isa/rv32ui/jalr.S

   1 #*****************************************************************************
   2 # jalr.S
   3 #-----------------------------------------------------------------------------
   4 #
   5 # Test jalr instruction.
   6 #
   7
   8 #include "riscv_test.h"
   9 #include "test_macros.h"
  10
  11 RVTEST_RV32U
  12 RVTEST_CODE_BEGIN
  13
  14   #-------------------------------------------------------------
  15   # Test 2: Basic test
  16   #-------------------------------------------------------------
  17
  18 test_2:
  19   li  x28, 2
  20   li  x31, 0
  21   la  x2, target_2
  22
  23 linkaddr_2:
  24   jalr x19, x2, 0
  25   nop
  26   nop
  27
  28   j fail
  29
  30 target_2:
  31   la  x1, linkaddr_2
  32   addi x1, x1, 4
  33   bne x1, x19, fail
  34
  35   #-------------------------------------------------------------
  36   # Test 3: Check r0 target and that r31 is not modified
  37   #-------------------------------------------------------------
  38
  39 test_3:
  40   li  x28, 3
  41   li  x31, 0
  42   la  x3, target_3
  43
  44 linkaddr_3:
  45   jalr x0, x3, 0
  46   nop
  47
  48   j fail
  49
  50 target_3:
  51   bne x31, x0, fail
  52
  53   #-------------------------------------------------------------
  54   # Bypassing tests
  55   #-------------------------------------------------------------
  56
  57   TEST_JALR_SRC1_BYPASS( 4, 0, jalr );
  58   TEST_JALR_SRC1_BYPASS( 5, 1, jalr );
  59   TEST_JALR_SRC1_BYPASS( 6, 2, jalr );
  60
  61   #-------------------------------------------------------------
  62   # Test delay slot instructions not executed nor bypassed
  63   #-------------------------------------------------------------
  64
  65   TEST_CASE( 7, x1, 4, \
  66     li  x1, 1; \
  67     la  x2, 1f;
  68     jalr x19, x2, -4; \
  69     addi x1, x1, 1; \
  70     addi x1, x1, 1; \
  71     addi x1, x1, 1; \
  72     addi x1, x1, 1; \
  73 1:  addi x1, x1, 1; \
  74     addi x1, x1, 1; \
  75   )
  76
  77   TEST_PASSFAIL
  78
  79 RVTEST_CODE_END
  80
  81   .data
  82 RVTEST_DATA_BEGIN
  83
  84   TEST_DATA
  85
  86 RVTEST_DATA_END