-btw Why not let programmer use casm to provide assembly code instead
-of C code? ADR
-
-The (MP) integer operations are a true nightmare. Since we don't have
-a convenient abstract way of allocating temporary variables on the (C)
-stack, we use the space just below HpLim for the @MP_INT@ structures,
-and modify our heap check accordingly.
-
-\begin{code}
--- NB: ordering of clauses somewhere driven by
--- the desire to getting sane patt-matching behavior
-primCode res@[ar,sr,dr] IntegerNegOp arg@[aa,sa,da]
- = gmpNegate (ar,sr,dr) (aa,sa,da)
-\end{code}
-
-\begin{code}
-primCode [res] IntegerCmpOp args@[aa1,sa1,da1, aa2,sa2,da2]
- = gmpCompare res (aa1,sa1,da1, aa2,sa2,da2)
-
-primCode [res] Integer2IntOp arg@[aa,sa,da]
- = gmpInteger2Int res (aa,sa,da)
-
-primCode [res] Integer2WordOp arg@[aa,sa,da]
- = gmpInteger2Word res (aa,sa,da)
-
-primCode [res] Int2AddrOp [arg]
- = simpleCoercion AddrRep res arg
-
-primCode [res] Addr2IntOp [arg]
- = simpleCoercion IntRep res arg
-
-primCode [res] Int2WordOp [arg]
- = simpleCoercion IntRep{-WordRep?-} res arg
-
-primCode [res] Word2IntOp [arg]
- = simpleCoercion IntRep res arg
-\end{code}
-
-\begin{code}
-primCode [res] SameMutableArrayOp args
- = let
- compare = StPrim AddrEqOp (map amodeToStix args)
- assign = StAssign IntRep (amodeToStix res) compare
- in
- returnUs (\xs -> assign : xs)
-
-primCode res@[_] SameMutableByteArrayOp args
- = primCode res SameMutableArrayOp args
-\end{code}
-
-Freezing an array of pointers is a double assignment. We fix the
-header of the ``new'' closure because the lhs is probably a better
-addressing mode for the indirection (most likely, it's a VanillaReg).
-
-\begin{code}
-
-primCode [lhs] UnsafeFreezeArrayOp [rhs]
- = let
- lhs' = amodeToStix lhs
- rhs' = amodeToStix rhs
- header = StInd PtrRep lhs'
- assign = StAssign PtrRep lhs' rhs'
- freeze = StAssign PtrRep header mutArrPtrsFrozen_info
- in
- returnUs (\xs -> assign : freeze : xs)