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Code Issues Releases Activity

new handlers and test fixes

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This commit is contained in:
bird_egop
2025-04-16 20:54:08 +03:00
parent f654f64c71
commit 800915b534
20 changed files with 342 additions and 117 deletions
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28
X86Disassembler/X86/Handlers/Mov/MovRm8Imm8Handler.cs
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@ -23,7 +23,23 @@ public class MovRm8Imm8Handler : InstructionHandler
/// <returns>True if this handler can decode the opcode</returns>
public override bool CanHandle(byte opcode)
{
return opcode == 0xC6;
// First check if the opcode matches
if (opcode != 0xC6)
{
return false;
}
// Then check if we can peek at the ModR/M byte
if (!Decoder.CanReadByte())
{
return false;
}
// Peek at the ModR/M byte without advancing the position
var reg = ModRMDecoder.PeakModRMReg();
// MOV r/m8, imm8 only uses reg=0
return reg == 0;
}
/// <summary>
@ -47,14 +63,8 @@ public class MovRm8Imm8Handler : InstructionHandler
// For MOV r/m8, imm8 (0xC6):
// - The r/m field with mod specifies the destination operand (register or memory)
// - The immediate value is the source operand
var (_, reg, _, destinationOperand) = ModRMDecoder.ReadModRM8();
// MOV r/m8, imm8 only uses reg=0
if (reg != 0)
{
return false;
}
var (_, _, _, destinationOperand) = ModRMDecoder.ReadModRM8();
// Note: The operand size is already set to 8-bit by the ReadModRM8 method
// Read the immediate value