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author | Tristan Gingold | 2014-09-05 06:05:19 +0200 |
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committer | Tristan Gingold | 2014-09-05 06:05:19 +0200 |
commit | fe6ff5794545ce9f7d00985b55cf9d5b18725ea0 (patch) | |
tree | 9a61d61c8981ac292c27a94a2cf5c9aa1bf62143 /translate/grt/grt-std_logic_1164.ads | |
parent | 6d8c5299f20b4cd8f1e049f7eea454c00a3102b7 (diff) | |
download | ghdl-fe6ff5794545ce9f7d00985b55cf9d5b18725ea0.tar.gz ghdl-fe6ff5794545ce9f7d00985b55cf9d5b18725ea0.tar.bz2 ghdl-fe6ff5794545ce9f7d00985b55cf9d5b18725ea0.zip |
First run (using mcode) of OSVVM_2014_01.
Diffstat (limited to 'translate/grt/grt-std_logic_1164.ads')
-rw-r--r-- | translate/grt/grt-std_logic_1164.ads | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/translate/grt/grt-std_logic_1164.ads b/translate/grt/grt-std_logic_1164.ads new file mode 100644 index 0000000..d6b1b7d --- /dev/null +++ b/translate/grt/grt-std_logic_1164.ads @@ -0,0 +1,107 @@ +-- GHDL Run Time (GRT) std_logic_1664 subprograms. +-- Copyright (C) 2014 Tristan Gingold +-- +-- GHDL is free software; you can redistribute it and/or modify it under +-- the terms of the GNU General Public License as published by the Free +-- Software Foundation; either version 2, or (at your option) any later +-- version. +-- +-- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY +-- WARRANTY; without even the implied warranty of MERCHANTABILITY or +-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +-- for more details. +-- +-- You should have received a copy of the GNU General Public License +-- along with GCC; see the file COPYING. If not, write to the Free +-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA +-- 02111-1307, USA. +-- +-- As a special exception, if other files instantiate generics from this +-- unit, or you link this unit with other files to produce an executable, +-- this unit does not by itself cause the resulting executable to be +-- covered by the GNU General Public License. This exception does not +-- however invalidate any other reasons why the executable file might be +-- covered by the GNU Public License. + +with Grt.Types; use Grt.Types; + +package Grt.Std_Logic_1164 is + type Std_Ulogic is ('U', 'X', '0', '1', 'Z', 'W','L', 'H', '-'); + + type Stdlogic_Table_2d is array (Std_Ulogic, Std_Ulogic) of Std_Ulogic; + type Stdlogic_Table_1d is array (Std_Ulogic) of Std_Ulogic; + + -- LRM08 9.2.3 Relational operators + Match_Eq_Table : constant Stdlogic_Table_2d := + --UX01ZWLH- + ("UUUUUUUU1", + "UXXXXXXX1", + "UX10XX101", + "UX01XX011", + "UXXXXXXX1", + "UXXXXXXX1", + "UX10XX101", + "UX01XX011", + "111111111"); + + Match_Lt_Table : constant Stdlogic_Table_2d := + --UX01ZWLH- + ("UUUUUUUUX", + "UXXXXXXXX", + "UX01XX01X", + "UX00XX00X", + "UXXXXXXXX", + "UXXXXXXXX", + "UX01XX01X", + "UX00XX00X", + "XXXXXXXXX"); + + And_Table : constant Stdlogic_Table_2d := + --UX01ZWLH- + ("UU0UUU0UX", -- U + "UX0XXX0XX", -- X + "000000000", -- 0 + "UX01XX01X", -- 1 + "UX0XXX0XX", -- Z + "UX0XXX0XX", -- W + "000000000", -- L + "UX01XX01X", -- H + "UX0XXX0XX"); -- - + + Or_Table : constant Stdlogic_Table_2d := + --UX01ZWLH- + ("UUU1UUU1U", -- U + "UXX1XXX1X", -- X + "UX01XX01X", -- 0 + "111111111", -- 1 + "UXX1XXX1X", -- Z + "UXX1XXX1X", -- W + "UX01XX01X", -- L + "111111111", -- H + "UXX1XXX1X"); -- - + + Xor_Table : constant Stdlogic_Table_2d := + --UX01ZWLH- + ("UUUUUUUUU", -- U + "UXXXXXXXX", -- X + "UX01XX01X", -- 0 + "UX10XX10X", -- 1 + "UXXXXXXXX", -- Z + "UXXXXXXXX", -- W + "UX01XX01X", -- L + "UX10XX10X", -- H + "UXXXXXXXX"); -- - + + Not_Table : constant Stdlogic_Table_1d := "UX10XX10X"; + + function Ghdl_Std_Ulogic_Match_Eq (L, R : Ghdl_E8) return Ghdl_E8; + function Ghdl_Std_Ulogic_Match_Ne (L, R : Ghdl_E8) return Ghdl_E8; + function Ghdl_Std_Ulogic_Match_Lt (L, R : Ghdl_E8) return Ghdl_E8; + function Ghdl_Std_Ulogic_Match_Le (L, R : Ghdl_E8) return Ghdl_E8; + -- For Gt and Ge, use Lt and Le with swapped parameters. +private + pragma Export (C, Ghdl_Std_Ulogic_Match_Eq, "__ghdl_std_ulogic_match_eq"); + pragma Export (C, Ghdl_Std_Ulogic_Match_Ne, "__ghdl_std_ulogic_match_ne"); + pragma Export (C, Ghdl_Std_Ulogic_Match_Lt, "__ghdl_std_ulogic_match_lt"); + pragma Export (C, Ghdl_Std_Ulogic_Match_Le, "__ghdl_std_ulogic_match_le"); +end Grt.Std_Logic_1164; |