Return original comments formatting

1 files changed, 19 insertions, 9 deletions

diff --git a/1_hello_world/main.c b/1_hello_world/main.c
index ee4ee64..1a30562 100644
--- a/1_hello_world/main.c
+++ b/1_hello_world/main.c
@@ -28,12 +28,12 @@
 #define TEXT_POS_X              (0x08)
 #define TEXT_POS_Y              (0x04)
 
-// ==============================================================
-//  TILE IDs
-// ==============================================================
-//  The indices of each tile above. Once the tiles have been
-//  written to VRAM, the VDP refers to each tile by its index.
-// ==============================================================
+//==============================================================
+// TILE IDs
+//==============================================================
+// The indices of each tile above. Once the tiles have been
+// written to VRAM, the VDP refers to each tile by its index.
+//==============================================================
 #define TILE_ID_SPACE (0x0)
 #define TILE_ID_H     (0x1)
 #define TILE_ID_E     (0x2)
@@ -165,6 +165,16 @@ static uint32_t characters[TILE_COUNT * SIZE_TILE_L] = {
     0x00000000L,
 };
 
+//==============================================================
+// VRAM WRITE MACROS
+//==============================================================
+// Some utility macros to help generate addresses and commands for
+// writing data to video memory, since they're tricky (and
+// error prone) to calculate manually.
+// The resulting command and address is written to the VDP's
+// control port, ready to accept data in the data port.
+//==============================================================
+
 // Set the VRAM (video RAM) address to write to next
 static inline void SetVRAMWrite(uint16_t addr)
 {
@@ -220,9 +230,9 @@ static void VDP_LoadRegisters(void)
 
 int main(void)
 {
-    // ==============================================================
-    //  Initialise the Mega Drive
-    // ==============================================================
+    //==============================================================
+    // Initialise the Mega Drive
+    //==============================================================
 
     // Write the TMSS signature (if a model 1+ Mega Drive)
     VDP_WriteTMSS();