What Format is C64?
The Commodore 64 (C64) is a legendary computer that was widely used in the 1980s and early 1990s. It was a popular platform for gaming, programming, and creative applications. When it comes to storing and running programs on the C64, the format is crucial. In this article, we’ll explore the different formats associated with the C64 and their characteristics.
PRG Format
The PRG format is the most common format used for storing programs on the C64. PRG stands for "Program," and it’s a type of disk image that contains the raw binary code of a program. The PRG format is used to store the program’s code, including the executable and any associated data files.
D64 Format
The D64 format is another popular format used for storing data and programs on the C64. D64 stands for "Double-Sided Double Density," and it’s a type of disk image that can store up to 640KB of data on each side of a floppy disk. The D64 format is commonly used for storing games, demos, and other types of software.
G64 Format
The G64 format is a lesser-known format used for storing data and programs on the C64. G64 stands for "GCR (Group Coded Recording) data," and it’s a type of disk image that contains the raw GCR data stream of each track on a floppy disk. The G64 format is used for storing data and programs that require precise control over the disk’s physical characteristics.
Table: Comparison of PRG, D64, and G64 Formats
| Format | Description | File Size | Storage Capacity |
|---|---|---|---|
| PRG | Program disk image | 16KB-256KB | N/A |
| D64 | Double-Sided Double Density disk image | 128KB-640KB | 2 sides x 256KB |
| G64 | GCR data stream disk image | 128KB-640KB | 2 sides x 256KB |
Program Loading
The C64 has a unique way of loading programs. When you insert a floppy disk into the C64, the computer reads the disk’s directory and loads the program from the disk into memory. The program is then executed by the computer.
Emulation and Virtualization
In modern times, the C64 has been emulated and virtualized on various platforms, including PC, Mac, and Linux. This allows users to run C64 programs and games on modern hardware without the need for original C64 hardware.
Conclusion
In conclusion, the C64 has a variety of formats that are used for storing and running programs. The PRG format is the most common format used for storing programs, while the D64 format is used for storing data and programs that require more storage capacity. The G64 format is a lesser-known format that is used for storing data and programs that require precise control over the disk’s physical characteristics. Understanding the different formats used by the C64 is essential for running and storing programs on this legendary computer.