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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Source/] [portable/] [IAR/] [V850ES/] [ISR_Support.h] - Rev 582
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/* FreeRTOS V6.1.1 - Copyright (C) 2011 Real Time Engineers Ltd. *************************************************************************** * * * If you are: * * * * + New to FreeRTOS, * * + Wanting to learn FreeRTOS or multitasking in general quickly * * + Looking for basic training, * * + Wanting to improve your FreeRTOS skills and productivity * * * * then take a look at the FreeRTOS books - available as PDF or paperback * * * * "Using the FreeRTOS Real Time Kernel - a Practical Guide" * * http://www.FreeRTOS.org/Documentation * * * * A pdf reference manual is also available. Both are usually delivered * * to your inbox within 20 minutes to two hours when purchased between 8am * * and 8pm GMT (although please allow up to 24 hours in case of * * exceptional circumstances). Thank you for your support! * * * *************************************************************************** This file is part of the FreeRTOS distribution. FreeRTOS is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License (version 2) as published by the Free Software Foundation AND MODIFIED BY the FreeRTOS exception. ***NOTE*** The exception to the GPL is included to allow you to distribute a combined work that includes FreeRTOS without being obliged to provide the source code for proprietary components outside of the FreeRTOS kernel. FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License and the FreeRTOS license exception along with FreeRTOS; if not it can be viewed here: http://www.freertos.org/a00114.html and also obtained by writing to Richard Barry, contact details for whom are available on the FreeRTOS WEB site. 1 tab == 4 spaces! http://www.FreeRTOS.org - Documentation, latest information, license and contact details. http://www.SafeRTOS.com - A version that is certified for use in safety critical systems. http://www.OpenRTOS.com - Commercial support, development, porting, licensing and training services. */ EXTERN pxCurrentTCB EXTERN usCriticalNesting #include "FreeRTOSConfig.h" ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Context save and restore macro definitions ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; portSAVE_CONTEXT MACRO add -0x0C,sp ; prepare stack to save necessary values st.w lp,8[sp] ; store LP to stack stsr 0,r31 st.w lp,4[sp] ; store EIPC to stack stsr 1,lp st.w lp,0[sp] ; store EIPSW to stack #if configDATA_MODE == 1 ; Using the Tiny data model prepare {r20,r21,r22,r23,r24,r25,r26,r27,r28,r29,r30},76,sp ; save general purpose registers sst.w r19,72[ep] sst.w r18,68[ep] sst.w r17,64[ep] sst.w r16,60[ep] sst.w r15,56[ep] sst.w r14,52[ep] sst.w r13,48[ep] sst.w r12,44[ep] sst.w r11,40[ep] sst.w r10,36[ep] sst.w r9,32[ep] sst.w r8,28[ep] sst.w r7,24[ep] sst.w r6,20[ep] sst.w r5,16[ep] sst.w r4,12[ep] #else ; Using the Small/Large data model prepare {r20,r21,r22,r23,r24,r26,r27,r28,r29,r30},72,sp ; save general purpose registers sst.w r19,68[ep] sst.w r18,64[ep] sst.w r17,60[ep] sst.w r16,56[ep] sst.w r15,52[ep] sst.w r14,48[ep] sst.w r13,44[ep] sst.w r12,40[ep] sst.w r11,36[ep] sst.w r10,32[ep] sst.w r9,28[ep] sst.w r8,24[ep] sst.w r7,20[ep] sst.w r6,16[ep] sst.w r5,12[ep] #endif /* configDATA_MODE */ sst.w r2,8[ep] sst.w r1,4[ep] MOVHI hi1(usCriticalNesting),r0,r1 ; save usCriticalNesting value to stack ld.w lw1(usCriticalNesting)[r1],r2 sst.w r2,0[ep] MOVHI hi1(pxCurrentTCB),r0,r1 ; save SP to top of current TCB ld.w lw1(pxCurrentTCB)[r1],r2 st.w sp,0[r2] ENDM portRESTORE_CONTEXT MACRO MOVHI hi1(pxCurrentTCB),r0,r1 ; get Stackpointer address ld.w lw1(pxCurrentTCB)[r1],sp MOV sp,r1 ld.w 0[r1],sp ; load stackpointer MOV sp,ep ; set stack pointer to element pointer sld.w 0[ep],r1 ; load usCriticalNesting value from stack MOVHI hi1(usCriticalNesting),r0,r2 st.w r1,lw1(usCriticalNesting)[r2] sld.w 4[ep],r1 ; restore general purpose registers sld.w 8[ep],r2 #if configDATA_MODE == 1 ; Using Tiny data model sld.w 12[ep],r4 sld.w 16[ep],r5 sld.w 20[ep],r6 sld.w 24[ep],r7 sld.w 28[ep],r8 sld.w 32[ep],r9 sld.w 36[ep],r10 sld.w 40[ep],r11 sld.w 44[ep],r12 sld.w 48[ep],r13 sld.w 52[ep],r14 sld.w 56[ep],r15 sld.w 60[ep],r16 sld.w 64[ep],r17 sld.w 68[ep],r18 sld.w 72[ep],r19 dispose 76,{r20,r21,r22,r23,r24,r25,r26,r27,r28,r29,r30} #else ; Using Small/Large data model sld.w 12[ep],r5 sld.w 16[ep],r6 sld.w 20[ep],r7 sld.w 24[ep],r8 sld.w 28[ep],r9 sld.w 32[ep],r10 sld.w 36[ep],r11 sld.w 40[ep],r12 sld.w 44[ep],r13 sld.w 48[ep],r14 sld.w 52[ep],r15 sld.w 56[ep],r16 sld.w 60[ep],r17 sld.w 64[ep],r18 sld.w 68[ep],r19 dispose 72,{r20,r21,r22,r23,r24,r26,r27,r28,r29,r30} #endif /* configDATA_MODE */ ld.w 0[sp],lp ; restore EIPSW from stack ldsr lp,1 ld.w 4[sp],lp ; restore EIPC from stack ldsr lp,0 ld.w 8[sp],lp ; restore LP from stack add 0x0C,sp ; set SP to right position RETI ENDM
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