home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Hall of Fame
/
HallofFameCDROM.cdr
/
util2
/
noblink.lzh
/
NOBLINK.DOC
< prev
Wrap
Text File
|
1985-12-09
|
2KB
|
83 lines
PROGRAM NAME - NOBLINK Version 1.0, May 1, 1985
AUTHOR - Jim Kyle (76703,762)
PURPOSE - Patches IBM's ANSI.SYS (installed copy) to eliminate the
annoying blink that occurs when using an IBM color display.
DESCRIPTION - This program overlays the text-mode scrolling portion of the
resident copy of ANSI.SYS with a new routine which waits for
retrace, then scrolls 2 lines, and repeats this process to
scroll a total of 24 lines of text. It then waits for
retrace again, and inserts the blank line 25. The video
display is never blanked, thus getting rid of the blackout
effect.
For use only with the ANSI.SYS driver furnished with version
2.10 of DOS. Should work with any other, however, if the
destination address is made to match that of the existing
code and if registers are set up the same as in 2.10.
1
0H ;color display screen segment
JZ OK ;ok to install
MOV DX,OFFSET EM2
JMP SHORT FINI
OK: MOV SI,OFFSET NEW ;set up for move
MOV DI,01C0H ;offset to put patch at
MOV CX,NEWLEN ;length of patch
PUSHF
CLD
CLI ;disable interrupts while moving!
REPZ MOVSB
POPF
MOV DX,OFFSET MSG3 ;report success
FINI: MOV AH,9
INT 21H
INT