What are the advantages of VLIW processor?

What are the advantages of VLIW processor?

Advantages of VLIW are:

• Performance similar to CISC and RISC.
• Reduced hardware complexity over a superscalar implementation.
• Uses instruction level parallelism to the fullest.
• VLIW is a simpler way to build a superscalar microprocessor.

What are the pros and cons of VLIW architecture?

VLIW Advantages & Disadvantages (aot SS)

• Programmer/compiler complexity and longer compilation times.
• Lock step operation, i.e., on hazard all future issues stall until hazard is resolved (hence need for predication)
• Object (binary) code incompatibility.
• Needs lots of program memory bandwidth.
• Code bloat.

What is the main difference between the VLIW and the other approaches to improve performance *?

The main difference between the VLIW and the other approaches to improve performance is. Explanation: The Pipe-lining and super-scalar architectures involved the usage of complex hardware circuits for the implementation. In VLIW the decision for the order of execution of the instructions depends on the program itself.

What do you understand by VLIW?

Definition. VLIW (Very Long Instruction Word) is a CPU architectural style that offers large amounts of irregular instruction-level parallelism (ILP) by overlapping the execution of multiple machine-level operations within a single flow of control.

Who invented VLIW architecture?

Josh Fisher
The concept of VLIW architecture, and the term VLIW, were invented by Josh Fisher in his research group at Yale University in the early 1980s. His original development of trace scheduling as a compiling method for VLIW was developed when he was a graduate student at New York University.

What are the disadvantages of VLIW architecture?

Complex compilers are required which are hard to design. Increased program code size. Larger memory bandwidth and register-file bandwidth. Unscheduled events, for example a cache miss could lead to a stall which will stall the entire processor.

Which is not a CISC machine?

Explanation: Motorola A567 is not a CISC machine.

Which is the important feature of VLIW?

VLIW stands for? Explanation: It is the architecture designed to perform multiple operations in parallel. Explanation: ILP stands for Instruction Level Parallelism. Explanation: The Pipe-lining and super-scalar architectures involved the usage of complex hardware circuits for the implementation.

What is the full form of VLIW in DSP?

Very Long Instruction Word (VLIW) architecture in P-DSPs (programmable DSP) increases the number of instructions that are processed per cycle. It is a concatenation of several short instructions and requires multiple execution units running in parallel, to carry out the instructions in a single cycle.