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\documentclass{article}
\usepackage{axiom}
\author{Gabriel Dos~Reis}
\begin{document}
\begin{abstract}
\end{abstract}
\tableofcontents
\eject
\section{The Byte domain}
<<domain BYTE Byte>>=
import NonNegativeInteger
import OutputForm
)abbrev domain BYTE Byte
++ Author: Gabriel Dos Reis
++ Date Created: April 19, 2008
++ Related Constructor:
++ Description:
++ Byte is the datatype of 8-bit sized unsigned integer values.
Byte(): Public == Private where
Public == Join(OrderedSet, CoercibleTo NonNegativeInteger,
CoercibleTo Character) with
byte: NonNegativeInteger -> %
++ byte(x) injects the unsigned integer value `v' into
++ the Byte algebra. `v' must be non-negative and less than 256.
coerce: NonNegativeInteger -> %
++ coerce(x) has the same effect as byte(x).
coerce: Character -> %
++ coerce(c) views `c' a a byte. In particular `c' is supposed
++ to have a numerical value less than 256.
bitand: (%,%) -> %
++ bitand(x,y) returns the bitwise `and' of `x' and `y'.
bitior: (%,%) -> %
++ bitor(x,y) returns the bitwise `inclusive or' of `x' and `y'.
Private == add
import Character
byte(x: NonNegativeInteger): % ==
not (x < 256$Lisp) =>
userError "integer value cannot be represented by a byte"
x : %
hash x == SXHASH(x)$Lisp
coerce(x: NonNegativeInteger): % == byte x
coerce(x: %): NonNegativeInteger == x : NonNegativeInteger
coerce(c: Character) == ord(c)::%
coerce(x: %): Character == char(x::NonNegativeInteger)
coerce(x: %): OutputForm ==
x::NonNegativeInteger::OutputForm
x = y == byteEqual(x,y)$Lisp
x < y == byteLessThan(x,y)$Lisp
bitand(x,y) == bitand(x,y)$Lisp
bitior(x,y) == bitior(x,y)$Lisp
@
\section{The ByteArray domain}
<<domain BYTEARY ByteArray>>=
import PrimitiveArray
import Byte
)abbrev domain BYTEARY ByteArray
++ Author: Gabriel Dos Reis
++ Date Created: April 19, 2008
++ Related Constructor:
++ Description:
++ ByteArray provides datatype for fix-sized buffer of bytes.
ByteArray() == PrimitiveArray Byte
@
\section{The DataBuffer domain}
<<domain DATABUF DataBuffer>>=
)abbrev domain DATABUF DataBuffer
++ Author: Gabriel Dos Reis
++ Date Created: August 23, 2008
++ Description:
++ This domain provides for a fixed-sized homogeneous data buffer.
DataBuffer(N: PositiveInteger, T: SetCategory): Public == Private where
Public == SetCategory with
new: () -> %
++ new() returns a fresly allocated data buffer or length N.
elt: (%,NonNegativeInteger) -> T
++ elt(b,i) returns the ith element in buffer `b'. Indexing
++ is 0-based.
setelt: (%,NonNegativeInteger,T) -> T
++ setelt(b,i,x) sets the ith entry of data buffer `b' to `x'.
++ Indexing is 0-based.
Private == add
new() ==
makeSimpleArray(getVMType(T)$Lisp,N)$Lisp
elt(b,i) ==
getSimpleArrayEntry(b,i)$Lisp
setelt(b,i,x) ==
setSimpleArrayEntry(b,i,x)$Lisp
x = y ==
EQUAL(x,y)$Lisp
coerce(b: %): OutputForm ==
bracket([elt(b,i)::OutputForm for i in 0..(N-1)])
@
\section{License}
<<license>>=
--Copyright (C) 2007-2008, Gabriel Dos Reis.
--All rights reserved.
--
--Redistribution and use in source and binary forms, with or without
--modification, are permitted provided that the following conditions are
--met:
--
-- - Redistributions of source code must retain the above copyright
-- notice, this list of conditions and the following disclaimer.
--
-- - Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in
-- the documentation and/or other materials provided with the
-- distribution.
--
-- - Neither the name of The Numerical Algorithms Group Ltd. nor the
-- names of its contributors may be used to endorse or promote products
-- derived from this software without specific prior written permission.
--
--THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
--IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
--TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
--PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
--OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
--EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
--PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
--PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
--LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
--NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
--SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@
<<*>>=
<<license>>
<<domain BYTE Byte>>
<<domain BYTEARY ByteArray>>
@
\end{document}
|
