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[/] [potato/] [trunk/] [riscv-tests/] [lb.S] - Blame information for rev 21

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1 6 skordal
# See LICENSE for license details.
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#*****************************************************************************
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# lb.S
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#-----------------------------------------------------------------------------
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#
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# Test lb instruction.
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#
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#include "riscv_test.h"
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#include "test_macros.h"
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RVTEST_RV32U
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RVTEST_CODE_BEGIN
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  #-------------------------------------------------------------
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  # Basic tests
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  #-------------------------------------------------------------
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  TEST_LD_OP( 2, lb, 0xffffffff, 0,  tdat );
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  TEST_LD_OP( 3, lb, 0x00000000, 1,  tdat );
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  TEST_LD_OP( 4, lb, 0xfffffff0, 2,  tdat );
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  TEST_LD_OP( 5, lb, 0x0000000f, 3, tdat );
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  # Test with negative offset
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  TEST_LD_OP( 6, lb, 0xffffffff, -3, tdat4 );
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  TEST_LD_OP( 7, lb, 0x00000000, -2,  tdat4 );
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  TEST_LD_OP( 8, lb, 0xfffffff0, -1,  tdat4 );
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  TEST_LD_OP( 9, lb, 0x0000000f, 0,   tdat4 );
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  # Test with a negative base
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  TEST_CASE( 10, x3, 0xffffffff, \
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    la  x1, tdat; \
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    addi x1, x1, -32; \
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    lb x3, 32(x1); \
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  )
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  # Test with unaligned base
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  TEST_CASE( 11, x3, 0x00000000, \
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    la  x1, tdat; \
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    addi x1, x1, -6; \
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    lb x3, 7(x1); \
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  )
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  #-------------------------------------------------------------
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  # Bypassing tests
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  #-------------------------------------------------------------
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  TEST_LD_DEST_BYPASS( 12, 0, lb, 0xfffffff0, 1, tdat2 );
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  TEST_LD_DEST_BYPASS( 13, 1, lb, 0x0000000f, 1, tdat3 );
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  TEST_LD_DEST_BYPASS( 14, 2, lb, 0x00000000, 1, tdat1 );
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  TEST_LD_SRC1_BYPASS( 15, 0, lb, 0xfffffff0, 1, tdat2 );
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  TEST_LD_SRC1_BYPASS( 16, 1, lb, 0x0000000f, 1, tdat3 );
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  TEST_LD_SRC1_BYPASS( 17, 2, lb, 0x00000000, 1, tdat1 );
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  #-------------------------------------------------------------
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  # Test write-after-write hazard
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  #-------------------------------------------------------------
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  TEST_CASE( 18, x2, 2, \
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    la  x3, tdat; \
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    lb  x2, 0(x3); \
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    li  x2, 2; \
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  )
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  TEST_CASE( 19, x2, 2, \
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    la  x3, tdat; \
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    lb  x2, 0(x3); \
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    nop; \
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    li  x2, 2; \
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  )
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  TEST_PASSFAIL
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RVTEST_CODE_END
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  .data
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RVTEST_DATA_BEGIN
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  TEST_DATA
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tdat:
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tdat1:  .byte 0xff
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tdat2:  .byte 0x00
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tdat3:  .byte 0xf0
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tdat4:  .byte 0x0f
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RVTEST_DATA_END

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