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152
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1 volatile unsigned long si = 0x89abcdef;
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2 volatile unsigned long long di = 0xfedcba9876543210;
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3
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4 unsigned int a, b, c, d;
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5
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6 int
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7 main (void)
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8 {
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9 /* Check that %A and %B extract the low and high words of a 32-bit value,
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10 respectively. */
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11 __asm__("mov %A1, %0\n" : "=m" (a) : "m" (si));
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12 __asm__("mov %B1, %0\n" : "=m" (b) : "m" (si));
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13 if (a != ((unsigned)si)
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14 || b != ((unsigned)(si >> 16)))
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15 return 1;
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16
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17 /* Check that %A, %B, %C and %D extract the 1st, 2nd, 3rd and 4th words of a
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18 64-bit value, respectively. */
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19 __asm__("mov %A1, %0\n" : "=m" (a) : "m" (di));
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20 __asm__("mov %B1, %0\n" : "=m" (b) : "m" (di));
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21 __asm__("mov %C1, %0\n" : "=m" (c) : "m" (di));
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22 __asm__("mov %D1, %0\n" : "=m" (d) : "m" (di));
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23 if (a != ((unsigned)di)
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24 || b != ((unsigned)(di >> 16))
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25 || c != ((unsigned)(di >> 32))
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26 || d != ((unsigned)(di >> 48)))
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27 return 1;
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28
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29 return 0;
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30 }
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