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;/*
; * FreeRTOS Kernel V10.3.0
; * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
; *
; * 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.
; *
; * http://www.FreeRTOS.org
; * http://aws.amazon.com/freertos
; *
; * 1 tab == 4 spaces!
; */
.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
|
