| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151 |
- ;/*
- ; * FreeRTOS Kernel V10.4.6
- ; * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
- ; *
- ; * SPDX-License-Identifier: MIT
- ; *
- ; * Permission is hereby granted, free of charge, to any person obtaining a copy of
- ; * this software and associated documentation files (the "Software"), to deal in
- ; * the Software without restriction, including without limitation the rights to
- ; * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
- ; * the Software, and to permit persons to whom the Software is furnished to do so,
- ; * subject to the following conditions:
- ; *
- ; * The above copyright notice and this permission notice shall be included in all
- ; * copies or substantial portions of the Software.
- ; *
- ; * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- ; * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
- ; * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
- ; * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
- ; * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- ; * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- ; *
- ; * https://www.FreeRTOS.org
- ; * https://github.com/FreeRTOS
- ; *
- ; */
- .import _pxCurrentTCB
- .import _vTaskSwitchContext
- .import _xTaskIncrementTick
- .export _vPortStartFirstTask
- .export _ulPortGetGBR
- .export _vPortYieldHandler
- .export _vPortPreemptiveTick
- .export _vPortCooperativeTick
- .export _vPortSaveFlopRegisters
- .export _vPortRestoreFlopRegisters
- .section P
- .INCLUDE "ISR_Support.inc"
- _vPortStartFirstTask:
- portRESTORE_CONTEXT
- ;-----------------------------------------------------------
- _vPortYieldHandler:
- portSAVE_CONTEXT
- mov.l #_vTaskSwitchContext, r0
- jsr @r0
- nop
- portRESTORE_CONTEXT
- ;-----------------------------------------------------------
- _vPortPreemptiveTick
- portSAVE_CONTEXT
- mov.l #_xTaskIncrementTick, r0
- jsr @r0
- nop
- mov.l #_vTaskSwitchContext, r0
- jsr @r0
- nop
- portRESTORE_CONTEXT
- ;-----------------------------------------------------------
- _vPortCooperativeTick
- portSAVE_CONTEXT
- mov.l #_xTaskIncrementTick, r0
- jsr @r0
- nop
- portRESTORE_CONTEXT
- ;-----------------------------------------------------------
- _ulPortGetGBR:
- stc.l gbr, r0
- rts
- nop
- ;-----------------------------------------------------------
- _vPortSaveFlopRegisters:
- fmov.s fr0, @-r4
- fmov.s fr1, @-r4
- fmov.s fr2, @-r4
- fmov.s fr3, @-r4
- fmov.s fr4, @-r4
- fmov.s fr5, @-r4
- fmov.s fr6, @-r4
- fmov.s fr7, @-r4
- fmov.s fr8, @-r4
- fmov.s fr9, @-r4
- fmov.s fr10, @-r4
- fmov.s fr11, @-r4
- fmov.s fr12, @-r4
- fmov.s fr13, @-r4
- fmov.s fr14, @-r4
- fmov.s fr15, @-r4
- sts.l fpul, @-r4
- sts.l fpscr, @-r4
- rts
- nop
- ;-----------------------------------------------------------
- _vPortRestoreFlopRegisters:
- add.l #-72, r4
- lds.l @r4+, fpscr
- lds.l @r4+, fpul
- fmov.s @r4+, fr15
- fmov.s @r4+, fr14
- fmov.s @r4+, fr13
- fmov.s @r4+, fr12
- fmov.s @r4+, fr11
- fmov.s @r4+, fr10
- fmov.s @r4+, fr9
- fmov.s @r4+, fr8
- fmov.s @r4+, fr7
- fmov.s @r4+, fr6
- fmov.s @r4+, fr5
- fmov.s @r4+, fr4
- fmov.s @r4+, fr3
- fmov.s @r4+, fr2
- fmov.s @r4+, fr1
- fmov.s @r4+, fr0
- rts
- nop
- .end
|
