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The Byte Code Engineering Library (BCEL) is a project sponsored by the Apache Foundation previously under their Jakarta charter to provide a simple API for decomposing, modifying, and recomposing binary Java classes (I.e. bytecode). The project was conceived and developed by Markus Dahm prior to officially being donated to the Apache Jakarta ...
Java bytecode is the instruction set of the Java virtual machine (JVM), the language to which Java and other JVM-compatible source code is compiled. [1] Each instruction is represented by a single byte, hence the name bytecode, making it a compact form of data.
Bytecode (also called portable code or p-code) is a form of instruction set designed for efficient execution by a software interpreter.Unlike human-readable [1] source code, bytecodes are compact numeric codes, constants, and references (normally numeric addresses) that encode the result of compiler parsing and performing semantic analysis of things like type, scope, and nesting depths of ...
The Jazelle instruction set is well documented as Java bytecode.However, ARM has not released details on the exact execution environment details; the documentation provided with Sun's HotSpot Java Virtual Machine goes as far as to state: "For the avoidance of doubt, distribution of products containing software code to exercise the BXJ instruction and enable the use of the ARM Jazelle ...
Version 2.3 introduced native code decompilers. The first decompiler that shipped with JEB was a MIPS 32-bit interactive decompiler. JEB 3 ships with additional decompilers, including Intel x86, Intel x86-64, WebAssembly (wasm), Ethereum (evm), Diem blockchain (diemvm). JEB 4 was released in 2021. A RISC-V decompiler was added to JEB 4.5.
DOS and Windows also have different file formats for executable files and object files, such as Portable Executable for executables and COFF for object files in 32-bit and 64-bit Windows. Unix and Unix-like systems have used the same format for executable and object files, starting with the original a.out format. Some formats can contain ...
These instructions are also available in 32-bit mode, in which they operate on 32-bit registers (eax, ebx, etc.) and values instead of their 16-bit (ax, bx, etc.) counterparts. The updated instruction set is grouped according to architecture ( i186 , i286 , i386 , i486 , i586 / i686 ) and is referred to as (32-bit) x86 and (64-bit) x86-64 (also ...
V8 can compile to x86, ARM or MIPS instruction set architectures in both their 32-bit and 64-bit editions; it has additionally been ported to PowerPC, [20] [21] and to IBM ESA/390 and z/Architecture, [22] [20] for use in servers. [23] V8 can be used in a browser or integrated into independent projects. V8 is used in the following software: