circuitpython/nrf5/device/nrf52/startup_nrf52.s

267 lines
6.2 KiB
ArmAsm

/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Glenn Ruben Bakke
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
.syntax unified
.arch armv6-m
.section .stack
.align 3
.global __Vectors
.global Default_Handler
.word _sidata
.word _sdata
.word _edata
.word _sbss
.word _ebss
/* Reset Handler */
.text
.thumb
.thumb_func
.align 1
.globl Reset_Handler
.type Reset_Handler, %function
Reset_Handler:
.fnstart
ldr r1, =_sidata
ldr r2, =_sdata
ldr r3, =_sbss
subs r3, r2
ble CopyDone
b CopyData
CopyData:
subs r3, #4
ldr r0, [r1,r3]
str r0, [r2,r3]
bgt CopyData
CopyDone:
ldr r1, =_sbss
ldr r2, =_ebss
movs r0, 0
subs r2, r1
ble ZeroDone
ZeroLoop:
subs r2, #4
str r0, [r1, r2]
bgt ZeroLoop
ZeroDone:
bl SystemInit
bl _start
bx lr
.pool
.cantunwind
.fnend
.size Reset_Handler,.-Reset_Handler
/* Default Handler */
.section ".text"
.section .text.Default_Handler,"ax",%progbits
Default_Handler:
b .
.size Default_Handler, .-Default_Handler
/* Vector Table */
.section .isr_vector,"a",%progbits
.type __Vectors, %object
.size __Vectors, .-__Vectors
__Vectors:
.word _estack
.word Reset_Handler
.word NMI_Handler
.word HardFault_Handler
.word 0
.word 0
.word 0
.word 0
.word 0
.word 0
.word 0
.word SVC_Handler
.word 0
.word 0
.word PendSV_Handler
.word SysTick_Handler
/* External Interrupts */
.word POWER_CLOCK_IRQHandler
.word RADIO_IRQHandler
.word UARTE0_UART0_IRQHandler
.word SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQHandler
.word SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQHandler
.word NFCT_IRQHandler
.word GPIOTE_IRQHandler
.word SAADC_IRQHandler
.word TIMER0_IRQHandler
.word TIMER1_IRQHandler
.word TIMER2_IRQHandler
.word RTC0_IRQHandler
.word TEMP_IRQHandler
.word RNG_IRQHandler
.word ECB_IRQHandler
.word CCM_AAR_IRQHandler
.word WDT_IRQHandler
.word RTC1_IRQHandler
.word QDEC_IRQHandler
.word COMP_LPCOMP_IRQHandler
.word SWI0_EGU0_IRQHandler
.word SWI1_EGU1_IRQHandler
.word SWI2_EGU2_IRQHandler
.word SWI3_EGU3_IRQHandler
.word SWI4_EGU4_IRQHandler
.word SWI5_EGU5_IRQHandler
.word TIMER3_IRQHandler
.word TIMER4_IRQHandler
.word PWM0_IRQHandler
.word PDM_IRQHandler
.word 0
.word 0
.word MWU_IRQHandler
.word PWM1_IRQHandler
.word PWM2_IRQHandler
.word SPIM2_SPIS2_SPI2_IRQHandler
.word RTC2_IRQHandler
.word I2S_IRQHandler
/* Dummy Exception Handlers */
.weak NMI_Handler
.type NMI_Handler, %function
NMI_Handler:
B .
.size NMI_Handler, . - NMI_Handler
.weak HardFault_Handler
.type HardFault_Handler, %function
HardFault_Handler:
B .
.size HardFault_Handler, . - HardFault_Handler
.weak MemoryManagement_Handler
.type MemoryManagement_Handler, %function
MemoryManagement_Handler:
B .
.size MemoryManagement_Handler, . - MemoryManagement_Handler
.weak BusFault_Handler
.type BusFault_Handler, %function
BusFault_Handler:
B .
.size BusFault_Handler, . - BusFault_Handler
.weak UsageFault_Handler
.type UsageFault_Handler, %function
UsageFault_Handler:
B .
.size UsageFault_Handler, . - UsageFault_Handler
.weak SVC_Handler
.type SVC_Handler, %function
SVC_Handler:
B .
.size SVC_Handler, . - SVC_Handler
.weak PendSV_Handler
.type PendSV_Handler, %function
PendSV_Handler:
B .
.size PendSV_Handler, . - PendSV_Handler
.weak SysTick_Handler
.type SysTick_Handler, %function
SysTick_Handler:
B .
.size SysTick_Handler, . - SysTick_Handler
/* IRQ Handlers */
.macro IRQ handler
.weak \handler
.set \handler, Default_Handler
.endm
IRQ POWER_CLOCK_IRQHandler
IRQ RADIO_IRQHandler
IRQ UARTE0_UART0_IRQHandler
IRQ SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQHandler
IRQ SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQHandler
IRQ NFCT_IRQHandler
IRQ GPIOTE_IRQHandler
IRQ SAADC_IRQHandler
IRQ TIMER0_IRQHandler
IRQ TIMER1_IRQHandler
IRQ TIMER2_IRQHandler
IRQ RTC0_IRQHandler
IRQ TEMP_IRQHandler
IRQ RNG_IRQHandler
IRQ ECB_IRQHandler
IRQ CCM_AAR_IRQHandler
IRQ WDT_IRQHandler
IRQ RTC1_IRQHandler
IRQ QDEC_IRQHandler
IRQ COMP_LPCOMP_IRQHandler
IRQ SWI0_EGU0_IRQHandler
IRQ SWI1_EGU1_IRQHandler
IRQ SWI2_EGU2_IRQHandler
IRQ SWI3_EGU3_IRQHandler
IRQ SWI4_EGU4_IRQHandler
IRQ SWI5_EGU5_IRQHandler
IRQ TIMER3_IRQHandler
IRQ TIMER4_IRQHandler
IRQ PWM0_IRQHandler
IRQ PDM_IRQHandler
IRQ MWU_IRQHandler
IRQ PWM1_IRQHandler
IRQ PWM2_IRQHandler
IRQ SPIM2_SPIS2_SPI2_IRQHandler
IRQ RTC2_IRQHandler
IRQ I2S_IRQHandler
.end