IBM 770 manual Capability, B-20, Get Refresh Rate

Get Refresh Rate	Capability
Input Field
Major Function Number -		ðð
Minor Function Number -		ð9
Parameter 1	-	mode
		= ððxxh - VGA modes
		(Bits ð-7 are ignored)
		= ð1ðð -	64ðx4ððx256
		= ð1ð1 -	64ðx48ðx256
		= ð1ð2 -	8ððx6ððx16
		= ð1ð3 -	8ððx6ððx256
		= ð1ð4 -	1ð24x768x16
		= ð1ð5 -	1ð24x768x256
		= ð1ð6 -	128ðx1ð24x16
		= ð1ð7 -	128ðx1ð24x256
		= ð1ð9 -	1ð56x35ðx16
		= ð1ðA -	1ð56x473x16
		= ð1ðC -	1ð56x48ðx16
		= ð11ð -	64ðx48ðx32K
		= ð111 -	64ðx48ðx64K
		= ð112 -	64ðx48ðx16M
		= ð113 -	8ððx6ððx32K
		= ð114 -	8ððx6ððx64K
		= ð115 -	8ððx6ððx16M
		= ð116 -	1ð24x768x32K
		= ð117 -	1ð24x768x64K
		= ð118 -	1ð24x768x16M
		= ð119 -	128ðx1ð24x32K
		= ð11A -	128ðx1ð24x64K
		= ð11B -	128ðx1ð24x16M
		= ðAðð -	16ððx12ððx16
		= ðAð1 -	16ððx12ððx256
		= ðAð2 -	16ððx12ððx32K
		= ðAð3 -	16ððx12ððx64K
		= ðAð4 -	16ððx12ððx16M
		= Others	: Reserved
Parameter 2	-	Reserved
Parameter 3	-	Reserved
Parameter 4	-	Reserved
Parameter 5	-	Reserved

Output Field

B-20 SMAPI BIOS