User`s guide

Disk System Reset
Drive Selection
File Creation
File Open
File Close
Directory Search
File Delete
File Rename
Random or Sequential Read
Random or Sequential Write
Interrogate Selected Disks
Set DMA Address
Set/Reset File Attributes
Reset Drive
Set BDOS Multi-Sector Count
Set BDOS Error Mode
Get Disk Free Space
Chain to Program
Flush Buffers
Get/Set System Control Block
Call BIOS
Load Overlay
Call RSX
Truncate File
Set Directory Label
Get File's Date Stamps and Password Mode
Write File XFCB
Set/Get Date and Time
Set Default Password
Return CP/M 3 Serial Number
Get/Set Program Return Code
Parse Filename
2.3.1 File Naming Conventions
Under CP/M 3, a file specification consists of four parts: the drive specifier, the
filename field, the filetype field, and the file password field. The general format for a
command line file specification is shown below:
{d:}filename{.typ}{;password}
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2.3 BDOS File System CP/M 3 Programmer's Guide