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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Source/] [portable/] [Renesas/] [SH2A_FPU/] [portasm.src] - Blame information for rev 609

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Line No. Rev Author Line
1 572 jeremybenn
;/*
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;    FreeRTOS V6.1.1 - Copyright (C) 2011 Real Time Engineers Ltd.
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;
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;    ***************************************************************************
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;    *                                                                         *
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;    * If you are:                                                             *
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;    *                                                                         *
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;    *    + New to FreeRTOS,                                                   *
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;    *    + Wanting to learn FreeRTOS or multitasking in general quickly       *
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;    *    + Looking for basic training,                                        *
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;    *    + Wanting to improve your FreeRTOS skills and productivity           *
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;    *                                                                         *
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;    * then take a look at the FreeRTOS books - available as PDF or paperback  *
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;    *                                                                         *
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;    *        "Using the FreeRTOS Real Time Kernel - a Practical Guide"        *
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;    *                  http://www.FreeRTOS.org/Documentation                  *
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;    *                                                                         *
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;    * A pdf reference manual is also available.  Both are usually delivered   *
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;    * to your inbox within 20 minutes to two hours when purchased between 8am *
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;    * and 8pm GMT (although please allow up to 24 hours in case of            *
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;    * exceptional circumstances).  Thank you for your support!                *
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;    *                                                                         *
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;    ***************************************************************************
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;
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;    This file is part of the FreeRTOS distribution.
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;
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;    FreeRTOS is free software; you can redistribute it and/or modify it under
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;    the terms of the GNU General Public License (version 2) as published by the
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;    Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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;    ***NOTE*** The exception to the GPL is included to allow you to distribute
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;    a combined work that includes FreeRTOS without being obliged to provide the
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;    source code for proprietary components outside of the FreeRTOS kernel.
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;    FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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;    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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;    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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;    more details. You should have received a copy of the GNU General Public
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;    License and the FreeRTOS license exception along with FreeRTOS; if not it
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;    can be viewed here: http://www.freertos.org/a00114.html and also obtained
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;    by writing to Richard Barry, contact details for whom are available on the
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;    FreeRTOS WEB site.
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;
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;    1 tab == 4 spaces!
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;
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;    http://www.FreeRTOS.org - Documentation, latest information, license and
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;    contact details.
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;
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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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;
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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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        .import _pxCurrentTCB
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        .import _vTaskSwitchContext
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        .import _vTaskIncrementTick
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        .export _vPortStartFirstTask
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        .export _ulPortGetGBR
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        .export _vPortYieldHandler
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        .export _vPortPreemptiveTick
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        .export _vPortCooperativeTick
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        .export _vPortSaveFlopRegisters
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        .export _vPortRestoreFlopRegisters
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    .section    P
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        .INCLUDE "ISR_Support.inc"
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_vPortStartFirstTask:
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        portRESTORE_CONTEXT
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;-----------------------------------------------------------
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_vPortYieldHandler:
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        portSAVE_CONTEXT
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        mov.l   #_vTaskSwitchContext, r0
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        jsr             @r0
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        nop
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        portRESTORE_CONTEXT
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;-----------------------------------------------------------
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_vPortPreemptiveTick
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        portSAVE_CONTEXT
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        mov.l   #_vTaskIncrementTick, r0
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        jsr             @r0
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        nop
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        mov.l   #_vTaskSwitchContext, r0
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        jsr             @r0
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        nop
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        portRESTORE_CONTEXT
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;-----------------------------------------------------------
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_vPortCooperativeTick
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        portSAVE_CONTEXT
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        mov.l   #_vTaskIncrementTick, r0
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        jsr             @r0
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        nop
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        portRESTORE_CONTEXT
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;-----------------------------------------------------------
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_ulPortGetGBR:
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        stc.l   gbr, r0
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        rts
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        nop
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;-----------------------------------------------------------
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_vPortSaveFlopRegisters:
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        fmov.s  fr0, @-r4
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        fmov.s  fr1, @-r4
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        fmov.s  fr2, @-r4
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        fmov.s  fr3, @-r4
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        fmov.s  fr4, @-r4
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        fmov.s  fr5, @-r4
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        fmov.s  fr6, @-r4
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        fmov.s  fr7, @-r4
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        fmov.s  fr8, @-r4
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        fmov.s  fr9, @-r4
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        fmov.s  fr10, @-r4
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        fmov.s  fr11, @-r4
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        fmov.s  fr12, @-r4
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        fmov.s  fr13, @-r4
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        fmov.s  fr14, @-r4
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        fmov.s  fr15, @-r4
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        sts.l   fpul, @-r4
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        sts.l   fpscr, @-r4
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        rts
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        nop
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;-----------------------------------------------------------
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_vPortRestoreFlopRegisters:
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        add.l  #-72, r4
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        lds.l  @r4+, fpscr
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        lds.l  @r4+, fpul
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        fmov.s @r4+, fr15
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        fmov.s @r4+, fr14
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        fmov.s @r4+, fr13
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        fmov.s @r4+, fr12
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        fmov.s @r4+, fr11
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        fmov.s @r4+, fr10
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        fmov.s @r4+, fr9
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        fmov.s @r4+, fr8
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        fmov.s @r4+, fr7
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        fmov.s @r4+, fr6
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        fmov.s @r4+, fr5
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        fmov.s @r4+, fr4
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        fmov.s @r4+, fr3
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        fmov.s @r4+, fr2
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        fmov.s @r4+, fr1
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        fmov.s @r4+, fr0
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        rts
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        nop
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        .end
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