You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
152 lines
3.4 KiB
Plaintext
152 lines
3.4 KiB
Plaintext
;/*
|
|
; * FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
|
; * 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
|
|
|