Assembly language Learning Series for loop implementation

If the assembly language to achieve the following C language functions, the compilation environment Ubuntu14.04 (32-bit).

#include <stdio.h>intFact_for (intN) {    inti; intresult =1;  for(i =2; I <= N; i++) Result*=i; returnresult;}intMain () {printf ("%d\n", Fact_for (3)); return 0;}

• Code FOR.S

. Section. DataN:.int 3        format:. Asciz"%d\n". Section. Text.global _start_start:PUSHL%ebp movl%esp,%EBP Subl $8,%esp movl N,%ecx movl%ecx, (%ESP)Pagerfact_for pushl%eax pushl $formatPagerprintf MOVL $0, (%ESP)PagerExitfact_for:PUSHL%ebp movl%esp,%ebp pushl%ebx movl8(%EBP),%edx #get n movl $1,%eax #init result MOVL $2,%ecx #init iCMP%ecx,%edxJL. Done.Loop:        Imul%ecx,%eaxInc%ecxCMP%ecx,%edxJge. Loop.Done :popl%ebx popl%ebpret        

• Compile

As For.s-o FOR.O

• Link

Ld-lc-i/lib/ld-linux.so.2 For.o-o for

• Perform

./for

Assembly language Learning series for loop implementation