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# See LICENSE for license details.
#*****************************************************************************
# sh.S
#-----------------------------------------------------------------------------
#
# Test sh instruction.
#
#include "riscv_test.h"
#include "test_macros.h"
RVTEST_RV32U
RVTEST_CODE_BEGIN
#-------------------------------------------------------------
# Basic tests
#-------------------------------------------------------------
TEST_ST_OP( 2, lh, sh, 0x000000aa, 0, tdat );
TEST_ST_OP( 3, lh, sh, 0xffffaa00, 2, tdat );
TEST_ST_OP( 4, lw, sh, 0xbeef0aa0, 4, tdat );
TEST_ST_OP( 5, lh, sh, 0xffffa00a, 6, tdat );
# Test with negative offset
TEST_ST_OP( 6, lh, sh, 0x000000aa, -6, tdat8 );
TEST_ST_OP( 7, lh, sh, 0xffffaa00, -4, tdat8 );
TEST_ST_OP( 8, lh, sh, 0x00000aa0, -2, tdat8 );
TEST_ST_OP( 9, lh, sh, 0xffffa00a, 0, tdat8 );
# Test with a negative base
TEST_CASE( 10, x3, 0x5678, \
la x1, tdat9; \
li x2, 0x12345678; \
addi x4, x1, -32; \
sh x2, 32(x4); \
lh x3, 0(x1); \
)
# Test with unaligned base
TEST_CASE( 11, x3, 0x3098, \
la x1, tdat9; \
li x2, 0x00003098; \
addi x1, x1, -5; \
sh x2, 7(x1); \
la x4, tdat10; \
lh x3, 0(x4); \
)
#-------------------------------------------------------------
# Bypassing tests
#-------------------------------------------------------------
TEST_ST_SRC12_BYPASS( 12, 0, 0, lh, sh, 0xffffccdd, 0, tdat );
TEST_ST_SRC12_BYPASS( 13, 0, 1, lh, sh, 0xffffbccd, 2, tdat );
TEST_ST_SRC12_BYPASS( 14, 0, 2, lh, sh, 0xffffbbcc, 4, tdat );
TEST_ST_SRC12_BYPASS( 15, 1, 0, lh, sh, 0xffffabbc, 6, tdat );
TEST_ST_SRC12_BYPASS( 16, 1, 1, lh, sh, 0xffffaabb, 8, tdat );
TEST_ST_SRC12_BYPASS( 17, 2, 0, lh, sh, 0xffffdaab, 10, tdat );
TEST_ST_SRC21_BYPASS( 18, 0, 0, lh, sh, 0x2233, 0, tdat );
TEST_ST_SRC21_BYPASS( 19, 0, 1, lh, sh, 0x1223, 2, tdat );
TEST_ST_SRC21_BYPASS( 20, 0, 2, lh, sh, 0x1122, 4, tdat );
TEST_ST_SRC21_BYPASS( 21, 1, 0, lh, sh, 0x0112, 6, tdat );
TEST_ST_SRC21_BYPASS( 22, 1, 1, lh, sh, 0x0011, 8, tdat );
TEST_ST_SRC21_BYPASS( 23, 2, 0, lh, sh, 0x3001, 10, tdat );
#---------------------------------------------------------------
# Side effect tests
#---------------------------------------------------------------
# sh to a word aligned address should only affect the 2 lower bytes
# and should leave the 2 upper bytes unmodified.
#
# In this test we write 2 bytes to the lower 2 bytes of the word
# tdat11 and then ensure that the both the upper 2 bytes and
# lower 2 bytes are as expected.
TEST_CASE( 24, x3, 0x12343098, \
la x1, tdat11; \
li x2, 0x00003098; \
sh x2, 0(x1); \
lw x3, 0(x1); \
)
li a0, 0xbeef
la a1, tdat
sh a0, 6(a1)
TEST_PASSFAIL
RVTEST_CODE_END
.data
RVTEST_DATA_BEGIN
TEST_DATA
tdat:
tdat1: .half 0xbeef
tdat2: .half 0xbeef
tdat3: .half 0xbeef
tdat4: .half 0xbeef
tdat5: .half 0xbeef
tdat6: .half 0xbeef
tdat7: .half 0xbeef
tdat8: .half 0xbeef
tdat9: .half 0xbeef
tdat10: .half 0xbeef
tdat11: .word 0x12345678
RVTEST_DATA_END
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