diff options
Diffstat (limited to 'main.c')
| -rw-r--r-- | main.c | 61 |
1 files changed, 57 insertions, 4 deletions
@@ -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;
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