regular meeting with Mr. Off-By-One-Error
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@ -384,7 +384,7 @@ static void fixDrawPattern(fixp_t const t_start,
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// the end of both buffers and move backwards through their space.
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// The pre-decrement operator is used so that GCC utilizes the AVR's
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// built-in pre-decrement variants of the "ld" and "st" instructions.
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while (pPixmap >= (unsigned char *)pixmap) // stop at the beginning
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while (pPixmap != &pixmap[0][0][0]) // stop at the beginning
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{
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// actually draw off-screen contents
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*(--pPixmap) = *(--pOffscreenDistHigh);
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