The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 2019
Filed:
Feb. 28, 2017
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Darek Josip Mihocka, Mercer Island, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
In aspects of arithmetic lazy flags representation for emulation, a host processor system receives application instructions that are designed for execution by a guest processor system that is different than a processor architecture of the host processor system. A host emulator receives an application instruction that includes an arithmetic operation, determines a result value of the arithmetic operation that is performed on integer values, and determines a first state variable and a second state variable. The host emulator also determines whether a subsequent application instruction will need a derivation of a subset of arithmetic flags based in part on a third state variable. The host emulator can then determine that the subsequent application instruction does not need the derivation of the subset of arithmetic flags, and perform the subsequent application instruction without a determination of the third state variable, thereby reducing processor clock cycles to emulate the application instructions.