/* file: sos.h
 *
 * 	SOS is the Simple Operating System for STM hardware
 *
 ***************************************************/

#ifndef H_SOS
#define H_SOS

#define NAMESIZE 32 /* maximum size of process name */

/****************************************************
 * Global variables for SOS
 ****************************************************/

extern int 
     maxinst,  		/* Maximum number of instructions */
     procindex;         /* Index of process */

extern char procname[NAMESIZE];  /* name of process */


/****************************************************
 * parse_flags(argc, argv)
 * 	Extract the flags from the command line: base, debug, and maxinst.
 * 	The index of the STM filename in the command is returned as the value.
 ****************************************************/

extern int parse_flags(int argc, char * argv[]);

/****************************************************
 * Load the STML code into memory 
 * It is assumed that STML files are correctly formatted;
 * 	therefore, this does no error checking
 * NOTE: You are allowed to change this function for project 1;
 * 	however, there is no need to do so.
 ****************************************************/

extern void load_stm(char filename[]);

/* Set global flags, load the STM file, initialize the STM process */

extern void initialize(int argc, char* argv[]);

/* Execute a trap */

extern void exec_trap();
 
/* sos version */

extern void SOSversion();

#endif
// END of sos.h