BIOS / Int / Int 10 / 10/1X

            INT 10 - VIDEO - GET/SET DAC REGISTERS (EGA, VGA/MCGA)

Input			Output
AX	10h	10h		AX
BX	Register Number			BX
CX	New Green Val	New Blue Val		CX
DX	New Red Val			DX
ES:DI				ES:DI

Set individual DAC register

        All values are in the range 0 to 63.

Input			Output
AX	10h	12h		AX
BX	Starting Register			BX
CX	Number of Registers			CX
				DX
ES:DX	Pointer to Table			ES:DI

Set block of DAC registers

        Table Layout:   BYTE  Red Value
                        BYTE  Green Value
                        BYTE  Blue Value

Input			Output
AX	10h	13h		AX
BX	Data	Mode		BX
CX				CX
DX				DX
ES:DI				ES:DI

Select video DAC color page (VGA only)  (not valid in mode 13h)

Mode	Data
00h = Select Paging Mode	00h = Select 4 blocks of 64 01h = Select 16 blocks of 16
01h = Select Page	Page Number

Input			Output
AX	10h	15h			AX
BX		Register No			BX
CX			Green Value	Blue Value	CX
DX			Red Value		DX
ES:DI					ES:DI

Read individual DAC register

Input			Output
AX	10h	17h		AX
BX	Starting Register			BX
CX	Number of Registers			CX
				DX
ES:DX	Pointer to Buffer			ES:DI

Read block of DAC registers

        Table Layout:   BYTE  Red Value
                        BYTE  Green Value
                        BYTE  Blue Value

Input			Output
AX	10h	18h		AX
BX		PEL Value		BX
CX				CX
DX				DX
ES:DI				ES:DI

*UNDOCUMENTED* Write PEL mask

Input			Output
AX	10h	19h			AX
BX				PEL Value	BX
CX					CX
DX					DX
ES:DI					ES:DI

*UNDOCUMENTED* Read PEL mask

Input			Output
AX	10h	1Ah			AX
BX			Current Page	Paging Mode	BX
CX					CX
DX					DX
ES:DI					ES:DI

Read video DAC color-page state (VGA only)

Paging Mode:    0 = Four pages of 64
                1 = Sixteen pages of 16

Input			Output
AX	10h	1Bh		AX
BX	Starting Register			BX
CX	Number of Registers			CX
DX				DX
ES:DI				ES:DI

Perform gray-scale summing