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Change projects to split the dsPIC and PIC24 taskYIELD implementations.
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Richard Barry
parent
e4c0740eaa
commit
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Source/portable/MPLAB/PIC24_dsPIC/portasm_PIC24.S
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Source/portable/MPLAB/PIC24_dsPIC/portasm_PIC24.S
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/*
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FreeRTOS.org V5.0.2 - Copyright (C) 2003-2008 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
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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 2 of the License, or
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(at your option) any later version.
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FreeRTOS.org 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 FreeRTOS.org; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes FreeRTOS.org, without being obliged to provide
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the source code for any proprietary components. See the licensing section
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of http://www.FreeRTOS.org for full details of how and when the exception
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can be applied.
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***************************************************************************
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***************************************************************************
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* *
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* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
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* and even write all or part of your application on your behalf. *
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* See http://www.OpenRTOS.com for details of the services we provide to *
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* expedite your project. *
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* *
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***************************************************************************
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***************************************************************************
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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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.global _vPortYield
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.extern _vTaskSwitchContext
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.extern uxCriticalNesting
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_vPortYield:
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PUSH SR /* Save the SR used by the task.... */
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PUSH W0 /* ....then disable interrupts. */
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MOV #32, W0
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MOV W0, SR
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PUSH W1 /* Save registers to the stack. */
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PUSH.D W2
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PUSH.D W4
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PUSH.D W6
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PUSH.D W8
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PUSH.D W10
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PUSH.D W12
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PUSH W14
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PUSH RCOUNT
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PUSH TBLPAG
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PUSH CORCON
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PUSH PSVPAG
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MOV _uxCriticalNesting, W0 /* Save the critical nesting counter for the task. */
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PUSH W0
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MOV _pxCurrentTCB, W0 /* Save the new top of stack into the TCB. */
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MOV W15, [W0]
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call _vTaskSwitchContext
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MOV _pxCurrentTCB, W0 /* Restore the stack pointer for the task. */
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MOV [W0], W15
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POP W0 /* Restore the critical nesting counter for the task. */
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MOV W0, _uxCriticalNesting
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POP PSVPAG
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POP CORCON
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POP TBLPAG
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POP RCOUNT /* Restore the registers from the stack. */
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POP W14
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POP.D W12
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POP.D W10
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POP.D W8
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POP.D W6
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POP.D W4
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POP.D W2
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POP.D W0
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POP SR
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return
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.end
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@ -67,20 +67,17 @@ _vPortYield:
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PUSH W14
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PUSH W14
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PUSH RCOUNT
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PUSH RCOUNT
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PUSH TBLPAG
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PUSH TBLPAG
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PUSH ACCAL
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#ifdef MPLAB_DSPIC_PORT
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PUSH ACCAH
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PUSH ACCAL
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PUSH ACCAU
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PUSH ACCAH
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PUSH ACCBL
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PUSH ACCAU
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PUSH ACCBH
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PUSH ACCBL
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PUSH ACCBU
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PUSH ACCBH
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PUSH DCOUNT
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PUSH ACCBU
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PUSH DOSTARTL
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PUSH DCOUNT
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PUSH DOSTARTH
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PUSH DOSTARTL
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PUSH DOENDL
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PUSH DOSTARTH
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PUSH DOENDH
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PUSH DOENDL
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PUSH DOENDH
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#endif
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PUSH CORCON
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PUSH CORCON
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@ -98,21 +95,17 @@ _vPortYield:
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MOV W0, _uxCriticalNesting
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MOV W0, _uxCriticalNesting
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POP PSVPAG
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POP PSVPAG
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POP CORCON
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POP CORCON
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POP DOENDH
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#ifdef MPLAB_DSPIC_PORT
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POP DOENDL
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POP DOENDH
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POP DOSTARTH
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POP DOENDL
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POP DOSTARTL
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POP DOSTARTH
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POP DCOUNT
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POP DOSTARTL
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POP ACCBU
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POP DCOUNT
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POP ACCBH
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POP ACCBU
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POP ACCBL
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POP ACCBH
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POP ACCAU
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POP ACCBL
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POP ACCAH
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POP ACCAU
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POP ACCAL
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POP ACCAH
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POP ACCAL
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#endif
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POP TBLPAG
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POP TBLPAG
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POP RCOUNT /* Restore the registers from the stack. */
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POP RCOUNT /* Restore the registers from the stack. */
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POP W14
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POP W14
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