Michael L. Mohle' Princeton-Galax Systems
9 Grover Ave Princeton, NJ 08540
Source: BEA751
Interapplication Control Area (ICA) (04F0 - 04FF)
DOS / ROM BASIC Control Area (0500 - 05FF)
| Address | Ln | Function |
| 0500 | 01 | DOS Print-screen control (00 = Ok, 01 = in process, FF = error) |
| 0501 | 03 | |
| 0504 | 01 | DOS Single-diskette drive code (00 = drive A, 01 = drive B) |
| 0505 | 0B | |
| 0510 | 02 | BASIC default data segment |
| 0512 | 04 | BASIC clock-tick interrupt-vector |
| 0516 | 04 | BASIC break-key interrupt-vector |
| 051A | 04 | BASIC diskette-error interrupt-vector |
| 051E | E2 | BASIC Reserved |