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Code Issues Releases Activity

unbreak tests

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bird_egop
2025-04-14 23:08:52 +03:00
parent 685eeda03d
commit 9117830ff1
41 changed files with 3820 additions and 736 deletions
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115
X86DisassemblerTests/InstructionTests/Group3InstructionTests.cs
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@ -1,4 +1,5 @@
using X86Disassembler.X86;
using X86Disassembler.X86.Operands;
namespace X86DisassemblerTests.InstructionTests;
@ -17,15 +18,26 @@ public class Group3InstructionTests
// NOT EAX (F7 D0) - ModR/M byte D0 = 11 010 000 (mod=3, reg=2, rm=0)
// mod=3 means direct register addressing, reg=2 indicates NOT operation, rm=0 is EAX
byte[] codeBuffer = new byte[] { 0xF7, 0xD0 };
var decoder = new InstructionDecoder(codeBuffer, codeBuffer.Length);
var disassembler = new Disassembler(codeBuffer, 0);
// Act
var instruction = decoder.DecodeInstruction();
var instructions = disassembler.Disassemble();
// Assert
Assert.Single(instructions);
var instruction = instructions[0];
Assert.NotNull(instruction);
Assert.Equal("not", instruction.Mnemonic);
Assert.Equal("eax", instruction.Operands);
Assert.Equal(InstructionType.Not, instruction.Type);
// Check that we have one operand
Assert.Single(instruction.StructuredOperands);
// Check the operand (EAX)
var eaxOperand = instruction.StructuredOperands[0];
Assert.IsType<RegisterOperand>(eaxOperand);
var registerOperand = (RegisterOperand)eaxOperand;
Assert.Equal(RegisterIndex.A, registerOperand.Register);
Assert.Equal(32, registerOperand.Size); // Validate that it's a 32-bit register (EAX)
}
/// <summary>
@ -38,15 +50,26 @@ public class Group3InstructionTests
// NEG ECX (F7 D9) - ModR/M byte D9 = 11 011 001 (mod=3, reg=3, rm=1)
// mod=3 means direct register addressing, reg=3 indicates NEG operation, rm=1 is ECX
byte[] codeBuffer = new byte[] { 0xF7, 0xD9 };
var decoder = new InstructionDecoder(codeBuffer, codeBuffer.Length);
var disassembler = new Disassembler(codeBuffer, 0);
// Act
var instruction = decoder.DecodeInstruction();
var instructions = disassembler.Disassemble();
// Assert
Assert.Single(instructions);
var instruction = instructions[0];
Assert.NotNull(instruction);
Assert.Equal("neg", instruction.Mnemonic);
Assert.Equal("ecx", instruction.Operands);
Assert.Equal(InstructionType.Neg, instruction.Type);
// Check that we have one operand
Assert.Single(instruction.StructuredOperands);
// Check the operand (ECX)
var ecxOperand = instruction.StructuredOperands[0];
Assert.IsType<RegisterOperand>(ecxOperand);
var registerOperand = (RegisterOperand)ecxOperand;
Assert.Equal(RegisterIndex.C, registerOperand.Register);
Assert.Equal(32, registerOperand.Size); // Validate that it's a 32-bit register (ECX)
}
/// <summary>
@ -59,15 +82,26 @@ public class Group3InstructionTests
// MUL EDX (F7 E2) - ModR/M byte E2 = 11 100 010 (mod=3, reg=4, rm=2)
// mod=3 means direct register addressing, reg=4 indicates MUL operation, rm=2 is EDX
byte[] codeBuffer = new byte[] { 0xF7, 0xE2 };
var decoder = new InstructionDecoder(codeBuffer, codeBuffer.Length);
var disassembler = new Disassembler(codeBuffer, 0);
// Act
var instruction = decoder.DecodeInstruction();
var instructions = disassembler.Disassemble();
// Assert
Assert.Single(instructions);
var instruction = instructions[0];
Assert.NotNull(instruction);
Assert.Equal("mul", instruction.Mnemonic);
Assert.Equal("edx", instruction.Operands);
Assert.Equal(InstructionType.Mul, instruction.Type);
// Check that we have one operand
Assert.Single(instruction.StructuredOperands);
// Check the operand (EDX)
var edxOperand = instruction.StructuredOperands[0];
Assert.IsType<RegisterOperand>(edxOperand);
var registerOperand = (RegisterOperand)edxOperand;
Assert.Equal(RegisterIndex.D, registerOperand.Register);
Assert.Equal(32, registerOperand.Size); // Validate that it's a 32-bit register (EDX)
}
/// <summary>
@ -80,15 +114,26 @@ public class Group3InstructionTests
// IMUL EBX (F7 EB) - ModR/M byte EB = 11 101 011 (mod=3, reg=5, rm=3)
// mod=3 means direct register addressing, reg=5 indicates IMUL operation, rm=3 is EBX
byte[] codeBuffer = new byte[] { 0xF7, 0xEB };
var decoder = new InstructionDecoder(codeBuffer, codeBuffer.Length);
var disassembler = new Disassembler(codeBuffer, 0);
// Act
var instruction = decoder.DecodeInstruction();
var instructions = disassembler.Disassemble();
// Assert
Assert.Single(instructions);
var instruction = instructions[0];
Assert.NotNull(instruction);
Assert.Equal("imul", instruction.Mnemonic);
Assert.Equal("ebx", instruction.Operands);
Assert.Equal(InstructionType.IMul, instruction.Type);
// Check that we have one operand
Assert.Single(instruction.StructuredOperands);
// Check the operand (EBX)
var ebxOperand = instruction.StructuredOperands[0];
Assert.IsType<RegisterOperand>(ebxOperand);
var registerOperand = (RegisterOperand)ebxOperand;
Assert.Equal(RegisterIndex.B, registerOperand.Register);
Assert.Equal(32, registerOperand.Size); // Validate that it's a 32-bit register (EBX)
}
/// <summary>
@ -101,15 +146,26 @@ public class Group3InstructionTests
// DIV ESP (F7 F4) - ModR/M byte F4 = 11 110 100 (mod=3, reg=6, rm=4)
// mod=3 means direct register addressing, reg=6 indicates DIV operation, rm=4 is ESP
byte[] codeBuffer = new byte[] { 0xF7, 0xF4 };
var decoder = new InstructionDecoder(codeBuffer, codeBuffer.Length);
var disassembler = new Disassembler(codeBuffer, 0);
// Act
var instruction = decoder.DecodeInstruction();
var instructions = disassembler.Disassemble();
// Assert
Assert.Single(instructions);
var instruction = instructions[0];
Assert.NotNull(instruction);
Assert.Equal("div", instruction.Mnemonic);
Assert.Equal("esp", instruction.Operands);
Assert.Equal(InstructionType.Div, instruction.Type);
// Check that we have one operand
Assert.Single(instruction.StructuredOperands);
// Check the operand (ESP)
var espOperand = instruction.StructuredOperands[0];
Assert.IsType<RegisterOperand>(espOperand);
var registerOperand = (RegisterOperand)espOperand;
Assert.Equal(RegisterIndex.Sp, registerOperand.Register);
Assert.Equal(32, registerOperand.Size); // Validate that it's a 32-bit register (ESP)
}
/// <summary>
@ -122,14 +178,25 @@ public class Group3InstructionTests
// IDIV EBP (F7 FD) - ModR/M byte FD = 11 111 101 (mod=3, reg=7, rm=5)
// mod=3 means direct register addressing, reg=7 indicates IDIV operation, rm=5 is EBP
byte[] codeBuffer = new byte[] { 0xF7, 0xFD };
var decoder = new InstructionDecoder(codeBuffer, codeBuffer.Length);
var disassembler = new Disassembler(codeBuffer, 0);
// Act
var instruction = decoder.DecodeInstruction();
var instructions = disassembler.Disassemble();
// Assert
Assert.Single(instructions);
var instruction = instructions[0];
Assert.NotNull(instruction);
Assert.Equal("idiv", instruction.Mnemonic);
Assert.Equal("ebp", instruction.Operands);
Assert.Equal(InstructionType.IDiv, instruction.Type);
// Check that we have one operand
Assert.Single(instruction.StructuredOperands);
// Check the operand (EBP)
var ebpOperand = instruction.StructuredOperands[0];
Assert.IsType<RegisterOperand>(ebpOperand);
var registerOperand = (RegisterOperand)ebpOperand;
Assert.Equal(RegisterIndex.Bp, registerOperand.Register);
Assert.Equal(32, registerOperand.Size); // Validate that it's a 32-bit register (EBP)
}
}