INT 10 - VIDEO - FUNCTIONALITY/STATE INFORMATION (PSIBM PS/2, any model,VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers./MCGAMulti-Color Graphics Array(Multi-Color Graphics Array) The low-end color adapter offered in IBMInternational Busiuness Machines's early PS/2IBM PS/2, any model series machines.) AH = 1Bh BX = implementation type 0000h return funtionality/state information ES:DI -> 64-byte buffer for state information (see #00040) Return: AL = 1Bh if function supported ES:DI buffer filled with state information BUG: Trident 8900 (BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. D3.0 1991/11/12) and Trident 9000 (C3.0 1991/10/25) do not correctly set the fields at offsets 27h and 29h of the state information SeeAlso: AH=15h,AX=1A00h,AX=1F01h Format of MCGA+ state information: Offset Size Description (Table 00040) 00h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. address of static funtionality table (see #00045) 04h BYTE video mode in effect 05h WORD number of columns 07h WORD length of regen buffer in bytes 09h WORD starting address of regen buffer 0Bh WORD cursor position for page 0 0Dh WORD cursor position for page 1 0Fh WORD cursor position for page 2 11h WORD cursor position for page 3 13h WORD cursor position for page 4 15h WORD cursor position for page 5 17h WORD cursor position for page 6 19h WORD cursor position for page 7 1Bh WORD cursor "type" (start/stop scan lines) 1Dh BYTE active display page 1Eh WORD CRTC port address 20h BYTE current setting of PORTIBM PC Portable (uses same BIOS as XT) 03x8h 21h BYTE current setting of PORTIBM PC Portable (uses same BIOS as XT) 03x9h 22h BYTE number of rows - 1 23h WORD bytes/character 25h BYTE display combination code of active display 26h BYTE DCC(Display Combination Code) A number which indicates both the type of display adapter board and the type of monitor attached to the video board. of alternate display 27h WORD number of colors supported in current mode (0000h = mono) 29h BYTE number of pages supported in current mode 2Ah BYTE number of scan lines active (0,1,2,3) = (200,350,400,480) Tseng ET3000: (4,5,6 = 512,600,768) 2Bh BYTE primary character block 2Ch BYTE secondary character block 2Dh BYTE miscellaneous flags (see #00041) 2Eh BYTE non-VGA mode support (see #00042) 2Fh 2 BYTEs reserved (00h) 31h BYTE video memory available 00h = 64K, 01h = 128K, 02h = 192K, 03h = 256K 32h BYTE save pointer state flags (see #00043) 33h BYTE display information and status (see #00044) 34h 12 BYTEs reserved (00h) Bitfields for miscellaneous flags: Bit(s) Description (Table 00041) 0 all modes on all displays on 1 gray summing on 2 monochrome display attached 3 default palette loading disabled 4 cursor emulation enabled 5 0 = intensity; 1 = blinking 6 flat-panel display is active 7 unused (0) SeeAlso: #00040 Bitfields for non-VGA mode support: Bit(s) Description (Table 00042) 7-5 reserved 4 132-column mode supported 3 =1 MFI attributes enabled (see AH=12h/BL=37h) =0 VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. attributes 2 16-bit VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. graphics present 1 adapter interface driver required 0 BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. supports information return for adapter interface SeeAlso: #00040 Bitfields for save pointer state flags: Bit(s) Description (Table 00043) 0 512 character set active 1 dynamic save area present 2 alpha font override active 3 graphics font override active 4 palette override active 5 DCC(Display Combination Code) A number which indicates both the type of display adapter board and the type of monitor attached to the video board. override active 6-7 unused (0) SeeAlso: #00040 Bitfields for display information and status: Bit(s) Description (Table 00044) 7 640x480 flat-panel can be used simultaneously with CRT controller 6-3 reserved 2 color display 1 flat-panel display active 0 flat-panel display attached SeeAlso: #00040 Format of Static Functionality Table: Offset Size Description (Table 00045) 00h BYTE modes supported 1 bit 0 to bit 7 = 1 modes 0,1,2,3,4,5,6,7 supported 01h BYTE modes supported 2 bit 0 to bit 7 = 1 modes 8,9,0Ah,0Bh,0Ch,0Dh,0Eh,0Fh supported 02h BYTE modes supported 3 bit 0 to bit 3 = 1 modes 10h,11h,12h,13h supported bit 4 to bit 7 unused (0) 03h BYTE (IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911.) reserved (Tseng ET3000/4000) modes supported 4 bit 0 to bit 7 = modes 18h-1Fh supported 04h BYTE (IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911.) reserved (Tseng ET3000/4000) modes supported 5 bit 0 to bit 7 = modes 20h-27h supported 05h BYTE (IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911.) reserved (Tseng ET3000/4000) modes supported 6 bit 0 to bit 7 = modes 28h-2Fh supported 06h BYTE (IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911.) reserved (Tseng ET3000/4000) modes supported 7 bit 0 to bit 7 = modes 30h-37h supported 07h BYTE scan lines supported bit 0 to bit 2 = 1 if scan lines 200,350,400 supported bits 3-7 = unused (0) 08h BYTE total number of character blocks available in text modes 09h BYTE maximum number of active character blocks in text modes 0Ah WORD miscellaneous function support flags (see #00046) 0Ch WORD reserved 0Eh BYTE save pointer function flags (see #00047) 0Fh BYTE reserved SeeAlso: #00040 Bitfields for miscellaneous function support flags: Bit(s) Description (Table 00046) 0 all modes on all displays function supported 1 gray summing function supported 2 character font loading function supported 3 default palette loading enable/disable supported 4 cursor emulation function supported 5 EGAEnhanced Graphics Adapter(Enhanced Graphics Adapter) IBMInternational Busiuness Machines's second color video board for the IBMInternational Busiuness Machines PCIBM PC family, capable of a maximum resolution of 640x350 pixels in 16 simultaneous colors of a total of 64 possible colors. palette present 6 color palette present 7 color-register paging function supported 8 light pen supported (see AH=04h) 9 save/restore state function 1Ch supported 10 intensity/blinking function supported (see AX=1003h) 11 Display Combination Code supported (see #00039) 12-15 unused (0) SeeAlso: #00040 Bitfields for save pointer function flags: Bit(s) Description (Table 00047) 0 512 character set supported 1 dynamic save area supported 2 alpha font override supported 3 graphics font override supported 4 palette override supported 5 DCC(Display Combination Code) A number which indicates both the type of display adapter board and the type of monitor attached to the video board. extension supported 6-7 unused (0) SeeAlso: #00040