*'''Pointer and Index Registers:''' SP (stack pointer), BP (base pointer), SI (source index), and DI (destination index) used for addressing and data manipulation.
*'''Segment Registers:''' CS (code), DS (data), SS (stack), and ES (extra) which define the memory segments for program code, data, and the stack.
*'''Instruction Pointer and Flags:''' A 16‑bit instruction pointer (IP) and a 16‑bit status register that includes six status flags (such as zero, carry, sign, overflow, parity, and auxiliary carry) to indicate the outcomes of operations. It also contains three control flags: the Direction Flag, which controls the direction in which string instructions act: 0 for going up in addresses, the interruput flag to enable/disable interrupts and 1 the trap flag for going downsingle-step debugging.
== Instruction Set ==