diff --git a/Emulators/Apple80.mm.ragel b/Emulators/Apple80.mm.ragel
index bb9c627..92c6b8a 100644
--- a/Emulators/Apple80.mm.ragel
+++ b/Emulators/Apple80.mm.ragel
@@ -220,26 +220,26 @@
              
              | 0x80 .. 0x9f ${
                  /* uppercase inverse/normal */
-                 uint8_t flag = ~(_context.flags & Screen::FlagInverse);
+                 uint8_t flag = _context.flags ^ Screen::FlagInverse;
                  screen->putc(fc - 0x40, _context.cursor, flag);
              } $advance
              
              | 0xa0 .. 0xbf ${
                  /* special inverse/normal */
-                 uint8_t flag = ~(_context.flags & Screen::FlagInverse);
+                 uint8_t flag = _context.flags ^ Screen::FlagInverse;
                  screen->putc(fc - 0x80, _context.cursor, flag);
              } $advance
              
              | 0xc0 .. 0xdf ${
                  /* uppercase normal / mouse text. */
-                 uint8_t flag = ~(_context.flags & Screen::FlagInverse);
+                 uint8_t flag = _context.flags ^ Screen::FlagInverse;
                  if (flag) flag |= Screen::FlagMouseText;
                  screen->putc(fc - 0x80, _context.cursor, flag);
              } $advance
              
              | 0xe0 .. 0xff ${
                  /* special inverse/normal */
-                 uint8_t flag = ~(_context.flags & Screen::FlagInverse);
+                 uint8_t flag = _context.flags ^ Screen::FlagInverse;
                  screen->putc(fc - 0x80, _context.cursor, flag);
              } $advance
              
diff --git a/Emulators/GSOSConsole.mm.ragel b/Emulators/GSOSConsole.mm.ragel
index 3a75b04..a25ff19 100644
--- a/Emulators/GSOSConsole.mm.ragel
+++ b/Emulators/GSOSConsole.mm.ragel
@@ -420,26 +420,26 @@ static void advance(Screen *screen, gsos_context &ctx) {
 
              | 0x80 .. 0x9f ${
                  /* uppercase inverse/normal */
-                 uint8_t flags = ~(_context.flags & Screen::FlagInverse);
+                 uint8_t flags = _context.flags ^ Screen::FlagInverse;
                  screen->putc(fc - 0x40, cursor, flags);
              } $advance_if
 
              | 0xa0 .. 0xbf ${
                  /* special inverse/normal */
-                 uint8_t flags = ~(_context.flags & Screen::FlagInverse);
+                 uint8_t flags = _context.flags ^ Screen::FlagInverse;
                  screen->putc(fc - 0x80, cursor, flags);
              } $advance_if
 
              | 0xc0 .. 0xdf ${
                  /* uppercase normal / mouse text. */
-                 uint8_t flags = ~(_context.flags & Screen::FlagInverse);
+                 uint8_t flags = _context.flags ^ Screen::FlagInverse;
                  if (flags) flags |= Screen::FlagMouseText;
                  screen->putc(fc - 0x80, cursor, flags);
              } $advance_if
 
              | 0xe0 .. 0xff ${
                  /* special inverse/normal */
-                 uint8_t flags = ~(_context.flags & Screen::FlagInverse);
+                 uint8_t flags = _context.flags ^ Screen::FlagInverse;
                  screen->putc(fc - 0x80, cursor, flags);
              } $advance_if