public override void Build(X86Assembler m)
{
m.i86();
// A straight-forward factorial function + a driver program to ensure the return value
// is USE'd.
m.Mov(cx, 0x100);
m.Push(cx);
m.Call("factorial");
m.Add(Registers.sp, 2);
m.Mov(m.WordPtr(0x0100), ax);
m.Ret();
m.Proc("factorial");
m.Push(bp);
m.Mov(bp, sp);
m.Mov(ax, m.WordPtr(bp, 4));
m.Dec(ax);
m.Jz("base_case");
m.Push(ax);
m.Call("factorial");
m.Inc(sp);
m.Inc(sp);
m.Mov(dx, m.WordPtr(bp, 4));
m.Imul(dx);
m.Jmp("done");
m.Label("base_case");
m.Mov(ax, 1);
m.Label("done");
m.Pop(bp);
m.Ret();
m.Endp("factorial");
}
public void Scanner_CallGraphTree()
{
Program prog = new Program();
var addr = Address.SegPtr(0xC00, 0);
var m = new X86Assembler(new IntelArchitecture(ProcessorMode.Real), addr, new List<EntryPoint>());
m.i86();
m.Proc("main");
m.Call("baz");
m.Ret();
m.Endp("main");
m.Proc("foo");
m.Ret();
m.Endp("foo");
m.Proc("bar");
m.Ret();
m.Endp("bar");
m.Proc("baz");
m.Call("foo");
m.Call("bar");
m.Jmp("foo");
m.Endp("baz");
var lr = m.GetImage();
prog.Image = lr.Image;
prog.ImageMap = lr.ImageMap;
prog.Architecture = lr.Architecture;
prog.Platform = new FakePlatform(null, arch);
var proj = new Project { Programs = { prog } };
var scan = new Scanner(prog, new Dictionary<Address, ProcedureSignature>(), new ImportResolver(proj), new FakeDecompilerEventListener());
EntryPoint ep = new EntryPoint(addr, prog.Architecture.CreateProcessorState());
scan.EnqueueEntryPoint(ep);
scan.ScanImage();
Assert.AreEqual(4, prog.Procedures.Count);
}
