Assembler äëÿ íà÷èíàþùèõ
â ïðèìåðå ïðîãðàììà ìîæåò îáëåã÷èòü
01D8 B0 0D MOV AL,0DH
01DA EE OUT DX,AL ; Ïåðåäà÷à ñèìâîëà èç ïîðòà â ïðèíòåð
01DB B0 0C MOV AL,0CH
01DD EE OUT DX,AL
01DE NO_PRINT:
01DE 1F POP DS
01DF 5A POP DX
01E0 EB C2 JMP TIMER_RETURN ; Âîçâðàò ÷åðåç ïîäïðîãðàììó óïðàâëåíèÿ
01E2 TIMER_HANDLER ENDP ; òàéìåðîì
01E2 ADVANCE_POINTER PROC NEAR
01E2 43 INC BX ; Ñäâèã óêàçàòåëÿ
Ôèã. 10.1 Áóôåð ïå÷àòè (ïðîäîëæåíèå)
01E3 81 FB 28FE R CMP BX,offset BUFFER_END
01E7 75 04 JNE ADVANCE_RETURN ; Ïðîâåðêà íà êîíåö öèêëè÷åñêîãî áóôåðà
01E9 8D 1E 01EE R LEA BX,BUFFER_START ; Óñòàíîâêà óêàçàòåëÿ íà íà÷àëî áóôåðà
01ED ADVANCE_RETURN:
01ED C3 RET
01EE ADVANCE_POINTER ENDP
01EE BUFFER_START LABEL BYTE
01EE 2710[ DB 10000 DUP (?)
??
]
28FE BUFFER_END LABEL BYTE
28FE CODE ENDS
END
Ôèã. 10.1 Áóôåð ïå÷àòè (ïðîäîëæåíèå)
Ïðèâåäåííàÿ â ïðèìåðå ïðîãðàììà ìîæåò îáëåã÷èòü ðåøåíèå çàäà÷è.
Êîíå÷íî, ýòî íå îáîéäåòñÿ âàì äàðîì. Ïðîãðàììà îòâîäèò ïîä áóôåð
ïå÷àòè íåêîòîðóþ îáëàñòü ïàìÿòè, êîòðàÿ áóäåò ïîñòîÿííî çà íèì
Forekc.ru
Ðåôåðàòû, äèïëîìû, êóðñîâûå, âûïóñêíûå è êâàëèôèêàöèîííûå ðàáîòû, äèññåðòàöèè, ó÷åáíèêè, ó÷åáíûå ïîñîáèÿ, ëåêöèè, ìåòîäè÷åñêèå ïîñîáèÿ è ðåêîìåíäàöèè, ïðîãðàììû è êóðñû îáó÷åíèÿ, ïóáëèêàöèè èç ïðîôèëüíûõ èçäàíèé