L).
I'm a bit late. So I say only one word - plus4emu.