All pastes #743094 Raw Edit

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public text v1 · immutable
·published 2007-10-20 02:34 UTC
rendered paste body
#define SCREEN  0x4c00
#define COLUMNS 240
#define ROWS    128
#define BYTES_PER_ROW  (COLUMNS / 8)

void scroll_up(int cols, int rows)
{
	int i;

	for (i = 0; i < rows - 1; i++)
	{
	    char *dst = SCREEN + (i * BYTES_PER_ROW);
	    memcpy(dst, dst + BYTES_PER_ROW, cols / 8);
	}
}

/* example */
scroll_up(160, 100);