Amazing work! Thanks for finding the issue. Which tools do you use to debug the ROM and how did you find bit associated with the Calm spell? That’s a really deep dive.
Hey there! So, I dunno if you still work on Zelda's Adventure but I wanted to report THE MOST important bug that NEEDS to be fixed no matter what. You see when you save the game there is a chance that your save might break. I dunno if somebody said that in the comments but the thing is the save breaks if you choose Save and Continue. BUT if you choose Save and Quit the save will be okay. So, can you please fix this problem?