begriffs open source - freertos/blob - Source/portable/Rowley/MSP430F449/portasm.h

   1 /*\r
   2         FreeRTOS V5.4.1 - Copyright (C) 2009 Real Time Engineers Ltd.\r
   3 \r
   4         This file is part of the FreeRTOS distribution.\r
   5 \r
   6         FreeRTOS is free software; you can redistribute it and/or modify it     under \r
   7         the terms of the GNU General Public License (version 2) as published by the \r
   8         Free Software Foundation and modified by the FreeRTOS exception.\r
   9         **NOTE** The exception to the GPL is included to allow you to distribute a\r
  10         combined work that includes FreeRTOS without being obliged to provide the \r
  11         source code for proprietary components outside of the FreeRTOS kernel.  \r
  12         Alternative commercial license and support terms are also available upon \r
  13         request.  See the licensing section of http://www.FreeRTOS.org for full \r
  14         license details.\r
  15 \r
  16         FreeRTOS is distributed in the hope that it will be useful,     but WITHOUT\r
  17         ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or\r
  18         FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for\r
  19         more details.\r
  20 \r
  21         You should have received a copy of the GNU General Public License along\r
  22         with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59\r
  23         Temple Place, Suite 330, Boston, MA  02111-1307  USA.\r
  24 \r
  25 \r
  26         ***************************************************************************\r
  27         *                                                                         *\r
  28         * Looking for a quick start?  Then check out the FreeRTOS eBook!          *\r
  29         * See http://www.FreeRTOS.org/Documentation for details                   *\r
  30         *                                                                         *\r
  31         ***************************************************************************\r
  32 \r
  33         1 tab == 4 spaces!\r
  34 \r
  35         Please ensure to read the configuration and relevant port sections of the\r
  36         online documentation.\r
  37 \r
  38         http://www.FreeRTOS.org - Documentation, latest information, license and\r
  39         contact details.\r
  40 \r
  41         http://www.SafeRTOS.com - A version that is certified for use in safety\r
  42         critical systems.\r
  43 \r
  44         http://www.OpenRTOS.com - Commercial support, development, porting,\r
  45         licensing and training services.\r
  46 */\r
  47 \r
  48 #ifndef PORT_ASM_H\r
  49 #define PORT_ASM_H\r
  50 \r
  51 portSAVE_CONTEXT macro\r
  52                 /* Save the remaining registers. */\r
  53                 push    r4\r
  54                 push    r5\r
  55                 push    r6\r
  56                 push    r7\r
  57                 push    r8\r
  58                 push    r9\r
  59                 push    r10\r
  60                 push    r11\r
  61                 push    r12\r
  62                 push    r13\r
  63                 push    r14\r
  64                 push    r15\r
  65                 mov.w   &_usCriticalNesting, r14\r
  66                 push    r14\r
  67                 mov.w   &_pxCurrentTCB, r12\r
  68                 mov.w   r1, @r12\r
  69                 endm\r
  70 /*-----------------------------------------------------------*/\r
  71                 \r
  72 portRESTORE_CONTEXT macro\r
  73                 mov.w   &_pxCurrentTCB, r12\r
  74                 mov.w   @r12, r1\r
  75                 pop             r15\r
  76                 mov.w   r15, &_usCriticalNesting\r
  77                 pop             r15\r
  78                 pop             r14\r
  79                 pop             r13\r
  80                 pop             r12\r
  81                 pop             r11\r
  82                 pop             r10\r
  83                 pop             r9\r
  84                 pop             r8\r
  85                 pop             r7\r
  86                 pop             r6\r
  87                 pop             r5\r
  88                 pop             r4\r
  89 \r
  90                 /* The last thing on the stack will be the status register.\r
  91                 Ensure the power down bits are clear ready for the next\r
  92                 time this power down register is popped from the stack. */\r
  93                 bic.w   #0xf0,0(SP)\r
  94 \r
  95                 reti\r
  96                 endm\r
  97 /*-----------------------------------------------------------*/\r
  98 \r
  99 #endif\r
 100 \r