for the sake of interoperability...
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@ -156,8 +156,8 @@ static void bitmap_drawViewport(bitmap_t const *const pBitmap,
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static void bitmap_recalculateVector(bitmap_t const *const pBitmap,
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unsigned char const x,
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unsigned char const y,
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char *const pdx,
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char *const pdy)
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signed char *const pdx,
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signed char *const pdy)
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{
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if (((x + *pdx) > (pBitmap->nXDomain)) || ((x + *pdx) < 0))
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{
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@ -212,8 +212,8 @@ void bitmap_scroll(unsigned char const nWidth,
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// initial starting point
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unsigned char x = bitmap.nXDomain > 0 ? random8() % bitmap.nXDomain : 0;
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unsigned char y = bitmap.nYDomain > 0 ? random8() % bitmap.nYDomain : 0;
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char dx = 0;
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char dy = 0;
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signed char dx = 0;
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signed char dy = 0;
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// remove garbage from screen
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clear_screen(0);
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