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# See LICENSE for license details.

#*****************************************************************************
# scall.S
#-----------------------------------------------------------------------------
#
# Test syscall trap.
#

#include "riscv_test.h"
#include "test_macros.h"

RVTEST_RV32M
RVTEST_CODE_BEGIN

#define sscratch mscratch
#define sstatus mstatus
#define scause mcause
#define sepc mepc
#define stvec_handler mtvec_handler

#undef CAUSE_SUPERVISOR_ECALL
#define CAUSE_SUPERVISOR_ECALL CAUSE_MACHINE_ECALL

  li TESTNUM, 2
  scall
  j fail

  j pass

  TEST_PASSFAIL

stvec_handler:
  li t1, CAUSE_SUPERVISOR_ECALL
  csrr t0, scause
  bne t0, t1, fail
  csrr t0, sepc
  addi t0, t0, 8
  csrw sepc, t0
  sret

RVTEST_CODE_END

  .data
RVTEST_DATA_BEGIN

  TEST_DATA

RVTEST_DATA_END