initial commit

1 files changed, 26 insertions, 0 deletions

diff --git a/src/keybuf.h b/src/keybuf.h
new file mode 100644
index 0000000..1430ef4
--- /dev/null
+++ b/src/keybuf.h
@@ -0,0 +1,26 @@
+
+/* Dead simple keyboard buffer mechanism
+
+	Call keybuf_init() at startup
+
+	During busy loops, periodically call keybuf_poll_kbd(),
+	which will buffer keystrokes as they're pressed.
+
+	When ready to read the keyboard, call keybuf_cgetc()
+	Return value is 0 for no key pressed and no keys in buffer,
+	or else the ASCII code of the next key.
+
+	Also, can call keybuf_is_empty() to find out whether the
+	buffer's got anything in it.
+
+	It would be possible to have the OS periodically call
+	keybuf_poll_kbd() for us, using one of the countdown timers.
+	For now, not going to do this, as it adds complexity and
+	fujichat only has 2 or 3 places that count as busy
+	loops.
+ */
+
+void __fastcall__ keybuf_init(void);
+void __fastcall__ keybuf_poll_kbd(void);
+char __fastcall__ keybuf_is_empty(void);
+char __fastcall__ keybuf_cgetc(void);