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The Be File System (BFS) is the native file system for the BeOS.In the Linux kernel, it is referred to as "BeFS" to avoid confusion with Boot File System.. BFS was developed by Dominic Giampaolo and Cyril Meurillon over a ten-month period, starting in September 1996, [2] to provide BeOS with a modern 64-bit-capable journaling file system. [3]
Functions named stat64(), lstat64() and fstat64() return attributes in a struct stat64 structure, which represents file sizes with a 64-bit type, allowing the functions to work on files 2 GiB and larger (up to 8 EiB). When the _FILE_OFFSET_BITS macro is defined to 64, these 64-bit functions are available under the original names.
Mach-O binary (64-bit) FE ED FE ED: þíþí: 0 JKS Javakey Store [32] CE FA ED FE: Îúíþ: 0 Mach-O binary (reverse byte ordering scheme, 32-bit) [33] CF FA ED FE: Ïúíþ: 0 Mach-O binary (reverse byte ordering scheme, 64-bit) [33] 25 21 50 53 %!PS: 0 ps PostScript document: 25 21 50 53 2D 41 64 6F 62 65 2D 33 2E 30 20 45 50 53 46 2D 33 2E ...
XFS is a 64-bit file system [24] and supports a maximum file system size of 8 exbibytes minus one byte (2 63 − 1 bytes), but limitations imposed by the host operating system can decrease this limit. 32-bit Linux systems limit the size of both the file and file system to 16 tebibytes.
In 2003, 64-bit CPUs were introduced to the mainstream PC market in the form of x86-64 processors and the PowerPC G5. A 64-bit register can hold any of 2 64 (over 18 quintillion or 1.8×10 19) different values. The range of integer values that can be stored in 64 bits depends on the integer representation used.
The pointer sections are 32-bit (4-byte) address values for 32-bit Mach-O binaries and 64-bit (8-byte) address values for 64-bit Mach-O binaries. Pointers are read by machine code and the read value is used as the location to call the method/function rather than containing machine code instructions.
Over time, the PE format has grown with the Windows platform. Notable extensions include the .NET PE format for managed code, PE32+ for 64-bit address space support, and a specialized version for Windows CE. To determine whether a PE file is intended for 32-bit or 64-bit architectures, one can examine the Machine field in the IMAGE_FILE_HEADER. [6]
ARMv6 introduces BE-8 or byte-invariant mode, where access to a single byte works as in little-endian mode, but accessing a 16-bit, 32-bit or (starting with ARMv8) 64-bit word results in a byte swap of the data. This simplifies unaligned memory access as well as memory-mapped access to registers other than 32-bit.