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Code Issues Releases Activity

Fix x86 disassembler issues with direct memory addressing and immediate value formatting

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This commit is contained in:
bird_egop
2025-04-15 02:29:32 +03:00
parent d351f41808
commit 3ea327064a
67 changed files with 854 additions and 453 deletions
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18
X86DisassemblerTests/InstructionTests/InstructionSequenceTests.cs
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@ -28,9 +28,9 @@ public class InstructionSequenceTests
Assert.True(instructions[0].Type == InstructionType.Jge,
$"Expected 'Jge', but got '{instructions[0].Type}'");
// Check the operand (immediate value for jump target)
// Check the operand (relative offset for jump target)
var jgeOperand = instructions[0].StructuredOperands[0];
Assert.IsType<ImmediateOperand>(jgeOperand);
Assert.IsType<RelativeOffsetOperand>(jgeOperand);
// Second instruction: ADD EBP, 0x18
Assert.Equal(InstructionType.Add, instructions[1].Type);
@ -54,9 +54,9 @@ public class InstructionSequenceTests
// Third instruction: JMP LAB_10001c54
Assert.Equal(InstructionType.Jmp, instructions[2].Type);
// Check the operand (immediate value for jump target)
// Check the operand (relative offset for jump target)
var jmpOperand = instructions[2].StructuredOperands[0];
Assert.IsType<ImmediateOperand>(jmpOperand);
Assert.IsType<RelativeOffsetOperand>(jmpOperand);
// Fourth instruction: ADD EBP, -0x48
Assert.Equal(InstructionType.Add, instructions[3].Type);
@ -75,7 +75,7 @@ public class InstructionSequenceTests
immOperand = instructions[3].StructuredOperands[1];
Assert.IsType<ImmediateOperand>(immOperand);
immediateOperand = (ImmediateOperand)immOperand;
Assert.Equal(0xFFFFFFB8U, immediateOperand.Value); // -0x48 sign-extended to 32-bit
Assert.Equal(0xFFFFFFB8UL, immediateOperand.Value); // -0x48 sign-extended to 32-bit
// Fifth instruction: MOV EDX, dword ptr [ESI + 0x4]
Assert.Equal(InstructionType.Mov, instructions[4].Type);
@ -118,9 +118,9 @@ public class InstructionSequenceTests
// First instruction should be JGE with relative offset
Assert.Equal(InstructionType.Jge, instructions[0].Type);
// Check the operand (immediate value for jump target)
// Check the operand (relative offset for jump target)
var jgeOperand = instructions[0].StructuredOperands[0];
Assert.IsType<ImmediateOperand>(jgeOperand);
Assert.IsType<RelativeOffsetOperand>(jgeOperand);
// Second instruction should be ADD EBP, 0x18
Assert.Equal(InstructionType.Add, instructions[1].Type);
@ -144,9 +144,9 @@ public class InstructionSequenceTests
// Third instruction should be JMP
Assert.Equal(InstructionType.Jmp, instructions[2].Type);
// Check the operand (immediate value for jump target)
// Check the operand (relative offset for jump target)
var jmpOperand = instructions[2].StructuredOperands[0];
Assert.IsType<ImmediateOperand>(jmpOperand);
Assert.IsType<RelativeOffsetOperand>(jmpOperand);
// Fourth instruction should be ADD EBP, -0x48
Assert.Equal(InstructionType.Add, instructions[3].Type);