107 lines
3.4 KiB
VHDL
107 lines
3.4 KiB
VHDL
-- $Id: standard.vhd,v 1.1 2003/01/17 19:41:54 kumar Exp $
|
||
package STANDARD is
|
||
|
||
-- predefined enumeration types:
|
||
|
||
type BOOLEAN is (FALSE, TRUE);
|
||
|
||
type BIT is ('0', '1');
|
||
|
||
type CHARACTER is (
|
||
NUL, SOH, STX, ETX, EOT, ENQ, ACK, BEL,
|
||
BS, HT, LF, VT, FF, CR, SO, SI,
|
||
DLE, DC1, DC2, DC3, DC4, NAK, SYN, ETB,
|
||
CAN, EM, SUB, ESC, FSP, GSP, RSP, USP,
|
||
|
||
' ', '!', '"', '#', '$', '%', '&', ''',
|
||
'(', ')', '*', '+', ',', '-', '.', '/',
|
||
'0', '1', '2', '3', '4', '5', '6', '7',
|
||
'8', '9', ':', ';', '<', '=', '>', '?',
|
||
|
||
'@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
|
||
'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
|
||
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
|
||
'X', 'Y', 'Z', '[', '\', ']', '^', '_',
|
||
|
||
'`', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
|
||
'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
|
||
'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
|
||
'x', 'y', 'z', '{', '|', '}', '~', DEL,
|
||
|
||
C128, C129, C130, C131, C132, C133, C134, C135,
|
||
C136, C137, C138, C139, C140, C141, C142, C143,
|
||
C144, C145, C146, C147, C148, C149, C150, C151,
|
||
C152, C153, C154, C155, C156, C157, C158, C159,
|
||
|
||
' ', '¡', '¢', '£', '¤', '¥', '¦', '§',
|
||
'¨', '©', 'ª', '«', '¬', '', '®', '¯',
|
||
'°', '±', '²', '³', '´', 'µ', '¶', '·',
|
||
'¸', '¹', 'º', '»', '¼', '½', '¾', '¿',
|
||
'À', 'Á', 'Â', 'Ã', 'Ä', 'Å', 'Æ', 'Ç',
|
||
'È', 'É', 'Ê', 'Ë', 'Ì', 'Í', 'Î', 'Ï',
|
||
'Ð', 'Ñ', 'Ò', 'Ó', 'Ô', 'Õ', 'Ö', '×',
|
||
'Ø', 'Ù', 'Ú', 'Û', 'Ü', 'Ý', 'Þ', 'ß',
|
||
'à', 'á', 'â', 'ã', 'ä', 'å', 'æ', 'ç',
|
||
'è', 'é', 'ê', 'ë', 'ì', 'í', 'î', 'ï',
|
||
'ð', 'ñ', 'ò', 'ó', 'ô', 'õ', 'ö', '÷',
|
||
'ø', 'ù', 'ú', 'û', 'ü', 'ý', 'þ', 'ÿ' );
|
||
|
||
type SEVERITY_LEVEL is (NOTE, WARNING, ERROR, FAILURE);
|
||
|
||
type FILE_OPEN_KIND is (READ_MODE, WRITE_MODE, APPEND_MODE);
|
||
|
||
type FILE_OPEN_STATUS is (OPEN_OK, STATUS_ERROR, NAME_ERROR, MODE_ERROR);
|
||
|
||
-- predefined numeric types:
|
||
|
||
type INTEGER is range -2147483648 to 2147483647;
|
||
|
||
type REAL is range -1.7014111e+308 to 1.7014111e+308;
|
||
|
||
-- predefined type TIME:
|
||
|
||
type TIME is range -2147483647 to 2147483647
|
||
-- this declaration is for the convenience of the parser. Internally
|
||
-- the parser treats it as if the range were:
|
||
-- range -9223372036854775807 to 9223372036854775807
|
||
units
|
||
fs; -- femtosecond
|
||
ps = 1000 fs; -- picosecond
|
||
ns = 1000 ps; -- nanosecond
|
||
us = 1000 ns; -- microsecond
|
||
ms = 1000 us; -- millisecond
|
||
sec = 1000 ms; -- second
|
||
min = 60 sec; -- minute
|
||
hr = 60 min; -- hour
|
||
end units;
|
||
|
||
subtype DELAY_LENGTH is TIME range 0 fs to TIME'HIGH;
|
||
|
||
-- function that returns the current simulation time:
|
||
|
||
function NOW return DELAY_LENGTH;
|
||
|
||
-- predefined numeric subtypes:
|
||
|
||
subtype NATURAL is INTEGER range 0 to INTEGER'HIGH;
|
||
|
||
subtype POSITIVE is INTEGER range 1 to INTEGER'HIGH;
|
||
|
||
-- predefined array types:
|
||
|
||
type STRING is array (POSITIVE range <>) of CHARACTER;
|
||
|
||
type BIT_VECTOR is array (NATURAL range <>) of BIT;
|
||
|
||
attribute FOREIGN: STRING;
|
||
|
||
|
||
--VHDL 2008
|
||
type boolean_vector is array (natural range <>) of boolean;
|
||
type integer_vector is array (natural range <>) of integer;
|
||
type real_vector is array (natural range <>) of real;
|
||
type time_vector is array (natural range <>) of time;
|
||
|
||
|
||
end STANDARD;
|