Merge "Use springbok renode config files to initialize platform."
diff --git a/scripts/vec_test_helpers/__init__.py b/scripts/vec_test_helpers/__init__.py
index 87f457e..2268bd7 100644
--- a/scripts/vec_test_helpers/__init__.py
+++ b/scripts/vec_test_helpers/__init__.py
@@ -14,6 +14,7 @@
         VECTOR = enum.auto()
         SCALAR = enum.auto()
         IMMEDIATE = enum.auto()
+        FLOATSCALAR = enum.auto()
 
     class OperandWidth(enum.Enum):
         """RISC-V V operand width type option."""
@@ -37,6 +38,11 @@
             OperandWidth.WIDENING: "vi",
             OperandWidth.NARROWING: "wi",
         },
+        OperandType.FLOATSCALAR : {
+            OperandWidth.STANDARD: "vf",
+            OperandWidth.WIDENING: "vf",
+            OperandWidth.NARROWING: "wf",
+        },
     }
 
     """Helper class for providing params for use in templates"""
@@ -52,12 +58,14 @@
             8:np.uint8,
             16:np.uint16,
             32:np.uint32}
+        self.float_np_types = {
+            32:np.float32}
 
     @property
     def op_code(self):
         """Return the op_code."""
         if self._op_code is None:
-            raise ValueError("SEW was not set.")
+            raise ValueError("OP CODE was not set.")
         return self._op_code
 
     @op_code.setter
@@ -65,6 +73,10 @@
         """Set the op_code"""
         self._op_code = value
 
+    def is_floating(self):
+        """check if a particular op_code is a floating type."""
+        return self.op_code[1] == 'f'
+
     @property
     def sew(self):
         """Return the selected element width."""
@@ -75,74 +87,100 @@
     @sew.setter
     def sew(self, value):
         """Set the selected element width."""
+        if self.is_floating():
+            if not (value == 32):
+                raise ValueError("Invalid SEW")
         if not value in (8, 16, 32):
             raise ValueError("Invalid SEW")
         self._sew = value
 
     def is_widening(self):
         """Check if a particular op_code is a widening type."""
+        if self.is_floating():
+            raise ValueError("Widening is not supported with this template for floating point values")
         return self.op_code[1] == 'w'
 
     def is_narrowing(self):
         """Check if a particular op_code is a narrowing type."""
+        if self.is_floating():
+            raise ValueError("Narrowing is not supported with this template for floating point values")
         return self.op_code[1] == 'n'
 
     def is_destination_mask_register(self):
         """Check if a particular op_code has a mask output."""
+        if self.is_floating():
+            return False
         int_comparison_ops = ('vmseq', 'vmsne', 'vmsltu', 'vmsleu', 'vmsle', 'vmsgtu', 'vmsgt')
         return self.op_code in int_comparison_ops
 
     def is_unsigned(self):
         """Check if a particular op_code is a unsigned type."""
+        if self.is_floating():
+            raise ValueError("Invalid unsigned type op code")
         return self.op_code[-1] == 'u'
 
     def get_sews(self):
         """Given an op_code return a list of valid element widths."""
+        if self.is_floating():
+            return [32]
+
         if self.is_widening() or self.is_narrowing():
             return [8, 16]
         return [8, 16, 32]
 
     def get_sew_sizes(self):
-        """Return size of types."""
+        """Return size of types.
+        imm is not used for floating point op codes.
+        """
         dest_sew = self.sew
         src2_sew = self.sew
         src1_sew = self.sew
         imm_sew = self.sew
-        if self.is_narrowing():
+        if not self.is_floating() and self.is_narrowing():
             src2_sew = self.sew * 2
-        elif self.is_widening():
+        elif not self.is_floating() and self.is_widening():
             dest_sew = self.sew * 2
         return dest_sew, src2_sew, src1_sew, imm_sew
 
     def get_var_types(self):
-        """Return types for an op_code and element width."""
+        """Return types for an op_code and element width.
+        imm_type won't be used for floating point values.
+        """
         VarTypes = collections.namedtuple(
             "VarTypes",
             ('dest_type', 'src2_type', 'src1_type', 'imm_type'))
-        type_fmt = "%sint%d_t"
-        sign_type  = "u" if self.is_unsigned() or self.force_unsigned  else ""
-        dest_sew, src2_sew, src1_sew, imm_sew = self.get_sew_sizes()
-        dest_type = type_fmt % (sign_type, dest_sew)
-        src1_type = type_fmt % (sign_type, src1_sew)
-        src2_type = type_fmt % (sign_type, src2_sew)
-        imm_type = type_fmt % (sign_type, imm_sew)
-        var_types = VarTypes(dest_type, src2_type, src1_type, imm_type)
+        if self.is_floating():
+            var_types = VarTypes("float", "float", "float", "float")
+        else:
+            type_fmt = "%sint%d_t"
+            sign_type  = "u" if self.is_unsigned() or self.force_unsigned else ""
+            dest_sew, src2_sew, src1_sew, imm_sew = self.get_sew_sizes()
+            dest_type = type_fmt % (sign_type, dest_sew)
+            src1_type = type_fmt % (sign_type, src1_sew)
+            src2_type = type_fmt % (sign_type, src2_sew)
+            imm_type = type_fmt % (sign_type, imm_sew)
+            var_types = VarTypes(dest_type, src2_type, src1_type, imm_type)
         return var_types
 
     def get_mnemonic(self, operand_type):
         """Generate the correct mnemonic given a opcode and operand type."""
         operand_width = self.OperandWidth.STANDARD
-        if self.is_narrowing():
-            operand_width = self.OperandWidth.NARROWING
-        elif self.is_widening():
-            operand_width = self.OperandWidth.WIDENING
+        if self.is_floating():
+            if operand_type == self.OperandType.SCALAR:
+                operand_type = self.OperandType.FLOATSCALAR
+        else:
+            if self.is_narrowing():
+                operand_width = self.OperandWidth.NARROWING
+            elif self.is_widening():
+                operand_width = self.OperandWidth.WIDENING
         op_suffix = self.mnemonic_suffix[operand_type][operand_width]
         return "%s.%s" % (self.op_code, op_suffix)
 
     def get_lmuls(self):
         """Given an op_code return an iterable of valid lmuls."""
-        if self.is_widening() or self.is_narrowing():
-            return [1, 2, 4]
+        if not self.is_floating():
+            if self.is_widening() or self.is_narrowing():
+                return [1, 2, 4]
         return [1, 2, 4, 8]
 
     @staticmethod
@@ -154,16 +192,21 @@
     def get_softrvv_template_data_type(self):
         """Return types """
         var_types = self.get_var_types()
-        if self.is_narrowing() or self.is_widening():
-            return "%s, %s" % (var_types.dest_type, var_types.src2_type)
+        if not self.is_floating():
+            if self.is_narrowing() or self.is_widening():
+                return "%s, %s" % (var_types.dest_type, var_types.src2_type)
         return var_types.src1_type
 
     def get_ref_opcode(self):
         """Return the name of the reference code in the softrvv library."""
+        if self.is_floating():
+            return self.op_code
         return self.op_code[:-1] if self.is_unsigned() else self.op_code
 
     def get_imms(self):
         """Return a list of valid immediate values for a op code."""
+        if self.is_floating():
+            raise ValueError("imm is not available.")
         if self.op_code in ['vsll', 'vsrl', 'vsra', 'vnsrl', 'vnsra']:
             # Left and right shift immediates must be [0,31]
             return np.linspace(0, 31, 8, dtype=np.int32)
@@ -172,6 +215,8 @@
 
     def get_np_dest_type(self):
         """Return numpy type for destination."""
+        if self.is_floating():
+            return self.float_np_types[self.sew]
         if self.force_unsigned:
             types = self.unsigned_np_types
         else:
@@ -182,6 +227,8 @@
 
     def get_np_src1_type(self):
         """Return numpy type for src1."""
+        if self.is_floating():
+            return self.float_np_types[self.sew]
         if self.force_unsigned:
             types = self.unsigned_np_types
         else:
@@ -190,6 +237,8 @@
 
     def get_np_src2_type(self):
         """Return numpy type for src2."""
+        if self.is_floating():
+            return self.float_np_types[self.sew]
         if self.force_unsigned:
             types = self.unsigned_np_types
         else:
@@ -202,12 +251,28 @@
         """Return test inputs."""
         src1_np_type = self.get_np_src1_type()
         src2_np_type = self.get_np_src2_type()
+        src2_np_type = self.get_np_src2_type()
+        # Return test inputs for floating points.
+        if self.is_floating():
+          type_info = np.finfo(src1_np_type)
+          src1_data = np.random.uniform(
+              type_info.min, type_info.max, n).astype(src1_np_type)
+          rs1 = self.get_np_src1_type()(np.random.uniform(
+              type_info.min, type_info.max))
+          type_info = np.finfo(src2_np_type)
+          src2_data = np.random.uniform(
+              type_info.min, type_info.max, n).astype(src2_np_type)
+          if not allow_zero:
+              src2_data[src2_data==0] = 1
+              rs1 = 1.0 if rs1 == 0.0 else rs1
+          return src2_data, src1_data, rs1
+
+        # Return test inputs for integers.
         type_info = np.iinfo(src1_np_type)
         src1_data =  np.random.randint(
             type_info.min, type_info.max, n).astype(src1_np_type)
         rs1 = self.get_np_src1_type()(np.random.randint(
             type_info.min, type_info.max))
-        src2_np_type = self.get_np_src2_type()
         type_info = np.iinfo(src2_np_type)
         src2_data = np.random.randint(
             type_info.min, type_info.max, n).astype(src2_np_type)
@@ -217,12 +282,14 @@
         return src2_data, src1_data, rs1
 
     def pack_dest_mask(self, values):
-            """Pack values into a single destination register."""
-            dest_type = self.get_np_dest_type()
-            return np.packbits(dest_type(values), bitorder='little')
+        """Pack values into a single destination register."""
+        dest_type = self.get_np_dest_type()
+        return np.packbits(dest_type(values), bitorder='little')
 
 def cast_to_unsigned(arr):
-    """Cast a signed array to an unsigned array."""
+    """Cast a signed array to an unsigned array.
+    This should not be called with floating point values.
+    """
     udtypes = {np.int8:np.uint8,
                np.int16:np.uint16,
                np.int32:np.uint32,
diff --git a/softrvv/include/softrvv.h b/softrvv/include/softrvv.h
index d82e7a0..18c2c21 100644
--- a/softrvv/include/softrvv.h
+++ b/softrvv/include/softrvv.h
@@ -2,12 +2,15 @@
 #define SOFTRVV_H
 
 #include <stddef.h>
+#include <stdint.h>
 
 #include "encoding.h"
 #include "softrvv_internal.h"
 #include "softrvv_vadd.h"
 #include "softrvv_vand.h"
 #include "softrvv_vdiv.h"
+#include "softrvv_vfsub.h"
+#include "softrvv_vfadd.h"
 #include "softrvv_vmax.h"
 #include "softrvv_vmin.h"
 #include "softrvv_vmseq.h"
diff --git a/softrvv/include/softrvv_vfadd.h b/softrvv/include/softrvv_vfadd.h
new file mode 100644
index 0000000..0a6633d
--- /dev/null
+++ b/softrvv/include/softrvv_vfadd.h
@@ -0,0 +1,22 @@
+#ifndef SOFTRVV_VFADD_H
+#define SOFTRVV_VFADD_H
+
+#include <stddef.h>
+
+namespace softrvv {
+
+void vfadd_vf(float *dest, float *src1, const float *src2, int32_t avl) {
+  for (int32_t idx = 0; idx < avl; idx++) {
+    dest[idx] = src1[idx] + *src2;
+  }
+}
+
+void vfadd_vv(float *dest, float *src1, float *src2, int32_t avl) {
+  for (int32_t idx = 0; idx < avl; idx++) {
+    dest[idx] = src1[idx] + src2[idx];
+  }
+}
+
+}  // namespace softrvv
+
+#endif  // SOFTRVV_VFADD_H
diff --git a/softrvv/include/softrvv_vfsub.h b/softrvv/include/softrvv_vfsub.h
new file mode 100644
index 0000000..aff1f52
--- /dev/null
+++ b/softrvv/include/softrvv_vfsub.h
@@ -0,0 +1,28 @@
+#ifndef SOFTRVV_VFSUB_H
+#define SOFTRVV_VFSUB_H
+
+#include <stddef.h>
+
+namespace softrvv {
+
+void vfsub_vf(float *dest, float *src1, const float *src2, int32_t avl) {
+  for (int idx = 0; idx < avl; idx++) {
+    dest[idx] = src1[idx] - *src2;
+  }
+}
+
+void vfsub_vv(float *dest, float *src1, float *src2, int32_t avl) {
+  for (int32_t idx = 0; idx < avl; idx++) {
+    dest[idx] = src1[idx] - src2[idx];
+  }
+}
+
+void vfrsub_vx(float *dest, float *src1, const float *src2, int32_t avl) {
+  for (int32_t idx = 0; idx < avl; idx++) {
+    dest[idx] = *src2 - src1[idx];
+  }
+}
+
+}  // namespace softrvv
+
+#endif  // SOFTRVV_VFSUB_H
diff --git a/softrvv/tests/templates/opivf_test.tpl.cpp b/softrvv/tests/templates/opivf_test.tpl.cpp
new file mode 100644
index 0000000..a32bc0d
--- /dev/null
+++ b/softrvv/tests/templates/opivf_test.tpl.cpp
@@ -0,0 +1,52 @@
+<%!
+import vec_test_helpers
+%>\
+<%def name="test_opivf(template_helper, src2, rs1, ref_vf)">
+<%
+src2 = vec_test_helpers.to_carr_str(src2)
+ref_vf = vec_test_helpers.to_carr_str(ref_vf)
+%>\
+namespace softrvv_${template_helper.op_code}_vf_test {
+namespace {
+${insert_variable_init(template_helper, src2, rs1, ref_vf)}
+
+class SoftRvv${template_helper.op_code.capitalize()}Test : public ::testing::Test {
+ protected:
+  void SetUp() override { memset(dest, 0, sizeof(dest)); }
+};
+${insert_test(template_helper)}\
+}  // namespace
+}  // namespace softrvv_${op}_vf_test\
+</%def>\
+
+<%def name="insert_variable_init(template_helper, src2, rs1, ref_vf)">
+<%
+  var_types = template_helper.get_var_types()
+%>\
+${var_types.src2_type} src2[] = {${src2}};
+${var_types.imm_type} rs1 = ${rs1};
+const int kAVL = sizeof(src2)/sizeof(src2[0]);
+${var_types.dest_type} dest[kAVL];
+
+${var_types.dest_type} ref_vf[kAVL] = {${ref_vf}};
+</%def>\
+
+<%def name="insert_test(template_helper)">
+<%
+var_types = template_helper.get_var_types()
+datatypes = template_helper.get_softrvv_template_data_type()
+%>\
+
+TEST_F(SoftRvv${template_helper.op_code.capitalize()}Test, VF) {
+  softrvv::${template_helper.op_code}_vf(dest, src2, &rs1, kAVL);\
+${insert_check(template_helper, var_types.dest_type, "ref_vf")}\
+}
+</%def>\
+
+<%def name="insert_check(template_helper, dest_type, ref_var)">
+% if template_helper.is_destination_mask_register():
+  assert_vec_mask_eq<${dest_type}>(kAVL, dest, ${ref_var});
+% else:
+  assert_vec_elem_eq<${dest_type}>(kAVL, dest, ${ref_var});
+% endif
+</%def>\
diff --git a/softrvv/tests/templates/opivv_test.tpl.cpp b/softrvv/tests/templates/opivv_test.tpl.cpp
new file mode 100644
index 0000000..ab54161
--- /dev/null
+++ b/softrvv/tests/templates/opivv_test.tpl.cpp
@@ -0,0 +1,57 @@
+<%!
+import vec_test_helpers
+%>\
+<%def name="test_opivv(template_helper, src2, src1,  ref_vv)">
+<%
+src1 = vec_test_helpers.to_carr_str(src1)
+src2 = vec_test_helpers.to_carr_str(src2)
+ref_vv = vec_test_helpers.to_carr_str(ref_vv)
+%>\
+namespace softrvv_${template_helper.op_code}_vv_test {
+namespace {
+${insert_variable_init(template_helper, src2, src1, ref_vv)}
+
+class SoftRvv${template_helper.op_code.capitalize()}Test : public ::testing::Test {
+ protected:
+  void SetUp() override { memset(dest, 0, sizeof(dest)); }
+};
+${insert_test(template_helper)}\
+}  // namespace
+}  // namespace softrvv_${op}_vv_test\
+</%def>\
+
+<%def name="insert_variable_init(template_helper, src2, src1, ref_vv)">
+<%
+  var_types = template_helper.get_var_types()
+%>\
+${var_types.src1_type} src1[] = {${src1}};
+${var_types.src2_type} src2[] = {${src2}};
+const int kAVL = sizeof(src1)/sizeof(src1[0]);
+${var_types.dest_type} dest[kAVL];
+
+${var_types.dest_type} ref_vv[kAVL] = {${ref_vv}};
+</%def>\
+
+<%def name="insert_test(template_helper)">
+<%
+var_types = template_helper.get_var_types()
+datatypes = template_helper.get_softrvv_template_data_type()
+%>\
+TEST_F(SoftRvv${template_helper.op_code.capitalize()}Test, VV) {
+  % if template_helper.is_floating():
+    softrvv::${template_helper.op_code}_vv(dest, src2, src1, kAVL);\
+  % else:
+    softrvv::${template_helper.op_code}_vv<${datatypes}>(dest, src2, src1, kAVL);\
+  % endif
+${insert_check(template_helper, var_types.dest_type, "ref_vv")}\
+}
+
+</%def>\
+
+<%def name="insert_check(template_helper, dest_type, ref_var)">
+% if template_helper.is_destination_mask_register():
+  assert_vec_mask_eq<${dest_type}>(kAVL, dest, ${ref_var});
+% else:
+  assert_vec_elem_eq<${dest_type}>(kAVL, dest, ${ref_var});
+% endif
+</%def>\
diff --git a/softrvv/tests/templates/softrvv_vfadd_test.tpl.cpp b/softrvv/tests/templates/softrvv_vfadd_test.tpl.cpp
new file mode 100644
index 0000000..ec8695b
--- /dev/null
+++ b/softrvv/tests/templates/softrvv_vfadd_test.tpl.cpp
@@ -0,0 +1,14 @@
+<%inherit file="base.tpl.cpp"/>\
+<%namespace name="tests_vv" file="opivv_test.tpl.cpp"/>\
+<%namespace name="tests_vf" file="opivf_test.tpl.cpp"/>\
+<%
+import numpy as np
+import vec_test_helpers
+template_helper = vec_test_helpers.VecTemplateHelper(op, 32)
+src2, src1, rs1 = template_helper.get_test_inputs(n=5)
+ref_vv = src2 + src1
+ref_vf = src2 + rs1
+%>\
+${tests_vv.test_opivv(template_helper, src2, src1, ref_vv)}
+${tests_vf.test_opivf(template_helper, src2, rs1, ref_vf)}
+
diff --git a/softrvv/tests/templates/softrvv_vfsub_test.tpl.cpp b/softrvv/tests/templates/softrvv_vfsub_test.tpl.cpp
new file mode 100644
index 0000000..f27fd3a
--- /dev/null
+++ b/softrvv/tests/templates/softrvv_vfsub_test.tpl.cpp
@@ -0,0 +1,13 @@
+<%inherit file="base.tpl.cpp"/>\
+<%namespace name="tests_vv" file="opivv_test.tpl.cpp"/>
+<%namespace name="tests_vf" file="opivf_test.tpl.cpp"/>
+<%
+import numpy as np
+import vec_test_helpers
+template_helper = vec_test_helpers.VecTemplateHelper(op, 32)
+src2, src1, rs1 = template_helper.get_test_inputs(n=5)
+ref_vv = src2 - src1
+ref_vf = src2 - rs1
+%>\
+${tests_vv.test_opivv(template_helper, src2, src1, ref_vv)}
+${tests_vf.test_opivf(template_helper, src2, rs1, ref_vf)}
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 2230dd1..d15c4fd 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -1,3 +1,4 @@
+
 vec_cc_generated_test(
   NAME
     vsub
@@ -391,3 +392,12 @@
   LINKOPTS
     -Xlinker --defsym=__itcm_length__=128K
 )
+
+vec_cc_test(
+  NAME
+    vector_vfadd_test
+  SRCS
+    vector_vfadd_test.cpp
+  LINKOPTS
+   -Xlinker --defsym=__itcm_length__=128K
+)
diff --git a/tests/vector_vfadd_test.cpp b/tests/vector_vfadd_test.cpp
new file mode 100644
index 0000000..208cb91
--- /dev/null
+++ b/tests/vector_vfadd_test.cpp
@@ -0,0 +1,67 @@
+#include <softrvv.h>
+#include <springbok.h>
+#include <stdio.h>
+
+#include <tuple>
+
+#include "pw_unit_test/framework.h"
+#include "test_v_helpers.h"
+
+namespace vfadd_vv_test
+{
+namespace
+{
+using namespace test_v_helpers;
+
+float src_vector_1[MAXVL_BYTES];
+float src_vector_2[MAXVL_BYTES];
+float dest_vector[MAXVL_BYTES];
+float ref_dest_vector[MAXVL_BYTES];
+
+class VfaddTest : public ::testing::Test {
+ protected:
+  void SetUp() override { zero_vector_registers(); }
+  void TearDown() override { zero_vector_registers(); }
+};
+
+TEST_F(VfaddTest, vfadd_vv32m1) {
+  for (int i = 0; i < AVL_COUNT; i++) {
+    int32_t avl = AVLS[i];
+    int vlmax;
+    int vl;
+
+    /* For non narrowing instructions all vectors have same type*/
+    std::tie(vlmax, vl) = vector_test_setup<int32_t>(
+        VLMUL::LMUL_M1, avl,
+        {dest_vector, ref_dest_vector, src_vector_1, src_vector_2});
+
+    if (avl > vlmax) {
+      continue;
+    }
+
+    float *ptr_vec_1 = reinterpret_cast<float *>(src_vector_1);
+    float *ptr_vec_2 = reinterpret_cast<float *>(src_vector_2);
+    float *ptr_dest_vec = reinterpret_cast<float *>(dest_vector);
+    float *ptr_ref_dest_vec = reinterpret_cast<float *>(ref_dest_vector);
+
+    // set up values to test up to index of the AVL
+    fill_random_vector<float>(ptr_vec_1, avl);
+    fill_random_vector<float>(ptr_vec_2, avl);
+
+    // Generate reference vector
+    softrvv::vfadd_vv(ptr_ref_dest_vec, ptr_vec_2, ptr_vec_1, avl);
+    // Load vector registers
+    __asm__ volatile("vle32.v v8, (%0)" : : "r"(ptr_vec_1));
+    __asm__ volatile("vle32.v v16, (%0)" : : "r"(ptr_vec_2));
+
+    // Run target instruction
+    __asm__ volatile("vfadd.vv v24, v16, v8");
+
+    // Store result vector register
+    __asm__ volatile("vse32.v v24, (%0)" : : "r"(ptr_dest_vec));
+    // Check vector elements
+    assert_vec_elem_eq<float>(vlmax, dest_vector, ref_dest_vector);
+  }
+}
+}  // namespace
+}  // namespace vfadd_vv_test