FX1S Datasheet, PDF (168/480 Pages) Mitsubishi Electric Semiconductor – FX1S

ÈÍÑÒÐÓÊÖÈÈ ÏÐÎÖÅÑÑÀ ÐÀÁÎÒÛ ÏÐÎÃÐÀÌÌÛ
ÏÐÈÊËÀÄÍÛÅ ÈÍÑÒÐÓÊÖÈÈ
ÏÐÈÌÅÐ
Ïðèìåíåíèå FOR- è NEXT-èíñòðóêöèé
FOR K 4
Ðèñ. 6-17.
Ïðèìåð ïðîãðàììèðîâàíèÿ ïðè èñïîëüçî-
âàíèè FOR- è NEXT-èíñòðóêöèé
X10
P22
FOR D 0Z
CJ P 22
FOR K1X0
NEXT
NEXT
AB C
NEXT
C000018C
 ïðèìåðå çàïðîãðàììèðîâàíû òðè âõîäÿùèå äðóã â äðóãà FOR- è NEXT-óðîâíÿ
ðàçâåòâëåíèÿ.
b Îòðåçîê ïðîãðàììû Ñ îáðàáàòûâàåòñÿ ÷åòûðå ðàçà (çäåñü Ê4 êîíñòàíòà 4).  êîíöå
îáðàáîòêè ïîñëåäíèé ïðîãðàììíûé øàã âûïîëíÿåòñÿ ïîñëå òðåòüåé NEXT-èíñòðóêöèè.
b Ïðè êàæäîì èñïîëíåíèè îòðåçêà Ñ îòðåçîê ïðîãðàììû Â îáðàáàòûâàåòñÿ øåñòü ðàç,
åñëè â ðåãèñòðå äàííûõ D0Z çàïèñàíî ÷èñëî 6.
b Ïîýòîìó îòðåçîê Â îáðàáàòûâàåòñÿ 6 õ 4 = 24 ðàçà.
b Åñëè âõîä Õ10 âêëþ÷åí, òî FOR-NEXT-ïåòëÿ (îòðåçîê ïðîãðàììû) ïðîïóñêàåòñÿ (íå
îáðàáàòûâàåòñÿ) ñ ïîìîùüþ CJ-èíñòðóêöèè.
b Åñëè âõîä Õ10 âûêëþ÷åí è ñîäåðæàíèå Ê1Õ0 (áëîê Ê1 - ïåðâûõ 4 áèòà - â ñëîâå Õ0) ðàâíî 7,
òî ïðèêàæäîì âûïîëíåíåíèè îòðåçêà Â îòðåçîê ïðîãðàììû îáðàáàòûâàåòñÿ ñåìü ðàç.
b Ïîýòîìó îòðåçîê A îáðàáàòûâàåòñÿ 168 (6 õ 4 x 7) ðàç.
Ħ
6 – 26
MITSUBISHI ELECTRIC