System Calls cleanup, multiple Processes and context switch

[cortex-from-scratch] / syscall.c

diff --git a/syscall.c b/syscall.c
index ba0dc9a..2250009 100644 (file)
--- a/syscall.c
+++ b/syscall.c
@@ -10,13 +10,14 @@
  * | SYSTEM CALL       | #     |
  * |--------------------|-------|
  * | THEOS_INIT                | 1     |
- * | THEOS_DESTROY     | 2     |
- * | THEOS_RESCHED     | 3     |
- * | THEOS_GETC                | 4     |
- * | THEOS_CPUTS       | 5     |
- * | THEOS_UPTIME      | 6     |
- * | THEOS_OMNIGOD     | 7     |
- * | THEOS_TIME                | 8     |
+ * | THEOS_CREATE      | 2     |
+ * | THEOS_DESTROY     | 3     |
+ * | THEOS_SWITCH      | 4     |
+ * | THEOS_GETC                | 5     |
+ * | THEOS_CPUTS       | 6     |
+ * | THEOS_UPTIME      | 7     |
+ * | THEOS_OMNIGOD     | 8     |
+ * | THEOS_TIME                | 9     |
  * | THEOS_MAGIC       | 99    |
  * |----------------------------|
  *
@@ -70,10 +71,9 @@ int sys_switch(process_t * currp, process_t * newp) {
        uint32_t chk_stackptr;
        asm volatile("mrs %0, psp" : "=r" (chk_stackptr));
        //asm volatile("isb");
-       printf("OLD: %x\n", currp->stackptr);
-       printf("NEW: %x\n", newp->stackptr);
-       printf("CHK: %x\n", chk_stackptr);
-       //for(;;);
+       //printf("OLD: %x\n", currp->stackptr);
+       //printf("NEW: %x\n", newp->stackptr);
+       //printf("CHK: %x\n", chk_stackptr);
 
        return 0;