as of 2013-12-042013-12-04

1 files changed, 57 insertions, 4 deletions

diff --git a/main.c b/main.c
index dac79aa..41269bf 100644
--- a/main.c
+++ b/main.c
@@ -6,10 +6,11 @@
  */

 

 #include <stdio.h>

+#include <dos.h>

 #include "mpx.h"

 

 pcb * pcb_list;

-pcb * ready_queue;

+pcb * ready_queue_locked;

 pcb * io_init_queue;

 pcb * cop;

 

@@ -26,12 +27,30 @@ pcb pcb9;
 pcb pcb10;

 pcb pcb11;

 

+dcb com;

+dcb prt;

+dcb con;

+int com_eflag;

+int con_eflag;

+int prt_eflag;

+

 unsigned sys_stack[STACK_SIZE];

 

 int main(void) {

 	pcb * pcb_addr;

+	int rc;

+	dcb * d = &con;//test

+	char *args[] = {"load", "idle"};

+

 	printf("Booting MPX... \n");

-	/* Put initialization code here */

+

+	sys_init();

+

+	if (DEBUG_PRINTS) printf("did init \n");

+

+	d->event_flag = &con_eflag;

+

+	if (DEBUG_PRINTS) printf("making chain \n");

 

 	// create the chain

 	pcb0.chain  = &pcb1;

@@ -47,6 +66,8 @@ int main(void) {
 	pcb10.chain = &pcb11;

 	pcb11.chain = NULL;

 

+	if (DEBUG_PRINTS) printf("building pcbs \n");

+

 	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);

@@ -65,8 +86,40 @@ int main(void) {
 	// initialize the currently running process

 	cop = NULL;

 

-	sys_init();

-	comhan();    /* Execute the command handler */

+	// set up command handler as a PCB

+	pcb_addr = get_pcb(pcb_list);

+	rc = build_pcb(pcb_addr, "ComHan", SYS_PROCESS, READY, NOT_SUSPENDED, 127, _CS,

+	  (unsigned)comhan, _DS, 0x200);

+

+	disable();

+	insert_pcb(&ready_queue_locked, pcb_addr, 0);

+	enable();

+

+	if (DEBUG_PRINTS) printf("comhan in queue \n");

+

+

+	// set up idle process

+	cmd_load(args);

+

+	if (DEBUG_PRINTS) printf("loaded \n");

+

+	// update priority for idle process

+	// we can't do this when initially calling because of

+	// APP_PROCESS type priority validation

+	pcb_addr = search_pcb(&pcb_list, "idle");

+	pcb_addr->priority = -128;

+	pcb_addr->suspend = NOT_SUSPENDED;

+	pcb_addr->type = SYS_PROCESS;

+

+	if (DEBUG_PRINTS) printf("pri set \n");

+

+	// ALREADY IN QUEUE THANKS TO CMD_LOAD

+	//insert_pcb(&ready_queue, pcb_addr, 0);

+

+	if (DEBUG_PRINTS) printf("idle in queue \n");

+

+	dispatch();

+

 	sys_exit();

 

 	return 0;