Module types 

Structs

SequentialText

Structured representation of sequential text files on disk. CP/M terminates with 0x1a to the next 128-byte record boundary. For random access text use fs::Records instead.

TextConverter

Transforms between UTF8 and CP/M text. CP/M text is +ASCII with CRLF line separators, and 0x1A overall terminator. non-ASCII found in the CP/M text is put as ASCII null. non-ASCII found in a UTF8 string to convert is refused.

Enums

EntryType

Error

Enumerates CP/M errors. The Display trait will print the long message.

Ptr

Pointers to the various levels of CP/M disk structures. These just wrap integers and are supposed to help identify what is being indexed.

Constants

DELETED

Status byte for a deleted file, also fill value for unused blocks.

DIR_ENTRY_SIZE

Size of the directory entry in bytes, always 32

INVALID_CHARS

Characters forbidden from file names

LABEL

Status byte for a label

LOGICAL_EXTENT_SIZE

There is a subdivision of an extent, sometimes called a logical extent, which has a fixed size. See the EXM field in the disk parameter block.

MAX_LOGICAL_EXTENTS

Maximum number of logical extents in a file, array is indexed by major version number

RECORD_SIZE

Unit of data transfer in bytes as seen by the CP/M BDOS. This was the sector size on the original 8 inch disks.

TIMESTAMP

Status byte for a timestamp

USER_END

Largest possible user number plus one