Electrical computers and digital processing systems: processing – Instruction decoding – Decoding instruction to accommodate variable length...
Reexamination Certificate
2011-01-04
2011-01-04
Patel, Niketa I (Department: 2181)
Electrical computers and digital processing systems: processing
Instruction decoding
Decoding instruction to accommodate variable length...
Reexamination Certificate
active
07865699
ABSTRACT:
This invention pertains to apparatus, method and a computer program stored on a computer readable medium. The computer program includes instructions for use with an instruction unit having a code page, and has computer program code for partitioning the code page into at least two sections for storing in a first section thereof a plurality of instruction words and, in association with at least one instruction word, for storing in a second section thereof an extension to each instruction word in the first section. The computer program further includes computer program code for setting a state of at least one page table entry bit for indicating, on a code page by code page basis, whether the code page is partitioned into the first and second sections for storing instruction words and their extensions, or whether the code page is comprised instead of a single section storing only instruction words.
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Altman Erik R
Gschwind Michael
Luick David A.
Prener Daniel A.
Rivers Jude A.
Geib Benjamin P
Harrington & Smith
International Business Machines - Corporation
Patel Niketa I
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