as of 2013-10-172013-10-17

1 files changed, 24 insertions, 3 deletions

diff --git a/mpx.h b/mpx.h
index 7d64022..d9af678 100644
--- a/mpx.h
+++ b/mpx.h
@@ -43,7 +43,7 @@ typedef struct dirstruct dir;  /* Use dir as the data typer name.     */
 #define BLOCKED       2

 #define NOT_SUSPENDED 0

 #define SUSPENDED     1

-

+#define STACK_SIZE  400

 

 struct pcbstruct {

 	struct pcbstruct * chain;

@@ -55,8 +55,9 @@ struct pcbstruct {
 	short state;

 	short suspend;

 	unsigned stack_ptr;

-	unsigned stack[400];

+	unsigned stack[STACK_SIZE];

 	unsigned loadaddr;

+	unsigned parm_add; // added during mod because sys_call said so

 	int mem_size;

 };

 typedef struct pcbstruct pcb;

@@ -89,10 +90,28 @@ int  directory(dir *, int);           /* Support function to load the */
 pcb * search_pcb(pcb *, char[]);

 pcb * get_pcb(pcb *);

 int free_pcb(pcb *, pcb *);

-int build_pcb(pcb *, char[], int, int, int, int);

+int build_pcb(pcb *, char[] /*name*/, int /*type*/, int /*state*/,

+	int /*suspend*/, int /*priority*/, unsigned /*_cs*/, unsigned /*_ip*/,

+	unsigned /*_ds*/, unsigned /*psw*/);

 int insert_pcb(pcb**, pcb *, int);

 int remove_pcb(pcb**, pcb *);

 

+/**

+ * TestN.C

+ */

+void test1(void);

+void test2(void);

+void test3(void);

+void test4(void);

+void test5(void);

+

+/**

+ * Sys_sppt.c

+ */

+void sys_inti(void);

+void sys_exit(void);

+void interrupt dispatch(void);

+void interrupt sys_call(void);

 

 /*

  *   Global variable EXTERN directives.

@@ -109,3 +128,5 @@ extern int directory(dir *direct, int dir_size);
 extern pcb * pcb_list;

 extern pcb * ready_queue;

 extern pcb * io_init_queue;

+extern pcb * cop; /* The currently operating process. */

+extern unsigned sys_stack[];
\ No newline at end of file