From 6bac80fa01566645787e416a365e281075ec8282 Mon Sep 17 00:00:00 2001
From: Bad Diode <bd@badd10de.dev>
Date: Thu, 15 Apr 2021 17:27:01 +0200
Subject: Add comment for clarification

---
 src/main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/main.c b/src/main.c
index cbfa2a7..7c33166 100644
--- a/src/main.c
+++ b/src/main.c
@@ -239,6 +239,8 @@ static inline void
 put_pixel_m4(int x, int y, u8 col_index) {
     int buffer_index = (y * SCREEN_WIDTH + x) / 2;
     u16 *destination = &SCREEN_BUFFER[buffer_index];
+    // Odd pixels will go to the top 8 bits of the destination. Even pixels to
+    // the lower 8 bits.
     int odd = x & 0x1;
     if(odd) {
         *destination= (*destination & 0xFF) | (col_index << 8);
-- 
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