From 57d94c60198f0a38f6fa96caa499d851f1fb2d2a Mon Sep 17 00:00:00 2001
From: Jesse Weaver <pianohacker@gmail.com>
Date: Thu, 4 Jan 2018 00:04:47 -0700
Subject: [PATCH] Add equ explanation

---
 Assembler-directives.md | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/Assembler-directives.md b/Assembler-directives.md
index 07e4028..29d681a 100644
--- a/Assembler-directives.md
+++ b/Assembler-directives.md
@@ -1,4 +1,24 @@
-TODO:
+# equ
+
+The `equ` directive allows you to give a name to certain special values. This code:
+
+    INT_LEGS equ 0x0001
+    LEGS_SET_DIRECTION equ 0x0001
+    NORTH equ 0x0000
+
+    MOV A, LEGS_SET_DIRECTION
+    MOV B, NORTH
+    HWI INT_LEGS
+
+translates to:
+    
+    MOV A, 0x0001
+    MOV B, 0x0000
+    HWI 0x0001
+
+but is much easier to understand.
+
+# TODO:
 labels  
 equ  
 dup