libgo/runtime/go-rand.c


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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#include "runtime.h"

uint32
runtime_fastrand1(void)
{
	uint32 x;

	x = m->fastrand;
	x += x;
	if(x & 0x80000000L)
		x ^= 0x88888eefUL;
	m->fastrand = x;
	return x;
}