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author | Yann Herklotz <git@yannherklotz.com> | 2022-11-24 22:27:15 +0000 |
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committer | Yann Herklotz <git@yannherklotz.com> | 2022-11-24 22:27:15 +0000 |
commit | cfe60025ab06c73c44ce6b962a258668b3a90431 (patch) | |
tree | 292d7b2b01a6e0f2ee31b9d133312723980235c1 /riscv/picorv32/tests/lw.S | |
parent | c0056cea555efe0d6775e3b28ffa5a4a91293097 (diff) | |
download | butterstick-cfe60025ab06c73c44ce6b962a258668b3a90431.tar.gz butterstick-cfe60025ab06c73c44ce6b962a258668b3a90431.zip |
Move all files
Diffstat (limited to 'riscv/picorv32/tests/lw.S')
-rw-r--r-- | riscv/picorv32/tests/lw.S | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/riscv/picorv32/tests/lw.S b/riscv/picorv32/tests/lw.S new file mode 100644 index 0000000..4a07838 --- /dev/null +++ b/riscv/picorv32/tests/lw.S @@ -0,0 +1,92 @@ +# See LICENSE for license details. + +#***************************************************************************** +# lw.S +#----------------------------------------------------------------------------- +# +# Test lw instruction. +# + +#include "riscv_test.h" +#include "test_macros.h" + +RVTEST_RV32U +RVTEST_CODE_BEGIN + + #------------------------------------------------------------- + # Basic tests + #------------------------------------------------------------- + + TEST_LD_OP( 2, lw, 0x00ff00ff, 0, tdat ); + TEST_LD_OP( 3, lw, 0xff00ff00, 4, tdat ); + TEST_LD_OP( 4, lw, 0x0ff00ff0, 8, tdat ); + TEST_LD_OP( 5, lw, 0xf00ff00f, 12, tdat ); + + # Test with negative offset + + TEST_LD_OP( 6, lw, 0x00ff00ff, -12, tdat4 ); + TEST_LD_OP( 7, lw, 0xff00ff00, -8, tdat4 ); + TEST_LD_OP( 8, lw, 0x0ff00ff0, -4, tdat4 ); + TEST_LD_OP( 9, lw, 0xf00ff00f, 0, tdat4 ); + + # Test with a negative base + + TEST_CASE( 10, x3, 0x00ff00ff, \ + la x1, tdat; \ + addi x1, x1, -32; \ + lw x3, 32(x1); \ + ) + + # Test with unaligned base + + TEST_CASE( 11, x3, 0xff00ff00, \ + la x1, tdat; \ + addi x1, x1, -3; \ + lw x3, 7(x1); \ + ) + + #------------------------------------------------------------- + # Bypassing tests + #------------------------------------------------------------- + + TEST_LD_DEST_BYPASS( 12, 0, lw, 0x0ff00ff0, 4, tdat2 ); + TEST_LD_DEST_BYPASS( 13, 1, lw, 0xf00ff00f, 4, tdat3 ); + TEST_LD_DEST_BYPASS( 14, 2, lw, 0xff00ff00, 4, tdat1 ); + + TEST_LD_SRC1_BYPASS( 15, 0, lw, 0x0ff00ff0, 4, tdat2 ); + TEST_LD_SRC1_BYPASS( 16, 1, lw, 0xf00ff00f, 4, tdat3 ); + TEST_LD_SRC1_BYPASS( 17, 2, lw, 0xff00ff00, 4, tdat1 ); + + #------------------------------------------------------------- + # Test write-after-write hazard + #------------------------------------------------------------- + + TEST_CASE( 18, x2, 2, \ + la x3, tdat; \ + lw x2, 0(x3); \ + li x2, 2; \ + ) + + TEST_CASE( 19, x2, 2, \ + la x3, tdat; \ + lw x2, 0(x3); \ + nop; \ + li x2, 2; \ + ) + + TEST_PASSFAIL + +RVTEST_CODE_END + + .data +RVTEST_DATA_BEGIN + + TEST_DATA + +tdat: +tdat1: .word 0x00ff00ff +tdat2: .word 0xff00ff00 +tdat3: .word 0x0ff00ff0 +tdat4: .word 0xf00ff00f + +RVTEST_DATA_END |