The code below works, but I wanted to know why it works, since to my knowledge, this code:

mov $[$array $+$ eax$],$ ebx

mov ecx, $[$array $+$ eax$]$

found under loop$\_$start, should need to be:

mov $[$array $+$ eax $*4],$ ebx

mov ecx, $[$array $+$ eax $*4]$

And in other code I have written, I have had to do that, with the lack of a $"*4"$ making the code not work. In this case, however, the opposite is true, and I have to remove the $"*4"$ for the code to give the intended output. If I leave the $"*4",$ the loop stops counting at $10,$ even though it is meant to count to $20.$ This is odd because the code above doesn't even touch the counter variable. The full code is below, please advise.

extern printf ; the C function, to be called

global main ; the standard gcc entry point

section $.$bss ; BSS$,$ uninitialized identifiers

array resw $20$

count resd $1$

value resd $1$

section $.$data ; Data section, initialized identifiers

fmt db "Array index: $\%$d Value: $\%$d$",10,0$

section $.$rodata ; Read$-$only section, immutable identifiers

section $.$text ; Code section.

main: ; the program label for the entry point

; Don't change or remove the lines of code in here $|$

push ebp ; set up stack frame $|$

mov ebp, esp ; $|$

; Don't change or remove the lines of code in here $|$

;

; Your NASM code will go in here

;

; Move number into counter and value

mov dword $[$count$],0$

mov dword $[$value$],2$

loop$\_$start:

; Compare count to $20,$ greater than or equal then end loop

cmp dword $[$count$],20$

jge loop$\_$end

; Move into array

mov eax, $[$count$]$

mov ebx, $[$value$]$

mov $[$array $+$ eax$],$ ebx

mov ecx, $[$array $+$ eax$]$

; Print output

push dword ecx

push dword $[$count$]$

push fmt

call printf

add esp, $12$

; Increment the counter

add dword $[$count$],1$

add dword $[$value$],2$

; Restart loop

jmp loop$\_$start

loop$\_$end:

; Don't change or remove the lines of code in here $|$

mov esp, ebp ; takedown stack frame $|$

pop ebp ; $|$

; $|$

mov eax, $0$ ; no error return value $|$

ret ; return $|$

; Don't change or remove the lines of code in here $|$