data<\/a> z pam\u011bti. Pro p\u0159\u00edstup ke konkr\u00e9tn\u00ed instrukci nebo dat\u016fm pot\u0159ebuje procesor zn\u00e1t jejich adresu v pam\u011bti. Absolutn\u00ed adresov\u00e1n\u00ed poskytuje procesoru zp\u016fsob, jak lokalizovat pam\u011b\u0165ov\u00e1 m\u00edsta v hierarchii pam\u011bti po\u010d\u00edta\u010de a p\u0159istupovat k nim.<\/p>\nKa\u017ed\u00e9 m\u00edsto v pam\u011bti po\u010d\u00edta\u010dov\u00e9ho syst\u00e9mu m\u00e1 jedine\u010dnou absolutn\u00ed adresu. Absolutn\u00ed adresa je bin\u00e1rn\u00ed \u010d\u00edslo, kter\u00e9 p\u0159edstavuje um\u00edst\u011bn\u00ed pam\u011b\u0165ov\u00e9 bu\u0148ky v hierarchii pam\u011bti po\u010d\u00edta\u010de. Absolutn\u00ed adresa je obvykle reprezentov\u00e1na v hexadecim\u00e1ln\u00edm z\u00e1pisu, kter\u00fd je pro \u010dlov\u011bka sn\u00e1ze \u010diteln\u00fd a srozumiteln\u00fd.<\/p>\n
P\u0159i kompilaci programu p\u0159i\u0159ad\u00ed p\u0159eklada\u010d ka\u017ed\u00e9 instrukci a datov\u00e9mu prvku v programu absolutn\u00ed adresy. Absolutn\u00ed adresa je ur\u010dena velikost\u00ed a uspo\u0159\u00e1d\u00e1n\u00edm pam\u011b\u0165ov\u00e9 hierarchie po\u010d\u00edta\u010de. To znamen\u00e1, \u017ee absolutn\u00ed adresa pam\u011b\u0165ov\u00e9ho m\u00edsta se m\u016f\u017ee na r\u016fzn\u00fdch po\u010d\u00edta\u010d\u00edch nebo dokonce na stejn\u00e9m po\u010d\u00edta\u010di li\u0161it, pokud se zm\u011bn\u00ed hierarchie pam\u011bti.<\/p>\n
Existuj\u00ed dva typy absolutn\u00edho adresov\u00e1n\u00ed: p\u0159\u00edm\u00e9 a nep\u0159\u00edm\u00e9. P\u0159\u00edm\u00e9 adresov\u00e1n\u00ed se pou\u017e\u00edv\u00e1, kdy\u017e je m\u00edsto v pam\u011bti zad\u00e1no p\u0159\u00edmo v instrukci. Nep\u0159\u00edm\u00e9 adresov\u00e1n\u00ed se pou\u017e\u00edv\u00e1, kdy\u017e je um\u00edst\u011bn\u00ed v pam\u011bti zad\u00e1no nep\u0159\u00edmo prost\u0159ednictv\u00edm ukazatele nebo indexu.<\/p>\n
Jednou z v\u00fdhod absolutn\u00edho adresov\u00e1n\u00ed je, \u017ee poskytuje rychl\u00fd a efektivn\u00ed zp\u016fsob p\u0159\u00edstupu procesoru k pam\u011b\u0165ov\u00fdm m\u00edst\u016fm. Pomoc\u00ed absolutn\u00ed adresy m\u016f\u017ee procesor rychle na\u010d\u00edtat data a instrukce z pam\u011bti. Absolutn\u00ed adresov\u00e1n\u00ed m\u00e1 v\u0161ak i n\u011bkter\u00e9 nev\u00fdhody. Jednou z hlavn\u00edch nev\u00fdhod je, \u017ee zt\u011b\u017euje p\u0159emis\u0165ov\u00e1n\u00ed program\u016f v pam\u011bti. Pokud je program p\u0159esunut na jin\u00e9 m\u00edsto v pam\u011bti, mus\u00ed b\u00fdt aktualizov\u00e1ny v\u0161echny jeho absolutn\u00ed adresy.<\/p>\n
Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee absolutn\u00ed adresov\u00e1n\u00ed je z\u00e1kladn\u00edm pojmem v informatice a programov\u00e1n\u00ed. Poskytuje procesoru zp\u016fsob, jak lokalizovat pam\u011b\u0165ov\u00e1 m\u00edsta v hierarchii pam\u011bti po\u010d\u00edta\u010de a p\u0159istupovat k nim. Absolutn\u00ed adresov\u00e1n\u00ed je nezbytn\u00e9 pro efektivn\u00ed fungov\u00e1n\u00ed po\u010d\u00edta\u010dov\u00fdch syst\u00e9m\u016f, ale m\u00e1 tak\u00e9 n\u011bkter\u00e1 omezen\u00ed, kter\u00e1 mus\u00ed program\u00e1to\u0159i a n\u00e1vrh\u00e1\u0159i syst\u00e9m\u016f vz\u00edt v \u00favahu.<\/p>","protected":false},"excerpt":{"rendered":"
Seznamte se s absolutn\u00ed adresou v informatice a programov\u00e1n\u00ed. Zjist\u011bte, jak funguje, jak\u00e9 m\u00e1 v\u00fdhody a nev\u00fdhody. V\u00edce informac\u00ed naleznete zde.<\/p>","protected":false},"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-6524","dictionary","type-dictionary","status-publish","hentry"],"acf":[],"yoast_head":"\n
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