Subversion Repositories fwrisc

# See LICENSE for license details.

#*****************************************************************************

# mcsr.S

#-----------------------------------------------------------------------------

#

# Test various M-mode CSRs.

#

#include "riscv_test.h"

#include "compliance_test.h"

#include "compliance_io.h"

#include "aw_test_macros.h"

#RVTEST_RV64S

RVTEST_RV64M

RVTEST_CODE_BEGIN

  # Check that mcpuid reports the correct XLEN

#if __riscv_xlen == 64

  TEST_CASE(2, a0, 0x2, csrr a0, misa; srl a0, a0, 62)

#else

  TEST_CASE(2, a0, 0x1, csrr a0, misa; srl a0, a0, 30)

#endif

  # Check that mhartid reports 0

  TEST_CASE(3, a0, 0x0, csrr a0, mhartid)

  # Check that reading the following CSRs doesn't cause an exception

  csrr a0, mimpid

  csrr a0, marchid

  csrr a0, mvendorid

  # Check that writing hte following CSRs doesn't cause an exception

  li t0, 0

  csrs mtvec, t0

  csrs mepc, t0

  TEST_PASSFAIL

RVTEST_CODE_END

  .data

RV_COMPLIANCE_DATA_BEGIN

test_res:

    .fill 40, 4, -1

RV_COMPLIANCE_DATA_END