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+/* File: startup_armv7-m.S
+ * Purpose: startup file for armv7-m architecture devices.
+ * Should be used with ARMCLANG
+ * Version: V2.00
+ * Date: 16 November 2015
+ *
+ */
+/* Copyright (c) 2011 - 2015 ARM LIMITED
+
+ 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.
+ ---------------------------------------------------------------------------*/
+/*
+ ;//-------- <<< Use Configuration Wizard in Context Menu >>> ------------------
+*/
+
+
+ .syntax unified
+ .arch armv6-m
+
+/* .eabi_attribute Tag_ABI_align8_preserved,1 www.support.code-red-tech.com/CodeRedWiki/Preserve8 */
+.eabi_attribute 25, 1 /* Tag_ABI_align_preserved */
+
+
+/*
+ ;<h> Stack Configuration
+ ; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
+ ;</h>
+*/
+ .equ Stack_Size, 0x00000400
+
+ .section STACK, "w"
+ .align 3
+ .globl __StackTop
+ .globl __StackLimit
+__StackLimit:
+ .space Stack_Size
+__StackTop: /* formerly known as __initial_sp */
+
+
+/*
+ ;<h> Heap Configuration
+ ; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
+ ;</h>
+*/
+ .equ Heap_Size, 0x00000C00
+
+ .section HEAP, "w"
+ .align 3
+ .globl __HeapBase
+ .globl __HeapLimit
+__HeapBase:
+ .if Heap_Size
+ .space Heap_Size
+ .endif
+__HeapLimit:
+
+
+ .section RESET, "x"
+ .align 2
+ .globl __Vectors
+ .globl __Vectors_End
+ .globl __Vectors_Size
+__Vectors:
+ .long __StackTop /* Top of Stack */
+ .long Reset_Handler /* Reset Handler */
+ .long NMI_Handler /* NMI Handler */
+ .long HardFault_Handler /* Hard Fault Handler */
+ .long MemManage_Handler /* MPU Fault Handler */
+ .long BusFault_Handler /* Bus Fault Handler */
+ .long UsageFault_Handler /* Usage Fault Handler */
+ .long 0 /* Reserved */
+ .long 0 /* Reserved */
+ .long 0 /* Reserved */
+ .long 0 /* Reserved */
+ .long SVC_Handler /* SVCall Handler */
+ .long DebugMon_Handler /* Debug Monitor Handler */
+ .long 0 /* Reserved */
+ .long PendSV_Handler /* PendSV Handler */
+ .long SysTick_Handler /* SysTick Handler */
+__Vectors_End:
+
+ .equ __Vectors_Size, __Vectors_End - __Vectors
+
+
+ .text
+ .thumb
+ .align 2
+
+ .globl Reset_Handler
+ .weak Reset_Handler
+ .type Reset_Handler, %function
+ .thumb_func
+Reset_Handler:
+ bl SystemInit
+ bl __main
+
+ .globl NMI_Handler
+ .weak NMI_Handler
+ .type NMI_Handler, %function
+ .thumb_func
+NMI_Handler:
+ bkpt #0
+ b .
+
+ .globl HardFault_Handler
+ .weak HardFault_Handler
+ .type HardFault_Handler, %function
+ .thumb_func
+HardFault_Handler:
+ bkpt #0
+ b .
+
+ .globl MemManage_Handler
+ .weak MemManage_Handler
+ .type MemManage_Handler, %function
+ .thumb_func
+MemManage_Handler:
+ bkpt #0
+ b .
+
+ .globl BusFault_Handler
+ .weak BusFault_Handler
+ .type BusFault_Handler, %function
+ .thumb_func
+BusFault_Handler:
+ bkpt #0
+ b .
+
+ .globl UsageFault_Handler
+ .weak UsageFault_Handler
+ .type UsageFault_Handler, %function
+ .thumb_func
+UsageFault_Handler:
+ bkpt #0
+ b .
+
+ .globl SVC_Handler
+ .weak SVC_Handler
+ .type SVC_Handler, %function
+ .thumb_func
+SVC_Handler:
+ bkpt #0
+ b .
+
+ .globl DebugMon_Handler
+ .weak DebugMon_Handler
+ .type DebugMon_Handler, %function
+ .thumb_func
+DebugMon_Handler:
+ bkpt #0
+ b .
+
+ .globl PendSV_Handler
+ .weak PendSV_Handler
+ .type PendSV_Handler, %function
+ .thumb_func
+PendSV_Handler:
+ bkpt #0
+ b .
+
+ .globl SysTick_Handler
+ .weak SysTick_Handler
+ .type SysTick_Handler, %function
+ .thumb_func
+SysTick_Handler:
+ bkpt #0
+ b .
+
+
+ .global __use_two_region_memory
+
+/*
+ __user_setup_stackheap() returns the:
+ - heap base in r0 (if the program uses the heap)
+ - stack base in sp
+ - heap limit in r2 (if the program uses the heap and uses two-region memory).
+ */
+ .globl __user_setup_stackheap
+ .type __user_setup_stackheap, %function
+ .thumb_func
+__user_setup_stackheap:
+ ldr r0, =__StackTop
+ mov sp, r0
+ .if Heap_Size
+ ldr r0, =__HeapBase
+ ldr r2, =__HeapLimit
+ .else
+ mov r0, #0
+ mov r2, #0
+ .endif
+ bx lr
+
+
+/*
+__user_initial_stackheap() returns the:
+ - heap base in r0
+ - stack base in r1, that is, the highest address in the stack region
+ - heap limit in r2
+ - stack limit in r3, that is, the lowest address in the stack region.
+ */
+/* DEPRICATED
+ .globl __user_initial_stackheap
+ .type __user_initial_stackheap, %function
+ .thumb_func
+__user_initial_stackheap:
+ ldr r0, = __HeapBase
+ ldr r1, = __StackTop
+ ldr r2, = __HeapLimit
+ ldr r3, = __StackLimit
+ bx lr
+*/
+
+ .end
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