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One use for such "packed" structures is to conserve memory. For example, a structure containing a single byte (such as a char) and a four-byte integer (such as uint32_t) would require three additional bytes of padding. A large array of such structures would use 37.5% less memory if they are packed, although accessing each structure might take ...
In computer science, a data buffer (or just buffer) is a region of memory used to store data temporarily while it is being moved from one place to another. Typically, the data is stored in a buffer as it is retrieved from an input device (such as a microphone) or just before it is sent to an output device (such as speakers); however, a buffer may be used when data is moved between processes ...
Some architectures such as PowerPC attempt to avoid the need for cacheline locking or scratchpads through the use of cache control instructions.Marking an area of memory with "Data Cache Block: Zero" (allocating a line but setting its contents to zero instead of loading from main memory) and discarding it after use ('Data Cache Block: Invalidate', signaling that main memory didn't receive any ...
9) Pad switch (compression) 10) Wiper 11) Oil seal assembly, and shock seal 12) Negative buffer pad or limit switch (extension) 13) Piston with sliding blades and seal. The principal design alternative to the twin-tube form has been the mono-tube shock absorber which was considered a revolutionary advancement when it appeared in the 1950s.
In digital electronics, a tri-state or three-state buffer is a type of digital buffer that has three stable states: a high output state, a low output state, and a high-impedance state. In the high-impedance state, the output of the buffer is disconnected from the output bus, allowing other devices to drive the bus without interference from the ...
Very early rolling stock had "dummy buffers", which were simple rigid extensions of the frame, but they were improved with the use of rubber pads behind the buffer face [3] and later by enclosed mechanical, then hydraulic, springs to damp possible jarring. Each chain incorporates both a hook and a turnbuckle.