| Function | Address | Description |
|---|---|---|
| DD_SEL_FORMAT | 0178 | Select a standard format |
Synopsys
Initialise an XDPB for a standard format. This routine does not affect or consider the freeze flag.
Entry Parameters
| Register | Content |
|---|---|
| A |
Disk type: 0 = Spectrum +3 (Amstrad PCW DD, SS, ST) 1 = Amstrad CPC range system format 2 = Amstrad CPC range data-only format 3 = Amstrad PCW range DD, SS, DT Any other value returns an error |
| IX | Address of XDPB |
Exit Parameters
- If OK:
- Carry true
- A = Disk type
- DE = Size of 2 bit allocation vector
- HL = Size of hash table
- Otherwise:
- Carry false
- A = Error code
- DE HL corrupt
- Always:
- BC IX corrupt, all other registers preserved.