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https://github.com/sampletext32/ParkanPlayground.git
synced 2025-06-20 16:18:37 +03:00
nice big refactor
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@ -11,11 +11,11 @@ public class TestEaxImmHandler : InstructionHandler
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/// <param name="codeBuffer">The buffer containing the code to decode</param>
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/// <param name="decoder">The instruction decoder that owns this handler</param>
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/// <param name="length">The length of the buffer</param>
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public TestEaxImmHandler(byte[] codeBuffer, InstructionDecoder decoder, int length)
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public TestEaxImmHandler(byte[] codeBuffer, InstructionDecoder decoder, int length)
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: base(codeBuffer, decoder, length)
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{
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}
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/// <summary>
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/// Checks if this handler can decode the given opcode
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/// </summary>
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@ -25,7 +25,7 @@ public class TestEaxImmHandler : InstructionHandler
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{
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return opcode == 0xA9;
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}
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/// <summary>
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/// Decodes a TEST EAX, imm32 instruction
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/// </summary>
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@ -36,28 +36,20 @@ public class TestEaxImmHandler : InstructionHandler
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{
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// Set the mnemonic
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instruction.Mnemonic = "test";
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int position = Decoder.GetPosition();
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if (position + 3 >= Length)
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{
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return false;
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}
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// Read the immediate value - x86 is little-endian, so we need to read the bytes in the correct order
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byte b0 = CodeBuffer[position];
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byte b1 = CodeBuffer[position + 1];
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byte b2 = CodeBuffer[position + 2];
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byte b3 = CodeBuffer[position + 3];
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// Combine the bytes to form a 32-bit immediate value
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uint imm32 = (uint)(b0 | (b1 << 8) | (b2 << 16) | (b3 << 24));
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Decoder.SetPosition(position + 4);
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var imm32 = Decoder.ReadUInt32();
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// Set the operands
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instruction.Operands = $"eax, 0x{imm32:X8}";
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return true;
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}
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}
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}
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