SECTION 6
Conversions and Interfaces
PEN*KEY
R
6100 Computer Programmer’s Reference Guide 6-37
INT 10h, Function AH = 01h: Set Cursor Type
BIOS
The cursor is not displayed in graphics modes and the selected cursor type apĆ
plies to all video pages.
curstype
is set to the value in CX. The cursor can be disĆ
played on up to eight scan rows, numbered 0 (top) to 7 (bottom). The default setĆ
ting is CH = 6, CL = 7. Setting bit 5 of CH causes the cursor to disappear.
On Entry:
AH = 01h
CH = Value 0ć7 = Start scan row in character box.
CL = Value 0ć7 = Ending scan row in character box.
On Return:
None
VROTATE
This function is ignored. The cursor shape does not change, so CH and CL are
ignored with respect to cursor shape. The cursor top and bottom lines are saved
to memory. The function does control whether the cursor is on or off for the curĆ
rently selected video page. If CH is equal to 0XE0, the cursor is turned off. This
checks for PL/N emulation of cursor on and cursor off. If this test fails and if bit
5 of CH is set, the cursor is turned off. Otherwise, the cursor is turned on.
On Entry:
AH = 01h
CH = Top cursor scan line
CL = Bottom cursor scan line
On Return:
None
INT 10h, Function AH = 01F9h: Read V25 Comparator Port
4000API
On Entry:
AH = 01h
AL = F9h
BH = Mask used with output of PORTT
BL = Trip voltage threshold to compare with
On Return:
BL =
PORTT value
Zero = Result of comparison
Set = Current value below input tripĆvoltage threshold
Reset = Current value above input tripĆvoltage threshold
6. Conversions and
Interfaces
Содержание PEN*KEY 6100
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Страница 22: ...Preface 8 PEN KEYR 6100 Computer Programmer s Reference Guide PREFACE ...
Страница 112: ...SECTION 4 Power Management 4 10 PEN KEYR 6100 Computer Programmer s Reference Guide 4 Power Management ...
Страница 318: ...GENERAL INDEX Index 6 PEN KEYR 6100 Computer Programmer s Reference Guide ...