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- .syntax unified
- .global Reset_Handler
- #ifdef INITIALIZE_USER_SECTIONS
- .global InitializeUserMemorySections
- #endif
- .extern _vectors
- .extern nRFInitialize
- .global afterInitialize
- .section .init, "ax"
- .thumb_func
- .equ VTOR_REG, 0xE000ED08
- .equ FPU_CPACR_REG, 0xE000ED88
- #ifndef STACK_INIT_VAL
- #define STACK_INIT_VAL __RAM1_segment_end__
- #endif
- Reset_Handler:
-
- b nRFInitialize
- .thumb_func
- afterInitialize:
-
- #ifndef NO_STACK_INIT
-
- ldr r0, =STACK_INIT_VAL
- ldr r1, =0x7
- bics r0, r1
- mov sp, r0
- #endif
- #ifndef NO_SYSTEM_INIT
-
- ldr r0, =SystemInit
- blx r0
- #endif
- #ifdef MEMORY_INIT
- ldr r0, =MemoryInit
- blx r0
- #endif
- #ifdef VECTORS_IN_RAM
-
- ldr r0, =__vectors_start__
- ldr r1, =__vectors_end__
- ldr r2, =__vectors_ram_start__
- 1:
- cmp r0, r1
- beq 2f
- ldr r3, [r0]
- str r3, [r2]
- adds r0, r0, #4
- adds r2, r2, #4
- b 1b
- 2:
- #endif
- #ifndef NO_VTOR_CONFIG
-
- ldr r0, =VTOR_REG
- #ifdef VECTORS_IN_RAM
- ldr r1, =_vectors_ram
- #else
- ldr r1, =_vectors
- #endif
- str r1, [r0]
- #endif
- #if (defined(__ARM_ARCH_FPV4_SP_D16__) || defined(__ARM_ARCH_FPV5_D16__)) && !defined(NO_FPU_ENABLE)
-
- ldr r0, =FPU_CPACR_REG
- ldr r1, [r0]
- orr r1, r1, #(0xF << 20)
- str r1, [r0]
- dsb
- isb
- #endif
-
- b _start
- #ifdef INITIALIZE_USER_SECTIONS
- .thumb_func
- InitializeUserMemorySections:
- ldr r0, =__start_nrf_sections
- ldr r1, =__start_nrf_sections_run
- ldr r2, =__end_nrf_sections_run
- cmp r0, r1
- beq 2f
- subs r2, r2, r1
- beq 2f
- 1:
- ldrb r3, [r0]
- adds r0, r0, #1
- strb r3, [r1]
- adds r1, r1, #1
- subs r2, r2, #1
- bne 1b
- 2:
- bx lr
- #endif
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