SECTION 6
Conversions and Interfaces
6-18 PEN*KEY
R
6200/6300 Hand-Held Computer Programmer’s Reference Guide
Table 6Ć1 (Continued)
BIOS Interrupts Supported
INT #
Register Values
BIOS Interrupts
13h
Disk Services
Reset Disk System
AH=00h
Read Last Operation Status
AH=01h
Read Disk Sectors into Memory
AH=02h
Write Disk Sectors from Memory
AH=03h
Verify Sectors
AH=04h
Read Drive Parameters
AH=08h
Get Disk Type
AH=15h
Detect Disk Change
AH=16h
Set Media Type
AH=18h
Disable RAM Drive
AH=DAh
Enable RAM Drive
AH=EAh
Enable Checksum
AH=ECh
14h
Serial Communications Services
Initialize COM Port
AH=00h
Send a Character
AH=01h
Receive a Character
AH=02h
Get Port Status
AH=03h
Extended Initialize
AH=04h
Keyboard Intercept
AH=4Fh
Device Close
AH=81h
Program Termination
AH=82h
Set Event Wait Interval
AX=8300h
15h
System Services
Cancel Event Wait Interval
AX=8301h
System Request Key
AH=85h
Wait
AH=86h
Move Block
AH=87h
Read Extended Memory Size
AH=88h
Switch to Protected Mode
AH=89h
Device Busy
AH=90h
Interrupt Complete
AH=91h
Return System Configuration Parameters Address
AH=C0h
Return Extended BIOS Data Segment (EBDA)
AH=C1h
6. Conversions and
Interfaces