3.4 Sum of every row and column into last column and row

;Given thw following table of word:
;  154  123   109  86    4   ?
;  412  -23  -231   9   50   ?
;  123  -24    12  55  -45   ?
;    ?    ?     ?   ?    ?   ?

;Implement the program that writes the sum of every row and column respectively into last column and last row

R EQU 4
C EQU 6
.MODEL small
.STACK
.DATA
table DW 154,123,109,86,4,?
      DW 412,-23,-231,9,50,?
      DW 123,-24,12,55,-45,?
      DW C DUP (?)
var DW ?
.CODE
.STARTUP
MOV BX,0
MOV DI,0
MOV AX,0
MOV CX,C-1   ;CX and DX are used like counters to go out from cycles
MOV DX,R-1
ciclo1:

       ciclo11:
              ADD AX,table[BX][DI]
              ADD DI,2
              DEC CX
              CMP CX,0
              JNE ciclo11
       MOV table[BX][DI],AX  ;Since before that I go out from jump I did DI+2, now I write the result in that position of matrix, where there is ?
       MOV DI,0
       MOV AX,0
       ADD BX,C*2 ;IMPORTANT! Must be BX=C*2, that is the offset from a row of matrix to the other. C*2 because the matrix is a DW. If it was a BYTE, I would have added at BX only C
                  ;So the offset between rows of a given matrix DW is: BX=2*NumColumns
       MOV CX,C-1
       DEC DX
       CMP DX,0
       JNE ciclo1

MOV BX,0
MOV DI,0
MOV AX,0
MOV CX,C  ;C, not C-1 because now I have also the last column that before had the ?
MOV DX,R-1
ciclo2:

       ciclo22:
               ADD AX,table[BX][DI]
               ADD BX,C*2
               DEC DX
               CMP DX,0
               JNE ciclo22
       MOV table[BX][DI],AX
       MOV DX,R-1 ;C, not C-1 because now I have also the last column that before had the ?
       MOV BX,0
       ADD DI,2
       MOV AX,0
       DEC CX
       CMP CX,0
       JNE ciclo2
.EXIT
END