From b180fcc7e37a4be155757f9c40fd70a55ff8141c Mon Sep 17 00:00:00 2001
From: Pedro de Oliveira <falsovsky@gmail.com>
Date: Thu, 14 Aug 2014 19:24:10 +0100
Subject: [PATCH] Doc

---
 zxbrainfuck/main.asm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/zxbrainfuck/main.asm b/zxbrainfuck/main.asm
index bf0fbda..510cff6 100644
--- a/zxbrainfuck/main.asm
+++ b/zxbrainfuck/main.asm
@@ -4,7 +4,7 @@ org $7530
 ; System variables
 tv_flag     equ $5c3c   ; TV flags variable
 last_k      equ $5c08   ; Last pressed key
-clear_screen equ $0daf  ; Rom routine to clear the screen
+clr_screen  equ $0daf   ; Rom routine to clear the screen
 
 ; Brainfuck opcodes
 OP_INC_DP   equ ">"     ; $3e - 62
@@ -58,7 +58,7 @@ start
     ld (tv_flag), a         ; Enables rst $10 output to the TV
     push bc                 ; Save BC on the stack
 
-    call clear_screen
+    call clr_screen         ; Clear the screen with a ROM routine
 
     call clear_memory       ; Set all memory cells to 0
 
@@ -89,6 +89,8 @@ end_main
 
 ; -------------------------------------
 
+; Sets all BF memory cells to 0
+; Starts clearing at the end
 clear_memory
     ld bc, memory_size
 clear_memory_loop