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US 2007/0192626 A1Published application
Exponent windowing
OwnerWajdi Feghali, William Hasenplaugh +4inventors
InventorsWajdi Feghali, William Hasenplaugh, Gilbert Wolrich, Daniel Cutter, Vinodh Gopal, Gunnar Gaubatz
Life of this patent
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Abstract
The disclosure includes description of a processor component that includes a set of register bits to perform a shift register operation. The component window detection logic can detect a window of bits in the set of register bits and, in response to detecting the window, output the window of bits.
Claims17
A processor component, comprising:
- a set of register bits to perform a shift register operation;
- window detection logic to detect a window of bits in the set of register bits, the window of bits having at least one non-zero bit and having a number of bits fewer than the number of register bits in the set of register bits;
- and
- in response to detecting the window, outputting, at least, the detected window of bits.
1 more element
A method, comprising:
- repeatedly shifting bits of an exponent into a set of register bits;
- detecting windows of non-zero bits in the set of register bits, the windows having a number of bits fewer than the number of register bits in the set of register bits;
- and
- performing lookups of the detected windows of non-zero bits in a set of pre-computed values.
1 more element
A computer program product, disposed on a computer readable medium, comprising instructions for causing a processor to:
- repeatedly shift bits of an exponent into a set of register bits;
- detect windows of non-zero bits in the set of register bits, the windows having a number of bits fewer than the number of register bits in the set of register bits;
- and
- perform lookups of the detected windows of non-zero bits in a set of pre-computed values.
1 more element
Dependencies are inferred from the claim text.