> On x86 things were different because the 64-bit ABI also provided access to more registers and other benefits, but as far as I know, the 32-bit mode has the s

> On x86 things were different because the 64-bit ABI also provided access to more registers and other benefits, but as far as I know, the 32-bit mode has the same features as 64-bit on ARM. It doesn't. 64-bit arm has 31 GPRs. It also has much cleaner decode and some low-end cpus that can do it and 32-bit execute it faster than they do 32-bit code.