Memory is used by the processor as a storage room for data and instructions. We have already discussed registers, which are high-speed access storage places. Accessing memory is a lot slower than accessing registers. But the number of registers is limited. The memory size has a theoretical limit of 264 addresses, which is 18,446,744,073,709,551,616, or 16 exabytes. You cannot use that much memory because of practical design issues! It is time to investigate memory in more detail.
Exploring Memory
Listing 8-1 shows an example we will use during our discussion of memory.
; memory.asm
section .data
bNum db 123 ...
