Final answer:
The size of a memory address on stdlinux depends on the system architecture, with 64-bit being the most common, leading to the use of a 'l' suffix and 64-bit registers for address calculations.
Step-by-step explanation:
On stdlinux, which is a typical university-provided Linux environment, the size of a memory address usually depends on whether the system is running a 32-bit or 64-bit architecture. For a 32-bit architecture, addresses are 32 bits (4 bytes) long, and for a 64-bit architecture, addresses are 64 bits (8 bytes) long. As most contemporary educational systems use a 64-bit architecture, you will mostly encounter 64-bit addresses. Consequently, when working with addresses, you should use the suffix that corresponds to the size of an address on your system. For 64-bit systems, this suffix is 'l', indicating a long integer in assembly language.
Therefore, when calculating addresses, you should be using 64-bit registers, such as RAX, RBX, RCX, etc. in a 64-bit architecture. This approach ensures compatibility with the memory addressing capabilities of the system you are using.