Invention Grant
- Patent Title: Leading change anticipator logic
- Patent Title (中): 领先的变化预测逻辑
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Application No.: US13729421Application Date: 2012-12-28
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Publication No.: US09274752B2Publication Date: 2016-03-01
- Inventor: Simon Rubanovich , Thierry Pons , Amit Gradstein , Zeev Sperber
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Trop, Pruner & Hu, P.C.
- Main IPC: G06F7/74
- IPC: G06F7/74 ; G06F5/01 ; G06F7/485

Abstract:
In one embodiment, a processor includes at least one floating point unit. The at least one floating point unit may include an adder, leading change anticipator (LCA) logic, and a shifter. The adder may be to add a first operand X and a second operand Y to obtain an output operand having a bit length n. The LCA logic may be to: for each bit position i from n−1 to 1, obtain a set of propagation values and a set of bit values based on the first operand X and the second operand Y; and generate a LCA mask based on the set of propagation values and the set of bit values. The shifter may be to normalize the output operand based on the LCA mask. Other embodiments are described and claimed.
Public/Granted literature
- US20140188967A1 Leading Change Anticipator Logic Public/Granted day:2014-07-03
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