-// ===---------------------------------------------------------------------===//
-// This following definitions describe the simple machine model which
-// will replace itineraries.
+// FIXME: Need bypasses.
+// FIXME: Model the multiple stages of IIC_iMOVix2, IIC_iMOVix2addpc, and
+// IIC_iMOVix2ld better.
+// FIXME: Model the special immediate shifts that are not microcoded.
+// FIXME: Do we need to model the fact that uses of r15 in a micro-op force it
+// to issue on pipe 1?
+// FIXME: Model the pipelined behavior of CMP / TST instructions.
+// FIXME: Better model the microcode stages of multiply instructions, especially
+// conditional variants.
+// FIXME: Add preload instruction when it is documented.
+// FIXME: Model non-pipelined nature of FP div / sqrt unit.