mirror of
https://github.com/nArnoSNES/tcc-65816.git
synced 2024-05-31 22:41:28 +00:00
97 lines
1.7 KiB
C
97 lines
1.7 KiB
C
/* Copyright (C) 2002 Free Software Foundation.
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Test memset with various combinations of pointer alignments and lengths to
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make sure any optimizations in the library are correct.
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Written by Michael Meissner, March 9, 2002. */
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#include <string.h>
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#ifndef MAX_OFFSET
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#define MAX_OFFSET (sizeof (long long))
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#endif
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#ifndef MAX_COPY
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#define MAX_COPY (10 * sizeof (long long))
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#endif
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#ifndef MAX_EXTRA
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#define MAX_EXTRA (sizeof (long long))
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#endif
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#define MAX_LENGTH (MAX_OFFSET + MAX_COPY + MAX_EXTRA)
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static union {
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char buf[MAX_LENGTH];
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long long align_int;
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long double align_fp;
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} u;
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char A = 'A';
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main ()
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{
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int off, len, i;
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char *p, *q;
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for (off = 0; off < MAX_OFFSET; off++)
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for (len = 1; len < MAX_COPY; len++)
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{
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for (i = 0; i < MAX_LENGTH; i++)
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u.buf[i] = 'a';
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p = memset (u.buf + off, '\0', len);
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if (p != u.buf + off)
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abort ();
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q = u.buf;
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for (i = 0; i < off; i++, q++)
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if (*q != 'a')
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abort ();
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for (i = 0; i < len; i++, q++)
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if (*q != '\0')
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abort ();
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for (i = 0; i < MAX_EXTRA; i++, q++)
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if (*q != 'a')
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abort ();
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p = memset (u.buf + off, A, len);
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if (p != u.buf + off)
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abort ();
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q = u.buf;
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for (i = 0; i < off; i++, q++)
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if (*q != 'a')
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abort ();
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for (i = 0; i < len; i++, q++)
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if (*q != 'A')
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abort ();
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for (i = 0; i < MAX_EXTRA; i++, q++)
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if (*q != 'a')
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abort ();
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p = memset (u.buf + off, 'B', len);
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if (p != u.buf + off)
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abort ();
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q = u.buf;
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for (i = 0; i < off; i++, q++)
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if (*q != 'a')
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abort ();
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for (i = 0; i < len; i++, q++)
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if (*q != 'B')
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abort ();
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for (i = 0; i < MAX_EXTRA; i++, q++)
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if (*q != 'a')
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abort ();
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}
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exit (0);
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}
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