#include<stdio.h>
#include<string.h>
#include<stdlib.h>
void main(){
FILE *file_pointer1, *file_pointer2, *file_pointer3, *file_pointer4;
char opcode[20], operand [20], label[20], code[20], mnemonic[20];
int loc_counter start, length;
file_pointer1 = fopen("input.dat", "r");
file_pointer2 = fopen("optab.dat", "r");
file_pointer3 = fopen("symtab.dat", "w");
file_pointer4 = fopen("out.dat", "w");
fscanf(file_pointer1, "%s\t%s\t%s", label, opcode, operand);
if(strcmp(opcode, "START") == 0) {
start= atoi(operand),
loc_counter = start;
fprintf(file_pointer4, "\t%s\t%s\t%s\n", label, opcode, operand);
escanf(file pointer1, "%s\t%s\t%s" label opcode operand): } else {
loc_counter = 0;
}
while(strcmp(opcode, "END") != 0) {
fprintf(file_pointer4, "%d\t", loc_counter);
if(strcmp(label, "**") !=0) {
fprintfile_pointer3, "sm", label, loc_counter);
}
fscanf(file_pointer2, "%s", code);
while strcmptcode, END TOTT if(strempfopcode, coole)-0){
loc counter loc_counter + 3;
break;
}
fscanf(file_pointer2, "%s", code);
}
if(strcmp(opcode, "WORD")==0) {
loc_counter = loc_counter + 3;
} 
else if(strcmp(opcode, "RESW")==0) {
loc_counter = loc_counter + (3* (atoi(operand)));
}
else iffstrompopcode, "NESS")){
loc_counter = loc_counter + (atoi(operand));
} 
else if(strcmp(opcode, "BYTE")==0) {
++lac_counter:
}
fprintf(file_pointer4, "%s\t%s\t%s\t\n", label, opcode, operand);
fscanf(file_pointer1, "%s\t%s\t%s", label, opcode, operand);
}
fprintf(file_pointer4, "%d \t%s\t%s\t%s\n", loc_counter, label, opcode, operand);
length = loc_counter - start;
printf("The length of the code: Mall", length);
fclose(file_pointer1);
fclose(file_pointer2);
fclose(file_painter3):
fclose(file_pointer4);
}