71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
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/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file cosmic/STM8/chcore.c
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* @brief STM8 (Cosmic) architecture port code.
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*
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* @addtogroup STM8_COSMIC_CORE
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* @{
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*/
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#include "ch.h"
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@tiny ReadyList rlist;
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/**
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* @brief Performs a context switch between two threads.
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*
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* @param otp the thread to be switched out
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*/
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void _port_switch(Thread *otp) {
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_asm(" xref _rlist \n"
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" ldw y,sp \n"
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" ldw (5,x),y \n"
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" ldw x,_rlist+5 \n"
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" ldw x,(5,x) \n"
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" ldw sp,x \n", otp);
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}
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/**
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* @brief Thread start code.
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*/
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void _port_thread_start(void) {
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_asm(" rim \n"
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" popw x \n");
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}
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/**
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* @brief Halts the system.
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* @details This function is invoked by the operating system when an
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* unrecoverable error is detected (as example because a programming
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* error in the application code that triggers an assertion while in
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* debug mode).
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*/
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void port_halt(void) {
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port_disable();
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while (TRUE) {
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}
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}
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/** @} */
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