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The first program is to count the number of zeros in $3855. Please     add comments to...

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Programming

The first program is to count the number of zeros in$3855. Please

    add comments to eachline

         

      org   $1000

array     db $38, $55 ; data to betested

          

          org$1100

zero_cnt ds.b   1

lp_cnt     ds.b   1

            org   $1500

            clr  zero_cnt       ;initialize the 0count to 0

            movb#16,lp_cnt     

            ldd  array        

again     lsrd

           bcs  chk_end         ;

           inc   zero_cnt

chk_end   dec  lp_cnt              

           bne  again                  

           swi             

           end

Answer & Explanation Solved by verified expert
4.1 Ratings (731 Votes)
org 1000 set the location counter to 1000 array db 38 55 data to be tested initializes 2 bytes in memory to 38 55 and the assembler will use array as the symbolic address of    See Answer
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