Tokens and parsing

Below is the code a program I am writing. It is a simple assembly simulator. I succesfully read memory from a file and store it in an array and set all my registers to 0. I have a file as follows where the first number tells me how many commands are in the file.
8
load   R1,R8
add   R1,16
loadind   R2,R1
add   R1,8
loadind   R3,R1
add   R3,R2
sub   R1,4
storeind   R3,R1

I have stored the above in the array code[]. Now I want to read each array elemnt and split its contents into tokens - eg load, R1 and R8 would all be tokens. How do I separet them so I can then process what they mean? At present they each line is stored in an array, but i don't know how to sepeare them. Also this is a standard file input, so should be possible for any input file. How do I just read the first line of a file in this case the 8) so i know how many commands to expect?

My whole program is shown below
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef char *STRNG;

STRNG code[20];

int registers[8];

int memory[20];



STRNG get_line(FILE * inf)

{

STRNG s;




int tok = getc(inf);
int count = 0;

s =(char *) malloc(80);


while (tok != '\n' && tok != EOF)
{

//s[count++] = tok;
s[count++] = (char) tok;

tok = getc(inf);

}

s[count] = '\0';

return s;

}

void setRegisters(){
     int i;
     for (i=0; i<8; i++)
          registers[i] = 0;
}
void getMemory(FILE *inf) {
     STRNG line;
    int i = 0;

     while (strlen(line = get_line(inf)))
{
   printf ("%s\n", line);
   memory[i++] = atoi(line);
}
}

void showMemory(){
     int i;
     for (i=0;i<20;i++){
          printf("%d", memory[i]);}
}





int main (int argc, char *argv[])
{
   FILE *data, *assembly;

   if ( argc < 3 )
   {
        printf("Invalid arguments");
         exit(EXIT_FAILURE);
   }

   if ( (assembly = fopen(argv[1], "r")) == NULL )
   {
       printf("Cannot open assembly file");
       exit(EXIT_FAILURE);
   }

   if ( (data= fopen(argv[2], "r")) == NULL )
   {
       printf("Cannot open data file");
       exit(EXIT_FAILURE);
   }

showMemory("/n");
getMemory(data);
showMemory();
setRegisters();

int lines=8;

int count = 0;




for(count =0;count<lines;count++) code[count]= get_line(assembly);

for(count = 0;count<lines;count++) printf("%s\n",code[count]);





return 1;


}

regards