Implemented number output

lib/io/io.q

@@ -0,0 +1,22 @@
+import mem
+import sys
+
+printNum(x) {
+	length := 20
+	buffer := mem.alloc(length)
+	end := buffer + length
+	tmp := end
+	digit := 0
+
+	loop {
+		x, digit = x / 10
+		tmp -= 1
+		tmp[0] = '0' + digit
+
+		if x == 0 {
+			sys.write(1, tmp, end - tmp)
+			mem.free(buffer, length)
+			return
+		}
+	}
+}