uint32_t cpu_mips_get_random (CPUMIPSState *env) { static uint32_t seed = 1; static uint32_t prev_idx = 0; uint32_t idx; /* Don't return same value twice, so get another value */ do { /* Use a simple algorithm of Linear Congruential Generator * from ISO/IEC 9899 standard. */ seed = 1103515245 * seed + 12345; idx = (seed >> 16) % (env->tlb->nb_tlb - env->CP0_Wired) + env->CP0_Wired; } while (idx == prev_idx); prev_idx = idx; return idx; }