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A data path is a collection of functional units such as arithmetic logic units (ALUs) or multipliers that perform data processing operations, registers, and buses. [1] Along with the control unit it composes the central processing unit (CPU). [1] A larger data path can be made by joining more than one data paths using multiplexers.
The QorIQ Data Path Acceleration Architecture or QorIQ DPAA is a architecture which integrates aspects of packet processing in the SoC, thereby addressing issues and requirements resulting from the multicore nature of QorIQ SoCs. The DPAA includes Cores, Network and packet I/O as well as hardware offload accelerators.
Dataflow architecture is a dataflow-based computer architecture that directly contrasts the traditional von Neumann architecture or control flow architecture. Dataflow architectures have no program counter, in concept: the executability and execution of instructions is solely determined based on the availability of input arguments to the instructions, [1] so that the order of instruction ...
The B bus can be enabled by just one register at a time, since the transfer of data from 2 registers at the same time, would make this data inconsistent. In contrast, the C bus can be enabled by more than 1 register at the same time; as a matter of fact, the current value present in the C bus can be written to more than 1 register without problems.
Bubbling the pipeline, also termed a pipeline break or pipeline stall, is a method to preclude data, structural, and branch hazards. As instructions are fetched, control logic determines whether a hazard could/will occur. If this is true, then the control logic inserts no operation s (NOP s) into the pipeline. Thus, before the next instruction ...
Data-flow analysis is a technique for gathering information about the possible set of values calculated at various points in a computer program.A program's control-flow graph (CFG) is used to determine those parts of a program to which a particular value assigned to a variable might propagate.
Concurrency control in Database management systems (DBMS; e.g., Bernstein et al. 1987, Weikum and Vossen 2001), other transactional objects, and related distributed applications (e.g., Grid computing and Cloud computing) ensures that database transactions are performed concurrently without violating the data integrity of the respective ...
In a naive pipeline, without hazard consideration, the data hazard progresses as follows: In cycle 3, the SUB instruction calculates the new value for r10 . In the same cycle, the AND operation is decoded, and the value of r10 is fetched from the register file.