From 8c778be42999972dcda1aac95999e0eb1a5e3e9c Mon Sep 17 00:00:00 2001 From: Tristan Gingold Date: Sat, 4 Jan 2014 11:25:55 +0100 Subject: Add ieee 2008 packages. --- libraries/ieee2008/numeric_bit_unsigned-body.vhdl | 589 ++++++++++++++++++++++ 1 file changed, 589 insertions(+) create mode 100644 libraries/ieee2008/numeric_bit_unsigned-body.vhdl (limited to 'libraries/ieee2008/numeric_bit_unsigned-body.vhdl') diff --git a/libraries/ieee2008/numeric_bit_unsigned-body.vhdl b/libraries/ieee2008/numeric_bit_unsigned-body.vhdl new file mode 100644 index 0000000..bf99782 --- /dev/null +++ b/libraries/ieee2008/numeric_bit_unsigned-body.vhdl @@ -0,0 +1,589 @@ +-- -------------------------------------------------------------------- +-- +-- Copyright © 2008 by IEEE. All rights reserved. +-- +-- This source file is an essential part of IEEE Std 1076-2008, +-- IEEE Standard VHDL Language Reference Manual. This source file may not be +-- copied, sold, or included with software that is sold without written +-- permission from the IEEE Standards Department. This source file may be +-- copied for individual use between licensed users. This source file is +-- provided on an AS IS basis. The IEEE disclaims ANY WARRANTY EXPRESS OR +-- IMPLIED INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR USE +-- FOR A PARTICULAR PURPOSE. The user of the source file shall indemnify +-- and hold IEEE harmless from any damages or liability arising out of the +-- use thereof. +-- +-- Title : Standard VHDL Synthesis Packages +-- : (NUMERIC_BIT_UNSIGNED package body) +-- : +-- Library : This package shall be compiled into a library +-- : symbolically named IEEE. +-- : +-- Developers: Accellera VHDL-TC, and IEEE P1076 Working Group +-- : +-- Purpose : This package defines numeric types and arithmetic functions +-- : for use with synthesis tools. Values of type BIT_VECTOR +-- : are interpreted as unsigned numbers in vector form. +-- : The leftmost bit is treated as the most significant bit. +-- : This package contains overloaded arithmetic operators on +-- : the BIT_VECTOR type. The package also contains +-- : useful type conversions functions, clock detection +-- : functions, and other utility functions. +-- : +-- : If any argument to a function is a null array, a null array +-- : is returned (exceptions, if any, are noted individually). +-- +-- Note : This package may be modified to include additional data +-- : required by tools, but it must in no way change the +-- : external interfaces or simulation behavior of the +-- : description. It is permissible to add comments and/or +-- : attributes to the package declarations, but not to change +-- : or delete any original lines of the package declaration. +-- : The package body may be changed only in accordance with +-- : the terms of Clause 16 of this standard. +-- : +-- -------------------------------------------------------------------- +-- $Revision: 1220 $ +-- $Date: 2008-04-10 17:16:09 +0930 (Thu, 10 Apr 2008) $ +-- -------------------------------------------------------------------- + +library ieee; +use ieee.numeric_bit.all; + +package body NUMERIC_BIT_UNSIGNED is + + -- Id: A.3 + function "+" (L, R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) + UNSIGNED(R)); + end function "+"; + + -- Id: A.3R + function "+"(L : BIT_VECTOR; R : BIT) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) + R); + end function "+"; + + -- Id: A.3L + function "+"(L : BIT; R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (L + UNSIGNED(R)); + end function "+"; + + -- Id: A.5 + function "+" (L : BIT_VECTOR; R : NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) + R); + end function "+"; + + -- Id: A.6 + function "+" (L : NATURAL; R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (L + UNSIGNED(R)); + end function "+"; + + --============================================================================ + + -- Id: A.9 + function "-" (L, R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) - UNSIGNED(R)); + end function "-"; + + -- Id: A.9R + function "-"(L : BIT_VECTOR; R : BIT) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) - R); + end function "-"; + + -- Id: A.9L + function "-"(L : BIT; R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (L - UNSIGNED(R)); + end function "-"; + + -- Id: A.11 + function "-" (L : BIT_VECTOR; R : NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) - R); + end function "-"; + + -- Id: A.12 + function "-" (L : NATURAL; R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (L - UNSIGNED(R)); + end function "-"; + + --============================================================================ + + -- Id: A.15 + function "*" (L, R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) * UNSIGNED(R)); + end function "*"; + + -- Id: A.17 + function "*" (L : BIT_VECTOR; R : NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) * R); + end function "*"; + + -- Id: A.18 + function "*" (L : NATURAL; R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (L * UNSIGNED(R)); + end function "*"; + + --============================================================================ + + -- Id: A.21 + function "/" (L, R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) / UNSIGNED(R)); + end function "/"; + + -- Id: A.23 + function "/" (L : BIT_VECTOR; R : NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) / R); + end function "/"; + + -- Id: A.24 + function "/" (L : NATURAL; R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (L / UNSIGNED(R)); + end function "/"; + + --============================================================================ + + -- Id: A.27 + function "rem" (L, R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) rem UNSIGNED(R)); + end function "rem"; + + -- Id: A.29 + function "rem" (L : BIT_VECTOR; R : NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) rem R); + end function "rem"; + + -- Id: A.30 + function "rem" (L : NATURAL; R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (L rem UNSIGNED(R)); + end function "rem"; + + --============================================================================ + + -- Id: A.33 + function "mod" (L, R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) mod UNSIGNED(R)); + end function "mod"; + + -- Id: A.35 + function "mod" (L : BIT_VECTOR; R : NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(L) mod R); + end function "mod"; + + -- Id: A.36 + function "mod" (L : NATURAL; R : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (L mod UNSIGNED(R)); + end function "mod"; + + --============================================================================ + -- Id: A.39 + function find_leftmost (ARG: BIT_VECTOR; Y: BIT) return INTEGER is + begin + return find_leftmost(UNSIGNED(ARG), Y); + end function find_leftmost; + + -- Id: A.41 + function find_rightmost (ARG: BIT_VECTOR; Y: BIT) return INTEGER is + begin + return find_rightmost(UNSIGNED(ARG), Y); + end function find_rightmost; + + --============================================================================ + -- Id: C.1 + function ">" (L, R : BIT_VECTOR) return BOOLEAN is + begin + return UNSIGNED(L) > UNSIGNED(R); + end function ">"; + + -- Id: C.3 + function ">" (L : NATURAL; R : BIT_VECTOR) return BOOLEAN is + begin + return L > UNSIGNED(R); + end function ">"; + + -- Id: C.5 + function ">" (L : BIT_VECTOR; R : NATURAL) return BOOLEAN is + begin + return UNSIGNED(L) > R; + end function ">"; + + --============================================================================ + -- Id: C.7 + function "<" (L, R : BIT_VECTOR) return BOOLEAN is + begin + return UNSIGNED(L) < UNSIGNED(R); + end function "<"; + + -- Id: C.9 + function "<" (L : NATURAL; R : BIT_VECTOR) return BOOLEAN is + begin + return L < UNSIGNED(R); + end function "<"; + + -- Id: C.11 + function "<" (L : BIT_VECTOR; R : NATURAL) return BOOLEAN is + begin + return UNSIGNED(L) < R; + end function "<"; + + --============================================================================ + -- Id: C.13 + function "<=" (L, R : BIT_VECTOR) return BOOLEAN is + begin + return UNSIGNED(L) <= UNSIGNED(R); + end function "<="; + + -- Id: C.15 + function "<=" (L : NATURAL; R : BIT_VECTOR) return BOOLEAN is + begin + return L <= UNSIGNED(R); + end function "<="; + + -- Id: C.17 + function "<=" (L : BIT_VECTOR; R : NATURAL) return BOOLEAN is + begin + return UNSIGNED(L) <= R; + end function "<="; + + --============================================================================ + -- Id: C.19 + function ">=" (L, R : BIT_VECTOR) return BOOLEAN is + begin + return UNSIGNED(L) >= UNSIGNED(R); + end function ">="; + + -- Id: C.21 + function ">=" (L : NATURAL; R : BIT_VECTOR) return BOOLEAN is + begin + return L >= UNSIGNED(R); + end function ">="; + + -- Id: C.23 + function ">=" (L : BIT_VECTOR; R : NATURAL) return BOOLEAN is + begin + return UNSIGNED(L) >= R; + end function ">="; + + --============================================================================ + -- Id: C.25 + function "=" (L, R : BIT_VECTOR) return BOOLEAN is + begin + return UNSIGNED(L) = UNSIGNED(R); + end function "="; + + -- Id: C.27 + function "=" (L : NATURAL; R : BIT_VECTOR) return BOOLEAN is + begin + return L = UNSIGNED(R); + end function "="; + + -- Id: C.29 + function "=" (L : BIT_VECTOR; R : NATURAL) return BOOLEAN is + begin + return UNSIGNED(L) = R; + end function "="; + + --============================================================================ + -- Id: C.31 + function "/=" (L, R : BIT_VECTOR) return BOOLEAN is + begin + return UNSIGNED(L) /= UNSIGNED(R); + end function "/="; + + -- Id: C.33 + function "/=" (L : NATURAL; R : BIT_VECTOR) return BOOLEAN is + begin + return L /= UNSIGNED(R); + end function "/="; + + -- Id: C.35 + function "/=" (L : BIT_VECTOR; R : NATURAL) return BOOLEAN is + begin + return UNSIGNED(L) /= R; + end function "/="; + + --============================================================================ + -- Id: C.37 + function MINIMUM (L, R: BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (MINIMUM(UNSIGNED(L), UNSIGNED(R))); + end function MINIMUM; + + -- Id: C.39 + function MINIMUM (L: NATURAL; R: BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (MINIMUM(L, UNSIGNED(R))); + end function MINIMUM; + + -- Id: C.41 + function MINIMUM (L: BIT_VECTOR; R: NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (MINIMUM(UNSIGNED(L), R)); + end function MINIMUM; + + --============================================================================ + -- Id: C.43 + function MAXIMUM (L, R: BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (MAXIMUM(UNSIGNED(L), UNSIGNED(R))); + end function MAXIMUM; + + -- Id: C.45 + function MAXIMUM (L: NATURAL; R: BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR (MAXIMUM(L, UNSIGNED(R))); + end function MAXIMUM; + + -- Id: C.47 + function MAXIMUM (L: BIT_VECTOR; R: NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (MAXIMUM(UNSIGNED(L), R)); + end function MAXIMUM; + + --============================================================================ + + -- Id: C.49 + function "?>" (L, R: BIT_VECTOR) return BIT is + begin + return UNSIGNED(L) ?> UNSIGNED(R); + end function "?>"; + + -- Id: C.51 + function "?>" (L: NATURAL; R: BIT_VECTOR) return BIT is + begin + return L ?> UNSIGNED(R); + end function "?>"; + + -- Id: C.53 + function "?>" (L: BIT_VECTOR; R: NATURAL) return BIT is + begin + return UNSIGNED(L) ?> R; + end function "?>"; + + --============================================================================ + + -- Id: C.55 + function "?<" (L, R: BIT_VECTOR) return BIT is + begin + return UNSIGNED(L) ?< UNSIGNED(R); + end function "?<"; + + -- Id: C.57 + function "?<" (L: NATURAL; R: BIT_VECTOR) return BIT is + begin + return L ?< UNSIGNED(R); + end function "?<"; + + -- Id: C.59 + function "?<" (L: BIT_VECTOR; R: NATURAL) return BIT is + begin + return UNSIGNED(L) ?< R; + end function "?<"; + + --============================================================================ + + -- Id: C.61 + function "?<=" (L, R: BIT_VECTOR) return BIT is + begin + return UNSIGNED(L) ?<= UNSIGNED(R); + end function "?<="; + + -- Id: C.63 + function "?<=" (L: NATURAL; R: BIT_VECTOR) return BIT is + begin + return L ?<= UNSIGNED(R); + end function "?<="; + + -- Id: C.65 + function "?<=" (L: BIT_VECTOR; R: NATURAL) return BIT is + begin + return UNSIGNED(L) ?<= R; + end function "?<="; + + --============================================================================ + + -- Id: C.67 + function "?>=" (L, R: BIT_VECTOR) return BIT is + begin + return UNSIGNED(L) ?>= UNSIGNED(R); + end function "?>="; + + -- Id: C.69 + function "?>=" (L: NATURAL; R: BIT_VECTOR) return BIT is + begin + return L ?>= UNSIGNED(R); + end function "?>="; + + -- Id: C.71 + function "?>=" (L: BIT_VECTOR; R: NATURAL) return BIT is + begin + return UNSIGNED(L) ?>= R; + end function "?>="; + + --============================================================================ + + -- Id: C.73 + function "?=" (L, R: BIT_VECTOR) return BIT is + begin + return UNSIGNED(L) ?= UNSIGNED(R); + end function "?="; + + -- Id: C.75 + function "?=" (L: NATURAL; R: BIT_VECTOR) return BIT is + begin + return L ?= UNSIGNED(R); + end function "?="; + + -- Id: C.77 + function "?=" (L: BIT_VECTOR; R: NATURAL) return BIT is + begin + return UNSIGNED(L) ?= R; + end function "?="; + + --============================================================================ + + -- Id: C.79 + function "?/=" (L, R: BIT_VECTOR) return BIT is + begin + return UNSIGNED(L) ?/= UNSIGNED(R); + end function "?/="; + + -- Id: C.81 + function "?/=" (L: NATURAL; R: BIT_VECTOR) return BIT is + begin + return L ?/= UNSIGNED(R); + end function "?/="; + + -- Id: C.83 + function "?/=" (L: BIT_VECTOR; R: NATURAL) return BIT is + begin + return UNSIGNED(L) ?/= R; + end function "?/="; + + --============================================================================ + + -- Id: S.1 + function SHIFT_LEFT (ARG : BIT_VECTOR; COUNT : NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (shift_left (ARG => UNSIGNED(ARG), + COUNT => COUNT)); + end function SHIFT_LEFT; + + -- Id: S.2 + function SHIFT_RIGHT (ARG : BIT_VECTOR; COUNT : NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (shift_right (ARG => UNSIGNED(ARG), + COUNT => COUNT)); + end function SHIFT_RIGHT; + + --============================================================================ + + -- Id: S.5 + function ROTATE_LEFT (ARG : BIT_VECTOR; COUNT : NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (rotate_left (ARG => UNSIGNED(ARG), + COUNT => COUNT)); + end function ROTATE_LEFT; + + -- Id: S.6 + function ROTATE_RIGHT (ARG : BIT_VECTOR; COUNT : NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (rotate_right (ARG => UNSIGNED(ARG), + COUNT => COUNT)); + end function ROTATE_RIGHT; + + --============================================================================ + + -- Id: S.9 + function "sll" (ARG: BIT_VECTOR; COUNT: INTEGER) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(ARG) sll COUNT); + end function "sll"; + + -- Id: S.11 + function "srl" (ARG: BIT_VECTOR; COUNT: INTEGER) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(ARG) srl COUNT); + end function "srl"; + + -- Id: S.13 + function "rol" (ARG: BIT_VECTOR; COUNT: INTEGER) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(ARG) rol COUNT); + end function "rol"; + + -- Id: S.15 + function "ror" (ARG: BIT_VECTOR; COUNT: INTEGER) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(ARG) ror COUNT); + end function "ror"; + + -- Id: S.17 + function "sla" (ARG: BIT_VECTOR; COUNT: INTEGER) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(ARG) sla COUNT); + end function "sla"; + + -- Id: S.19 + function "sra" (ARG: BIT_VECTOR; COUNT: INTEGER) return BIT_VECTOR is + begin + return BIT_VECTOR (UNSIGNED(ARG) sra COUNT); + end function "sra"; + + --============================================================================ + + -- Id: R.2 + function RESIZE (ARG : BIT_VECTOR; NEW_SIZE : NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR ( + resize (arg => UNSIGNED(ARG), + NEW_SIZE => NEW_SIZE)); + end function RESIZE; + + function RESIZE (ARG, SIZE_RES : BIT_VECTOR) return BIT_VECTOR is + begin + return BIT_VECTOR ( + RESIZE (ARG => UNSIGNED(ARG), + NEW_SIZE => SIZE_RES'length)); + end function RESIZE; + + --============================================================================ + + -- Id: D.1 + function TO_INTEGER (ARG : BIT_VECTOR) return NATURAL is + begin + return TO_INTEGER (UNSIGNED(ARG)); + end function TO_INTEGER; + + -- Id: D.3 + function To_BitVector (ARG, SIZE : NATURAL) return BIT_VECTOR is + begin + return BIT_VECTOR (TO_UNSIGNED(ARG, SIZE)); + end function To_BitVector; + + function To_BitVector (ARG : NATURAL; SIZE_RES : BIT_VECTOR) + return BIT_VECTOR is + begin + return BIT_VECTOR (TO_UNSIGNED(ARG, SIZE_RES'length)); + end function To_BitVector; + +end package body NUMERIC_BIT_UNSIGNED; -- cgit