X-Git-Url: http://gitweb.hugovil.com/?a=blobdiff_plain;ds=sidebyside;f=src%2Fgtk%2Fregwin.c;h=d3fcb8dd042d3ec5c852a3360ecc76f5356a894b;hb=f7e3f1d8d0438f52e4f988a12318075cc1b43568;hp=235868571c0e57d6acfd4fef9561dacd9e257481;hpb=5419d1bd9d2faae98c78da740634b972e8f5aac1;p=emu8051.git

diff --git a/src/gtk/regwin.c b/src/gtk/regwin.c
index 2358685..d3fcb8d 100644
--- a/src/gtk/regwin.c
+++ b/src/gtk/regwin.c
@@ -88,10 +88,16 @@ regwin_cell_edited(GtkCellRendererText *cell, gchar *path_string,
 	/* Read current (old) value. */
 	gtk_tree_model_get(model, &iter, COL_VAL, &str, -1);
 
+	/* No need to check error, has already been validated. */
 	old = asciihex2int(str);
 	log_info("  old value: $%04X", old);
 
 	new = asciihex2int(new_str);
+	if (asciihex2int_get_error()) {
+		log_warn("  new value: invalid");
+		return;
+	}
+
 	log_info("  new value: $%04X", new);
 
 	/* Store new value in emulator register (if in range). */