host-aprom/NUC123/startup_NUC123.s

233 lines
6.0 KiB
ArmAsm
Raw Normal View History

2024-06-29 20:17:34 +00:00
.syntax unified
.arch armv8 - m.base
.section .stack
.align 3
#ifndef Stack_Size
.equ Stack_Size, 0x00000400
#endif
.global __StackTop
.global __StackLimit
__StackLimit:
.space Stack_Size
.size __StackLimit, . - __StackLimit
__StackTop:
.size __StackTop, . - __StackTop
.section .heap
.align 3
#ifndef Heap_Size
.equ Heap_Size, 0x00000100
#endif
.global __HeapBase
.global __HeapLimit
__HeapBase:
.if Heap_Size
.space Heap_Size
.endif
.size __HeapBase, . - __HeapBase
__HeapLimit:
.size __HeapLimit, . - __HeapLimit
.section .vectors
.align 2
.global __Vectors
__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 */
/* External interrupts */
.long BOD_IRQHandler
.long WDT_IRQHandler
.long EINT0_IRQHandler
.long EINT1_IRQHandler
.long GPAB_IRQHandler
.long GPCDF_IRQHandler
.long PWMA_IRQHandler
.long Default_Handler
.long TMR0_IRQHandler
.long TMR1_IRQHandler
.long TMR2_IRQHandler
.long TMR3_IRQHandler
.long UART0_IRQHandler
.long UART1_IRQHandler
.long SPI0_IRQHandler
.long SPI1_IRQHandler
.long SPI2_IRQHandler
.long SPI3_IRQHandler
.long I2C0_IRQHandler
.long I2C1_IRQHandler
.long CAN0_IRQHandler
.long CAN1_IRQHandler
.long SC012_IRQHandler
.long USBD_IRQHandler
.long PS2_IRQHandler
.long ACMP_IRQHandler
.long PDMA_IRQHandler
.long I2S_IRQHandler
.long PWRWU_IRQHandler
.long ADC_IRQHandler
.long Default_Handler
.long RTC_IRQHandler
.size __Vectors, . - __Vectors
.text
.thumb
.thumb_func
.align 2
.global Reset_Handler
.type Reset_Handler, % function
Reset_Handler:
/* Single section scheme.
*
* The ranges of copy from/to are specified by following symbols
* __etext: LMA of start of the section to copy from. Usually end of text
* __data_start__: VMA of start of the section to copy to
* __data_end__: VMA of end of the section to copy to
*
* All addresses must be aligned to 4 bytes boundary.
*/
ldr r1, = __etext
ldr r2, = __data_start__
ldr r3, = __data_end__
subs r3, r2
ble .L_loop1_done
.L_loop1:
subs r3, #4
ldr r0, [r1, r3]
str r0, [r2, r3]
bgt .L_loop1
.L_loop1_done:
/* Single BSS section scheme.
*
* The BSS section is specified by following symbols
* __bss_start__: start of the BSS section.
* __bss_end__: end of the BSS section.
*
* Both addresses must be aligned to 4 bytes boundary.
*/
ldr r1, = __bss_start__
ldr r2, = __bss_end__
movs r0, 0
subs r2, r1
ble .L_loop3_done
.L_loop3:
subs r2, #4
str r0, [r1, r2]
bgt .L_loop3
.L_loop3_done:
/* There's no SystemInit for NUC123, so no point making a pointless call */
// bl SystemInit
#ifndef __ENTRY
#define __ENTRY _entry
#endif
bl __ENTRY
.pool
.size Reset_Handler, . - Reset_Handler
.align 1
.thumb_func
.weak Default_Handler
.type Default_Handler, % function
Default_Handler:
b .
.size Default_Handler, . - Default_Handler
/* Macro to define default handlers. Default handler
* will be weak symbol and just dead loops. They can be
* overwritten by other handlers */
.macro def_irq_handler handler_name
.weak \handler_name
.set \handler_name, Default_Handler
.endm
def_irq_handler NMI_Handler
def_irq_handler HardFault_Handler
def_irq_handler SVC_Handler
def_irq_handler PendSV_Handler
def_irq_handler SysTick_Handler
def_irq_handler BOD_IRQHandler
def_irq_handler WDT_IRQHandler
def_irq_handler EINT0_IRQHandler
def_irq_handler EINT1_IRQHandler
def_irq_handler GPAB_IRQHandler
def_irq_handler GPCDF_IRQHandler
def_irq_handler PWMA_IRQHandler
def_irq_handler TMR0_IRQHandler
def_irq_handler TMR1_IRQHandler
def_irq_handler TMR2_IRQHandler
def_irq_handler TMR3_IRQHandler
def_irq_handler UART0_IRQHandler
def_irq_handler UART1_IRQHandler
def_irq_handler SPI0_IRQHandler
def_irq_handler SPI1_IRQHandler
def_irq_handler SPI2_IRQHandler
def_irq_handler SPI3_IRQHandler
def_irq_handler I2C0_IRQHandler
def_irq_handler I2C1_IRQHandler
def_irq_handler CAN0_IRQHandler
def_irq_handler CAN1_IRQHandler
def_irq_handler SC012_IRQHandler
def_irq_handler USBD_IRQHandler
def_irq_handler PS2_IRQHandler
def_irq_handler ACMP_IRQHandler
def_irq_handler PDMA_IRQHandler
def_irq_handler I2S_IRQHandler
def_irq_handler PWRWU_IRQHandler
def_irq_handler ADC_IRQHandler
def_irq_handler RTC_IRQHandler
/* ;int32_t SH_DoCommand(int32_t n32In_R0, int32_t n32In_R1, int32_t *pn32Out_R0) */
.align 2
.thumb_func
.type SH_DoCommand, % function
SH_DoCommand:
BKPT 0xAB /* ; Wait ICE or HardFault */
//LDR R3, = SH_Return
MOV R4, lr
BLX R3 /* ; Call SH_Return. The return value is in R0 */
BX R4 /* ; Return value = R0 */
.size SH_DoCommand, . - SH_DoCommand
.align 2
.thumb_func
.global __PC
.type __PC, % function
.end