Digital Equipment Pro-Face PL-6700 43 Series, Руководство пользователя

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Appendix
PL-6700 43 Series User’s Manual App-13
Operation Input Output
Video status save & restore
Reading buffer size
AH =
AL =
CX =
1Ch
00H
Request status
Bit 0: Video hardware status
Bit 1: Video BIOS data area
Bit 2: Expansion pallet register ssave / restore AL =
BX =
1Ch : Successfully executed
Buffer size in 64-byte units
Status save
AH =
AL =
CX =
ES:BX =
1Ch
01h
Request status
Bit 0: Video hardware status
Bit 1: Video BIOS data area
Bit 2:Expansion pallet register ssave / restore
Address of data save area
AL = 1Ch : Successfully executed
Status save as
AH =
AL =
CX =
ES:BX =
1Ch
02h
Request status
Bit 0: Video hardware status
Bit 1: Video BIOS data area
Bit 2: Expansion pallet register ssave / restore
INT 11h Reading System Data
Operation Input Output
Reading system data
AX = System configuration data
AX bit
Bits
Bits
Bits
Bits
Bit
15 & 14
11, 10 & 9
7 & 6
0, 0
0, 1
5 & 4
0, 1
1, 0
1
0
1
: Number of printer ports
: Number of RS-232C
ports
: Number of internal
FDDs
: 1
: 2
: Screen mode
: 40 x 25 line mode
: 80 x 25 line mode
: 80287 CPU yes/no
: No
: Yes
Bits 13, 12, 8, 3, 2 & 0 : Reserved
INT 12h Reading Memory Size
Operation Input Output
Reading memory size AX =Memory size in 1 K units
4 BIOS Lists