{{htmlmetatags>metatag-robots=()
metatag-title=(BLIT | ugBASIC User Manual)
metatag-keywords=(ugBASIC,Commodore 64,Commodore PLUS/4,ZX Spectrum)
metatag-description=(Manual page for BLIT)
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metatag-og:title=(BLIT | ugBASIC User Manual) 
metatag-og:description=(Manual page for BLIT)
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====== ugBASIC User Manual ======

===== BLIT ✓ =====

===== SYNTAX =====
     BLIT identifier AS expression

==== PURPOSE ====


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.



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


See also the following example files:
  * ''[[https://github.com/spotlessmind1975/ugbasic/tree/main/examples/blit_basic_mask.bas|blit_basic_mask.bas]]''


==== ABBREVIATION ====
   Blt


==== AVAILABLE ON ====
  * 
  * Atari (400/800)
  * Atari XL/XE
  * Commodore 128 (MOS 8502)
  * Commodore 128 (Zilog Z80)
  * Commodore 64
  * Commodore 64+REU
  * TRS-80 Color Computer
  * TRS-80 Color Computer 3
  * ColecoVision
  * Amstrad CPC 664
  * Dragon 32
  * Dragon 64
  * Thomson MO5
  * Thomson MO5
  * Olivetti Prodest PC128
  * Commodore PLUS/4
  * SEGA SC-3000
  * SEGA SG-1000
  * 
  * VG-5000
  * Commodore VIC-20
  * ZX Spectrum 48


==== ANY PROBLEM? ====
If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please [[https://github.com/spotlessmind1975/ugbasic/issues/new?title=ISSUE ON BLIT|open an issue]] for this keyword on GitHub. Thank you!===== POWERED BY =====

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