20.2.1 Unsupported MS-DOS Interrupts and Functions
The following MS-DOS interrupts are not supported in protected mode and will fail if called:
| 20h |
Terminate Program |
| 25h |
Absolute Disk Read |
| 26h |
Absolute Disk Write |
| 27h |
Terminate and Stay Resident |
The following MS-DOS Interrupt 21h functions are also not supported in protected mode:
| 00h |
Terminate Process |
| 0Fh |
Open File with FCB |
| 10h |
Close File with FCB |
| 14h |
Sequential Read |
| 15h |
Sequential Write |
| 16h |
Create File with FCB |
| 21h |
Random Read |
| 22h |
Random Write |
| 23h |
Get File Size |
| 24h |
Set Random Record Number |
| 27h |
Random Block Read |
| 28h |
Random Block Write |