mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-05-02 03:12:05 -04:00
989bc332b2
* Add XMOS XCore ports Some minor modifications are also made to the kernel to support the XCore compiler's automatic stack size calculation. * Update kernel to support SMP The XMOS XCore ports are also updated to support SMP. * Fix compiler warnings in xcore ports The port set and clear interrupt mask from ISR macros were removed from the ports so that the default macros found in FreeRTOS.h are used instead. The default macros do not result in warnings when they are used. * Remove inline function from timers.h Inline function converted to macro. This should now build when optimizations are off and inlining is disabled. * Fix compiler warnings in xcore ports and tasks.c * fixed documentation for ulTaskNotifyTake() and ulTaskNotifyTakeIndexed() * spelling fixes for tasks.c Co-authored-by: Michael Bruno <mikeb@xmos.com>
107 lines
2.7 KiB
ArmAsm
107 lines
2.7 KiB
ArmAsm
/*
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* FreeRTOS Kernel V10.4.3
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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* 1 tab == 4 spaces!
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*/
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#if defined( __dsPIC30F__ ) || defined( __dsPIC33F__ )
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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 ACCAL
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PUSH ACCAH
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PUSH ACCAU
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PUSH ACCBL
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PUSH ACCBH
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PUSH ACCBU
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PUSH DCOUNT
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PUSH DOSTARTL
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PUSH DOSTARTH
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PUSH DOENDL
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PUSH DOENDH
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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 DOENDH
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POP DOENDL
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POP DOSTARTH
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POP DOSTARTL
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POP DCOUNT
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POP ACCBU
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POP ACCBH
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POP ACCBL
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POP ACCAU
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POP ACCAH
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POP ACCAL
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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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#endif /* defined( __dsPIC30F__ ) || defined( __dsPIC33F__ ) */
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