fork download
copy 
  1. #include <iostream>
  2. #include <bitset>
  3.  
  4. using namespace std;
  5.  
  6. typedef struct CACHE {
  7.     unsigned int lineSize;
  8.     unsigned int associativity;
  9.     unsigned int numLines;
  10. } CACHE;
  11.  
  12. unsigned int log2(unsigned int x) {
  13.     unsigned int resultado = 0;
  14.     while (x >>= 1) resultado++;
  15.     return resultado;
  16. }
  17.  
  18. int main() {
  19. 	unsigned long long int address = 0x123456789ABCDEFLL;
  20. 	CACHE cacheconfig;
  21. 	cacheconfig.lineSize = 20;
  22. 	cacheconfig.numLines = 200;
  23. 	cacheconfig.associativity = 4;
  24.  
  25.     string binario = bitset<256>(address).to_string();
  26.     int InicioDado = 256-log2(cacheconfig.lineSize);
  27.     string dado = binario.substr(InicioDado, log2(cacheconfig.lineSize));
  28.     int InicioIndex = InicioDado-log2(cacheconfig.numLines/cacheconfig.associativity);
  29.     string index = binario.substr(InicioIndex ,log2(cacheconfig.numLines/cacheconfig.associativity));
  30.     int InicioTag = 256-cacheconfig.lineSize;
  31.     string tag = binario.substr(InicioTag, 256-InicioTag-log2(cacheconfig.lineSize));
  32.     long unsigned int Tag = bitset<256>(tag).to_ulong();
  33.     long unsigned int Index = bitset<256>(index).to_ulong();
  34.     long unsigned int Dado = bitset<256>(dado).to_ulong();
  35.  
  36.     printf("%lu,%lu,%lu", Tag, Index, Dado);
  37. 	return 0;
  38. }
Success #stdin #stdout 0s 3472KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
48350,30,15
https://ideone.com/sIVTB5
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!