esp-idf/components/ulp/ulp_riscv/start.S

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ArmAsm
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.section .text
.global irq_vector
.global reset_vector
/* The reset vector, jumps to startup code */
reset_vector:
j __start
/* Interrupt handler */
.balign 16
irq_vector:
ret
__start:
/* setup the stack pointer */
la sp, __stack_top
call ulp_riscv_rescue_from_monitor
call main
call ulp_riscv_shutdown
loop:
j loop