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Rev 40 Rev 49
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    offset += step;
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    offset += step;
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  }
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  }
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}
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}
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void video_putstring(int y, int x, unsigned short attr, char *s) {
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void video_putstring(int y, int x, unsigned short attr, char *s) {
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  if (x < 0) { /* means 'center out' */
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    int slen;
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    for (slen = 0; s[slen] != 0; slen++); /* faster than strlen() */
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    x = 40 - (slen >> 1);
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  }
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  x += (y << 6) + (y << 4); /* I use x as an offset now */
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  x += (y << 6) + (y << 4); /* I use x as an offset now */
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  while (*s != 0) {
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  while (*s != 0) {
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    scr[x++] = attr | *s;
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    scr[x++] = attr | *s;
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    s++;
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    s++;
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  }
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  }