Cleanups and commentary changes.

lisp/menu-bar.el

@@ -2395,8 +2395,6 @@ If FRAME is nil or not given, use the selected frame."
      ((eq type 'x) (x-menu-bar-open frame))
      ((eq type 'w32) (w32-menu-bar-open frame))
      ((null tty-menu-open-use-tmm)
-      ;; FIXME: This should open the leftmost menu, and let the user
-      ;; move to others via C-f or right-arrow.
       (let* ((x tty-menu--initial-menu-x)
 	     (menu (menu-bar-menu-at-x-y x 0 frame)))
 	(popup-menu (or

src/term.c

@@ -3187,12 +3187,9 @@ read_menu_input (struct frame *sf, int *x, int *y, int min_y, int max_y,
     {
       *first_time = false;
       sf->mouse_moved = 1;
-      return 0;
     }
-
-  while (1)
+  else
     {
-#if 1
       extern Lisp_Object read_menu_command (void);
       Lisp_Object cmd;
       int usable_input = 1;
@@ -3247,17 +3244,6 @@ read_menu_input (struct frame *sf, int *x, int *y, int min_y, int max_y,
 	usable_input = 0;
       if (usable_input)
 	sf->mouse_moved = 1;
-#else
-      int volatile dx = 0;
-      int volatile dy = 0;
-      int volatile st = 0;
-
-      *x += dx;
-      *y += dy;
-      if (dx != 0 || dy != 0)
-	sf->mouse_moved = 1;
-      Sleep (300);
-#endif
       return st;
     }
   return 0;
@@ -3356,7 +3342,6 @@ tty_menu_activate (tty_menu *menu, int *pane, int *selidx,
   leave = 0;
   while (!leave)
     {
-      int mouse_button_count = 3; /* FIXME */
       int input_status;
       int min_y = state[0].y, max_y = min_y + state[0].menu->count - 1;
 
@@ -3457,8 +3442,6 @@ tty_menu_activate (tty_menu *menu, int *pane, int *selidx,
     }
 
   sf->mouse_moved = 0;
-  /* FIXME: Since we set the fram's garbaged flag, do we need this
-     call to screen_update?  */
   screen_update (sf, state[0].screen_behind);
   while (statecount--)
     free_saved_screen (state[statecount].screen_behind);

src/xdisp.c

@@ -20616,9 +20616,9 @@ deep_copy_glyph_row (struct glyph_row *to, struct glyph_row *from)
 }
 /* Display one menu item on a TTY, by overwriting the glyphs in the
-   desired glyph matrix with glyphs produced from the menu item text.
-   Called from term.c to display TTY drop-down menus one item at a
-   time.
+   frame F's desired glyph matrix with glyphs produced from the menu
+   item text.  Called from term.c to display TTY drop-down menus one
+   item at a time.
    ITEM_TEXT is the menu item text as a C string.
@@ -20626,11 +20626,11 @@ deep_copy_glyph_row (struct glyph_row *to, struct glyph_row *from)
    could specify one of 3 faces: a face for an enabled item, a face
    for a disabled item, or a face for a selected item.
-   X and Y are coordinates of the first glyph in the desired matrix to
-   be overwritten by the menu item.  Since this is a TTY, Y is the
-   zero-based number of the glyph row and X is the zero-based glyph
-   number in the row, starting from left, where to start displaying
-   the item.
+   X and Y are coordinates of the first glyph in the frame's desired
+   matrix to be overwritten by the menu item.  Since this is a TTY, Y
+   is the zero-based number of the glyph row and X is the zero-based
+   glyph number in the row, starting from left, where to start
+   displaying the item.
    SUBMENU non-zero means this menu item drops down a submenu, which
    should be indicated by displaying a proper visual cue after the