re-added RTX Source for reference purpose
This commit is contained in:
hathach
+370
@@ -0,0 +1,370 @@
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/*----------------------------------------------------------------------------
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* RL-ARM - RTX
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*----------------------------------------------------------------------------
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* Name: HAL_CM0.S
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* Purpose: Hardware Abstraction Layer for Cortex-M0
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* Rev.: V4.70
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*----------------------------------------------------------------------------
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*
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||||
* Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH
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||||
* All rights reserved.
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
* - Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* - Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* - Neither the name of ARM nor the names of its contributors may be used
|
||||
* to endorse or promote products derived from this software without
|
||||
* specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
|
||||
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
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||||
*---------------------------------------------------------------------------*/
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.file "HAL_CM0.S"
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.syntax unified
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.equ TCB_TSTACK, 36
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/*----------------------------------------------------------------------------
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* Functions
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*---------------------------------------------------------------------------*/
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.thumb
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.section ".text"
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.align 2
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/*--------------------------- rt_set_PSP ------------------------------------*/
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# void rt_set_PSP (U32 stack);
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.thumb_func
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.type rt_set_PSP, %function
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.global rt_set_PSP
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rt_set_PSP:
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.fnstart
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.cantunwind
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MSR PSP,R0
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BX LR
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.fnend
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.size rt_set_PSP, .-rt_set_PSP
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/*--------------------------- rt_get_PSP ------------------------------------*/
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# U32 rt_get_PSP (void);
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.thumb_func
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.type rt_get_PSP, %function
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.global rt_get_PSP
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rt_get_PSP:
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.fnstart
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.cantunwind
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MRS R0,PSP
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BX LR
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.fnend
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.size rt_get_PSP, .-rt_get_PSP
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/*--------------------------- os_set_env ------------------------------------*/
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# void os_set_env (void);
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/* Switch to Unprivileged/Privileged Thread mode, use PSP. */
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.thumb_func
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.type os_set_env, %function
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.global os_set_env
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os_set_env:
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.fnstart
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.cantunwind
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MOV R0,SP /* PSP = MSP */
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MSR PSP,R0
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LDR R0,=os_flags
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LDRB R0,[R0]
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LSLS R0,#31
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BNE PrivilegedE
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MOVS R0,#0x03 /* Unprivileged Thread mode, use PSP */
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MSR CONTROL,R0
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BX LR
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PrivilegedE:
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MOVS R0,#0x02 /* Privileged Thread mode, use PSP */
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MSR CONTROL,R0
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BX LR
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.fnend
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.size os_set_env, .-os_set_env
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/*--------------------------- _alloc_box ------------------------------------*/
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# void *_alloc_box (void *box_mem);
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/* Function wrapper for Unprivileged/Privileged mode. */
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.thumb_func
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.type _alloc_box, %function
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.global _alloc_box
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_alloc_box:
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.fnstart
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.cantunwind
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LDR R3,=rt_alloc_box
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MOV R12,R3
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MRS R3,IPSR
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LSLS R3,#24
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BNE PrivilegedA
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MRS R3,CONTROL
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LSLS R3,#31
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BEQ PrivilegedA
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SVC 0
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BX LR
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PrivilegedA:
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BX R12
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.fnend
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.size _alloc_box, .-_alloc_box
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/*--------------------------- _free_box -------------------------------------*/
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# int _free_box (void *box_mem, void *box);
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/* Function wrapper for Unprivileged/Privileged mode. */
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.thumb_func
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.type _free_box, %function
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.global _free_box
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_free_box:
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.fnstart
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.cantunwind
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LDR R3,=rt_free_box
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MOV R12,R3
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MRS R3,IPSR
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LSLS R3,#24
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BNE PrivilegedF
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MRS R3,CONTROL
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LSLS R3,#31
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BEQ PrivilegedF
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SVC 0
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BX LR
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PrivilegedF:
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BX R12
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.fnend
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.size _free_box, .-_free_box
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/*-------------------------- SVC_Handler ------------------------------------*/
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# void SVC_Handler (void);
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.thumb_func
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.type SVC_Handler, %function
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.global SVC_Handler
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SVC_Handler:
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.fnstart
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.cantunwind
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MRS R0,PSP /* Read PSP */
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LDR R1,[R0,#24] /* Read Saved PC from Stack */
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SUBS R1,R1,#2 /* Point to SVC Instruction */
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LDRB R1,[R1] /* Load SVC Number */
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CMP R1,#0
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BNE SVC_User /* User SVC Number > 0 */
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MOV LR,R4
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LDMIA R0,{R0-R3,R4} /* Read R0-R3,R12 from stack */
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MOV R12,R4
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MOV R4,LR
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BLX R12 /* Call SVC Function */
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MRS R3,PSP /* Read PSP */
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STMIA R3!,{R0-R2} /* Store return values */
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LDR R3,=os_tsk
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LDMIA R3!,{R1,R2} /* os_tsk.run, os_tsk.new */
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CMP R1,R2
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BEQ SVC_Exit /* no task switch */
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SUBS R3,#8
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CMP R1,#0 /* Runtask deleted? */
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BEQ SVC_Next
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MRS R0,PSP /* Read PSP */
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SUBS R0,R0,#32 /* Adjust Start Address */
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STR R0,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
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STMIA R0!,{R4-R7} /* Save old context (R4-R7) */
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MOV R4,R8
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MOV R5,R9
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MOV R6,R10
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MOV R7,R11
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STMIA R0!,{R4-R7} /* Save old context (R8-R11) */
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PUSH {R2,R3}
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BL rt_stk_check /* Check for Stack overflow */
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POP {R2,R3}
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SVC_Next:
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STR R2,[R3] /* os_tsk.run = os_tsk.new */
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LDR R0,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
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ADDS R0,R0,#16 /* Adjust Start Address */
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LDMIA R0!,{R4-R7} /* Restore new Context (R8-R11) */
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MOV R8,R4
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MOV R9,R5
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MOV R10,R6
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MOV R11,R7
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MSR PSP,R0 /* Write PSP */
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SUBS R0,R0,#32 /* Adjust Start Address */
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LDMIA R0!,{R4-R7} /* Restore new Context (R4-R7) */
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SVC_Exit:
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MOVS R0,#~0xFFFFFFFD /* Set EXC_RETURN value */
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MVNS R0,R0
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BX R0 /* RETI to Thread Mode, use PSP */
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/*------------------- User SVC ------------------------------*/
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SVC_User:
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PUSH {R4,LR} /* Save Registers */
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LDR R2,=SVC_Count
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LDR R2,[R2]
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CMP R1,R2
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BHI SVC_Done /* Overflow */
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LDR R4,=SVC_Table-4
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LSLS R1,R1,#2
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LDR R4,[R4,R1] /* Load SVC Function Address */
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MOV LR,R4
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LDMIA R0,{R0-R3,R4} /* Read R0-R3,R12 from stack */
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MOV R12,R4
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BLX LR /* Call SVC Function */
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MRS R4,PSP /* Read PSP */
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STMIA R4!,{R0-R3} /* Function return values */
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SVC_Done:
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POP {R4,PC} /* RETI */
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.fnend
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.size SVC_Handler, .-SVC_Handler
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/*-------------------------- PendSV_Handler ---------------------------------*/
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# void PendSV_Handler (void);
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.thumb_func
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.type PendSV_Handler, %function
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.global PendSV_Handler
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.global Sys_Switch
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PendSV_Handler:
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.fnstart
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.cantunwind
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BL rt_pop_req
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Sys_Switch:
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LDR R3,=os_tsk
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LDMIA R3!,{R1,R2} /* os_tsk.run, os_tsk.new */
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CMP R1,R2
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BEQ Sys_Exit /* no task switch */
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SUBS R3,#8
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MRS R0,PSP /* Read PSP */
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SUBS R0,R0,#32 /* Adjust Start Address */
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STR R0,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
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STMIA R0!,{R4-R7} /* Save old context (R4-R7) */
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MOV R4,R8
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MOV R5,R9
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MOV R6,R10
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MOV R7,R11
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STMIA R0!,{R4-R7} /* Save old context (R8-R11) */
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PUSH {R2,R3}
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BL rt_stk_check /* Check for Stack overflow */
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POP {R2,R3}
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STR R2,[R3] /* os_tsk.run = os_tsk.new */
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LDR R0,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
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ADDS R0,R0,#16 /* Adjust Start Address */
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LDMIA R0!,{R4-R7} /* Restore new Context (R8-R11) */
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MOV R8,R4
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MOV R9,R5
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MOV R10,R6
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MOV R11,R7
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MSR PSP,R0 /* Write PSP */
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SUBS R0,R0,#32 /* Adjust Start Address */
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LDMIA R0!,{R4-R7} /* Restore new Context (R4-R7) */
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Sys_Exit:
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MOVS R0,#~0xFFFFFFFD /* Set EXC_RETURN value */
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MVNS R0,R0
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BX R0 /* RETI to Thread Mode, use PSP */
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.fnend
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.size PendSV_Handler, .-PendSV_Handler
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/*-------------------------- SysTick_Handler --------------------------------*/
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||||
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# void SysTick_Handler (void);
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.thumb_func
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.type SysTick_Handler, %function
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.global SysTick_Handler
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SysTick_Handler:
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.fnstart
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.cantunwind
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BL rt_systick
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B Sys_Switch
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.fnend
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.size SysTick_Handler, .-SysTick_Handler
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|
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/*-------------------------- OS_Tick_Handler --------------------------------*/
|
||||
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# void OS_Tick_Handler (void);
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.thumb_func
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||||
.type OS_Tick_Handler, %function
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||||
.global OS_Tick_Handler
|
||||
OS_Tick_Handler:
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.fnstart
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||||
.cantunwind
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||||
|
||||
BL os_tick_irqack
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||||
BL rt_systick
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||||
B Sys_Switch
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||||
|
||||
.fnend
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||||
.size OS_Tick_Handler, .-OS_Tick_Handler
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||||
|
||||
|
||||
.end
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||||
|
||||
/*----------------------------------------------------------------------------
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||||
* end of file
|
||||
*---------------------------------------------------------------------------*/
|
||||
+345
@@ -0,0 +1,345 @@
|
||||
/*----------------------------------------------------------------------------
|
||||
* RL-ARM - RTX
|
||||
*----------------------------------------------------------------------------
|
||||
* Name: HAL_CM3.S
|
||||
* Purpose: Hardware Abstraction Layer for Cortex-M3
|
||||
* Rev.: V4.70
|
||||
*----------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH
|
||||
* All rights reserved.
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
* - Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* - Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* - Neither the name of ARM nor the names of its contributors may be used
|
||||
* to endorse or promote products derived from this software without
|
||||
* specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
|
||||
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*---------------------------------------------------------------------------*/
|
||||
|
||||
.file "HAL_CM3.S"
|
||||
.syntax unified
|
||||
|
||||
.equ TCB_TSTACK, 36
|
||||
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
* Functions
|
||||
*---------------------------------------------------------------------------*/
|
||||
|
||||
.thumb
|
||||
|
||||
.section ".text"
|
||||
.align 2
|
||||
|
||||
|
||||
/*--------------------------- rt_set_PSP ------------------------------------*/
|
||||
|
||||
# void rt_set_PSP (U32 stack);
|
||||
|
||||
.thumb_func
|
||||
.type rt_set_PSP, %function
|
||||
.global rt_set_PSP
|
||||
rt_set_PSP:
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
MSR PSP,R0
|
||||
BX LR
|
||||
|
||||
.fnend
|
||||
.size rt_set_PSP, .-rt_set_PSP
|
||||
|
||||
|
||||
/*--------------------------- rt_get_PSP ------------------------------------*/
|
||||
|
||||
# U32 rt_get_PSP (void);
|
||||
|
||||
.thumb_func
|
||||
.type rt_get_PSP, %function
|
||||
.global rt_get_PSP
|
||||
rt_get_PSP:
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
MRS R0,PSP
|
||||
BX LR
|
||||
|
||||
.fnend
|
||||
.size rt_get_PSP, .-rt_get_PSP
|
||||
|
||||
|
||||
/*--------------------------- os_set_env ------------------------------------*/
|
||||
|
||||
# void os_set_env (void);
|
||||
/* Switch to Unprivileged/Privileged Thread mode, use PSP. */
|
||||
|
||||
.thumb_func
|
||||
.type os_set_env, %function
|
||||
.global os_set_env
|
||||
os_set_env:
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
MOV R0,SP /* PSP = MSP */
|
||||
MSR PSP,R0
|
||||
LDR R0,=os_flags
|
||||
LDRB R0,[R0]
|
||||
LSLS R0,#31
|
||||
ITE NE
|
||||
MOVNE R0,#0x02 /* Privileged Thread mode, use PSP */
|
||||
MOVEQ R0,#0x03 /* Unprivileged Thread mode, use PSP */
|
||||
MSR CONTROL,R0
|
||||
BX LR
|
||||
|
||||
.fnend
|
||||
.size os_set_env, .-os_set_env
|
||||
|
||||
|
||||
/*--------------------------- _alloc_box ------------------------------------*/
|
||||
|
||||
# void *_alloc_box (void *box_mem);
|
||||
/* Function wrapper for Unprivileged/Privileged mode. */
|
||||
|
||||
.thumb_func
|
||||
.type _alloc_box, %function
|
||||
.global _alloc_box
|
||||
_alloc_box:
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
LDR R12,=rt_alloc_box
|
||||
MRS R3,IPSR
|
||||
LSLS R3,#24
|
||||
IT NE
|
||||
BXNE R12
|
||||
MRS R3,CONTROL
|
||||
LSLS R3,#31
|
||||
IT EQ
|
||||
BXEQ R12
|
||||
SVC 0
|
||||
BX LR
|
||||
|
||||
.fnend
|
||||
.size _alloc_box, .-_alloc_box
|
||||
|
||||
|
||||
/*--------------------------- _free_box -------------------------------------*/
|
||||
|
||||
# int _free_box (void *box_mem, void *box);
|
||||
/* Function wrapper for Unprivileged/Privileged mode. */
|
||||
|
||||
.thumb_func
|
||||
.type _free_box, %function
|
||||
.global _free_box
|
||||
_free_box:
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
LDR R12,=rt_free_box
|
||||
MRS R3,IPSR
|
||||
LSLS R3,#24
|
||||
IT NE
|
||||
BXNE R12
|
||||
MRS R3,CONTROL
|
||||
LSLS R3,#31
|
||||
IT EQ
|
||||
BXEQ R12
|
||||
SVC 0
|
||||
BX LR
|
||||
|
||||
.fnend
|
||||
.size _free_box, .-_free_box
|
||||
|
||||
|
||||
/*-------------------------- SVC_Handler ------------------------------------*/
|
||||
|
||||
# void SVC_Handler (void);
|
||||
|
||||
.thumb_func
|
||||
.type SVC_Handler, %function
|
||||
.global SVC_Handler
|
||||
SVC_Handler:
|
||||
.ifdef IFX_XMC4XXX
|
||||
.global SVC_Handler_Veneer
|
||||
SVC_Handler_Veneer:
|
||||
.endif
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
MRS R0,PSP /* Read PSP */
|
||||
LDR R1,[R0,#24] /* Read Saved PC from Stack */
|
||||
LDRB R1,[R1,#-2] /* Load SVC Number */
|
||||
CBNZ R1,SVC_User
|
||||
|
||||
LDM R0,{R0-R3,R12} /* Read R0-R3,R12 from stack */
|
||||
BLX R12 /* Call SVC Function */
|
||||
|
||||
MRS R12,PSP /* Read PSP */
|
||||
STM R12,{R0-R2} /* Store return values */
|
||||
|
||||
LDR R3,=os_tsk
|
||||
LDM R3,{R1,R2} /* os_tsk.run, os_tsk.new */
|
||||
CMP R1,R2
|
||||
BEQ SVC_Exit /* no task switch */
|
||||
|
||||
CBZ R1,SVC_Next /* Runtask deleted? */
|
||||
STMDB R12!,{R4-R11} /* Save Old context */
|
||||
STR R12,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
|
||||
|
||||
PUSH {R2,R3}
|
||||
BL rt_stk_check /* Check for Stack overflow */
|
||||
POP {R2,R3}
|
||||
|
||||
SVC_Next:
|
||||
STR R2,[R3] /* os_tsk.run = os_tsk.new */
|
||||
|
||||
LDR R12,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
|
||||
LDMIA R12!,{R4-R11} /* Restore New Context */
|
||||
MSR PSP,R12 /* Write PSP */
|
||||
|
||||
SVC_Exit:
|
||||
MVN LR,#~0xFFFFFFFD /* set EXC_RETURN value */
|
||||
.ifdef IFX_XMC4XXX
|
||||
PUSH {LR}
|
||||
POP {PC}
|
||||
.else
|
||||
BX LR
|
||||
.endif
|
||||
|
||||
/*------------------- User SVC ------------------------------*/
|
||||
|
||||
SVC_User:
|
||||
PUSH {R4,LR} /* Save Registers */
|
||||
LDR R2,=SVC_Count
|
||||
LDR R2,[R2]
|
||||
CMP R1,R2
|
||||
BHI SVC_Done /* Overflow */
|
||||
|
||||
LDR R4,=SVC_Table-4
|
||||
LDR R4,[R4,R1,LSL #2] /* Load SVC Function Address */
|
||||
|
||||
LDM R0,{R0-R3,R12} /* Read R0-R3,R12 from stack */
|
||||
BLX R4 /* Call SVC Function */
|
||||
|
||||
MRS R12,PSP
|
||||
STM R12,{R0-R3} /* Function return values */
|
||||
SVC_Done:
|
||||
POP {R4,PC} /* RETI */
|
||||
|
||||
.fnend
|
||||
.size SVC_Handler, .-SVC_Handler
|
||||
|
||||
|
||||
/*-------------------------- PendSV_Handler ---------------------------------*/
|
||||
|
||||
# void PendSV_Handler (void);
|
||||
|
||||
.thumb_func
|
||||
.type PendSV_Handler, %function
|
||||
.global PendSV_Handler
|
||||
.global Sys_Switch
|
||||
PendSV_Handler:
|
||||
.ifdef IFX_XMC4XXX
|
||||
.global PendSV_Handler_Veneer
|
||||
PendSV_Handler_Veneer:
|
||||
.endif
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
BL rt_pop_req
|
||||
|
||||
Sys_Switch:
|
||||
LDR R3,=os_tsk
|
||||
LDM R3,{R1,R2} /* os_tsk.run, os_tsk.new */
|
||||
CMP R1,R2
|
||||
BEQ Sys_Exit
|
||||
|
||||
MRS R12,PSP /* Read PSP */
|
||||
STMDB R12!,{R4-R11} /* Save Old context */
|
||||
STR R12,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
|
||||
|
||||
PUSH {R2,R3}
|
||||
BL rt_stk_check /* Check for Stack overflow */
|
||||
POP {R2,R3}
|
||||
|
||||
STR R2,[R3] /* os_tsk.run = os_tsk.new */
|
||||
|
||||
LDR R12,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
|
||||
LDMIA R12!,{R4-R11} /* Restore New Context */
|
||||
MSR PSP,R12 /* Write PSP */
|
||||
|
||||
Sys_Exit:
|
||||
MVN LR,#~0xFFFFFFFD /* set EXC_RETURN value */
|
||||
.ifdef IFX_XMC4XXX
|
||||
PUSH {LR}
|
||||
POP {PC}
|
||||
.else
|
||||
BX LR /* Return to Thread Mode */
|
||||
.endif
|
||||
|
||||
.fnend
|
||||
.size PendSV_Handler, .-PendSV_Handler
|
||||
|
||||
|
||||
/*-------------------------- SysTick_Handler --------------------------------*/
|
||||
|
||||
# void SysTick_Handler (void);
|
||||
|
||||
.thumb_func
|
||||
.type SysTick_Handler, %function
|
||||
.global SysTick_Handler
|
||||
SysTick_Handler:
|
||||
.ifdef IFX_XMC4XXX
|
||||
.global SysTick_Handler_Veneer
|
||||
SysTick_Handler_Veneer:
|
||||
.endif
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
BL rt_systick
|
||||
B Sys_Switch
|
||||
|
||||
.fnend
|
||||
.size SysTick_Handler, .-SysTick_Handler
|
||||
|
||||
|
||||
/*-------------------------- OS_Tick_Handler --------------------------------*/
|
||||
|
||||
# void OS_Tick_Handler (void);
|
||||
|
||||
.thumb_func
|
||||
.type OS_Tick_Handler, %function
|
||||
.global OS_Tick_Handler
|
||||
OS_Tick_Handler:
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
BL os_tick_irqack
|
||||
BL rt_systick
|
||||
B Sys_Switch
|
||||
|
||||
.fnend
|
||||
.size OS_Tick_Handler, .-OS_Tick_Handler
|
||||
|
||||
|
||||
.end
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
* end of file
|
||||
*---------------------------------------------------------------------------*/
|
||||
+389
@@ -0,0 +1,389 @@
|
||||
/*----------------------------------------------------------------------------
|
||||
* RL-ARM - RTX
|
||||
*----------------------------------------------------------------------------
|
||||
* Name: HAL_CM4.S
|
||||
* Purpose: Hardware Abstraction Layer for Cortex-M4
|
||||
* Rev.: V4.70
|
||||
*----------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH
|
||||
* All rights reserved.
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
* - Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* - Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* - Neither the name of ARM nor the names of its contributors may be used
|
||||
* to endorse or promote products derived from this software without
|
||||
* specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
|
||||
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*---------------------------------------------------------------------------*/
|
||||
|
||||
.file "HAL_CM4.S"
|
||||
.syntax unified
|
||||
|
||||
.equ TCB_STACKF, 32
|
||||
.equ TCB_TSTACK, 36
|
||||
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
* Functions
|
||||
*---------------------------------------------------------------------------*/
|
||||
|
||||
.thumb
|
||||
|
||||
.section ".text"
|
||||
.align 2
|
||||
|
||||
|
||||
/*--------------------------- rt_set_PSP ------------------------------------*/
|
||||
|
||||
# void rt_set_PSP (U32 stack);
|
||||
|
||||
.thumb_func
|
||||
.type rt_set_PSP, %function
|
||||
.global rt_set_PSP
|
||||
rt_set_PSP:
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
MSR PSP,R0
|
||||
BX LR
|
||||
|
||||
.fnend
|
||||
.size rt_set_PSP, .-rt_set_PSP
|
||||
|
||||
|
||||
/*--------------------------- rt_get_PSP ------------------------------------*/
|
||||
|
||||
# U32 rt_get_PSP (void);
|
||||
|
||||
.thumb_func
|
||||
.type rt_get_PSP, %function
|
||||
.global rt_get_PSP
|
||||
rt_get_PSP:
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
MRS R0,PSP
|
||||
BX LR
|
||||
|
||||
.fnend
|
||||
.size rt_get_PSP, .-rt_get_PSP
|
||||
|
||||
|
||||
/*--------------------------- os_set_env ------------------------------------*/
|
||||
|
||||
# void os_set_env (void);
|
||||
/* Switch to Unprivileged/Privileged Thread mode, use PSP. */
|
||||
|
||||
.thumb_func
|
||||
.type os_set_env, %function
|
||||
.global os_set_env
|
||||
os_set_env:
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
MOV R0,SP /* PSP = MSP */
|
||||
MSR PSP,R0
|
||||
LDR R0,=os_flags
|
||||
LDRB R0,[R0]
|
||||
LSLS R0,#31
|
||||
ITE NE
|
||||
MOVNE R0,#0x02 /* Privileged Thread mode, use PSP */
|
||||
MOVEQ R0,#0x03 /* Unprivileged Thread mode, use PSP */
|
||||
MSR CONTROL,R0
|
||||
BX LR
|
||||
|
||||
.fnend
|
||||
.size os_set_env, .-os_set_env
|
||||
|
||||
|
||||
/*--------------------------- _alloc_box ------------------------------------*/
|
||||
|
||||
# void *_alloc_box (void *box_mem);
|
||||
/* Function wrapper for Unprivileged/Privileged mode. */
|
||||
|
||||
.thumb_func
|
||||
.type _alloc_box, %function
|
||||
.global _alloc_box
|
||||
_alloc_box:
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
LDR R12,=rt_alloc_box
|
||||
MRS R3,IPSR
|
||||
LSLS R3,#24
|
||||
IT NE
|
||||
BXNE R12
|
||||
MRS R3,CONTROL
|
||||
LSLS R3,#31
|
||||
IT EQ
|
||||
BXEQ R12
|
||||
SVC 0
|
||||
BX LR
|
||||
|
||||
.fnend
|
||||
.size _alloc_box, .-_alloc_box
|
||||
|
||||
|
||||
/*--------------------------- _free_box -------------------------------------*/
|
||||
|
||||
# int _free_box (void *box_mem, void *box);
|
||||
/* Function wrapper for Unprivileged/Privileged mode. */
|
||||
|
||||
.thumb_func
|
||||
.type _free_box, %function
|
||||
.global _free_box
|
||||
_free_box:
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
LDR R12,=rt_free_box
|
||||
MRS R3,IPSR
|
||||
LSLS R3,#24
|
||||
IT NE
|
||||
BXNE R12
|
||||
MRS R3,CONTROL
|
||||
LSLS R3,#31
|
||||
IT EQ
|
||||
BXEQ R12
|
||||
SVC 0
|
||||
BX LR
|
||||
|
||||
.fnend
|
||||
.size _free_box, .-_free_box
|
||||
|
||||
|
||||
/*-------------------------- SVC_Handler ------------------------------------*/
|
||||
|
||||
# void SVC_Handler (void);
|
||||
|
||||
.thumb_func
|
||||
.type SVC_Handler, %function
|
||||
.global SVC_Handler
|
||||
SVC_Handler:
|
||||
.ifdef IFX_XMC4XXX
|
||||
.global SVC_Handler_Veneer
|
||||
SVC_Handler_Veneer:
|
||||
.endif
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
MRS R0,PSP /* Read PSP */
|
||||
LDR R1,[R0,#24] /* Read Saved PC from Stack */
|
||||
LDRB R1,[R1,#-2] /* Load SVC Number */
|
||||
CBNZ R1,SVC_User
|
||||
|
||||
LDM R0,{R0-R3,R12} /* Read R0-R3,R12 from stack */
|
||||
PUSH {R4,LR} /* Save EXC_RETURN */
|
||||
BLX R12 /* Call SVC Function */
|
||||
POP {R4,LR} /* Restore EXC_RETURN */
|
||||
|
||||
MRS R12,PSP /* Read PSP */
|
||||
STM R12,{R0-R2} /* Store return values */
|
||||
|
||||
LDR R3,=os_tsk
|
||||
LDM R3,{R1,R2} /* os_tsk.run, os_tsk.new */
|
||||
CMP R1,R2
|
||||
.ifdef IFX_XMC4XXX
|
||||
ITT EQ
|
||||
PUSHEQ {LR}
|
||||
POPEQ {PC}
|
||||
.else
|
||||
IT EQ
|
||||
BXEQ LR /* RETI, no task switch */
|
||||
.endif
|
||||
|
||||
CBZ R1,SVC_Next /* Runtask deleted? */
|
||||
TST LR,#0x10 /* is it extended frame? */
|
||||
ITTE EQ
|
||||
VSTMDBEQ R12!,{S16-S31} /* yes, stack also VFP hi-regs */
|
||||
MOVEQ R0,#0x01 /* os_tsk->stack_frame val */
|
||||
MOVNE R0,#0x00
|
||||
STRB R0,[R1,#TCB_STACKF] /* os_tsk.run->stack_frame = val */
|
||||
STMDB R12!,{R4-R11} /* Save Old context */
|
||||
STR R12,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
|
||||
|
||||
PUSH {R2,R3}
|
||||
BL rt_stk_check /* Check for Stack overflow */
|
||||
POP {R2,R3}
|
||||
|
||||
SVC_Next:
|
||||
STR R2,[R3] /* os_tsk.run = os_tsk.new */
|
||||
|
||||
LDR R12,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
|
||||
LDMIA R12!,{R4-R11} /* Restore New Context */
|
||||
LDRB R0,[R2,#TCB_STACKF] /* Stack Frame */
|
||||
CMP R0,#0 /* Basic/Extended Stack Frame */
|
||||
ITTE NE
|
||||
VLDMIANE R12!,{S16-S31} /* restore VFP hi-registers */
|
||||
MVNNE LR,#~0xFFFFFFED /* set EXC_RETURN value */
|
||||
MVNEQ LR,#~0xFFFFFFFD
|
||||
MSR PSP,R12 /* Write PSP */
|
||||
|
||||
SVC_Exit:
|
||||
.ifdef IFX_XMC4XXX
|
||||
PUSH {LR}
|
||||
POP {PC}
|
||||
.else
|
||||
BX LR
|
||||
.endif
|
||||
|
||||
/*------------------- User SVC ------------------------------*/
|
||||
|
||||
SVC_User:
|
||||
PUSH {R4,LR} /* Save Registers */
|
||||
LDR R2,=SVC_Count
|
||||
LDR R2,[R2]
|
||||
CMP R1,R2
|
||||
BHI SVC_Done /* Overflow */
|
||||
|
||||
LDR R4,=SVC_Table-4
|
||||
LDR R4,[R4,R1,LSL #2] /* Load SVC Function Address */
|
||||
|
||||
LDM R0,{R0-R3,R12} /* Read R0-R3,R12 from stack */
|
||||
BLX R4 /* Call SVC Function */
|
||||
|
||||
MRS R12,PSP
|
||||
STM R12,{R0-R3} /* Function return values */
|
||||
SVC_Done:
|
||||
POP {R4,PC} /* RETI */
|
||||
|
||||
.fnend
|
||||
.size SVC_Handler, .-SVC_Handler
|
||||
|
||||
|
||||
/*-------------------------- PendSV_Handler ---------------------------------*/
|
||||
|
||||
# void PendSV_Handler (void);
|
||||
|
||||
.thumb_func
|
||||
.type PendSV_Handler, %function
|
||||
.global PendSV_Handler
|
||||
.global Sys_Switch
|
||||
PendSV_Handler:
|
||||
.ifdef IFX_XMC4XXX
|
||||
.global PendSV_Handler_Veneer
|
||||
PendSV_Handler_Veneer:
|
||||
.endif
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
PUSH {R4,LR} /* Save EXC_RETURN */
|
||||
BL rt_pop_req
|
||||
|
||||
Sys_Switch:
|
||||
POP {R4,LR} /* Restore EXC_RETURN */
|
||||
|
||||
LDR R3,=os_tsk
|
||||
LDM R3,{R1,R2} /* os_tsk.run, os_tsk.new */
|
||||
CMP R1,R2
|
||||
.ifdef IFX_XMC4XXX
|
||||
ITT EQ
|
||||
PUSHEQ {LR}
|
||||
POPEQ {PC}
|
||||
.else
|
||||
IT EQ
|
||||
BXEQ LR /* RETI, no task switch */
|
||||
.endif
|
||||
|
||||
MRS R12,PSP /* Read PSP */
|
||||
TST LR,#0x10 /* is it extended frame? */
|
||||
ITTE EQ
|
||||
VSTMDBEQ R12!,{S16-S31} /* yes, stack also VFP hi-regs */
|
||||
MOVEQ R0,#0x01 /* os_tsk->stack_frame val */
|
||||
MOVNE R0,#0x00
|
||||
STRB R0,[R1,#TCB_STACKF] /* os_tsk.run->stack_frame = val */
|
||||
STMDB R12!,{R4-R11} /* Save Old context */
|
||||
STR R12,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
|
||||
|
||||
PUSH {R2,R3}
|
||||
BL rt_stk_check /* Check for Stack overflow */
|
||||
POP {R2,R3}
|
||||
|
||||
STR R2,[R3] /* os_tsk.run = os_tsk.new */
|
||||
|
||||
LDR R12,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
|
||||
LDMIA R12!,{R4-R11} /* Restore New Context */
|
||||
LDRB R0,[R2,#TCB_STACKF] /* Stack Frame */
|
||||
CMP R0,#0 /* Basic/Extended Stack Frame */
|
||||
ITTE NE
|
||||
VLDMIANE R12!,{S16-S31} /* restore VFP hi-registers */
|
||||
MVNNE LR,#~0xFFFFFFED /* set EXC_RETURN value */
|
||||
MVNEQ LR,#~0xFFFFFFFD
|
||||
MSR PSP,R12 /* Write PSP */
|
||||
|
||||
Sys_Exit:
|
||||
.ifdef IFX_XMC4XXX
|
||||
PUSH {LR}
|
||||
POP {PC}
|
||||
.else
|
||||
BX LR /* Return to Thread Mode */
|
||||
.endif
|
||||
|
||||
.fnend
|
||||
.size PendSV_Handler, .-PendSV_Handler
|
||||
|
||||
|
||||
/*-------------------------- SysTick_Handler --------------------------------*/
|
||||
|
||||
# void SysTick_Handler (void);
|
||||
|
||||
.thumb_func
|
||||
.type SysTick_Handler, %function
|
||||
.global SysTick_Handler
|
||||
SysTick_Handler:
|
||||
.ifdef IFX_XMC4XXX
|
||||
.global SysTick_Handler_Veneer
|
||||
SysTick_Handler_Veneer:
|
||||
.endif
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
PUSH {R4,LR} /* Save EXC_RETURN */
|
||||
BL rt_systick
|
||||
B Sys_Switch
|
||||
|
||||
.fnend
|
||||
.size SysTick_Handler, .-SysTick_Handler
|
||||
|
||||
|
||||
/*-------------------------- OS_Tick_Handler --------------------------------*/
|
||||
|
||||
# void OS_Tick_Handler (void);
|
||||
|
||||
.thumb_func
|
||||
.type OS_Tick_Handler, %function
|
||||
.global OS_Tick_Handler
|
||||
OS_Tick_Handler:
|
||||
.fnstart
|
||||
.cantunwind
|
||||
|
||||
PUSH {R4,LR} /* Save EXC_RETURN */
|
||||
BL os_tick_irqack
|
||||
BL rt_systick
|
||||
B Sys_Switch
|
||||
|
||||
.fnend
|
||||
.size OS_Tick_Handler, .-OS_Tick_Handler
|
||||
|
||||
|
||||
.end
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
* end of file
|
||||
*---------------------------------------------------------------------------*/
|
||||
+1399
File diff suppressed because it is too large
Load Diff
+3957
File diff suppressed because it is too large
Load Diff
+56
@@ -0,0 +1,56 @@
|
||||
;/*----------------------------------------------------------------------------
|
||||
; * RL-ARM - RTX
|
||||
; *----------------------------------------------------------------------------
|
||||
; * Name: SVC_TABLE.S
|
||||
; * Purpose: Pre-defined SVC Table for Cortex-M
|
||||
; * Rev.: V4.70
|
||||
; *----------------------------------------------------------------------------
|
||||
; *
|
||||
; * Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH
|
||||
; * All rights reserved.
|
||||
; * Redistribution and use in source and binary forms, with or without
|
||||
; * modification, are permitted provided that the following conditions are met:
|
||||
; * - Redistributions of source code must retain the above copyright
|
||||
; * notice, this list of conditions and the following disclaimer.
|
||||
; * - Redistributions in binary form must reproduce the above copyright
|
||||
; * notice, this list of conditions and the following disclaimer in the
|
||||
; * documentation and/or other materials provided with the distribution.
|
||||
; * - Neither the name of ARM nor the names of its contributors may be used
|
||||
; * to endorse or promote products derived from this software without
|
||||
; * specific prior written permission.
|
||||
; *
|
||||
; * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
; * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
; * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
; * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
|
||||
; * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
; * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
; * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
; * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
; * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
; * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
; * POSSIBILITY OF SUCH DAMAGE.
|
||||
; *---------------------------------------------------------------------------*/
|
||||
|
||||
|
||||
.file "SVC_Table.S"
|
||||
|
||||
|
||||
.section ".svc_table"
|
||||
|
||||
.global SVC_Table
|
||||
SVC_Table:
|
||||
/* Insert user SVC functions here. SVC 0 used by RTL Kernel. */
|
||||
# .long __SVC_1 /* user SVC function */
|
||||
SVC_End:
|
||||
|
||||
.global SVC_Count
|
||||
SVC_Count:
|
||||
.long (SVC_End-SVC_Table)/4
|
||||
|
||||
|
||||
.end
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
* end of file
|
||||
*---------------------------------------------------------------------------*/
|
||||
Reference in New Issue
Block a user