Write an assembly language

Project 4 Tip - Loading Array.html

This code can be used to load a reviewer’s score into the array of movie reviews:

 

    ; Insert score at reviews[rowIndex][colIndex]

    mov      edx,rowSize           ; row size in bytes

    mov      eax,rowIndex          ; row index

    mul      edx                   ; row index * row size

    mov      index,eax             ; save row index * row size

    mov      eax,colIndex          ; load col index

    shl      eax,2                 ; eax = colIndex * 4

    add      eax,index             ; eax contains offset

    mov      edx,score             ; edx = reviewer's score

    mov      ebx,OFFSET reviews    ; array of review scores

    mov      [ebx + eax],edx       ; Store score for movie

 

Section 9.4 of your textbook deals with two-dimensional arrays. There is even an example showing how to calculate a row sum. You may be able to adapt this example to calculate a column sum.