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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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7
X86Disassembler/X86/Handlers/Test/TestImmWithRm8Handler.cs
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@ -53,11 +53,8 @@ public class TestImmWithRm8Handler : InstructionHandler
// Set the instruction type
instruction.Type = InstructionType.Test;
// Read the ModR/M byte
var (mod, reg, rm, destinationOperand) = ModRMDecoder.ReadModRM();
// Ensure the destination operand has the correct size (8-bit)
destinationOperand.Size = 8;
// Read the ModR/M byte, specifying that we're dealing with 8-bit operands
var (mod, reg, rm, destinationOperand) = ModRMDecoder.ReadModRM8();
// Check if we have enough bytes for the immediate value
if (!Decoder.CanReadByte())

9
X86Disassembler/X86/Handlers/Test/TestRegMem8Handler.cs
View File

@ -36,15 +36,18 @@ public class TestRegMem8Handler : InstructionHandler
{
// Set the instruction type
instruction.Type = InstructionType.Test;
// Check if we have enough bytes for the ModR/M byte
if (!Decoder.CanReadByte())
{
return false;
}
// Read the ModR/M byte
var (mod, reg, rm, destOperand) = ModRMDecoder.ReadModRM();
// Read the ModR/M byte, specifying that we're dealing with 8-bit operands
var (mod, reg, rm, destOperand) = ModRMDecoder.ReadModRM8();
// Ensure the destination operand has the correct size (8-bit)
destOperand.Size = 8;
// Create the register operand for the reg field (8-bit)
var regOperand = OperandFactory.CreateRegisterOperand(reg, 8);