; loopint.asm  code loopint.c for nasm 
; /* loopint.c a very simple loop that will be coded for nasm */
; #include <stdio.h>
; int main()
; {
;   int dd1[100];
;   int i;
;   dd1[0]=5; /* be sure loop stays 1..98 */
;   dd1[99]=9;
;   for(i=1; i<99; i++) dd1[i]=7;
;   printf("dd1[0]=%d, dd1[1]=%d, dd1[98]=%d, dd1[99]=%d\n",
;           dd1[0], dd1[1], dd1[98],dd1[99]);
;   return 0;
;}
; execution output is dd1[0]=5, dd1[1]=7, dd1[98]=7, dd1[99]=9
 
	section	.bss
dd1:	resd	100
i:	resd	1		; actually unused, kept in register

	section .text
	global main
main:	mov dword [dd1],5	; dd1[0]=5;
	mov dword [dd1+99*4],9	; dd1[99]=9;

	mov edi,4		; i=1; /* 4 bytes */
loop1:	mov dword [dd1+edi],7	; dd1[i]=7;
	add edi,4		; i++; /* 4 bytes */
	cmp edi,4*99		; i<99
	jne	loop1		; loop until i=99
	
        extern	printf		; the C function, to be called
        section .data		; Data section, initialized variables
fmt:    db "dd1[0]=%d, dd1[1]=%d, dd1[98]=%d, dd1[99]=%d",10,0

	section .text           ; Code section, continued
	push	dword [dd1+99*4]	; dd1[99]
        push    dword [dd1+98*4]	; dd1[98]
	push	dword [dd1+4]	; dd1[1]
        push    dword [dd1]	; dd1[0]
        push    dword fmt	; address of format string
        call    printf		; Call C function
        add     esp, 20		; pop stack 5 push times 4 bytes

	mov	eax,0		; normal, no error, return value
	ret			; return 0;
				; no registers needed to be saved