Import of the watch repository from Pebble

third_party/jerryscript/jerry-core/vm/vm-defines.h

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+/* Copyright 2015-2016 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.
+ */
+#ifndef VM_DEFINES_H
+#define VM_DEFINES_H
+
+#include "byte-code.h"
+#include "ecma-globals.h"
+
+/** \addtogroup vm Virtual machine
+ * @{
+ *
+ * \addtogroup vm_executor Executor
+ * @{
+ */
+
+/**
+ * Helpers for updating uint16_t values.
+ */
+#define VM_PLUS_EQUAL_U16(base, value) (base) = (uint16_t) ((base) + (value))
+#define VM_MINUS_EQUAL_U16(base, value) (base) = (uint16_t) ((base) - (value))
+
+/**
+ * Instruction counter / position
+ */
+typedef const uint8_t *vm_instr_counter_t;
+
+/**
+ * Context of interpreter, related to a JS stack frame
+ */
+typedef struct
+{
+  const ecma_compiled_code_t *bytecode_header_p;      /**< currently executed byte-code data */
+  uint8_t *byte_code_p;                               /**< current byte code pointer */
+  uint8_t *byte_code_start_p;                         /**< byte code start pointer */
+  ecma_value_t *registers_p;                          /**< register start pointer */
+  ecma_value_t *stack_top_p;                          /**< stack top pointer */
+  jmem_cpointer_t *literal_start_p;                   /**< literal list start pointer */
+  ecma_object_t *lex_env_p;                           /**< current lexical environment */
+  ecma_value_t this_binding;                          /**< this binding */
+  ecma_value_t call_block_result;                     /**< preserve block result during a call */
+  uint16_t context_depth;                             /**< current context depth */
+  uint8_t is_eval_code;                               /**< eval mode flag */
+  uint8_t call_operation;                             /**< perform a call or construct operation */
+} vm_frame_ctx_t;
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* !VM_DEFINES_H */