Most memory is data. Code density is important, but you can just double the icache. Given that icache is often smaller than dcache, it seems that's not the maj

Most memory is data. Code density is important, but you can just double the icache. Given that icache is often smaller than dcache, it seems that's not the major bottleneck. Also, if code density is so important, why did arm drop Thumb when they switched to 64bit?