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/* file: main.c
*
* This file contains the function main
* for the MPX Operating System - this is where
* the program's execution begins
*/
#include <stdio.h>
#include "mpx.h"
pcb * pcb_list;
pcb * ready_queue;
pcb * io_init_queue;
pcb * cop;
pcb pcb0;
pcb pcb1;
pcb pcb2;
pcb pcb3;
pcb pcb4;
pcb pcb5;
pcb pcb6;
pcb pcb7;
pcb pcb8;
pcb pcb9;
pcb pcb10;
pcb pcb11;
unsigned sys_stack[STACK_SIZE];
int main(void) {
pcb * pcb_addr;
printf("Booting MPX... \n");
/* Put initialization code here */
// create the chain
pcb0.chain = &pcb1;
pcb1.chain = &pcb2;
pcb2.chain = &pcb3;
pcb3.chain = &pcb4;
pcb4.chain = &pcb5;
pcb5.chain = &pcb6;
pcb6.chain = &pcb7;
pcb7.chain = &pcb8;
pcb8.chain = &pcb9;
pcb9.chain = &pcb10;
pcb10.chain = &pcb11;
pcb11.chain = NULL;
build_pcb(&pcb0, " ", FREE, -1, -1, 0, NULL, NULL, NULL, NULL);
build_pcb(&pcb1, " ", FREE, -1, -1, 0, NULL, NULL, NULL, NULL);
build_pcb(&pcb2, " ", FREE, -1, -1, 0, NULL, NULL, NULL, NULL);
build_pcb(&pcb3, " ", FREE, -1, -1, 0, NULL, NULL, NULL, NULL);
build_pcb(&pcb4, " ", FREE, -1, -1, 0, NULL, NULL, NULL, NULL);
build_pcb(&pcb5, " ", FREE, -1, -1, 0, NULL, NULL, NULL, NULL);
build_pcb(&pcb6, " ", FREE, -1, -1, 0, NULL, NULL, NULL, NULL);
build_pcb(&pcb7, " ", FREE, -1, -1, 0, NULL, NULL, NULL, NULL);
build_pcb(&pcb8, " ", FREE, -1, -1, 0, NULL, NULL, NULL, NULL);
build_pcb(&pcb9, " ", FREE, -1, -1, 0, NULL, NULL, NULL, NULL);
build_pcb(&pcb10, " ", FREE, -1, -1, 0, NULL, NULL, NULL, NULL);
build_pcb(&pcb11, " ", FREE, -1, -1, 0, NULL, NULL, NULL, NULL);
pcb_list = &pcb0;
// initialize the currently running process
cop = NULL;
sys_init();
comhan(); /* Execute the command handler */
sys_exit();
return 0;
}
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