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Int 10 Fn 12 - Cirrus Logic BIOS - Inquire VGA Type [V]
AH = 12h
BL = 80h
Return: AX = controller type in bits 13-0 (see below)
bit 14: ???
bit 15: ???
BL = silicon revision number (bit 7 set if not available)
See Also: AH=12h/BL=81h,AH=12h/BL=82h,AH=12h/BL=85h,AH=12h/BL=9Ah,AH=12h/BL=A1h
Values for controller type:
0000h no extended alternate select support
0002h 510/520
0003h 610/620
0004h 5320
0005h 6410
0006h 5410
0007h 6420
0008h 6412
0010h 5401
0011h 5402
0012h 5420
0013h 5422
0014h 5424
0015h 5426
0016h 5420r1
0017h 5402r1
0018h 5428
0020h 6205/15/25
0030h 5432
0031h 5434
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