2 % (c) The AQUA Project, Glasgow University, 1994-1998
5 \section[PrelAddr]{Module @PrelAddr@}
8 {-# OPTIONS -fno-implicit-prelude #-}
13 , plusAddr -- :: Addr -> Int -> Addr
14 , indexAddrOffAddr -- :: Addr -> Int -> Addr
29 data Addr = A# Addr# deriving (Eq, Ord)
30 data Word = W# Word# deriving (Eq, Ord)
33 nullAddr = A# (int2Addr# 0#)
35 plusAddr :: Addr -> Int -> Addr
36 plusAddr (A# addr) (I# off) = A# (int2Addr# (addr2Int# addr +# off))
38 instance CCallable Addr
39 instance CReturnable Addr
41 instance CCallable Word
42 instance CReturnable Word
44 wordToInt :: Word -> Int
45 wordToInt (W# w#) = I# (word2Int# w#)
47 intToWord :: Int -> Word
48 intToWord (I# i#) = W# (int2Word# i#)
50 #if WORD_SIZE_IN_BYTES == 8
51 data Word64 = W64# Word#
52 data Int64 = I64# Int#
54 data Word64 = W64# Word64# --deriving (Eq, Ord) -- Glasgow extension
55 data Int64 = I64# Int64# --deriving (Eq, Ord) -- Glasgow extension
58 instance CCallable Word64
59 instance CReturnable Word64
61 instance CCallable Int64
62 instance CReturnable Int64
64 indexAddrOffAddr :: Addr -> Int -> Addr
65 indexAddrOffAddr (A# addr#) n
66 = case n of { I# n# ->
67 case indexAddrOffAddr# addr# n# of { r# ->