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metatag-title=(ON SCROLL..GOSUB | ugBASIC User Manual)
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====== ugBASIC User Manual ======

===== ON SCROLL..GOSUB  =====

===== SYNTAX =====
     ON SCROLL {UP ROW|DOWN ROW|LEFT COLUMN|RIGHT COLUMN} GOSUB [label]

==== PURPOSE ====


This command is used to force a unconditional jump with returning to a pre-defined position 
when the screen is scrolled down by an entire row or column. 



==== EXAMPLE ====
    ON SCROLL UP ROW GOSUB scrolledAway


==== ABBREVIATION ====
   ONSCROLL..GOSUB


==== AVAILABLE ON ====
  * Atari (400/800)
  * Atari XL/XE
  * Commodore 128 (MOS 8502)
  * Commodore 128 (Zilog Z80)
  * Commodore 64
  * TRS-80 Color Computer
  * 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 ON SCROLL..GOSUB|open an issue]] for this keyword on GitHub. Thank you!===== POWERED BY =====

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