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the emotional rollercoaster of
😨 oh god how the hell do you implement va_list
😌 ah it’s just a void * pointing to the stack
😱 but the first few args can be passed in registers
😮 oh, the callee can just push them to the stack
🤯 …and the arguments end up in the right order if you do!
I think the implementation of va_list in touchHLE is quite elegant, if I do say so myself: https://github.com/hikari-no-yume/touchHLE/blob/cf6b650ebb227ac588d2eb107a8cea90a5fbe97a/src/abi.rs#L349-L360