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- MacsBug abstract "MacsBug is a low-level (assembly language/machine-level) debugger for pre-Mac OS X Macintosh operating systems. MacsBug is an acronym for Motorola Advanced Computer Systems Debugger, as opposed to Macintosh debugger (The Motorola 68000 Microprocessor is imprinted with the MACSS acronym). The original version was developed by Motorola as a general debugger for its 68000 systems — it was ported to the Mac as a programmer's tool early in the project's development.MacsBug is invoked by hitting the Macintosh's "Programmer's Key" or, as it became later known, the "Interrupt Key" or by pressing "Command-Power". MacsBug offers many commands for disassembling, searching, and viewing data as well as control over processor registers. MacsBug is not installed by default with Mac OS, although every Macintosh since the Macintosh Plus includes a debugger in ROM known as MicroBug.Users that stumble into MacsBug by accident need only to enter G and press return to escape from MacsBug; however, MacsBug is not installed by default, requiring a system extension, so a typical user environment does not include it. However, it was occasionally installed by end users to provide very basic error recovery. As the classic Mac OS lacked memory protection "hard crashes" where an application crash simply froze the entire system weren't uncommon. With MacsBug installed, instead of an unresponsive system, the user would be dumped into MacsBug, where they could type ES to Exit to Shell (force quit the crashed application and return to the Finder) or RB for ReBoot, which restarted the system. Such recovery efforts were often not successful, but the only alternative was a physical reset switch.The presence of MacsBug is indicated at startup; it is present if the user sees the text Debugger installed (although, occasionally, this may indicate the presence of another piece of software loaded into the area of memory reserved for the debugger, instead).MacsBug was originally for the Motorola 68000 series of processors only. When Apple introduced the Power Macintosh in 1994, it was followed by an updated MacsBug that supported the PowerPC instruction set and architecture.The last version of MacsBug was 6.6.3, released September 14, 2000. This final version works with all of the machines released in the July–September timeframe of 2000, including the Power Mac G4 (uni- and multi-processor), Power Mac G4 Cube, the iMac family (Ruby, Indigo, Sage, Graphite, and Snow), and the iBook family (Indigo, Key Lime, and Graphite).6.6.3 includes better support for debugging MP tasks, and fixes some serious bugs in the memory setting commands when used in PCI I/O space. It can also be used in Classic when running under Mac OS X, where it is invoked by pressing "⌘-⏏" (or "⌘-F12" on systems without an Eject key).Mac OS X allows programmers to use familiar MacsBug commands in gdb. This gdb plugin is included with the OS X Developer Tools, located in the directory /usr/libexec/gdb/plugins/MacsBug/.Third party alternatives to MacsBug included ICOM Simulations' TMON which came with the Darin Adler Extended User Area & Trap Discipline (allowing all documented Mac API parameters to be verified) and the fully symbolic Jasik debugger, which was much more powerful, but harder to use due to the intricate and non-standard user interface.".
- MacsBug computingPlatform Motorola_68000_series.
- MacsBug computingPlatform PowerPC.
- MacsBug developer Apple_Inc..
- MacsBug genre Debugger.
- MacsBug latestReleaseDate "2000-09-14".
- MacsBug latestReleaseVersion "6.6.3".
- MacsBug wikiPageExternalLink MacsBug.
- MacsBug wikiPageExternalLink www.feralcore.com.
- MacsBug wikiPageExternalLink macsbug.html.
- MacsBug wikiPageExternalLink index.html.
- MacsBug wikiPageExternalLink index.html.
- MacsBug wikiPageID "435698".
- MacsBug wikiPageRevisionID "543514181".
- MacsBug caption "The MacsBug debugger interface".
- MacsBug developer Apple_Inc..
- MacsBug genre Debugger.
- MacsBug hasPhotoCollection MacsBug.
- MacsBug latestReleaseDate "2000-09-14".
- MacsBug latestReleaseVersion "6.6".
- MacsBug name "MacsBug".
- MacsBug operatingSystem Mac_OS.
- MacsBug platform "680".
- MacsBug screenshot "320".
- MacsBug supportStatus "Unsupported".
- MacsBug wordnet_type synset-software-noun-1.
- MacsBug subject Category:Apple_Inc._software.
- MacsBug subject Category:Debuggers.
- MacsBug subject Category:Discontinued_development_tools.
- MacsBug subject Category:Mac_OS_development.
- MacsBug type Abstraction100002137.
- MacsBug type Code106355894.
- MacsBug type CodingSystem106353757.
- MacsBug type Communication100033020.
- MacsBug type Debugger106574334.
- MacsBug type Debuggers.
- MacsBug type Program106568978.
- MacsBug type Software106566077.
- MacsBug type Writing106359877.
- MacsBug type WrittenCommunication106349220.
- MacsBug type Software.
- MacsBug type Work.
- MacsBug type CreativeWork.
- MacsBug type SoftwareObject.
- MacsBug type InformationEntity.
- MacsBug comment "MacsBug is a low-level (assembly language/machine-level) debugger for pre-Mac OS X Macintosh operating systems. MacsBug is an acronym for Motorola Advanced Computer Systems Debugger, as opposed to Macintosh debugger (The Motorola 68000 Microprocessor is imprinted with the MACSS acronym).".
- MacsBug label "MacsBug".
- MacsBug label "MacsBug".
- MacsBug label "MacsBug".
- MacsBug sameAs MacsBug.
- MacsBug sameAs MacsBug.
- MacsBug sameAs m.0287gj.
- MacsBug sameAs Q3275036.
- MacsBug sameAs Q3275036.
- MacsBug sameAs MacsBug.
- MacsBug wasDerivedFrom MacsBug?oldid=543514181.
- MacsBug isPrimaryTopicOf MacsBug.
- MacsBug name "MacsBug".