Added ENABLE_DIV and picorv32_pcpi_div

4 files changed, 164 insertions, 0 deletions

diff --git a/tests/div.S b/tests/div.S
new file mode 100644
index 0000000..a4504a7
--- /dev/null
+++ b/tests/div.S
@@ -0,0 +1,41 @@
+# See LICENSE for license details.
+
+#*****************************************************************************
+# div.S
+#-----------------------------------------------------------------------------
+#
+# Test div instruction.
+#
+
+#include "riscv_test.h"
+#include "test_macros.h"
+
+RVTEST_RV32U
+RVTEST_CODE_BEGIN
+
+  #-------------------------------------------------------------
+  # Arithmetic tests
+  #-------------------------------------------------------------
+
+  TEST_RR_OP( 2, div,  3,  20,   6 );
+  TEST_RR_OP( 3, div, -3, -20,   6 );
+  TEST_RR_OP( 4, div, -3,  20,  -6 );
+  TEST_RR_OP( 5, div,  3, -20,  -6 );
+
+  TEST_RR_OP( 6, div, -1<<63, -1<<63,  1 );
+  TEST_RR_OP( 7, div, -1<<63, -1<<63, -1 );
+
+  TEST_RR_OP( 8, div, -1, -1<<63, 0 );
+  TEST_RR_OP( 9, div, -1,      1, 0 );
+  TEST_RR_OP(10, div, -1,      0, 0 );
+
+  TEST_PASSFAIL
+
+RVTEST_CODE_END
+
+  .data
+RVTEST_DATA_BEGIN
+
+  TEST_DATA
+
+RVTEST_DATA_END
diff --git a/tests/divu.S b/tests/divu.S
new file mode 100644
index 0000000..cd348c9
--- /dev/null
+++ b/tests/divu.S
@@ -0,0 +1,41 @@
+# See LICENSE for license details.
+
+#*****************************************************************************
+# divu.S
+#-----------------------------------------------------------------------------
+#
+# Test divu instruction.
+#
+
+#include "riscv_test.h"
+#include "test_macros.h"
+
+RVTEST_RV32U
+RVTEST_CODE_BEGIN
+
+  #-------------------------------------------------------------
+  # Arithmetic tests
+  #-------------------------------------------------------------
+
+  TEST_RR_OP( 2, divu,                   3,  20,   6 );
+  TEST_RR_OP( 3, divu,           715827879, -20,   6 );
+  TEST_RR_OP( 4, divu,                   0,  20,  -6 );
+  TEST_RR_OP( 5, divu,                   0, -20,  -6 );
+
+  TEST_RR_OP( 6, divu, -1<<31, -1<<31,  1 );
+  TEST_RR_OP( 7, divu,     0,  -1<<31, -1 );
+
+  TEST_RR_OP( 8, divu, -1, -1<<31, 0 );
+  TEST_RR_OP( 9, divu, -1,      1, 0 );
+  TEST_RR_OP(10, divu, -1,      0, 0 );
+
+  TEST_PASSFAIL
+
+RVTEST_CODE_END
+
+  .data
+RVTEST_DATA_BEGIN
+
+  TEST_DATA
+
+RVTEST_DATA_END
diff --git a/tests/rem.S b/tests/rem.S
new file mode 100644
index 0000000..c318e2c
--- /dev/null
+++ b/tests/rem.S
@@ -0,0 +1,41 @@
+# See LICENSE for license details.
+
+#*****************************************************************************
+# rem.S
+#-----------------------------------------------------------------------------
+#
+# Test rem instruction.
+#
+
+#include "riscv_test.h"
+#include "test_macros.h"
+
+RVTEST_RV32U
+RVTEST_CODE_BEGIN
+
+  #-------------------------------------------------------------
+  # Arithmetic tests
+  #-------------------------------------------------------------
+
+  TEST_RR_OP( 2, rem,  2,  20,   6 );
+  TEST_RR_OP( 3, rem, -2, -20,   6 );
+  TEST_RR_OP( 4, rem,  2,  20,  -6 );
+  TEST_RR_OP( 5, rem, -2, -20,  -6 );
+
+  TEST_RR_OP( 6, rem,  0, -1<<63,  1 );
+  TEST_RR_OP( 7, rem,  0, -1<<63, -1 );
+
+  TEST_RR_OP( 8, rem, -1<<63, -1<<63, 0 );
+  TEST_RR_OP( 9, rem,      1,      1, 0 );
+  TEST_RR_OP(10, rem,      0,      0, 0 );
+
+  TEST_PASSFAIL
+
+RVTEST_CODE_END
+
+  .data
+RVTEST_DATA_BEGIN
+
+  TEST_DATA
+
+RVTEST_DATA_END
diff --git a/tests/remu.S b/tests/remu.S
new file mode 100644
index 0000000..38d641d
--- /dev/null
+++ b/tests/remu.S
@@ -0,0 +1,41 @@
+# See LICENSE for license details.
+
+#*****************************************************************************
+# remu.S
+#-----------------------------------------------------------------------------
+#
+# Test remu instruction.
+#
+
+#include "riscv_test.h"
+#include "test_macros.h"
+
+RVTEST_RV32U
+RVTEST_CODE_BEGIN
+
+  #-------------------------------------------------------------
+  # Arithmetic tests
+  #-------------------------------------------------------------
+
+  TEST_RR_OP( 2, remu,   2,  20,   6 );
+  TEST_RR_OP( 3, remu,   2, -20,   6 );
+  TEST_RR_OP( 4, remu,  20,  20,  -6 );
+  TEST_RR_OP( 5, remu, -20, -20,  -6 );
+
+  TEST_RR_OP( 6, remu,      0, -1<<63,  1 );
+  TEST_RR_OP( 7, remu, -1<<63, -1<<63, -1 );
+
+  TEST_RR_OP( 8, remu, -1<<63, -1<<63, 0 );
+  TEST_RR_OP( 9, remu,      1,      1, 0 );
+  TEST_RR_OP(10, remu,      0,      0, 0 );
+
+  TEST_PASSFAIL
+
+RVTEST_CODE_END
+
+  .data
+RVTEST_DATA_BEGIN
+
+  TEST_DATA
+
+RVTEST_DATA_END