VLIW means Very Large *Instruction Word*. It is a property of the instruction se... | Hacker News

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atq2119 on Dec 31, 2024 | parent | context | favorite | on: Execution units are often pipelined

VLIW means Very Large Instruction Word. It is a property of the instruction set, not of the processor that implements it.

You could have a VLIW ISA that is implemented by a processor that "unrolls" each instruction word and mostly executes the constituent instructions serially.

tliltocatl on Dec 31, 2024 [–]

Also you can have out-of-order VLIW. Later Itaniums were like that, because turns VLIW doesn't help much with random memory access latency.

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