isa/rv32ui/lhu.S

   1 #*****************************************************************************
   2 # lhu.S
   3 #-----------------------------------------------------------------------------
   4 #
   5 # Test lhu instruction.
   6 #
   7
   8 #include "riscv_test.h"
   9 #include "test_macros.h"
  10
  11 RVTEST_RV32U
  12 RVTEST_CODE_BEGIN
  13
  14   #-------------------------------------------------------------
  15   # Basic tests
  16   #-------------------------------------------------------------
  17
  18   TEST_LD_OP( 2, lhu, 0x000000ff, 0,  tdat );
  19   TEST_LD_OP( 3, lhu, 0x0000ff00, 2,  tdat );
  20   TEST_LD_OP( 4, lhu, 0x00000ff0, 4,  tdat );
  21   TEST_LD_OP( 5, lhu, 0x0000f00f, 6, tdat );
  22
  23   # Test with negative offset
  24
  25   TEST_LD_OP( 6, lhu, 0x000000ff, -6,  tdat4 );
  26   TEST_LD_OP( 7, lhu, 0x0000ff00, -4,  tdat4 );
  27   TEST_LD_OP( 8, lhu, 0x00000ff0, -2,  tdat4 );
  28   TEST_LD_OP( 9, lhu, 0x0000f00f,  0, tdat4 );
  29
  30   # Test with a negative base
  31
  32   TEST_CASE( 10, x3, 0x000000ff, \
  33     la  x1, tdat; \
  34     addi x1, x1, -32; \
  35     lhu x3, 32(x1); \
  36   )
  37
  38   # Test with unaligned base
  39
  40   TEST_CASE( 11, x3, 0x0000ff00, \
  41     la  x1, tdat; \
  42     addi x1, x1, -5; \
  43     lhu x3, 7(x1); \
  44   )
  45
  46   #-------------------------------------------------------------
  47   # Bypassing tests
  48   #-------------------------------------------------------------
  49
  50   TEST_LD_DEST_BYPASS( 12, 0, lhu, 0x00000ff0, 2, tdat2 );
  51   TEST_LD_DEST_BYPASS( 13, 1, lhu, 0x0000f00f, 2, tdat3 );
  52   TEST_LD_DEST_BYPASS( 14, 2, lhu, 0x0000ff00, 2, tdat1 );
  53
  54   TEST_LD_SRC1_BYPASS( 15, 0, lhu, 0x00000ff0, 2, tdat2 );
  55   TEST_LD_SRC1_BYPASS( 16, 1, lhu, 0x0000f00f, 2, tdat3 );
  56   TEST_LD_SRC1_BYPASS( 17, 2, lhu, 0x0000ff00, 2, tdat1 );
  57
  58   #-------------------------------------------------------------
  59   # Test write-after-write hazard
  60   #-------------------------------------------------------------
  61
  62   TEST_CASE( 18, x2, 2, \
  63     la  x3, tdat; \
  64     lhu  x2, 0(x3); \
  65     li  x2, 2; \
  66   )
  67
  68   TEST_CASE( 19, x2, 2, \
  69     la  x3, tdat; \
  70     lhu  x2, 0(x3); \
  71     nop; \
  72     li  x2, 2; \
  73   )
  74
  75   TEST_PASSFAIL
  76
  77 RVTEST_CODE_END
  78
  79   .data
  80 RVTEST_DATA_BEGIN
  81
  82   TEST_DATA
  83
  84 tdat:
  85 tdat1:  .half 0x00ff
  86 tdat2:  .half 0xff00
  87 tdat3:  .half 0x0ff0
  88 tdat4:  .half 0xf00f
  89
  90 RVTEST_DATA_END