Print stack if sp is not equivalent to expected value.
Print stack if sp is not equivalent to expected value.

Maxwell-Alexius/goby,Maxwell-Alexius/goby,Maxwell-Alexius/goby,goby-lang/goby,goby-lang/goby,st0012/Rooby,hachi8833/goby,hachi8833/goby,st0012/Rooby,goby-lang/goby,hachi8833/goby