isa/rv32si/shamt.S

   1 #*****************************************************************************
   2 # csr.S
   3 #-----------------------------------------------------------------------------
   4 #
   5 # Test CSRRx and CSRRxI instructions.
   6 #
   7
   8 #include "riscv_test.h"
   9 #include "test_macros.h"
  10
  11 RVTEST_RV32S
  12 RVTEST_CODE_BEGIN
  13
  14   la t0, evec
  15   csrw evec, t0
  16
  17   # Make sure slli with shamt[4] set is legal.
  18   TEST_CASE( 2, a0, 65536, li a0, 1; slli a0, a0, 16);
  19
  20   # Make sure slli with shamt[4] set is not legal.
  21   TEST_CASE( 3, x0, 1, slli a0, a0, 32);
  22
  23   TEST_PASSFAIL
  24
  25 evec:
  26   # Trapping on test 3 is good.
  27   # Note that since the test didn't complete, TESTNUM is smaller by 1.
  28   li t0, 2
  29   bne TESTNUM, t0, fail
  30
  31   # Make sure CAUSE indicates an illegal instructino.
  32   csrr t0, cause
  33   li t1, CAUSE_ILLEGAL_INSTRUCTION
  34   bne t0, t1, fail
  35   j pass
  36
  37 RVTEST_CODE_END
  38
  39   .data
  40 RVTEST_DATA_BEGIN
  41
  42   TEST_DATA
  43
  44 RVTEST_DATA_END