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> Of course having the microarchitecture and instruction set tightly married is a problem but considering we have a fairly alive ARM marketplace of varying inst
by wolfgke 8y ago
> Of course having the microarchitecture and instruction set tightly married is a problem but considering we have a fairly alive ARM marketplace of varying instruction sets from ARM, I think it's not unsolvable from the compilation direction and you can abstract out some details so porting is easier or you can atleast emulate the other CPU with high efficiency.
At least the first Itanium also had hardware emulation for x86 code. It was really slow (which gave AMD a strong competitive advantage at that time and enabled them to establish x86-64).