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HxD is a freeware hex editor, disk editor, and memory editor developed by Maël Hörz for Windows. It can open files larger than 4 GiB and open and edit the raw contents of disk drives, as well as display and edit the memory used by running processes. Among other features, it can calculate various checksums, compare files, or shred files. [1]
You can complete a basic PC health check in about 30 minutes, but a more thorough analysis could take up to an hour or longer, depending on your computer's specifications and what you find.
HRESULT is defined in a system header file as a 32-bit, signed integer [1] and is often treated opaquely as an integer, especially in code that consumes a function that returns HRESULT. A HRESULT value consists of the following separate items:
Each of these number systems is a positional system, but while decimal weights are powers of 10, the octal weights are powers of 8 and the hexadecimal weights are powers of 16. To convert from hexadecimal or octal to decimal, for each digit one multiplies the value of the digit by the value of its position and then adds the results. For example:
A processor with 128-bit byte addressing could directly address up to 2 128 (over 3.40 × 10 38) bytes, which would greatly exceed the total data captured, created, or replicated on Earth as of 2018, which has been estimated to be around 33 zettabytes (over 2 74 bytes). [1] A 128-bit register can store 2 128 (over 3.40 × 10 38) different
Widening unsigned integer multiply without setting flags. Multiplies EDX/RDX with r/m, then stores the low half of the multiplication result in ra and the high half in rb. If ra and rb specify the same register, only the high half of the result is stored. PDEP ra,rb,r/m: VEX.LZ.F2.0F38 F5 /r: Parallel Bit Deposit.
ImHex is a free cross-platform hex editor available on Windows, macOS, and Linux. [ 1 ] ImHex is used by programmers and reverse engineers to view and analyze binary data.
To encode an unsigned number using unsigned LEB128 (ULEB128) first represent the number in binary. Then zero extend the number up to a multiple of 7 bits (such that if the number is non-zero, the most significant 7 bits are not all 0). Break the number up into groups of 7 bits.