Measuring and testing
Reexamination Certificate
2008-01-01
2008-01-01
Thangavelu, K. (Department: 2123)
Measuring and testing
C717S136000, C717S138000, C717S140000, C717S139000, C709S241000, C707S793000
Reexamination Certificate
active
11025639
ABSTRACT:
This invention relates to the art of computer system emulation and, more particularly, to a computer system emulator in which the functions normally performed by the hardware in a legacy central processor unit are emulated by a software program. The invention is to enhance the emulated instruction set beyond that of the legacy machine such to include as new single instructions a method for invoking operating system functions, with the machine coding of the operating system functions now being performed by machine code native to the new host machine, rather than as a sequence of emulated legacy instructions.
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Bohult Stefan R.
Brophy William J
Brown F. Michel
Guenthner Russell W.
Schultz Rodney B.
Bull HN Information Systems Inc.
Driscoll Faith F.
Guenthner Russell W.
Phillips James H.
Thangavelu K.
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