The document summarizes the registers in the Intel 8086 microprocessor architecture. It describes the 4 general purpose registers (AX, BX, CX, DX), 4 segment registers (CS, SS, DS, ES), 2 pointer registers (SP, BP), 2 index registers (SI, DI), the instruction pointer register (IP), and the flag register. The general purpose registers include the accumulator (AX), base (BX), counter (CX), and data (DX) registers. The segment registers contain the starting addresses of the 4 separate 64kb memory segments for code, stack, data, and extra data.

1. REPRESENTED BY
ANKUSH PATEL AND ANOOP KUMAR
SUBMITTED TO
MR.PRASHANT SINGH BHADORIA

2. 
 4 general purpose rgisters(data registers)
 4 segment registers
 2 pointer registers
 2 index registers
 1 instruction pointer register
 1 flag register
In the programming
model there are

3. 
1) AX register(accumulator)
2) BX Register(base register)
3) CX Register(counter register)
4) DX Register(data register)
General purpose
registers:

4. 
• Code segment register(CS): it is a 16 bit register
containing the starting address of 64 kb segment.
• Stack segment register(SS): it is a16 bit register containing
address of 64 kb segment with program stack.
• Data segment register(DS):it is a 16 bit register containing
address of 64 kb segment with program data.
• Extra segment register (ES): it is a 16 bit register
containing address of 64 kb segment ,usually with
program data.
Segment registers

5. 
 SP register(stack pointer)
 BP register(base pointer)
 SI register(source index)
 DI Register(destination index)
Pointer registers

6. 
 The instruction pointer(IP) points to the address of
the next instruction to be executed.
Instruction pointer
register

7. 
 Status flag determines the current state of the
accumulator .They are modified automatically by
CPU after mathematical operations .This allows to
determine the type of the result .
Flag register

8. 
THANK YOU