/* Compile and link using the commnads below
    arm-elf-gcc -c -mcpu=arm7tdmi -O2 -g -Wall -o fact.o fact.c
    arm-elf-ld -o flash.elf  cstart.o tact.o
   Next use arm-elf-insight to debug.
*/

unsigned int fact(unsigned int n)  

      {  

      if (n == 1)  

      return 1;  

      else   

      return n*fact(n-1);  

      }  

void   main()  

      {  

      fact(5);  
      
      }