diff options
Diffstat (limited to 'mpx.h')
| -rw-r--r-- | mpx.h | 27 |
1 files changed, 24 insertions, 3 deletions
@@ -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 |