Subversion Repositories or1k_old

/* linux/arch/sparc/lib/memset.c
 *
 * This is from GNU libc.
 */
 
#include <linux/types.h>
 
#define op_t unsigned long int
#define OPSIZ (sizeof(op_t))
 
typedef unsigned char byte;
 
void *memset(void *dstpp, char c, size_t len)
{
	long int dstp = (long int) dstpp;
 
	if (len >= 8) {
			size_t xlen;
			op_t cccc;
 
			cccc = (unsigned char) c;
			cccc |= cccc << 8;
			cccc |= cccc << 16;
 
			/* There are at least some bytes to set.
			   No need to test for LEN == 0 in this alignment loop.  */
			while (dstp % OPSIZ != 0) {
				((byte *) dstp)[0] = c;
				dstp += 1;
				len -= 1;
			}
 
			/* Write 8 `op_t' per iteration until less
			 * than 8 `op_t' remain.
			 */
			xlen = len / (OPSIZ * 8);
			while (xlen > 0) {
				((op_t *) dstp)[0] = cccc;
				((op_t *) dstp)[1] = cccc;
				((op_t *) dstp)[2] = cccc;
				((op_t *) dstp)[3] = cccc;
				((op_t *) dstp)[4] = cccc;
				((op_t *) dstp)[5] = cccc;
				((op_t *) dstp)[6] = cccc;
				((op_t *) dstp)[7] = cccc;
				dstp += 8 * OPSIZ;
				xlen -= 1;
			}
			len %= OPSIZ * 8;
 
			/* Write 1 `op_t' per iteration until less than
			 * OPSIZ bytes remain.
			 */
			xlen = len / OPSIZ;
			while (xlen > 0) {
				((op_t *) dstp)[0] = cccc;
				dstp += OPSIZ;
				xlen -= 1;
			}
			len %= OPSIZ;
	}
 
	/* Write the last few bytes.  */
	while (len > 0) {
		((byte *) dstp)[0] = c;
		dstp += 1;
		len -= 1;
	}
 
	return dstpp;
}