> 1) ... perform the operation in 32-bit registers - if available - and even if available, usually far far far fewer in number False for x86-64. There are sixt

> 1) ... perform the operation in 32-bit registers - if available - and even if available, usually far far far fewer in number False for x86-64. There are sixteen 32-bit general-purpose registers: eax, ebx, ..., r8d, ..., r16d. There are sixteen 64-bit registers too: rax, rbx, ..., r8, ..., r16.