From 996694c4bd44c2bafb0c5fb8b93a152c08b1bbec Mon Sep 17 00:00:00 2001
From: Mike Naberezny <mike@maintainable.com>
Date: Fri, 21 Nov 2008 18:21:25 +0000
Subject: [PATCH] Added help and argument checking for assemble.

---
 src/py65/monitor.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/py65/monitor.py b/src/py65/monitor.py
index cf5f8a6..82cb21a 100644
--- a/src/py65/monitor.py
+++ b/src/py65/monitor.py
@@ -110,7 +110,11 @@ class Monitor(cmd.Cmd):
         return self.help_EOF()
 
     def do_assemble(self, args):
-        start, statement = args.split(None, 1)
+        split = args.split(None, 1)
+        if len(split) != 2:
+            return self.help_assemble()
+        
+        start, statement = split
         start = self._address_parser.number(start)
 
         bytes = self._assembler.assemble(statement)
@@ -121,6 +125,10 @@ class Monitor(cmd.Cmd):
             self._mpu.memory[start:end] = bytes
             self.do_disassemble('%04x:%04x' % (start, end))
 
+    def help_assemble(self):
+        self._output("assemble <address> <statement>")
+        self._output("Assemble a statement at the address.")
+
     def do_disassemble(self, args):
         start, end = self._address_parser.range(args)
         if start == end: