#include <stdio.h>

void main()
{
  FILE *fp;
  int i, type;
  unsigned int address, instr;
  unsigned int masked_addr;

  // open trace file for reading

  fp = fopen("gcc_trace.txt", "r");
 

  // read first 100 lines of trace file; 
  // address holds virtual address in unsigned int format;
  // N.B. - your program must read all 1,000,000 lines but
  //        you might want to test it on the first 100 lines
  //        or so before running it on the entire trace file!

  for (i=0; i<100; ++i) {

    // read 1 line of trace file

    fscanf(fp, "%d %x %x", &type, &address, &instr);

    // example of bit-wise operation in C;
    // mask off all but the 2nd least significant hex digit,
    // shift right by 4 bits, and print address in hex and
    // masked shifted address in decimal

    masked_addr = (address & 0x000000f0) >> 4;
    printf("%8x        %2d\n", address, masked_addr);
  }

}