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Warning: strtotime() [function.strtotime]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /var/www/web1232/html/Vhdl-Code/libraries/joomla/utilities/date.php on line 56
Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /var/www/web1232/html/Vhdl-Code/libraries/joomla/utilities/date.php on line 198
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Warning: mktime() [function.mktime]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /var/www/web1232/html/Vhdl-Code/libraries/joomla/utilities/date.php on line 117 Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /var/www/web1232/html/Vhdl-Code/libraries/joomla/utilities/date.php on line 245 Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /var/www/web1232/html/Vhdl-Code/libraries/joomla/utilities/date.php on line 249 Warning: strftime() [function.strftime]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /var/www/web1232/html/Vhdl-Code/libraries/joomla/utilities/date.php on line 250 Samstag, den 24. Juli 2010 um 20:27 Uhr |
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Header in VHDL Im Header werden die Definitionen festgelegt, die für folgende Schaltungsbeschreibungen gelten sollen. Diese Definition ist eigentlich nur für die direkt folgende VHDL-Schaltung relevant. Deswegen müsstest du den VHDL-Header vor der nächsten Schaltung in derselben Datei wiederhohlen, da du aber in jeder Datei nur eine Schaltung beschreiben sollst, ergibt sich das Problem für dich nicht.
Beispiele
library ieee; -- Die Benutzte Bibliothek use ieeee.std_logic_1164.all; -- Definition der Werte und Grundtypen use ieeee.std_logic_unsigned.all; -- Definition einer unsigned Arithmetik
Sofern du keinerlei Arithmetik auf Dualzahlen verwendest, kannst die dritte Zeile weglassen. Diese Arithmetik ist nur auf Vektoren vom Typ std_logic anwendbar.
Die verwendete Arithmetik funktioniert mit allen Standard-Syntheseprogrammen. Der Header in VHDL ist mit den include-Anweisungen zu Beginn eines Programms in „C“ vergleichbar.
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Warning: mktime() [function.mktime]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /var/www/web1232/html/Vhdl-Code/libraries/joomla/utilities/date.php on line 117 Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /var/www/web1232/html/Vhdl-Code/libraries/joomla/utilities/date.php on line 245 Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /var/www/web1232/html/Vhdl-Code/libraries/joomla/utilities/date.php on line 249 Warning: strftime() [function.strftime]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead in /var/www/web1232/html/Vhdl-Code/libraries/joomla/utilities/date.php on line 250 Zuletzt aktualisiert am Samstag, den 24. Juli 2010 um 20:28 Uhr |