Benchmark suite using simulators

1 files changed, 32 insertions, 0 deletions

diff --git a/benchmarks/interface-arm.c b/benchmarks/interface-arm.c
new file mode 100644
index 0000000..cd37979
--- /dev/null
+++ b/benchmarks/interface-arm.c
@@ -0,0 +1,32 @@
+#include "interface.h"
+#include <stdint.h>
+#include <stdio.h>
+
+// This targets an ARM Cortex M3 core using QEmu LM3S6965 emulation.
+#define STBASE 0xE000E000
+#define STCTRL (*(volatile uint32_t*)(0x010 + STBASE))
+#define STRELOAD (*(volatile uint32_t*)(0x014 + STBASE))
+#define STCURRENT (*(volatile uint32_t*)(0x018 + STBASE))
+
+
+void interface_init()
+{
+    STRELOAD = 0x00FFFFFF;
+    STCTRL = 5;
+}
+
+void start_timing()
+{
+     STCURRENT = 0;
+}
+
+uint16_t end_timing()
+{
+     return 0x00FFFFFF - STCURRENT - 4;
+}
+
+void print_value(const char *label, int32_t value)
+{
+    printf("%-20s %ld\n", label, value);
+}
+