Computer Architecture
The Anatomy of Modern Processors


VLIW Processors

Very Long Instruction Word (VLIW) processors have instruction words with fixed "slots" for instructions that map to the functional units available. This makes the instruction issue unit much simpler, but places an enormous burden on the compiler to allocate useful work to every slot of every instruction.

A hypothetical VLIW processor with two FP units, an integer ALU, a branch processor and a load/store unit

Intel/HP's Merced


Additional References

Continue on to Parallel Processors
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© John Morris, 1998