1// Copyright 2012 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef V8_IA32_SIMULATOR_IA32_H_
6#define V8_IA32_SIMULATOR_IA32_H_
7
8#include "src/allocation.h"
9
10namespace v8 {
11namespace internal {
12
13// Since there is no simulator for the ia32 architecture the only thing we can
14// do is to call the entry directly.
15#define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \
16  (entry(p0, p1, p2, p3, p4))
17
18
19typedef int (*regexp_matcher)(String*, int, const byte*,
20                              const byte*, int*, int, Address, int, Isolate*);
21
22// Call the generated regexp code directly. The code at the entry address should
23// expect eight int/pointer sized arguments and return an int.
24#define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7, p8) \
25  (FUNCTION_CAST<regexp_matcher>(entry)(p0, p1, p2, p3, p4, p5, p6, p7, p8))
26
27
28// The stack limit beyond which we will throw stack overflow errors in
29// generated code. Because generated code on ia32 uses the C stack, we
30// just use the C stack limit.
31class SimulatorStack : public v8::internal::AllStatic {
32 public:
33  static inline uintptr_t JsLimitFromCLimit(Isolate* isolate,
34                                            uintptr_t c_limit) {
35    USE(isolate);
36    return c_limit;
37  }
38
39  static inline uintptr_t RegisterCTryCatch(uintptr_t try_catch_address) {
40    return try_catch_address;
41  }
42
43  static inline void UnregisterCTryCatch() { }
44};
45
46} }  // namespace v8::internal
47
48#endif  // V8_IA32_SIMULATOR_IA32_H_
49