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ugbasic:user:kw:dload
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ugBASIC User Manual

DLOAD

SYNTAX

   DLOAD filename [FROM offset] [TO address] [SIZE size]

PURPOSE

The DLOAD command load data from a mass storage (normally, a floppy disk) into the computer's memory. This data can be programs, numeric data, text, or any other information that has previously been saved to disk.

The DLOAD command was primarily used to load numeric data, text, or images for use within a program. Some games allowed you to save the current state of the game to a disk using DLOAD so you could resume playing at a later time.

The syntax allows you to load a specific file (filename) starting from a specific offset within the file, towards a specific address in memory for a certain number of bytes. Note that the behavior of this instruction strictly depends on the target where it is executed. It follows that not all options are necessarily available on every target.

The time it takes to load a file depended on the speed of the drive and the size of the file. Files loaded had to be in the correct format for the computer and the program using them. The amount of data that could be loaded was limited by the available RAM.

On the atari and atarixl target, it is not possible to omit the number of bytes and the starting address.

On the c64 and c128 target, you cannot indicate the offset and the size.

EXAMPLE

  DLOAD "test" TO finalAddress SIZE 16

ABBREVIATION

 Dl

AVAILABLE ON

  • Commodore 128 (MOS 8502)
  • Commodore 64
  • Commodore VIC-20
  • Atari (400/800)
  • Atari XL/XE
  • Commodore 64+REU
  • Amstrad CPC 664
  • TRS-80 Color Computer 3
  • TRS-80 Color Computer

SEE ALSO

ANY PROBLEM?

If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

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