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Note: This IBM PC BIOS API call is for DOS/Win16 personality only. Use Family API for portability.
Note: osFree Macro Library provides macros for most of functions
BIOS API
All registers saved on entry and restores on return
BIOS Interrupts
| Interrupt vector | Description | Version |
| 10H | Video I/O | 5150+ |
| 11H | Equipment | 5150+ |
| 12H | Memory size | 5150+ |
| 13H | Diskette I/O | 5150+ |
| 14H | RS232 I/O | 5150+ |
| 15H | Cassette I/O | 5150+ |
| 16H | Keyboard I/O | 5150+ |
| 17H | Printer I/O | 5150+ |
| 18H | ROM BASIC | 5150+ |
| 19H | Bootstrap | 5150+ |
| 1AH | Time of date | 5150+ |
