testing arduino arithmetic speed

gistfile1.txt

#define ARITHMETIC_TEST_REPETITIONS 100000

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Starting test...");
  randomSeed(analogRead(0));
}

unsigned long i;
long microsBefore;
long microsTotal;
byte tempB;
unsigned int tempI;
unsigned long tempL;
int a = 4;

void loop() {
  tempB = random(2, 5);
 
  Serial.println("----------------- BYTE");
  // put your main code here, to run repeatedly:
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempB = tempB + tempB;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("add 2x:      ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempB = tempB + tempB + tempB;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("add 3x:      ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempB = tempB + tempB + tempB + tempB;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("add 4x:      ");
  Serial.println(microsTotal);
  
  
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempB = tempB * 2;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("multiply x2: ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempB = tempB * 3;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("multiply x3: ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempB = tempB * 4;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("multiply x4: ");
  Serial.println(microsTotal);
  
  
  
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempB = tempB * tempB;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("square:      ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempB = tempB * tempB * tempB;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("cube:        ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempB = tempB * tempB * tempB * tempB;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("hypercube:   ");
  Serial.println(microsTotal);
 
 
 
 
 
 
 
 
 
  tempI = random(2, 5);
 
  Serial.println("----------------- UINT");
  // put your main code here, to run repeatedly:
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempI = tempI + tempI;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("add 2x:      ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempI = tempI + tempI + tempI;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("add 3x:      ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempI = tempI + tempI + tempI + tempI;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("add 4x:      ");
  Serial.println(microsTotal);
  
  
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempI = tempI * 2;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("multiply x2: ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempI = tempI * 3;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("multiply x3: ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempI = tempI * 4;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("multiply x4: ");
  Serial.println(microsTotal);
  
  
  
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempI = tempI * tempI;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("square:      ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempI = tempI * tempI * tempI;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("cube:        ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempI = tempI * tempI * tempI * tempI;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("hypercube:   ");
  Serial.println(microsTotal);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  tempL = random(2, 5);
 
  Serial.println("----------------- ULONG");
  // put your main code here, to run repeatedly:
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempL = tempL + tempL;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("add 2x:      ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempL = tempL + tempL + tempL;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("add 3x:      ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempL = tempL + tempL + tempL + tempL;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("add 4x:      ");
  Serial.println(microsTotal);
  
  
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempL = tempL * 2;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("multiply x2: ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempL = tempL * 3;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("multiply x3: ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempL = tempL * 4;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("multiply x4: ");
  Serial.println(microsTotal);
  
  
  
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempL = tempL * tempL;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("square:      ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempL = tempL * tempL * tempL;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("cube:        ");
  Serial.println(microsTotal);
  microsBefore = micros();
  for (i = 0; i < ARITHMETIC_TEST_REPETITIONS; i++) {
    tempL = tempL * tempL * tempL * tempL;
  }
  microsTotal = micros() - microsBefore;
  Serial.print("hypercube:   ");
  Serial.println(microsTotal);
 
 
 
 
 
  delay(5000);
}