What is VLIW used for?
Very long instruction word (VLIW) describes a computer processing architecture in which a language compiler or pre-processor breaks program instruction down into basic operations that can be performed by the processor in parallel (that is, at the same time).
What does VLIW mean?
Very long instruction word
Very long instruction word (VLIW) refers to instruction set architectures designed to exploit instruction level parallelism (ILP).
What is 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.
How does a VLIW processor work?
VLIW uses Instruction Level Parallelism, i.e. it has programs to control the parallel execution of the instructions. The programs decide the parallel flow of the instructions and to resolve conflicts. This increases compiler complexity but decreases hardware complexity by a lot.
Which DSP family has VLIW architecture?
VLIW architecture is now widely used in commercial process designs, such as NXP’s TriMedia media processors, Analog Devices’ SHARC DSP, Texas Instruments’ C6000 DSP family, STMicroelectronics’ T200 family based on the Lx architecture, Tensilica’s Xtensa LX2 processor, and Intel’s Itanium IA-64 EPIC, in both the …
What is length of word in VLIW?
⁻ Typical word length is 64 – 1024 bits, much longer than conventional machine word length.
What is the difference between VLIW and superscalar?
A superscalar processor is invented to produce an execution cost of higher than one instruction per clock cycle for an individual sequential program….Superscalar Processor.
| VLIW Architecture | Superscalar Processor |
|---|---|
| VLIW is used for static scheduling. | Superscalar is used for dynamic scheduling. |
Is VLIW CISC or RISC?
VLIW instructions are like RISC instructions except that they are longer to allow them to specify multiple, independent simple operations. A VLIW instruction can be thought of as several RISC instructions joined together. The implementation of this function in CISC, RISC, and VLIW code is also shown.