Update README

diff --git a/README b/README
index 83929a2a6dbb84a81fc6ce72649e7e2f0f189abd..1244f8492d5db6566fc79cd8a02fe5bb8b0bd61f 100644 (file)
--- a/README
+++ b/README
@@ -1,4 +1,21 @@
-AltOS - 8051 operating system for Altus-Metrum projects
+       AltOS - 8051 operating system for Altus-Metrum projects
+
+Copyright and License
+
+       Copyright © 2009 Keith Packard <keithp@keithp.com>
+
+       This program is free software; you can redistribute it and/or modify
+       it under the terms of the GNU General Public License as published by
+       the Free Software Foundation; version 2 of the License.
+
+       This program is distributed in the hope that it will be useful, but
+       WITHOUT ANY WARRANTY; without even the implied warranty of
+       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+       General Public License for more details.
+
+       You should have received a copy of the GNU General Public License along
+       with this program; if not, write to the Free Software Foundation, Inc.,
+       59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 
 Parameters:
 
@@ -9,15 +26,15 @@ Parameters:
 
 API:
 
-       int ao_sleep(void *wchan)
+       void ao_sleep(void *wchan)
 
                Puts current task to sleep. Will wake up when wchan is signalled
        
-       int ao_wakeup(void *wchan)
+       void ao_wakeup(void *wchan)
 
                Wakeup all tasks sleeping on wchan
 
-       void ao_add_task(struct ao_task *task)
+       void ao_add_task(struct ao_task *task, void (*start)(void))
 
                Adds a task to the queue of available tasks
 
@@ -25,8 +42,13 @@ API:
 
                Invokes the scheduler, starting the operating system
 
-       void ao_switch(void)
+       void ao_yield(void)
 
                Switches to another task which is ready to run. Allows
                tasks which want to run for a while to give up the CPU
                without needing to sleep
+
+       void ao_panic(uint8_t reason)
+
+               Any fatal error should call this function, which can
+               display the error code in some cryptic fashion.