fix readme

README.org

@@ -97,41 +97,46 @@ memory is managed via frame based arenas. function scopes defines a memory frame
 heap allocations using the internal malloc opcode push pointers within this frame. when a frame exits, the pointer is reset like stack based gc. 
 
 #+BEGIN_SRC sh
+global str terminal_namespace = "/dev/term/0"
+global str prompt = "Enter a string:"
+global str new_line = "\n"
+
 function main ()
-	int mode is $11
-	str term is $10
+	int mode $11;
+	str term $10;
 
-	malloc_immediate "/dev/term/0" -> term 
+	load_immediate terminal_namespace -> term 
 	load_immediate 0 -> mode
-	syscall OPEN term mode -> term # Terminal term = open("/dev/term/0", 0);
+	syscall OPEN term mode -> term // Terminal term = open("/dev/term/0", 0);
 
-	malloc_immediate "Enter a string:" -> $7 
+	load_immediate prompt -> $7 
 	string_length $7 -> $8
-	syscall WRITE term $7 $8 # print prompt
+	syscall WRITE term $7 $8 // print prompt
 
-	str user_string is $9
+	str user_string $9
 	load_immediate 32 -> $8
 	malloc $8 -> user_string
-	syscall READ term user_string $8 # read in max 32 byte string
+	syscall READ term user_string $8 // read in max 32 byte string
 
-	call pln user_string
+	call pln user_string -> void
 	exit 0
 
-function pln (str message is $0) 
-	str ts is $1 
-	int mode is $5
-	int msg_length is $2 
-	str nl is $3 
-	int nl_length is $4 
+function pln (str message $0) 
+	str ts $1 
+	int mode $5
+	int msg_length $2 
+	str nl $3 
+	int nl_length $4
 
-	malloc_immediate "/dev/term/0" -> ts
+	load_immediate terminal_namespace -> ts
 	load_immediate 0 -> mode
-	syscall OPEN ts mode -> ts # get terminal device
+	syscall OPEN ts mode -> ts
 	strlen message -> msg_length
 	syscall WRITE ts message msg_length	
-	malloc_immediate "\n" -> nl
+	load_immediate new_line -> nl
 	strlen nl -> nl_length
 	syscall WRITE ts nl nl_length
+	return
 
 #+END_SRC