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105 lines
3.4 KiB
C
105 lines
3.4 KiB
C
/*
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FreeRTOS.org V5.3.1 - Copyright (C) 2003-2009 Richard Barry.
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This file is part of the FreeRTOS.org distribution.
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FreeRTOS.org is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License (version 2) as published
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by the 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.org without being obliged to provide
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the source code for any proprietary components. Alternative commercial
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license and support terms are also available upon request. See the
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licensing section of http://www.FreeRTOS.org for full details.
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FreeRTOS.org 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.org; 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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* Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
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* *
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* This is a concise, step by step, 'hands on' guide that describes both *
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* general multitasking concepts and FreeRTOS specifics. It presents and *
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* explains numerous examples that are written using the FreeRTOS API. *
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* Full source code for all the examples is provided in an accompanying *
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* .zip file. *
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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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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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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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