forked from FPGALover/RISCV_picorv32_fpga
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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# lw.S
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#-----------------------------------------------------------------------------
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#
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# Test lw 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, lw, 0x00ff00ff, 0, tdat );
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TEST_LD_OP( 3, lw, 0xff00ff00, 4, tdat );
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TEST_LD_OP( 4, lw, 0x0ff00ff0, 8, tdat );
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TEST_LD_OP( 5, lw, 0xf00ff00f, 12, tdat );
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# Test with negative offset
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TEST_LD_OP( 6, lw, 0x00ff00ff, -12, tdat4 );
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TEST_LD_OP( 7, lw, 0xff00ff00, -8, tdat4 );
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TEST_LD_OP( 8, lw, 0x0ff00ff0, -4, tdat4 );
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TEST_LD_OP( 9, lw, 0xf00ff00f, 0, tdat4 );
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# Test with a negative base
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TEST_CASE( 10, x3, 0x00ff00ff, \
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la x1, tdat; \
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addi x1, x1, -32; \
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lw x3, 32(x1); \
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)
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# Test with unaligned base
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TEST_CASE( 11, x3, 0xff00ff00, \
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la x1, tdat; \
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addi x1, x1, -3; \
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lw 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, lw, 0x0ff00ff0, 4, tdat2 );
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TEST_LD_DEST_BYPASS( 13, 1, lw, 0xf00ff00f, 4, tdat3 );
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TEST_LD_DEST_BYPASS( 14, 2, lw, 0xff00ff00, 4, tdat1 );
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TEST_LD_SRC1_BYPASS( 15, 0, lw, 0x0ff00ff0, 4, tdat2 );
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TEST_LD_SRC1_BYPASS( 16, 1, lw, 0xf00ff00f, 4, tdat3 );
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TEST_LD_SRC1_BYPASS( 17, 2, lw, 0xff00ff00, 4, 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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lw 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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lw 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: .word 0x00ff00ff
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tdat2: .word 0xff00ff00
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tdat3: .word 0x0ff00ff0
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tdat4: .word 0xf00ff00f
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RVTEST_DATA_END
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