Adds fopen(), fwrite(), fclose()

console.asm

@@ -1,3 +1,4 @@
+extern	NR_write
 extern	strlen
 
 section .rodata
@@ -14,7 +15,7 @@ print:
 
 	call	strlen
 	mov	rdx, rax
-	mov	rax, 1
+	mov	rax, NR_write
 	mov	rsi, rdi
 	mov	rdi, 1
 	syscall
@@ -30,7 +31,7 @@ puts:
 	mov	r10, rdi
 	call	print
 	mov	rdi, r10
-	mov	rax, 1
+	mov	rax, NR_write
 	mov	rdi, 1
 	mov	rsi, NL
 	mov	rdx, 1