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+# ProDOS BASIC.SYSTEM commands
+
+This project is about re-learning everything I've forgotten or never learned:
+* 65C02
+* Code relocation
+* Makefiles 
+* Mac OS X
+* Automated testing of application
+* BASIC.SYSTEM command integration
+* Requesting memory from BASIC.SYSTEM
+
+The general target of these commands is 256 bytes.  
+The loader/relocator stub is less important, but also trying to target 256 bytes.
+This keeps the commands to 1 block and 1 page of used memory.
+
+# Commands
+
+## ONLINE
+
+Displays all volumes online.  
+
+    ]ONLINE
+    S3,D2 /RAM
+    S6,D1 ERR=$27
+    ...
+
+Accepts slot/drive parameters.
+
+    ]ONLINE,S3,D2
+    S3,D2 /RAM