MacsBug is Apple's assembly-level 680x0 and PowerPC debugger for Mac OS. It can be used to debug code running in most execution environments, from applications to drivers, and everything in between. It's often used as a bug-reporting tool by many 3rd-party developers, as well as Mac OS system software developers.
||Free to try
Mac OS Classic
||Mac OS X 10.4 PPCMac OS X 10.3.9Mac OS X 10.4 IntelMac OS X 10.0Mac OS X 10.1Mac OS X 10.5 PPCMac OS X 10.2Mac OS X 10.5 IntelMac OS X 10.3Mac OS Classic