Chapter 8 - Using MS-DOS
8-30
PL-5910 Series User Manual
8.3
BIOS List
INT 5h Display Hard Copy
Operation
Input
Output
0050:0000h Print-screen flag
0: Hard copy function unused or
completed successfully
1: Now printing
-1: Error
Screen hard copy
Operation
Input
Output
Setting video mode
AH =
AL =
00h
Value of selected mode (Bits 0 to 6),
Video RAM clear (Bit 7)
Setting cursor shape
AH =
CG =
CL =
01h
Cursor start position and display
Cursor end position
Setting cursor
position
AH =
BH =
DH =
DL =
02h
Page No.
Value of specified line
Value of specified column
Reading cursor
position
AH =
BH =
03h
Page No.
CH =
CL =
DH =
DL =
Cursor start position and display
Cursor end position
Current cursor line position
Current cursor column position
Reading light pen
position
AH = 04h
AH =
=
BX =
CH =
CX =
DH =
DL =
0: Light pen switch is off.
1: Light pen switch is on.
X coordinate (0 - 319, 639)
Y coordinate (0 - 199)
Y coordinate in new graphic mode (0, XXX)
Light pen line position in character units
Light pen column position in character units
Switching active
page
AH =
AL =
05h
Page No.
Scrolling up
AH =
AL =
BH =
CH =
CL =
DH =
DL =
06h
Number of lines to scroll up
Attribute of line to clear
Highest line in scroll up range
Farthest left column in scroll up range
Lowest line in scroll up range
Farthest right column in scroll up range
Scrolling down
AH =
AL =
BH =
CH =
CL =
DH =
DL =
07h
Number of lines to scroll down
Attribute of line to clear
Highest line in scroll down range
Farthest left column in scroll down
range
Lowest line in scroll down range
Farthest right column in scroll down
range
INT 10h Video BIOS
