nga-python: fix dictionary lookups & update the embedded system image

FossilOrigin-Name: 1a0ec29139576a86bda601bb6b891f7dbbc3f6643944cd4d9656ca9993a6b3b7

Configuration.mk

@@ -27,6 +27,9 @@ LIBDL ?=
 
 # -------------------------------------------------------------
 
+# If using the Python toolchain, remove the -DBIT64 from the
+# OPTIONS
+
 OPTIONS ?=
 #OPTIONS += -DBIT64
 
@@ -97,8 +100,7 @@ DEVICES += interface/descriptions.retro
 # -------------------------------------------------------------
 
 GLOSSARY ?= ./bin/retro tools/glossary.retro
-ASSEMBLE ?= ./tools/retro-muri.py
-#EXTEND   ?= ./tools/retro-extend.py
+ASSEMBLE ?= ./bin/retro-muri
 EXTEND   ?= ./bin/retro-extend
 EXPORT   ?= ./bin/retro-embedimage
 RETRO    ?= ./bin/retro

vm/nga-python/retro.py

@@ -149,7 +149,7 @@ class Retro:
         Dictionary = dict()
         header = self.memory[2]
         while header != 0:
-            named = self.extract_string(header + 4)
+            named = self.extract_string(header + 9)
             if not named in Dictionary:
                 Dictionary[named] = header
             header = self.memory[header]
@@ -162,7 +162,7 @@ class Retro:
         header = self.memory[2]
         Done = False
         while header != 0 and not Done:
-            if named == self.extract_string(header + 4):
+            if named == self.extract_string(header + 9):
                 self.Dictionary[named] = header
                 Done = True
             else: