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  • Assembly之instruction之MOV

    MOV[.W]      Move source to destination
    MOV.B      Move source to destination


    Syntax     MOV   src,dst  or       MOV.W  src,dst
            MOV.B src,dst


    Operation   src −> dst


    Description

      The source operand is moved to the destination.The source operand is not affected. The previous contents of the destination are lost.


    Status Bits   Status bits are not affected.


    Mode Bits   OSCOFF, CPUOFF, and GIE are not affected.


    Example   The contents of table EDE (word data) are copied to table TOM. The length of the tables must be 020h locations.

    1        MOV #EDE,R10         ; Prepare pointer
    2        MOV #020h,R9         ; Prepare counter
    3 Loop    MOV @R10+,TOM−EDE−2(R10)  ; Use pointer in R10 for both tables
    4          DEC R9             ; Decrement counter
    5         JNZ Loop           ; Counter ≠ 0, continue copying
    6       ......             ; Copying completed
    7       ......
    8       ......

    Example   The contents of table EDE (byte data) are copied to table TOM. The length of the tables should be 020h locations

     1         MOV #EDE,R10           ; Prepare pointer
     2         MOV #020h,R9           ; Prepare counter
     3 Loop    MOV.B @R10+,TOM−EDE−1(R10) ; Use pointer in R10 for
     4                                    ; both tables
     5         DEC R9              ; Decrement counter
     6         JNZ Loop             ; Counter ≠ 0, continue
     7                               ; copying
     8         ......                ; Copying completed
     9         ......
    10         ......                                        
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  • 原文地址:https://www.cnblogs.com/mengdie/p/4512353.html
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