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Diffstat (limited to 'model/hex_bits_signed.sail')
| -rw-r--r-- | model/hex_bits_signed.sail | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/model/hex_bits_signed.sail b/model/hex_bits_signed.sail new file mode 100644 index 0000000..15bbea8 --- /dev/null +++ b/model/hex_bits_signed.sail @@ -0,0 +1,141 @@ +/*==========================================================================*/ +/* 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. */ +/*==========================================================================*/ + +$ifndef _HEX_BITS_SIGNED +$define _HEX_BITS_SIGNED + +$include <vector.sail> +$include <string.sail> + +val parse_hex_bits_signed : forall 'n, 'n > 0. (int('n), string) -> bits('n) +val valid_hex_bits_signed : forall 'n, 'n > 0. (int('n), string) -> bool + +val hex_bits_signed : forall 'n, 'n > 0. bits('n) <-> (int('n), string) + +function hex_bits_signed_forwards(bv) = { + if signed(bv) < 0 + then (length(bv), concat_str("-", hex_str(unsigned(not_vec(bv) + 1)))) + else (length(bv), hex_str(unsigned(bv))) +} +function hex_bits_signed_forwards_matches(bv) = true + +function parse_hex_bits_signed(n, str) = { + if string_take(str, 1) == "-" + then { + let str = string_drop(str, 1); + let bv = parse_hex_bits(n, str); + not_vec(bv) + 1 + } + else parse_hex_bits(n, str) +} + +function valid_hex_bits_signed(n, str) = { + if string_take(str, 1) == "-" + then valid_hex_bits(n, string_drop(str, 1)) + else valid_hex_bits(n, str) +} + +function hex_bits_signed_backwards(n, str) = parse_hex_bits_signed(n, str) +function hex_bits_signed_backwards_matches(n, str) = valid_hex_bits_signed(n, str) + +mapping hex_bits_signed_1 : bits(1) <-> string = { hex_bits_signed(1, s) <-> s } +mapping hex_bits_signed_2 : bits(2) <-> string = { hex_bits_signed(2, s) <-> s } +mapping hex_bits_signed_3 : bits(3) <-> string = { hex_bits_signed(3, s) <-> s } +mapping hex_bits_signed_4 : bits(4) <-> string = { hex_bits_signed(4, s) <-> s } +mapping hex_bits_signed_5 : bits(5) <-> string = { hex_bits_signed(5, s) <-> s } +mapping hex_bits_signed_6 : bits(6) <-> string = { hex_bits_signed(6, s) <-> s } +mapping hex_bits_signed_7 : bits(7) <-> string = { hex_bits_signed(7, s) <-> s } +mapping hex_bits_signed_8 : bits(8) <-> string = { hex_bits_signed(8, s) <-> s } +mapping hex_bits_signed_9 : bits(9) <-> string = { hex_bits_signed(9, s) <-> s } + +mapping hex_bits_signed_10 : bits(10) <-> string = { hex_bits_signed(10, s) <-> s } +mapping hex_bits_signed_11 : bits(11) <-> string = { hex_bits_signed(11, s) <-> s } +mapping hex_bits_signed_12 : bits(12) <-> string = { hex_bits_signed(12, s) <-> s } +mapping hex_bits_signed_13 : bits(13) <-> string = { hex_bits_signed(13, s) <-> s } +mapping hex_bits_signed_14 : bits(14) <-> string = { hex_bits_signed(14, s) <-> s } +mapping hex_bits_signed_15 : bits(15) <-> string = { hex_bits_signed(15, s) <-> s } +mapping hex_bits_signed_16 : bits(16) <-> string = { hex_bits_signed(16, s) <-> s } +mapping hex_bits_signed_17 : bits(17) <-> string = { hex_bits_signed(17, s) <-> s } +mapping hex_bits_signed_18 : bits(18) <-> string = { hex_bits_signed(18, s) <-> s } +mapping hex_bits_signed_19 : bits(19) <-> string = { hex_bits_signed(19, s) <-> s } + +mapping hex_bits_signed_20 : bits(20) <-> string = { hex_bits_signed(20, s) <-> s } +mapping hex_bits_signed_21 : bits(21) <-> string = { hex_bits_signed(21, s) <-> s } +mapping hex_bits_signed_22 : bits(22) <-> string = { hex_bits_signed(22, s) <-> s } +mapping hex_bits_signed_23 : bits(23) <-> string = { hex_bits_signed(23, s) <-> s } +mapping hex_bits_signed_24 : bits(24) <-> string = { hex_bits_signed(24, s) <-> s } +mapping hex_bits_signed_25 : bits(25) <-> string = { hex_bits_signed(25, s) <-> s } +mapping hex_bits_signed_26 : bits(26) <-> string = { hex_bits_signed(26, s) <-> s } +mapping hex_bits_signed_27 : bits(27) <-> string = { hex_bits_signed(27, s) <-> s } +mapping hex_bits_signed_28 : bits(28) <-> string = { hex_bits_signed(28, s) <-> s } +mapping hex_bits_signed_29 : bits(29) <-> string = { hex_bits_signed(29, s) <-> s } + +mapping hex_bits_signed_30 : bits(30) <-> string = { hex_bits_signed(30, s) <-> s } +mapping hex_bits_signed_31 : bits(31) <-> string = { hex_bits_signed(31, s) <-> s } +mapping hex_bits_signed_32 : bits(32) <-> string = { hex_bits_signed(32, s) <-> s } + +$endif _HEX_BITS_SIGNED |