tests/tcg/nios2/intr.S

   1 /*
   2  * Minimal Nios2 system boot code -- exit on interrupt.
   3  *
   4  * Copyright Linaro Ltd 2022
   5  * SPDX-License-Identifier: GPL-2.0-or-later
   6  */
   7
   8 #include "semicall.h"
   9
  10         .section .text.intr, "ax"
  11         .global _interrupt
  12         .type   _interrupt, @function
  13
  14 _interrupt:
  15         rdctl   r5, exception           /* extract exception.CAUSE */
  16         srli    r5, r5, 2
  17         movi    r4, HOSTED_EXIT
  18         semihosting_call
  19
  20         .size   _interrupt, . - _interrupt
  21
  22         .text
  23         .global _fast_tlb_miss
  24         .type   _fast_tlb_miss, @function
  25
  26 _fast_tlb_miss:
  27         movi    r5, 32
  28         movi    r4, HOSTED_EXIT
  29         semihosting_call
  30
  31         .size   _fast_tlb_miss, . - _fast_tlb_miss