Question1. (lesson 2)

In the following code we determine a number if its even or odd.Explain what logic is used for that?   

section .text

   global_start           ;must be declared for using gcc

      

_start:                    ;tell linker entry point

   mov   ax,  8h          ;getting 8 in the ax

   and   ax,1             ;and ax with 1

   jz    evnn

   mov   eax,4            ;system call number (sys_write)

   mov   ebx,1            ;file descriptor (stdout)

   mov   ecx,odd_msg       ;message to write

   mov   edx,len2          ;lengthof message

   int  0x80              ;call kernel

   jmp   outprog

evnn:  

  

   mov   ah, 09h

   mov   eax,4            ;system call number (sys_write)

   mov   ebx,1            ;file descriptor (stdout)

   mov   ecx,even_msg      ;message to write

   mov   edx,len1          ;lengthof message

   int  0x80              ;call kernel

outprog:

   mov  eax,1             ;system call number (sys_exit)

   int  0x80              ;call kernel

section   .data

even_msg db 'Even Number!' ;message showing even number

len1 equ $ - even_msg

   

odd_msg db 'Odd Number!'    ;message showing oddnumber

len2 equ $ - odd_msg

                    

Question 2. (lesson 1 and lesson 3)

                   Write a program that does thefollowing(modification from assignment 3)

           1. Asks the user to enter two numbers (each is a byte) A and B

           2. Multiply the numbers and stores the result in variable C.

                 3. so that if theproduct  exceeds 10, the program would print “result isgreater than 10”.

                     Otherwise (if result < 10), it prints the result as usual.