From 467acda662de8b96e7d0df729c2e4761686b82a1 Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Mon, 27 Aug 2012 13:44:35 -0700
Subject: [PATCH] altos: Expose a signed version of the tick count

Useful when doing time comparisons.

Signed-off-by: Keith Packard <keithp@keithp.com>
---
 src/stm/ao_arch.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/stm/ao_arch.h b/src/stm/ao_arch.h
index d0dd3c79..87eda18b 100644
--- a/src/stm/ao_arch.h
+++ b/src/stm/ao_arch.h
@@ -31,6 +31,7 @@
 
 #ifndef AO_TICK_TYPE
 #define AO_TICK_TYPE	uint16_t
+#define AO_TICK_SIGNED	int16_t
 #endif
 
 /* Various definitions to make GCC look more like SDCC */
-- 
2.30.2