| Function | Address | Description |
|---|---|---|
| DD_SETUP | 015D | Setup disk parameters |
Synopsys
Set up disk parameters. Send a specify command.
Entry Parameters
| Register | Content |
|---|---|
| HL | Address of parameter block |
Exit Parameters
- Always:
- AF BC DE HL IX corrupt, all other registers preserved.
| Byte | Content |
|---|---|
| 0 | Motor on time, unit=100ms |
| 1 | Motor off time, unit=100ms |
| 2 | Write off time, unit=10ms |
| 3 | Head settle time, unit=ms |
| 4 | Step rate, unit=ms |
| 5 | Head unload time, unit=32ms, 32…480 |
| 6 | (Head load time *2)+1, unit=4ms, 4…508 |