Cross-compiler

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A cross-compiler is a compiler which runs on one type of CPU, but creates object code for a different type of CPU. A cross-assembler is similar - an assembler which produces object code for a different type of machine.

Cross-compilers and cross-assemblers have a variety of uses: bringing up an operating system on a new machine, or creating code for a system (e.g. an embedded processor) on which it is not intended to host a software development environment, etc, etc.