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26 lines
538 B
26 lines
538 B
#include <x86.h>
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#include <stdlib.h>
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static unsigned long long next = 1;
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/* *
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* rand - returns a pseudo-random integer
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*
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* The rand() function return a value in the range [0, RAND_MAX].
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* */
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int
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rand(void) {
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next = (next * 0x5DEECE66DLL + 0xBLL) & ((1LL << 48) - 1);
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unsigned long long result = (next >> 12);
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return (int)do_div(result, RAND_MAX + 1);
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}
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/* *
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* srand - seed the random number generator with the given number
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* @seed: the required seed number
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* */
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void
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srand(unsigned int seed) {
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next = seed;
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}
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