INT 10 - VIDEO - TEXT-MODE CHARGEN - SET BLOCK SPECIFIER (PS,EGA,VGA)
AX = 1103h
BL = block specifier (see #00020)
Return: nothing
Notes: (see also AX=1110h)
This function allows dual character sets to appear on screen
simultaneously
SeeAlso: AX=1100h,AX=1101h,AX=1102h,AX=1104h,AH=1Bh,AX=CD10h
SeeAlso: MEM 0040h:0084h
Index: text mode;font|text mode;screen rows
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