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back2root:ibm-pc-ms-dos:interrupts:int_10:int_10_03
Table des matières
INT 0x10 - 0x03 - Read Cursor Position and Size
Request/Call:
| reg | value | descr |
|---|---|---|
| AH | 0x03 | |
| BH | parm | video page |
Return:
| reg | descr |
|---|---|
| CH | cursor starting scan line (low order 5 bits) |
| CL | cursor ending scan line (low order 5 bits) |
| DH | row (y) |
| DL | column (x) |
Notes & Comments
- returns data from BIOS DATA AREA locations 40:50, 40:60 and 40:61
- the 6845 can also be used to read the cursor position
- the return data can be circumvented by direct port I/O to the 6845 CRT Controller since this function returns the data found in the BIOS Data Area without actually checking the controller
See also INT 10h, 02h, INT 10h, 01h
back2root/ibm-pc-ms-dos/interrupts/int_10/int_10_03.txt · Dernière modification : 2023/02/19 15:47 de frater
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