/***************************************************************************
 * file name   : asm_parser.h                                              *
 * author      :                                                  *
 * description : this header file declares the functions for those         *
 *               in the "asm_parser.c" library                             *
 *			     standard "string.h" C-library.                            * 
 *                                                                         *
 ***************************************************************************
 *
 */

#define ROWS 100
#define COLS 255

int read_asm_file 		(char* filename, char program [ROWS][COLS] ) ;
int parse_instruction 	(char* instr, char* instr_bin_str) ;
int parse_reg 			(char reg_num, char* instr_bin_str) ;
int parse_add 			(char* instr, char* instr_bin_str ) ;
int parse_mul 			(char* instr, char* instr_bin_str ) ;
/* add additional helper functions to support other instructions */
unsigned short int str_to_bin (char* instr_bin_str) ;
int write_obj_file 			  (char* filename, unsigned short int program_bin[ROWS] ) ;