assembly 8086 array indexing in a loop

Asked Nov 23 '17 at 09:22

Active Nov 23 '17 at 09:37

Viewed 288 times

im new to assembly and curently trying to create a program thet couculates the first 10 Fibonacci numbers.

IDEAL
MODEL small
STACK 100h
DATASEG
fibo db 10 dup (0)
indx db 2
indxm db 1
CODESEG
start:
     mov ax, @data
     mov ds, ax
     mov [fibo+1], 1
     mov bx, 0
     mov cx, 8
next:
     mov ax, [fibo+indxm] ;here is the problem
     add [fibo+indx], ax ;also here
     inc indx
     inc indxm
     loop next 
exit:
     mov ax, 4c00h
     int 21h
END start

it doesnt work. how can i fix it???

edited Nov 23 '17 at 09:37

asked Nov 23 '17 at 09:22

avrum

1

And what is your question? – Jesper Nov 23 '17 at 09:23
1

Please be more specific — what is the question or issue exactly? – l'L'l Nov 23 '17 at 09:23
You can't add two memory addresses directly in x86 architecture, `add fibo[ind], fibo[indm]` – Zahid Khan Nov 23 '17 at 09:33
i fixed it but there is still the other problem. btw im using 8086 – avrum Nov 23 '17 at 09:39
1

don't use memory as index, you cannot access [ + [ – Tommylee2k Nov 23 '17 at 09:48
it's pretty much unclear what you want to archive. a bit more info would be helpful – Tommylee2k Nov 23 '17 at 09:51
thank you very much Tommylee2k problem solved! – avrum Nov 23 '17 at 10:02

assembly 8086 array indexing in a loop

0 Answers0