Int 2F/AX=3901h/BL=09h

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Kingswood TSR Windows - SCROLL WINDOW

AX = 3901h
BL = 09h.

CL = scroll direction:
01h up, FFh down, 00h clear window

Return:
AX = error code (0000h if successful) SI,DI,DS,ES preserved

See Also: AH=39h/BL=00h - AX=3901h/BL=07h

Category: Runtime Support - Int 2Fh - K

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