Int 10 Fn 4F70  - Avance Logic - Get Adapter Information                   [V]

   AX = 4F70h

Return:    AX = 004Fh if successful
       BL = board information (see #0111)
       BH = board type???
       00h on ALG2101
       FFh otherwise

See Also: AX=4F00h

Bitfields for Avance Logic board information:
Bit(s) Description (Table 0111)
 0-1   video RAM size
   00 256K
   01 512K
   10 1M
   11 2M
 2 ???
 3 slot size???
   =0 8-bit slot
   =1 16-bit slot
 4 unused
 5 set on ALG2228/AL2301
 6-7   unused