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-rw-r--r--src/sim/full_system.hh12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/sim/full_system.hh b/src/sim/full_system.hh
index e67fc11a9..18cf34d09 100644
--- a/src/sim/full_system.hh
+++ b/src/sim/full_system.hh
@@ -31,6 +31,18 @@
#ifndef __SIM_FULL_SYSTEM_HH__
#define __SIM_FULL_SYSTEM_HH__
+/**
+ * The FullSystem variable can be used to determine the current mode
+ * of simulation.
+ */
extern bool FullSystem;
+/**
+ * In addition to the boolean flag we make use of an unsigned int
+ * since the CPU instruction decoder makes use of the variable in
+ * switch statements. A value of 0 signifies syscall emulation, and
+ * any other value full system.
+ */
+extern unsigned int FullSystemInt;
+
#endif // __SIM_FULL_SYSTEM_HH__