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Function 0FFh   Update Real Display (text mode only)                  (TopView) 

		Update Video Buffer                 (Topview/DesQview/Taskview) 

entry   AH      0FFh 

	CX      number of sequential characters that have been modified 

	DI      offset of first character that has been modified 

	ES      segment of video buffer 

return  unknown 

note 1) DesQview supports this call, but does not require it 

     2) Avoid CX=0
file: /Techref/int/10f/ff.htm, 0KB, , updated: 1999/4/26 11:25, local time: 2024/11/26 09:39,
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Quick, Easy and CHEAP! RCL-1 RS232 Level Converter in a DB9 backshell
Ashley Roll has put together a really nice little unit here. Leave off the MAX232 and keep these handy for the few times you need true RS232!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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