Ah, got it!
I'm not worried about Canoe getting this at all. The SNES Classic has no way to use the functions in native (and outside of native there's no need to use Canoe at all), so there'd be honestly no point.
Can't you run MSU-1 on the SNES Classic with SD2SNES? I know you can on the original SNES.
EDIT: Nevermind. Finally decided to take a close look at the SNES Classic and it doesn't even have a cartridge port.
September 03, 2019, 10:32:06 am - (Auto Merged - Double Posts are not allowed before 7 days.)
Updated post with a new version.
Besides some minor improvements, I've fixed the seek macro for ExHiROM.
Lunar Address had given me the information that both 00-3F:8000-FFFF and 80-BF:8000-FFFF are shadows for the ExHiROM section, but according to bsnes' manifest, 80-BF:8000-FFFF is a shadow for the HiROM section (C0-FF:0000-FFFFFF).
As such, seek on ExHiROM works as follow now:
00-3F:8000-FFFF -> Shadow for ExHiROM banks 40 to 7D.
40-7D:0000-FFFF -> ExHiROM section.
80-BF:8000-FFFF -> Shadow for HiROM banks C0 to FF.
C0-FF:0000-FFFF -> HiROM section.
Again, let me know of any issues.