In development of all operating system (OS), debugging is very troublesome. Then, in this research, the hardware dependence portion of Lambda is written by using the function of Linux so that OS Lambda under development can be executed on Linux. Functions called from the hardware dependence portion of Lambda, are a timer, interruption, a thread management block, context switching, and interruption. The signal is used for interruption and setjmp and longjmp are used for context switching. Suitable operation was obtained, when the hardware non-depending portion of Lambda was put on the mounted hardware dependence portion using this technique.
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