| /* File: startup_armv6-m.S |
| * Purpose: startup file for armv6-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 0 /* Reserved */ |
| .long 0 /* Reserved */ |
| .long 0 /* Reserved */ |
| .long 0 /* Reserved */ |
| .long 0 /* Reserved */ |
| .long 0 /* Reserved */ |
| .long 0 /* Reserved */ |
| .long SVC_Handler /* SVCall Handler */ |
| .long 0 /* Reserved */ |
| .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 SVC_Handler |
| .weak SVC_Handler |
| .type SVC_Handler, %function |
| .thumb_func |
| SVC_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 |