Import of the watch repository from Pebble

2025-07-08 07:40:37 -04:00 · 2024-12-12 16:43:03 -08:00 · 2024-12-12 16:43:03 -08:00 · 3b92768480
commit 3b92768480
10334 changed files with 2564465 additions and 0 deletions
--- a/third_party/jerryscript/jerry-core/vm/opcodes-ecma-bitwise.c
+++ b/third_party/jerryscript/jerry-core/vm/opcodes-ecma-bitwise.c
@ -0,0 +1,157 @@
+/* Copyright 2014-2016 Samsung Electronics Co., Ltd.
+ * Copyright 2015-2016 University of Szeged.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ecma-alloc.h"
+#include "ecma-conversion.h"
+#include "ecma-helpers.h"
+#include "ecma-try-catch-macro.h"
+#include "opcodes.h"
+
+/** \addtogroup vm Virtual machine
+ * @{
+ *
+ * \addtogroup vm_opcodes Opcodes
+ * @{
+ */
+
+/**
+ * Perform ECMA number logic operation.
+ *
+ * The algorithm of the operation is following:
+ *   leftNum = ToNumber (leftValue);
+ *   rightNum = ToNumber (rightValue);
+ *   result = leftNum BitwiseLogicOp rightNum;
+ *
+ * @return ecma value
+ *         Returned value must be freed with ecma_free_value
+ */
+ecma_value_t
+do_number_bitwise_logic (number_bitwise_logic_op op, /**< number bitwise logic operation */
+                         ecma_value_t left_value, /**< left value */
+                         ecma_value_t right_value) /**< right value */
+{
+  JERRY_STATIC_ASSERT (ECMA_DIRECT_TYPE_INTEGER_VALUE == 0,
+                       ecma_direct_type_integer_value_must_be_zero_for_bitwise_logic);
+  JERRY_STATIC_ASSERT ((ECMA_DIRECT_TYPE_MASK | ECMA_VALUE_ERROR_FLAG) == ((1 << ECMA_DIRECT_SHIFT) - 1),
+                       direct_type_mask_and_error_flag_must_fill_all_bits_before_the_value_starts);
+
+  JERRY_ASSERT (!ECMA_IS_VALUE_ERROR (left_value)
+                && !ECMA_IS_VALUE_ERROR (right_value));
+
+  if (ecma_are_values_integer_numbers (left_value, right_value))
+  {
+    switch (op)
+    {
+      case NUMBER_BITWISE_LOGIC_AND:
+      {
+        return left_value & right_value;
+      }
+      case NUMBER_BITWISE_LOGIC_OR:
+      {
+        return left_value | right_value;
+      }
+      case NUMBER_BITWISE_LOGIC_XOR:
+      {
+        return (left_value ^ right_value) & (ecma_value_t) (~((1 << ECMA_DIRECT_SHIFT) - 1));
+      }
+      case NUMBER_BITWISE_SHIFT_LEFT:
+      {
+        ecma_integer_value_t left_integer = ecma_get_integer_from_value (left_value);
+        ecma_integer_value_t right_integer = ecma_get_integer_from_value (right_value);
+        return ecma_make_int32_value ((int32_t) (left_integer << (right_integer & 0x1f)));
+      }
+      case NUMBER_BITWISE_SHIFT_RIGHT:
+      {
+        ecma_integer_value_t left_integer = ecma_get_integer_from_value (left_value);
+        ecma_integer_value_t right_integer = ecma_get_integer_from_value (right_value);
+        return ecma_make_integer_value (left_integer >> (right_integer & 0x1f));
+      }
+      case NUMBER_BITWISE_SHIFT_URIGHT:
+      {
+        uint32_t left_uint32 = (uint32_t) ecma_get_integer_from_value (left_value);
+        ecma_integer_value_t right_integer = ecma_get_integer_from_value (right_value);
+        return ecma_make_uint32_value (left_uint32 >> (right_integer & 0x1f));
+      }
+      case NUMBER_BITWISE_NOT:
+      {
+        return (~right_value) & (ecma_value_t) (~((1 << ECMA_DIRECT_SHIFT) - 1));
+      }
+    }
+  }
+
+  ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
+
+  ECMA_OP_TO_NUMBER_TRY_CATCH (num_left, left_value, ret_value);
+  ECMA_OP_TO_NUMBER_TRY_CATCH (num_right, right_value, ret_value);
+
+  ecma_number_t result = ECMA_NUMBER_ZERO;
+  uint32_t right_uint32 = ecma_number_to_uint32 (num_right);
+
+  switch (op)
+  {
+    case NUMBER_BITWISE_LOGIC_AND:
+    {
+      uint32_t left_uint32 = ecma_number_to_uint32 (num_left);
+      result = (ecma_number_t) ((int32_t) (left_uint32 & right_uint32));
+      break;
+    }
+    case NUMBER_BITWISE_LOGIC_OR:
+    {
+      uint32_t left_uint32 = ecma_number_to_uint32 (num_left);
+      result = (ecma_number_t) ((int32_t) (left_uint32 | right_uint32));
+      break;
+    }
+    case NUMBER_BITWISE_LOGIC_XOR:
+    {
+      uint32_t left_uint32 = ecma_number_to_uint32 (num_left);
+      result = (ecma_number_t) ((int32_t) (left_uint32 ^ right_uint32));
+      break;
+    }
+    case NUMBER_BITWISE_SHIFT_LEFT:
+    {
+      result = (ecma_number_t) (ecma_number_to_int32 (num_left) << (right_uint32 & 0x1F));
+      break;
+    }
+    case NUMBER_BITWISE_SHIFT_RIGHT:
+    {
+      result = (ecma_number_t) (ecma_number_to_int32 (num_left) >> (right_uint32 & 0x1F));
+      break;
+    }
+    case NUMBER_BITWISE_SHIFT_URIGHT:
+    {
+      uint32_t left_uint32 = ecma_number_to_uint32 (num_left);
+      result = (ecma_number_t) (left_uint32 >> (right_uint32 & 0x1F));
+      break;
+    }
+    case NUMBER_BITWISE_NOT:
+    {
+      result = (ecma_number_t) ((int32_t) ~right_uint32);
+      break;
+    }
+  }
+
+  ret_value = ecma_make_number_value (result);
+
+  ECMA_OP_TO_NUMBER_FINALIZE (num_right);
+  ECMA_OP_TO_NUMBER_FINALIZE (num_left);
+
+  return ret_value;
+} /* do_number_bitwise_logic */
+
+/**
+ * @}
+ * @}
+ */