void
 tstrsequence(uchar c) {
-       if (c & 0x80) {
-               switch (c) {
-               case 0x90:   /* DCS -- Device Control String */
-                       c = 'P';
-                       break;
-               case 0x9f:   /* APC -- Application Program Command */
-                       c = '_';
-                       break;
-               case 0x9e:   /* PM -- Privacy Message */
-                       c = '^';
-                       break;
-               case 0x9d:   /* OSC -- Operating System Command */
-                       c = ']';
-                       break;
-               }
+       switch (c) {
+       case 0x90:   /* DCS -- Device Control String */
+               c = 'P';
+               break;
+       case 0x9f:   /* APC -- Application Program Command */
+               c = '_';
+               break;
+       case 0x9e:   /* PM -- Privacy Message */
+               c = '^';
+               break;
+       case 0x9d:   /* OSC -- Operating System Command */
+               c = ']';
+               break;
        }
        strreset();
        strescseq.type = c;