...
| Code Block |
|---|
| language | none |
|---|
| title | DR_RD ($09), read DOR record |
|---|
|
IN:
B = record type
C = buffer length
DE = user buffer address (to store information of read)
IX = DOR handle
OUT, if call successful:
Fc = 0
original IX DOR handle is still valid
C = actual length of information
OUT, if call failed:
Fc = 1
original IX is still valid
A = error code
RC_HAND ($08), bad DOR handle
RC_BAD ($04), bad argument
RC_FAIL ($16), information is not present
Registers changed after return:
..B.DEHL/IXIY same
AF.C..../.... different |
Note
Special record type (1) is used to store filesystem first sector pointer (16 bits) as DOR son (MSB always zero)
| Code Block |
|---|
| language | none |
|---|
| title | DR_WR ($0A), write DOR record |
|---|
|
IN:
B = record type
C = buffer length
DE = user buffer address (to copy information of store)
IX = DOR handle
OUT, if call successful:
Fc = 0
original IX DOR handle is still valid
OUT, if call failed:
Fc = 1
original IX is still valid
A = error code
RC_HAND ($08), bad DOR handle
RC_BAD ($04), bad argument
Registers changed after return:
..BCDEHL/IXIY same
AF....../.... different |
Note
Special record type (1) is used to store filesystem first sector pointer (16 bits) as DOR son (MSB always zero)