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trap_gcc.S 322 B

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  1. #include "cpuport.h"
  2. .globl rt_hw_do_after_save_above
  3. .type rt_hw_do_after_save_above,@function
  4. rt_hw_do_after_save_above:
  5. addi sp, sp, -4
  6. STORE ra, 0 * REGBYTES(sp)
  7. csrr a0, mcause
  8. csrr a1, mepc
  9. mv a2, sp
  10. call handle_trap
  11. LOAD ra, 0 * REGBYTES(sp)
  12. addi sp, sp, 4
  13. ret