IBM 770 manual SMAPI BIOS B-23, Output Field

Output Field

Return Code	-	Error status
Auxiliary Return Code -		Reserved
Parameter 1	-	Bits 15-8		: Reserved
		Bits 7-ð : Capability of display device function
		Bit ð -	Display function type
		=	ð	: Not support
		=	1	: Support
		Bits 7-1 : Reserved
Parameter 2	-	Bits 15-8		Display current status
		Bit ð -	Built-in display (panel) status
		=	ð	: Disable
		=	1	: Enable

Bit 1 - External CRT status

=ð : Disable

=1 : Enable Bit 2 - TV status

=ð : Disable

=1 : Enable Bits 6-3 : Reserved Bit 7 - Dual enable flag

=ð : Disable

=1 : Enable

Bits 7-ð : Display function type

	=	ððh : No TV-out model
	=	ð1h : Not support model for simultaneous
Parameter 3	- Reserved	display of TV and CRT
Parameter 4	- When parameter 2 (bits 7-ð) is ð1h:
	Bits 31-16 : Reserved
	Bits 15-ð : Display selection mode
	Bit ð -	Display selection mode
	=	ð : LCD - CRT selection mode
	=	1 : LCD - TV selection mode
	Bits 7-1 : Reserved
Parameter 5	- Reserved

SMAPI BIOS B-23