isa/rv32si/shamt.S

   1 # See LICENSE for license details.
   2
   3 #*****************************************************************************
   4 # csr.S
   5 #-----------------------------------------------------------------------------
   6 #
   7 # Test CSRRx and CSRRxI instructions.
   8 #
   9
  10 #include "riscv_test.h"
  11 #include "test_macros.h"
  12
  13 RVTEST_RV32S
  14 RVTEST_CODE_BEGIN
  15
  16   la t0, stvec
  17   csrw stvec, t0
  18
  19   # Make sure slli with shamt[4] set is legal.
  20   TEST_CASE( 2, a0, 65536, li a0, 1; slli a0, a0, 16);
  21
  22   # Make sure slli with shamt[5] set is not legal.
  23   TEST_CASE( 3, x0, 1, slli a0, a0, 32);
  24
  25   TEST_PASSFAIL
  26
  27 stvec:
  28   # Trapping on test 3 is good.
  29   # Note that since the test didn't complete, TESTNUM is smaller by 1.
  30   li t0, 2
  31   bne TESTNUM, t0, fail
  32
  33   # Make sure CAUSE indicates an illegal instructino.
  34   csrr t0, scause
  35   li t1, CAUSE_ILLEGAL_INSTRUCTION
  36   bne t0, t1, fail
  37   j pass
  38
  39 RVTEST_CODE_END
  40
  41   .data
  42 RVTEST_DATA_BEGIN
  43
  44   TEST_DATA
  45
  46 RVTEST_DATA_END