It would be hard because traditionally most of our hardware relies on the register memory model. Implementing a hardware stack can be done but there are very fe

It would be hard because traditionally most of our hardware relies on the register memory model. Implementing a hardware stack can be done but there are very few silicon CPUs like that thus a lot of the research which has been done on getting register machines up to speed in terms of caching and speculation could be difficult. Then there is the fact that webassembly doesn't use branch labels rather it uses blocks, which AFAIK have never actually been used on traditional CPU hardware. People have tried to create high level language CPUs but often failed in terms of performance. An overview can be found here: https://en.wikipedia.org/wiki/High-level_language_computer_architecture https://en.wikipedia.org/wiki/High-level_language_computer_a...