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Changes - CPCWiki

Changes

CRTC

184 bytes added, 18:06, 20 December 2024
/* Overscan bits */
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Note: === Hardware Scrolling === The start address can be manipulated to achieve horizontal and/or vertical hardware scrolling. However, it is a position in word (16 bits), not in byte. So the screen will move two bytes at a timehorizontally. Also, the precision will be one CRTC character vertically.  The first game that used R12/R13 for both horizontal and vertical hardware scrolling is [https://www.cpc-power.com/index.php?page=detail&num=1839 Roland on the Ropes] in 1984.
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