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Int 10 Fn 6F02 - Video - HP Vectra Extended BIOS - Set Monitor Info [V]
AX = 6F02h
BL = new value for extended control register (see below)
Return: nothing
Notes: this function is only valid when an HP MultiMode Video Display Adapter
is installed
the Extended Control register is at I/O address 3DDh
See Also: AX=6F01h,AX=6F03h
Bitfields for extended control register:
bit 0 screen resolution (0 = 200 lines, 1 = 400 lines)
bit 1 underline enable (if set, 'blue' bit of fg color = underl)
bit 2 font (0 = Standard-8, 1 = HP-Roman-8)
bit 3 memory disabled for CPU access
bit 4 allow access to full 32K memory instead of wrapping at 16K
bit 5 select second 16K page instead of first
bits 6,7 unused
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