changing PROC in my assembly program is not changing values of the NUMS table.

Tables$-$

NUMS WORD $09$EEBh, $0$B$0$CFh$,061$E$5$h$,089$EDh, $0$AF$17$h$,0$D$8$D$1$h$,06$C$1$Dh$,0594$Eh$,0$CF$55$h

WORD $03767$h$,063$C$6$h$,0$AE$84$h$,0412$Fh$,0$B$226$h$,046$C$1$h$,0879$Bh$,076$B$6$h$,093$FFh

WORD $0$AFFFh, $05$B$8$Fh$,06164$h$,01$CF$7$h$,09$A$41$h$,0$A$525$h$,0$A$5$A$1$h$,08$F$05$h$,07$E$4$Ch

WORD $0827$Ah$,090$B$0$h$,0722$Dh$,0$BCCFh$,033$ABh, $0$DC$76$h$,085$B$6$h$,0$AA$5$Fh$,03$FB$3$h

WORD $04$BACh, $0$B$822$h$,07768$h$,0$BF$1$Bh$,05783$h$,07$EEBh, $09$F$22$h$,0$B$85$Bh$,05312$h

WORD $05971$h$,0$B$1$B$6$h$,0$B$16$Dh$,054$B$3$h$,073$C$8$h$,0586$Bh$,08170$h$,06$F$16$h$,092$A$0$h

WORD $09680$h$,0$A$23$Bh$,0$B$45$Dh$,01$E$91$h$,0415$Ah$,0$B$5$D$9$h$,02$D$02$h$,06748$h$,03$D$39$h

CHANGES WORD $4,3,0000$Ch$,0,8,00013$h$,3,6,000$CAh, $5,8,009$Fh$,4,6,004$Ah

WORD $0,3,00$B$8$h$,5,2,00$B$3$h$,1,3,00$E$1$h$,5,5,009$Dh$,4,1,000$Dh

WORD $3,5,00$C$1$h$,2,8,00$BFh$,3,4,0020$h$,1,4,000$Ah$,4,6,001$Ah

WORD $1,5,00$F$1$h$,2,3,00$FEh, $1,5,003$Eh$,6,3,00$FAh, $0,5,0008$h

main PROC$-$

$.$ code

main PROC ; control section of program

call printPromptNT

call printing ; Print unsorted output in $7$ x $9$ table format

call printPromptST

call sorting ; sort each row of NUMS table separately

call printing ; Print sorted output in $7$ x $9$ table format

call printPromptCT

call changing ; read CHANGES, add value to NUMS table

call printing ; Print changed output in $7$ x $9$ table format

COMMENT @

call printPromptSWT

call switching ; read SWITCHES, exchange NUMS table values

call printing ; Print switched output in $7$ x $9$ table format

@

exit

main ENDP

changing PROC$-$

changing PROC ; read CHANGES, add value to NUMS table

mov cx$,20$

mov eax, $0$

mov edx, $0$

change$\_$loop:

mov dx$,[$CHANGES$]$

mov si$,[$CHANGES $+1]$

mov ax$,$ WORD PTR $[$CHANGES $+2]$

call location

add $[$NUMS $+$ bx$],$ ax

add CHANGES, $3$

loop change$\_$loop

ret

changing ENDP

printing PROC$-$

printing PROC ; Print NUMS in a $7$ x $9$ table format

mov ecx, $7$

mov esi, OFFSET NUMS

row$\_$loop:

push ecx

mov ecx, $9$

column$\_$loop:

mov eax, $0$

mov eax, $[$esi$]$

mov ebx, TYPE WORD

call WriteHexB

mov edx, OFFSET space

call WriteString

add esi, $2$

loop column$\_$loop

pop ecx

loop row$\_$loop

mov edx, OFFSET newline

call WriteString

ret

printing ENDP

location PROC$-$

location PROC ; given row and column, calculate NUMS location

mov bx$,$ dx

imul bx$,18$

imul si$,2$

add bx$,$ si

ret

location ENDP