The following operators can be used to better focus your queries.
( ) , AND, OR, NOT, W/#
? single char wildcard, not at start
* multi char wildcard, not at start
(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*
This guide provides a more detailed description of the syntax that is supported along with examples.
This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.
Concept Search - What can I type?
For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.
Disclosed is a means to reduce Instruction Cache reload latency by varying the pattern of unloading a memory data buffer used for reloads.
English (United States)
This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
100% of the total text.
Page 1 of 2
Reducing Instruction Cache Reload Latency
Disclosed is a means to reduce Instruction Cache reload latency by varying
the pattern of unloading a memory data buffer used for reloads.
This scheme is for a system in which the memory data bus width is twice the
width of the I-Cache reload (I-reload) bus. Because the memory bus is twice as
wide as the I-reload bus, the data must be buffered before it is sent to the I-
The I-Cache will receive only half the first memory data immediately. The
other half will be delayed a cycle. In this scheme either half of the memory data
can be sent to the I-Cache first.
In this scheme the I-Cache will receive the data that it needs first. By having
the capability to select the pattern of sending data to the I-cache unit, overall I-
cache reload latency is reduced by an average of .5 cycle.
In the example given below the memory bus will be one quad-word wide and
the I-reload bus will be one double-word wide. A total of four quad words are
read from memory. Eight transfers will be required to send this data to the I-
Cache. This is shown in the figure. The two sequences are also shown in the
figure. In the first sequence double word 0 is sent first. In the second sequence
double word 1 is sent first.
Page 2 of 2
[This page contains 2 pictures or other non-text objects]