The architecture realm of VLIW processor

Very Long Instruction Word (VLIW) architectures can enhance performance by exploiting fine-grained instruction level parallelism. The energy efficiency of the VLIW architecture is determined by the underlying hardware and compiler technologies. In VLIW (very long instruction word) architectures, an instruction word consists of a variable number of individual instructions. VLIW architectures are distinct from traditional RISC and CISC architectures implemented in current mass-market microprocessors. VLIW microprocessors and superscalar implementations of traditional instruction sets share some characteristics like multiple execution units and the ability to execute multiple operations simultaneously. VLIW implementations are simpler for very high performance. Just as RISC architectures permit simpler, cheaper high-performance implementations than do CISCs, VLIW architectures are simpler and cheaper than RISCs because of further hardware simplifications. VLIW architectures, however, require more compiler support