From ac89960fbe89141aea31da9a329bfa39d67eede7 Mon Sep 17 00:00:00 2001
From: "leleraffa97@hotmail.it" <leleraffa97@hotmail.it>
Date: Fri, 23 Jun 2017 12:18:24 +0200
Subject: Order and update of the struct Separation of boot and login sections
 Improuved program manager system

---
 sw/z80/kernel/include/progman.h | 68 ++++++++++++++++++++++++++++-------------
 1 file changed, 46 insertions(+), 22 deletions(-)

(limited to 'sw/z80/kernel/include/progman.h')

diff --git a/sw/z80/kernel/include/progman.h b/sw/z80/kernel/include/progman.h
index 5d01f1c..b59e14a 100644
--- a/sw/z80/kernel/include/progman.h
+++ b/sw/z80/kernel/include/progman.h
@@ -13,13 +13,41 @@
 #define PROG_0_INFO     // TODO
 #define PROG_1_INFO     // TODO find a space in the ram
 
-struct program_info {
+struct prog_status {
 
-    volatile int enabled:1;
-    volatile int running:1;
-    volatile int exiting:1;
-    volatile int heap_addr:13;
-    volatile void (*quit_cb)(void);   // 16
+    // The program is in execution
+
+    uint8_t running:1;
+
+    // The program is executing its quit callback
+
+    uint8_t exiting:1;
+
+    uint8_t unused:6;  // TODO, find a usage for these bits
+}:
+
+struct prog_data {
+
+    struct prog_status status;
+
+    /*
+    *   The following addresses are needed to map 
+    *   map the usable memory for dynamic allocations
+    */
+
+    // Virtual address of the heap
+
+    uint8_t heap_addr:12;
+
+    // Virtual address of the stack limit
+
+    uint8_t stack_limit:12;
+
+    /*
+    *   Function called when the program exits normally
+    */
+
+    void (*quit_cb)(void);   // 16
 };
 
 /*
@@ -32,20 +60,23 @@ void progman_init();
 *   Check if it can start a new program
 *   If it succedes, the program id is returned,
 *   otherwise it is returned an error number
+*
+*   ! Disable virtual addresses when this function is called
 */
 
 #define PROG_REQ_FULL -1
-#define PROG_REQ_ERR -2     // Maybe we don't need this, but just in case
 
-int8_t prog_req(struct program_info *info);
+int8_t prog_req();
 
 /*
 *   It allocates a program in the RAM
 *   To obtain the right id call prog_req() first
 *   Basic informations must be allocated and referenced by a program_base struct
+*
+*   ! Disable virtual addresses when this function is called
 */
 
-struct program_base {
+struct prog_space {
 
     void * inst_set;    // pointer to the instructions set
     size_t inst_size;   // size of the instructions set
@@ -53,33 +84,26 @@ struct program_base {
     size_t data_size;   // size of the bss/data space
 };
 
-void prog_alloc(int8_t id, struct program_info *info, const struct program_base *base);
+void prog_alloc(int8_t id, struct prog_data *data, const struct prog_space *space);
 
 /*
 *   It jumps the program counter to the given one
 */
 
-void prog_exec(int8_t id, struct program_info *info);
+void prog_exec(int8_t id, struct prog_data *data);
 
 /*
 *   It sets a quit callback
 */
 
-void prog_0_qcb(void (*callback)(void));
-void prog_1_qcb(void (*callback)(void));
+void prog_0_set_qcb(void (*callback)(void));
+void prog_1_set_qcb(void (*callback)(void));
 
 /*
 *   It quits a program, if a callback is set, it will be called
 */
 
-void prog_0_quit();
-void prog_1_quit();
-
-/*
-*   It forces a program to quit
-*/
-
-void prog_0_fquit();
-void prog_1_fquit();
+void prog_0_quit(uint8_t force);
+void prog_1_quit(uint8_t force);
 
 #endif
\ No newline at end of file
-- 
cgit v1.2.1