even.asm

section .data
	even db "even",10	;even number
	odd db "odd",10		;odd number
section .bss
	num resb 1
section .text
	global _start

_start:

	mov rax, num	;read
	mov rdi, 0	;stdin
	mov rsi, num	;where to store
	mov rdx, 1	;count
	syscall


	movzx eax, byte [num]	;num in eax. div requires dividend in eax
	xor edx, edx	;clear edx
	mov ebx, 2	;mov 2 in ebx
	div ebx		;divide
	cmp edx, 0x00	;remaider goes in edx
	je evenl	;jump if equals


	mov rax, 1	;write
	mov rdi, 1	;stdout
	mov rsi, odd	;message
	mov rdx, 4	;count
	syscall

	mov rax, 60	;exit
	mov rdi, 0	;code 0
	syscall


evenl:
	mov rax, 1	;write
	mov rdi , 1	;stdout
	mov rsi , even	;message
	mov rdx, 5	;count
	syscall

	mov rax, 60	;exit
	mov rdi, 0	;code 0
	syscall