SUPERSCALAR AND VLIW PROCESSORS



What is a Superscalar Architecture?
• A superscalar architecture is one in which several
instructions can be initiated simultaneously and
executed independently.
• Pipelining allows several instructions to be
executed at the same time, but they have to be in
different pipeline stages at a given moment.
• Superscalar architectures include all features of
pipelining but, in addition, there can be several
instructi ....etc

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SHRIDHAN manufactures products that are customized to the need of the customer. Different products have different dimensions, length and physical features. ....etc

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¢ VLIW
ARCHITECTURE
¢ Increasing Processor Performance
Semiconductor Technology
Parallel Processing
Multiprocessors, Multicomputers
Parallelism within the Processor
Pipelining
ILP
¢ ILP (Instruction Level Parallelism)
Parallel Execution of Instructions.
Overlapping of instructions
ILP processors
Superscalar processors
VLIW processors.
¢ Scalar Processors
Fetching and executing an instruction at a time
A program represents a plan of execution.
The ....etc

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Abstract—
High-definition video applications, such as digital
TV and digital video cameras, require high processing performance
for high-quality visual images in addition to a complex
video CODEC. Pre-/postprocessing to improve video quality
is becoming much more important because requirements for
pre-/postprocessing vary among applications and processing
algorithms have not been stabilized. Therefore, a new processor
architecture that has a highly parallel datapath is needed. In this
paper, we introduce a VLIW vector media c ....etc

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Abstract
Modern FPGA chips, with their larger memorycapacity and reconfigurability potential, are opening newfrontiers in rapid prototyping of embedded systems. Withthe advent of high density FPGAs it is now possible toimplement a high performance VLIW processor core in anFPGA. Architecture based on Very Long Instruction Word(VLIW) processors are an optimal choice in the attempt toobtain high performance level in embedded system. In VLIWarchitecture ,the effectiveness of these processors dependson the ability of compilers to provide suf ....etc

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Abstract

Opportunistic networks are one of the most interesting evolutions of MANETs. In opportunistic networks, mobile nodes are enabled to communicate with each other even if a route connecting them never exists. Furthermore, nodes are not supposed to possess or acquire any knowledge about the network topology, which is instead necessary in traditional MANET routing protocols. Routes are built dynamically, while messages are en route between the sender and the destination(s), and any possible node can opportunistically be used as ....etc

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Abstract—In-network data aggregation is a useful technique to reduce redundant data and to improve communication efficiency. Traditional data aggregation schemes for wireless sensor networks usually rely on a fixed routing structure to ensure data can be aggregated at certain sensor nodes. However, they cannot be applied in highly mobile vehicular environments. In this paper, we propose an adaptive forwarding delay control scheme, namely Catch-Up, which dynamically changes the forwarding speed of nearby reports so that they have a better chan ....etc

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Modular VLIW Processor Based on FPGA
Modern FPGA chips, with their larger memory capacity and reconfigurability potential, are opening new frontiers in rapid prototyping of embedded systems. With the coming of high density FPGAs, it is now possible to implement a high performance VLIW processor core on an FPGA. Very Long Instruction Word(VLIW) processors are often used in the embedded systems design domain to obtain high performance. The compilers must provide sufficient level parallelism(ILP) in program code so that the performance ....etc

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