FX1S Datasheet, PDF (60/480 Pages) Mitsubishi Electric Semiconductor – FX1S

ÐÅÃÈÑÒÐÛ
ÎÏÅÐÀÍÄÛ
ÏÐÈÌÅÐ
ÎÁËÀÑÒÈ ÇÍÀ×ÅÍÈÉ ×ÈÑÅË ÐÅÃÈÑÒÐΠÄÀÍÍÛÕ
Åñëè â ðåãèñòðå çàïîìèíàþòñÿ ÷èñëà â äâîè÷íîì êîäå, òî îáëàñòü çíà÷åíèé ÷èñåë
îãðàíè÷èâàåòñÿ íà áàçå ãðàíè÷íûõ âåëè÷èí ðåãèñòðîâ.
b Äåñÿòè÷íûå ÷èñëà
16 áèò: -32 768 ... +32 767 32 áèò: -2 147 483 648 ... [phone]
b Øåñòíàäöàòåðè÷íûå ÷èñëà
16 áèò: 0 ... FFFF
32 áèò: 0 ... FFFFFFFF
ÏÐÅÄÑÒÀÂËÅÍÈÅ ÎÒÐÈÖÀÒÅËÜÍÛÕ ×ÈÑÅË
Îòðèöàòåëüíûå ÷èñëà ïðåäñòàâëÿþòñÿ êàê äîïîëíèòå5ëüíûé êîä.
Ïðè îáðàçîâàíèè 2-ãî äîïîëíåíèÿ èíâåðòèðóåòñÿ äâîè÷íîå ÷èñëî (1-îå äîïîëíåíèå) è
ïðèáàâëÿåòñÿ äâîè÷íîå çíà÷åíèå ÷èñëà 1.
0101101 (äâîè÷íîå) —> +45 (äåñÿòè÷íîå)
1010010 (äâîè÷íîå) —> èíâåðñèÿ
1010011 (äâîè÷íîå) —> äîïîëíåíèå
1010011 (äâîè÷íîå) —> -45 (äåñÿòè÷íîå)
Ħ
Ðåãèñòð äàííûõ çàíîñèò çíà÷åíèå íåãàòèâíûì, åñëè â âûñøåì ðàçðÿäå áèòà (çíàê ÷èñëà) ñòîèò
÷èñëî 1.
D10 = 2
0000000000000010
D10 = 1
0000000000000001
D10 = 0
0000000000000000
D10 = -1
1111111111111111
D10 = -2
1111111111111110
D10 = -32767
1000000000000001
D10 = -32768
1000000000000000
Ðèñ.3-22. Ïðèìåðû ïðåäñòàâëåíèÿ îòðèöàòåëüíûõ ÷èñåë
C000045C
Ħ
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MITSUBISHI ELECTRIC