Appeal 2007-2127
Reexamination Control No. 90/006,621
thereafter returning control of the central processing unit to a
previously preempted thread of said same program to
enable said previously preempted thread to perform the
next successive portion of its respective subtask during
the next timeslice of its respective series of spaced
timeslices,
and repeating the above-recited cycle of said clock responsive
actuation of the interrupt operation, said thread
preemption and said thread invocation, until the
respective subtasks of the threads of said program are
completed,
whereby each subtask portion is executed during a respective
timeslice with the subtask portion of one processing
thread interleaved with the subtask portions of at least
one other processing thread to provide concurrent and
effectively simultaneous execution of the threads.
REFERENCES
Nitta US 4,641,264 Feb. 3, 1987
(filed Sep. 7, 1982)
Heard US 4,689,768 Aug. 25, 1987
(filed June 30, 1982)
Marvin L. De Jong (De Jong), Apple II® Assembly Language
(Howard W. Sams & Co., Inc. June 2, 1982).
Ray Duncan, Advanced OS/2 Programming (Microsoft Press 1989),
pages 7, 8, 143, 144, 228-39, 296, 499, and 779.
Michael J. Young, Programmer's Guide to OS/2 (Sybex 1988),
pages 39, 78, 178-91.
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