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Add hex_bits library file
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@Alasdair
Alasdair committed Dec 6, 2023
1 parent ad0c274 commit f228c2b
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121 changes: 121 additions & 0 deletions lib/hex_bits.sail
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/*==========================================================================*/
/* Sail */
/* */
/* Sail and the Sail architecture models here, comprising all files and */
/* directories except the ASL-derived Sail code in the aarch64 directory, */
/* are subject to the BSD two-clause licence below. */
/* */
/* The ASL derived parts of the ARMv8.3 specification in */
/* aarch64/no_vector and aarch64/full are copyright ARM Ltd. */
/* */
/* Copyright (c) 2013-2021 */
/* Kathyrn Gray */
/* Shaked Flur */
/* Stephen Kell */
/* Gabriel Kerneis */
/* Robert Norton-Wright */
/* Christopher Pulte */
/* Peter Sewell */
/* Alasdair Armstrong */
/* Brian Campbell */
/* Thomas Bauereiss */
/* Anthony Fox */
/* Jon French */
/* Dominic Mulligan */
/* Stephen Kell */
/* Mark Wassell */
/* Alastair Reid (Arm Ltd) */
/* */
/* All rights reserved. */
/* */
/* This work was partially supported by EPSRC grant EP/K008528/1 <a */
/* href="http://www.cl.cam.ac.uk/users/pes20/rems">REMS: Rigorous */
/* Engineering for Mainstream Systems</a>, an ARM iCASE award, EPSRC IAA */
/* KTF funding, and donations from Arm. This project has received */
/* funding from the European Research Council (ERC) under the European */
/* Union’s Horizon 2020 research and innovation programme (grant */
/* agreement No 789108, ELVER). */
/* */
/* This software was developed by SRI International and the University of */
/* Cambridge Computer Laboratory (Department of Computer Science and */
/* Technology) under DARPA/AFRL contracts FA8650-18-C-7809 ("CIFV") */
/* and FA8750-10-C-0237 ("CTSRD"). */
/* */
/* Redistribution and use in source and binary forms, with or without */
/* modification, are permitted provided that the following conditions */
/* are met: */
/* 1. Redistributions of source code must retain the above copyright */
/* notice, this list of conditions and the following disclaimer. */
/* 2. 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. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. */
/*==========================================================================*/

$ifndef _HEX_BITS
$define _HEX_BITS

$include <vector.sail>
$include <string.sail>

val "parse_hex_bits" : forall 'n, 'n > 0. (int('n), string) -> bits('n)
val "valid_hex_bits" : forall 'n, 'n > 0. (int('n), string) -> bool

val hex_bits : forall 'n, 'n > 0. bits('n) <-> (int('n), string)

function hex_bits_forwards(bv) = (length(bv), hex_str(unsigned(bv)))
function hex_bits_forwards_matches(bv) = true

function hex_bits_backwards(n, str) = parse_hex_bits(n, str)
function hex_bits_backwards_matches(n, str) = valid_hex_bits(n, str)

mapping hex_bits_1 : bits(1) <-> string = { hex_bits(1, s) <-> s }
mapping hex_bits_2 : bits(2) <-> string = { hex_bits(2, s) <-> s }
mapping hex_bits_3 : bits(3) <-> string = { hex_bits(3, s) <-> s }
mapping hex_bits_4 : bits(4) <-> string = { hex_bits(4, s) <-> s }
mapping hex_bits_5 : bits(5) <-> string = { hex_bits(5, s) <-> s }
mapping hex_bits_6 : bits(6) <-> string = { hex_bits(6, s) <-> s }
mapping hex_bits_7 : bits(7) <-> string = { hex_bits(7, s) <-> s }
mapping hex_bits_8 : bits(8) <-> string = { hex_bits(8, s) <-> s }
mapping hex_bits_9 : bits(9) <-> string = { hex_bits(9, s) <-> s }

mapping hex_bits_10 : bits(10) <-> string = { hex_bits(10, s) <-> s }
mapping hex_bits_11 : bits(11) <-> string = { hex_bits(11, s) <-> s }
mapping hex_bits_12 : bits(12) <-> string = { hex_bits(12, s) <-> s }
mapping hex_bits_13 : bits(13) <-> string = { hex_bits(13, s) <-> s }
mapping hex_bits_14 : bits(14) <-> string = { hex_bits(14, s) <-> s }
mapping hex_bits_15 : bits(15) <-> string = { hex_bits(15, s) <-> s }
mapping hex_bits_16 : bits(16) <-> string = { hex_bits(16, s) <-> s }
mapping hex_bits_17 : bits(17) <-> string = { hex_bits(17, s) <-> s }
mapping hex_bits_18 : bits(18) <-> string = { hex_bits(18, s) <-> s }
mapping hex_bits_19 : bits(19) <-> string = { hex_bits(19, s) <-> s }

mapping hex_bits_20 : bits(20) <-> string = { hex_bits(20, s) <-> s }
mapping hex_bits_21 : bits(21) <-> string = { hex_bits(21, s) <-> s }
mapping hex_bits_22 : bits(22) <-> string = { hex_bits(22, s) <-> s }
mapping hex_bits_23 : bits(23) <-> string = { hex_bits(23, s) <-> s }
mapping hex_bits_24 : bits(24) <-> string = { hex_bits(24, s) <-> s }
mapping hex_bits_25 : bits(25) <-> string = { hex_bits(25, s) <-> s }
mapping hex_bits_26 : bits(26) <-> string = { hex_bits(26, s) <-> s }
mapping hex_bits_27 : bits(27) <-> string = { hex_bits(27, s) <-> s }
mapping hex_bits_28 : bits(28) <-> string = { hex_bits(28, s) <-> s }
mapping hex_bits_29 : bits(29) <-> string = { hex_bits(29, s) <-> s }

mapping hex_bits_30 : bits(30) <-> string = { hex_bits(30, s) <-> s }
mapping hex_bits_31 : bits(31) <-> string = { hex_bits(31, s) <-> s }
mapping hex_bits_32 : bits(32) <-> string = { hex_bits(32, s) <-> s }

$endif _HEX_BITS
6 changes: 6 additions & 0 deletions test/c/lib_hex_bits.expect
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ok
ok
ok
ok
ok
ok 0xffffffff
31 changes: 31 additions & 0 deletions test/c/lib_hex_bits.sail
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default Order dec

$include <prelude.sail>
$include <hex_bits.sail>

function main() -> unit = {
match hex_bits_1("0x1") {
0b1 => print_endline("ok"),
_ => print_endline("fail"),
};
match hex_bits_1(0b1) {
"0x1" => print_endline("ok"),
_ => print_endline("fail"),
};
match hex_bits_32("0xFFFFFFFF") {
0xFFFF_FFFF => print_endline("ok"),
_ => print_endline("fail"),
};
match hex_bits_32("0xffffffff") {
0xFFFF_FFFF => print_endline("ok"),
_ => print_endline("fail"),
};
match hex_bits_32(0xFFFF_FFFF) {
"0xffffffff" => print_endline("ok"),
s => print_endline(s),
};
match hex_bits_32(0xFFFF_FFFF) {
"0xFFFFFFFF" => print_endline("fail"),
s => print_endline(concat_str("ok ", s)),
}
}

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