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https://opencores.org/ocsvn/or1k/or1k/trunk
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| Rev 39 |
Rev 56 |
| Line 43... |
Line 43... |
_DEFUN (memset, (m, c, n),
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_DEFUN (memset, (m, c, n),
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_PTR m _AND
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_PTR m _AND
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int c _AND
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int c _AND
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size_t n)
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size_t n)
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{
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{
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#ifdef PREFER_SIZE_OVER_SPEED
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#if defined(PREFER_SIZE_OVER_SPEED) || defined(__OPTIMIZE_SIZE__)
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char *s = (char *) m;
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char *s = (char *) m;
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while (n-- != 0)
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while (n-- != 0)
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{
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{
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*s++ = (char) c;
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*s++ = (char) c;
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| Line 59... |
Line 59... |
int count, i;
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int count, i;
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unsigned long buffer;
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unsigned long buffer;
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unsigned long *aligned_addr;
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unsigned long *aligned_addr;
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unsigned char *unaligned_addr;
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unsigned char *unaligned_addr;
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if (TOO_SMALL (n) || UNALIGNED (m))
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if (!TOO_SMALL (n) && !UNALIGNED (m))
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{
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{
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while (n-- != 0)
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{
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*s++ = (char) c;
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}
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return m;
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}
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/* If we get this far, we know that n is large and m is word-aligned. */
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/* If we get this far, we know that n is large and m is word-aligned. */
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aligned_addr = (unsigned long*)m;
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aligned_addr = (unsigned long*)m;
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/* Store C into each char sized location in BUFFER so that
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/* Store C into each char sized location in BUFFER so that
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| Line 101... |
Line 94... |
while (n >= LBLOCKSIZE)
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while (n >= LBLOCKSIZE)
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{
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{
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*aligned_addr++ = buffer;
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*aligned_addr++ = buffer;
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n -= LBLOCKSIZE;
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n -= LBLOCKSIZE;
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}
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}
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/* Pick up the remainder with a bytewise loop. */
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/* Pick up the remainder with a bytewise loop. */
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unaligned_addr = (unsigned char*)aligned_addr;
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s = (char*)aligned_addr;
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while (n)
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}
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while (n--)
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{
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{
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*unaligned_addr++ = (char)c;
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*s++ = (char)c;
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n--;
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}
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}
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return m;
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return m;
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#endif /* not PREFER_SIZE_OVER_SPEED */
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#endif /* not PREFER_SIZE_OVER_SPEED */
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}
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}
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