6/29/2023 0 Comments Magic number machine![]() ("beef babe") is used by the 1997 video game Frogger to detect a stack buffer overflow. ("boba babe") is used by pton as Host GUI Ack to QKit MFCC keyword detection response. ("cafe boba") is used by datp as canned return value for QKit MFCC keyword detection for Host GUI development since his colleague likes coffee (and maybe boba, too). ("bad cafe") is used by Libumem to indicate uninitialized memory area. ("bad too repeatedly") is used by Apple's iOS exception log to indicate that a VoIP application has been terminated by iOS because it resumed too frequently. ("bad food") is used by Microsoft's LocalAlloc(LMEM_FIXED) to indicate uninitialised allocated heap memory when the debug heap is used. ("baaaaaad") is used by Apple's iOS exception report to indicate that the log is a stackshot of the entire system, not a crash report. ![]() ("boobies") was likewise required by Microsoft's Hyper-V hypervisor to be used by a user of XEN as their user id. One proposal suggested changing it to 0x0DEFACED ("defaced"), but it was instead initially changed to decimal and then replaced entirely. ("big boobs") was required by Microsoft's Hyper-V hypervisor to be used by Linux guests as their "guest signature". ("BIOS food") is the value of the low bytes of last four registers on ARM PrimeCell compatible components (the component_id registers), used to identify correct behaviour of a memory-mapped component. ("a bad babe") was/is used by Microsoft's Windows 7 to trigger a debugger break-point, probably when a USB device is attached ("ate bad food") is used by Apple in iOS crash reports, when an application takes too long to launch, terminate, or respond to system events. ("forbid") was a password in some calibration consoles for developers to peer deeper into control registers outside the normal calibration memory range. ("1 bad boot" ) Multiboot header magic number. ("über (ooba) block") is used as the magic number for the ZFS uberblock. ("office") is used as the last part of product codes ( GUID) for Microsoft Office components (visible in registry under the HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall registry key). Many computer processors, operating systems, and debuggers make use of magic numbers, especially as a magic debug value. Further information: Magic number (programming)
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