mirror of https://github.com/YosysHQ/picorv32.git
93 lines
2.1 KiB
ArmAsm
93 lines
2.1 KiB
ArmAsm
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# See LICENSE for license details.
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#*****************************************************************************
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# lbu.S
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#-----------------------------------------------------------------------------
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#
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# Test lbu 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, lbu, 0x000000ff, 0, tdat );
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TEST_LD_OP( 3, lbu, 0x00000000, 1, tdat );
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TEST_LD_OP( 4, lbu, 0x000000f0, 2, tdat );
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TEST_LD_OP( 5, lbu, 0x0000000f, 3, tdat );
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# Test with negative offset
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TEST_LD_OP( 6, lbu, 0x000000ff, -3, tdat4 );
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TEST_LD_OP( 7, lbu, 0x00000000, -2, tdat4 );
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TEST_LD_OP( 8, lbu, 0x000000f0, -1, tdat4 );
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TEST_LD_OP( 9, lbu, 0x0000000f, 0, tdat4 );
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# Test with a negative base
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TEST_CASE( 10, x3, 0x000000ff, \
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la x1, tdat; \
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addi x1, x1, -32; \
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lbu 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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lbu 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, lbu, 0x000000f0, 1, tdat2 );
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TEST_LD_DEST_BYPASS( 13, 1, lbu, 0x0000000f, 1, tdat3 );
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TEST_LD_DEST_BYPASS( 14, 2, lbu, 0x00000000, 1, tdat1 );
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TEST_LD_SRC1_BYPASS( 15, 0, lbu, 0x000000f0, 1, tdat2 );
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TEST_LD_SRC1_BYPASS( 16, 1, lbu, 0x0000000f, 1, tdat3 );
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TEST_LD_SRC1_BYPASS( 17, 2, lbu, 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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lbu 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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lbu 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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