As mentioned previously, the CPU contains special storage called registers. The CPU can access data in registers much faster than data in memory, because of which the values fetched from the memory are temporarily stored in these registers to perform operations.
2. CPU Registers
2.1 General-Purpose Registers
The x86 CPU has eight general purpose registers: eax, ebx, ecx, edx, esp, ebp, esi, and edi. These registers are 32 bits (4 bytes) in size. A program can access registers as 32-bit (4 bytes), 16-bit (2 bytes), or 8-bit (1 byte) values. The lower 16 bits (2 bytes) of each of these registers can be accessed as ax, bx, cx, dx, sp, bp, si, and di. The...
