ulong GetRegisterValue(Variable.Register reg)
{
ulong result;
switch (reg)
{
case Variable.Register.CV_REG_AL:
case Variable.Register.CV_REG_AH:
case Variable.Register.CV_REG_AX:
case Variable.Register.CV_REG_EAX:
result = mRegisters.Eax;
break;
case Variable.Register.CV_REG_CL:
case Variable.Register.CV_REG_CH:
case Variable.Register.CV_REG_CX:
case Variable.Register.CV_REG_ECX:
result = mRegisters.Ecx;
break;
case Variable.Register.CV_REG_DL:
case Variable.Register.CV_REG_DH:
case Variable.Register.CV_REG_DX:
case Variable.Register.CV_REG_EDX:
result = mRegisters.Edx;
break;
case Variable.Register.CV_REG_BL:
case Variable.Register.CV_REG_BH:
case Variable.Register.CV_REG_BX:
case Variable.Register.CV_REG_EBX:
result = mRegisters.Ebx;
break;
case Variable.Register.CV_REG_SP:
case Variable.Register.CV_REG_ESP:
result = mRegisters.Esp;
break;
case Variable.Register.CV_REG_BP:
case Variable.Register.CV_REG_EBP:
result = mRegisters.Ebp;
break;
case Variable.Register.CV_REG_SI:
case Variable.Register.CV_REG_ESI:
result = mRegisters.Esi;
break;
case Variable.Register.CV_REG_DI:
case Variable.Register.CV_REG_EDI:
result = mRegisters.Edi;
break;
case Variable.Register.CV_REG_ES:
result = mRegisters.Es;
break;
case Variable.Register.CV_REG_CS:
result = mRegisters.Cs;
break;
case Variable.Register.CV_REG_SS:
result = mRegisters.Ss;
break;
case Variable.Register.CV_REG_DS:
result = mRegisters.Ds;
break;
case Variable.Register.CV_REG_FS:
result = mRegisters.Fs;
break;
case Variable.Register.CV_REG_GS:
result = mRegisters.Gs;
break;
case Variable.Register.CV_REG_IP:
case Variable.Register.CV_REG_EIP:
result = mRegisters.Eip;
break;
case Variable.Register.CV_REG_FLAGS:
case Variable.Register.CV_REG_EFLAGS:
result = mRegisters.Eflags;
break;
default:
Trace.Assert(false);
return mRegisters.Eax;
}
switch (reg)
{
case Variable.Register.CV_REG_AL:
case Variable.Register.CV_REG_CL:
case Variable.Register.CV_REG_DL:
case Variable.Register.CV_REG_BL:
return result & 0xff;
case Variable.Register.CV_REG_AH:
case Variable.Register.CV_REG_CH:
case Variable.Register.CV_REG_DH:
case Variable.Register.CV_REG_BH:
return (result >> 8) & 0xff;
case Variable.Register.CV_REG_AX:
case Variable.Register.CV_REG_CX:
case Variable.Register.CV_REG_DX:
case Variable.Register.CV_REG_BX:
case Variable.Register.CV_REG_SP:
case Variable.Register.CV_REG_BP:
case Variable.Register.CV_REG_SI:
case Variable.Register.CV_REG_DI:
case Variable.Register.CV_REG_ES:
case Variable.Register.CV_REG_CS:
case Variable.Register.CV_REG_SS:
return result & 0xffff;
default:
return result;
}
}
Variable MakeVarFromSym(SYMBOL_INFO symInfo)
{
Variable v = new Variable();
v.Local = (symInfo.Flags & SymInfoFlags.SYMFLAG_LOCAL) != SymInfoFlags.SYMFLAG_NONE;
v.Parameter = (symInfo.Flags & SymInfoFlags.SYMFLAG_PARAMETER) != SymInfoFlags.SYMFLAG_NONE;
v.Regval = (symInfo.Flags & SymInfoFlags.SYMFLAG_REGISTER) != SymInfoFlags.SYMFLAG_NONE;
v.Regrel = (symInfo.Flags & SymInfoFlags.SYMFLAG_REGREL) != SymInfoFlags.SYMFLAG_NONE;
v.Reg = (Variable.Register)symInfo.Register;
v.Offset = (int)symInfo.Address;
v.Size = (int)symInfo.Size;
v.Name = symInfo.Name;
return v;
}
public DisplayValue(DebugConnection conn, Registers reg, Variable var)
{
mName = var.Name;
mConnection = conn;
mRegisters = reg;
mVariable = var;
mReader = new BinaryReader(mConnection.NewMemoryStream());
StringBuilder sb = new StringBuilder();
ulong regVal;
byte[] buf = new byte[mVariable.Size];
if (mVariable.Regval)
{
regVal = GetRegisterValue(mVariable.Reg);
sb.Append(string.Format("{0:X}", regVal));
mValue = sb.ToString();
return;
}
else if (mVariable.Regrel)
{
regVal = GetRegisterValue(mVariable.Reg);
mReader.BaseStream.Seek((long)regVal + mVariable.Offset, SeekOrigin.Begin);
mReader.Read(buf, 0, buf.Length);
}
else if (mVariable.Local || mVariable.Parameter)
{
mReader.BaseStream.Seek(mVariable.Offset, SeekOrigin.Begin);
mReader.Read(buf, 0, buf.Length);
}
if (buf.Length == 4)
{
sb.Append(string.Format("{3:X2}{2:X2}{1:X2}{0:X2}",
buf[0], buf[1], buf[2], buf[3]));
}
else
{
foreach (byte b in buf)
sb.Append(string.Format("{0:X2} ", (int)b));
}
mValue = sb.ToString();
}