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Int 10 Fn 5F03 - Chips & Technologies Extended BIOS - Set Power-on Video [V]
AX = 5F03h
BL = configuration
00h power-up display mode
CL = display mode
CH = mode
bits 1-0 scanlines
00: 200
01: 350
10: 400
bit 7 persistence (0 reset on next boot, 1 until changed)
01h power-up emulation mode
CL = emulation mode (see AX=5F01h"Chips")
CH = permanence (00h reset after next boot, 01h until changed)
Return: AL = 5Fh if function supported
AH = status
00h unsuccessful
01h successful
See Also: AX=5F02h,AX=5F03h/BL=01h,AX=5F90h
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