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/* |
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FreeRTOS V5.4.1 - Copyright (C) 2009 Real Time Engineers Ltd. |
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This file is part of the FreeRTOS distribution. |
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FreeRTOS is free software; you can redistribute it and/or modify it under |
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the terms of the GNU General Public License (version 2) as published by the |
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Free Software Foundation and modified by the FreeRTOS exception. |
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**NOTE** The exception to the GPL is included to allow you to distribute a |
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combined work that includes FreeRTOS without being obliged to provide the |
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source code for proprietary components outside of the FreeRTOS kernel. |
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Alternative commercial license and support terms are also available upon |
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request. See the licensing section of http://www.FreeRTOS.org for full |
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license details. |
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT |
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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more details. |
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You should have received a copy of the GNU General Public License along |
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with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59 |
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Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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*************************************************************************** |
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* * |
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* Looking for a quick start? Then check out the FreeRTOS eBook! * |
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* See http://www.FreeRTOS.org/Documentation for details * |
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* * |
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*************************************************************************** |
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1 tab == 4 spaces! |
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Please ensure to read the configuration and relevant port sections of the |
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online documentation. |
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http://www.FreeRTOS.org - Documentation, latest information, license and |
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contact details. |
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http://www.SafeRTOS.com - A version that is certified for use in safety |
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critical systems. |
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http://www.OpenRTOS.com - Commercial support, development, porting, |
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licensing and training services. |
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*/ |
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#ifndef PORT_ASM_H |
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#define PORT_ASM_H |
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|
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portSAVE_CONTEXT macro |
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/* Save the remaining registers. */ |
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push r4 |
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push r5 |
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push r6 |
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push r7 |
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push r8 |
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push r9 |
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push r10 |
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push r11 |
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push r12 |
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push r13 |
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push r14 |
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push r15 |
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mov.w &_usCriticalNesting, r14 |
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push r14 |
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mov.w &_pxCurrentTCB, r12 |
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mov.w r1, @r12 |
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endm |
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/*-----------------------------------------------------------*/ |
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|
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portRESTORE_CONTEXT macro |
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mov.w &_pxCurrentTCB, r12 |
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mov.w @r12, r1 |
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pop r15 |
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mov.w r15, &_usCriticalNesting |
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pop r15 |
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pop r14 |
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pop r13 |
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pop r12 |
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pop r11 |
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pop r10 |
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pop r9 |
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pop r8 |
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pop r7 |
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pop r6 |
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pop r5 |
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pop r4 |
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/* The last thing on the stack will be the status register. |
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Ensure the power down bits are clear ready for the next |
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time this power down register is popped from the stack. */ |
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bic.w #0xf0,0(SP) |
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reti |
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endm |
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/*-----------------------------------------------------------*/ |
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#endif |
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