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mdl, aka Microarchitecture Description Language, is an instruction set architecture created in 2019 by Reid Tatge.

#1695on PLDB 5Years Old
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We’ve created a DSL and compiler for modeling micro-architecture that handles a very broad class of architectures - CPU, GPUs, VLIWs, DSPs, ML accelerators, and embedded devices. This effort grew out of a need to quickly develop and experiment with high-quality compilers and tools to facilitate rapid architecture exploration. We named the DSL “MDL” for “Microarchitecture Description Language”

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