VLIW : Java Glossary


VLIW (Very Long Instruction Word). Intel is working on a new type of CPU (Central Processing Unit) that uses very long instruction words instead of microcode. The instruction words give it hints on branch prediction etc. The processors are very fast, but need recompilation even for different variants of same processor. Its as if you needed a totally different exe file for 80386, 80486, Pentium and Pentium Pro processors. The Java JIT (Just In Time) solves the code distribution problem neatly, since the common JVM (Java Virtual Machine) class files can be compiled as the last minute into the required VLIW format.

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