Appendix
App-21
PL-5700 Series User’s Manual
Operatio n
Input
O
utput
Video status save & restore
R eading buffer
s ize
AH =
AL =
C X =
1Ch
00H
R equest status
B it 0: Video hardware s tatus
B it 1: Video B IOS data area
B it 2: Expans ion pallet register
s s ave / restore
AL =
B X =
1Ch : S ucces s fully
executed
B uffer size in 64-byte units
S tatus s ave
AH =
AL =
C X =
E S:BX =
1Ch
01h
R equest status
B it 0: Video hardware s tatus
B it 1: Video B IOS data area
B it 2:Expans ion pallet register
s s ave / restore
Address of data save area
AL =
1Ch : S ucces s fully
executed
S tatus s ave as
AH =
AL =
C X =
E S:BX =
1Ch
02h
R equest status
B it 0: Video hardware s tatus
B it 1: Video B IOS data area
B it 2: Expans ion pallet register
s s ave / restore
Operatio n
Input
Output
Reading system
data
AX = System configuration
data
AX bit
B its
B its
B its
B its
B it
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 C PU yes/no
: No
: Yes
B its
13, 12, 8, 3, 2 & 0
: R es erved
Operatio n
Input
O utput
Reading memory
size
AX =Memory size in 1 K B units
