1 files changed, 96 insertions, 0 deletions
diff --git a/tests/sb.S b/tests/sb.S
new file mode 100644
index 0000000..05d1894
--- /dev/null
+++ b/tests/sb.S
@@ -0,0 +1,96 @@
+# See LICENSE for license details.
+
+#*****************************************************************************
+# sb.S
+#-----------------------------------------------------------------------------
+#
+# Test sb instruction.
+#
+
+#include "riscv_test.h"
+#include "test_macros.h"
+
+RVTEST_RV32U
+RVTEST_CODE_BEGIN
+
+  #-------------------------------------------------------------
+  # Basic tests
+  #-------------------------------------------------------------
+
+  TEST_ST_OP( 2, lb, sb, 0xffffffaa, 0, tdat );
+  TEST_ST_OP( 3, lb, sb, 0x00000000, 1, tdat );
+  TEST_ST_OP( 4, lh, sb, 0xffffefa0, 2, tdat );
+  TEST_ST_OP( 5, lb, sb, 0x0000000a, 3, tdat );
+
+  # Test with negative offset
+
+  TEST_ST_OP( 6, lb, sb, 0xffffffaa, -3, tdat8 );
+  TEST_ST_OP( 7, lb, sb, 0x00000000, -2, tdat8 );
+  TEST_ST_OP( 8, lb, sb, 0xffffffa0, -1, tdat8 );
+  TEST_ST_OP( 9, lb, sb, 0x0000000a, 0,  tdat8 );
+
+  # Test with a negative base
+
+  TEST_CASE( 10, x3, 0x78, \
+    la  x1, tdat9; \
+    li  x2, 0x12345678; \
+    addi x4, x1, -32; \
+    sb x2, 32(x4); \
+    lb x3, 0(x1); \
+  )
+
+  # Test with unaligned base
+
+  TEST_CASE( 11, x3, 0xffffff98, \
+    la  x1, tdat9; \
+    li  x2, 0x00003098; \
+    addi x1, x1, -6; \
+    sb x2, 7(x1); \
+    la  x4, tdat10; \
+    lb x3, 0(x4); \
+  )
+
+  #-------------------------------------------------------------
+  # Bypassing tests
+  #-------------------------------------------------------------
+
+  TEST_ST_SRC12_BYPASS( 12, 0, 0, lb, sb, 0xffffffdd, 0, tdat );
+  TEST_ST_SRC12_BYPASS( 13, 0, 1, lb, sb, 0xffffffcd, 1, tdat );
+  TEST_ST_SRC12_BYPASS( 14, 0, 2, lb, sb, 0xffffffcc, 2, tdat );
+  TEST_ST_SRC12_BYPASS( 15, 1, 0, lb, sb, 0xffffffbc, 3, tdat );
+  TEST_ST_SRC12_BYPASS( 16, 1, 1, lb, sb, 0xffffffbb, 4, tdat );
+  TEST_ST_SRC12_BYPASS( 17, 2, 0, lb, sb, 0xffffffab, 5, tdat );
+
+  TEST_ST_SRC21_BYPASS( 18, 0, 0, lb, sb, 0x33, 0, tdat );
+  TEST_ST_SRC21_BYPASS( 19, 0, 1, lb, sb, 0x23, 1, tdat );
+  TEST_ST_SRC21_BYPASS( 20, 0, 2, lb, sb, 0x22, 2, tdat );
+  TEST_ST_SRC21_BYPASS( 21, 1, 0, lb, sb, 0x12, 3, tdat );
+  TEST_ST_SRC21_BYPASS( 22, 1, 1, lb, sb, 0x11, 4, tdat );
+  TEST_ST_SRC21_BYPASS( 23, 2, 0, lb, sb, 0x01, 5, tdat );
+
+  li a0, 0xef
+  la a1, tdat
+  sb a0, 3(a1)
+
+  TEST_PASSFAIL
+
+RVTEST_CODE_END
+
+  .data
+RVTEST_DATA_BEGIN
+
+  TEST_DATA
+
+tdat:
+tdat1:  .byte 0xef
+tdat2:  .byte 0xef
+tdat3:  .byte 0xef
+tdat4:  .byte 0xef
+tdat5:  .byte 0xef
+tdat6:  .byte 0xef
+tdat7:  .byte 0xef
+tdat8:  .byte 0xef
+tdat9:  .byte 0xef
+tdat10: .byte 0xef
+
+RVTEST_DATA_END