Minor updates to READMEs and comments

configs/16z/README.txt

@@ -167,6 +167,9 @@ The patch can also be removed with:
 
 See the section "Selecting Configurations" below.
 
+UPDATE:  2014-4-27:  The nsh example still does not run correctly.  This
+is believe to be caused by additional, undiagnosed compiler errors.
+
 Serial Console
 ==============
 
@@ -312,7 +315,9 @@ nsh
      1. Note that you must apply the ZNEO patch if you are using ZDS-II 5.0.1.
         See the README.txt file in the parent directory for more information.
 
-     2. This configuration does not run correctly.  There is currently a
+     2. This configuration does not run correctly.  This is believed to a yet
-        problem with the SRAM accesses.
+        another ZDS-II compiler problem.  The corresponding NSH configuration
+        of the z16f2800100zcog does work, however, so this could also be an
+        issue with the 16z.
 
 Check out any README.txt files in these <sub-directory>s.

configs/z16f2800100zcog/README.txt

@@ -106,6 +106,11 @@ The patch can also be removed with:
 
 See the section "Selecting Configurations" below.
 
+UPDATE:  2014-4-27:  The configs/16z/nsh example still does not run
+correctly.  This is believe to be caused by additional, undiagnosed
+compiler errors.  At present, these compiler bugs do not seem to effect
+the z16f2800100zcog.
+
 Serial Console
 ==============
 

sched/pthread_join.c

@@ -48,7 +48,7 @@
 #include "pthread_internal.h"
 
 /****************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
 /****************************************************************************
@@ -89,9 +89,9 @@
  * Return Value:
  *   0 if successful.  Otherwise, one of the following error codes:
  *
- *   EINVAL  The value specified by thread does not refer to ajoinable
+ *   EINVAL  The value specified by thread does not refer to joinable
  *           thread.
- *   ESRCH   No thread could be found corresponding to thatspecified by the
+ *   ESRCH   No thread could be found corresponding to that specified by the
  *           given thread ID.
  *   EDEADLK A deadlock was detected or the value of thread specifies the
  *           calling thread.
@@ -218,7 +218,7 @@ int pthread_join(pthread_t thread, FAR pthread_addr_t *pexit_value)
               sdbg("exit_value=0x%p\n", pjoin->exit_value);
             }
 
-          /* Post the thread's data semaphore so that the exitting thread
+          /* Post the thread's data semaphore so that the exiting thread
            * will know that we have received the data.
            */
 
@@ -253,4 +253,3 @@ int pthread_join(pthread_t thread, FAR pthread_addr_t *pexit_value)
   sdbg("Returning %d\n", ret);
   return ret;
 }
-

sched/task_exithook.c

@@ -53,7 +53,7 @@
 #include "sig_internal.h"
 
 /****************************************************************************
- * Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
 /****************************************************************************
@@ -80,7 +80,7 @@
  * Name: task_atexit
  *
  * Description:
- *   Call any registerd atexit function(s)
+ *   Call any registered atexit function(s)
  *
  ****************************************************************************/
 
@@ -90,7 +90,7 @@ static inline void task_atexit(FAR struct tcb_s *tcb)
   FAR struct task_group_s *group = tcb->group;
 
   /* Make sure that we have not already left the group.  Only the final
-   * exitting thread in the task group should trigger the atexit()
+   * exiting thread in the task group should trigger the atexit()
    * callbacks.
    */
 
@@ -100,7 +100,7 @@ static inline void task_atexit(FAR struct tcb_s *tcb)
       int index;
 
       /* Call each atexit function in reverse order of registration atexit()
-       * functions are registered from lower to higher arry indices; they
+       * functions are registered from lower to higher array indices; they
        * must be called in the reverse order of registration when the task
        * group exits, i.e., from higher to lower indices.
        */
@@ -140,7 +140,7 @@ static inline void task_atexit(FAR struct tcb_s *tcb)
  * Name: task_onexit
  *
  * Description:
- *   Call any registerd on_exit function(s)
+ *   Call any registered on_exit function(s)
  *
  ****************************************************************************/
 
@@ -150,7 +150,7 @@ static inline void task_onexit(FAR struct tcb_s *tcb, int status)
   FAR struct task_group_s *group = tcb->group;
 
   /* Make sure that we have not already left the group.  Only the final
-   * exitting thread in the task group should trigger the atexit()
+   * exiting thread in the task group should trigger the atexit()
    * callbacks.
    */
 
@@ -160,9 +160,9 @@ static inline void task_onexit(FAR struct tcb_s *tcb, int status)
       int index;
 
       /* Call each on_exit function in reverse order of registration.
-       * on_exit() functions are registered from lower to higher arry
+       * on_exit() functions are registered from lower to higher array
        * indices; they must be called in the reverse order of registration
-       * when the task grroup exits, i.e., from higher to lower indices.
+       * when the task group exits, i.e., from higher to lower indices.
        */
 
       for (index = CONFIG_SCHED_ONEXIT_MAX-1; index >= 0; index--)
@@ -266,7 +266,7 @@ static inline void task_groupexit(FAR struct task_group_s *group)
       DEBUGASSERT(child);
       if (child)
         {
-          /* Mark that all members of the child task group has exit'ed */
+          /* Mark that all members of the child task group has exited */
 
           child->ch_flags |= CHILD_FLAG_EXITED;
         }
@@ -336,7 +336,7 @@ static inline void task_sigchild(gid_t pgid, FAR struct tcb_s *ctcb, int status)
       task_groupexit(pgrp);
 
       /* Create the siginfo structure.  We don't actually know the cause.
-       * That is a bug. Let's just say that the child task just exit-ted
+       * That is a bug. Let's just say that the child task just exited
        * for now.
        */
 
@@ -387,7 +387,7 @@ static inline void task_sigchild(FAR struct tcb_s *ptcb,
 #endif /* CONFIG_SCHED_CHILD_STATUS */
 
       /* Create the siginfo structure.  We don't actually know the cause.
-       * That is a bug. Let's just say that the child task just exit-ted
+       * That is a bug. Let's just say that the child task just exited
        * for now.
        */
 
@@ -501,7 +501,7 @@ static inline void task_exitwakeup(FAR struct tcb_s *tcb, int status)
 #endif
         {
           /* Report the exit status.  We do not nullify tg_statloc here
-           * because we want to prent other tasks from registering for
+           * because we want to prevent other tasks from registering for
            * the return status.  There is only one task per task group,
            * there for, this logic should execute exactly once in the
            * lifetime of the task group.
@@ -577,7 +577,7 @@ static inline void task_flushstreams(FAR struct tcb_s *tcb)
  *
  * Description:
  *   This function implements some of the internal logic of exit() and
- *   task_delete().  This function performs some cleanup and other actions
+ *   task_delete().  This function performs some clean-up and other actions
  *   required when a task exits:
  *
  *   - All open streams are flushed and closed.