Object code, or sometimes an object module, is what a computer compiler produces. In a general sense object code is a sequence of statements or instructions in a computer language, usually a machine code language (i.e., binary) or an intermediate language such as RTL.
Object code is a portion of machine code that has not yet been linked into a complete program. It is the machine code for one particular library or module that will make up the completed product. It may also contain placeholders or offsets, not found in the machine code of a completed program, that the linker will use to connect everything together. Whereas machine code is binary code that can be executed directly by the CPU, object code has the jumps partially parameterized so that a linker can fill them in.
An assembler is used to convert assembly code into machine code (object code). A linker links several object (and library) files to generate an executable.
- "Compiler". TechTarget. Retrieved 1 September 2011.
Traditionally, the output of the compilation has been called object code or sometimes an object module.
- Aho, Alfred V.; Sethi, Ravi; Ullman, Jeffrey D. (1986). "10 Code Optimization". Compilers: principles, techniques, and tools. Computer Science. Mark S. Dalton. p. 704. ISBN 0-201-10194-7.