private V1Instruction[] disassemble()
{
if (readNextOp() != V1Opcode.PROC)
{
throw new Exception("Function does not start with PROC");
}
var insns = new List <V1Instruction>();
while (cursor_ < cursor_limit_)
{
int address = cursor_;
int op = readNext();
if (op == (int)V1Opcode.PROC || op == (int)V1Opcode.ENDPROC)
{
break;
}
var insn = new V1Instruction();
insn.Address = address;
insn.Info = opcode_list_[op];
insns.Add(insn);
// CASETBL is special in that it is variable-length.
if (op == (int)V1Opcode.CASETBL)
{
var ncases = readNext();
insn.Params = new int[(ncases + 1) * 2];
insn.Params[0] = ncases;
insn.Params[1] = readNext();
for (var i = 0; i < ncases; i++)
{
insn.Params[2 + i * 2] = readNext();
insn.Params[2 + i * 2 + 1] = readNext();
}
continue;
}
insn.Params = new int[insn.Info.Params.Length];
for (var i = 0; i < insn.Info.Params.Length; i++)
{
insn.Params[i] = readNext();
}
// Catch calls to unknown functions so they can be disassembled easily too.
if (op == (int)V1Opcode.CALL)
{
var addr = insn.Params[0];
if (!file_.IsFunctionAtAddress(addr))
{
file_.CalledFunctions.AddFunction((uint)addr);
}
}
}
return(insns.ToArray());
}
