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assembly pgm-selection sort

Discussion in 'Assembly Language Programming (ALP) Forum' started by nits, Oct 20, 2009.

  1. nits

    nits New Member

    please tell me how 2 write an assembly program to perform selection sorting??
     
  2. xpi0t0s

    xpi0t0s Mentor

    Where are you stuck? What code have you got so far?
     
  3. nits

    nits New Member

    LXI H,2500H
    MOV C,M
    L3: DCR C
    JZ L4
    MOV B,C
    LXI H,2501
    L2: MOV A,M
    INX H
    CMP M
    JNC L1
    MOV D,M
    MOV M,A
    DCX H
    MOV M,D
    INX H
    L1: DCR B
    JNZ L2
    JMP L3
    L4:RST 1





    Is this wrong????? the program is going on an infinite loop
     
  4. xpi0t0s

    xpi0t0s Mentor

    Then yes, I would say it is wrong.

    Are you sure it's an infinite loop? If L4 is the exit point (what does RST 1 do?) then the condition for reaching that point is where C is decremented to zero, and since there is nothing that otherwise modifies C then this should eventually happen.

    It would help if the code were commented. Then I could understand what you're trying to do at each point.
     

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