...mapped registers and variables set by interrupt handlers. Setting/clearing individual bits in registers sometimes...

...simple embedded systems where you
only access registers. Nobody's going to use D if...

...and even carry more into the CPU registers for tight algorithms which (theoretically) would beat...

...implementation detail, just like the existence of registers, memory caches, and the stack. Those things...

...some work...

This helps with getting the registers on the stack, but we still need...

...destruction.

- Variables on the stack and in registers. In theory, the compiler could generate that...

...what is most efficient and how many registers you use etc.

Abstractions hide what is...

...lets the compiled code use 64 bit registers and ints are now 64 bit then...

...I'd much rather have it limited to registers (conceptually) if that means faster GC.

...under 64 bit, but also 64 bit registers, 16 of them , not just 8 32...