diff --git a/scmvm.scm b/scmvm.scm
index 074306e..ad1441c 100755
--- a/scmvm.scm
+++ b/scmvm.scm
@@ -3,16 +3,11 @@ exec guile -L . -e main -s "$0" "$@"
 !#
 (use-modules (rnrs bytevectors)
              (ice-9 binary-ports)
+             (ice-9 format)
              (srfi srfi-26)
+             (srfi srfi-43)
              (scmvm vm))
 
-(define the-vm #f)
-(define the-program #f)
-
-(define (load-binary port)
-  (set! the-vm (make-vm))
-  (set! the-program port))
-
 (eval-when (expand load eval)
   (use-modules (oop goops)
                (g-golf))
@@ -25,7 +20,25 @@ exec guile -L . -e main -s "$0" "$@"
             '("Application"
               "ApplicationWindow"
               "CallbackAction"
-              "FileDialog")))
+              "FileDialog"
+              "Box"
+              "TextView")))
+
+(define %vm (make-vm #:memory-size 100))
+(define %program #f)
+(define %buffer #f)
+
+(define (load-binary port)
+  (set! %program port))
+
+(define (update-memory-buffer!)
+  (when (and %buffer %vm)
+    (define ram (vm-memory %vm))
+    (set-text %buffer "" 0)
+    (vector-for-each
+     (lambda (_ byte)
+       (insert-at-cursor %buffer (format #f "~2'0x " byte) 3))
+     ram)))
 
 (define (open-file win cb)
   (define dialog (make <gtk-file-dialog>))
@@ -57,6 +70,19 @@ exec guile -L . -e main -s "$0" "$@"
      "open-file"
      (lambda ()
        (open-file win load-binary))))
+
+  (define box (make <gtk-box>
+                #:orientation 'vertical))
+  (define textview (make <gtk-text-view>
+                     #:vexpand #t
+                     #:editable #f
+                     #:cursor-visible #f
+                     #:wrap-mode 'word))
+  (set! %buffer (get-buffer textview))
+  (update-memory-buffer!)
+  (append box textview)
+  (set-child win box)
+  
   (present win))
 
 (define* (main #:optional args)