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Fixed TEST instruction handlers and tests. Updated TestImmWithRm8Handler and TestImmWithRm32Handler to properly check opcode in CanHandle and validate reg field in Decode. Improved test cases to use InstructionDecoder directly.

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bird_egop
2025-04-12 21:21:03 +03:00
parent bf5fcdd2ff
commit fe0b04f5a1
10 changed files with 330 additions and 74 deletions
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13
X86Disassembler/X86/Handlers/TestEaxImmHandler.cs
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@@ -39,13 +39,20 @@ public class TestEaxImmHandler : InstructionHandler
int position = Decoder.GetPosition();
if (position + 4 > Length)
if (position + 3 >= Length)
{
return false;
}
// Read the immediate value
uint imm32 = BitConverter.ToUInt32(CodeBuffer, position);
// Read the immediate value - x86 is little-endian, so we need to read the bytes in the correct order
byte b0 = CodeBuffer[position];
byte b1 = CodeBuffer[position + 1];
byte b2 = CodeBuffer[position + 2];
byte b3 = CodeBuffer[position + 3];
// Combine the bytes to form a 32-bit immediate value
uint imm32 = (uint)(b0 | (b1 << 8) | (b2 << 16) | (b3 << 24));
Decoder.SetPosition(position + 4);
// Set the operands