)
Call VIDRAM entry point with:
AH = 00h get status
Return: AL = VIDRAM state (see #03081)
BL = extra RAM status (see #03082)
BH = feature flags (see #03083)
CL = current monitor (01h = mono, 80h = color)
SI = current top of memory (paragraph)
DI = segment of start of HiRAM chain
AH = 01h setup
AL = VIDRAM state (see #03081)
BL = extra RAM status (see #03082)
BH = feature flags (see #03083)
CL = monitor (01h = monochrome, 80h = color)
SI = new top of memory (paragraph)
DI = segment of start of HiRAM chain
AH = 02h get end address of VIDRAM code
Return: ES:DI -> VIDRAM partial map context (see #03084,#03085)
Return: CF set on error
CF clear if successful