Diff: main.cpp

Revision:

0:fb2a7afed608

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jan 09 18:30:45 2014 +0000
@@ -0,0 +1,99 @@
+#include "mbed.h"
+
+/*
+    Benchmark test script
+*/
+
+///////////////////////////////////////////////////
+#define lOOPMACRO(label,symbol) t.reset();\
+    t.start();\
+    for(i=0;i<REPEAT;i++){\
+        (label##_z) = (label##_y) symbol (label##_x);\
+    }\
+    (label##_result) = t.read_us();\
+    t.stop();\
+    pc.printf( #label ": %d us ",(label##_result)-overhead);\
+    pc.printf("(%f us)\n",(float)((label##_result)-overhead) / (float)REPEAT);
+
+///////////////////////////////////////////////////
+
+const uint32_t REPEAT = 1000000;
+
+Serial pc(USBTX,USBRX);
+Timer t;
+
+volatile int8_t i8_x = 12;
+volatile int8_t i8_y = 34;
+volatile int8_t i8_z;
+
+volatile int16_t i16_x = 12;
+volatile int16_t i16_y = 34;
+volatile int16_t i16_z;
+
+volatile int32_t i32_x = 12345;
+volatile int32_t i32_y = 67890;
+volatile int32_t i32_z;
+
+volatile int64_t i64_x = 123456;
+volatile int64_t i64_y = 789011;
+volatile int64_t i64_z;
+
+volatile float f_x = 1.234567;
+volatile float f_y = 2.345678;
+volatile float f_z;
+
+volatile double d_x = 1.23456789;
+volatile double d_y = 2.34567890;
+volatile double d_z;
+
+int main() {
+    uint32_t i,overhead,i8_result,i16_result,i32_result,i64_result,f_result,d_result;
+    pc.printf("\n\nBenchMark TEST START\n\n  // All calcurates repeat %d times\n\n",REPEAT);
+    
+    // overhead
+    t.reset();
+    t.start();
+    for(i=0;i<REPEAT;i++){
+    }
+    overhead = t.read_us();
+    t.stop();
+    pc.printf("Overhead: %d us\n",overhead);
+    
+    pc.printf("\nADD\n\n");
+    
+    lOOPMACRO(i8,+);
+    lOOPMACRO(i16,+);
+    lOOPMACRO(i32,+);
+    lOOPMACRO(i64,+);
+    lOOPMACRO(f,+);
+    lOOPMACRO(d,+);
+    
+    pc.printf("\nSUB\n\n");
+    
+    lOOPMACRO(i8,-);
+    lOOPMACRO(i16,-);
+    lOOPMACRO(i32,-);
+    lOOPMACRO(i64,-);
+    lOOPMACRO(f,-);
+    lOOPMACRO(d,-);
+    
+    pc.printf("\nMULTI\n\n");
+    
+    lOOPMACRO(i8,*);
+    lOOPMACRO(i16,*);
+    lOOPMACRO(i32,*);
+    lOOPMACRO(i64,*);
+    lOOPMACRO(f,*);
+    lOOPMACRO(d,*);
+    
+    pc.printf("\nDIV\n\n");
+    
+    lOOPMACRO(i8,/);
+    lOOPMACRO(i16,/);
+    lOOPMACRO(i32,/);
+    lOOPMACRO(i64,/);
+    lOOPMACRO(f,/);
+    lOOPMACRO(d,/);
+    
+    pc.printf("\nDONE\n");
+}