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-- EMACS settings: -*-  tab-width: 2; indent-tabs-mode: t -*-
-- vim: tabstop=2:shiftwidth=2:noexpandtab
-- kate: tab-width 2; replace-tabs off; indent-width 2;
-- 
-- ============================================================================
-- Package:					Common functions and types
--
-- Authors:					Thomas B. Preusser
--									Martin Zabel
--									Patrick Lehmann
--
-- Description:
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-23 15:09:53 +0000
========= -- Copyright 2007-2014 Technische Universitaet Dresden - Germany -- Chair for VLSI-Design, Diagnostics and Architecture -- -- Licensed under the Apache License, Version 2.0 (the "License"); -- you may not use this file except in compliance with the License. -- You may obtain a copy of the License at -- -- http://www.apache.org/licenses/LICENSE-2.0 -- -- Unless required by applicable law or agreed to in writing, software -- distributed under the License is distributed on an "AS IS" BASIS, -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -- See the License for the specific language governing permissions and -- limitations under the License. -- ============================================================================ library IEEE; use IEEE.std_logic_1164.all; use IEEE.numeric_std.all; library PoC; use PoC.utils.all; use PoC.strings.all; package vectors is -- ========================================================================== -- Type declarations -- ========================================================================== -- STD_LOGIC_VECTORs subtype T_SLV_2 is STD_LOGIC_VECTOR(1 downto 0); subtype T_SLV_3 is STD_LOGIC_VECTOR(2 downto 0); subtype T_SLV_4 is STD_LOGIC_VECTOR(3 downto 0); subtype T_SLV_8 is STD_LOGIC_VECTOR(7 downto 0); subtype T_SLV_12 is STD_LOGIC_VECTOR(11 downto 0); subtype T_SLV_16 is STD_LOGIC_VECTOR(15 downto 0); subtype T_SLV_24 is STD_LOGIC_VECTOR(23 downto 0); subtype T_SLV_32 is STD_LOGIC_VECTOR(31 downto 0); subtype T_SLV_48 is STD_LOGIC_VECTOR(47 downto 0); subtype T_SLV_64 is STD_LOGIC_VECTOR(63 downto 0); subtype T_SLV_96 is STD_LOGIC_VECTOR(95 downto 0); subtype T_SLV_128 is STD_LOGIC_VECTOR(127 downto 0); subtype T_SLV_256 is STD_LOGIC_VECTOR(255 downto 0); subtype T_SLV_512 is STD_LOGIC_VECTOR(511 downto 0); -- STD_LOGIC_VECTOR_VECTORs -- type T_SLVV is array(NATURAL range <>) of STD_LOGIC_VECTOR; -- VHDL 2008 syntax - not yet supported by Xilinx type T_SLVV_2 is array(NATURAL range <>) of T_SLV_2; type T_SLVV_3 is array(NATURAL range <>) of T_SLV_3; type T_SLVV_4 is array(NATURAL range <>) of T_SLV_4; type T_SLVV_8 is array(NATURAL range <>) of T_SLV_8; type T_SLVV_12 is array(NATURAL range <>) of T_SLV_12; type T_SLVV_16 is array(NATURAL range <>) of T_SLV_16; type T_SLVV_24 is array(NATURAL range <>) of T_SLV_24; type T_SLVV_32 is array(NATURAL range <>) of T_SLV_32; type T_SLVV_48 is array(NATURAL range <>) of T_SLV_48; type T_SLVV_64 is array(NATURAL range <>) of T_SLV_64; type T_SLVV_128 is array(NATURAL range <>) of T_SLV_128; type T_SLVV_256 is array(NATURAL range <>) of T_SLV_256; type T_SLVV_512 is array(NATURAL range <>) of T_SLV_512; -- STD_LOGIC_MATRIXs type T_SLM is array(NATURAL range <>, NATURAL range <>) of STD_LOGIC; -- ATTENTION: -- 1. you MUST initialize your matrix signal with 'Z' to get correct simulation results (iSIM, vSIM, ghdl/gtkwave) -- Example: signal myMatrix : T_SLM(3 downto 0, 7 downto 0) := (others => (others => 'Z')); -- 2. Xilinx iSIM work-around: DON'T use myMatrix'range(n) for n >= 2 -- because: myMatrix'range(2) returns always myMatrix'range(1); tested with ISE/iSIM 14.2 -- USAGE NOTES: -- dimmension 1 => rows - e.g. Words -- dimmension 2 => columns - e.g. Bits/Bytes in a word -- ========================================================================== -- Function declarations -- ========================================================================== -- slicing boundary calulations function low (lenvec : T_POSVEC; index : NATURAL) return NATURAL; function high(lenvec : T_POSVEC; index : NATURAL) return NATURAL; -- Assign procedures: assign_* procedure assign_row(signal slm : out T_SLM; slv : STD_LOGIC_VECTOR; constant RowIndex : NATURAL); -- assign vector to complete row procedure assign_row(signal slm : out T_SLM; slv : STD_LOGIC_VECTOR; constant RowIndex : NATURAL; Position : NATURAL); -- assign short vector to row starting at position procedure assign_row(signal slm : out T_SLM; slv : STD_LOGIC_VECTOR; constant RowIndex : NATURAL; High : NATURAL; Low : NATURAL); -- assign short vector to row in range high:low procedure assign_col(signal slm : out T_SLM; slv : STD_LOGIC_VECTOR; constant ColIndex : NATURAL); -- assign vector to complete column -- ATTENTION: see T_SLM definition for further details and work-arounds -- Matrix to matrix conversion: slm_slice* function slm_slice(slm : T_SLM; RowIndex : NATURAL; ColIndex : NATURAL; Height : NATURAL; Width : NATURAL) return T_SLM; -- get submatrix in boundingbox RowIndex,ColIndex,Height,Width function slm_slice_rows(slm : T_SLM; High : NATURAL; Low : NATURAL) return T_SLM; -- get submatrix / all rows in RowIndex range high:low function slm_slice_cols(slm : T_SLM; High : NATURAL; Low : NATURAL) return T_SLM; -- get submatrix / all columns in ColIndex range high:low -- Matrix concatenation: slm_merge_* function slm_merge_rows(slm1 : T_SLM; slm2 : T_SLM) return T_SLM; function slm_merge_cols(slm1 : T_SLM; slm2 : T_SLM) return T_SLM; -- Matrix to vector conversion: get_* function get_col(slm : T_SLM; ColIndex : NATURAL) return STD_LOGIC_VECTOR; -- get a matrix column function get_row(slm : T_SLM; RowIndex : NATURAL) return STD_LOGIC_VECTOR; -- get a matrix row function get_row(slm : T_SLM; RowIndex : NATURAL; Length : POSITIVE) return STD_LOGIC_VECTOR; -- get a matrix row of defined length [length - 1 downto 0] function get_row(slm : T_SLM; RowIndex : NATURAL; High : NATURAL; Low : NATURAL) return STD_LOGIC_VECTOR; -- get a sub vector of a matrix row at high:low -- Convert to vector: to_slv function to_slv(slvv : T_SLVV_2) return STD_LOGIC_VECTOR; -- convert vector-vector to flatten vector function to_slv(slvv : T_SLVV_4) return STD_LOGIC_VECTOR; -- ... function to_slv(slvv : T_SLVV_8) return STD_LOGIC_VECTOR; -- ... function to_slv(slvv : T_SLVV_12) return STD_LOGIC_VECTOR; -- ... function to_slv(slvv : T_SLVV_16) return STD_LOGIC_VECTOR; -- ... function to_slv(slvv : T_SLVV_24) return STD_LOGIC_VECTOR; -- ... function to_slv(slvv : T_SLVV_32) return STD_LOGIC_VECTOR; -- ... function to_slv(slvv : T_SLVV_64) return STD_LOGIC_VECTOR; -- ... function to_slv(slvv : T_SLVV_128) return STD_LOGIC_VECTOR; -- ... function to_slv(slm : T_SLM) return STD_LOGIC_VECTOR; -- convert matrix to flatten vector -- Convert flat vector to avector-vector: to_slvv_* function to_slvv_4(slv : STD_LOGIC_VECTOR) return T_SLVV_4; -- function to_slvv_8(slv : STD_LOGIC_VECTOR) return T_SLVV_8; -- function to_slvv_12(slv : STD_LOGIC_VECTOR) return T_SLVV_12; -- function to_slvv_16(slv : STD_LOGIC_VECTOR) return T_SLVV_16; -- function to_slvv_32(slv : STD_LOGIC_VECTOR) return T_SLVV_32; -- function to_slvv_64(slv : STD_LOGIC_VECTOR) return T_SLVV_64; -- function to_slvv_128(slv : STD_LOGIC_VECTOR) return T_SLVV_128; -- function to_slvv_256(slv : STD_LOGIC_VECTOR) return T_SLVV_256; -- function to_slvv_512(slv : STD_LOGIC_VECTOR) return T_SLVV_512; -- -- Convert matrix to avector-vector: to_slvv_* function to_slvv_4(slm : T_SLM) return T_SLVV_4; -- function to_slvv_8(slm : T_SLM) return T_SLVV_8; -- function to_slvv_12(slm : T_SLM) return T_SLVV_12; -- function to_slvv_16(slm : T_SLM) return T_SLVV_16; -- function to_slvv_32(slm : T_SLM) return T_SLVV_32; -- function to_slvv_64(slm : T_SLM) return T_SLVV_64; -- function to_slvv_128(slm : T_SLM) return T_SLVV_128; -- function to_slvv_256(slm : T_SLM) return T_SLVV_256; -- function to_slvv_512(slm : T_SLM) return T_SLVV_512; -- -- Convert vector-vector to matrix: to_slm function to_slm(slv : STD_LOGIC_VECTOR; ROWS : POSITIVE; COLS : POSITIVE) return T_SLM; -- create matrix from vector function to_slm(slvv : T_SLVV_4) return T_SLM; -- create matrix from vector-vector function to_slm(slvv : T_SLVV_8) return T_SLM; -- create matrix from vector-vector function to_slm(slvv : T_SLVV_12) return T_SLM; -- create matrix from vector-vector function to_slm(slvv : T_SLVV_16) return T_SLM; -- create matrix from vector-vector function to_slm(slvv : T_SLVV_32) return T_SLM; -- create matrix from vector-vector function to_slm(slvv : T_SLVV_48) return T_SLM; -- create matrix from vector-vector function to_slm(slvv : T_SLVV_64) return T_SLM; -- create matrix from vector-vector function to_slm(slvv : T_SLVV_128) return T_SLM; -- create matrix from vector-vector function to_slm(slvv : T_SLVV_256) return T_SLM; -- create matrix from vector-vector function to_slm(slvv : T_SLVV_512) return T_SLM; -- create matrix from vector-vector -- Change vector direction function dir(slvv : T_SLVV_8) return T_SLVV_8; -- Reverse vector elements function rev(slvv : T_SLVV_4) return T_SLVV_4; function rev(slvv : T_SLVV_8) return T_SLVV_8; function rev(slvv : T_SLVV_12) return T_SLVV_12; function rev(slvv : T_SLVV_16) return T_SLVV_16; function rev(slvv : T_SLVV_32) return T_SLVV_32; function rev(slvv : T_SLVV_64) return T_SLVV_64; function rev(slvv : T_SLVV_128) return T_SLVV_128; function rev(slvv : T_SLVV_256) return T_SLVV_256; function rev(slvv : T_SLVV_512) return T_SLVV_512; -- TODO: function resize(slm : T_SLM; size : POSITIVE) return T_SLM; -- to_string function to_string(slvv : T_SLVV_8; sep : CHARACTER := ':') return STRING; function to_string(slm : T_SLM; groups : POSITIVE := 4; format : CHARACTER := 'b') return STRING; end package vectors; package body vectors is -- slicing boundary calulations -- ========================================================================== function low(lenvec : T_POSVEC; index : NATURAL) return NATURAL is variable pos : NATURAL := 0; begin for i in lenvec'low to index - 1 loop pos := pos + lenvec(i); end loop; return pos; end function; function high(lenvec : T_POSVEC; index : NATURAL) return NATURAL is variable pos : NATURAL := 0; begin for i in lenvec'low to index loop pos := pos + lenvec(i); end loop; return pos - 1; end function; -- Assign procedures: assign_* -- ========================================================================== procedure assign_row(signal slm : out T_SLM; slv : STD_LOGIC_VECTOR; constant RowIndex : NATURAL) is variable temp : STD_LOGIC_VECTOR(slm'high(2) downto slm'low(2)); -- Xilinx iSIM work-around, because 'range(2) evaluates to 'range(1); tested with ISE/iSIM 14.2 begin temp := slv; for i in temp'range loop slm(RowIndex, i) <= temp(i); end loop; end procedure; procedure assign_row(signal slm : out T_SLM; slv : STD_LOGIC_VECTOR; constant RowIndex : NATURAL; Position : NATURAL) is variable temp : STD_LOGIC_VECTOR(Position + slv'length - 1 downto Position); begin temp := slv; for i in temp'range loop slm(RowIndex, i) <= temp(i); end loop; end procedure; procedure assign_row(signal slm : out T_SLM; slv : STD_LOGIC_VECTOR; constant RowIndex : NATURAL; High : NATURAL; Low : NATURAL) is variable temp : STD_LOGIC_VECTOR(High downto Low); begin temp := slv; for i in temp'range loop slm(RowIndex, i) <= temp(i); end loop; end procedure; procedure assign_col(signal slm : out T_SLM; slv : STD_LOGIC_VECTOR; constant ColIndex : NATURAL) is variable temp : STD_LOGIC_VECTOR(slm'range(1)); begin temp := slv; for i in temp'range loop slm(i, ColIndex) <= temp(i); end loop; end procedure; -- Matrix to matrix conversion: slm_slice* -- ========================================================================== function slm_slice(slm : T_SLM; RowIndex : NATURAL; ColIndex : NATURAL; Height : NATURAL; Width : NATURAL) return T_SLM is variable Result : T_SLM(Height - 1 downto 0, Width - 1 downto 0) := (others => (others => '0')); begin for i in 0 to Height - 1 loop for j in 0 to Width - 1 loop Result(i, j) := slm(RowIndex + i, ColIndex + j); end loop; end loop; return Result; end function; function slm_slice_rows(slm : T_SLM; High : NATURAL; Low : NATURAL) return T_SLM is variable Result : T_SLM(High - Low downto 0, slm'length(2) - 1 downto 0) := (others => (others => '0')); begin for i in 0 to High - Low loop for j in 0 to slm'length(2) - 1 loop Result(i, j) := slm(Low + i, slm'low(2) + j); end loop; end loop; return Result; end function; function slm_slice_cols(slm : T_SLM; High : NATURAL; Low : NATURAL) return T_SLM is variable Result : T_SLM(slm'length(1) - 1 downto 0, High - Low downto 0) := (others => (others => '0')); begin for i in 0 to slm'length(1) - 1 loop for j in 0 to High - Low loop Result(i, j) := slm(slm'low(1) + i, Low + j); end loop; end loop; return Result; end function; -- Matrix concatenation: slm_merge_* function slm_merge_rows(slm1 : T_SLM; slm2 : T_SLM) return T_SLM is constant ROWS : POSITIVE := slm1'length(1) + slm2'length(1); constant COLUMNS : POSITIVE := slm1'length(2); variable slm : T_SLM(ROWS - 1 downto 0, COLUMNS - 1 downto 0); begin for i in slm1'range(1) loop for j in slm1'low(2) to slm1'high(2) loop slm(i, j) := slm1(i, j); end loop; end loop; for i in slm2'range(1) loop for j in slm2'low(2) to slm2'high(2) loop slm(slm1'length(1) + i, j) := slm2(i, j); end loop; end loop; return slm; end function; function slm_merge_cols(slm1 : T_SLM; slm2 : T_SLM) return T_SLM is constant ROWS : POSITIVE := slm1'length(1); constant COLUMNS : POSITIVE := slm1'length(2) + slm2'length(2); variable slm : T_SLM(ROWS - 1 downto 0, COLUMNS - 1 downto 0); begin for i in slm1'range(1) loop for j in slm1'low(2) to slm1'high(2) loop slm(i, j) := slm1(i, j); end loop; for j in slm2'low(2) to slm2'high(2) loop slm(i, slm1'length(2) + j) := slm2(i, j); end loop; end loop; return slm; end function; -- Matrix to vector conversion: get_* -- ========================================================================== -- get a matrix column function get_col(slm : T_SLM; ColIndex : NATURAL) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR(slm'range(1)); begin for i in slm'range(1) loop slv(i) := slm(i, ColIndex); end loop; return slv; end function; -- get a matrix row function get_row(slm : T_SLM; RowIndex : NATURAL) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR(slm'high(2) downto slm'low(2)); -- Xilinx iSIM work-around, because 'range(2) = 'range(1); tested with ISE/iSIM 14.2 begin for i in slv'range loop slv(i) := slm(RowIndex, i); end loop; return slv; end function; -- get a matrix row of defined length [length - 1 downto 0] function get_row(slm : T_SLM; RowIndex : NATURAL; Length : POSITIVE) return STD_LOGIC_VECTOR is begin return get_row(slm, RowIndex, (Length - 1), 0); end function; -- get a sub vector of a matrix row at high:low function get_row(slm : T_SLM; RowIndex : NATURAL; High : NATURAL; Low : NATURAL) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR(High downto Low); -- Xilinx iSIM work-around, because 'range(2) = 'range(1); tested with ISE/iSIM 14.2 begin for i in slv'range loop slv(i) := slm(RowIndex, i); end loop; return slv; end function; -- Convert to vector: to_slv -- ========================================================================== -- convert vector-vector to flatten vector function to_slv(slvv : T_SLVV_2) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR((slvv'length * 2) - 1 downto 0); begin for i in slvv'range loop slv((i * 2) + 1 downto (i * 2)) := slvv(i); end loop; return slv; end function; function to_slv(slvv : T_SLVV_4) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR((slvv'length * 4) - 1 downto 0); begin for i in slvv'range loop slv((i * 4) + 3 downto (i * 4)) := slvv(i); end loop; return slv; end function; function to_slv(slvv : T_SLVV_8) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR((slvv'length * 8) - 1 downto 0); begin for i in slvv'range loop slv((i * 8) + 7 downto (i * 8)) := slvv(i); end loop; return slv; end function; function to_slv(slvv : T_SLVV_12) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR((slvv'length * 12) - 1 downto 0); begin for i in slvv'range loop slv((i * 12) + 11 downto (i * 12)) := slvv(i); end loop; return slv; end function; function to_slv(slvv : T_SLVV_16) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR((slvv'length * 16) - 1 downto 0); begin for i in slvv'range loop slv((i * 16) + 15 downto (i * 16)) := slvv(i); end loop; return slv; end function; function to_slv(slvv : T_SLVV_24) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR((slvv'length * 24) - 1 downto 0); begin for i in slvv'range loop slv((i * 24) + 23 downto (i * 24)) := slvv(i); end loop; return slv; end function; function to_slv(slvv : T_SLVV_32) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR((slvv'length * 32) - 1 downto 0); begin for i in slvv'range loop slv((i * 32) + 31 downto (i * 32)) := slvv(i); end loop; return slv; end function; function to_slv(slvv : T_SLVV_64) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR((slvv'length * 64) - 1 downto 0); begin for i in slvv'range loop slv((i * 64) + 63 downto (i * 64)) := slvv(i); end loop; return slv; end function; function to_slv(slvv : T_SLVV_128) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR((slvv'length * 128) - 1 downto 0); begin for i in slvv'range loop slv((i * 128) + 127 downto (i * 128)) := slvv(i); end loop; return slv; end function; -- convert matrix to flatten vector function to_slv(slm : T_SLM) return STD_LOGIC_VECTOR is variable slv : STD_LOGIC_VECTOR((slm'length(1) * slm'length(2)) - 1 downto 0); begin for i in slm'range(1) loop for j in slm'high(2) downto slm'low(2) loop -- Xilinx iSIM work-around, because 'range(2) evaluates to 'range(1); tested with ISE/iSIM 14.2 slv((i * slm'length(2)) + j) := slm(i, j); end loop; end loop; return slv; end function; -- Convert flat vector to a vector-vector: to_slvv_* -- ========================================================================== -- create vector-vector from vector (4 bit) function to_slvv_4(slv : STD_LOGIC_VECTOR) return T_SLVV_4 is variable Result : T_SLVV_4((slv'length / 4) - 1 downto 0); begin if ((slv'length mod 4) /= 0) then report "to_slvv_4: width mismatch - slv'length is no multiple of 4 (slv'length=" & INTEGER'image(slv'length) & ")" severity FAILURE; end if; for i in Result'range loop Result(i) := slv((i * 4) + 3 downto (i * 4)); end loop; return Result; end function; -- create vector-vector from vector (8 bit) function to_slvv_8(slv : STD_LOGIC_VECTOR) return T_SLVV_8 is variable Result : T_SLVV_8((slv'length / 8) - 1 downto 0); begin if ((slv'length mod 8) /= 0) then report "to_slvv_8: width mismatch - slv'length is no multiple of 8 (slv'length=" & INTEGER'image(slv'length) & ")" severity FAILURE; end if; for i in Result'range loop Result(i) := slv((i * 8) + 7 downto (i * 8)); end loop; return Result; end function; -- create vector-vector from vector (12 bit) function to_slvv_12(slv : STD_LOGIC_VECTOR) return T_SLVV_12 is variable Result : T_SLVV_12((slv'length / 12) - 1 downto 0); begin if ((slv'length mod 12) /= 0) then report "to_slvv_12: width mismatch - slv'length is no multiple of 12 (slv'length=" & INTEGER'image(slv'length) & ")" severity FAILURE; end if; for i in Result'range loop Result(i) := slv((i * 12) + 11 downto (i * 12)); end loop; return Result; end function; -- create vector-vector from vector (16 bit) function to_slvv_16(slv : STD_LOGIC_VECTOR) return T_SLVV_16 is variable Result : T_SLVV_16((slv'length / 16) - 1 downto 0); begin if ((slv'length mod 16) /= 0) then report "to_slvv_16: width mismatch - slv'length is no multiple of 16 (slv'length=" & INTEGER'image(slv'length) & ")" severity FAILURE; end if; for i in Result'range loop Result(i) := slv((i * 16) + 15 downto (i * 16)); end loop; return Result; end function; -- create vector-vector from vector (32 bit) function to_slvv_32(slv : STD_LOGIC_VECTOR) return T_SLVV_32 is variable Result : T_SLVV_32((slv'length / 32) - 1 downto 0); begin if ((slv'length mod 32) /= 0) then report "to_slvv_32: width mismatch - slv'length is no multiple of 32 (slv'length=" & INTEGER'image(slv'length) & ")" severity FAILURE; end if; for i in Result'range loop Result(i) := slv((i * 32) + 31 downto (i * 32)); end loop; return Result; end function; -- create vector-vector from vector (64 bit) function to_slvv_64(slv : STD_LOGIC_VECTOR) return T_SLVV_64 is variable Result : T_SLVV_64((slv'length / 64) - 1 downto 0); begin if ((slv'length mod 64) /= 0) then report "to_slvv_64: width mismatch - slv'length is no multiple of 64 (slv'length=" & INTEGER'image(slv'length) & ")" severity FAILURE; end if; for i in Result'range loop Result(i) := slv((i * 64) + 63 downto (i * 64)); end loop; return Result; end function; -- create vector-vector from vector (128 bit) function to_slvv_128(slv : STD_LOGIC_VECTOR) return T_SLVV_128 is variable Result : T_SLVV_128((slv'length / 128) - 1 downto 0); begin if ((slv'length mod 128) /= 0) then report "to_slvv_128: width mismatch - slv'length is no multiple of 128 (slv'length=" & INTEGER'image(slv'length) & ")" severity FAILURE; end if; for i in Result'range loop Result(i) := slv((i * 128) + 127 downto (i * 128)); end loop; return Result; end function; -- create vector-vector from vector (256 bit) function to_slvv_256(slv : STD_LOGIC_VECTOR) return T_SLVV_256 is variable Result : T_SLVV_256((slv'length / 256) - 1 downto 0); begin if ((slv'length mod 256) /= 0) then report "to_slvv_256: width mismatch - slv'length is no multiple of 256 (slv'length=" & INTEGER'image(slv'length) & ")" severity FAILURE; end if; for i in Result'range loop Result(i) := slv((i * 256) + 255 downto (i * 256)); end loop; return Result; end function; -- create vector-vector from vector (512 bit) function to_slvv_512(slv : STD_LOGIC_VECTOR) return T_SLVV_512 is variable Result : T_SLVV_512((slv'length / 512) - 1 downto 0); begin if ((slv'length mod 512) /= 0) then report "to_slvv_512: width mismatch - slv'length is no multiple of 512 (slv'length=" & INTEGER'image(slv'length) & ")" severity FAILURE; end if; for i in Result'range loop Result(i) := slv((i * 512) + 511 downto (i * 512)); end loop; return Result; end function; -- Convert matrix to avector-vector: to_slvv_* -- ========================================================================== -- create vector-vector from matrix (4 bit) function to_slvv_4(slm : T_SLM) return T_SLVV_4 is variable Result : T_SLVV_4(slm'range(1)); begin if (slm'length(2) /= 4) then report "to_slvv_4: type mismatch - slm'length(2)=" & INTEGER'image(slm'length(2)) severity FAILURE; end if; for i in slm'range(1) loop Result(i) := get_row(slm, i); end loop; return Result; end function; -- create vector-vector from matrix (8 bit) function to_slvv_8(slm : T_SLM) return T_SLVV_8 is variable Result : T_SLVV_8(slm'range(1)); begin if (slm'length(2) /= 8) then report "to_slvv_8: type mismatch - slm'length(2)=" & INTEGER'image(slm'length(2)) severity FAILURE; end if; for i in slm'range(1) loop Result(i) := get_row(slm, i); end loop; return Result; end function; -- create vector-vector from matrix (12 bit) function to_slvv_12(slm : T_SLM) return T_SLVV_12 is variable Result : T_SLVV_12(slm'range(1)); begin if (slm'length(2) /= 12) then report "to_slvv_12: type mismatch - slm'length(2)=" & INTEGER'image(slm'length(2)) severity FAILURE; end if; for i in slm'range(1) loop Result(i) := get_row(slm, i); end loop; return Result; end function; -- create vector-vector from matrix (16 bit) function to_slvv_16(slm : T_SLM) return T_SLVV_16 is variable Result : T_SLVV_16(slm'range(1)); begin if (slm'length(2) /= 16) then report "to_slvv_16: type mismatch - slm'length(2)=" & INTEGER'image(slm'length(2)) severity FAILURE; end if; for i in slm'range(1) loop Result(i) := get_row(slm, i); end loop; return Result; end function; -- create vector-vector from matrix (32 bit) function to_slvv_32(slm : T_SLM) return T_SLVV_32 is variable Result : T_SLVV_32(slm'range(1)); begin if (slm'length(2) /= 32) then report "to_slvv_32: type mismatch - slm'length(2)=" & INTEGER'image(slm'length(2)) severity FAILURE; end if; for i in slm'range(1) loop Result(i) := get_row(slm, i); end loop; return Result; end function; -- create vector-vector from matrix (64 bit) function to_slvv_64(slm : T_SLM) return T_SLVV_64 is variable Result : T_SLVV_64(slm'range(1)); begin if (slm'length(2) /= 64) then report "to_slvv_64: type mismatch - slm'length(2)=" & INTEGER'image(slm'length(2)) severity FAILURE; end if; for i in slm'range(1) loop Result(i) := get_row(slm, i); end loop; return Result; end function; -- create vector-vector from matrix (128 bit) function to_slvv_128(slm : T_SLM) return T_SLVV_128 is variable Result : T_SLVV_128(slm'range(1)); begin if (slm'length(2) /= 128) then report "to_slvv_128: type mismatch - slm'length(2)=" & INTEGER'image(slm'length(2)) severity FAILURE; end if; for i in slm'range(1) loop Result(i) := get_row(slm, i); end loop; return Result; end function; -- create vector-vector from matrix (256 bit) function to_slvv_256(slm : T_SLM) return T_SLVV_256 is variable Result : T_SLVV_256(slm'range); begin if (slm'length(2) /= 256) then report "to_slvv_256: type mismatch - slm'length(2)=" & INTEGER'image(slm'length(2)) severity FAILURE; end if; for i in slm'range loop Result(i) := get_row(slm, i); end loop; return Result; end function; -- create vector-vector from matrix (512 bit) function to_slvv_512(slm : T_SLM) return T_SLVV_512 is variable Result : T_SLVV_512(slm'range(1)); begin if (slm'length(2) /= 512) then report "to_slvv_512: type mismatch - slm'length(2)=" & INTEGER'image(slm'length(2)) severity FAILURE; end if; for i in slm'range(1) loop Result(i) := get_row(slm, i); end loop; return Result; end function; -- Convert vector-vector to matrix: to_slm -- ========================================================================== -- create matrix from vector function to_slm(slv : STD_LOGIC_VECTOR; ROWS : POSITIVE; COLS : POSITIVE) return T_SLM is variable slm : T_SLM(ROWS - 1 downto 0, COLS - 1 downto 0); begin for i in 0 to ROWS - 1 loop for j in 0 to COLS - 1 loop slm(i, j) := slv((i * COLS) + j); end loop; end loop; return slm; end function; -- create matrix from vector-vector function to_slm(slvv : T_SLVV_4) return T_SLM is variable slm : T_SLM(slvv'range, 3 downto 0); begin for i in slvv'range loop for j in T_SLV_4'range loop slm(i, j) := slvv(i)(j); end loop; end loop; return slm; end function; function to_slm(slvv : T_SLVV_8) return T_SLM is -- variable test : STD_LOGIC_VECTOR(T_SLV_8'range); -- variable slm : T_SLM(slvv'range, test'range); -- BUG: iSIM 14.5 cascaded 'range accesses let iSIM break down -- variable slm : T_SLM(slvv'range, T_SLV_8'range); -- BUG: iSIM 14.5 allocates 9 bits in dimmension 2 variable slm : T_SLM(slvv'range, 7 downto 0); begin -- report "slvv: slvv.length=" & INTEGER'image(slvv'length) & " slm.dim0.length=" & INTEGER'image(slm'length(1)) & " slm.dim1.length=" & INTEGER'image(slm'length(2)) severity NOTE; -- report "T_SLV_8: .length=" & INTEGER'image(T_SLV_8'length) & " .high=" & INTEGER'image(T_SLV_8'high) & " .low=" & INTEGER'image(T_SLV_8'low) severity NOTE; -- report "test: test.length=" & INTEGER'image(test'length) & " .high=" & INTEGER'image(test'high) & " .low=" & INTEGER'image(test'low) severity NOTE; for i in slvv'range loop for j in T_SLV_8'range loop slm(i, j) := slvv(i)(j); end loop; end loop; return slm; end function; function to_slm(slvv : T_SLVV_12) return T_SLM is variable slm : T_SLM(slvv'range, 11 downto 0); begin for i in slvv'range loop for j in T_SLV_12'range loop slm(i, j) := slvv(i)(j); end loop; end loop; return slm; end function; function to_slm(slvv : T_SLVV_16) return T_SLM is variable slm : T_SLM(slvv'range, 15 downto 0); begin for i in slvv'range loop for j in T_SLV_16'range loop slm(i, j) := slvv(i)(j); end loop; end loop; return slm; end function; function to_slm(slvv : T_SLVV_32) return T_SLM is variable slm : T_SLM(slvv'range, 31 downto 0); begin for i in slvv'range loop for j in T_SLV_32'range loop slm(i, j) := slvv(i)(j); end loop; end loop; return slm; end function; function to_slm(slvv : T_SLVV_48) return T_SLM is variable slm : T_SLM(slvv'range, 47 downto 0); begin for i in slvv'range loop for j in T_SLV_48'range loop slm(i, j) := slvv(i)(j); end loop; end loop; return slm; end function; function to_slm(slvv : T_SLVV_64) return T_SLM is variable slm : T_SLM(slvv'range, 63 downto 0); begin for i in slvv'range loop for j in T_SLV_64'range loop slm(i, j) := slvv(i)(j); end loop; end loop; return slm; end function; function to_slm(slvv : T_SLVV_128) return T_SLM is variable slm : T_SLM(slvv'range, 127 downto 0); begin for i in slvv'range loop for j in T_SLV_128'range loop slm(i, j) := slvv(i)(j); end loop; end loop; return slm; end function; function to_slm(slvv : T_SLVV_256) return T_SLM is variable slm : T_SLM(slvv'range, 255 downto 0); begin for i in slvv'range loop for j in T_SLV_256'range loop slm(i, j) := slvv(i)(j); end loop; end loop; return slm; end function; function to_slm(slvv : T_SLVV_512) return T_SLM is variable slm : T_SLM(slvv'range, 511 downto 0); begin for i in slvv'range loop for j in T_SLV_512'range loop slm(i, j) := slvv(i)(j); end loop; end loop; return slm; end function; -- Change vector direction -- ========================================================================== function dir(slvv : T_SLVV_8) return T_SLVV_8 is variable Result : T_SLVV_8(slvv'reverse_range); begin Result := slvv; return Result; end function; -- Reverse vector elements function rev(slvv : T_SLVV_4) return T_SLVV_4 is variable Result : T_SLVV_4(slvv'range); begin for i in slvv'low to slvv'high loop Result(slvv'high - i) := slvv(i); end loop; return Result; end function; function rev(slvv : T_SLVV_8) return T_SLVV_8 is variable Result : T_SLVV_8(slvv'range); begin for i in slvv'low to slvv'high loop Result(slvv'high - i) := slvv(i); end loop; return Result; end function; function rev(slvv : T_SLVV_12) return T_SLVV_12 is variable Result : T_SLVV_12(slvv'range); begin for i in slvv'low to slvv'high loop Result(slvv'high - i) := slvv(i); end loop; return Result; end function; function rev(slvv : T_SLVV_16) return T_SLVV_16 is variable Result : T_SLVV_16(slvv'range); begin for i in slvv'low to slvv'high loop Result(slvv'high - i) := slvv(i); end loop; return Result; end function; function rev(slvv : T_SLVV_32) return T_SLVV_32 is variable Result : T_SLVV_32(slvv'range); begin for i in slvv'low to slvv'high loop Result(slvv'high - i) := slvv(i); end loop; return Result; end function; function rev(slvv : T_SLVV_64) return T_SLVV_64 is variable Result : T_SLVV_64(slvv'range); begin for i in slvv'low to slvv'high loop Result(slvv'high - i) := slvv(i); end loop; return Result; end function; function rev(slvv : T_SLVV_128) return T_SLVV_128 is variable Result : T_SLVV_128(slvv'range); begin for i in slvv'low to slvv'high loop Result(slvv'high - i) := slvv(i); end loop; return Result; end function; function rev(slvv : T_SLVV_256) return T_SLVV_256 is variable Result : T_SLVV_256(slvv'range); begin for i in slvv'low to slvv'high loop Result(slvv'high - i) := slvv(i); end loop; return Result; end function; function rev(slvv : T_SLVV_512) return T_SLVV_512 is variable Result : T_SLVV_512(slvv'range); begin for i in slvv'low to slvv'high loop Result(slvv'high - i) := slvv(i); end loop; return Result; end function; -- Resize functions -- ========================================================================== -- Resizes the vector to the specified length. Input vectors larger than the specified size are truncated from the left side. Smaller input -- vectors are extended on the left by the provided fill value (default: '0'). Use the resize functions of the numeric_std package for -- value-preserving resizes of the signed and unsigned data types. function resize(slm : T_SLM; size : POSITIVE) return T_SLM is variable Result : T_SLM(size - 1 downto 0, slm'high(2) downto slm'low(2)) := (others => (others => '0')); begin for i in slm'range(1) loop for j in slm'high(2) downto slm'low(2) loop Result(i, j) := slm(i, j); end loop; end loop; return Result; end function; function to_string(slvv : T_SLVV_8; sep : CHARACTER := ':') return STRING is constant hex_len : POSITIVE := ite((sep = C_POC_NUL), (slvv'length * 2), (slvv'length * 3) - 1); variable Result : STRING(1 to hex_len) := (others => sep); variable pos : POSITIVE := 1; begin for i in slvv'range loop Result(pos to pos + 1) := to_string(slvv(i), 'h'); pos := pos + ite((sep = C_POC_NUL), 2, 3); end loop; return Result; end function; function to_string_bin(slm : T_SLM; groups : POSITIVE := 4; format : CHARACTER := 'h') return STRING is variable PerLineOverheader : POSITIVE := div_ceil(slm'length(2), groups); variable Result : STRING(1 to (slm'length(1) * (slm'length(2) + PerLineOverheader)) + 10); variable Writer : POSITIVE; variable GroupCounter : NATURAL; begin Result := (others => C_POC_NUL); Result(1) := LF; Writer := 2; GroupCounter := 0; for i in slm'low(1) to slm'high(1) loop for j in slm'high(2) downto slm'low(2) loop Result(Writer) := to_char(slm(i, j)); Writer := Writer + 1; GroupCounter := GroupCounter + 1; if (GroupCounter = groups) then Result(Writer) := ' '; Writer := Writer + 1; GroupCounter := 0; end if; end loop; Result(Writer - 1) := LF; GroupCounter := 0; end loop; return str_trim(Result); end function; function to_string(slm : T_SLM; groups : POSITIVE := 4; format : CHARACTER := 'b') return STRING is begin if (format = 'b') then return to_string_bin(slm, groups); else return "Format not supported."; end if; end function; end package body;
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-23 15:09:53 +0000