Available on: all targets
See also: BLIT (data type) BLIT IMAGE

BLIT (instruction)

The “BLITTING” is a data operation used in computer graphics in which several bitmaps are combined into one using a boolean (or mathematical) function. The operation involves at least two bitmaps: a “source” (or “foreground”) and a “destination” (or “background”), and other fields, called “masks” or something like that. The result may be written to a final bitmap, though often it replaces the “destination” field.

The pixels of each are combined bitwise according to the specified BLIT OPERATION (BOP) and the result is then written to the destination. The BOP is essentially a boolean formula, that can be written using BLIT instructrion. The most obvious BOP overwrites the destination with the source. Other BOPs may involve AND, OR, XOR, and other more complex operations.

syntax example abbreviation back to keywords

SYNTAX

 BLIT identifier AS expression


Legend
  • id : identifier
  • type : datatype
  • v : value
  • "..." : string
  • [...] : optional

EXAMPLE

 BLIT bop1 AS ( ( SOURCE ) AND ( DESTINATION ) )


Used in:

ABBREVIATION: Blt

Join BASIC 10Liner Contest with ugBASIC!

An interesting competition is held at the beginning of each year: the BASIC 10Liner Contest. It is possible to use ugBASIC to participate in the next "BASIC10Liner" competition, in the following categories:

  • PUR-120 - A game in 10 lines of max 120 characters (w/abbrev.)
  • EXTREME-256 - A game in 10 lines of max 256 characters (w/abbrev.)
  • SCHAU - Any program in 10 lines of max 256 characters (w/abbrev.)
In order to reduce space you can use this abbreviation for this instruction: 

BLIT (instruction) ↔ Blt

Any problem?

If you have found a problem with this keyword, if you think there is a bug or, more simply, you would like it to be improved, open an issue for this example on GitHub.
Thank you!

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