dest := source;

    memcpy(dest, src, size);

    obj.set(0);

Some have load/store instructions where the memory is always on one side:

    load [r1], r3   ; --> direction
    store [r1], r3  ; <-- direction

This is the Intel syntax and it is the most popular for doing x86 assembly.

The other syntax, the AT&T syntax, works the other way ("mov $0, %esp" puts 0 into esp).

  movl $1, %esp

  xor reg,reg

  sub reg,reg