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| author | Tristan Gingold <tgingold@free.fr> | 2020-03-13 05:40:07 +0100 |
|---|---|---|
| committer | Tristan Gingold <tgingold@free.fr> | 2020-03-13 06:30:35 +0100 |
| commit | 32e785f4108e1b4afd9a4aa20b908fb5c11cb737 (patch) | |
| tree | b84a2fe34a0d9fabbd47d4368945a1b733b6f7a8 /src/synth/synth-ieee-std_logic_1164.ads | |
| parent | 0c130072578b486ad74e19e96571c500138f81dc (diff) | |
| download | ghdl-32e785f4108e1b4afd9a4aa20b908fb5c11cb737.tar.gz ghdl-32e785f4108e1b4afd9a4aa20b908fb5c11cb737.tar.bz2 ghdl-32e785f4108e1b4afd9a4aa20b908fb5c11cb737.zip | |
synth-static_oper: handle unsigned "<".
Diffstat (limited to 'src/synth/synth-ieee-std_logic_1164.ads')
| -rw-r--r-- | src/synth/synth-ieee-std_logic_1164.ads | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/synth/synth-ieee-std_logic_1164.ads b/src/synth/synth-ieee-std_logic_1164.ads index 433825e86..a328f6dec 100644 --- a/src/synth/synth-ieee-std_logic_1164.ads +++ b/src/synth/synth-ieee-std_logic_1164.ads @@ -35,12 +35,18 @@ package Synth.Ieee.Std_Logic_1164 is '-' -- Don't care. ); + subtype X01 is Std_Ulogic range 'X' .. '1'; + -- Vector of logic state. type Std_Logic_Vector is array (Natural range <>) of Std_Ulogic; type Table_1d is array (Std_Ulogic) of Std_Ulogic; type Table_2d is array (Std_Ulogic, Std_Ulogic) of Std_Ulogic; + type Table_1d_X01 is array (Std_Ulogic) of X01; + + To_X01 : constant Table_1d_X01 := "XX01XX01X"; + And_Table : constant Table_2d := -- UX01ZWLH- ("UU0UUU0UU", -- U |