71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
/*
|
|
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
|
|
|
|
This file is part of ChibiOS/RT.
|
|
|
|
ChibiOS/RT 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; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ChibiOS/RT 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* @file cosmic/STM8/chcore.c
|
|
* @brief STM8 (Cosmic) architecture port code.
|
|
*
|
|
* @addtogroup STM8_COSMIC_CORE
|
|
* @{
|
|
*/
|
|
|
|
#include "ch.h"
|
|
|
|
@tiny ReadyList rlist;
|
|
|
|
/**
|
|
* @brief Performs a context switch between two threads.
|
|
*
|
|
* @param otp the thread to be switched out
|
|
*/
|
|
void _port_switch(Thread *otp) {
|
|
|
|
_asm(" xref _rlist \n"
|
|
" ldw y,sp \n"
|
|
" ldw (5,x),y \n"
|
|
" ldw x,_rlist+5 \n"
|
|
" ldw x,(5,x) \n"
|
|
" ldw sp,x \n", otp);
|
|
}
|
|
|
|
/**
|
|
* @brief Thread start code.
|
|
*/
|
|
void _port_thread_start(void) {
|
|
|
|
_asm(" rim \n"
|
|
" popw x \n");
|
|
}
|
|
|
|
/**
|
|
* @brief Halts the system.
|
|
* @details This function is invoked by the operating system when an
|
|
* unrecoverable error is detected (as example because a programming
|
|
* error in the application code that triggers an assertion while in
|
|
* debug mode).
|
|
*/
|
|
void port_halt(void) {
|
|
|
|
port_disable();
|
|
while (TRUE) {
|
|
}
|
|
}
|
|
|
|
/** @} */
|