Electrical computers and digital processing systems: processing – Processing control – Branching
Reexamination Certificate
2007-06-29
2009-11-03
Li, Aimee J (Department: 2183)
Electrical computers and digital processing systems: processing
Processing control
Branching
Reexamination Certificate
active
07613912
ABSTRACT:
A system and method is provided to simulate hardware interrupts by inserting instructions into a stream of instructions where a “no operation” (or NOOP) instruction would normally be inserted. The instruction is inserted is a conditional branch instruction, called a BISLED, that branches if there is external data in a known memory area. In one embodiment, the processor has at least two pipelines that need to be aligned so that certain instructions are scheduled for the first pipeline and other instructions are scheduled for the other. In this embodiment, the BISLED also serves the purpose of re-aligning the instruction stream so that instructions are placed in the correct pipeline based upon the function performed by the instruction.
REFERENCES:
patent: 4777587 (1988-10-01), Case et al.
patent: 5564028 (1996-10-01), Swoboda et al.
patent: 5724566 (1998-03-01), Swoboda et al.
patent: 5729727 (1998-03-01), Suzuki
patent: 5832205 (1998-11-01), Kelly et al.
patent: 5922070 (1999-07-01), Swoboda et al.
patent: 6047351 (2000-04-01), Cheng
patent: 6209086 (2001-03-01), Chi et al.
patent: 6604188 (2003-08-01), Coon et al.
patent: 6728865 (2004-04-01), Coon et al.
patent: 6738892 (2004-05-01), Coon et al.
patent: 6807621 (2004-10-01), Strombergson et al.
patent: 6990569 (2006-01-01), Hill
patent: 7013383 (2006-03-01), Shelor
patent: 2002/0038417 (2002-03-01), Strombergsson et al.
patent: 2003/0084272 (2003-05-01), Hill
patent: 2003/0163669 (2003-08-01), DeLano
patent: 2005/0216703 (2005-09-01), Dieffenderfer et al.
patent: 2006/0080661 (2006-04-01), Brokenshire et al.
International Business Machines - Corporation
Li Aimee J
Talpis Matthew B.
VanLeeuwen & VanLeeuwen
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