From a8ab755f318d949b9a878802ec392dcc74168310 Mon Sep 17 00:00:00 2001
From: Markus Hitter <mah@jump-ing.de>
Date: Mon, 13 Jul 2015 13:53:35 +0200
Subject: [PATCH] simulator.h: provide a minimalistic SPI fake.

This mostly means: there is no SPI simulator, so don't build
support for it. This was found by running the new regression tests.
---
 simulator.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/simulator.h b/simulator.h
index 7cd03fb..fbb446c 100644
--- a/simulator.h
+++ b/simulator.h
@@ -177,6 +177,16 @@ uint16_t sim_tick_counter(void);
 uint64_t sim_runtime_ns(void); ///< Simulated run-time in nanoseconds
 void sim_time_warp(void); ///< skip ahead to next timer interrupt, when time_scale==0
 
+/** SPI subsystem.
+
+  So far there isn't really one. Disable SD and fake the remaining
+  neccessary bits.
+*/
+#undef SD_CARD_SELECT_PIN
+#undef SD
+#define loop_until_bit_is_set(SPSR, SPIF)
+uint8_t SPCR, SPDR, SPSR;
+
 #define DIO0_PIN "proof of life"
 
 #endif /* _SIMULATOR_H */