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Theodosius/Examples/Theodosius-Usermode/asmjit/core/operand.cpp

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4 years ago
// AsmJit - Machine code generation for C++
//
// * Official AsmJit Home Page: https://asmjit.com
// * Official Github Repository: https://github.com/asmjit/asmjit
//
// Copyright (c) 2008-2020 The AsmJit Authors
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
#include "../core/api-build_p.h"
#include "../core/operand.h"
ASMJIT_BEGIN_NAMESPACE
// ============================================================================
// [asmjit::Operand - Unit]
// ============================================================================
#if defined(ASMJIT_TEST)
UNIT(operand) {
INFO("Checking operand sizes");
EXPECT(sizeof(Operand) == 16);
EXPECT(sizeof(BaseReg) == 16);
EXPECT(sizeof(BaseMem) == 16);
EXPECT(sizeof(Imm) == 16);
EXPECT(sizeof(Label) == 16);
INFO("Checking basic functionality of Operand");
Operand a, b;
Operand dummy;
EXPECT(a.isNone() == true);
EXPECT(a.isReg() == false);
EXPECT(a.isMem() == false);
EXPECT(a.isImm() == false);
EXPECT(a.isLabel() == false);
EXPECT(a == b);
EXPECT(a._data[0] == 0);
EXPECT(a._data[1] == 0);
INFO("Checking basic functionality of Label");
Label label;
EXPECT(label.isValid() == false);
EXPECT(label.id() == Globals::kInvalidId);
INFO("Checking basic functionality of BaseReg");
EXPECT(BaseReg().isReg() == true);
EXPECT(BaseReg().isValid() == false);
EXPECT(BaseReg()._data[0] == 0);
EXPECT(BaseReg()._data[1] == 0);
EXPECT(dummy.as<BaseReg>().isValid() == false);
// Create some register (not specific to any architecture).
uint32_t rSig = Operand::kOpReg | (1 << Operand::kSignatureRegTypeShift ) |
(2 << Operand::kSignatureRegGroupShift) |
(8 << Operand::kSignatureSizeShift ) ;
BaseReg r1 = BaseReg::fromSignatureAndId(rSig, 5);
EXPECT(r1.isValid() == true);
EXPECT(r1.isReg() == true);
EXPECT(r1.isReg(1) == true);
EXPECT(r1.isPhysReg() == true);
EXPECT(r1.isVirtReg() == false);
EXPECT(r1.signature() == rSig);
EXPECT(r1.type() == 1);
EXPECT(r1.group() == 2);
EXPECT(r1.size() == 8);
EXPECT(r1.id() == 5);
EXPECT(r1.isReg(1, 5) == true); // RegType and Id.
EXPECT(r1._data[0] == 0);
EXPECT(r1._data[1] == 0);
// The same type of register having different id.
BaseReg r2(r1, 6);
EXPECT(r2.isValid() == true);
EXPECT(r2.isReg() == true);
EXPECT(r2.isReg(1) == true);
EXPECT(r2.isPhysReg() == true);
EXPECT(r2.isVirtReg() == false);
EXPECT(r2.signature() == rSig);
EXPECT(r2.type() == r1.type());
EXPECT(r2.group() == r1.group());
EXPECT(r2.size() == r1.size());
EXPECT(r2.id() == 6);
EXPECT(r2.isReg(1, 6) == true);
r1.reset();
EXPECT(!r1.isReg());
EXPECT(!r1.isValid());
INFO("Checking basic functionality of BaseMem");
BaseMem m;
EXPECT(m.isMem());
EXPECT(m == BaseMem());
EXPECT(m.hasBase() == false);
EXPECT(m.hasIndex() == false);
EXPECT(m.hasOffset() == false);
EXPECT(m.isOffset64Bit() == true);
EXPECT(m.offset() == 0);
m.setOffset(-1);
EXPECT(m.offsetLo32() == -1);
EXPECT(m.offset() == -1);
int64_t x = int64_t(0xFF00FF0000000001u);
int32_t xHi = int32_t(0xFF00FF00u);
m.setOffset(x);
EXPECT(m.offset() == x);
EXPECT(m.offsetLo32() == 1);
EXPECT(m.offsetHi32() == xHi);
INFO("Checking basic functionality of Imm");
Imm immValue(-42);
EXPECT(immValue.type() == Imm::kTypeInteger);
EXPECT(Imm(-1).value() == -1);
EXPECT(imm(-1).value() == -1);
EXPECT(immValue.value() == -42);
EXPECT(imm(0xFFFFFFFF).value() == int64_t(0xFFFFFFFF));
Imm immDouble(0.4);
EXPECT(immDouble.type() == Imm::kTypeDouble);
EXPECT(immDouble.valueAs<double>() == 0.4);
EXPECT(immDouble == imm(0.4));
}
#endif
ASMJIT_END_NAMESPACE