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C64 OS PROGRAMMER'S GUIDE
Chapter 5: Using Shared Libraries: Library Reference
This chapter provides an alphabetical list of all the libraries provided by C64 OS and the version in which they were introduced. The libraries are divided into two broad categories, common and uncommon.
Each library has its own page which outlines in detail the routines found within the library, how to call them, their input and output parameters, what they do and gives important context for how to use them correctly.
To learn how to write your own library, see Chapter 10: Writing a Shared Library.
Common Libraries
calendar.lib
Available: 1.0
Standard calendar routines, such as leap year and day of week.
cmp.lib
Available: 1.0
Comparison routines for directory and other sorting.
cnp.lib
Available: 1.07
Commodore Network Protocol packet library.
datetime.lib
Available: 1.0
String to integer and vice versa date/time conversion routines.
dir.lib
Available: 1.0
Directory loading and parsing. Supports all C64 OS supported devices.
fcopy.lib
Available: 1.0
File copy for a single file between any two file references. Supports REU.
fname.lib
Available: 1.04
Useful routines for working with filenames, such as extracting an extension.
gfx.lib
Available: 1.0
Routines for supporting status bar raster split when graphics data is available.
memory.lib
Available: 1.05
Memory management routines that extend the KERNAL memory module.
network.lib
Available: 1.07
Library for network management and coordination.
path.lib
Available: 1.0
Library with routines for standard path and file reference manipulation.
qsort.lib
Available: 1.0
Quick Sort routines paired with cmp.lib. Used by dir.lib to sort directories.
sidplay.lib
Available: 1.0
Library for loading PSID format SID music. Fetches metadata and controls playback.
Uncommon Libraries
checksum.lib
Available: 1.02
Provides standard checksum routines; CRC8, CRC16, CRC32.
crash.lib
Available: 1.0
Crash handler that loads the crashscreen when an exception is unhandled.
flock.lib
Available: 1.0
File lock routines for 1541, 1571, 1581, CMD HD, FD, RAMLink and IDE64.
grab.lib
Available: 1.0
Library for grabbing and saving a screenshot of the standard UI.
i2c.lib
Available: 1.0
Library that implements the I2C bus over the User Port. Two versions exist.
iec.lib
Available: 1.0
Library that scans the IEC bus and builds the detected devices table.
places.lib
Available: 1.0
Library of routines to load, read and manage recents and favorites.
qbasic.lib
Available: 1.05
Standard library to quit to BASIC, with Fast Reboot support.
rec.lib
Available: 1.0
Routines for detecting presence and capacity of 17xx REU.
tarea.lib
Available: 1.06
Library for supporting multi-line text editing in Toolkit.
wrap.lib
Available: 1.0
Softwraps text. Builds a linked-line table used by the TKText Toolkit class.
utils.lib
Available: 1.0
Builds and links the Utilities menu from //os/settings/:utilities.m definitions file.
Next Chapter: Using Toolkit
Table of Contents
This document is subject to revision updates.
Last modified: Jan 24, 2025