Scaffolding for input processing.

diff --git a/ez.el b/ez.el
index 7a91e57..f96005a 100644 (file)
--- a/ez.el
+++ b/ez.el
@@ -840,12 +840,19 @@
     (ez-print (ez-get-obj-name obj)))
   'run)
 
+(defvar ez--next-read-args nil)
 (defun ez-op-read (operands operand-types)
   (let ((baddr1 (car operands))
         (baddr2 (cadr operands)))
-    )
+    (setq ez--next-read-args (list baddr1 baddr2)))
   'wait-for-input)
 
+(defun ez-op-read2 (input-string)
+  (ez-tokenize-string input-string
+                      (car ez--next-read-args)
+                      (cadr ez--next-read-args))
+  'run)
+
 ;; Execution loop
 
 (defun ez-load-and-run (filename)
@@ -888,8 +895,12 @@
 
 (defun ez-enter ()
   (interactive)
-  (with-current-buffer "*ez*"
-    (buffer-substring ez-input-marker (point-max))))
+  (if (not (eq ez-machine-state 'wait-for-input))
+      (error "Z-machine not ready for input."))
+  (let ((input-string (with-current-buffer "*ez*"
+                        (buffer-substring ez-input-marker (point-max)))))
+    (ez-op-read2 input-string)
+    (ez-run)))
 
 ;; Mode