Jump Instruction, JMP, JC, JNC, JP, JM, JZ, JNZ, JPE, JPO

1. JMP: -  (unconditionally jump) The program sequence is transferred to the memory location specified by the16-bit address given in the operand.
Eg: - JMP 2034H ( jump to location 2034H) there is no condition to jump.
         JMP ABC (jump to abc level)



2. JC: - (conditional jump)  The program sequence is transferred to a particular level or a 16-bit address if C=1 (or carry is 1)
  


Eg: - JC ABC (jump to the level abc if C=1)



3. JNC:- (conditional jump) The program sequence is transferred to a particular level or a 16-bit address if C=0 (or carry is 0)

 Eg: JNC ABC (jump to the level abc if C=0)



4. JP: - (conditional jump) The program sequence is transferred to a particular level or a 16-bit address if S=0 (or sign is 0)

 Eg: - JP ABC (jump to the level abc if S=0)


 5. JM: - (conditional jump) The program sequence is transferred to a particular level or a 16-bit address if S=1 (or sign is 1)

 Eg: - JM ABC (jump to the level abc if S=1)



6. JZ: - (conditional jump) The program sequence is transferred to a particular level or a 16-bit address if Z=1 (or zero flag is 0)

 Eg: - JZ ABC (jump to the level abc if Z=1)


 7. JNZ: - (conditional jump) The program sequence is transferred to a particular level or a 16-bit address if Z=0 (or zero flag is 0)

 Eg: - JNZ ABC (jump to the level abc if Z=0)



8.JPE: -  (conditional jump) The program sequence is transferred to a particular level or a 16-bit address if P=1 (or parity flag is 1)

 Eg: - JPE ABC (jump to the level abc if P=1)



9. JPO: -  (conditional jump) The program sequence is transferred to a particular level or a 16-bit address if P=0 (or parity flag is 0)

 Eg: - JPO ABC (jump to the level abc if P=0)


27 comments:

  1. Pashim Sanchar26 January 2016 at 20:42

    good thanks for information.

    ReplyDelete
  2. Unknown7 April 2016 at 19:44

    This comment has been removed by the author.

    ReplyDelete
    Replies
    1. Anonymous30 May 2016 at 08:58

      opppppppppppppps

      Delete
    2. Unknown28 July 2016 at 02:07

      why ooooooooppppppps

      Delete
    3. Mahodar9 January 2017 at 17:13

      When is P=1?

      Delete
    4. Kushal31 January 2018 at 23:39

      If the bit no. of 1's in a bit stream is positive.
      1. e.g.
      00110011 here you can see the no. of 1's is 4 which is an even number then parity bit will be 1 [p=1].
      2. e.g. 00000000 here you can see the of 1's is 0 which is positive then parity bit will be 1 [P=1].

      Delete
  3. Naina11 October 2016 at 23:46

    Thanks:)
    For info

    ReplyDelete
  4. Naina11 October 2016 at 23:47

    Thanks:)
    For info

    ReplyDelete
  5. Solitary Writer27 November 2016 at 02:18

    edit suggestion-- In 6th point it should be "zero flag is 1" in the bracket
    " 6. JZ: - (conditional jump) The program sequence is transferred to a particular level or a 16-bit address if Z=1 (or zero flag is 0)".

    ReplyDelete
  6. ANSHU KUMAR3 December 2016 at 08:47

    This comment has been removed by the author.

    ReplyDelete
  7. Harsh Saxena27 December 2016 at 03:41

    Booble

    ReplyDelete
  8. Harsh Saxena27 December 2016 at 03:41

    Booble

    ReplyDelete
  9. Mahodar9 January 2017 at 17:11

    When parity flag is 1

    ReplyDelete
    Replies
    1. Sandesh GC17 March 2022 at 09:57

      This comment has been removed by the author.

      Delete
  10. Rio9 April 2017 at 22:14

    what about jb and ja

    ReplyDelete
  11. Unknown21 July 2017 at 06:17

    What is meant by je ??

    ReplyDelete
  12. karan niketan dixit (analog engineer)29 August 2017 at 12:40

    Jnz means jump not zero so when the condition is true means when jnz is not zero the it will go at abc and if jnz =0 it leaves the loop

    ReplyDelete
  13. Unknown2 September 2017 at 04:00

    Nice information

    ReplyDelete
  14. pulkit17 September 2017 at 05:06

    oppai lol

    ReplyDelete
  15. Unknown5 April 2018 at 10:27

    Features of 80386
    Data Design
    AMP Module
    Virtual Mode 80386
    Design: Linker
    Distributed Operating System Design Issues
    Features 80486
    Time Shared Common bus Interconnection Structures

    ReplyDelete
  16. Unknown5 April 2018 at 10:27

    Quadruple representation
    Mapping Instruction
    Design: Macro Assembler
    Algorithm for Adding alpha-beta Cutoffs
    Priority Interrupt
    Representation of Simple Facts Logic
    Macro Definition and Call
    Life Cycle: Source Program
    Linked List vs Array
    Direct View Storage Tubes (DVST)

    ReplyDelete
  17. Unknown15 May 2020 at 01:54

    Little helpful but nice

    ReplyDelete
  18. Unknown11 June 2020 at 08:14

    Good bery helpful and easy to understand :-)

    ReplyDelete
  19. Unknown9 June 2021 at 22:31

    Zero flag 1 line needs to be modified, please take a look

    ReplyDelete
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    ReplyDelete