【汇编语言实战】求三个已知数最大值

#include <stdio.h>
int main()
{
  int a=10,b=20,c=15;
  //scanf("%d %d",&a,&b);
  if(a>=b)
  {
  if(a>=c)
  {
    printf("%d",c);
  }
  else
  {
    printf("%d",a);
  }
  }
  else
  {
  if(b>=c)
  {
    printf("%d",b);
  }
  else
  {
    printf("%d",c);
  }
  }
}

include irvine32.inc
.data
num1 dword 10
num2 dword 20
num3 dword 15
max   dword ?
.code 
main proc
mov eax,num1
cmp eax,num2
jl num2g ;如果num1比num2小，则对num2和num3做比较找最大值
cmp eax,num3 ;否则num1和num3做比较找最大值
jl num3g
jmp done
num2g:
mov eax,num2
cmp eax,num3
jl num3g
jmp done
num3g:
mov eax,num3
done:
call writeint
main endp
end main