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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_NXP/TARGET_LPC11UXX/TOOLCHAIN_GCC_ARM/startup_LPC11xx.S@577:15494b56c2f3, 2015-07-01 (annotated)

Committer:
mbed_official
Date:
Wed Jul 01 08:15:11 2015 +0100
Revision:
577:15494b56c2f3
Synchronized with git revision 7766e75dd858812cd79aedb3080349715f55dd56



Full URL: https://github.com/mbedmicro/mbed/commit/7766e75dd858812cd79aedb3080349715f55dd56/



GCC asm updates

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 577:15494b56c2f3 1 /* File: startup_ARMCM0.S
mbed_official 577:15494b56c2f3 2 * Purpose: startup file for Cortex-M0 devices. Should use with
mbed_official 577:15494b56c2f3 3 * GCC for ARM Embedded Processors
mbed_official 577:15494b56c2f3 4 * Version: V1.2
mbed_official 577:15494b56c2f3 5 * Date: 15 Nov 2011
mbed_official 577:15494b56c2f3 6 *
mbed_official 577:15494b56c2f3 7 * Copyright (c) 2011, ARM Limited
mbed_official 577:15494b56c2f3 8 * All rights reserved.
mbed_official 577:15494b56c2f3 9 *
mbed_official 577:15494b56c2f3 10 * Redistribution and use in source and binary forms, with or without
mbed_official 577:15494b56c2f3 11 * modification, are permitted provided that the following conditions are met:
mbed_official 577:15494b56c2f3 12 * Redistributions of source code must retain the above copyright
mbed_official 577:15494b56c2f3 13 notice, this list of conditions and the following disclaimer.
mbed_official 577:15494b56c2f3 14 * Redistributions in binary form must reproduce the above copyright
mbed_official 577:15494b56c2f3 15 notice, this list of conditions and the following disclaimer in the
mbed_official 577:15494b56c2f3 16 documentation and/or other materials provided with the distribution.
mbed_official 577:15494b56c2f3 17 * Neither the name of the ARM Limited nor the
mbed_official 577:15494b56c2f3 18 names of its contributors may be used to endorse or promote products
mbed_official 577:15494b56c2f3 19 derived from this software without specific prior written permission.
mbed_official 577:15494b56c2f3 20 *
mbed_official 577:15494b56c2f3 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
mbed_official 577:15494b56c2f3 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
mbed_official 577:15494b56c2f3 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 577:15494b56c2f3 24 * DISCLAIMED. IN NO EVENT SHALL ARM LIMITED BE LIABLE FOR ANY
mbed_official 577:15494b56c2f3 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
mbed_official 577:15494b56c2f3 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
mbed_official 577:15494b56c2f3 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
mbed_official 577:15494b56c2f3 28 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
mbed_official 577:15494b56c2f3 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
mbed_official 577:15494b56c2f3 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 577:15494b56c2f3 31 */
mbed_official 577:15494b56c2f3 32 .syntax unified
mbed_official 577:15494b56c2f3 33 .arch armv6-m
mbed_official 577:15494b56c2f3 34
mbed_official 577:15494b56c2f3 35 /* Memory Model
mbed_official 577:15494b56c2f3 36 The HEAP starts at the end of the DATA section and grows upward.
mbed_official 577:15494b56c2f3 37
mbed_official 577:15494b56c2f3 38 The STACK starts at the end of the RAM and grows downward.
mbed_official 577:15494b56c2f3 39
mbed_official 577:15494b56c2f3 40 The HEAP and stack STACK are only checked at compile time:
mbed_official 577:15494b56c2f3 41 (DATA_SIZE + HEAP_SIZE + STACK_SIZE) < RAM_SIZE
mbed_official 577:15494b56c2f3 42
mbed_official 577:15494b56c2f3 43 This is just a check for the bare minimum for the Heap+Stack area before
mbed_official 577:15494b56c2f3 44 aborting compilation, it is not the run time limit:
mbed_official 577:15494b56c2f3 45 Heap_Size + Stack_Size = 0x80 + 0x80 = 0x100
mbed_official 577:15494b56c2f3 46 */
mbed_official 577:15494b56c2f3 47 .section .stack
mbed_official 577:15494b56c2f3 48 .align 3
mbed_official 577:15494b56c2f3 49 #ifdef __STACK_SIZE
mbed_official 577:15494b56c2f3 50 .equ Stack_Size, __STACK_SIZE
mbed_official 577:15494b56c2f3 51 #else
mbed_official 577:15494b56c2f3 52 .equ Stack_Size, 0x80
mbed_official 577:15494b56c2f3 53 #endif
mbed_official 577:15494b56c2f3 54 .globl __StackTop
mbed_official 577:15494b56c2f3 55 .globl __StackLimit
mbed_official 577:15494b56c2f3 56 __StackLimit:
mbed_official 577:15494b56c2f3 57 .space Stack_Size
mbed_official 577:15494b56c2f3 58 .size __StackLimit, . - __StackLimit
mbed_official 577:15494b56c2f3 59 __StackTop:
mbed_official 577:15494b56c2f3 60 .size __StackTop, . - __StackTop
mbed_official 577:15494b56c2f3 61
mbed_official 577:15494b56c2f3 62 .section .heap
mbed_official 577:15494b56c2f3 63 .align 3
mbed_official 577:15494b56c2f3 64 #ifdef __HEAP_SIZE
mbed_official 577:15494b56c2f3 65 .equ Heap_Size, __HEAP_SIZE
mbed_official 577:15494b56c2f3 66 #else
mbed_official 577:15494b56c2f3 67 .equ Heap_Size, 0x80
mbed_official 577:15494b56c2f3 68 #endif
mbed_official 577:15494b56c2f3 69 .globl __HeapBase
mbed_official 577:15494b56c2f3 70 .globl __HeapLimit
mbed_official 577:15494b56c2f3 71 __HeapBase:
mbed_official 577:15494b56c2f3 72 .space Heap_Size
mbed_official 577:15494b56c2f3 73 .size __HeapBase, . - __HeapBase
mbed_official 577:15494b56c2f3 74 __HeapLimit:
mbed_official 577:15494b56c2f3 75 .size __HeapLimit, . - __HeapLimit
mbed_official 577:15494b56c2f3 76
mbed_official 577:15494b56c2f3 77 .section .isr_vector
mbed_official 577:15494b56c2f3 78 .align 2
mbed_official 577:15494b56c2f3 79 .globl __isr_vector
mbed_official 577:15494b56c2f3 80 __isr_vector:
mbed_official 577:15494b56c2f3 81 .long __StackTop /* Top of Stack */
mbed_official 577:15494b56c2f3 82 .long Reset_Handler /* Reset Handler */
mbed_official 577:15494b56c2f3 83 .long NMI_Handler /* NMI Handler */
mbed_official 577:15494b56c2f3 84 .long HardFault_Handler /* Hard Fault Handler */
mbed_official 577:15494b56c2f3 85 .long 0 /* Reserved */
mbed_official 577:15494b56c2f3 86 .long 0 /* Reserved */
mbed_official 577:15494b56c2f3 87 .long 0 /* Reserved */
mbed_official 577:15494b56c2f3 88 .long 0 /* Reserved */
mbed_official 577:15494b56c2f3 89 .long 0 /* Reserved */
mbed_official 577:15494b56c2f3 90 .long 0 /* Reserved */
mbed_official 577:15494b56c2f3 91 .long 0 /* Reserved */
mbed_official 577:15494b56c2f3 92 .long SVC_Handler /* SVCall Handler */
mbed_official 577:15494b56c2f3 93 .long 0 /* Reserved */
mbed_official 577:15494b56c2f3 94 .long 0 /* Reserved */
mbed_official 577:15494b56c2f3 95 .long PendSV_Handler /* PendSV Handler */
mbed_official 577:15494b56c2f3 96 .long SysTick_Handler /* SysTick Handler */
mbed_official 577:15494b56c2f3 97
mbed_official 577:15494b56c2f3 98 /* LPC11xx interrupts */
mbed_official 577:15494b56c2f3 99 .long WAKEUP_IRQHandler /* 16 0 Wake-up on pin PIO0_0 */
mbed_official 577:15494b56c2f3 100 .long WAKEUP_IRQHandler /* 17 1 Wake-up on pin PIO0_1 */
mbed_official 577:15494b56c2f3 101 .long WAKEUP_IRQHandler /* 18 2 Wake-up on pin PIO0_2 */
mbed_official 577:15494b56c2f3 102 .long WAKEUP_IRQHandler /* 19 3 Wake-up on pin PIO0_3 */
mbed_official 577:15494b56c2f3 103 .long WAKEUP_IRQHandler /* 20 4 Wake-up on pin PIO0_4 */
mbed_official 577:15494b56c2f3 104 .long WAKEUP_IRQHandler /* 21 5 Wake-up on pin PIO0_5 */
mbed_official 577:15494b56c2f3 105 .long WAKEUP_IRQHandler /* 22 6 Wake-up on pin PIO0_6 */
mbed_official 577:15494b56c2f3 106 .long WAKEUP_IRQHandler /* 23 7 Wake-up on pin PIO0_7 */
mbed_official 577:15494b56c2f3 107 .long WAKEUP_IRQHandler /* 24 8 Wake-up on pin PIO0_8 */
mbed_official 577:15494b56c2f3 108 .long WAKEUP_IRQHandler /* 25 9 Wake-up on pin PIO0_9 */
mbed_official 577:15494b56c2f3 109 .long WAKEUP_IRQHandler /* 26 10 Wake-up on pin PIO0_10 */
mbed_official 577:15494b56c2f3 110 .long WAKEUP_IRQHandler /* 27 11 Wake-up on pin PIO0_11 */
mbed_official 577:15494b56c2f3 111 .long WAKEUP_IRQHandler /* 28 12 Wake-up on pin PIO1_0 */
mbed_official 577:15494b56c2f3 112 .long Default_Handler /* 29 13 */
mbed_official 577:15494b56c2f3 113 .long SSP1_IRQHandler /* 30 14 SSP1 */
mbed_official 577:15494b56c2f3 114 .long I2C_IRQHandler /* 31 15 I2C0 SI (state change) */
mbed_official 577:15494b56c2f3 115 .long TIMER16_0_IRQHandler /* 32 16 CT16B0 16 bit timer 0 */
mbed_official 577:15494b56c2f3 116 .long TIMER16_1_IRQHandler /* 33 17 CT16B1 16 bit timer 1 */
mbed_official 577:15494b56c2f3 117 .long TIMER32_0_IRQHandler /* 34 18 CT32B0 32 bit timer 0 */
mbed_official 577:15494b56c2f3 118 .long TIMER32_1_IRQHandler /* 35 19 CT32B1 32 bit timer 1 */
mbed_official 577:15494b56c2f3 119 .long SSP0_IRQHandler /* 36 20 SSP */
mbed_official 577:15494b56c2f3 120 .long UART_IRQHandler /* 37 21 UART */
mbed_official 577:15494b56c2f3 121 .long USB_IRQHandler /* 38 22 USB IRQ */
mbed_official 577:15494b56c2f3 122 .long USB_FIQHandler /* 39 23 USB FIQ */
mbed_official 577:15494b56c2f3 123 .long ADC_IRQHandler /* 40 24 ADC end of conversion */
mbed_official 577:15494b56c2f3 124 .long WDT_IRQHandler /* 41 25 Watchdog interrupt (WDINT) */
mbed_official 577:15494b56c2f3 125 .long BOD_IRQHandler /* 42 26 BOD Brown-out detect */
mbed_official 577:15494b56c2f3 126 .long Default_Handler /* 43 27 */
mbed_official 577:15494b56c2f3 127 .long PIOINT3_IRQHandler /* 44 28 PIO_3 GPIO interrupt status of port 3 */
mbed_official 577:15494b56c2f3 128 .long PIOINT2_IRQHandler /* 45 29 PIO_2 GPIO interrupt status of port 2 */
mbed_official 577:15494b56c2f3 129 .long PIOINT1_IRQHandler /* 46 30 PIO_1 GPIO interrupt status of port 1 */
mbed_official 577:15494b56c2f3 130 .long PIOINT0_IRQHandler /* 47 31 PIO_0 GPIO interrupt status of port 0 */
mbed_official 577:15494b56c2f3 131
mbed_official 577:15494b56c2f3 132 .size __isr_vector, . - __isr_vector
mbed_official 577:15494b56c2f3 133
mbed_official 577:15494b56c2f3 134 .section .text.Reset_Handler
mbed_official 577:15494b56c2f3 135 .thumb
mbed_official 577:15494b56c2f3 136 .thumb_func
mbed_official 577:15494b56c2f3 137 .align 2
mbed_official 577:15494b56c2f3 138 .globl Reset_Handler
mbed_official 577:15494b56c2f3 139 .type Reset_Handler, %function
mbed_official 577:15494b56c2f3 140 Reset_Handler:
mbed_official 577:15494b56c2f3 141 /* Loop to copy data from read only memory to RAM. The ranges
mbed_official 577:15494b56c2f3 142 * of copy from/to are specified by following symbols evaluated in
mbed_official 577:15494b56c2f3 143 * linker script.
mbed_official 577:15494b56c2f3 144 * __etext: End of code section, i.e., begin of data sections to copy from.
mbed_official 577:15494b56c2f3 145 * __data_start__/__data_end__: RAM address range that data should be
mbed_official 577:15494b56c2f3 146 * copied to. Both must be aligned to 4 bytes boundary. */
mbed_official 577:15494b56c2f3 147
mbed_official 577:15494b56c2f3 148 ldr r1, =__etext
mbed_official 577:15494b56c2f3 149 ldr r2, =__data_start__
mbed_official 577:15494b56c2f3 150 ldr r3, =__data_end__
mbed_official 577:15494b56c2f3 151
mbed_official 577:15494b56c2f3 152 subs r3, r2
mbed_official 577:15494b56c2f3 153 ble .Lflash_to_ram_loop_end
mbed_official 577:15494b56c2f3 154
mbed_official 577:15494b56c2f3 155 movs r4, 0
mbed_official 577:15494b56c2f3 156 .Lflash_to_ram_loop:
mbed_official 577:15494b56c2f3 157 ldr r0, [r1,r4]
mbed_official 577:15494b56c2f3 158 str r0, [r2,r4]
mbed_official 577:15494b56c2f3 159 adds r4, 4
mbed_official 577:15494b56c2f3 160 cmp r4, r3
mbed_official 577:15494b56c2f3 161 blt .Lflash_to_ram_loop
mbed_official 577:15494b56c2f3 162 .Lflash_to_ram_loop_end:
mbed_official 577:15494b56c2f3 163
mbed_official 577:15494b56c2f3 164 ldr r0, =SystemInit
mbed_official 577:15494b56c2f3 165 blx r0
mbed_official 577:15494b56c2f3 166 ldr r0, =_start
mbed_official 577:15494b56c2f3 167 bx r0
mbed_official 577:15494b56c2f3 168 .pool
mbed_official 577:15494b56c2f3 169 .size Reset_Handler, . - Reset_Handler
mbed_official 577:15494b56c2f3 170
mbed_official 577:15494b56c2f3 171 .text
mbed_official 577:15494b56c2f3 172 /* Macro to define default handlers. Default handler
mbed_official 577:15494b56c2f3 173 * will be weak symbol and just dead loops. They can be
mbed_official 577:15494b56c2f3 174 * overwritten by other handlers */
mbed_official 577:15494b56c2f3 175 .macro def_default_handler handler_name
mbed_official 577:15494b56c2f3 176 .align 1
mbed_official 577:15494b56c2f3 177 .thumb_func
mbed_official 577:15494b56c2f3 178 .weak \handler_name
mbed_official 577:15494b56c2f3 179 .type \handler_name, %function
mbed_official 577:15494b56c2f3 180 \handler_name :
mbed_official 577:15494b56c2f3 181 b .
mbed_official 577:15494b56c2f3 182 .size \handler_name, . - \handler_name
mbed_official 577:15494b56c2f3 183 .endm
mbed_official 577:15494b56c2f3 184
mbed_official 577:15494b56c2f3 185 def_default_handler NMI_Handler
mbed_official 577:15494b56c2f3 186 def_default_handler HardFault_Handler
mbed_official 577:15494b56c2f3 187 def_default_handler SVC_Handler
mbed_official 577:15494b56c2f3 188 def_default_handler PendSV_Handler
mbed_official 577:15494b56c2f3 189 def_default_handler SysTick_Handler
mbed_official 577:15494b56c2f3 190 def_default_handler Default_Handler
mbed_official 577:15494b56c2f3 191
mbed_official 577:15494b56c2f3 192 .macro def_irq_default_handler handler_name
mbed_official 577:15494b56c2f3 193 .weak \handler_name
mbed_official 577:15494b56c2f3 194 .set \handler_name, Default_Handler
mbed_official 577:15494b56c2f3 195 .endm
mbed_official 577:15494b56c2f3 196
mbed_official 577:15494b56c2f3 197 def_irq_default_handler WAKEUP_IRQHandler
mbed_official 577:15494b56c2f3 198 def_irq_default_handler SSP1_IRQHandler
mbed_official 577:15494b56c2f3 199 def_irq_default_handler I2C_IRQHandler
mbed_official 577:15494b56c2f3 200 def_irq_default_handler TIMER16_0_IRQHandler
mbed_official 577:15494b56c2f3 201 def_irq_default_handler TIMER16_1_IRQHandler
mbed_official 577:15494b56c2f3 202 def_irq_default_handler TIMER32_0_IRQHandler
mbed_official 577:15494b56c2f3 203 def_irq_default_handler TIMER32_1_IRQHandler
mbed_official 577:15494b56c2f3 204 def_irq_default_handler SSP0_IRQHandler
mbed_official 577:15494b56c2f3 205 def_irq_default_handler UART_IRQHandler
mbed_official 577:15494b56c2f3 206 def_irq_default_handler USB_IRQHandler
mbed_official 577:15494b56c2f3 207 def_irq_default_handler USB_FIQHandler
mbed_official 577:15494b56c2f3 208 def_irq_default_handler ADC_IRQHandler
mbed_official 577:15494b56c2f3 209 def_irq_default_handler WDT_IRQHandler
mbed_official 577:15494b56c2f3 210 def_irq_default_handler BOD_IRQHandler
mbed_official 577:15494b56c2f3 211 def_irq_default_handler PIOINT3_IRQHandler
mbed_official 577:15494b56c2f3 212 def_irq_default_handler PIOINT2_IRQHandler
mbed_official 577:15494b56c2f3 213 def_irq_default_handler PIOINT1_IRQHandler
mbed_official 577:15494b56c2f3 214 def_irq_default_handler PIOINT0_IRQHandler
mbed_official 577:15494b56c2f3 215 def_irq_default_handler DEF_IRQHandler
mbed_official 577:15494b56c2f3 216
mbed_official 577:15494b56c2f3 217 .end
mbed_official 577:15494b56c2f3 218