Assembler äëÿ íà÷èíàþùèõ
Òåêñòîâûé ðåæèì - ÷àñòü 7
è ýêñïåðèìåíòû.
[Ïðèì. ïåðåâ.: ñòð. 252 òåêñòà îðèãèíàëà â ìîåé êîïèè îòñóòñòâóåò.
Î÷åâèäíî, íà íåé íàõîäèòñÿ òîëüêî íà÷àëî Ôèã. 8.12]
Microsoft (R) Macro Assembler Version 5.00 1/1/80 04:05:31
Ôèã. 8.12 Ïðîãðàììà óïðàâëåíèÿ öâåòíûì äèñïëååì Page 1-1
PAGE ,132
TITLE Ôèã. 8.12 Ïðîãðàììà óïðàâëåíèÿ öâåòíûì äèñïëååì
0000 STACK SEGMENT STACK
0000 0040[ DW 64 DUP (?)
????
]
0080 STACK ENDS
0000 DISPLAY_BUFFER SEGMENT AT 0B800H
0000 DISPLAY_START LABEL WORD
0000 DISPLAY_BUFFER ENDS
= 03D4 CRT_INDEX EQU 03D4H
= 03D5 CRT_DATA EQU 03D5H
= 03DA CRT_STATUS EQU 03DAH
= 000A CURSOR_START EQU 10 ; Ðåãèñòðû óïðàâëåíèÿ êóðñîðîì
= 000B CURSOR_END EQU 11 ; â êîíòðîëëåðå äèñïëåÿ 6845
0000 CODE SEGMENT
ASSUME CS:CODE
0000 COLOR_GRAPHICS PROC FAR
0000 1E PUSH DS ; Àäðåñ âîçâðàòà â ÄÎÑ
0001 2B C0 SUB AX, AX
0003 50 PUSH AX
Ôèã. 8.12 Ïðîãðàììà óïðàâëåíèÿ öâåòíûì äèñïëååì (íà÷àëî)
;----- Ôèã. 8.12 (à) Èçìåíåíèå êóðñîðà
0004 BA 03D4 MOV DX, CRT_INDEX
0007 B0 0A MOV AL, CURSOR_START ; Óñòàíîâêà èíäåêñíîãî ðåãèñòðà
