plato: add an esc -ctrl Z sequence to get out of it at any time

diff --git a/Applications/plato/fuzix/keyboard.c b/Applications/plato/fuzix/keyboard.c
index 16d47e4..d339937 100644 (file)
--- a/Applications/plato/fuzix/keyboard.c
+++ b/Applications/plato/fuzix/keyboard.c
@@ -23,6 +23,7 @@ static uint8_t shift_lock = false;
 static uint8_t is_escape = false;
 extern uint8_t xoff_enabled;
 extern padBool TTY;
+extern uint8_t io_eof;
 
 /**
  * keyboard_main - Handle the keyboard presses
@@ -42,6 +43,10 @@ void keyboard_main(void)
                }
                return;
        }
+       if (is_escape == true && ch == 0x1A) {  // ESC CTRL-Z
+               io_eof = 1;
+               return;
+       }
        if (is_escape == true && ch == 0x1B)    // ESC
        {
                screen_beep();