Electrical computers and digital processing systems: interprogra – Miscellaneous
Reexamination Certificate
2005-04-26
2005-04-26
An, Meng-Al T. (Department: 2126)
Electrical computers and digital processing systems: interprogra
Miscellaneous
C718S108000
Reexamination Certificate
active
06886165
ABSTRACT:
A method for the direct call of a target function by a start function by means of a processor with a memory management unit (MMU) in a computer operated by an operating system. In today's multitasking operating systems, the call of a function of a first task by a second task is executed and managed by the task scheduler of the operating system. The time of the execution of the called function is uncertain and is dependent on the operating system as well as the tasks managed at every point in time by the operating system. One object of the invention is to disclose a method which enables a time-determined call of a function and which is executed immediately in connection with the call. This object is achieved in that the start function is a component of a first task with a first memory context and in that the first task performs a context switch from the first memory context into the other memory context and this memory switch is reversed after the execution of the target function.
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Bierwisch Clemens
Dieterle Ulrich
Müller Stefan Klemens
Nacken Rudolf
An Meng-Al T.
Hood Jeffrey C.
Meyertons Hood Kivlin Kowert & Goetzel P.C.
National Instruments Corporation
Truong LeChi
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