The register Organization of 8086 processor

The 8086 has a powerful set of registers. It includes general purpose registers, segment registers, pointers and index registers and flag register. It is also known as Programmer’s model.
General purpose registers:

 The 8086 has Four 16 bit general purpose registers.
 AX , BX, CX, DX
 Each register split into two 8 bit registers
 AL – Lower byte, AH- Higher byte.

Segment registers: 16 bit address
 Code segment
 Data segment
 Stack segment
 Extra segment

Pointers and index registers:
 Base pointer
 Index pointer
 Source pointer
 Source index
 Destination index

Flag Registers:
 Carry Flag
 Parity Flag
 Auxiliary Flag
 Zero Flag
 Sign Flag
 Overflow Flag

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